Full-automatic snap fastener machine

Abstract

The invention provides a full-automatic snap fastener machine which comprises a machine frame, a rotary table mechanism arranged on the machine frame, a snap fastener plastic sheet feeding mechanism and a snap fastener secondary light curing mechanism. The snap fastener plastic sheet feeding mechanism and the snap fastener secondary light curing mechanism are sequentially arranged in the rotating direction of the rotary table mechanism. The rotary table mechanism comprises a disc, a conveying chain and a driving mechanism, the conveying chain is circularly conveyed in the circumferential direction of the disc, the driving mechanism drives the disc to rotate, the conveying chain is located on the disc, and the snap fastener secondary light curing mechanism comprises a conveying belt used for conveying snap fasteners and a second curing light source arranged above the conveying belt. And the curing light source is mounted below the disc. A turntable structure is adopted, a plurality of procedures are highly integrated in a compact circumferential space, real multi-station parallel continuous production is realized, the waiting time for transferring workpieces among independent equipment is eliminated, the production takt is fast, and the efficiency can be improved by several times compared with that of a traditional tandem production line.

Description

Technical Field

[0001] This invention relates to the field of snap fastener production technology, specifically to a fully automatic snap fastener machine. Background Technology

[0002] In existing technologies, such as Figure 3 and Figure 4 As shown, the snap fastener comprises a snap fastener plastic sheet and a film. Assembly of the snap fastener mainly involves bonding the plastic sheet and film together. The snap fastener plastic sheet has a front and a back, with the front having a raised portion. Therefore, the thickness of the snap fastener plastic sheet includes the thickness of the raised portion and the sheet itself. Snap fasteners are widely used in various industries due to their simple structure and ease of use. However, manual assembly of snap fasteners is inefficient and produces inconsistent product quality, failing to meet current demands. Existing semi-automated equipment typically uses a linear or single rotary station approach, connecting multiple independent single-function devices (such as dispensing machines, laminating machines, pressing machines, and curing ovens) in series via conveyor belts. Both of these methods are inefficient, and the series connection of multiple independent devices results in a large footprint and a non-compact production line layout. Furthermore, in linear conveying, the synchronization and repeatability of positioning between different stations are difficult to guarantee. Therefore, existing technologies require further development.

[0003] Therefore, existing technologies need further development. Summary of the Invention

[0004] To address the shortcomings of existing technologies and solve the aforementioned problems, a fully automatic snap fastener machine is proposed, and the following technical solution is provided: A fully automatic snap fastener machine includes a frame, a turntable mechanism mounted on the frame, and snap fastener plastic sheet feeding mechanism and snap fastener secondary light curing mechanism arranged sequentially along the rotation direction of the turntable mechanism. The turntable mechanism includes a disc, a transmission chain that circulates around the disc, and a drive mechanism that drives the disc to rotate. The transmission chain is located on the disc and has snap fastener fixtures on it. The snap fastener plastic sheet feeding mechanism applies adhesive to snap fastener plastic sheets one by one and delivers them to the snap fastener fixtures at the feeding position. The snap fastener secondary light curing mechanism includes a conveyor belt for conveying snap fasteners and a second curing light source mounted above the conveyor belt. The curing light source is installed below the disc. The conveyor belt has an inlet end and an outlet end. The inlet end corresponds to the unloading station, and snap fasteners to be secondary light cured fall from the unloading station into the inlet end.

[0005] Furthermore, a connecting plate is connected to the transmission chain, and the snap fastener is connected to the transmission chain by being set on the connecting plate. The snap fastener includes a tooling groove, the groove shape of which matches the shape of the film. A supporting step for supporting the edge of the film is provided around the inner wall of the tooling groove. A supporting hole for supporting the snap fastener plastic sheet is provided on the bottom of the tooling groove. The shape of the supporting hole matches the outer contour shape of the snap fastener plastic sheet so that the snap fastener plastic sheet is loaded into the supporting hole.

[0006] Furthermore, the two adjacent female fasteners arranged along the transmission direction of the transmission chain form a set of female fastener sets. The two female fasteners in each set are fixedly installed on the same connecting plate and move with the connecting plate as an integral unit.

[0007] Furthermore, the driving mechanism includes a divider, the output shaft of which is connected to the disk to drive the disk and the transmission chain to rotate intermittently, so that each set of male and female fasteners can be aligned and stop at a processing station simultaneously after rotation.

[0008] Furthermore, the feeding mechanism for the snap fastener plastic sheet includes: Conveying assembly for conveying snap fastener plastic sheets; The transfer fixture is located between the conveying assembly and the material position on the plastic sheet with the snap fastener. A receiving assembly, located at the end of the conveying assembly, is used to transfer the female buckle plastic sheet conveyed by the conveying assembly to the transfer fixture; The transfer assembly is used to grab the snap-fit ​​plastic sheet from the transfer fixture for feeding. The receiving assembly is located between the conveying assembly and the transfer fixture and reciprocates between the conveying assembly and the transfer fixture.

[0009] Furthermore, the receiving assembly includes a rotating shaft, a swing assembly, and a clamping component. One end of the swing assembly is connected to the rotating shaft, and the other end is connected to the clamping component. The swing assembly includes a first swing plate, a second swing plate, a first connecting plate, and a second connecting plate. The first and second swing plates are located at opposite ends of the rotating shaft and rotate with the rotating shaft. The first and second swing plates are connected by a first connecting plate, and the second connecting plate is located above the first connecting plate and slidably connected to it. The first and second swing plates are respectively provided with a first connecting hole and a second connecting hole. The rotating shaft passes through the first and second connecting holes and connects to the first and second swing plates. The first connecting plate is provided with a slide rail, and the second connecting plate is provided with a slider corresponding to the slide rail. The clamping component is located at the end of the second connecting plate.

[0010] Furthermore, the transfer assembly includes a transfer gripper and a transfer swing arm. The transfer gripper grips the snap-fit ​​plastic sheet located on the transfer fixture and transfers it for loading under the swinging action of the transfer swing arm. The transfer assembly also includes a fixed base and a linear guide rail. One end of the transfer swing arm is rotatably mounted on the fixed base. The fixed base is provided with an arc-shaped slide rail. The other end of the transfer swing arm is provided with an oblong hole. One end of the linear guide rail, the oblong hole, and the arc-shaped slide rail are connected by a connecting shaft. The fixed base is provided with a connecting slider. The linear guide rail is slidably connected to the connecting slider. The transfer gripper is located at the other end of the linear guide rail.

[0011] Furthermore, along the rotation direction of the turntable mechanism, a glue coating mechanism, a film feeding mechanism, a glue pressing mechanism, and a material unloading mechanism are arranged in sequence. The glue coating mechanism, film feeding mechanism, glue pressing mechanism, and material unloading mechanism are respectively located between the snap fastener plastic sheet feeding mechanism and the snap fastener secondary light curing mechanism.

[0012] Furthermore, a first cover plate covering the central area of ​​the disc and a second cover plate surrounding the outer perimeter of the disc and covering the conveyor chain area are provided above the disc. The second cover plate is located between the adhesive pressing station and the unloading station. A first curing light source is installed on the lower surface of the second cover plate to perform the first curing of the glued fastener. After the first curing, the fastener enters the feed end of the conveyor belt through the unloading mechanism for the second curing.

[0013] Furthermore, the second curing light source includes a second curing light source A and a second curing light source B along the conveyor belt's transport direction. The distance between the second curing light source A and the unloading position is less than the distance between the second curing light source B and the unloading position. The light intensity of the second curing light source A is greater than the light intensity of the second curing light source B.

[0014] Beneficial effects: 1. This invention adopts a turntable structure, which highly integrates multiple processes such as feeding, gluing, film feeding, pressing, curing, and unloading of the snap fastener plastic sheet into a compact circular space. The snap fastener tooling moves synchronously and precisely between each station, realizing true multi-station parallel continuous production. It eliminates the waiting time for workpieces to be transferred between independent equipment, resulting in a fast production cycle and efficiency that can be several times higher than that of traditional serial production lines.

[0015] 2. The present invention also includes a secondary light curing mechanism, which is combined with the first curing light source on the turntable structure to achieve full curing of the male and female fasteners.

[0016] 3. This invention reduces the labor intensity of operators, makes the whole process simpler, and achieves automation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the fully automatic snap fastener machine of the present invention; Figure 2 This is a top view of the fully automatic snap fastener machine of the present invention; Figure 3 This is a structural diagram of the female buckle; Figure 4 This is a structural diagram of the button; Figure 5 This is a structural diagram of the female fastener fixture; Figure 6 This is a structural diagram of the snap fastener fixture; Figure 7 This is a structural diagram of the snap fastener assembly; Figure 8 This is a schematic diagram of the turntable mechanism; Figure 9 This is a schematic diagram of the disk's structure; Figure 10 This is a structural schematic diagram of the first cover plate; Figure 11 This is a structural schematic diagram of the second cover plate; Figure 12 This is a schematic diagram of the secondary photocuring mechanism for the snap fastener; Figure 13 This is a schematic diagram of the conveyor belt structure; Figure 14 This is a structural diagram of the fixed plate; Figure 15 This is a schematic diagram of the second curing light source; Figure 16 This is the front view of the snap-fit ​​plastic sheet feeding mechanism; Figure 17 This is a schematic diagram of the feeding mechanism for the snap-fit ​​plastic sheet; Figure 18 This is a structural diagram of the receiving assembly; Figure 19 This is a schematic diagram of the slide rail and slider; Figure 20 This is a schematic diagram of the transfer component.

[0018] The above figures include the following reference numerals: 11. Female buckle fixture; 12. Male buckle fixture; 13. Fixture slot; 14. Bearing hole; 15. Extension groove; 16. Female and male buckle fixture assembly; 2. Turntable mechanism; 21. Disc; 22. First cover plate; 221. Mounting hole; 23. Second cover plate; 231. First curing light source; 3. Female and male buckle plastic sheet feeding mechanism; 31. Conveying assembly; 32. Receiving assembly; 321. Rotating shaft; 322. First swing plate; 323. Second swing plate; 324. First connecting plate; 3241. Slide rail; 325. Second connecting plate; 3251. Slider; 326. Clamp 33. Holding component; 34. Transfer fixture; 35. Transfer assembly; 36. Transfer gripper; 37. Transfer swing arm; 38. Waist-shaped hole; 39. Fixing base; 30. Arc-shaped slide; 31. Linear guide rail; 32. Connecting shaft; 4. Snap-fit ​​secondary light curing mechanism; 41. Conveyor belt; 411. Feeding end; 412. Discharge end; 42. Fixing plate; 43. Second curing light source; 431. Second curing light source A; 432. Second curing light source B; 5. Frame; 6. Glue application mechanism; 7. Film loading mechanism; 8. Glue pressing mechanism; 9. Unloading mechanism. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Based on the embodiments in this application, other similar embodiments obtained by those skilled in the art without creative effort should all fall within the scope of protection of this application.

[0020] According to an embodiment of the present invention, a fully automatic snap fastener machine is provided, such as... Figure 1 and Figure 2As shown, the system includes a frame 5, a turntable mechanism 2 mounted on the frame 5, and a snap fastener plastic sheet feeding mechanism 3 and a snap fastener secondary light curing mechanism 4 arranged sequentially along the rotation direction of the turntable mechanism 2. The turntable mechanism 2 includes a disc 21, a transmission chain that circulates around the disc 21, and a drive mechanism that drives the disc 21 to rotate. The transmission chain is located on the disc 21 and is equipped with snap fastener fixtures. The snap fastener plastic sheet feeding mechanism 3 applies adhesive to snap fastener plastic sheets one by one and delivers them to the snap fastener fixtures at the snap fastener plastic sheet feeding position. The snap fastener secondary light curing mechanism 4 includes a conveyor belt 41 for conveying snap fasteners and a second curing light source 43 mounted above the conveyor belt 41. The curing light source is installed below the disc 21. The conveyor belt 41 has an inlet end 411 and an outlet end 412. The inlet end 411 corresponds to the unloading station, and the snap fasteners to be secondary light cured fall from the unloading station into the inlet end 411. This invention employs a rotary table structure, highly integrating multiple processes such as feeding, gluing, film loading, pressing, curing, and unloading of the snap fastener plastic sheet into a compact circular space. The snap fastener fixture moves synchronously and precisely between each station, achieving true multi-station parallel continuous production. This eliminates the waiting time for transferring workpieces between independent devices, resulting in a faster production cycle and efficiency several times higher than traditional serial production lines. A secondary photocuring mechanism is also included to ensure complete curing of the snap fastener.

[0021] like Figures 3-6 As shown, a connecting plate is connected to the transmission chain. The snap fastener is connected to the transmission chain by being mounted on the connecting plate. The snap fastener includes a tooling groove 13, the groove shape of which matches the shape of the film. A supporting step for supporting the edge of the film is provided around the inner wall of the tooling groove 13. A supporting hole 14 for supporting the snap fastener plastic sheet is provided on the bottom of the tooling groove 13. The shape of the supporting hole 14 matches the outer contour shape of the snap fastener plastic sheet, allowing the snap fastener plastic sheet to be loaded into the supporting hole 14. Specifically, the snap fastener can be divided into a male snap fastener 12 and a female snap fastener 11. Specifically, the shape of the supporting hole 14 of the male snap fastener 12 matches the outer contour shape of the male snap fastener plastic sheet; the shape of the supporting hole 14 of the female snap fastener 11 matches the outer contour shape of the female snap fastener plastic sheet. Multiple snap fasteners arranged side by side on the connecting plate are the same male snap fastener 12 or female snap fastener 11. The fastener fixture also features a protruding step between the bearing hole 14 and the supporting step. This protruding step prevents the adhesive from bending during the pressing process after the fastener is glued. Additionally, the corner of the fastener fixture forms an extended groove 15, providing a certain amount of correction space. When placing the adhesive, it is not necessary for all four sides of the adhesive to be aligned with the corner. Furthermore, the finished product is more easily extracted from the fastener fixture during unloading.

[0022] like Figure 7As shown, two adjacent female-female fasteners arranged along the transmission direction of the transmission chain constitute a set of female-female fastener sets 16. The two female-female fasteners in each set 16 are fixedly mounted on the same connecting plate and move with the connecting plate as a whole unit. One set 16 can process two products at a time, doubling the output per cycle and significantly improving production efficiency.

[0023] The driving mechanism includes a divider, the output shaft of which is connected to the disc 21 to drive the disc 21 and the transmission chain to perform intermittent indexing rotations. This ensures that each set of male and female fasteners 16 can simultaneously align and stop at a processing station after rotation. The divider ensures that the disc 21 rotates with extremely high precision each time, and that the stopping position at each station is consistent. This guarantees that each tooling set can be precisely aligned at each processing station. This invention enables orderly operation at each station.

[0024] like Figure 8 and Figure 9 As shown, a plurality of radially extending support plates are evenly arranged on the disk 21 along its circumference, and the transmission chain is located on the support plates. The support plates provide a robust support surface, and the transmission chain, located on the support plates, can rotate with the disk 21. Specifically, the transmission chain is fixed to the support plates. The transmission chain is fixedly connected to the disk 21 and is directly driven by the disk 21.

[0025] Along the rotation direction of the turntable mechanism 2, a glue application mechanism 6, a film feeding mechanism 7, a glue pressing mechanism 8, and a material unloading mechanism 9 are sequentially arranged. These mechanisms are located between the snap fastener plastic sheet feeding mechanism 3 and the snap fastener secondary light curing mechanism 4. The snap fastener plastic sheet feeding mechanism 3, glue application mechanism 6, film feeding mechanism 7, glue pressing mechanism 8, and material unloading mechanism 9, along with the snap fastener secondary light curing mechanism 4, are highly integrated within a compact circular space, significantly improving efficiency.

[0026] like Figure 10 and Figure 11As shown, a first cover plate 22 covering the central area of ​​the disc 21 and a second cover plate 23 surrounding the disc 21 and covering the conveyor chain area are provided above the disc 21. The second cover plate 23 is located between the pressing station and the unloading station. A first curing light source 231 is installed on the lower surface of the second cover plate 23 to perform the first curing of the glued fasteners. After the first curing, the fasteners enter the feed end 411 of the conveyor belt 41 through the unloading mechanism 9 for the second curing. The first curing light source 231 is located under the second cover plate 23. After the workpiece is pressed at the pressing station, it can continue to be cured by light during the transfer process without the need for transfer. This not only shortens the production process, but more importantly, it avoids displacement or collision that may occur during the transfer of incompletely cured parts, ensuring the curing quality and consistency of the final product.

[0027] like Figure 8 and Figure 10 As shown, the first cover plate 22 can also cover the area between the adhesive pressing station and the unloading station at the same time, that is, the second cover plate 23 is located above the first cover plate 22. At this time, the first cover plate 22 is provided with mounting holes 221 corresponding to the first curing light source 231.

[0028] like Figure 12-14 As shown, the secondary photocuring mechanism 4 for the snap fastener also includes a fixing plate 42 located above the conveyor belt 41, and the conveyor belt 41 has the following structure: Figure 13 As shown, the second curing light source 43 is fixed on the fixing plate 42. The fixing plate 42 provides a solid and flat mounting reference surface for the second curing light source 43. This ensures that the distance and angle between the light source and the snap fastener on the conveyor belt 41 below are constant and precise.

[0029] like Figure 15 As shown, the second curing light source 43 includes a second curing light source A431 and a second curing light source B432 along the conveying direction of the conveyor belt 41. The distance between the second curing light source A431 and the unloading position is less than the distance between the second curing light source B432 and the unloading position. The light intensity of the second curing light source A431 is greater than the light intensity of the second curing light source B432. By using the second curing light source A431 and the second curing light source B432 arranged along the conveying direction of the conveyor belt 41, and with the second curing light source A431 having a greater intensity than the second curing light source B432, gradient curing can be achieved: first, the surface layer is rapidly cured with a higher intensity, and then the deeper layer is cured with a lower intensity. This avoids the problem of uneven curing inside and outside caused by one-time strong light curing, thereby improving the curing quality and product durability.

[0030] like Figure 16 and Figure 17As shown, the snap fastener plastic sheet feeding mechanism 3 includes: a conveying component 31 for conveying snap fastener plastic sheets; a transfer fixture 33 located between the conveying component 31 and the snap fastener plastic sheet feeding position; a receiving component 32 located at the end of the conveying component 31 for transferring the snap fastener plastic sheets conveyed by the conveying component 31 to the transfer fixture 33; and a transfer component 34 for gripping the snap fastener plastic sheets on the transfer fixture 33 for feeding. The receiving component 32 is located between the conveying component 31 and the transfer fixture 33 and reciprocates between the conveying component 31 and the transfer fixture 33. By setting up the cooperation between the conveying component 31, the transfer fixture 33, the receiving component 32, and the transfer component 34, the problem of rhythm matching between continuous conveying and intermittent precise feeding in the automated feeding process is effectively solved, allowing for smooth material flow. After receiving the snap-fit ​​plastic sheet from the end of the conveyor track, the receiving component 32 smoothly transfers it to the fixed transfer fixture 33 by swinging, providing a stable and uniformly positioned snap-fit ​​plastic sheet for the subsequent transfer component 34 to grip, thereby significantly improving the overall smoothness, reliability and production efficiency of the feeding system.

[0031] The conveying assembly 31 includes a vibrating screen and a feeding track for feeding the snap-on plastic sheets one by one in a queue. The vibrating screen includes a spirally upward queuing track for feeding the snap-on plastic sheets one by one in a queue, and a screening track for screening the posture of the queued snap-on plastic sheets. The end of the queuing track is connected to the beginning of the screening track. At the connection between the end of the queuing track and the beginning of the screening track, there is a flipping structure for changing the snap-on plastic sheet from a lying posture to a standing posture. The end of the queuing track is located on one side of the flipping structure and connected to the top of the flipping structure. The beginning of the screening track is located on the other side of the flipping structure and connected to the bottom of the flipping structure. The screening track consists of an inner track and an outer track, forming a travel gap between the inner and outer tracks for feeding the snap-on plastic sheets in a standing posture. The top of the inner track is higher than the top of the outer track. The width of the travel gap is greater than the thickness of the snap-on plastic sheet but less than the thickness of the protruding part and the overall thickness of the snap-on plastic sheet.

[0032] like Figure 18 and Figure 19As shown, the receiving assembly 32 includes a rotating shaft 321, a swing assembly, and a clamping component 326. One end of the swing assembly is connected to the rotating shaft 321, and the other end of the swing assembly is connected to the clamping component 326. The other end of the swing assembly is connected to the clamping component 326. The swing assembly includes a first swing plate 322, a second swing plate 323, a first connecting plate 324, and a second connecting plate 325. The first swing plate 322 and the second swing plate 323 are located at the two ends of the rotating shaft 321 and rotate with the rotating shaft 321. The first swing plate 322 and the second swing plate 323 are connected by the first connecting plate 324. The second connecting plate 325 is located above the first connecting plate 324 and is slidably connected to the first connecting plate 324. The first swing plate 322 and the second swing plate 323 are respectively provided with a first connecting hole and a second connecting hole. The rotating shaft 321 passes through the first connecting hole and the second connecting hole and is connected to the first swing plate 322 and the second swing plate 323. The first connecting plate 324 is provided with a slide rail 3241, and the second connecting plate 325 is provided with a slider 3251 corresponding to the slide rail 3241. The clamping component 326 is located at the end of the second connecting plate 325. The structure is simple and reliable, with a clear movement trajectory, low manufacturing cost and easy control. It can stably and accurately transfer the male and female plastic sheets between two workstations, ensuring the reliability of the feeding process.

[0033] like Figure 20As shown, the transfer assembly 34 includes a transfer gripper 341 and a transfer swing arm 342. The transfer gripper 341 grips the snap-fit ​​plastic sheet located on the transfer fixture 33 and transfers it for loading under the swinging action of the transfer swing arm 342. The transfer assembly 34 also includes a fixed base 344 and a linear guide rail 345. One end of the transfer swing arm 342 is rotatably mounted on the fixed base 344. The fixed base 344 is provided with an arc-shaped slide rail 3441. The other end of the transfer swing arm 342 is provided with an oblong hole 343. One end of the linear guide rail 345, the oblong hole 343, and the arc-shaped slide rail 3441 are connected by a connecting shaft 346. The fixed base 344 is provided with a connecting slider 3251. The linear guide rail 345 is slidably connected to the connecting slider 3251. The transfer gripper 341 is located at the other end of the linear guide rail 345. The transfer assembly 34 employs a structure where a transfer swing arm 342 drives a transfer gripper 341. The transfer swing arm 342 provides a large operating radius, allowing the transfer gripper 341 to accurately deliver materials from the transfer fixture 33 to a distant loading station. This structure ensures a wide loading range while also being compact and highly efficient. By setting an arc-shaped slide rail 3441, one end of the transfer swing arm 342 can slide back and forth along the arc-shaped slide rail 3441, driving the linear guide rail 345 and the transfer gripper 341 to move back and forth between the transfer fixture 33 and the loading position. This ensures that the transfer gripper 341 maintains a preset pattern throughout its movement from the transfer fixture 33 to the loading position, thereby ensuring that the snap-fit ​​plastic sheet is placed smoothly, vertically, or at a specific angle accurately at the loading position, achieving high-precision positioning.

[0034] The working process of the fully automatic snap fastener machine is as follows: (1) A batch of loosely arranged snap-fit ​​plastic sheets are poured into the vibrating screen of the conveying assembly 31. After the equipment is started, the vibrating screen works, and the snap-fit ​​plastic sheets are arranged in an orderly manner along the spiral upward queuing track under the action of vibration. When the plastic sheet moves to the end of the queuing track, it will pass through a flipping structure. Under the action of this structure, the plastic sheet will automatically change from a flat position to a standing position with its edge on the ground and enter the subsequent screening track. In the screening track, the plastic sheet moves in the gap formed by the inner track and the outer track. Because the width of the walking gap is specially designed and the top of the inner track is higher than the outer track, only plastic sheets with the protrusion facing the correct direction can maintain stable passage. Plastic sheets with incorrect posture will be automatically rejected during the process. The plastic sheets with the correct posture after screening are conveyed one by one to the end of the feeding track and paused here to complete the feeding preparation.

[0035] (2) The receiving assembly 32 begins to operate. The sliding rail 3241 on the first connecting plate 324 and the slider 3251 on the second connecting plate 325 cooperate to allow the clamping component 326 to accurately grip the pre-positioned snap-fit ​​plastic sheet at the end of the feeding track. Then, driven by the rotation of the rotating shaft 321, the connected swing assembly is activated. The first swing plate 322 and the second swing plate 323 drive the first connecting plate 324 and the second connecting plate 325 to swing, causing the clamping component 326 to carry the snap-fit ​​plastic sheet smoothly from the end of the conveying assembly 31 to above the transfer fixture 33. After the receiving assembly 32 reaches the predetermined position above the transfer fixture 33, the clamping component 326 releases, precisely releasing the snap-fit ​​plastic sheet and placing it in the transfer fixture 33. The transfer assembly 34 performs a loading operation, its transfer gripper 341 moving to the transfer fixture 33 to grip the pre-positioned snap-fit ​​plastic sheet. Then, the transfer arm 342 begins to swing, moving along a fixed trajectory via the linear guide 345 and the transfer gripper 341 at its end. At this time, the disc 21 rotates, and a set of empty snap fastener fixtures 16 rotates to the snap fastener plastic sheet loading position. The snap fastener plastic sheet is precisely transported to the bearing hole 14 at the bottom of the snap fastener fixture, which perfectly matches its shape. The transfer gripper 341 performs a placement action at the loading position, completing one full loading cycle.

[0036] (3) After the plastic sheet of the snap fastener is loaded, the snap fastener tooling group 16 stops precisely at the glue application station as the turntable rotates. The glue application system located next to the station applies glue to the plastic sheet of the snap fastener.

[0037] (4) The snap fastener fixture 16, containing the glued snap fasteners, reaches the film feeding station as the turntable rotates. The film feeding mechanism 7 picks up the pre-cut film and places it on the upper layer of the fixture. The film is precisely placed into the fixture slot 13, with its edge naturally resting on the supporting step. At this moment, the film is suspended directly above the glued snap fastener plastic sheet, and the two are pre-aligned by the fixture.

[0038] (5) The snap fastener assembly 16, which carries the upper and lower components, enters the pressing station. The pressing mechanism located above this station (as shown in the figure, the upper pressing block driven by a cylinder or servo) quickly descends, pressing the film against the snap fastener plastic sheet. At the moment of pressing, the air between the film and the plastic sheet is strongly squeezed and smoothly discharged through the tiny venting grooves pre-set on the supporting steps, effectively avoiding the generation of air bubbles and ensuring that the pressing surfaces are in close and uniform contact, and the adhesive is fully spread.

[0039] (6) After the pressing is completed, the snap-fit ​​workpiece is not removed, but immediately enters the arc-shaped area covered by the second cover plate 23 for the first curing along with the conveyor chain. During this process, the curing light source 4UV-LED array installed on the lower surface of the second cover plate 23 continuously irradiates the workpiece. The ultraviolet light quickly triggers the UV adhesive to undergo a cross-linking and curing reaction. Before the workpiece reaches the unloading station, the firm bonding from liquid to solid is completed. The "pressing-curing" process is seamlessly connected during the process.

[0040] (7) After the first curing, the matte and snap fasteners reach the unloading station as the disc 21 rotates for the last time. The robotic arm of the unloading mechanism 9 extends and takes the finished product out of the bearing hole 14 of the tooling and places it on the feed end 411 of the conveyor belt 41. At the same time, the emptied tooling group continues to circulate with the transmission chain and returns to the matte and snap fastener loading position to start the next work cycle.

[0041] (8) Conveyor belt 41 starts, carrying the snap fasteners forward at a constant speed, distributing them evenly on the surface of conveyor belt 41, ready to receive secondary photocuring. The snap fasteners first enter the irradiation area of ​​the second curing light source A431. This light source is set to high intensity, and the light uniformly covers the product surface through the light-diffusing plate below it, rapidly curing the adhesive. Subsequently, the snap fasteners enter the irradiation area of ​​the second curing light source B432. The snap fasteners are then transported by conveyor belt 41, and finally collected at the discharge end 412.

[0042] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A fully automatic snap fastener machine, characterized in that, The device includes a frame, a turntable mechanism mounted on the frame, and a snap fastener plastic sheet feeding mechanism and a snap fastener secondary light curing mechanism arranged sequentially along the rotation direction of the turntable mechanism. The turntable mechanism includes a disc, a transmission chain that circulates around the disc, and a drive mechanism that drives the disc to rotate. The transmission chain is located on the disc and has snap fastener fixtures on it. The snap fastener plastic sheet feeding mechanism applies adhesive to snap fastener plastic sheets one by one and delivers them to the snap fastener fixtures at the feeding positions. The snap fastener secondary light curing mechanism includes a conveyor belt for conveying snap fasteners and a second curing light source mounted above the conveyor belt. The curing light source is installed below the disc. The conveyor belt has an inlet end and an outlet end. The inlet end corresponds to the unloading station, and the snap fasteners to be secondary light cured fall from the unloading station into the inlet end.

2. The fully automatic snap fastener machine according to claim 1, characterized in that, A connecting plate is connected to the transmission chain. The snap fastener is connected to the transmission chain by being set on the connecting plate. The snap fastener includes a tooling groove, the groove shape of which matches the shape of the film. A support step for supporting the edge of the film is provided around the inner wall of the tooling groove. A support hole for supporting the snap fastener plastic sheet is provided on the bottom of the tooling groove. The shape of the support hole matches the outer contour shape of the snap fastener plastic sheet so that the snap fastener plastic sheet is loaded into the support hole.

3. The fully automatic snap fastener machine according to claim 2, characterized in that, Two adjacent female fasteners arranged along the transmission direction of the transmission chain constitute a set of female fasteners. The two female fasteners in each set are fixedly installed on the same connecting plate and move with the connecting plate as an integral unit.

4. The fully automatic snap fastener machine according to claim 3, characterized in that, The driving mechanism includes a divider, the output shaft of which is connected to the disk to drive the disk and the transmission chain to rotate intermittently, so that each set of male and female fasteners can be aligned and stop at a processing station after rotation.

5. The fully automatic snap fastener machine according to claim 1, characterized in that, The snap fastener plastic sheet feeding mechanism includes: Conveying assembly for conveying snap fastener plastic sheets; The transfer fixture is located between the conveying assembly and the material position on the plastic sheet with the snap fastener. A receiving assembly, located at the end of the conveying assembly, is used to transfer the female buckle plastic sheet conveyed by the conveying assembly to the transfer fixture; The transfer assembly is used to grab the snap-fit ​​plastic sheet from the transfer fixture for feeding. The receiving assembly is located between the conveying assembly and the transfer fixture and reciprocates between the conveying assembly and the transfer fixture.

6. The fully automatic snap fastener machine according to claim 5, characterized in that, The receiving assembly includes a rotating shaft, a swing assembly, and a clamping component. One end of the swing assembly is connected to the rotating shaft, and the other end is connected to the clamping component. The swing assembly includes a first swing plate, a second swing plate, a first connecting plate, and a second connecting plate. The first and second swing plates are located at opposite ends of the rotating shaft and rotate with the shaft. The first and second swing plates are connected by a first connecting plate, and the second connecting plate is located above the first connecting plate and slidably connected to it. The first and second swing plates are respectively provided with a first connecting hole and a second connecting hole. The rotating shaft passes through the first and second connecting holes and connects to the first and second swing plates. The first connecting plate is provided with a slide rail, and the second connecting plate is provided with a slider corresponding to the slide rail. The clamping component is located at the end of the second connecting plate.

7. The fully automatic snap fastener machine according to claim 5, characterized in that, The transfer assembly includes a transfer gripper and a transfer swing arm. The transfer gripper grips the snap-fit ​​plastic sheet located on the transfer fixture and transfers it for loading under the swinging action of the transfer swing arm. The transfer assembly also includes a fixed base and a linear guide rail. One end of the transfer swing arm is rotatably mounted on the fixed base. The fixed base is provided with an arc-shaped slide rail. The other end of the transfer swing arm is provided with an oblong hole. One end of the linear guide rail, the oblong hole, and the arc-shaped slide rail are connected by a connecting shaft. The fixed base is provided with a connecting slider. The linear guide rail is slidably connected to the connecting slider. The transfer gripper is located at the other end of the linear guide rail.

8. The fully automatic snap fastener machine according to claim 1, characterized in that, Along the rotation direction of the turntable mechanism, a glue coating mechanism, a film feeding mechanism, a glue pressing mechanism, and a material unloading mechanism are also arranged in sequence. The glue coating mechanism, film feeding mechanism, glue pressing mechanism, and material unloading mechanism are respectively located between the snap fastener plastic sheet feeding mechanism and the snap fastener secondary light curing mechanism.

9. The fully automatic snap fastener machine according to claim 8, characterized in that, Above the disc is a first cover plate covering the central area of ​​the disc and a second cover plate surrounding the outer perimeter of the disc and covering the area of ​​the conveyor chain. The second cover plate is located between the pressing station and the unloading station. The lower surface of the second cover plate is equipped with a first curing light source for the first curing of the glued snap fastener. After the first curing, the snap fastener enters the feeding end of the conveyor belt through the unloading mechanism for the second curing.

10. The fully automatic snap fastener machine according to claim 1, characterized in that, The second curing light source includes a second curing light source A and a second curing light source B along the conveying direction of the conveyor belt. The distance between the second curing light source A and the unloading position is less than the distance between the second curing light source B and the unloading position. The light intensity of the second curing light source A is greater than the light intensity of the second curing light source B.

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