Technical Field

The invention is related to a yarn winding machine developed for winding a core-less shuttleless lower yarn without bobbin to be used in the sewing and embroidery machines.

The invention is particularly related to a core-less yarn winding machine that provides the lower yarn to gain form without winding to a bobbin.

State of the Art

Obtaining products in the textile sector and creating decorative and functional structures in the obtained products are provided by means of the sewing and embroidery machines. The sewing and embroidery machines basically make process by two yarn groups namely the lower yarn and the upper yarn. Said two yarn groups are moved underneath and across the fabric and/or fabrics and they provide the fabrics to be combined or to be rich visually by their interconnection.

The lower yarns used in the sewing and embroidery machines are basically used as being wound on the bobbin. Winding the lower yarns on the bobbin embodies many disadvantages both during usage and winding. Bobbin usage brings extra bobbin costs. Quality problems occur due to the faulty winding process on the bobbin or the failure of the physical structure of the bobbin. Moreover, additional winding apparatuses are used for winding to the bobbin and these apparatuses bring extra costs. In addition to this, a loss in efficiency occurs because all these bobbin winding processes require additional process steps. In addition to this, the yarns can be wound on the bobbins produced from metal or different material with a determined quantity, since this quantity is low, it increases the number of stops and replacement time in the sewing and embroidery machines due to lower yarn’s ending. Said situation causes a serious decrease in the efficiency. As a result, due to the abovementioned disadvantages and the insufficiency of the current solutions in terms of the subject matter, it is required to make a development in the relevant technical field.

Brief Description of Invention

The present invention is related to a yarn winding machine in order to provide a core-less- shuttleless lower yarn without bobbin that fulfills the abovementioned requirements, eliminates all disadvantages and brings some additional advantages.

The prior aim of the invention is to provide a yarn winding machine that enables a lower yarn bobbin formed without using shuttle.

The aim of the invention is to provide a yarn winding machine that eliminates the disadvantages caused by the bobbin usage.

Another aim of the invention is to provide a yarn winding machine that enables winding yarn with higher quantities.

Another aim of the invention is to provide a yarn winding machine that performs the yarn production type that decreases the failures due to the lower yarn in the sewing and embroidery machines.

Another aim of the invention is to provide a yarn winding machine that enables a yarn with a high quantity as a result of the yarn structure that is provided by removing the volume of the slot of the bobbin and volume of its bearing.

Another aim of the invention is to provide a yarn winding machine that allows using the endless filament yarn as the lower yarn.

A similar aim of the invention is to provide a yarn winding machine that enables to obtain an increase in the quantity and strength together with the usage of the endless fiber yarn.

The invention aims to provide a yarn winding machine with a decrease cleaning period and with minimized failures. The invention also aims to provide a yarn winding machine that enables to increase the efficiency in the sewing and embroidery machines by decreasing the lower yarn change.

The invention also aims to provide a yarn winding machine that enables to decrease the cost by eliminating the yarn transfer period from the big winded package to the bobbin.

In order to fulfill the abovementioned aims, the invention is a yarn winding machine that comprises a winding group having a winding shaft into which the yarn obtained from the bobbin by being taken by means of a yarn feeding group is wound in a manner such that it winds around. Therefore said yarn winding machine is characterized in comprising the following; a winding group body that moves the winding shaft backward after completing the forward and backward winding process of the winding shaft in order to perform the yarn winding on said winding shaft, a winding control center having a diameter-density control wheel that compresses the wound yarn underneath together with the start of the winding process, a primary forming lateral surface and a secondary forming lateral surface in a manner that creates the required winding form and a press group that fastens the wound yarn form and performs the targeted dimensions.

In order to fulfill the aims of the invention, it comprises a traverse group that is associated with the winding group in order to provide the yarn whose winding is performed in the winding group, to be wound on the winding shaft according to a predetermined pattern in a homogenous distributed manner and with a required width.

In order to fulfill the aims of the invention, it comprises a winding starter group that is associated with a winding group in order to start the first winding by holding the yarn.

In order to fulfill the aims of the invention, said winding group comprises a group motion shafts that directs the winding group forward-backward and a body support that limits the motion of the winding group body.

In order to fulfill the aims of the invention, it comprises a shaft holder clamp in order to provide its association with the motor shaft for returning to said winding shaft.

In order to fulfill the aims of the invention, said traverse group comprises a motion transfer shaft that is driven by a traverse group motor. In order to fulfill the aims of the invention, it comprises an intermediate motion transfer wheel provided in the winding control, to which said motion transfer shaft transfers motion in order to transfer the motion of said primary forming lateral surface to the secondary forming lateral surface.

In order to fulfill the aims of the invention, said winding starter group comprises a fine clearance adjustment wheel that limits the motion of the winding group, and a wheel body whereon said fine clearance adjustment wheel is seated in order to be protected.

In order to fulfill the aims of the invention, it comprises a left idler group body that moves backwardly during the discharge of the wound yarn from the winding shaft by acting as a bearing to said secondary forming lateral surface.

In order to fulfill the aims of the invention, it comprises left idler piston shafts that provide the movement of said left idler group body.

In order to fulfill the aims of the invention, it comprises a hook that catches the yarn end for a new winding following the completion of the winding and a hook pipe that makes a forward-backward motion on the hook for opening and closing said hook.

In order to fulfill the aims of the invention, it comprises a hook fastening clamp in order to fasten said hook and a hook fastening clamp body in order to bear said hook fastening clamp.

In order to fulfill the aims of the invention, it comprises a hook piston pin that moves said hook pipe forwardly-backwardly.

In order to fulfill the aims of the invention, it comprises a wheel handle that is mounted on a motion transfer piston and a wheel in order to provide said intermediate motion transfer wheel to make pressure downwardly.

In order to fulfill the aims of the invention, said winding control center comprises a gear that is driven by said wheel handle and a winding control piston section that includes a gear shaft whereupon said gear transfers motion. In order to fulfill the aims of the invention, it comprises a drive shaft that provides the motion of said diameter-density control wheel and a handle that it is mounted.

In order to fulfill the abovementioned aims, the invention also is a yarn winding method related to a yarn winding machine that includes a winding group having a winding shaft upon which a yarn obtained from a bobbin is wound around by being received via a yarn feeding group. Therefore, said yarn winding method comprises the following process steps:

a) Winding the yarn around the winding shaft over the yarn bobbin with yarn feeding group by means of passing from the yarn traverse gear box,

b) Entering the working parameters from the automation and control group, c) Winding the yarn around the winding shaft by means of the motion of the winding group body,

d) Compressing the yarn underneath by means of the diameter-density control wheel, e) Withdrawing the winding start piston group when the required winding diameter is reached,

f) Carrying the bobbin whose winding is completed by means of the handle, cutting its end with scissors,

g) Directing the bobbin to the press group in order to be formed during a predetermined time and temperature

In order to fulfill the aims of the invention, the cut free end of the yarn is hold by a hook and inserted into the hook pipe.

The structural and characteristic features and all advantages of the invention will be clarified by the following drawings and with reference to these drawings and therefore the evaluation shall be made by taking these figures and the detailed description into consideration.

Brief Description of Figures

Figure 1 is a general view of the yarn winding machine.

Figure 2 is a general view of the yarn winding machine body.

Figure 3 is a general view of the yarn winding machine automation and control group. Figure 4 is a general view of the yarn winding machine electro-pneumatic group.

Figure 5 is a detailed view of the yarn winding machine winding group.

Figure 6 is a detailed view of the yarn winding machine traverse group.

Figure 7 is a detailed view of the yarn winding machine winding starter group.

Figure 8 is a detailed view of the yarn winding machine winding control center.

Figure 9 is a detailed view of the yarn winding machine yarn transfer group.

Figure 10 is a sectional view of the yarn winding machine piston group and press group.

It is not necessary to scale the drawings and unnecessary details for understanding the present invention may be omitted. Apart from this, elements that are at least substantially identical or at least with substantially identical functions are shown with the same reference number.

Description of the References

10 Yarn Winding Machine

1 1 Machine Body

12 Automation and Control Group

13 Electro-Pneumatic Group

14 Yarn Feeding Group

20 Winding Group

21 Winding Group Body

21 1 Body Support

212 Bushing

22 Group Motion Shaft

221 Shaft Cover

222 Shaft Centering Piston

23 Winding Shaft

231 Shaft Holder Clamp 24 Primary Forming Lateral Surface

241 Right Idler Rotation Group

25 Rotation Motor

Traverse Group

31 Traverse Group Body

32 Traverse Group Motor

321 Motion Transfer Element

33 Motion Transfer Shaft

331 Bedding Covers

332 Bedding Part

34 Travers Motor Bearing

341 Motor Motion Shaft

342 Motor Motion Piston Pin

343 Piston Seal

344 Piston Cover

345 Linear Motion Limiting Part Winding Starter Group

41 Winding Starter Group Body

41 1 Piston Group Bearing Shafts

42 Winding Start Piston Group

43 Left Idler Group Body

431 Left Idler Piston Pin

432 Piston Pin Front Cover

433 Piston Pin Rear Cover

44 Hook Group Body

441 Hook Group Piston Pin

442 Hook Group Front Cover

443 Hook Group Rear Cover

444 Hook Piston Pin

445 Hook Piston Pin Covers

446 Hook Fastening Clamp Body

447 Hook Fastening Clamp

448 Hook Pipe

449 Hook

45 Scissors

451 Scissors Fastening Body 452 Scissors Piston Bedding Section

46 Fine Clearance Adjustment Wheel

461 Wheel Body

47 Secondary Forming Lateral Surface 50 Winding Control Center

51 Winding Center Main Body

52 Intermediate Motion Transfer Wheel

521 Motion Transfer Piston

522 Piston Fastening Part

523 Wheel Handle

524 Wheel Fastening Part

53 Yarn Traverse Gear Box

531 Motion Transfer Group

54 Winding Control Piston Section

541 Piston Section Piston Cover

542 Piston Section Piston Seal

543 Gear

544 Gear Shaft

545 Gear Shaft Bearing

55 Diameter-density Control Wheel

551 Wheel Bearing

552 Handle

553 Drive Shaft

554 Drive Shaft Cover

56 Encoder Fastening Body

561 Encoder Fastening Body Cover

562 Encoder Round Gear

60 Yarn Transfer Group

61 Group Drive Piston

62 Mounting Part

63 Rail

64 L Bearing

641 Bearing Motion Gear

642 Gear Support Shaft

643 Bearing Motion Motor

65 Bobbin Handle 651 Handle Fastening Part

652 Handle Piston

653 Handle Motor

70 Piston Group

71 Compression Piece

80 Press Group

81 Press Body

82 Discharge Part

83 Discharge Piston

84 Resistor

Detailed Description of Invention

In this detailed description the yarn winding machine (10) of the invention is described in order to clarify the subject matter and in a manner without any limiting effect.

The yarn winding machine (10) with reference to the Figure 1 wherein its general view is given, essentially includes a machine body (1 1 ), basically consists of a winding group (20), a traverse group (30), a winding starter group (40), a winding control center (50), a yarn transfer group (60), a piston group (70), a press group (80), an automation and control group (12), an electro-pneumatic group (13) and a yarn feeding group (14) that are provided on a machine body (1 1 ). The machine body (1 1 ) in Figure 2 wherein its general view is given has the role of a structure whereon all equipment and groups are located. Said yarn feeding group (14) realizes yarn transfer in the yarn winding machine (10). Said winding group (20) makes winding process without a pulley at its center by the yarn that it takes from the yarn feeding group (14). Said traverse group (30) is the section that has the role of forming a pattern during winding of the yarn and preventing the yarn to be wound to the same region continuously and winding the yarn with a required pulley width. Said winding starter group (40) starts the first winding and enables to form the yarn end exiting from the center by holding the end of the yarn that exits from the yarn feeding group (14). Said winding control center (50) functions for the measurement and control of the winding diameter in terms of the yarn that was wound and also acts as a bearing for the winding starter group (40) elements. Said yarn transfer group (60) has the role of transferring the yarn whose winding is completed to the press group (80). The press group (80) is the group that gives form to the wound yarn. The press group (80) is driven by means of said piston groups (70) that are located successively. Said automation and control group (12) comprises a main screen wherein all adjustment parameters and set values required for the winding and pressing processes are entered. The automation and control group (12) in the Figure 3 wherein its general view is given is associated with said electro-pneumatic group (13). The electro-pneumatic group (13) in the Figure 4 wherein its general view is given provides the electronic control of all equipment in the yarn winding machine (10) and the motion of the pistons.

With reference to the detail view given in the Figure 5, the winding group (20) comprises; a winding group body (21 ) that embodies the winding group (20) equipment, the group motion shafts (22) on which the winding group body (21 ) moves during linear motion, the winding shaft (23) whereon the yarn taken from the yarn feeding group (14) is wound, the primary forming lateral surface (24) that creates the winding form provided at the continuation of said winding shaft (23) and a rotation motor (25) in order to rotate the winding shaft (23) and said primary forming lateral surface (24). The motion of said rotation motor (25) is transferred to the primary forming lateral surface (24) is performed through a right idler rotation group (241 ). The winding group body (21 ) comprises a body support (21 1 ) that limits the linear motion of the winding group (20) and a bushing (212) provided on the group motion shaft (22) that determines the linear motion limit between said body support (21 1 ) and the winding group body (21 ). The body support (21 1 ) is mounted on the machine body (1 1 ) and at the same time it acts as a bearing to the rotation motor (25). The group motion shaft (22) comprises; shaft covers (221 ) that are provided on two ends outside the winding body group (21 ), prevents air leakage of the piston wherein group motion shaft (22) passes through and a shaft centering piston (222) that is provided in the middle of the group motion shafts (22), pushes the winding group body (21 ) towards the body support (21 1 ). The winding shaft (23) also comprises a shaft holder clamp (231 ) that integrates the winding shaft (23) and rotation motor (25) shaft.

With reference to the detail view given in Figure 6, the traverse group (30) comprises; a traverse group body (31 ), a traverse group motor (32) that gives motion to the traverse group (30), a motion transfer shaft (33), a travers motor bearing (34) that moves the traverse group motor (32) linearly and at the same time that acts as bearing to the motor. The traverse group motor (32) is associated with a motion transfer element (321 ) and said motion transfer element (321 ) takes motion from the motor (32) and transfers this motion to the motion transfer shaft (33). The motion transfer shaft (33) comprises; a bedding part (332) and bedding covers (331 ) that are provided on two sides of the bedding part (332). The traverse motor bearing (34) comprises; motor motion shafts (341 ) that associates the traverse group motor (32) with the traverse group body (31 ) and directs them linearly, a motor motion piston pin (342) that provides linear motion to the traverse group motor (32), a piston seal (343), piston covers (344) that are provided on two ends of the motor motion piston pin (342) and a linear motion limiting part (345) that limits the linear motion of the traverse group motor (32).

With reference to the detail view given in Figure 7, the winding starter group (40) comprises; a winding starter group body (41 ) that has the quality of a carrier body, a winding start piston group (42), a left idler group body (43) that returns during the discharge of the wound yarn, a hook group body (44), a scissors (45) that cuts the end of the yarn when the winding is completed and is driven by a standard piston, a fine clearance adjustment wheel (46) that limits the motion of the winding group (20) and a secondary forming lateral surface (47) that enables the winding form. Said winding starter group body (41 ) comprises the piston group bearing shafts (41 1 ) that provides the linear motion of the winding start piston group (42) manually. The left idler group body (43) comprises; left idler piston shafts (431 ) that move the left idler group body (43) and act as a bearing to the hook group body (44), a piston front cover (432) and a piston rear cover (433) in order to provide tightness of said left idler piston shafts (431 ). The hook group body (44) comprises; the hook group piston shafts (441 ) that moves the hook group body (44) by means of the piston motion in the winding start piston group (42), the hook group front cover (442) and the hook group rear cover (443) that provides tightness of the hook group body (44) and the hook group piston shafts (441 ), the hook piston pin (444) that receives drive from the hook group piston pin (441 ), the hook piston pin covers (445) that provides tightness of said hook piston pin (444), the hook fastening clamp body (446), the hook fastening clamp (447), the hook pipe (448) and a hook (449). Said hook pipe (448) is driven by the piston pin and the hook (449) is included in the hook pipe (448). The hook pipe (448) is an element that has forward-backward motion and the hook (449) performs opening and closing in the hook pipe (448). The opening and closing are realized in a manner that it is closed when the hook pipe (448) covers the hook (449) end and it is opened when the hook pipe (448) is drawn back. The hook (449) catches the yarn and the hook (449) fastens it by the hook fastening clamp (447). The hook fastening clamp (447) is seated in said hook fastening clamp body (446). Said scissors (45) comprises; a scissors fastening body (451 ) that connects the scissors (45) with the winding starter group body and a scissors piston bedding section (452) on which the scissors (45) seats. Said fine clearance adjustment wheel (46) comprises a wheel body (461 ) whereon the wheel is mounted in order to protect the wheel from the external effects. With reference to the Figure 8 wherein the detail view is given, the winding control center (50) comprises; a winding center main body (51 ) that acts as a bearing to the winding starter group (40) elements and carries the relevant winding control center elements (50) on itself, an intermediate motion transfer wheel (52) that transfer the motion from the primary forming lateral surface (24) to the secondary forming lateral surface (47), a yarn traverse gear box (53) with a needle from that travels the yarn on the winding shaft (23) which is wound, the winding control piston section (54), a diameter-density control wheel (55) that enables to touch the yarn underneath during the winding of the yarn and an encoder fastening body (56) whereon the encoder is located. Said intermediate motion transfer wheel (52) comprises; a motion transfer piston (521 ), a piston fastening part (522) which is connected with said motion transfer piston (521 ), a wheel handle (523) to which the motion transfer wheel (52) is mounted and a wheel fastening part (524) that connects said wheel handle (523) with the winding center main body (51 ). The motion transfer piston (521 ) provides to press the wheel downwardly. In spite of this, when the diameter of the wound yarn reaches to a determined winding diameter then by deactivating the motion transfer piston (521 ) the intermediate motion transfer wheel (52) is enabled to be lifted up. Said yarn traverse gear box (53) is associated with a motion transfer group (531 ) that transfers the motion received from the motion transfer shaft (33) to the yarn traverse gear box (53). The winding control piston section (54) comprises; the piston section piston cover (541 ), the piston section piston seal (542), a gear (543), a gear shaft (544) and a gear shaft bearing (545). Said diameter-density control wheel (55) comprises; a wheel bearing (551 ), a handle (552) that is associated with said control wheel (55) and moves by means of the motion of the control wheel (55), a drive shaft (553) that transfers the motion which it receives from the control wheel (55) to said gear (543) and a drive shaft cover (554). Said encoder fastening body (56) comprises; an encoder fastening body cover (561 ) and an encoder round gear (562) that transfers the linear motion which it receives from said drive shaft (554) to the encoder.

The winding control piston section (54) basically forms a section of the winding center main body (51 ). During the winding process, the diameter-density control wheel (55) moves upwardly and touches underneath the yarn that is started to be wound on the winding shaft (23). When the diameter of the winding increases, the diameter-density control wheel (55) moves downwardly with the applied air pressure and at this stage the handle (553) rotates. At the same time in order not to move the control wheel (55) in an idle manner easily by the air pressure in the winding control piston section (54), the gear (543) encounters opposite strength by means of the gear shaft (544). Therefore, it is provided to descend the diameter-density control wheel (55) that makes pressure underneath the wound yarn, by making a predetermined pressure when the diameter of winding increases. Thus, the winding density of the yarn can be adjusted.

With reference to the Figure 9 wherein the detail view is given, the yarn transfer group

(60) consists of; a group drive piston (61 ), a mounting part (62) to which yarn transfer group (60) elements are in connection, a rail (63) that is in connection in the machine body (1 1 ) on which yarn transfer group (60) moves, an L bearing (64) and a bobbin handle (65) that holds the bobbin whose winding is completed. Said group drive piston

(61 ) provides the forward-backward motion towards the press groups (80) of all yarn transfer group (60) elements except said rail (63). There are; a bearing motion gear (641 ), a gear support shaft (642) and a bearing motion motor (643) on said L bearing (64). Said bobbin handle (65) comprises; a handle fastening part (651 ) that is provided within the L bearing (64), a handle piston (652) that opens and closes the bobbin handle (65) and a handle motor (653). Said handle fastening part (651 ) is moved upwardly by means of said handle motor (653) at the same time it is rotated by means of the bearing motion motor (643) after the bobbin is hold.

With reference to the Figure 10 wherein the sectional view is given, the piston group (70) and the press group (80) is in an associated structure. The piston group (70) comprises a compression piece (71 ) that is provided on its end. The press group (80) comprises; a press body (81 ), a discharge part (82) that pushes the bobbin to the outward direction, a discharge piston (83) that pusher said press body (81 ) to outward direction and a resistor (84) that provides the required heat for heating the bobbins. Said compression piece (71 ) compresses the bobbin between the discharge part (82) and itself by the force that it takes form the piston group (70). It is provided to give form to the yarn whose winding is completed by the effect of this obtained compression and the heat.

In order to realize the core-less bobbin winding process, primarily the lubricated yarn that is wound around a big bobbin shall be wound around the winding shaft (23). This process is performed by locating the bobbin on the machine body (1 1 ), by including the yarn to the system over the yarn feeding group (14) manually by passing through the yarn traverse gear box (55). Following the manual yarn feed, all operation parameters associated with automation and control group (12) to yarn winding machine (10) are entered and the system is waited to fit the regime. Following the operation of the machine, the yarn manually wound around the winding shaft (23), is started to be wound on the winding group (20) by means of the winding shaft (23). Together with the start of the winding process, the diameter-density control wheel (55) starts to compress the wound yarn from the underneath. Together with the increase in the winding diameter, the diameter-density control wheel (55) starts to move in a downward direction. When the winding process reaches to the value of the entered machine parameters, the winding is completed, and the winding start piston group (42) comes back and it provides the left idler group body (43) and secondary forming lateral surface (47) come back. Then the bobbin handle (65) holds the bobbin by going upwards. Following this, the winding group body (21 ) moves backwardly and provides the winding shaft (23) to leave the wound bobbin center. The bobbin that is hold by the bobbin handle (65) is taken downward and the yarn end is cut by means of the scissors (45) within the winding starter group (40). The bobbin whose end is free is transferred to the press group (80) by means of the motion of the yarn transfer group (60) on the rail (63). During this transfer process, the cut free end of the yarn is hold by the hook (449) and is inserted into the hook pipe (448). Then the winding group body (21 ) moves forwardly and it enables the winding shaft (23) again in the winding position. Together with this, the diameter-density control wheel (55) is again moved to the winding position with the winding control piston group (54) and the winding is started again for the bobbin winding with the continuation of the same yarn. The bobbin left to the press group (80) puts the bobbin into the pattern within the press group (80) when the piston group (70) pushes the compression piece (71 ) with its forward direction motion. At the end of the determined time, the compressed bobbin that rests within the press group (80) during a predetermined time and heat is pushed out of the press group (80) by means of the discharge part (82) and the process is thus terminated.