Anti-theft ring retraction device

Abstract

The application discloses an anti-theft ring contraction device, which comprises a rack, an inlet separation module, a disc-shaped conveying module, a laser heating module, a lifting driving module and a rotating driving module arranged on the rack. The application generates a continuous horizontal heating area efficiently through the laser heating module, cooperates with the precise positioning conveying module, and has adjustable inlet, cam control pressing and self-rotation support, so that the anti-theft ring contraction quality and efficiency are remarkably improved. The lifting height is adjustable, so that different bottle types can be quickly adapted. The fast disassembly mechanism is arranged at multiple positions, so that the maintenance time and the changing time are greatly reduced, and the automation, reliability and economy of the production line are improved as a whole.

Description

Technical Field

[0001] This invention relates to the field of bottle cap manufacturing and processing technology, and in particular to an anti-theft ring shrinking device. Background Technology

[0002] In the current technology, the caps of widely used PET beverage bottles are typically made of PE material. These PE caps include a tamper-evident ring, usually designed with a hook-shaped blade or folded edge structure. However, because PE material differs from the PET bottle body, a special process must be added in the later stages of bottle recycling to separate the tamper-evident ring from the bottle body, increasing processing costs and complexity.

[0003] To simplify the recycling process and improve efficiency, an optimized solution is to standardize the bottle cap material to PET. This way, during subsequent processing, the tamper-evident ring can be treated as part of the same material as the PET bottle body, completely eliminating the need to separate the tamper-evident ring. However, the physical properties of PET material make it difficult to manufacture bottle caps with effective tamper-evident functionality. Therefore, there is an urgent need for a tamper-evident ring shrinking device that can directly fix the tamper-evident ring to the bottle preform, achieving the same tamper-evident effect as PE tamper-evident rings. Summary of the Invention

[0004] According to an embodiment of the present invention, an anti-theft ring shrinking device is provided, comprising a frame, and further comprising a feeding separation module, a disc conveying module, a laser heating module, a lifting drive module and a rotation drive module disposed on the frame;

[0005] The feeding separation module is connected to the disc conveyor module. The feeding separation module separates the containers with bottle caps and conveys them one by one to the disc conveyor module.

[0006] The output of the rotary drive module rotates with the disc conveyor module, driving the disc conveyor module to rotate and convey the container;

[0007] The laser heating module is arranged around the disc-shaped conveyor module to generate multiple interconnected horizontal heating zones. The laser heating module heats and shrinks the anti-theft ring of the container flowing through the horizontal heating zone.

[0008] The disc-shaped conveyor module is surrounded by several pressing mechanisms and several supporting mechanisms, with each pressing mechanism and supporting mechanism corresponding to the other, and the supporting mechanisms supporting the container.

[0009] The lifting drive module is mounted on the disc conveyor module, driving several pressing mechanisms to lift and lower simultaneously, so as to ensure that the anti-theft rings of each container are at the same height when flowing through the horizontal heating zone.

[0010] Furthermore, the feeding separation module includes: a baffle, a mounting frame, an adjustment mechanism, a screw bottle separating mechanism, a screw disassembly and assembly mechanism, and a drive mechanism;

[0011] The distance adjustment mechanism is mounted on the frame, and the baffle and the mounting frame are mounted opposite each other on the distance adjustment mechanism;

[0012] One end of the mounting frame is rotatably mounted on the adjusting mechanism, and the other end of the mounting frame is equipped with a screw disassembly and assembly mechanism.

[0013] The two ends of the screw bottle separating mechanism are rotatably connected to the mounting frame and the screw disassembly and assembly mechanism, respectively, and a conveying channel for the conveying container is formed between the screw bottle separating mechanism and the baffle.

[0014] The drive mechanism is mounted on the mounting frame and drives the screw bottle separating mechanism to rotate, thereby separating and adjusting the spacing of the containers;

[0015] The adjusting mechanism adjusts the distance between the bottle-separating mechanism and the baffle.

[0016] The screw assembly / disassembly mechanism is used for the quick assembly / disassembly of the screw bottle-separating mechanism.

[0017] Furthermore, the screw assembly / disassembly mechanism includes: a connecting block, a first pull rod, a second pull rod, a mounting plate, a latch, and a pair of guide posts;

[0018] The connecting block is fixed to the other end of the mounting frame, and the bottom end of the connecting block is fixed with the first tie rod;

[0019] The adjusting mechanism has an opening to accommodate the first pull rod, with the opening facing away from the screw bottle separating mechanism. Pulling the first pull rod along the opening causes the mounting frame and the screw bottle separating mechanism to rotate away from the baffle.

[0020] The mounting plate is connected to the connecting block via a latch, and the mounting plate is rotatably connected to the screw bottle-separating mechanism.

[0021] A pair of guide posts are set parallel to each other on the mounting plate. One end of the guide post is fixed to the mounting plate, and the other end of the guide post passes through the connecting block.

[0022] The second tie rod is fixed to the mounting plate;

[0023] When disassembling the screw bottle separating mechanism, loosen the lock and pull the second lever to separate the mounting plate and connecting block, thereby separating the screw bottle separating mechanism from the mounting plate.

[0024] Furthermore, the disc conveyor module includes: a feeding dial, a discharging dial, and a main conveyor disc;

[0025] The feeding dial, main conveyor, and unloading dial are connected in sequence, and the feeding dial is connected to the feeding separation module.

[0026] The laser heating module is arranged around the main conveyor plate, and several positioning mechanisms are arranged around the main conveyor plate.

[0027] The output of the rotary drive module is connected to the feeding dial, the unloading dial, and the main conveyor plate, driving the feeding dial, the unloading dial, and the main conveyor plate to rotate and convey the container.

[0028] Furthermore, the feeding dial and the unloading dial have the same structure, both including: a feeding dial, a feeding baffle and a quick release mechanism;

[0029] The feeding dial is connected to the output of the rotary drive module through multiple quick-release mechanisms;

[0030] The feeding disc has several arc-shaped openings evenly spaced around its circumference, which accommodate and position the container.

[0031] The feeding baffle is arc-shaped and is installed on the frame through multiple quick-release mechanisms. A feeding channel is formed between the feeding baffle and the feeding dial, and the container is conveyed in the feeding channel.

[0032] Furthermore, the quick-release mechanism includes: a pivot, a handle, a limit ring, an elastic element, a pin, and a screw thread;

[0033] The spiral buckle is fixed to the output end of the rotary drive module. The spiral buckle is hollow inside and has two opposing guide grooves. The top surface of the spiral buckle has two opposing openings. The two guide grooves extend spirally from the two openings to the wall surface of the spiral buckle.

[0034] A rotating handle is fixed at the top of the rotating shaft, a pin is fixed at the bottom of the rotating shaft, the pin is perpendicular to the rotating shaft, a limiting ring is fixed in the middle of the rotating shaft, the rotating shaft passes through the feeding dial and is connected to the spiral buckle by the pin, and the two ends of the pin are respectively inserted into two guide grooves;

[0035] The elastic element is mounted on the rotating shaft and connected to the limiting ring;

[0036] When engaged, the two ends of the pin are inserted into the two openings from top to bottom. The rotating shaft drives the pin to rotate and move downward along the two guide grooves to engage the rotating shaft and the screw thread. The rotating shaft drives the pin to rotate and move upward along the two guide grooves to the two openings to release the rotating shaft and the screw thread.

[0037] Furthermore, the main conveyor disc includes: a first drive shaft, a first rotary disc, a second rotary disc, a cam disc, and several rollers;

[0038] The first drive shaft is connected to the output end of the rotary drive module;

[0039] The first and second rotating disks are mounted on the first drive shaft and rotate with the first drive shaft.

[0040] The cam disk is fitted onto the first drive shaft and connected to the lifting drive module. The cam disk is provided with a cam-shaped raceway.

[0041] Several support mechanisms are distributed along the circumference of the first rotating disk, and several pressing mechanisms are distributed along the circumference of the second rotating disk;

[0042] Several rollers are connected to several pressing mechanisms in a corresponding manner and are distributed along the circumference of the cam disk, and can move along the cam-shaped raceway.

[0043] Furthermore, the lifting drive module includes: a mounting bracket, a first drive motor, a helical gear transmission mechanism, a lead screw, and a guide frame;

[0044] The mounting bracket is fixed on the frame, the guide bracket is connected to the cam plate, and the two ends of the guide bracket are slidably mounted on the mounting bracket;

[0045] The first drive motor and helical gear transmission mechanism are mounted on the mounting bracket;

[0046] The lead screw passes through the guide frame and the cam plate, and the output end of the lead screw is connected to the guide frame.

[0047] The output end of the first drive motor is connected to the helical gear transmission mechanism, which is connected to the lead screw. The first drive motor drives the lead screw to rotate through the helical gear transmission mechanism, thereby driving the guide frame and cam plate to rise and fall.

[0048] Furthermore, the rotary drive module includes: a second drive motor, a first gear, a second gear, a third gear, a fourth gear, a second drive shaft, and a third drive shaft;

[0049] The second drive motor is mounted on the frame, and the output end of the second drive motor is connected to the first gear.

[0050] The first gear, the second gear, the third gear, and the fourth gear mesh with each other in sequence;

[0051] The second gear is mounted on the second drive shaft, which is connected to the feeding dial.

[0052] The third gear is mounted on the main conveyor plate;

[0053] The fourth gear is mounted on the third drive shaft, which is connected to the feeding dial.

[0054] The second drive motor drives the first gear to rotate, thereby causing the feeding dial, the main conveyor disc, and the unloading dial to rotate.

[0055] Furthermore, the laser heating module includes: multiple sets of laser heating mechanisms and several laser reflector blocks;

[0056] Several laser reflective blocks are distributed along the circumference of the disc-shaped conveying module and correspond one-to-one with several supporting mechanisms. The height of the laser reflective blocks corresponds to the height of the anti-theft ring.

[0057] Multiple sets of laser heating mechanisms are arranged around the disc-shaped conveyor module, with adjacent laser heating mechanisms connected together;

[0058] Each laser heating mechanism includes: a laser emitter, a reflector, a first lens, a second lens, a polygonal mirror, a driving component, and a conical cover;

[0059] The laser emitter and the conical cover are mounted on the frame, with the conical cover opposite the anti-theft ring;

[0060] The laser emitter emits a laser beam, which is reflected by a mirror to a multifaceted mirror. The multifaceted mirror then reflects the laser beam again into the conical cover to heat and shrink the anti-theft ring.

[0061] The first and second lenses are positioned between the reflecting mirror and the polygonal mirror to focus the laser beam.

[0062] The driving component drives the multifaceted mirror to rotate, creating a horizontal heating zone;

[0063] The laser reflector block reflects the laser beam directed at it back to the anti-theft ring.

[0064] According to the embodiments of the present invention, the anti-theft ring shrinking device efficiently generates a continuous horizontal heating zone through a laser heating module, and is combined with a precise positioning conveying module, including adjustable distance feeding, cam-controlled pressing and self-rotation support, which significantly improves the shrinking quality and efficiency of the anti-theft ring. The adjustable lifting height can quickly adapt to different bottle types, and multiple quick-release mechanisms greatly reduce maintenance time and changeover time, thus improving the automation, reliability and economy of the production line as a whole.

[0065] It should be understood that both the foregoing general description and the following detailed description are exemplary and intended to provide further illustration of the claimed technology. Attached Figure Description

[0066] Figure 1 This is a schematic diagram of the anti-theft ring shrinkage device according to an embodiment of the present invention;

[0067] Figure 2 This is a top view schematic diagram of the anti-theft ring retraction device according to an embodiment of the present invention;

[0068] Figure 3 This is a schematic diagram of the feeding separation module of the anti-theft ring shrinkage device according to an embodiment of the present invention;

[0069] Figure 4 This is a cross-sectional schematic diagram of the screw bottle-separating mechanism of the anti-theft ring shrinking device according to an embodiment of the present invention;

[0070] Figure 5 This is a schematic diagram of the adjusting mechanism of the anti-theft ring retraction device according to an embodiment of the present invention;

[0071] Figure 6 This is a schematic diagram of the screw assembly / disassembly mechanism of the anti-theft ring retraction device according to an embodiment of the present invention;

[0072] Figure 7 This is a schematic diagram of the feeding dial of the anti-theft ring shrinkage device according to an embodiment of the present invention;

[0073] Figure 8 This is a cross-sectional schematic diagram of the quick-release mechanism of the anti-theft ring retraction device according to an embodiment of the present invention;

[0074] Figure 9 This is a schematic diagram of the spiral buckle of the anti-theft ring shrinking device according to an embodiment of the present invention;

[0075] Figure 10 This is a schematic diagram of the main conveyor tray of the anti-theft ring shrinkage device according to an embodiment of the present invention;

[0076] Figure 11 This is a cross-sectional schematic diagram of the main conveyor tray of the anti-theft ring shrinkage device according to an embodiment of the present invention;

[0077] Figure 12 This is a schematic diagram of the pressing mechanism of the anti-theft ring retraction device according to an embodiment of the present invention;

[0078] Figure 13 This is a cross-sectional schematic diagram of the support mechanism of the anti-theft ring retraction device according to an embodiment of the present invention;

[0079] Figure 14 This is a schematic diagram of the laser heating module of the anti-theft ring shrinking device according to an embodiment of the present invention;

[0080] Figure 15 This is a schematic diagram of the rotation drive module of the anti-theft ring shrinkage device according to an embodiment of the present invention.

[0081] Reference numeral: Rack 1;

[0082] Feed separation module 2, baffle 21, mounting frame 22, spacing adjustment mechanism 23, screw bottle separating mechanism 24, screw disassembly and assembly mechanism 25, drive mechanism 26; support seat 231, positive and negative threaded rods 232, guide rod 233; connecting block 251, first pull rod 252, second pull rod 253, mounting plate 254, lock 255, guide post 256;

[0083] Disc conveyor module 3, feeding dial 31, unloading dial 33, main conveyor disc 32; feeding dial 341, feeding baffle 342, quick release mechanism 35; rotating shaft 351, rotating handle 352, limit ring 353, elastic element 354, pin 355, spiral buckle 356, guide groove 3561, spiral opening 3562; first drive shaft 321, first rotating disc 322, second rotating disc 323, cam disc 324, cam-type raceway 3241, roller 325, pressing mechanism 326, support mechanism 327; support seat 3271, servo motor 3272, connecting seat 3273, first spring 3274, linear bearing 3275, connecting rod 3276; mounting seat 3261, pressure rod 3262, pressure seat 3263;

[0084] Laser heating module 4, laser reflector block 41, laser emitter 42, reflector 43, first lens 44, second lens 45, multifaceted mirror 46, driving component 47, conical cover 48;

[0085] Lifting drive module 5, mounting bracket 51, first drive motor 52, helical gear transmission mechanism 53, lead screw 54, guide frame 55;

[0086] Rotary drive module 6, second drive motor 61, first gear 62, second gear 63, third gear 64, fourth gear 65, second drive shaft 66, and third drive shaft 67. Detailed Implementation

[0087] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, further illustrating the present invention.

[0088] First, combine Figures 1-15 The present invention describes an anti-theft ring shrinking device, which is used to heat and shrink the anti-theft ring of a bottle cap so that the anti-theft ring is attached to the container. It has a wide range of applications.

[0089] like Figures 1-15 As shown, the anti-theft ring shrinking device of this embodiment includes a frame 1, and further includes a feeding separation module 2, a disc conveying module 3, a laser heating module 4, a lifting drive module 5, and a rotation drive module 6 disposed on the frame 1. This invention is applicable to all PET bottle caps that require heat shrinking.

[0090] Specifically, such as Figures 1-2 As shown, in this embodiment, the feeding separation module 2, the disc conveying module 3, and the external conveyor are connected. The conveyor transports containers with bottle caps. The feeding separation module 2 separates the containers and adjusts the spacing between them, and then transports them one by one to the disc conveying module 3 for feeding.

[0091] Specifically, such as Figures 3-6As shown, in this embodiment, the feeding separation module 2 includes: a baffle 21, a mounting frame 22, an adjusting mechanism 23, a screw bottle separating mechanism 24, a screw disassembly and assembly mechanism 25, and a drive mechanism 26. The adjusting mechanism 23 is mounted on the frame 1, and the baffle 21 and the mounting frame 22 are respectively mounted on the adjusting mechanism 23. The adjusting mechanism 23 adjusts the distance between the screw bottle separating mechanism 24 and the baffle 21. In this embodiment, the adjusting mechanism 23 includes: a pair of support seats 231 respectively fixed to the baffle 21 and the mounting frame 22, a positive and negative threaded rod 232 connecting the pair of support seats 231, and a guide rod 233 guiding the movement direction of the pair of support seats 231. The distance between the pair of support seats 231 can be adjusted by turning the positive and negative threaded rod 232, thereby realizing the adjustment of the distance between the baffle 21 and the mounting frame 22. Section; One end of the mounting frame 22 is rotatably mounted on the spacing adjustment mechanism 23, and the other end of the mounting frame 22 is provided with a screw disassembly and assembly mechanism 25; both ends of the screw bottle separating mechanism 24 are rotatably connected to the mounting frame 22 and the screw disassembly and assembly mechanism 25 respectively. In this embodiment, both ends of the screw bottle separating mechanism 24 are fastened to the rotating shaft 351 on the mounting frame 22 and the rotating shaft 351 on the screw disassembly and assembly mechanism 25 respectively, which facilitates quick disassembly and assembly. A conveying channel for conveying containers is formed between the screw bottle separating mechanism 24 and the baffle 21; the drive mechanism 26 is mounted on the mounting frame 22 and drives the screw bottle separating mechanism 24 to rotate in order to separate and adjust the spacing of the containers. In this embodiment, the drive mechanism 26 adopts a servo motor combined with a synchronous belt drive mechanism; the screw disassembly and assembly mechanism 25 is used for quick disassembly and assembly of the screw bottle separating mechanism 24.

[0092] Furthermore, such as Figure 6As shown, in this embodiment, the screw assembly / disassembly mechanism 25 includes: a connecting block 251, a first pull rod 252, a second pull rod 253, a mounting plate 254, a latch 255, and a pair of guide posts 256; the connecting block 251 is fixed to the other end of the mounting frame 22, and the first pull rod 252 is fixed to the bottom end of the connecting block 251; the adjusting mechanism 23 has an opening 234 for accommodating the first pull rod 252, the opening facing away from the screw bottle separating mechanism 24, and pulling the first pull rod 252 along the opening causes the mounting frame 22 and the screw bottle separating mechanism 24 to rotate away from the baffle 21; the mounting plate 254 is connected to the connecting block 251 through the latch 255, and the mounting plate 254 is rotatably connected to the screw bottle separating mechanism 24; a pair of guide posts 256 are arranged parallel to each other on the mounting plate. On plate 254, one end of guide post 256 is fixed to mounting plate 254, and the other end of guide post 256 passes through connecting block 251; second pull rod 253 is fixed to mounting plate 254; when disassembling screw bottle separating mechanism 24, first pull rod 252 is pulled along the opening, so that mounting frame 22 and screw bottle separating mechanism 24 rotate outward together, providing space for disassembling screw bottle separating mechanism 24, then release lock 255, so that connecting block 251 and mounting plate 254 are separated, and finally pull second pull rod 253, so that mounting plate 254 and screw bottle separating mechanism 24 are disengaged from their fastening point, and then the other end of screw bottle separating mechanism 24 is disengaged from mounting frame 22, completing the disassembly of screw bottle separating mechanism 24. When installing screw bottle separating mechanism 24, the above operations are performed in reverse.

[0093] Specifically, such as Figures 7-13 As shown, in this embodiment, the output end of the rotary drive module 6 rotates with the disc conveyor module 3, driving the disc conveyor module 3 to rotate and convey the container; the disc conveyor module 3 is surrounded by a plurality of pressing mechanisms 326 and a plurality of supporting mechanisms 327, with each pressing mechanism 326 and supporting mechanism 327 corresponding one-to-one, and the supporting mechanism 327 supporting the container; the disc conveyor module 3 includes: a feeding dial 31, a discharging dial 33, and a main conveyor disc 32; the feeding dial 31, the main conveyor disc 32, and the discharging dial 33 are connected in sequence. The feeding dial 31 is connected to the feeding separation module 2; the laser heating module 4 is arranged around the main conveyor plate 32, and several positioning mechanisms are arranged around the main conveyor plate 32; the output end of the rotation drive module 6 is connected to the feeding dial 31, the unloading dial 33 and the main conveyor plate 32, driving the feeding dial 31, the unloading dial 33 and the main conveyor plate 32 to rotate and convey the container. The feeding dial 31 and the unloading dial 33 are used for loading and unloading the container, while the main conveyor plate 32 fixes the container and conveys it to the laser heating module 4 for heating.

[0094] Furthermore, such as Figure 7As shown, in this embodiment, the feeding dial 31 and the unloading dial 33 have the same structure, which simplifies installation. Both include: a feeding dial 341, a feeding baffle 342, and a quick-release mechanism 35. The feeding dial 341 is connected to the output end of the rotary drive module 6 through multiple quick-release mechanisms 35, which enable quick installation, replacement, and disassembly of the feeding dial 341. The feeding dial 341 has several arc-shaped openings 343 evenly spaced along its circumference, which accommodate and position containers. The feeding baffle 342 is arc-shaped and is mounted on the frame 1 through multiple quick-release mechanisms 35. A feeding channel is formed between the feeding baffle 342 and the feeding dial 341. The feeding channel is arc-shaped, which facilitates the connection between the linear infeed separation module 2 and the annular main conveyor 32. Containers are conveyed in the feeding channel, and the rotary drive module 6 drives the feeding dial 341 to rotate, thereby conveying the containers.

[0095] Furthermore, such as Figures 8-9 As shown, in this embodiment, taking the quick-release mechanism 35 on the feeding dial 341 as an example, the quick-release mechanism 35 includes: a rotating shaft 351, a rotating handle 352, a limiting ring 353, an elastic element 354, a pin 355, and a spiral buckle 356; the spiral buckle 356 is fixed to the output end of the rotary drive module 6. The spiral buckle 356 is a cylinder with a hollow interior, used for insertion into the bottom of the rotating shaft 351. The spiral buckle 356 has two opposing guide grooves 3561, and the top surface of the spiral buckle 356 has two opposing spiral openings 3562. The two guide grooves 3561 respectively open from two... The spiral opening 3562 extends spirally to the wall of the spiral buckle 356; the top of the rotating shaft 351 is fixed with a rotating handle 352, and the bottom of the rotating shaft 351 is fixed with a pin 355. The pin 355 is perpendicular to the rotating shaft 351, that is, the pin 355 and the rotating shaft 351 form a cross shape. The middle of the rotating shaft 351 is fixed with a limiting ring 353. The rotating shaft 351 passes through the feeding dial 341 and is fastened to the spiral buckle 356 through the pin 355. The two ends of the pin 355 are respectively inserted into two guide grooves 3561; the elastic element 354 is sleeved on the rotating shaft 351 and connected to the limiting ring 353.

[0096] Specifically, the rotating shaft 351 can move up and down relative to the feeding dial 341. The rotating shaft 351 and the components fixed on the rotating shaft 351 are integrated with the feeding dial 341. The spiral buckle 356 is fixed to the feeding dial 341 at the installation location by screws and other fasteners. Due to the presence of the pin 355, the rotating shaft 351 will not fall off the feeding dial 341. When installing the feeding dial 341, the rotating shaft 351 moves downward, inserting both ends of the pin 355 from top to bottom into the two spiral openings 3562. The rotating shaft 351 rotates and moves downward, driving the pin 355 along the two guides. Rotate the pin 355 downwards along the guide groove 3561 until it abuts against the bottom of the guide groove 3561, thus engaging with the spiral buckle 356. At this time, the handle 352 abuts against the top surface of the feeding disc 341, and the elastic element 354 abuts against the spiral buckle 356, completing the installation of the feeding disc 341. When disassembling the feeding disc 341, the shaft 351 rotates in the opposite direction and moves upwards while rotating, driving the pin 355 to rotate upwards along the two guide grooves 3561 to the two spiral openings 3562. Then, the shaft 351 is pulled out of the spiral buckle 356, thus loosening the screw buckle 356.

[0097] In this embodiment, the quick-release mechanism 35 is not limited to the quick assembly and disassembly of the feeding dial 341 and the feeding baffle 342, but can also be used in mechanisms such as the baffle 21 in the feeding separation module 2 that require quick assembly and disassembly.

[0098] Specifically, such as Figures 10-13As shown, in this embodiment, the main conveying disk 32 includes: a first drive shaft 321, a first rotating disk 322, a second rotating disk 323, a cam disk 324, and several rollers 325; the first drive shaft 321 is connected to the output end of the rotary drive module 6, and the rotary drive module 6 drives the first drive shaft 321 to rotate; the first rotating disk 322 and the second rotating disk 323 are sleeved on the first drive shaft 321 and rotate with the first drive shaft 321; the cam disk 324 is sleeved on the first drive shaft 321 and connected to the lifting drive module 5, the cam disk 324 is provided with a cam-shaped raceway 3241, and the cam disk 324 does not rotate with the first drive shaft 321; several support mechanisms 327 are distributed along the circumference of the first rotating disk 322, and several pressing mechanisms 326 are distributed along the second rotating disk. The cam disk 324 is circumferentially distributed with several rollers 325, each corresponding to a number of pressing mechanisms 326, and distributed along the circumference of the cam disk 324. These rollers can move along the cam-shaped raceway 3241, allowing the corresponding pressing mechanisms 326 to reciprocate up and down. At the loading and unloading points of the main conveyor disk 32, the pressing mechanisms 326 move upwards along the cam-shaped raceway 3241, moving away from the support mechanism 327 to facilitate loading and unloading of containers. On the side where the main conveyor disk 32 connects to the laser heating module 4, the pressing mechanisms 326 move downwards along the cam-shaped raceway 3241, approaching the support mechanism 327 to press and position the container, preventing it from shifting. The support mechanism 327 cooperates with the corresponding pressing mechanism 326 to position the container, ensuring it does not shift during rotation. In this embodiment, the number of support mechanisms and pressing mechanisms is the same, 24 in total, but this number can be changed according to production needs.

[0099] like Figure 13 As shown, in this embodiment, the support mechanism 327 includes: a support base 3271, a servo motor 3272, a connecting base 3273, multiple first springs 3274, a linear bearing 3275, and a connecting rod 3276. The support base 3271 is used to place a container. The support base 3271 is slidably connected to the connecting base 3273 via the linear bearing 3275 and the connecting rod 3276. The servo motor 3272 drives the support base 3271 to rotate via the connecting base 3273, causing the container to rotate on its own axis while revolving with the first rotating disk 322, thus ensuring the anti-theft ring completes its full circle. It can perform laser heating and shrinkage. The two ends of the first spring 3274 are respectively connected to the bottom of the support 3271 and the top of the connecting seat 3273 to form a floating mechanism, so as to realize the up and down floating of the support 3271. Since the containers may have size differences and the laser heating module 4 generates a horizontal heating area, in order to ensure that each anti-theft ring is heated, the height of the anti-theft rings needs to be consistent. The lifting drive module 5 makes the pressing distance of the pressing mechanism 326 the same, and the size error of the bottle cap is extremely small. With the help of the floating mechanism, the anti-theft ring connected to the bottle cap can be placed at a predetermined height.

[0100] like Figure 12 As shown, in this embodiment, the pressing mechanism 326 includes: a mounting base 3261, a pressing rod 3262, and a pressing seat 3263; the mounting base 3261 is fixed on the second rotating disk 323, the pressing rod 3262 passes through the mounting base 3261 and can slide up and down, the pressing seat 3263 is fixed at the bottom end of the pressing rod 3262, the pressing rod 3262 is connected to the roller 325, and a second spring is also sleeved on the pressing rod 3262. As the second rotating disk 323 rotates, it drives the mounting base 3261 and the pressing rod 3262 to rotate, thereby driving the roller 325 to rotate, so that the roller 325 moves along the cam-shaped rolling circumference while driving the pressing rod 3262 to move up and down, so that the pressing mechanism 326 can perform up and down reciprocating motion.

[0101] Specifically, such as Figure 15 As shown, in this embodiment, the rotary drive module 6 includes: a second drive motor 61, a first gear 62, a second gear 63, a third gear 64, a fourth gear 65, a second drive shaft 66, and a third drive shaft 67. The second drive motor 61 is mounted on the frame 1, and its output end is connected to the first gear 62. The first gear 62, second gear 63, third gear 64, and fourth gear 65 mesh with each other sequentially. The second gear 63 is sleeved on the second drive shaft 66, which is connected to the feeding disc 31. The third gear 64 is sleeved on the main conveyor disc 32. The fourth gear 65 is sleeved on the third drive shaft 67, which is connected to the unloading disc 33. The second drive motor 61 drives the first gear 62 to rotate, thereby driving the feeding disc 31, the main conveyor disc 32, and the unloading disc 33 to rotate. By using a drive motor in conjunction with a transmission mechanism of multiple gears, the feeding disc 31, the main conveyor disc 32, and the unloading disc 33 can be driven to rotate simultaneously, which is simple and efficient.

[0102] Specifically, such as Figure 14As shown, in this embodiment, the laser heating module 4 is arranged around the disc-shaped conveying module 3, generating multiple interconnected horizontal heating zones. The laser heating module 4 heats and contracts the anti-theft ring of the container flowing through the horizontal heating zone. The laser heating module 4 has an adjustable height function according to different bottle shapes. The laser heating module 4 includes: multiple sets of laser heating mechanisms and several laser reflective blocks 41. The several laser reflective blocks 41 are distributed along the circumference of the disc-shaped conveying module 3 and correspond one-to-one with several support mechanisms 327. The height of the laser reflective blocks 41 corresponds to the height of the anti-theft ring, and the opposite surface of the laser reflective blocks 41 and the container is wavy or folded. In the linear configuration, because the length of the horizontally heated laser zone is greater than the diameter of the anti-theft ring, some laser lines will not reach the anti-theft ring, resulting in energy waste. By using the laser reflector block 41 fixed on the first rotating disk 322, the laser lines that cannot reach the anti-theft ring can be reflected to the inside of the anti-theft ring, thereby heating and shrinking the anti-theft ring and reducing energy waste. In this embodiment, the first rotating disk 322 opposite to the horizontally heated zone is coated with a heat-insulating coating for protection. Multiple sets of laser heating mechanisms are arranged around the disc-shaped conveying module 3, and adjacent laser heating mechanisms are connected to ensure continuity.

[0103] Each laser heating mechanism includes: a laser emitter 42, a reflector 43, a first lens 44, a second lens 45, a polygonal mirror 46, a drive unit 47, and a conical cover 48. The laser emitter 42 and the conical cover 48 are mounted on the frame 1. The conical cover 48 is opposite to the anti-theft ring, and the inner wall of the conical cover 48 is also coated with a heat-insulating coating for protection. The laser emitter 42 emits a laser beam, which is reflected by the reflector 43 to the polygonal mirror 46. The polygonal mirror 46 then reflects the laser beam back into the conical cover 48 to heat and shrink the anti-theft ring. The reflector 43 has a 45° angled surface to change the direction of the laser beam. The first lens 44 and the second lens 45 are positioned between the reflector 43 and the polygonal mirror 46 for focusing the laser beam. The drive unit 47 drives the polygonal mirror 46 to rotate, thereby generating a horizontal heating zone. In this embodiment, the polygonal mirror 46 is a 16-faceted mirror. The laser reflector block 41 reflects the laser beam directed at it back to the anti-theft ring. In this embodiment, a laser emitter 42 capable of emitting CO2 laser is used. Since PET material has good heat absorption, the number of laser emitters 42 can be increased or decreased according to actual needs, and the power can be changed according to production requirements.

[0104] Specifically, such as Figure 10As shown, in this embodiment, the lifting drive module 5 is mounted on the disc-shaped conveying module 3, driving several pressing mechanisms 326 to lift and lower simultaneously, so as to ensure that the height of the anti-theft rings of each container is consistent when flowing through the horizontal heating zone. The lifting drive module 5 includes: a mounting frame 51, a first drive motor 52, a helical gear transmission mechanism 53, a lead screw 54, and a guide frame 55; the mounting frame 51 is fixed on the frame 1, the guide frame 55 is connected to the cam disc 324, and the two ends of the guide frame 55 are slidably mounted on the mounting frame 51. The mounting frame 51 provides guidance for the up and down movement of the guide frame 55, while restricting the rotation of the guide frame 55; the first drive motor 52 and the helical gear transmission mechanism 53 are mounted on the mounting frame 51, and the helical gear transmission mechanism 53 changes the driving direction and improves stability. The lead screw 54 passes through the guide frame 55 and the cam disk 324, and the output end of the lead screw 54 is connected to the guide frame 55. The output end of the first drive motor 52 is connected to the helical gear transmission mechanism 53, which is connected to the lead screw 54. The first drive motor 52 drives the lead screw 54 to rotate through the helical gear transmission mechanism 53, thereby driving the guide frame 55 and the cam disk 324 to rise and fall. Through this external lifting drive module 5, the cam disk 324 can be raised and lowered as a whole to adapt to bottle shapes of different heights, making it faster and more convenient to use.

[0105] Working principle: An external conveyor transports containers with bottle caps to the feeding and separating module 2. The drive mechanism 26 of the feeding and separating module 2 drives the screw bottle separating mechanism 24 to rotate, so that the containers are transported between the screw bottle separating mechanism 24 and the baffle 21 in one go, completing the separation of the containers. The feeding and separating module 2 transports the containers one by one to the feeding dial 31. The rotation drive module 6 drives the containers on the feeding dial 31 to rotate and be transported to the support mechanism 327 of the main conveying plate 32. The lifting drive module 5 drives the cam plate 324 and several pressing mechanisms 326 to rise or fall to a preset height as a whole. As the first drive shaft 321 drives the second rotating plate 323 to rotate, the several pressing mechanisms 326 rotate accordingly. The roller 325 moves from the proximal end to the remote end of the cam-type raceway 3241, that is, the roller 325 moves in a circular motion. While moving downwards, the pressure rod 3262 moves downwards, causing the pressure seat 3263 to press the container down. The anti-theft ring of the container moves with the first rotating disk 322 and the second rotating disk 323 to the horizontal heating zone for heating and shrinkage. The servo motor 3272 at the bottom of the support seat 3271 drives the support seat 3271 and the container to rotate, changing the heating position of the anti-theft ring so that the entire anti-theft ring is heated. When the anti-theft ring leaves the horizontal heating zone, the shrinkage of the anti-theft ring is completed. The main conveyor disk 32 conveys the container to the unloading disc 33. At this time, the roller 325 moves from the remote end of the cam-type raceway 3241 to the near end, that is, the roller 325 moves upwards while moving in a circular motion, driving the pressing mechanism 326 to move upwards, so that the pressure sleeve is released from the container. The containers are discharged one by one to the conveyor through the unloading disc 33.

[0106] The present invention has the following beneficial effects:

[0107] 1. The adjusting mechanism 23 and the screw bottle-separating mechanism 24 of the feeding and separating module 2 can quickly adjust the width of the conveying channel and achieve precise separation and spacing adjustment of bottle cap containers. This allows the device to easily adapt to bottle cap containers of different sizes, ensuring smooth and accurate feeding;

[0108] 2. The laser heating module 4, in conjunction with the laser reflector block 41, can generate a continuous horizontal heating zone and effectively reflect the scattered laser light to the inside of the anti-theft ring. This significantly improves the utilization rate of laser energy, reduces energy waste, and ensures that the entire anti-theft ring is heated evenly and reliably retracts.

[0109] 3. The linkage mechanism of the cam plate 324 of the main conveyor plate 32 and the floating support mechanism 327 can precisely control the lifting and lowering sequence of the pressing mechanism 326 and firmly press the bottle cap container at the heating station. Combined with the rotation function of the support mechanism 327, this ensures that the anti-theft ring is accurately positioned and without deviation during revolution and laser heating, and is heated evenly in 360°, guaranteeing shrinkage quality and process stability.

[0110] 4. The screw disassembly and assembly mechanism 25 and the quick-release mechanism 35 (applied to the feeding disc 341, baffle 21, etc.) enable the rapid disassembly and assembly of key components (such as the screw bottle separating mechanism 24 and the feeding disc 341). This greatly reduces the time required for equipment maintenance, bottle type change, or cleaning, and significantly improves the availability and ease of operation of the equipment.

[0111] 5. The single drive motor of the rotary drive module 6, in conjunction with the gear set, can simultaneously drive the loading disc 31, the main conveyor disc 32, and the unloading disc 33 to rotate synchronously. This simplifies the transmission structure, improves drive efficiency and reliability, and ensures the coordination and consistency of the entire conveying process.

[0112] 6. The lifting drive module 5 can lift the cam plate 324 and the pressing mechanism 326 to a preset height via the lead screw 54 and helical gear mechanism. This allows the device to quickly adapt to bottle shapes of different heights, ensuring that the anti-theft rings of all bottle caps are accurately positioned in the optimal position within the laser horizontal heating zone.

[0113] Above, refer to Figures 1-15 The present invention describes an anti-theft ring shrinking device, which efficiently generates a continuous horizontal heating zone through a laser heating module and is combined with a precise positioning conveying module, including adjustable distance feeding, cam-controlled pressing and self-rotation support, which significantly improves the shrinking quality and efficiency of the anti-theft ring. The adjustable lifting height can quickly adapt to different bottle types, and multiple quick-release mechanisms greatly reduce maintenance time and changeover time, thus improving the automation, reliability and economy of the production line as a whole.

[0114] It should be noted that, in this specification, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes that element.

[0115] Although the present invention has been described in detail through the preferred embodiments above, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above description. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. An anti-theft ring retraction device, comprising a frame, characterized in that, It also includes a feeding separation module, a disc conveyor module, a laser heating module, a lifting drive module, and a rotation drive module, all mounted on the frame. The feeding separation module is connected to the disc conveying module. The feeding separation module separates the containers containing bottle caps and conveys them one by one to the disc conveying module. The output end of the rotary drive module is connected to the disc conveyor module, driving the disc conveyor module to rotate and convey the container; The laser heating module is arranged around the disc-shaped conveyor module, generating multiple interconnected horizontal heating zones. The laser heating module heats and shrinks the anti-theft ring of the container flowing through the horizontal heating zone. The disc-shaped conveying module is surrounded by a plurality of pressing mechanisms and a plurality of supporting mechanisms, the plurality of pressing mechanisms and the plurality of supporting mechanisms being one-to-one, and the supporting mechanisms supporting the container; The lifting drive module is mounted on the disc-shaped conveyor module and drives the plurality of pressing mechanisms to lift and lower simultaneously, so as to ensure that the anti-theft rings of each container are at the same height when they flow through the horizontal heating zone. The disc conveyor module includes: a feeding dial, a discharging dial, and a main conveyor disc; The feeding dial, the main conveyor dial, and the unloading dial are connected in sequence, and the feeding dial is connected to the feeding separation module; The laser heating module is arranged around the main conveyor plate, and the plurality of positioning mechanisms are arranged around the main conveyor plate; The output end of the rotary drive module is connected to the feeding dial, the unloading dial and the main conveying plate, driving the feeding dial, the unloading dial and the main conveying plate to rotate and convey the container. The feeding dial and the unloading dial have the same structure, both including: a feeding dial, a feeding baffle and a quick release mechanism; The feeding dial is connected to the output end of the rotary drive module through multiple quick-release mechanisms; The feeding disc has several arc-shaped openings evenly spaced along its circumference, which accommodate and position the container. The feeding baffle is arc-shaped and is mounted on the frame via multiple quick-release mechanisms. A feeding channel is formed between the feeding baffle and the feeding dial, and the container is conveyed within the feeding channel. The quick-release mechanism includes: a rotating shaft, a rotating handle, a limiting ring, an elastic element, a pin, and a spiral buckle; The spiral buckle is fixed to the output end of the rotary drive module. The spiral buckle is hollow inside and has two opposing guide grooves. The top surface of the spiral buckle has two opposing openings. The two guide grooves extend spirally from the two openings to the wall surface of the spiral buckle. The top of the rotating shaft is fixed to the rotating handle, the bottom of the rotating shaft is fixed to the pin, the pin is perpendicular to the rotating shaft, the middle of the rotating shaft is fixed to the limiting ring, the rotating shaft passes through the feeding dial and is fastened to the spiral buckle through the pin, and the two ends of the pin are respectively inserted into the two guide grooves; The elastic element is sleeved on the rotating shaft and connected to the limiting ring; When engaged, the two ends of the pin are inserted into the two openings from top to bottom. The rotating shaft rotates and drives the pin to rotate and move downward along the two guide grooves to engage the rotating shaft and the spiral buckle. When disengaged, the rotating shaft drives the pin to rotate and move upward along the two guide grooves to the two openings to disengage the rotating shaft and the spiral buckle.

2. The anti-theft ring retraction device as described in claim 1, characterized in that, The feeding and separating module includes: a baffle, a mounting frame, an adjusting mechanism, a screw bottle separating mechanism, a screw disassembly and assembly mechanism, and a drive mechanism; The adjusting mechanism is mounted on the frame, and the baffle and the mounting frame are mounted opposite each other on the adjusting mechanism; One end of the mounting frame is rotatably mounted on the adjusting mechanism, and the other end of the mounting frame is provided with the screw disassembly and assembly mechanism; The two ends of the screw bottle separating mechanism are rotatably connected to the mounting frame and the screw disassembly and assembly mechanism, respectively, and a conveying channel for the conveying container is formed between the screw bottle separating mechanism and the baffle. The drive mechanism is mounted on the mounting frame and drives the screw bottle-separating mechanism to rotate, thereby separating and adjusting the spacing of the containers; The adjusting mechanism adjusts the distance between the screw bottle-separating mechanism and the baffle. The screw assembly / disassembly mechanism is used for the quick assembly / disassembly of the screw bottle-separating mechanism.

3. The anti-theft ring retraction device as described in claim 2, characterized in that, The screw assembly / disassembly mechanism includes: a connecting block, a first pull rod, a second pull rod, a mounting plate, a latch, and a pair of guide posts; The connecting block is fixed to the other end of the mounting frame, and the first pull rod is fixed to the bottom end of the connecting block; The adjusting mechanism has an opening to accommodate the first pull rod. The opening faces away from the screw bottle separating mechanism. Pulling the first pull rod along the opening causes the mounting frame and the screw bottle separating mechanism to rotate away from the baffle. The mounting plate is connected to the connecting block via the latch, and the mounting plate is rotatably connected to the screw bottle-separating mechanism; The pair of guide posts are arranged parallel to each other on the mounting plate, one end of each guide post is fixed on the mounting plate, and the other end of each guide post passes through the connecting block; The second tie rod is fixed to the mounting plate; When disassembling the screw bottle separating mechanism, loosen the latch and pull the second pull rod to separate the mounting plate and the connecting block, thereby separating the screw bottle separating mechanism and the mounting plate.

4. The anti-theft ring retraction device as described in claim 1, characterized in that, The main conveyor includes: a first drive shaft, a first rotary disk, a second rotary disk, a cam disk, and several rollers; The first drive shaft is connected to the output end of the rotary drive module; The first and second rotating disks are sleeved on the first drive shaft and rotate with the first drive shaft; The cam disk is sleeved on the first drive shaft and connected to the lifting drive module. The cam disk is provided with a cam-shaped raceway. The plurality of support mechanisms are distributed along the circumference of the first rotating disk, and the plurality of pressing mechanisms are distributed along the circumference of the second rotating disk; The rollers are connected one-to-one with the pressing mechanisms and are distributed around the circumference of the cam disk, and can move along the cam-shaped raceway.

5. The anti-theft ring retraction device as described in claim 4, characterized in that, The lifting drive module includes: a mounting frame, a first drive motor, a helical gear transmission mechanism, a lead screw, and a guide frame; The mounting bracket is fixed on the frame, the guide bracket is connected to the cam disk, and the two ends of the guide bracket are slidably mounted on the mounting bracket; The first drive motor and the helical gear transmission mechanism are mounted on the mounting bracket; The lead screw passes through the guide frame and the cam disk, and the output end of the lead screw is connected to the guide frame; The output end of the first drive motor is connected to the helical gear transmission mechanism, which is connected to the lead screw. The first drive motor drives the lead screw to rotate through the helical gear transmission mechanism, thereby driving the guide frame and the cam disc to rise and fall.

6. The anti-theft ring retraction device as described in claim 1, characterized in that, The rotary drive module includes: a second drive motor, a first gear, a second gear, a third gear, a fourth gear, a second drive shaft, and a third drive shaft; The second drive motor is mounted on the frame, and the output end of the second drive motor is connected to the first gear; The first gear, the second gear, the third gear, and the fourth gear mesh with each other in sequence; The second gear is sleeved on the second drive shaft, and the second drive shaft is connected to the feeding dial. The third gear is sleeved on the main conveyor plate; The fourth gear is sleeved on the third drive shaft, and the third drive shaft is connected to the feeding dial. The second drive motor drives the first gear to rotate, thereby causing the feeding dial, the main conveying disc, and the unloading dial to rotate.

7. The anti-theft ring retraction device as described in claim 1, characterized in that, The laser heating module includes: multiple sets of laser heating mechanisms and several laser reflective blocks; The plurality of laser reflective blocks are distributed along the circumference of the disc-shaped conveying module and correspond one-to-one with the plurality of supporting mechanisms. The height of the laser reflective blocks corresponds to that of the anti-theft ring. The multiple sets of laser heating mechanisms are arranged around the disc-shaped conveying module, and adjacent laser heating mechanisms are connected to each other; Each of the laser heating mechanisms comprises: a laser emitter, a reflector, a first lens, a second lens, a polygonal mirror, a driving component, and a conical cover; The laser emitter and the conical cover are mounted on the frame, with the conical cover opposite to the anti-theft ring; The laser emitter emits a laser beam, which is reflected by the reflector to the multifaceted mirror. The multifaceted mirror then reflects the laser beam again into the conical cover to heat and shrink the anti-theft ring. The first lens and the second lens are disposed between the reflector and the polygonal mirror for focusing the laser beam; The driving component drives the multifaceted mirror to rotate, generating a horizontal heating zone; The laser reflector block reflects the laser beam directed at it back to the anti-theft ring.

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