A device for making clothing buttons

Abstract

The present application relates to the technical field of button sewing machine, and discloses a clothing button sewing device, which comprises a workbench, a punching table, a punching head and a conveying structure, the conveying structure comprises a material conveying mechanism and a material storage and falling mechanism, the material conveying mechanism comprises a fixed table provided with a punching through slot, a feeding disc concentrically rotating above the fixed table and provided with a plurality of positioning through slots, the positioning through slots and the fixed table below form a conveying position for containing one clothing button, an annular air bag is arranged on the inner wall of the positioning through slot, inflation or contraction of the annular air bag is controlled by a gas charging and discharging mechanism, the gas charging and discharging mechanism comprises a gas storage groove arranged on the feeding disc and communicated with the annular air bag, a piston arranged movably in the gas storage groove and an extrusion piece arranged on the fixed table and capable of extruding the piston to make the annular air bag inflate, a first elastic reset piece is arranged between the piston and the gas storage groove, the clothing button sewing device completes center positioning and clamping of the clothing button while rotating and feeding the feeding disc, and the safety performance is improved and the labor intensity is reduced.

Description

Technical Field

[0001] This invention relates to the field of button sewing machine technology, and more particularly to a garment button sewing device. Background Technology

[0002] In daily life, people usually rivet buttons on clothes made of stiff materials such as jeans and denim jackets. These buttons need to be manually inserted through the clothes and then hammered with tools to deform the buttons and complete the riveting. This is labor-intensive and can easily cause injury to the operator, so button-making devices were developed.

[0003] Chinese Patent Application No. 202122121477.3 discloses a garment fastening device, including a machine body with a hinged door, a mounting frame fixedly installed on the top of the machine body, an electric push cylinder above the mounting frame, a push rod of the electric push cylinder extending through to the bottom of the mounting frame, a punching head connected to the end of the push rod, a punching groove provided directly below the punching head, a sliding groove connected to one side of the punching groove, a groove provided on the side of the machine body away from the door, a garment fastening push assembly detachably connected in the groove, and a cylindrical punching head with a diameter smaller than the diameter of the punching groove.

[0004] The patent arranges the buttons in sequence in the slide groove, pushes the buttons into the stamping groove by the button pushing component, moves the clothes that need to be fitted with the buttons to the top of the stamping groove, and the electric push cylinder drives the stamping head to stamp the buttons, so that they are riveted to the clothes.

[0005] However, due to the different shapes and sizes of buttons, the button pushing assembly cannot guarantee that the button is centered in the stamping groove when it pushes the button into the stamping groove. This results in uneven force on the button when the stamping head descends, and the button cannot be completely riveted to the garment. The quality of the garment cannot be guaranteed. In severe cases, the button may fly out of the stamping groove and injure the operator when subjected to pressure on one side. Therefore, the operator needs to manually adjust the position of the button to make it centered in the stamping groove, which is labor-intensive. Summary of the Invention

[0006] This invention addresses the shortcomings of existing button-sewing devices, which require manual adjustment of button positions and involve high labor intensity, by providing a garment-making button-sewing device that reduces labor intensity.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0008] A garment fastening device includes a worktable and a fastening assembly. The fastening assembly includes a stamping table fixed to the worktable for placing garments and a stamping head that is vertically reciprocating and can rivet buttons onto the garment when descending. A conveying structure is provided on the worktable to convey buttons between the stamping head and the stamping table. The conveying structure includes a material transfer mechanism that can transport multiple buttons one by one to the fastening assembly, and a material storage and unloading mechanism that can drop buttons one by one onto the material transfer mechanism. The material transfer mechanism includes a fixed platform fixed between the stamping head and the stamping table and having a stamping slot through which the stamping head can pass; and a feeding tray that rotates concentrically above the fixed platform and has several positioning slots spaced circumferentially around the center of rotation. A conveying position for holding a button is formed between the positioning slots and the fixed platform below. An annular airbag is provided on the inner wall of the positioning channel, which positions and clamps the center of the button when it expands and fits the gap between the button when it contracts. The expansion or contraction of the annular airbag is controlled by an inflation / deflation mechanism, which includes an air storage tank on the feeding tray and communicating with the annular airbag, a piston that moves and seals within the air storage tank, and a pressing member on a fixed platform that can compress the piston to inflate the annular airbag. A first elastic reset member is provided between the piston and the air storage tank, which drives the piston to reset when it disengages from the pressing member, thereby causing the annular airbag to contract. Before the positioning channel rotates from the material storage and unloading mechanism to be directly opposite the stamping channel, the annular airbag switches from the contracted state to the expanded state; before the positioning channel rotates from the stamping channel to be directly below the material storage and unloading mechanism, the annular airbag switches from the expanded state to the contracted state.

[0009] Compared to existing technologies where buttons are automatically conveyed to the stamping groove but require manual adjustment to ensure their center position below the stamping head for safety and garment quality, this invention, employing a material feeding mechanism, automatically controls the buttons to fall into the conveying position. To expand the versatility of the conveying position and accommodate buttons of various sizes, the positioning slot is larger than the button. The feeding disc rotates to convey the button. As the feeding disc rotates the positioning slot containing the button from the material feeding mechanism to align with the stamping groove, the extruder pushes the piston upwards, compressing air from the air storage tank into the annular air bladder, causing the annular air bladder to inflate. During expansion, the button is centered and elastically clamped. When the positioning groove rotates to align with the stamping groove, the button is confined within the positioning groove by the elastic clamping of the annular air bladder, preventing it from falling off automatically. It only disengages from the annular air bladder under pressure from the stamping head, and is then riveted to the garment with the cooperation of the stamping head and stamping table. After riveting, the stamping head rises and disengages from the positioning groove, and the feeding disc continues to rotate. As the positioning groove rotates from its position opposite the stamping groove to its position directly below the material storage and unloading mechanism, the pressure from the extrusion component on the piston disappears. Under the action of the first elastic reset component, the piston descends, drawing air from the annular air bladder into the air storage groove. The annular air bladder then contracts and is housed on the inner wall of the positioning groove, facilitating the button's insertion. The button's center positioning and clamping are completed simultaneously with the rotation of the feeding disc, improving safety and reducing labor intensity.

[0010] Preferably, the lower end of the piston is provided with an extrusion block, the bottom of which is set as an extrusion slope that is inclined upward along the rotation direction of the feeding disc. The upper end of the extrusion member is provided with a guide slope that cooperates with the extrusion slope to drive the annular airbag to gradually expand, and an extrusion plane that maintains the expanded state when the annular airbag expands to the maximum stroke. When the extrusion block is disengaged from the extrusion plane, the piston is reset under the action of the first elastic reset member, and the annular airbag contracts.

[0011] Using the above scheme, during the rotation of the feeding disc, the extrusion slope first contacts the guide slope, and then the extrusion slides, driving the extrusion block to rise, that is, controlling the piston to rise and drive the annular airbag to expand; when the extrusion block separates from the guide slope with the rotation of the feeding disc and then slides against the extrusion plane, the annular airbag expands to its maximum stroke and remains in an expanded state. At this time, the positioning through groove of the annular airbag is aligned with the stamping through groove; after the button riveting is completed, the feeding disc continues to rotate, the extrusion block separates from the extrusion plane, the piston descends and resets under the action of the first elastic reset member, and the annular airbag contracts.

[0012] Preferably, the cross-section of the extrusion block and the extrusion piece is an arc shape concentric with the feed tray.

[0013] By adopting the above scheme, the surface is set to be arc-shaped and concentric with the feeding plate, so that the extrusion slope and guide slope can slide more smoothly when the feeding plate rotates.

[0014] Preferably, the fixed platform has an annular groove on the side near the feeding tray for inserting the extrusion block and rotating around the center of the fixed platform with the feeding tray, and the extrusion block is fixedly installed in the annular groove.

[0015] With the above scheme, the extrusion part is set in the annular groove. The extrusion block is inserted into the annular groove when it is not being extruded by the extrusion part and can rotate smoothly with the feeding plate. This reduces the distance between the feeding plate and the fixed table, making the two fit together and ensuring that the buttons can be conveyed with the rotation of the feeding plate.

[0016] Preferably, the material storage and unloading mechanism includes a button storage cylinder vertically fixed on the worktable and an unloading platform fixed below the button storage cylinder at the same height as a button. The unloading platform has an unloading channel that is offset from the button storage cylinder. A pusher and stop assembly is guided to move on the unloading platform. The pusher and stop assembly includes a pusher component fixedly connected between the unloading platform and the button storage cylinder and a stop plate located below the unloading platform. As the pusher and stop assembly rotates along the rotation direction of the feeding disc on the unloading platform, the pusher component blocks the lower end of the button storage cylinder and pushes a button on the unloading platform into the unloading channel. The stop plate moves synchronously and blocks the lower end of the unloading channel before the button falls into it. The movement of the stop plate in blocking or exposing the unloading channel is controlled by the linkage assembly.

[0017] Using the above-mentioned solution, in the existing technology, when the buttons in the button pushing component are used up, they need to be replaced or manually added one by one, and the number of remaining buttons needs to be monitored at all times, which is labor-intensive. By setting a button storage cylinder that runs vertically through the cylinder and a dropping platform below the cylinder, the distance between the lower opening of the dropping platform and the button storage cylinder is greater than or equal to the thickness of one button and less than the thickness of two buttons. When the linkage component drives the baffle plate to move to block the lower end of the dropping channel, the pushing component moves synchronously. At the same time as the baffle plate blocks the lower end of the dropping channel, it pushes a button on the dropping platform into the dropping channel. The pushing component also blocks the lower end of the button storage cylinder, restricting the buttons in the cylinder from falling. The linkage component drives the baffle plate to move in the opposite direction, the baffle plate is exposed from the dropping channel, the pushing component is exposed from the button storage cylinder, and the buttons in the dropping channel fall naturally into the conveying position, and the buttons in the button storage cylinder fall naturally onto the dropping platform. Because the button storage cylinder runs through the top and bottom, only a conveyor belt for conveying buttons needs to be connected to the upper end of the cylinder to achieve automatic button replenishment without the need for additional disassembly or replenishment, thus reducing labor intensity.

[0018] Preferably, the linkage component includes a push block that is elastically raised and lowered on the feeding tray between adjacent positioning slots and can push the pusher and stop assembly to rotate synchronously in the rotation direction of the feeding tray when it rises; and a second elastic reset member that is disposed between the pusher and stop assembly and the unloading platform and automatically moves in the opposite direction of the rotation direction of the feeding tray when the pusher and stop assembly loses its pushing force. The descent of the push block is controlled by a drive member, and a third elastic reset member that automatically rises when the push block loses its pressure is disposed between the feeding tray and the push block.

[0019] Using the above scheme, the feeding disc rotates, and the pusher block closest to the pusher-stop assembly abuts against the pusher-stop assembly, pushing the pusher-stop assembly to rotate synchronously in the rotation direction of the feeding disc. This causes the baffle plate to block the material drop channel and drives the pusher component to push the button into the material drop channel. At this time, there is a conveying position directly opposite the material drop channel. The drive component descends, causing the pusher block to descend and disengage from the pusher-stop assembly. After losing the pusher block's thrust, the second elastic reset component drives the pusher-stop assembly to rotate in the opposite direction, exposing the material drop channel and the lower end of the button storage cylinder, and the button falls into the conveying position. Subsequently, the pressure from the drive component on the pusher block disappears, and the pusher block extends under the action of the third elastic reset component, waiting for the next push of the pusher-stop assembly.

[0020] Preferably, the descent of the driving component is controlled by the descent of the stamping head, and the lifting of the stamping head is controlled by the cylinder. The piston rod end of the cylinder is fixed to the upper end of the stamping head. The driving component is a pressure rod fixed to the side wall of the piston rod. When any positioning through slot and the stamping through slot are aligned, there is a conveying position aligned with the unloading through slot.

[0021] Using the above scheme, when any positioning slot and stamping slot are aligned, there is a conveying position aligned with the dropping slot. The piston rod of the cylinder descends, the stamping head descends to rivet the button, and the pressure rod descends synchronously, driving the push block to descend and disengage from the pusher and stop assembly. That is, without additional drive, the button can be dropped into the conveying position during the process of the feeding disc rotating to feed material and the stamping head descending to rivet.

[0022] This invention, by adopting the above technical solutions, has significant technical effects:

[0023] 1. During the process of the feeding disc rotating to transport the buttons from the storage and unloading mechanism to the button assembly, the extrusion component and the extrusion block cooperate through the extrusion inclined surface and the guide inclined surface to control the piston component to rise and drive the annular airbag to expand, thereby performing center positioning and clamping of the buttons; after the buttons are riveted, the feeding disc continues to rotate and rotates the positioning channel to below the storage and unloading mechanism. During this process, the extrusion block disengages from the extrusion plane, and the first elastic reset component controls the piston component to descend and drive the annular airbag to contract and be stored on the inner wall of the positioning channel. This facilitates the buttons falling into the conveying position when they automatically fall from the unloading channel. The center positioning and clamping of the buttons is completed at the same time as the feeding disc rotates to feed the buttons, improving safety performance and reducing labor intensity.

[0024] 2. The button storage cylinder runs vertically through the garment. As the feeding disc rotates, it drives the buttons on the dropping platform into the dropping channel. The descending punch head then drives the buttons in the dropping channel into the conveyor position. No additional drive is needed; the buttons fall during the feeding disc's rotation and the punch head's descent for riveting. Because the button storage cylinder runs vertically, only a conveyor belt needs to be connected to the upper end of the cylinder for automatic button replenishment, eliminating the need for additional disassembly or replenishment and reducing labor intensity. Through these two advantages, the garment button-attaching device can complete the falling, conveying, and center-positioning clamping of buttons simply by rotating the feeding disc and descending the punch head, reducing labor intensity. Attached Figure Description

[0025] Figure 1 This is a front view of a garment fastening device in one embodiment, where the center of the garment fastener is positioned and the punch head has not descended;

[0026] Figure 2 yes Figure 1 Sectional view at point AA;

[0027] Figure 3 yes Figure 2 Enlarged view of point B in the image;

[0028] Figure 4 This is a partial enlarged view of a garment fastening device in one embodiment after the center of the garment fastener is positioned and the punch head is lowered;

[0029] Figure 5 This is a partial enlarged view of a garment fastening device in one embodiment, showing the stamping head descending to drive the garment fastener to rise after riveting;

[0030] Figure 6 This is an isometric view of a garment buttoning device in one embodiment, with the button center positioned and the punch head not descending;

[0031] Figure 7 yes Figure 6 Enlarged view of point C in the image;

[0032] Figure 8 This is a partial enlarged view of a garment fastening device in one embodiment after the center of the garment fastener is positioned and the punch head is lowered;

[0033] Figure 9 This is an isometric view of a garment buttoning device in one embodiment, with the button center positioned and the punch head not descending;

[0034] Figure 10 yes Figure 9 Enlarged view of point D in the image;

[0035] Figure 11 This is an exploded view of a garment fastening device in one embodiment;

[0036] Figure 12 yes Figure 11 Enlarged view of point E in the image;

[0037] Figure 13 yes Figure 11 Enlarged view of point F in the image;

[0038] Figure 14 This is an exploded view of a garment fastening device in one embodiment;

[0039] Figure 15 yes Figure 14 Enlarged view of point G in the image;

[0040] Figure 16 yes Figure 14 Enlarged view of point H in the image;

[0041] Figure 17 This is a top view of the material conveying mechanism and the air inflation / deflation mechanism in a garment fastening device according to the embodiment;

[0042] Figure 18 yes Figure 17 Sectional view at point II in the middle;

[0043] Figure 19 yes Figure 18 Enlarged view of point J in the image.

[0044] The parts referred to by the numbers in the above attached figures are as follows: 1. Button; 2. Workbench; 3. Stamping table; 4. Stamping head; 5. Stamping slot; 6. Fixed table; 7. Positioning slot; 8. Feeding tray; 9. Conveying position; 10. Annular airbag; 11. Air storage tank; 12. Piston; 13. Extrusion part; 14. First elastic reset part; 15. Extrusion block; 16. Extrusion slope; 17. Guide slope; 18. Extrusion plane; 19. Annular groove; 20. Button storage cylinder; 21. Discharge platform; 22. Discharge slot; 23. Pushing part; 24. Baffle plate; 25. Push block; 26. Second elastic reset part; 27. Third elastic reset part; 28. Cylinder; 29. ​​Pressure rod. Detailed Implementation

[0045] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0046] Example

[0047] A garment sewing device, as shown in the reference Figures 1 to 19The system includes a workbench 2, on which a stamping table 3 for placing garments is fixedly mounted. A cylinder 28 is fixedly mounted directly above the stamping table 3. A stamping head 4 is fixedly mounted on the end of the piston rod of the cylinder 28 away from the cylinder body, and the stamping head 4 faces the stamping table 3. The cylinder 28 controls the stamping head 4 to descend vertically and cooperate with the stamping table 3 to rivet the button 1 onto the garment.

[0048] The workbench 2 is also equipped with a conveying structure for automatically conveying the button 1 between the stamping table 3 and the stamping head 4. The conveying structure includes a material storage and unloading mechanism and a material transfer mechanism. The material storage and unloading mechanism conveys the button 1 to the material transfer mechanism, and the material transfer mechanism transports the button 1 between the stamping table 3 and the stamping head 4.

[0049] The material transfer mechanism includes a fixed platform 6 fixed between the punch head 4 and the punching table 3. The fixed platform 6 is provided with a punching through groove 5 through which the punch head 4 can pass. A feeding tray 8 is concentrically rotatably connected to the fixed platform 6. Several positioning through grooves 7 are evenly spaced around the rotation center on the feeding tray 8. The positioning through grooves 7 can be passed through by the punch head 4. In this embodiment, there are 6 positioning through grooves 7. The positioning through grooves 7 and the fixed platform 6 below form a transfer position 9 for holding a button 1. In order to expand the versatility of the transfer position 9 and adapt to buttons 1 of various sizes, the positioning through grooves 7 are larger than the button 1. Therefore, when the button 1 is transferred by the feeding tray 8, it is necessary to ensure the center positioning of the button 1. Therefore, an annular airbag 10 is fixedly connected to the inner wall of the positioning groove 7. When the annular airbag 10 expands, it positions and clamps the center of the button 1. The positioning groove 7 after the annular airbag 10 expands can still be smoothly passed through when the punch head 4 descends. When the annular airbag 10 contracts, it is stored on the inner wall of the positioning groove 7 and fits with the button 1 with a gap. The expansion or contraction of the annular airbag 10 is controlled by the inflation and deflation mechanism.

[0050] The inflation / deflation mechanism includes an air storage tank 11 that is recessed upward on the side of the feeding tray 8 near the fixed platform 6 and communicates with the annular airbag 10. A piston 12 is sealed and raised inside the air storage tank 11. A compression block 15 is provided at the lower end of the piston 12. The bottom of the compression block 15 is configured as a compression slope 16 that is inclined upward along the rotation direction of the feeding tray 8. A compression member 13 that can compress the piston 12 to inflate the annular airbag 10 is fixedly provided on the fixed platform 6. A guide slope 17 that cooperates with the compression slope 16 to drive the annular airbag 10 to gradually inflate is provided at the upper end of the compression member 13. A compression plane 18 that maintains the inflated state when the annular airbag 10 inflates to its maximum stroke is also provided. A first elastic reset member 14 is provided between the piston 12 and the air storage tank 11.

[0051] As the feeding disc 8 rotates from the material storage and unloading mechanism to face the stamping slot 5, the extrusion slope 16 first contacts the guide slope 17, then slides and extrudes, driving the extrusion block 15 to rise. This extrudes the air in the air storage tank 11 into the annular airbag 10, causing the annular airbag 10 to expand. During expansion, the annular airbag 10 centers and elastically clamps the button 1. When the extrusion block 15 disengages from the guide slope 17 with the rotation of the feeding disc 8, it slides and extrudes against the extrusion plane 18. At this time, the annular airbag 10 expands to its maximum stroke and remains expanded. The positioning slot 7 with the annular airbag 10 is now aligned with the stamping slot 5, and the button 1... Because the elastic clamping limit of the annular airbag 10 is located in the positioning groove 7, the button 1 is prevented from falling off automatically. It will only disengage from the annular airbag 10 when it is subjected to the pressure of the punching head 4. With the cooperation of the punching head 4 and the punching table 3, it is riveted to the garment. After the button 1 is riveted, the punching head 4 rises and disengages from the positioning groove 7. The feeding plate 8 continues to rotate. During the process of the positioning groove 7 rotating from being directly opposite the punching groove 5 to being directly below the material storage and unloading mechanism, the extrusion block 15 disengages from the extrusion plane 18 and descends under the action of the first elastic reset member 14, drawing the air in the annular airbag 10 into the air storage groove 11. The annular airbag 10 contracts and is stored on the inner wall of the positioning groove 7, making it easy for the button 1 to fall in.

[0052] The cross-sections of the extrusion block 15 and the extrusion piece 13 are arc-shaped and concentric with the feeding tray 8. The fixed platform 6 has an annular groove 19 recessed on the side near the feeding tray 8. The extrusion piece 13 is fixedly installed in the annular groove 19. The extrusion block 15 is inserted into the annular groove 19 and rotates around the center of the fixed platform 6 with the feeding tray 8, which reduces the distance between the feeding tray 8 and the fixed platform 6, so that the two are in clearance fit, ensuring that the button 1 can be conveyed with the rotation of the feeding tray 8.

[0053] In addition, in the existing technology, when the buttons 1 in the button 1 push component are used up, they need to be replaced or manually added in sequence, and the number of remaining buttons 1 needs to be monitored at all times, which is labor-intensive. Therefore, a material storage and unloading mechanism is set up, which eliminates the need for manual replacement or addition of buttons 1, improves the degree of automation and reduces labor intensity.

[0054] The material storage and unloading mechanism includes a storage cylinder 20 vertically fixed on the workbench 2, which extends vertically. A unloading platform 21 is fixedly installed below the storage cylinder 20, and there is a gap of one button 1 height between the unloading platform 21 and the lower end of the storage cylinder 20. The unloading platform 21 also has a unloading channel 22 that is offset from the storage cylinder 20. A pusher and stop assembly is guided and moved on the unloading platform 21. The pusher and stop assembly includes a pusher component 23 fixedly connected between the unloading platform 21 and the storage cylinder 20, and a stop plate 24 located below the unloading platform 21. The pusher and stop assembly can rotate in the same direction as the feeding disc 8 or in the opposite direction. Its rotation is controlled by a linkage component. When the pusher and stop assembly rotates along the rotation direction of the feeding disc 8 on the dropping platform 21, the stop plate 24 moves to block the lower end of the dropping channel 22. Simultaneously, the pusher component 23 moves to push a button 1 from the dropping platform 21 into the dropping channel 22 while the stop plate 24 blocks the lower end of the dropping channel 22. The pusher component 23 also blocks the lower end of the button storage cylinder 20, restricting the falling of the button 1 within the cylinder. The linkage component drives the stop plate 24 to move in the opposite direction, exposing the stop plate 24 in the dropping channel 22 and the pusher component 23 in the button storage cylinder 20. The button 1 in the dropping channel 22 falls naturally into the conveyor position 9, and the button 1 in the button storage cylinder 20 falls naturally onto the dropping platform 21. Since the button storage cylinder 20 runs vertically through the cylinder, only a conveyor belt needs to be connected to the upper end of the button storage cylinder 20 to automatically replenish the button 1, eliminating the need for additional disassembly or replenishment and reducing labor intensity. The conveyor belt configuration is existing technology and is not shown in the figure, nor will it be described in detail here.

[0055] The linkage assembly includes a push block 25 that is elastically and vertically mounted on the feeding tray 8 between adjacent positioning slots 7. The descent of the push block 25 is controlled by a drive component. A third elastic reset component 27 is provided between the feeding tray 8 and the push block 25. When the pressure from the drive component on the push block 25 is removed, the push block 25 extends under the action of the third elastic reset component 27. The drive component is a pressure rod 29 fixed to the side wall of the piston rod. The pressure rod 29 descends synchronously with the punch head 4.

[0056] When the pusher block 25 extends, it first comes into contact with the material pusher and stop assembly as the feeding disc 8 rotates. Then, it pushes the material pusher and stop assembly to rotate synchronously in the direction of rotation of the feeding disc 8, causing the stop plate 24 to block the material drop channel 22 and causing the pusher component 23 to push the button 1 into the material drop channel 22. When the pusher block 25 descends, it disengages from the material pusher and stop assembly, at which point the material pusher and stop assembly loses its pushing force. A second elastic reset component 26 is provided between the material pusher and stop assembly and the material drop platform 21. When the material pusher and stop assembly loses its pushing force, the second elastic reset component 26 causes the material pusher and stop assembly to move automatically in the opposite direction of rotation of the feeding disc 8, exposing the material drop channel 22 and the lower end of the button storage cylinder 20. Since the pressure rod 29 and the stamping head 4 descend synchronously, when any positioning slot 7 and the stamping slot 5 are aligned, a conveying position 9 needs to be aligned with the dropping slot 22. After the dropping slot 22 and the lower end of the button storage cylinder 20 are exposed, the button 1 falls into the conveying position 9, and the button 1 in the button storage cylinder 20 falls onto the dropping platform 21. The piston rod of the cylinder 28 descends, the stamping head 4 descends to rivet the button 1, and the pressure rod 29 descends synchronously, driving the push block 25 to descend and disengage from the pusher and stop assembly. That is, without additional drive, the button 1 can fall into the conveying position 9 during the process of the feeding plate 8 rotating to feed and the stamping head 4 descending to rivet. In this embodiment, a stop bar is provided below the stop plate 24. The push block 25 and the stop bar abut against each other, driving the pusher and stop assembly to rotate synchronously along the rotation direction of the feeding plate 8.

[0057] The feeding disc 8 rotates, causing the pusher block 25 to rotate until it abuts against the material pusher and stop assembly. The feeding disc 8 continues to rotate, and the pusher block 25 pushes the material pusher and stop assembly to rotate synchronously along the rotation direction of the feeding disc 8, causing the stop plate 24 to block the lower end of the material drop channel 22. While the stop plate 24 blocks the lower end of the material drop channel 22, the pusher component 23 drives the button 1 on the material drop platform 21 to fall into the material drop channel 22. The lower limit of the stop plate 24 is located in the material drop channel 22. At this time, there is a conveying position 9 directly opposite the material drop channel 22, and there is a positioning channel 7 directly opposite the stamping channel 5. The cylinder 28 drives the stamping head 4 and the pressure rod 29 to descend synchronously. The push block 25 is pressed down and disengages from the pusher and stop assembly. Under the action of the second elastic reset member 26, the pusher and stop assembly rotates in the opposite direction, exposing the lower end of the drop channel 22 and the button storage cylinder 20. The buttons 1 in the drop channel 22 fall naturally into the conveyor position 9, and the buttons 1 in the button storage cylinder 20 fall naturally onto the drop platform 21.

[0058] The stamping head 4 and the pressure rod 29 rise synchronously, the push block 25 extends under the action of the third elastic reset member 27, the feeding tray 8 continues to rotate, and the positioning slot 7 holding the button 1 rotates from directly below the discharge slot 22 to be directly opposite the stamping slot 5. During this process, the extrusion slope 16 of the extrusion block 15 and the guide slope 17 of the extrusion member 13 extrude and slide, driving the piston member 12 to rise and extrude air, controlling the expansion of the annular airbag 10 to perform center positioning and clamping of the button 1; and due to the presence of the extrusion plane 18 When the positioning slot 7 and the stamping slot 5 for holding the button 1 are aligned, the annular airbag 10 remains inflated to prevent the button 1 from falling off automatically. After the button 1 is riveted, the feeding tray 8 continues to rotate, rotating the positioning slot 7 to directly below the discharge slot 22. During this process, the extrusion block 15 disengages from the extrusion plane 18, and the first elastic reset member 14 controls the piston member 12 to descend, causing the annular airbag 10 to contract and be stored on the inner wall of the positioning slot 7, so that the button 1 can fall into the conveying position 9 when it automatically falls from the discharge slot 22.

Claims

1. A garment fastening device, comprising a worktable (2) and a fastening assembly, the fastening assembly comprising a stamping table (3) fixed on the worktable (2) for placing garments and a stamping head (4) vertically reciprocating and capable of riveting buttons (1) onto garments when descending, wherein the worktable (2) is provided with a conveying structure for conveying buttons (1) between the stamping head (4) and the stamping table (3), characterized in that: The conveying structure includes a material conveying mechanism that can transport multiple buttons (1) one by one to the button assembly, and a material storage and unloading mechanism that can drop the buttons (1) one by one onto the material conveying mechanism. The material conveying mechanism includes a fixed platform (6) fixed between the punch head (4) and the punch table (3) and having a punching slot (5) through which the punch head (4) can pass, and a feeding tray (8) that rotates concentrically above the fixed platform (6) and has a number of positioning slots (7) spaced around the center of rotation. A conveying position (9) for holding a button (1) is formed between the positioning slot (7) and the fixed platform (6) below. The inner wall of the positioning slot (7) is provided with a mechanism that will release the button (1) into the material when it expands. The annular airbag (10) is positioned and clamped, and after shrinking, it is gap-fitted with the button (1). The expansion or contraction of the annular airbag (10) is controlled by the inflation and deflation mechanism, which includes an air storage tank (11) disposed on the feeding tray (8) and communicating with the annular airbag (10), a piston (12) that is sealed and moves in the air storage tank (11), and a squeezing member (13) disposed on the fixed platform (6) that can squeeze the piston (12) to inflate the annular airbag (10). A first spring is provided between the piston (12) and the air storage tank (11) to drive the piston (12) to reset when the piston (12) is disengaged from the squeezing member (13) so that the annular airbag (10) contracts. The resetting component (14) switches the annular airbag (10) from a contracted state to an expanded state before the positioning through groove (7) rotates from the material storage and unloading mechanism to be directly opposite the stamping through groove (5); the annular airbag (10) switches from an expanded state to a contracted state before the positioning through groove (7) rotates from the stamping through groove (5) to be directly below the material storage and unloading mechanism; the piston component (12) is provided with a pressing block (15) at its lower end, the bottom of the pressing block (15) is provided with a pressing slope (16) that is inclined upward along the rotation direction of the feeding disc (8), and the pressing component (13) is provided with a guide slope that cooperates with the pressing slope (16) to drive the annular airbag (10) to gradually expand. 17) and the extrusion plane (18) that remains in an expanded state when the annular airbag (10) expands to its maximum stroke. When the extrusion block (15) is disengaged from the extrusion plane (18), the piston (12) is reset under the action of the first elastic reset member (14), and the annular airbag (10) contracts. The cross-section of the extrusion block (15) and the extrusion member (13) is an arc concentric with the feeding plate (8). The fixed platform (6) is recessed on the side near the feeding plate (8) for the extrusion block (15) to be inserted and rotates around the center of the fixed platform (6) with the feeding plate (8). The extrusion member (13) is fixedly disposed in the annular groove (19).

2. The garment sewing device according to claim 1, characterized in that: The material storage and unloading mechanism includes a storage cylinder (20) vertically fixed on the workbench (2) and an unloading platform (21) fixed below the storage cylinder (20) and at the same height as a button (1). The unloading platform (21) has an unloading channel (22) offset from the storage cylinder (20). A pusher and stop assembly is guided and moved on the unloading platform (21). The pusher and stop assembly includes a pusher component (23) fixedly connected and located between the unloading platform (21) and the storage cylinder (20) and located on the unloading platform. As the material pushing and blocking assembly rotates along the rotation direction of the feeding disc (8) on the material dropping platform (21), the material pushing component (23) blocks the lower end of the storage cylinder (20) and pushes a button (1) on the material dropping platform (21) into the material dropping channel (22). The material blocking plate (24) moves synchronously and blocks the lower end of the material dropping channel (22) before the button (1) falls into the material dropping channel (22). The movement of the material blocking plate (24) covering or exposing the material dropping channel (22) is controlled by the linkage component.

3. A garment fastening device according to claim 2, characterized in that: The linkage component includes a push block (25) that is elastically raised and lowered on the feeding tray (8) between adjacent positioning slots (7) and can push the pusher and stop assembly to rotate synchronously in the rotation direction of the feeding tray (8) when it rises; and a second elastic reset member (26) that is disposed between the pusher and stop assembly and the dropping platform (21) and automatically moves in the opposite direction of the rotation direction of the feeding tray (8) when the pusher and stop assembly loses its pushing force. The descent of the push block (25) is controlled by a drive member. A third elastic reset member (27) that automatically rises when the push block (25) loses its pressure is disposed between the feeding tray (8) and the push block (25).

4. A garment fastening device according to claim 3, characterized in that: The descent of the driving component is controlled by the descent of the stamping head (4), and the lifting of the stamping head (4) is controlled by the cylinder (28). The piston rod end of the cylinder (28) is fixed to the upper end of the stamping head (4). The driving component is a pressure rod (29) fixed on the side wall of the piston rod. When any positioning through slot (7) and stamping through slot (5) are aligned, there is a conveying position (9) aligned with the material dropping through slot (22).

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