Heat shrink mechanism

Abstract

The utility model discloses a kind of heating shrinkage mechanisms, include: mounting bracket, laser emission device, focusing module and rotating reflection module;Laser emission device, focusing module and rotating reflection module are set on mounting bracket, and laser emission device is used to emit laser beam;Focusing module is connected with laser emission device and rotating reflection module;Focusing module focuses laser beam to rotating reflection module, and rotating reflection module reflects laser to form horizontal heating area, to heat the bottle cap anti-theft ring of the container conveyed by the container conveying device outside shrinkage.This utility model saves space through vertical laser and reflector design, focusing module ensures accurate focusing of laser, rotating polygon mirror forms horizontal heating area efficient heating, laser reflection block effectively recycles and utilizes excess laser energy, and energy is saved efficiently;Conical cover and internal heat insulation layer, guarantee operation safety;Quick-release baffle mechanism of blanking end, different specifications baffle are replaced quickly, improve production flexibility and maintenance efficiency.

Description

Technical Field

[0001] This utility model relates to the field of bottle cap production and processing technology, and in particular to a heating and shrinking mechanism. Background Technology

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

[0003] To simplify the recycling process and improve efficiency, one optimization 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, completely eliminating the need to separate the tamper-evident ring.

[0004] However, this solution faces challenges in production. The physical properties of PET material make it difficult to manufacture bottle caps with effective anti-theft functionality. Specifically, when PET bottle caps need to be demolded after being formed in the mold, their anti-theft buckles are often relatively complex and delicate in structure. These delicate anti-theft buckle structures are easily scratched, pulled, or even directly damaged by the mold during demolding, making it impossible to successfully produce PET bottle caps that meet the anti-theft performance requirements. Therefore, there is an urgent need for an anti-theft ring shrinkage device. Summary of the Invention

[0005] According to an embodiment of the present invention, a heating shrinkage mechanism is provided, comprising: a mounting frame, a laser emitting device, a focusing module, and a rotating reflection module;

[0006] The laser emitting device, focusing module, and rotating reflection module are mounted on the mounting frame. The laser emitting device is used to emit a laser beam.

[0007] The focusing module is connected to the laser emitting device and the rotating reflection module;

[0008] The focusing module focuses the laser beam onto the rotating reflection module, which reflects the laser to form a horizontal heating zone, thereby heating and shrinking the anti-theft ring on the bottle cap of the container being transported by the external container conveying device.

[0009] Furthermore, the focusing module includes: a first lens, a second lens, and four connecting posts;

[0010] The first and second lenses are vertically fixed on the mounting bracket and are parallel to each other;

[0011] One end of each of the four connecting posts is fixed to one of the four corners of the first lens, and the other end of each of the four connecting posts is fixed to one of the four corners of the second lens.

[0012] The first and second lenses are used to focus the laser beam.

[0013] Furthermore, the laser emitting device is vertically mounted on a mounting frame, which is equipped with a reflector. The reflector has a 45° reflecting slope and is positioned directly below the laser emitting device to reflect the laser beam to the focusing module.

[0014] Furthermore, the rotating reflection module includes: a rotating drive component and a sixteen-sided mirror;

[0015] The rotary drive component is mounted on the mounting bracket;

[0016] The output end of the rotary drive is connected to the sixteen-sided mirror, driving the sixteen-sided mirror to rotate and reflect the laser beam to generate a horizontal heating zone.

[0017] Furthermore, it also includes: a conical outer cover, which is mounted on a mounting frame, with a first opening and a second opening at each end of the conical outer cover, the length of the second opening being greater than the length of the first opening, the first opening being adjacent to the rotating reflection module, and the second opening being adjacent to the container conveying device.

[0018] Furthermore, the inner wall of the conical outer casing is provided with a heat insulation layer.

[0019] Furthermore, it also includes: a plurality of laser reflective blocks, which are disposed on the container conveying device. Each of the laser reflective blocks corresponds one-to-one with a plurality of containers conveyed by the container conveying device. The opposing surfaces of the laser reflective blocks and the containers are folded, and the folded surfaces reflect the laser beams directed at them back to the containers.

[0020] Furthermore, it also includes:

[0021] The feeding conveyor belt is connected to the container conveying device and is used for feeding containers.

[0022] A pair of support frames are respectively set on both sides of the feeding conveyor belt. The support frames are connected to baffles through quick-release mechanisms. The baffles are used to limit the position of the containers.

[0023] Furthermore, the quick-release mechanism includes: a pivot, a handle, a limit ring, an elastic element, a pin, and a screw thread;

[0024] The spiral buckle is fixed on the support frame. 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.

[0025] 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 baffle and is connected to the spiral buckle by the pin, and the two ends of the pin are respectively inserted into two guide grooves;

[0026] The elastic element is mounted on the rotating shaft and connected to the limiting ring;

[0027] 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.

[0028] The heating and shrinking mechanism according to this utility model saves space through the vertical laser and reflector design, the focusing module ensures precise laser focusing, the rotating multifaceted mirror forms a horizontal heating zone for efficient heating, and the specially designed laser reflector effectively recovers and utilizes excess laser energy, significantly reducing waste and achieving high efficiency and energy saving; the conical outer cover and internal heat insulation layer ensure operational safety; the quick-release baffle mechanism at the unloading end facilitates quick replacement of baffles of different specifications to adapt to containers of different sizes, improving production flexibility and maintenance efficiency.

[0029] 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

[0030] Figure 1 This is a schematic diagram of the heating and shrinking mechanism according to an embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of the focusing module of the heating and shrinking mechanism according to an embodiment of the present invention;

[0032] Figure 3 This is a schematic diagram of the structure of the laser reflector block of the heating and shrinking mechanism according to an embodiment of the present invention;

[0033] Figure 4 This is a schematic diagram of the feeding conveyor belt of the heating and shrinking mechanism according to an embodiment of the present invention;

[0034] Figure 5 This is a cross-sectional schematic diagram of the quick-release mechanism of the heating and shrinking mechanism according to an embodiment of the present utility model;

[0035] Figure 6 This is a schematic diagram of the spiral buckle of the heating and shrinking mechanism according to an embodiment of the present invention.

[0036] Reference numerals: 1. Mounting bracket; 2. Laser emitting device; 3. Conical outer cover; 4. Protective cover; 5. Laser reflector block;

[0037] Reflector 61, first lens 62, second lens 63, connecting post 64;

[0038] Rotary drive component 71, sixteen-sided mirror 72;

[0039] 81. Feeding conveyor belt; 82. Support frame; 83. Baffle; 84. Quick release mechanism;

[0040] 841. Rotating shaft 842. Rotating handle 843. Limiting ring 844. Elastic element 845. Pin 846. Spiral buckle 847. Guide groove 848. Detailed Implementation

[0041] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, further illustrating the present invention.

[0042] First, combine Figures 1-6 The heating shrink mechanism according to an embodiment of the present invention is used for heating shrinking of anti-theft rings on bottle caps, and its application scenarios are very wide.

[0043] like Figures 1-6 As shown, the heating and shrinking mechanism of this utility model embodiment includes: a mounting frame 1, a laser emitting device 2, a focusing module, and a rotating reflection module.

[0044] Specifically, such as Figures 1-6 As shown, in this embodiment, the laser emitting device 2, the focusing module and the rotating reflection module are mounted on the mounting frame 1. The laser emitting device 2 is used to emit a laser beam. In this embodiment, the laser emitting device 2 is a laser emitter.

[0045] Specifically, such as Figures 1-6 As shown, in this embodiment, the focusing module is connected to the laser emitting device 2 and the rotating reflection module; the focusing module focuses the laser beam to the rotating reflection module; the focusing module includes: a first lens 62, a second lens 63 and four connecting posts 64; the first lens 62 and the second lens 63 are vertically fixed on the mounting bracket 1 and are parallel to each other; one end of each of the four connecting posts 64 is fixed to the four corners of the first lens 62, and the other end of each of the four connecting posts 64 is fixed to the four corners of the second lens 63; the four connecting posts 64 ensure that the centers of the first lens 62 and the second lens 63 are located on the same straight line, and the first lens 62 and the second lens 63 are used to focus the diverging laser beam to ensure that the laser beam directed towards the rotating reflection module is in a focused state, thereby ensuring that the laser beam reflected by the rotating reflection module is located on the same plane.

[0046] Furthermore, such as Figures 1-6 As shown, in this embodiment, the laser emitting device 2 is vertically mounted on the mounting frame 1, which greatly saves horizontal installation space. The mounting frame 1 is provided with a reflector 61, which has a 45° reflecting slope. The reflector 61 is located directly below the laser emitting device 2 and reflects the laser beam to the focusing module. The reflecting slope of the reflector 61 can change the direction of the laser beam, converting the vertically emitted laser beam into a horizontal direction.

[0047] Specifically, such as Figures 1-6 As shown, in this embodiment, the rotating reflection module reflects laser light to form a horizontal heating zone, thereby heating the anti-theft ring of the bottle cap conveyed by the external container conveying device. The rotating reflection module includes a rotating drive 71 and a hexahedral mirror 72; the rotating drive 71 is mounted on the mounting frame 1 and can be a servo motor; the output end of the rotating drive 71 is connected to the hexahedral mirror 72, driving the hexahedral mirror 72 to rotate and reflect the laser beam to generate a horizontal heating zone, thereby heating the anti-theft ring of the bottle cap.

[0048] Specifically, such as Figures 1-6 As shown, in this embodiment, it further includes a conical outer cover 3, which is mounted on the mounting frame 1. The two ends of the conical outer cover 3 are a first opening and a second opening, respectively. The length of the second opening is greater than the length of the first opening. The first opening is adjacent to the rotating reflection module, and the second opening is adjacent to the container conveying device. The conical outer cover 3 improves safety by ensuring the laser beam remains within the conical outer cover 3. The inner wall of the conical outer cover 3 is provided with a heat insulation layer for protection, preventing heat damage and burns. In this embodiment, protective covers 4 are fitted around the laser beam emitted from the laser emitter to both the focusing module and the rotating reflection module to ensure safety.

[0049] Specifically, such as Figures 1-6 As shown, this embodiment further includes: a plurality of laser reflector blocks 5, which are disposed on the container conveying device. Each of the laser reflector blocks 5 corresponds one-to-one with a plurality of containers conveyed by the container conveying device. The opposing surface 51 of the laser reflector block 5 and the container forms a folded surface, which reflects the laser beam directed at it back to the container. Specifically, the anti-theft ring of the container cap is located between the laser reflector block 5 and the rotating reflection module. Since the length of the horizontal heating zone of the laser generated by the rotating reflection module is greater than the diameter of the anti-theft ring, there will be some excess laser lines that cannot irradiate the anti-theft ring, resulting in energy waste. Through the laser reflector block 5, the laser lines that cannot irradiate the anti-theft ring can be reflected to the inside of the anti-theft ring, thereby achieving heating and shrinking of the anti-theft ring and reducing energy waste.

[0050] Specifically, such as Figures 1-6 As shown, in this embodiment, it also includes: a feeding conveyor belt 81, which is connected to the container conveying device for feeding containers; a pair of support frames 82, which are respectively arranged on both sides of the feeding conveyor belt 81. A baffle 83 is connected to the support frame 82 through a quick-release mechanism 84. The baffle 83 is used to limit the container. The quick-release mechanism 84 can realize the quick installation and disassembly of the baffle 83 and the support frame 82, and facilitate the replacement of baffles 83 of different specifications to adapt to different containers.

[0051] Furthermore, such as Figures 1-6As shown, in this embodiment, the quick-release mechanism 84 includes: a rotating shaft 841, a rotating handle 842, a limiting ring 843, an elastic element 844, a pin 845, and a spiral buckle 846; the spiral buckle 846 is fixed on the support frame 82, and the spiral buckle 846 is hollow inside for insertion into the bottom of the rotating shaft 841. The spiral buckle 846 has two opposing guide grooves 847, and its top surface has two opposing openings. The two guide grooves 847 extend spirally from the two openings to the spiral buckle 846. The wall surface; the top of the rotating shaft 841 is fixed with a rotating handle 842, the bottom of the rotating shaft 841 is fixed with a pin 845, the pin 845 is perpendicular to the rotating shaft 841, that is, the pin 845 and the rotating shaft 841 are in a cross shape, the middle of the rotating shaft 841 is fixed with a limiting ring 843, the rotating shaft 841 passes through the baffle 83, and is fastened to the spiral buckle 846 through the pin 845, the two ends of the pin 845 are respectively inserted into two guide grooves 847; the elastic element 844 is sleeved on the rotating shaft 841 and connected to the limiting ring 843.

[0052] Specifically, the rotating shaft 841 can move up and down relative to the baffle 83. The rotating shaft 841 and the components fixed on the rotating shaft 841 are integrated with the baffle 83. The spiral buckle 846 is fixed to the baffle 83 at the installation location by screws and other fasteners. Due to the presence of the pin 845, the rotating shaft 841 will not fall off the baffle 83. When installing the baffle 83, the rotating shaft 841 moves downward, inserting both ends of the pin 845 from top to bottom into the two spiral openings. The rotating shaft 841 rotates and moves downward, driving the pin 845 along the two guide grooves. Rotate 847 downwards until pin 845 abuts against the bottom of guide groove 847, thus engaging with screw buckle 846. At this time, handle 842 abuts against the top surface of baffle 83, and elastic element 844 abuts against screw buckle 846, completing the installation of baffle 83. When baffle 83 is disassembled, shaft 841 rotates in the opposite direction, moving upwards while rotating, driving pin 845 to rotate upwards along the two guide grooves 847 to the two screw openings. Then, shaft 841 is pulled out from screw buckle 846, thus loosening from screw buckle 846.

[0053] Working principle: The laser emitter emits a laser beam, which is reversed by the reflector 61, and then focused by the first lens 62 and the second lens 63. The rotary drive 71 drives the hexagonal mirror 72 to rotate and generate a horizontal heating zone. When the external conveying device transports the container to the horizontal heating zone, it shrinks and heats the anti-theft ring of the bottle cap. Then, the unloading conveyor belt 81 transports the heated and shrunken container to the next station.

[0054] Above, refer to Figures 1-6The present invention describes a heating and shrinking mechanism according to an embodiment of the present invention. The design of the vertical laser and reflector saves space, the focusing module ensures precise laser focusing, the rotating multifaceted mirror forms a horizontal heating zone for efficient heating, and the specially designed laser reflector effectively recovers and utilizes excess laser energy, significantly reducing waste and achieving high efficiency and energy saving. The conical outer cover and internal heat insulation layer ensure operational safety. The quick-release baffle mechanism at the unloading end facilitates the rapid replacement of baffles of different specifications to adapt to containers of different sizes, improving production flexibility and maintenance efficiency.

[0055] 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.

[0056] 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 content. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A heating shrinkage mechanism, characterized in that, Includes: mounting bracket, laser emitting device, focusing module, and rotating reflection module; The laser emitting device, the focusing module, and the rotating reflection module are mounted on the mounting frame, and the laser emitting device is used to emit a laser beam. The focusing module is connected to the laser emitting device and the rotating reflection module; The focusing module focuses the laser beam onto the rotating reflection module, which reflects the laser to form a horizontal heating zone to heat and shrink the anti-theft ring of the bottle cap of the container being transported by the external container conveying device.

2. The heating and shrinking mechanism as described in claim 1, characterized in that, The focusing module includes: a first lens, a second lens, and four connecting posts; The first lens and the second lens are vertically fixed on the mounting bracket and are parallel to each other; One end of each of the four connecting posts is fixed to one of the four corners of the first lens, and the other end of each of the four connecting posts is fixed to one of the four corners of the second lens. The first lens and the second lens are used to focus the laser beam.

3. The heating and shrinking mechanism as described in claim 1 or 2, characterized in that, The laser emitting device is vertically mounted on the mounting frame, which is equipped with a reflector. The reflector has a 45° reflecting slope and is positioned directly below the laser emitting device to reflect the laser beam emitted by the laser emitting device to the focusing module.

4. The heating and shrinking mechanism as described in claim 1, characterized in that, The rotating reflection module includes: a rotating drive component and a sixteen-sided mirror; The rotary drive component is mounted on the mounting bracket; The output end of the rotary drive is connected to the hexagonal mirror, driving the hexagonal mirror to rotate and reflect the laser beam to generate a horizontal heating zone.

5. The heating and shrinking mechanism as described in claim 1, characterized in that, It also includes: a conical outer cover, which is disposed on the mounting frame, with a first opening and a second opening at each end of the conical outer cover, the length of the second opening being greater than the length of the first opening, the first opening being adjacent to the rotating reflective module, and the second opening being adjacent to the container conveying device.

6. The heating and shrinking mechanism as described in claim 5, characterized in that, The inner wall of the conical outer cover is provided with a heat insulation layer.

7. The heating and shrinking mechanism as described in claim 1, characterized in that, It also includes: a plurality of laser reflective blocks, which are disposed on the container conveying device. Each of the plurality of laser reflective blocks corresponds one-to-one with a plurality of containers conveyed by the container conveying device. The opposite surface of each laser reflective block and the container forms a folded surface, which reflects the laser beam directed toward it back to the container.

8. The heating and shrinking mechanism as described in claim 1, characterized in that, Also includes: A feeding conveyor belt, which is connected to the container conveying device, is used for feeding the container; A pair of support frames are respectively disposed on both sides of the unloading conveyor belt. Each support frame is connected to a baffle via a quick-release mechanism, and the baffle is used to limit the position of the container.

9. The heating and shrinking mechanism as described in claim 8, characterized in that, 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 on the support frame. 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 baffle 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. 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 spiral buckle.

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