CROSS-REFERENCE TO RELATED APPLICATION

This application claims the benefit of Chinese Patent Application No.

CN202210574623.4 filed on May 25, 2022 in the State Intellectual Property Office of China, the whole disclosure of which is incorporated herein by reference.

BACKGROUND OF THE INVENTION

Field of the Invention

The present invention relates to a motion mechanism, a heating device including the motion mechanism, and a heat shrinking machine including the heating device.

Description of the Related Art

In the prior art, the motion mechanism in the heat shrinking machine can only drive the heating device to move between different stations, but cannot drive the heating device to switch between different orientations. This leads to that the heating device of the heat shrinking machine can only heat the heat shrinking tube on the end of the cable, which leads to the limited application of the heat shrinking machine and low work efficiency.

SUMMARY OF THE INVENTION

The present invention has been made to overcome or alleviate at least one aspect of the above mentioned disadvantages.

According to an aspect of the present invention, there is provided a motion mechanism. The motion mechanism comprises of: a first link rod connected to a driving mechanism to be moved with it; a second link rod which is pivotally connected with the first link rod to rotate around a pivot axis relative to the first link rod; a guide pin fixed on the second link rod; and a slot rail formed with a guide slot which is sliding matched with the guide pin to guide the guide pin to move along it. When the first link rod is driven to move, the second link rod drives an operation unit connected with it to switch between different orientations, so that the driven operation unit has different orientations.

According to an exemplary embodiment of the present invention, the guide slot is herringbone and comprises of: a first slot extending along a first direction; a second slot which is on the same straight line with the first slot and is separated from the first slot in the first direction; a third slot extending in a second direction perpendicular to the first direction and the pivot axis; a first transition slot which is located between one end of the first slot and one end of the third slot; and a second transition slot which is located between one end of the second slot and one end of the third slot. When the guide pin moves to a first predetermined position in the first slot, the operation unit connected with the second link rod is moved to a first operation station and switched to a first operation orientation; When the guide pin moves to a second predetermined position in the second slot, the operation unit connected with the second link rod is moved to a second operation station and switched to a second operation orientation; When the guide pin moves to a third predetermined position in the third slot, the operation unit connected with the second link rod is moved to a standby station and switched to a standby orientation.

According to another exemplary embodiment of the present invention, the guide slot comprises of: a first slot extending along a first direction; a third slot extending in a second direction perpendicular to the first direction and the pivot axis; and a first transition slot which is located between one end of the first slot and one end of the third slot. When the guide pin moves to a first predetermined position in the first slot, the operation unit connected with the second link rod is moved to a first operation station and switched to a first operation orientation; When the guide pin moves to a third predetermined position in the third slot, the operation unit connected with the second link rod is moved to a standby station and switched to a standby orientation.

According to another exemplary embodiment of the present invention, the first slot and the second slot extend on a first straight line parallel to the first direction, and the pivot axis intersects the first straight line; the operation unit in the standby orientation is switched to the first operation orientation after being rotated 90 degrees about the pivot axis in one direction; the operation unit in the standby orientation is switched to the second operation orientation after being rotated 90 degrees about the pivot axis in another direction opposite to the one direction.

According to another exemplary embodiment of the present invention, the motion mechanism further comprises of: a guide rail extending in a straight line along the first direction; a sliding block which is slidably mounted on the guide rail; and a driving device for driving the sliding block to move in a straight line along the guide rail. The sliding block is fixedly connected with the first link rod, so that the first link rod is capable of being driven to move in a straight line in the first direction by driving the sliding block.

According to another exemplary embodiment of the present invention, the driving device comprises of: a bracket; a pair of pulleys rotatably mounted on the bracket; a transmission belt connected between the pair of pulleys; a motor which is fixed on the bracket and its output shaft is connected with the pulley; and a connecting piece fixedly connected to the transmission belt and the sliding block. When the motor rotates, the transmission belt drives the sliding block to move in a straight line along the guide rail.

According to another exemplary embodiment of the present invention, the motion mechanism further comprises a mounting plate for mounting the motion mechanism, the slot rail and the bracket are fixed to the mounting plate, and the guide rail is fixed to the bracket.

According to another aspect of the present invention, there is provided a heating device. The heating device comprises of: a heating unit for heating; and the above motion mechanism. The second link rod of the motion mechanism is fixedly connected to the heating unit to drive the heating unit to convert between different orientations, so that the heating unit has different orientations.

According to an exemplary embodiment of the present invention, the heating unit comprises of: a base plate fixedly connected to the second link rod of the motion mechanism and extending along a third direction; and a pair of heating plates mounted on the base plate and perpendicular to the third direction. The third direction is parallel to the pivot axis of the second link rod, and at least one of the pair of heating plates is movable along the third direction, so that a spacing between the pair of heating plates is capable of being adjusted to adapt to a diameter of a cable.

According to another exemplary embodiment of the present invention, the heating unit further comprises of: a guiding rail extending straightly along the third direction; a first sliding block slidably mounted on the guiding rail; and a second sliding block slidably installed on the guiding rail. One of the pair of heating plates is fixedly connected to the first sliding block, and the other is fixedly connected to the second sliding block.

According to another exemplary embodiment of the present invention, a plurality of locking holes spaced in the third direction are formed on the base plate; the heating unit further comprises of: a first cross beam which is fixedly connected to one end of one of the heating plates and the first sliding block, and is formed with a first through hole; a second cross beam which is fixedly connected to one end of the other of the heating plates and the second sliding block, and is formed with a second through hole; a first locking pin which is inserted into the first through hole and the corresponding locking hole to fix the one heating plate at a first position; and a second locking pin which is inserted into the second through hole and the corresponding locking hole to fix the other heating plate at a second position.

According to another exemplary embodiment of the present invention, the heating unit further comprises of: a first lifting device which is mounted on the base plate and connected to the first sliding block to drive the first sliding block to move along the guiding rail; and a second lifting device which is mounted on the base plate and connected to the second sliding block to drive the second sliding block to move along the guiding rail.

According to another exemplary embodiment of the present invention, the first lifting device comprises of: a first motor fixed to the base plate; and a first transmission mechanism which is connected between the output shaft of the first motor and the first sliding block. The second lifting device comprises of: a second motor fixed to the base plate; and a second transmission mechanism which is connected between the output shaft of the second motor and the second sliding block. According to another exemplary embodiment of the present invention, the heating unit comprises of: a screw rod, the upper part and lower part of which are respectively formed with a first thread and a second thread; and a driving motor which is mounted on the base plate and connected with the screw rod to drive the screw rod to rotate. The first thread and the second thread have opposite thread directions and are respectively connected with the first sliding block and the second sliding block; when the driving motor drives the screw rod to rotate, the screw rod drives the pair of heating plates to move in a direction close to or far from each other to adjust the spacing between the pair of heating plates.

According to another exemplary embodiment of the present invention, the guide slot of the motion mechanism is herringbone and comprises of: a first slot extending along the first direction; a second slot which is on the same straight line with the first slot and is separated from the first slot in the first direction; a third slot extending in a second direction perpendicular to the first direction and the pivot axis; a first transition slot which is located between one end of the first slot and one end of the third slot; and a second transition slot which is located between one end of the second slot and one end of the third slot. When the guide pin moves to a first predetermined position in the first slot, the operation unit connected with the second link rod is moved to a first operation station and switched to a first operation orientation; When the guide pin moves to a second predetermined position in the second slot, the operation unit connected with the second link rod is moved to a second operation station and switched to a second operation orientation; When the guide pin moves to a third predetermined position in the third slot, the operation unit connected with the second link rod is moved to a standby station and switched to a standby orientation.

According to another exemplary embodiment of the present invention, the guide slot of the motion mechanism comprises of: a first slot extending along the first direction; a third slot extending in a second direction perpendicular to the first direction and the pivot axis; and a first transition slot which is located between one end of the first slot and one end of the third slot. When the guide pin moves to a first predetermined position in the first slot, the operation unit connected with the second link rod is moved to a first operation station and switched to a first operation orientation; When the guide pin moves to a third predetermined position in the third slot, the operation unit connected with the second link rod is moved to a standby station and switched to a standby orientation.

According to another exemplary embodiment of the present invention, the first slot and the second slot extend on a first straight line parallel to the first direction, and the pivot axis intersects the first straight line; the operation unit in the standby orientation is switched to the first operation orientation after being rotated 90 degrees about the pivot axis in one direction; the operation unit in the standby orientation is switched to the second operation orientation after being rotated 90 degrees about the pivot axis in another direction opposite to the one direction.

According to another aspect of the present invention, there is provided a heat shrinking machine. The heat shrinking machine comprises of: a machine body comprising a receiving chamber at a standby station and a support platform at a heating station; a cable clamp which is installed on the support platform to clamp a cable with heat shrinkable tube; and the above heating device which is installed on the machine body to heat the heat shrink tube on the clamped cable. The motion mechanism is used to drive the heating unit to be moved between the standby station and the heating station and to be switched between a standby orientation and a heating orientation; When the heating unit is moved to the standby station, the heating unit is located in the receiving chamber and in the standby orientation; When the heating unit is moved to the heating station, the heating unit is located on the support platform and in the heating orientation.

According to an exemplary embodiment of the present invention, the support platform includes a first support platform and a second support platform which are located at the first heating station and the second heating station respectively; the first support platform and the second support platform are arranged side by side and are respectively located at the left and right sides of the receiving chamber; the motion mechanism is used to drive the heating unit to be moved between the standby station, the first heating station and the second heating station, and to be switched between the standby orientation, the first heating orientation and the second heating orientation; When the heating unit is moved to the first heating station, the heating unit is located on the first support platform and in the first heating orientation; When the heating unit is moved to the second heating station, the heating unit is located on the second support platform and in the second heating orientation.

According to another exemplary embodiment of the present invention, the heating unit in the standby orientation is switched to the first heating orientation after being rotated 90 degrees to the left around the pivot axis of the second link rod; the heating unit in the standby orientation is switched to the second heating orientation after being rotated 90 degrees to the right about the pivot axis of the second link rod.

According to another exemplary embodiment of the present invention, a row of cable clamps is arranged on the top surface of at least one of the front, rear and left sides of the first support platform; a row of cable clamps is arranged on the top surface of at least one of the front, rear and right sides of the second support platform; when the heating unit is moved onto the first support platform, the cable is capable of being inserted between the pair of heating plates of the heating unit from either side of the front, rear and left sides of the first support platform; when the heating unit is moved to the second support platform, the cable is capable of being inserted between the pair of heating plates of the heating unit from either side of the front, rear and right sides of the second support platform.

According to another exemplary embodiment of the present invention, an opening is respectively formed on the left side wall and the right side wall of the receiving chamber to allow the heating unit to enter and exit the receiving chamber; a safety door for opening and closing the opening is respectively installed on the left side wall and the right side wall of the receiving chamber; when the heating unit heats the heat shrinkable tube on the first support platform, the safety door installed on the left side wall is opened to open the opening on the left side wall, and the safety door installed on the right side wall is closed to close the opening on the right side wall; when the heating unit heats the heat shrinkable tube on the second support platform, the safety door installed on the right side wall is opened to open the opening on the right side wall, and the safety door installed on the left side wall is closed to close the opening on the left side wall.

According to another exemplary embodiment of the present invention, the heat shrinking machine further comprises of: a first safety cover which is rotatably connected to the left side wall of the receiving chamber and is capable of being rotatably opened and closed; and a second safety cover which is rotatably connected to the right side wall of the receiving chamber and is capable of being rotatably opened and closed. When the heating unit heats the heat shrink tube on the first support platform, the first safety cover is closed to cover the heating unit, the cable clamp and the heat shrink tube on the cable on the first support platform, and the second safety cover is opened to allow the cable to be clamped on the second support platform; When the heating unit heats the heat shrink tube on the second support platform, the second safety cover is closed to cover the heating unit, the cable clamp and the heat shrink tube on the cable on the second support platform, and the first safety cover is opened to allow the cable to be clamped on the first support platform.

In the above-mentioned exemplary embodiments according to the present invention, the motion mechanism can drive the heating device to move between different stations and switch between different orientations, so that the heating device can not only heat the heat shrink tube on the end of the cable, but also heat the heat shrink tube between two ends of the cable. Therefore, the present invention can expand the application range and working efficiency of the heat shrinking machine.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other features of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the accompanying drawings, in which:

Figure 1 shows an illustrative perspective view of a heat shrinking machine according to an exemplary embodiment of the present invention;

Figure 2 shows an illustrative perspective view of a machine body of a heat shrinking machine according to an exemplary embodiment of the present invention;

Figure 3 shows an illustrative perspective view of a heat shrinking machine according to an exemplary embodiment of the present invention, wherein the first safety cover on the first support platform is opened, and the second safety cover on the second support platform is closed;

Figure 4 shows an illustrative perspective view of a heating device of a heat shrinking machine according to an exemplary embodiment of the present invention;

Figure 5 shows an illustrative perspective view of a motion mechanism of a heat shrinking machine according to an exemplary embodiment of the present invention when viewed from one side;

Figure 6 shows an illustrative perspective view of a motion mechanism of a heat shrinking machine according to an exemplary embodiment of the present invention when viewed from the other side;

Figure 7 shows an illustrative perspective view of a slot rail of a motion mechanism according to an exemplary embodiment of the present invention;

Figure 8 shows an illustrative perspective view of ta heating device of a heat shrinking machine according to an exemplary embodiment of the present invention when viewed from one side;

Figure 9 shows an illustrative perspective view of a heating device of a heat shrinking machine according to an exemplary embodiment of the present invention when viewed from the other side;

Figure 10 shows an illustrative perspective view of a heating device of a heat shrinking machine according to an exemplary embodiment of the present invention, wherein the first beam 310 is removed;

Figure 11 shows an illustrative view of a heat shrinking machine according to an exemplary embodiment of the present invention, wherein the heating device is located on the first support platform;

Figure 12 shows an illustrative view of a heating device of a heat shrinking machine according to an exemplary embodiment of the present invention, wherein the heating device is located at the first heating station and in the first heating orientation; and

Figure 13 shows an illustrative view of a heating device of a heat shrinking machine according to an exemplary embodiment of the present invention, wherein the heating device is located at a second heating station and in a second heating orientation.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS OF THE IVENTION

Exemplary embodiments of the present disclosure will be described hereinafter in detail with reference to the attached drawings, wherein the like reference numerals refer to the like elements. The present disclosure may, however, be embodied in many different forms and should not be construed as being limited to the embodiment set forth herein; rather, these embodiments are provided so that the present disclosure will be thorough and complete, and will fully convey the concept of the disclosure to those skilled in the art.

In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the disclosed embodiments. It will be apparent, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are schematically shown in order to simplify the drawing.

According to a general concept of the present invention, there is provided a motion mechanism. The motion mechanism comprises of: a first link rod connected to a driving mechanism to be moved with it; a second link rod which is pivotally connected with the first link rod to rotate around a pivot axis relative to the first link rod; a guide pin fixed on the second link rod; and a slot rail formed with a guide slot which is sliding matched with the guide pin to guide the guide pin to move along it. When the first link rod is driven to move, the second link rod drives an operation unit connected with it to switch between different orientations, so that the driven operation unit has different orientations.

According to another general concept of the present invention, there is provided a heating device. The heating device comprises of: a heating unit for heating; and the above motion mechanism. The second link rod of the motion mechanism is fixedly connected to the heating unit to drive the heating unit to convert between different orientations, so that the heating unit has different orientations.

According to another general concept of the present invention, there is provided a heat shrinking machine. The heat shrinking machine comprises of: a machine body comprising a receiving chamber at a standby station and a support platform at a heating station; a cable clamp which is installed on the support platform to clamp a cable with heat shrinkable tube; and the above heating device which is installed on the machine body to heat the heat shrink tube on the clamped cable. The motion mechanism is used to drive the heating unit to be moved between the standby station and the heating station and to be switched between a standby orientation and a heating orientation; When the heating unit is moved to the standby station, the heating unit is located in the receiving chamber and in the standby orientation; When the heating unit is moved to the heating station, the heating unit is located on the support platform and in the heating orientation.

According to another general technical concept of the present invention, a motion mechanism is provided. The motion mechanism comprises of: a first link rod 21, which is connected to a driving mechanism and can move with it; a second link rod 22 which is pivotally connected with the first link rod 21 to rotate around a pivot axis relative to the first link rod 21 ; a guide pin 23 which is fixed on the second link rod 22; and a slot rail 24 which is formed with a guide slot 240 that is slidably matched with the guide pin 23, for guiding the guide pin 23 to move along the guide slot 240. When the first link rod 21 is driven to move, the second link rod 22 drives an operation unit connected with it to move between different stations and switch between different orientations, so that the driven operation unit has different orientations at different stations. Figure 1 shows an illustrative perspective view of a heat shrinking machine according to an exemplary embodiment of the present invention. Figure 2 shows an illustrative perspective view of the body 1 of a heat shrinking machine according to an exemplary embodiment of the present invention. Figure 3 shows an illustrative perspective view of a heat shrinking machine according to an exemplary embodiment of the present invention, wherein the first safety cover 110 on the first support platform 11 is open, and the second safety cover 120 on the second support platform 12 is closed. Figure 4 shows an illustrative perspective view of a heating device of a heat shrinking machine according to an exemplary embodiment of the present invention.

As shown in Figures 1 to 4, in the illustrated embodiment, the heat shrinking machine mainly includes a machine body 1, a plurality of cable clamps 40 and a heating device. The machine body 1 comprises a receiving chamber 13 at the standby station and a support platform 11 and 12 at the heating station. A plurality of cable clamps 40 are installed on the support platform 11 and 12 to clamp a plurality of cables with heat shrinkable tubes (not shown). The heating device is installed on the machine body 1 and is used to heat the heat shrink tube on the clamped cable to make the heat shrink tube shrink on the cable.

As shown in Figures 1 to 4, in the illustrated embodiment, the heating device mainly includes a motion mechanism 2 and a heating unit 3. The motion mechanism 2 is used to drive the heating unit 3 to move between a standby station and a heating station and to drive the heating unit 3 to switch between a standby orientation and a heating orientation.

Figure 11 shows an illustrative view of a heat shrinking machine according to an exemplary embodiment of the present invention, wherein the heating unit 3 is located on the first support platform 11; Figure 12 shows an illustrative view of the heating device of the heat shrinking machine according to an exemplary embodiment of the present invention, wherein the heating unit 3 is located at the first heating station and in the first heating orientation; Figure 13 shows an illustrative view of a heating device of a heat shrinking machine according to an exemplary embodiment of the present invention, wherein the heating unit 3 is located at a second heating station and in a second heating orientation.

As shown in Figures 1-4 to 11-13, in the illustrated embodiment, when the heating unit 3 is moved to the standby station, the heating unit 3 is located in the receiving chamber 13 and in the standby orientation. When the heating unit 3 is moved to the heating station, the heating unit 3 is located on the support platform 11 and 12 and in the heating orientation.

As shown in Figures 1-4 to 11-13, in the illustrated embodiment, the support platform 11 and 12 includes a first support platform 11 and a second support platform 12 located at the first heating station and the second heating station respectively. The first support platform 11 and the second support platform 12 are arranged side by side and are respectively located on the left and right sides of the receiving chamber 13.

As shown in Figures 1-4 to 11-13, in the illustrated embodiment, the motion mechanism 2 is used to drive the heating unit 3 to move between the standby station, the first heating station and the second heating station, and to drive the heating unit 3 to switch between the standby orientation, the first heating orientation and the second heating orientation.

As shown in Figures 1-4 to 11-13, in the illustrated embodiment, when the heating unit 3 is moved to the first heating station, the heating unit 3 is located on the first support platform 11 and in the first heating orientation.

As shown in Figures 1-4 to 11-13, in the illustrated embodiment, when the heating unit 3 is moved to the second heating station, the heating unit 3 is located on the second support platform 12 and in the second heating orientation.

Figure 5 shows an illustrative perspective view of the motion mechanism 2 of the heat shrinking machine according to an exemplary embodiment of the present invention when viewed from one side; Figure 6 shows an illustrative perspective view of the motion mechanism 2 of the heat shrinking machine according to an exemplary embodiment of the present invention when viewed from the other side; Figure 7 shows an illustrative perspective view of the slot rail 24 of the motion mechanism 2 according to an exemplary embodiment of the present invention.

As shown in Figures 1-7 to 11-13, in an exemplary embodiment of the present invention, a motion mechanism 2 is also disclosed, which mainly includes a first link rod 21, a second link rod 22, a guide pin 23 and a slot rail 24. The first link rod 21 can move in a straight line Y in the first direction. The second link rod 22 is rotationally connected with the first link rod 21 to be able to rotate about a pivot axis perpendicular to the first direction Y with respect to the first link rod 21. In the illustrated embodiment, the second link rod 22 is rotatably connected to the first link rod 21 by a pivot shaft 221. Guide pin 23 is fastened to second link rod 22. The slot rail 24 is formed with a guide slot 240 that is slidably matched with the guide pin 23, and is used to guide the guide pin 23 to move along the guide slot 240.

As shown in Figures 1-7 to 11-13, in the illustrated embodiment, when the first link rod 21 is driven to move along a straight line in the first direction Y, the second link rod 22 drives the operation unit connected to it (for example, the heating unit 3 in the illustrated embodiment) to move between different stations and switch between different orientations, so that the driven operation unit has different orientations at different stations.

As shown in Figures 1-7 to 11-13, in the illustrated embodiment, the guide slot 240 is herringbone. The guide slot 240 includes: a first slot 241 extending in the first direction Y; a second slot 242 which is on the same straight line with the first slot 241 and is separated from the first slot 241 in the first direction Y; a third slot 243 extending along a second direction X perpendicular to the first direction Y and the pivot axis; a first transition slot 244 which is located between one end of the first slot 241 and one end of the third slot 243; and a second transition slot 245, which is located between one end of the second slot 242 and one end of the third slot 243.

As shown in Figures 1-7 to 11-13, in the illustrated embodiment, when the guide pin 23 is moved to a first predetermined position in the first slot 241, the operation unit connected with the second link rod 22 is moved to the first operation station (for example, the first heating station in the illustrated embodiment) and switched to the first operation orientation (for example, the first heating orientation in the illustrated embodiment).

As shown in Figures 1-7 to 11-13, in the illustrated embodiment, when the guide pin 23 is moved to a second predetermined position in the second slot 242, the operation unit connected to the second link rod 22 is moved to the second operation station (for example, the second heating station in the illustrated embodiment) and switched to the second operation orientation (for example, the second heating orientation in the illustrated embodiment).

As shown in Figures 1-7 to 11-13, in the illustrated embodiment, when the guide pin 23 is moved to a third predetermined position in the third slot 243, the operation unit connected to the second link rod 22 is moved to the standby station and switched to the standby orientation.

As shown in Figures 1-7 to 11-13, in the illustrated embodiment, the first slot 241 and the second slot 242 extend along the first line parallel to the first direction Y, and the pivot axis intersects the first line.

As shown in Figures 1-7 to 11-13, in the illustrated embodiment, the operation unit in the standby orientation is switched to the first operation orientation after being rotated 90 degrees in one direction around the pivot axis of the second link rod 22.

As shown in Figures 1-7 to 11-13, in the illustrated embodiment, the operation unit in the standby orientation is switched to the second operation orientation after the second link rod 22 is rotated 90 degrees around the pivot axis in another direction opposite to one direction.

As shown in Figures 1-7 to 11-13, in the illustrated embodiments, the motion mechanism 2 also includes: a guide rail 212 extending along the first direction in a straight line Y; and a sliding block 211, which is slidably mounted on the guide rail 212. The sliding block 211 is fixedly connected with the first link rod 21, so that the first link rod 21 can be driven to move in the first direction Y by driving the sliding block 211.

As shown in Figures 1-7 to 11-13, in the illustrated embodiment, the motion mechanism 2 also includes a driving device, which is used to drive the sliding block 211 to move in a straight line along the guide rail 212.

As shown in Figures 1-7 to 11-13, in the illustrated embodiment, the driving device comprises: a bracket 20; a pair of pulleys 261 and 262 which are rotatably mounted on the bracket 20; a transmission belt 263 which is connected between the pair of pulleys 261 and 262; a motor 26 which is fixed on the bracket 20 and its output shaft is connected with a pulley 261 ; and a connecting piece 25, which is fixedly connected to the transmission belt 263 and the sliding block 211. In the illustrated embodiment, the guide rail 212 is fixed to the bracket 20.

As shown in Figures 1-7 to 11-13, in the illustrated embodiment, when the motor 26 rotates, the motor 26 drives the transmission belt 263 to move, and the transmission belt 263 drives the sliding block 211 to move along the guide rail 212 in a straight line.

As shown in Figures 1-7 to 11-13, in the illustrated embodiment, the motion mechanism 2 also includes a mounting plate 200. The slot rail 24, the guide rail 212 and the bracket 20 are fixed to the mounting plate 200. In the illustrated embodiment, the mounting plate 200 is fixed to the machine body 1 of the heat shrinking machine and forms the base of the heat shrinking machine.

Figure 8 shows an illustrative perspective view of the heating unit 3 of the heat shrinking machine according to an exemplary embodiment of the present invention when viewed from one side; Figure 9 shows an illustrative perspective view of the heating unit 3 of the heat shrinking machine according to an exemplary embodiment of the present invention when viewed from the other side; Figure 10 shows an illustrative perspective view of the heating unit 3 of the heat shrinking machine according to an exemplary embodiment of the present invention, in which the first beam 310 is removed.

As shown in Figures 1 to 13, in an exemplary embodiment of the present invention, a heating device is also disclosed. The heating device mainly comprises a heating unit 3 and a motion mechanism 2. The heating unit 3 is used to heat the heat shrink tube on the cable. The second link rod 22 of the motion mechanism 2 is fixedly connected to the heating unit 3, which is used to drive the heating unit 3 to move between different stations and switch between different orientations, so that the orientations of the heating unit 3 at different stations are different.

As shown in Figures 1 to 13, in the illustrated embodiment, the heating unit 3 includes a pair of heating plates 31, 32 and a base plate 33. The base plate 33 is fixedly connected to the second link rod 22 of the motion mechanism 2 and extends in a third direction Z parallel to the pivot axis of the second link rod 22. The pair of heating plates 31 and 32 are mounted on the base plate 33 and perpendicular to the third direction Z. At least one of the pair of heating plates 31 and 32 can move along the third direction Z, so that the spacing between the pair of heating plates 31 and 32 can be adjusted to adapt to the diameter of the cable.

As shown in Figures 1 to 13, in the illustrated embodiment, the heating unit 3 also includes: a guiding rail 331 extending along the third direction Z; a first sliding block 311 which is slidably mounted on the guiding rail 331; and a second sliding block 321, which is slidably mounted on the guiding rail 331. One of the pair of heating plates 31 and 32 is fixedly connected to the first sliding block 311, and the other is fixedly connected to the second sliding block 321.

As shown in Figures 1 to 13, in the illustrated embodiment, a plurality of locking holes 3e spaced in the third direction Z are formed on the base plate 33. The heating unit 3 also comprises a first cross beam 310, a first locking pin 3a, a second locking pin 3b, and a second cross beam 320. The first cross beam 310 is fixedly connected to one end of one heating plate 31 and the first sliding block 311. A first through hole 3c is formed on the first cross beam 310. The second cross beam 320 is fixedly connected to one end of the other heating plate 32 and the second sliding block 321, and a second through hole 3d is formed on the second cross beam 320. The first locking pin 3a is inserted into the first through hole 3c and the corresponding locking hole 3e to fix the one heating plate 31 in the first position. The second locking pin 3b is inserted into the second through hole 3d and the corresponding locking hole 3e to fix the other heating plate 32 in the second position.

Please note that the present invention is not limited to the illustrated embodiments. For example, in another exemplary embodiment of the present invention, the heating unit 3 can include: a first lifting device (not shown) and a second lifting device (not shown). The first lifting device is mounted on the base plate 33 and connected to the first sliding block 311 to drive the first sliding block 311 to move along the guiding rail 331. For example, the first lifting device can include: a first motor fixed to the base plate 33; and a first transmission mechanism, which is connected between the output shaft of the first motor and the first sliding block 311. The second lifting device is mounted on the base plate 33 and connected to the second sliding block 321, which is used to drive the second sliding block 321 to move along the guiding rail 331. For example, the second lifting device can include: a second motor fixed to the base plate 33; and a second transmission mechanism, which is connected between the output shaft of the second motor and the second sliding block 321.

Please note that the present invention is not limited to the illustrated embodiments, for example, in another exemplary embodiment of the present invention, the heating unit 3 may include: a driving motor and a screw rod. The drive motor is mounted on the base plate 33 and connected with the screw rod to drive the screw rod to rotate. The upper part and lower part of the screw rod are respectively formed with a first thread and a second thread. The thread directions of the first thread and the second thread are opposite and are respectively connected with the first sliding block 311 and the second sliding block 321. When the driving motor rotates, the screw rod drives the pair of heating plates 31 and 32 to move towards or away from each other to adjust the spacing between the pair of heating plates 31 and 32.

As shown in Figures 1 to 13, in the illustrated embodiment, the heating unit 3 in the standby orientation is switched to the first heating orientation after being rotated 90 degrees to the left about the pivot axis of the second link rod 22.

As shown in Figures 1 to 13, in the illustrated embodiment, the heating unit 3 in the standby orientation is switched to the second heating orientation after being rotated 90 degrees to the right about the pivot axis of the second link rod 22.

As shown in Figures 1 to 13, in the illustrated embodiment, a row of cable clamps 40 are arranged on the top surface of at least one of the front, rear and left sides of the first support platform 11. A row of cable clamps 40 are arranged on the top surface of at least one of the front, rear and right sides of the second support platform 12.

As shown in Figures 1 to 13, in the illustrated embodiment, when the heating unit 3 is moved to the first support platform 11, the cable can enter between the pair of heating plates 31 and 32 of the heating unit 3 from either side of the front, rear and left sides of the first support platform 11. In this way, the application range of the heat shrinking machine can be expanded.

As shown in Figures 1 to 13, in the illustrated embodiment, when the heating unit 3 is moved to the second support platform 12, the cable can enter between the pair of heating plates 31 and 32 of the heating unit 3 from either side of the front, rear and right sides of the second support platform 12. In this way, the application range of the heat shrinking machine can be expanded.

As shown in Figures 1 to 13, in the illustrated embodiment, openings 131 are respectively formed on the left side wall and the right side wall of the receiving chamber 13 to allow the heating unit 3 to enter and exit the receiving chamber 13. A safety door 132 for opening and closing the opening 131 is respectively installed on the left side wall and the right side wall of the receiving chamber 13.

As shown in Figures 1 to 13, in the illustrated embodiment, when the heating unit 3 heats the heat shrink tube on the first support platform 11, the safety door 132 installed on the left side wall is opened to open the opening 131 on the left side wall, and the safety door 132 installed on the right side wall is closed to close the opening 131 on the right side wall. When the heating unit 3 heats the heat shrinkable tube on the second support platform 12, the safety door 132 installed on the right side wall is opened to open the opening 131 on the right side wall, and the safety door 132 installed on the left side wall is closed to close the opening 131 on the left side wall.

As shown in Figures 1 to 13, in the illustrated embodiment, the heat shrinking machine also includes a first safety cover 110, a second safety cover 120 and a third safety cover 130. The first safety cover 110 is rotatably connected to the left side wall of the receiving chamber 13, and can be rotatably opened and closed. The second safety cover 120 is rotatably connected to the right side wall of the receiving chamber 13, and can be rotatably opened and closed.

As shown in Figures 1 to 13, in the illustrated embodiment, when the heating unit 3 heats the heat shrink tube on the first support platform 11, the first safety cover 110 is closed to cover the heating unit 3, the cable clamp 40 and the heat shrink tube on the cable on the first support platform 11, and the second safety cover 120 is opened to allow the cable to be clamped on the second support platform 12.

As shown in Figures 1 to 13, in the illustrated embodiment, when the heating unit 3 heats the heat shrink tube on the second support platform 12, the second safety cover 120 is closed to cover the heating unit 3, the cable clamp 40 and the heat shrink tube on the cable on the second support platform 12, and the first safety cover 110 is opened to allow the cable to be clamped on the first support platform 11.

As shown in Figures 1 to 13, in the illustrated embodiment, the third safety cover 130 is installed on the top opening of the receiving chamber 13 and can be opened and closed.

It should be appreciated for those skilled in this art that the above embodiments are intended to be illustrated, and not restrictive. For example, many modifications may be made to the above embodiments by those skilled in this art, and various features described in different embodiments may be freely combined with each other without conflicting in configuration or principle.

Although several exemplary embodiments have been shown and described, it would be appreciated by those skilled in the art that various changes or modifications may be made in these embodiments without departing from the principles and spirit of the disclosure, the scope of which is defined in the claims and their equivalents.

As used herein, an element recited in the singular and proceeded with the word "a" or "an" should be understood as not excluding plural of said elements or steps, unless such exclusion is explicitly stated. Furthermore, references to "one embodiment" of the present invention are not intended to be interpreted as excluding the existence of additional embodiments that also incorporate the recited features. Moreover, unless explicitly stated to the contrary, embodiments "comprising" or "having" an element or a plurality of elements having a particular property may include additional such elements not having that property.