BUTTONING MACHINE

Field of the Invention

The Invention relates to the technical field of defective product detection and specifically relates to a prong snap button defective product detector for a buttoning machine.

Background of the Invention

In the garment industry, as long as there are buttons on clothes, buttoning is a necessary process step. A kind of buttons, known as prong snap buttons, is widely used, particularly in children's garments. With reference to Fig. 5, a prong snap button comprises four parts, namely a surface claw A, a washer B, a ball C and a bottom claw D. For the surface claw A and the bottom claw D of the prong snap button, except that the surface cover of the surface claw A may have different colors, sizes or shape patterns in comparison with the bottom claw D, other structures are basically the same, outer rings of the two are circular, five claw pieces which are uniformly distributed and shaped like acute triangles are arranged on inner rings respectively, and the inner diameters have the same size; and the washer B and the ball C have annular grooves Bl , CI for five-claw riveting respectively, which are commonly known as Lin mouths.

The buttoning (also known as button riveting) process is the process of operating the buttoning machine, and riveting the surface claw A of the button with the washer B or riveting the ball C of the button with the bottom claw D. In the process, if claw tips A l or D l of the claw pieces of the surface claw A or the bottom claw D are in the range of the annular groove B l or CI of the washer B or the bail C, the process belongs to normal riveting; with the reference to Fig. 6, the phenomena of exposing claw/claws can be avoided; and however, in the buttoning process, many unqualified situations often occur, and one of the most dangerous phenomena is called as "exposing the claw/claws". Due to failure of buttoning equipment, dimensional deviation of the button itself or improper operation and other reasons, one or more claw tips of the five claws in the surface claw A or the bottom claw D can not be normally riveted into the groove of the washer B or the ball C, leading to "exposing the claw/claws", namely the claw tips A l or D l of the claw pieces of the surface claw A or the bottom claw D exceed the range of the annular groove Bl or C I of the washer B or the ball C.

At present, the phenomena "exposing the claw/claws" mainly include the following situations:

With the reference to Fig. 7, when the claw tip Al or Dl of a certain claw piece of the surface claw A or the bottom claw D exceeds the outer ring of the annular groove B l or C I of the washer B or the ball C, it is most possible to expose the claw on the surface of the washer, namely the upside of a buttoned garment.

With the reference to Fig. 8, when the claw tip A l or D l of a certain claw piece of the surface claw A or the bottom claw D exceeds the annular groove Bl or C I of the washer B or the ball C and is more serious than the first situation, the phenomenon of exposing the claw should occur on the five-claw surface, namely the underside of the buttoned garment.

With the reference to Fig. 9, when the claw tip Al or D l of a certain claw piece of the surface claw A or the bottom claw D is slightly larger than the outer ring of the annular groove Bl or CI of the washer B or the ball C and the claw tip Al or Dl is curved, at this time, the exposed claw may first penetrate the upside and then penetrate the underside.

With the reference to Fig. 10, when the claw tip Al or Dl of a certain claw piece of the surface claw A or the bottom claw D is smaller than the inner ring of the annular groove B l or C I of the washer B or the ball C and the tip is curved downwards, the claw will be exposed in the middle of the claw piece during binding, namely in the claw ring on the underside of the buttoned garment.

If the claw is exposed in the buttoning process, it is very dangerous. Firstly, the claw tips of the five claws on the surface claw A or the bottom claw D are very sharp and can cause harm to human bodies (in particular to children); and secondly, due to the lack of one or more claw pieces, the riveting force of the five claws is weakened, so that the button is easy to fall off. Thus, in the garment industry, "exposing the claw/claws" is a problem which must be avoided. However, at present, the inspection of the phenomena of exposing the claw/claws in the garment industry relies on the judgment by manpower and naked eyes, so that the randomness is great, the scientific nature is not strong and the shipment of ready-made garments with the phenomena of exposing the claw/claws can not be effectively avoided.

At present, the similar products on the market have the following characteristics and defects:

(1) The accuracy in detection of the exposed claw/claws is not high, and the operational stability is poor;

Most of exposed claw detection devices in other companies on the market adopt a metal electrification contact principle for detection. The products have some limitations and can not perform comprehensive detection, thereby resulting in unstable detection accuracy, errors in operational reliability, frequent false alarm actions and other issues;

(2) Potential safety hazards;

a. Most of the devices for detecting the exposed claws on the market use the commercial power 220V and do not use national safe voltage of below 36V. In moist and rainy and snowy weather, the occurrence of accidents capable of causing injuries to people by electric leakage will be caused under special circumstances.

b. Devices for preventing hurting hands are not mounted, and the accidents capable of causing the injuries to the people are easy to cause in the process of operating the machines.

(3) Difficulties in mounting or debugging;

The exposed claw devices have complex and numerous components and are difficult to mount.

Summary of the Invention Against the above problems, the invention provides a prong snap button defective product detector for a buttoning machine, which is used for detecting defective products by an induction coil of an upper detection and induction support, an auxiliary induction coil of a lower auxiliary detection support and a sensor component, overcomes the defects in metal electrification detection adopted by other companies on the market, improves the operational stability of the machine, further improves the detection sensitivity of the defective products, improves the accuracy, can comprehensively detect the defective products, is easy to mount and simple, has a default adjustment position, is convenient to debug and can effectively solve the problems in the background art.

In order to achieve the object, the invention provides the following technical scheme: a prong snap button defective product detector for a buttoning machine is characterized in that the detector comprises an upper detection and induction support, a lower auxiliary detection support, a sensor component, a programmable controller, an induction module, a counter and a foot pedal switch;

the upper detection and induction support is shaped as a trapezoid and processed by cutting by a mold steel waip, an induction coil is arranged at the center of the upper detection and induction support, an insulation layer is arranged on the surface of the upper detection and induction support, the wiring part of the upper detection and induction support is connected with the special induction module and connected with a signal input/output port of the programmable controller,

the lower auxiliary detection support is shaped as n and processed by cutting by the mold steel warp, and an auxiliary induction coil is arranged at the center of the lower auxiliary detection support;

a housing of the sensor component adopts a metal housing, a power input wire is connected with an auxiliary power port of the programmable controller, the signal input end of the sensor component is connected with a signal input/output port of the programmable controller, and the metal housing of the sensor component is connected with the signal input/output port of the programmable controller through a wire; the commercial power input point of the programmable controller is connected with commercial power AC220V, the +24V end of the counter is connected with the auxiliary +24V end of the programmable controller, and the -24V end of the counter is connected with the signal output point port of the programmable controller; and the foot pedal switch is used for connecting with the commercial power AC220V. As a preferred technical scheme of the invention, one end of the sensor component is connected with a lower button mold of the buttoning machine through a cylindrical insulating plastic body, and a plug is arranged at the other end.

As a preferred technical scheme of the invention, a spring is mounted between the sensor component and the cylindrical insulating plastic body.

Compared with the prior art, the invention has the following beneficial effects:

(1) the prong snap button defective product detector for the buttoning machine disclosed by the invention is used for detecting defective products by the induction coil of the upper detection and induction support, the auxiliary induction coil of the lower auxiliary detection support and the sensor component, overcomes the defects in metal electrification detection adopted by other companies on the market, improves the operational stability of the machine, further improves the detection sensitivity of the defective products, improves the accuracy, can comprehensively detect the defective products, is easy to mount and simple, has a default adjustment position and is convenient to debug;

(2) by using the programmable controller to control the prong snap button defective product detection device, the safe voltage is adopted, an electric leakage protection device is mounted, the anti -interference ability is strong, and the use is convenient;

(3) the defective product counter is mounted to facilitate the statistics of the number of the defective products.

Brief Description of the Drawings

Fig. 1 is a schematic diagram of the overall structure of the invention;

Fig. 2 is a schematic diagram of the structure of an upper detection and induction support of the invention; Fig, 3 is a schematic diagram of the structure of a lower auxiliary detection support of the invention;

Fig. 4 is a schematic diagram of the connection structure of a sensor component of the invention;

Fig. 5-1 ig. 10 are schematic diagrams of phenomena of "exposing claw/claws" in the background of the invention;

Fig. 11 is a mounting schematic diagram of the invention on a buttoning machine; In the figures:

1 represents upper detection and induction support; 2 represents lower auxiliary detection support; 3 represents sensor component; 4 represents programmable controller; 5 represents induction module; 6 represents counter; 7 represents foot pedal switch; 8 represents induction coil; 9 represents insulation layer; 10 represents auxiliary induction coil; 11 represents cylindrical insulating plastic body; 12 represents lower button mold; 13 represents plug; 14 represents spring.

Detailed Description of the Embodiments

The technical schemes in the embodiments of the invention will be clearly and completely described below in combination with the accompanying drawings of the invention. Obviously, the described embodiments are only one part of the embodiments of the invention, but not all of the embodiments. Based on the embodiments of the invention, all the other embodiments obtained by those of ordinary skill in the art under the premise of not doing creative work belong to the scope of protection of the invention.

Embodiments

With the reference of Fig. 1 and Fig. 1 1 , the invention provides a technical scheme: a prong snap button defective product detector for a buttoning machine comprises an upper detection and induction support 1 , a lower auxiliary detection support 2, a sensor component 3, a programmable controller 4, an induction module 5, a counter 6 and a foot pedal switch 7; as shown in Fig. 2, the upper detection and induction support 1 is shaped as a trapezoid and processed by cutting by a mold steel warp, the upper detection and induction support 1 is further subjected to heat treatment to ensure that the hardness is sufficient and the upper detection and induction support 1 can withstand the continuous impact during every buttoning without deformation, an induction coil 8 is arranged at the center, the size of the induction coil 8 corresponds to the size of the outer diameter of a prong snap button of the buttoning machine to ensure that a claw piece of an exposed claw can be in contact with the induction coil for the exposed claw, an insulation layer 9 is arranged on the surface of the upper detection and induction support 1 , fixed by a metal screw and arranged on a clamp of an upper mold of the buttoning machine, and the wiring part of the upper detection and induction support 1 is connected with a special induction module 5 and connected with a signal input/output port of the programmable controller 4;

as shown in Fig. 3, the lower auxiliary detection support 2 is shaped as n and processed by cutting by the mold steel warp to ensure the precision of the lower auxiliary detection support 2, heat treatment is further performed to ensure that the hardness is sufficient and the lower auxiliary detection support 2 can withstand the continuous impact during every buttoning without deformation, an auxiliary induction coil 10 is arranged at the center of the lower auxiliary detection support 2, the size of the auxiliaiy induction coil 10 corresponds to the size of the outer diameter of a lower mold of the buttoning machine to ensure that the claw piece of the exposed claw can deform smoothly to facilitate the detection of the claw piece by the upper detection and induction support 1 , and the lower auxiliary detection support 2 does not need a connecting wire, is fixed by a metal screw and is arranged on the clamp of the lower mold of the buttoning machine.

As shown in Fig. 4, a housing of the sensor component 3 adopts a metal housing, one end is connected with a lower button mold 12 of the buttoning machine through a cylindrical insulating plastic body 11 , a plug 1 3 is arranged at the other end, a spring 14 is mounted between the sensor component 3 and the cylindrical insulating plastic body 11 , a power input wire of the sensor component 3 is connected with an auxiliary power port of the programmable controller 4, the signal input end of the sensor component 3 is connected with a signal input/output port of the programmable controller 4, and the metal housing of the sensor component 3 is connected with the signal input/output port of the programmable controller 4 through a wire so as to improve the detection accuracy against the button with the internal exposed claw and further achieve the double-detection effect, the size of the sensor component 3 corresponds to the size of the inner diameter of the lower button mold 12 in an inter-region formed by five claws of the sensor component 3 arranged on the lower button mold of the buttoning machine to ensure that the buttons without the exposed claws can pass smoothly and not be induced by the sensor component 3, and meanwhile, the sensor component 3 can induce the internal exposed claw against the claw piece of the exposed claw.

The commercial power input point of the programmable controller 4 is connected with commercial power AC220V, after the commercial power is connected, the programmable controller 4 starts to work, the +24V end of the counter 6 is connected with the auxiliary +24V end of the programmable controller 4, and the -24V end of the counter 6 is connected with the signal output point port of the programmable controller 4 and mounted in a power box of the buttoning machine, and the total number of the buttons with the problems, namely the internal exposed claws and external exposed claws, is counted by the counter 6; and the foot pedal switch 7 is used for connecting with the commercial power AC220V.

As shown in Fig. 11 , specifically, a specific application example of the invention is as follows:

1. the upper detection and induction support 1 and the lower auxiliary detection support 2 are arranged on the buttoning machine;

2. the sensor component 3 and components are arranged on the lower mold of the buttoning machine;

3. the commercial power is connected with the programmable controller 4;

4. the sensor component 3 is connected with the input signal point of the programmable controller 4; 5. when the phenomenon of exposing the claw/claws occurs, the claw tips of the exposed claws and the corresponding detection support trigger a signal, and the signal is delivered to the programmable controller 4;

6. after scanning and analysis, the signal is output to a motor of the buttoning machine, the signal of the motor of the buttoning machine is cut out, the work of the buttoning machine is simultaneously stopped, an alarm signal is emitted, and an operation indicating light of the buttoning machine is turned off;

7. after the alarm signal is relieved, the operation indicating light of the buttoning machine is clicked to turn on the indicating light, and the buttoning machine returns to normal work;

8. when failure of the upper detection and induction support 1, the sensor component 3 and the components occurs, the foot pedal switch 7 of the buttoning machine is operated, after the programmable controller 4 receives a failure signal, the work of the buttoning machine is stopped, at the same time, the operation indicating light of the buttoning machine is turned off, and the alarm signal is emitted;

9. after the removal of failure reasons, the operation is performed to relieve the alarm signal according to the prompt in the above "7" step.

The above embodiments are only the preferred embodiments of the invention and are not used for limiting the invention. Any modifications, equivalent substitutions, improvements and the like made within the spirit and the principle of the invention should be contained in the scope of protection of the invention.