PET plastic bottle label separating and debadging machine

Abstract

This invention relates to the field of label separation and removal technology, and discloses a PET plastic bottle label separation and removal machine, including a removal machine body, a feeding hopper fixedly installed on the top of the outer wall of the removal machine body, a fan fixedly installed on the top of the outer wall of the removal machine body, and a main shaft rotatably installed on the inner wall of the removal machine body. During the rotation of the main shaft, a moving rod is driven to move upward, and a rotating rod is driven to rotate. When a bottle becomes blocked inside the feeding hopper, the scraper contacts the bottle and is subjected to the external force of the bottle, forcing the scraper to move inside the rotating rod. During the movement, pressure is applied to the spring sheet on the outer wall of the scraper, causing the spring sheet to be compressed. At this time, the blade head of the scraper enters the bottle, applying a certain clamping force and pressure to the bottle, flattening the bottle body. The maximum outer diameter of irregularly shaped bottles can be reduced to a level similar to that of standard bottles, improving the throughput in the main cylinder and improving the separation purity of water-based removable adhesive PET labels.

Description

Technical Field

[0001] This invention relates to the field of label separation and removal technology, specifically to a label separation and removal machine for PET plastic bottles. Background Technology

[0002] Early PET bottle recycling relied on manual label removal, which was not only inefficient and costly, but also prone to damaging the bottles, affecting the quality of subsequent cleaning and recycling. With the large-scale development of the recycling industry, the market urgently needs efficient and stable automated label removal equipment, which has driven the technological evolution of label removal machines. PET plastic bottle label separation and removal machines are used to automatically peel off the labels from the surface of PET bottles, such as mineral water bottles and beverage bottles, replacing traditional manual sorting and improving recycling efficiency and the purity of the clean sheets. When workers feed irregularly shaped bottles and regular bottles into the label-removing machine, the machine's spiral blades are designed to advance at a pace that conforms to the length and rigidity of standard bottles. Due to their complex structure, irregularly shaped bottles experience greater resistance and slower speed, while regular bottles advance smoothly and quickly. This causes the latter to continuously "catch up" with the former, resulting in accumulation in the feeding section. When multiple bottles collide continuously, an "arch bridge structure" can easily form at the feeding inlet, blocking subsequent materials. To address these issues, the following solutions are proposed. Summary of the Invention

[0003] To solve the above-mentioned technical problems, the present invention provides a PET plastic bottle label separation and removal machine, including a label removal machine body, a feed hopper fixedly installed on the top of the outer wall of the label removal machine body, a fan fixedly installed on the top of the outer wall of the label removal machine body, and a main shaft rotatably installed on the inner wall of the label removal machine body, and further comprising: The unblocking mechanism is slidably installed on the top of the inner wall of the feed hopper; The braking mechanism is rotatably mounted on the inner wall side of the feed hopper; The release mechanism is slidably installed on the inner wall of the feed hopper.

[0004] Preferably, the unblocking mechanism includes: A compression assembly is slidably disposed on the top of the inner wall of the feed hopper; The contact component is rotatably mounted on the inner wall side of the feed hopper; During the rotation of the main shaft, the contact assembly is driven to rotate.

[0005] Preferably, the braking mechanism includes: The force-bearing component is rotatably mounted on the inner wall side of the feed hopper; A rotating assembly is fixedly installed on the inner wall of the feed hopper; When the contact component rotates, the rotating component undergoes a certain displacement.

[0006] Preferably, the release mechanism includes: A limiting component is slidably disposed on the inner wall of the feed hopper; The rejection component is slidably positioned on the inner wall of the rotating component; Among them, when the force-bearing component moves, the component that was removed from the list moves.

[0007] Preferably, the compression assembly includes a sliding block slidably connected to the top of the inner wall of the feed hopper, a spring fixedly connected to the bottom of the outer wall of the sliding block, and a moving rod fixedly connected to the bottom of the outer wall of the spring; During the rotation of the main shaft, the moving rod moves upward and applies a thrust to the spring.

[0008] Preferably, the contact assembly includes a rotating rod rotatably connected to the inner wall side of the feed hopper, two scrapers slidably connected to the inner wall of the rotating rod, a contact plate slidably connected to the inner wall of the rotating rod, and a compression rod fixedly connected to the bottom of the inner wall of the contact plate. During the rotation of the rotating rod, the scraper comes into contact with the bottle and is subjected to external force from the bottle. When it moves, it applies pressure to the spring sheet on the outer wall of the scraper. At this time, the scraper head enters the bottle and applies a certain clamping force to the bottle. Under the elastic force of the compression rod, the contact plate is forced to move upward.

[0009] Preferably, the force-bearing component includes a telescopic rod fixedly connected to the side wall of the contact plate, a contact block slidably connected to the side wall of the feed hopper, and a rotating plate rotatably connected to the inner wall of the feed hopper. As the contact plate moves, a pulling force is applied to the telescopic rod. When the contact plate rotates at a certain angle, the scraper first contacts the inclined surface of the contact block, causing the scraper to move under force. As the contact plate continues to rotate, the telescopic rod applies a pulling force to the contact plate. At this time, as the rotating rod continues to rotate, a pushing force is applied to the contact block, and a pushing force is applied to the end of the rotating plate near the contact block. During the rotation of the rotating plate, the squeezed bottle gradually loses its clamping force and eventually falls downward.

[0010] Preferably, the rotating assembly includes a collecting block fixedly connected to the inner wall of the feed hopper, and a rotating plate is rotatably connected to the bottom of the inner wall of the collecting block; The squeezed bottles landed on the top of the outer wall of the rotating plate.

[0011] Preferably, the limiting component includes a limiting block slidably connected to the inner wall of the feed hopper, and a spring piece is fixedly connected to the side wall of the limiting block; When the contact block moves, it loses its restraint on the limiting block, causing the inclined protrusion of the limiting block to contact the bottom of the rotating plate. The limiting block provides support to the rotating plate. When the number of bottles on the rotating plate reaches a certain amount, it will rotate downward, causing the bottles inside the collecting block to fall downward.

[0012] Preferably, a thrust plate is slidably connected to the top of the inner wall of the collecting block, and a spring piece is fixedly connected to the side wall of the thrust plate; During the rotation of the rotating plate, the thrust plate moves under the force, and during the movement, it applies a thrust to the spring piece and to the bottle.

[0013] The present invention has the following beneficial effects: (1) During the rotation of the main shaft, the present invention drives the moving rod to move upward and drives the rotating rod to rotate. During the rotation of the rotating rod, when the bottle is blocked inside the feed hopper, the scraper contacts the bottle and is subjected to the external force of the bottle, forcing the scraper to move inside the rotating rod. When moving, pressure is applied to the spring sheet on the outer wall of the scraper, causing the spring sheet to be compressed. At this time, the scraper head enters the bottle and applies a certain clamping force to the bottle and applies pressure to the bottle. After the bottle body is flattened by the above components, the maximum outer diameter of the irregular bottle can be reduced to a level similar to that of the standard bottle, improving the throughput in the main cylinder and improving the separation purity of the water-based removable adhesive PET label.

[0014] (2) When the scraper moves, it loses its restriction on the contact plate. The contact plate moves upward under force. At the same time as the contact plate moves, a tension is applied to the telescopic rod. When the contact plate rotates at a certain angle, the scraper first contacts the inclined surface of the contact block. The telescopic rod applies a tension to the contact plate, so that when the scraper contacts the contact block, the contact plate is reset by the tension of the telescopic rod. When the contact block moves under force, the rotating plate rotates as a whole under force. During the rotation of the rotating plate, the squeezed bottle gradually loses its clamping force and eventually falls downward. By expanding the contact area with the irregular bottle through the above components, the squeezed irregular bottle still maintains its overall shape and is not easy to get stuck or jammed in the feed hopper, thus improving the air separation accuracy.

[0015] (3) When the contact block moves, the present invention loses its restriction on the limiting block. When the rotating plate is continuously rotated under force, it continuously applies a pushing force to the limiting block. When the limiting block moves a certain distance, the bottom of the contact block does not contact the inclined surface of the limiting block. When the number of bottles on the rotating plate reaches a certain amount, it will rotate downward, causing the bottles inside the collecting block to fall downward. By releasing the flattened bottles in a concentrated manner through the above components, it can prevent the irregular edges of the flattened bottles from being laterally pressed or nested with the round bottles, significantly reducing the probability of blockage, improving the stability of conveying, and enhancing the consistency of label removal.

[0016] (4) During the rotation of the rotating plate, the push plate moves under the force. During the movement of the push plate, a push force is applied to the bottle. If the bottle has been squeezed, it can be pushed upright so that it can fall into the collection block better. When the rotating plate is reset, the push plate is reset by the elasticity of the spring sheet. The ordinary bottle falling on the top of the collection block is pushed away by the above components, which effectively prevents the ordinary bottle from blocking the top of the components. This makes it easier for the flattened irregular bottle to enter the collection block, thus improving the conveying stability. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic cross-sectional view of the overall structure of the present invention; Figure 3 This is a cross-sectional schematic diagram of the braking mechanism and the release mechanism of the present invention; Figure 4 This is a schematic cross-sectional view of the compression component of the present invention; Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle; Figure 6 This is a schematic diagram of some parts in the compression assembly of the present invention; Figure 7 This is a schematic cross-sectional view of the unblocking mechanism of the present invention; Figure 8 For the present invention Figure 7 Enlarged view of point B in the middle; Figure 9 For the present invention Figure 7 Enlarged view of point C in the middle; Figure 10 This is a schematic cross-sectional view of the force-bearing component of the present invention; Figure 11 This is a schematic cross-sectional view of the rotating component of the present invention; Figure 12 For the present invention Figure 11 Enlarged view of point D; Figure 13 This is a schematic cross-sectional view of the limiting component of the present invention; Figure 14 This is a cross-sectional schematic diagram of the force-bearing component and the restraining component of the present invention; Figure 15This is a schematic cross-sectional view of the rotating component and the limiting component of the present invention; Figure 16 This is a cross-sectional schematic diagram of the component removal method of the present invention.

[0019] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Unblocking mechanism; 11. Compression assembly; 12. Contact assembly; 13. Label removal body; 14. Feed hopper; 15. Fan; 16. Main shaft; 111. Sliding block; 112. Spring; 113. Moving rod; 121. Rotating rod; 122. Scraper; 123. Contact plate; 124. Compression rod; 2. Braking mechanism; 21. Force-bearing assembly; 22. Rotating assembly; 211. Telescopic rod; 212. Contact block; 213. Rotating plate; 221. Collecting block; 222. Rotating plate one; 3. Release mechanism; 31. Restriction assembly; 32. Removal assembly; 311. Restriction block; 312. Spring; 321. Thrust plate; 322. Spring one. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1, please refer to Figures 1-3 This invention relates to a label removal machine for PET plastic bottles, comprising a label removal machine body 13, a feed hopper 14 fixedly mounted on the top of the outer wall of the label removal machine body 13, a fan 15 fixedly mounted on the top of the outer wall of the label removal machine body 13, and a main shaft 16 rotatably mounted on the inner wall of the label removal machine body 13, and further comprising: Unblocking mechanism 1 is slidably disposed on the top of the inner wall of the feed hopper 14; Braking mechanism 2 is rotatably mounted on the inner wall side of the feed hopper 14; Release mechanism 3 is slidably disposed on the inner wall of feed hopper 14.

[0022] The unblocking mechanism 1 includes: Compression assembly 11 is slidably disposed on the top of the inner wall of the feed hopper; Contact component 12 is rotatably disposed on the inner wall side of the feed hopper 14; In this process, the staff starts the label removal machine 13 and the blower 15 to sort various plastic bottles through the sorting platform. After sorting, the bottles are conveyed to the top of the feeding hopper 14 and fall into the label removal machine 13 through the feeding hopper 14. Under the rotation of the main shaft 16, the various plastic bottles are pushed forward. During the movement, the labels on the surface of the plastic bottles are removed. After the labels are removed, due to the lightness of the label paper, the suction generated by the blower 15 sucks the labels into the label storage bin. The bottles after the labels are removed are conveyed to the next station through the conveyor port at the end of the label removal machine 13 away from the feeding hopper 14. During the rotation of the main shaft 16, the compression component 11 is moved. At the same time as the compression component 11 moves, the contact component 12 is rotated.

[0023] Braking mechanism 2 includes: Force-receiving component 21 is rotatably disposed on the inner wall side of the feed hopper 14; Rotating component 22 is fixedly installed on the inner wall of the feed hopper 14; When the contact component 12 rotates, it drives the force-receiving component 21 to rotate synchronously. When the flattened irregular bottle enters the rotating component 22, the rotating component 22 undergoes a certain displacement.

[0024] Release mechanism 3 includes: The limiting component 31 is slidably disposed on the inner wall of the feed hopper 14; The rejection component 32 is slidably disposed on the inner wall of the rotating component 22; When the force-bearing component 21 moves, it loses its restraint on the limiting component 31, causing the limiting component 31 to move. When the force-bearing component 21 rotates, it generates a thrust on the rejection component 32, forcing the rejection component 32 to move.

[0025] Example 2, please refer to Figures 4-16 The present invention is a label separation and label removal machine for PET plastic bottles. Based on Example 1, the compression component 11 includes a sliding block 111 that is slidably connected to the top of the inner wall of the feed hopper 14, a spring 112 that is fixedly connected to the bottom of the outer wall of the sliding block 111, and a moving rod 113 that is fixedly connected to the bottom of the outer wall of the spring 112. During the rotation of the main shaft 16, the main shaft 16 drives the moving rod 113 to move through several protrusions on the outer wall, forcing the moving rod 113 to move upward. During the upward movement of the moving rod 113, a pushing force is applied to the spring 112, causing the spring 112 to be compressed and accumulate potential energy.

[0026] The contact assembly 12 includes a rotating rod 121 rotatably connected to the inner wall side of the feed hopper 14, two scrapers 122 slidably connected to the inner wall of the rotating rod 121, a contact plate 123 slidably connected to the inner wall of the rotating rod 121, and a compression rod 124 fixedly connected to the bottom of the inner wall of the contact plate 123. During the upward movement of the moving rod 113, the rotating rod 121 rotates as the moving rod 113 moves upward. As the moving rod 113 continues to move upward, the inclined protrusion at the top of the moving rod 113 collides with the protrusion at the top of the inner wall of the feed hopper 14, forcing the moving rod 113 to move laterally. This causes the spring 112 and the sliding block 111 to move synchronously. After moving a certain distance, the moving rod 113 is subjected to the elastic force of the spring 112, causing it to move downward. After moving downward a certain distance, the bottom of the moving rod 113 contacts the inclined surface at the bottom of the inner wall of the feed hopper 14. The inclined surface causes the moving rod 113 to move laterally again. At the end of the lateral movement, the bottom protrusion of the moving rod 113 engages again with several protrusions on the side wall of the main shaft 16. Meanwhile, the rotating rod 121... During the rotation of the 21, the scraper 122, contact plate 123, and compression rod 124 rotate synchronously. When a bottle becomes blocked inside the feed hopper 14, the scraper 122 contacts the bottle and is subjected to external force from the bottle, forcing the scraper 122 to move inside the rotating rod 121. During the movement, pressure is applied to the spring sheet on the outer wall of the scraper 122, causing the spring sheet to be compressed. At this time, the blade of the scraper 122 enters the bottle and applies a certain clamping force to the bottle. When the scraper 122 moves, it loses its restriction on the contact plate 123. Under the elastic force of the compression rod 124, the contact plate 123 is forced to move upward and contact the outer wall of the bottle. As the rotating rod 121 rotates, the top of the outer wall of the rotating rod 121 and the contact plate 123 apply pressure to the bottle.

[0027] The force-bearing component 21 includes a telescopic rod 211 fixedly connected to the side wall of the contact plate 123, a contact block 212 slidably connected to the side wall of the feed hopper 14, and a rotating plate 213 rotatably connected to the inner wall of the feed hopper 14. Simultaneously with the movement of the contact plate 123, a pulling force is applied to the telescopic rod 211, forcing it to stretch. As the contact plate 123 rotates, it drives the telescopic rod 211 to rotate synchronously. When the contact plate 123 rotates a certain angle, the scraper 122 first contacts the inclined surface of the contact block 212, causing the scraper 122 to move under force. The blade tip of the scraper 122 leaves the bottle. As the contact plate 123 continues to rotate, the telescopic rod 211 applies a pulling force to the contact plate 123, causing the scraper 122 to contact the contact block 212. The contact plate 123 is reset by the tension of the telescopic rod 211. At this time, as the rotating rod 121 continues to rotate, a pushing force is applied to the contact block 212. When the contact block 212 moves under force, pressure is applied to the spring on the outer wall of the contact block 212, and a pushing force is applied to the end of the rotating plate 213 near the contact block 212, so that the rotating plate 213 rotates as a whole under force. During the rotation of the rotating plate 213, the squeezed bottle gradually loses its clamping force and eventually falls downward. At the same time as the contact plate 123 is reset, the scraper 122 restricts the contact plate 123 again.

[0028] The rotating assembly 22 includes a collection block 221 fixedly connected to the inner wall of the feed hopper 14, and a rotating plate 222 is rotatably connected to the bottom of the inner wall of the collection block 221. During the process of falling, the squeezed bottles enter the interior of the collection block 221 and land on the top of the outer wall of the rotating plate 222. As the bottles accumulate, they exert pressure on the rotating plate 222, causing the torsion spring inside the rotating plate 222 to deform under stress and accumulate potential energy.

[0029] The limiting component 31 includes a limiting block 311 that is slidably connected to the inner wall of the feed hopper 14, and a spring piece 312 is fixedly connected to the side wall of the limiting block 311; As the rotating plate 222 rotates under force, it contacts the inclined surface of the limiting block 311 and applies a pushing force to the limiting block 311, causing it to gradually move. During this movement, a pushing force is applied to the spring piece 312, causing it to deform and accumulate potential energy. Initially, when the contact block 212 moves, it loses its restraint on the limiting block 311. Under the elastic force of the spring piece 312, the inclined protrusion of the limiting block 311 contacts the bottom of the rotating plate 222. As the rotating plate 222 continues to rotate under force, it continuously applies a pushing force to the limiting block 311. When the limiting block 311 moves a certain distance, the bottom of the contact block 212 no longer contacts the inclined surface of the limiting block 311, preventing the contact block 212 from applying a pushing force to the limiting block 311. At this time, the limiting block 311 provides support to the rotating plate 222. When a certain number of bottles are on the top of the outer wall of the rotating plate 222, the rotating plate 222 pushes the limiting block 311 to move again and loses the restriction of the limiting block 311. The rotating plate 222 rotates downward, causing the bottles inside the collecting block 221 to fall downward. At this time, the contact block 212 is constantly moving and does not apply a pushing force to the limiting block 311. Under the action of the spring piece 312, the limiting block 311 moves to the top of the outer wall of the rotating plate 222, causing the squeezed bottles inside the collecting block 221 to fall completely. At this time, the contact block 212 completes the reset under the elastic force of the spring. During the reset, it contacts the limiting block 311 again and pushes the limiting block 311 through the inclined surface of the limiting block 311, causing it to lose the restriction on the rotating plate 222. The rotating plate 222 completes the reset through its own internal torsion spring.

[0030] A thrust plate 321 is slidably connected to the top of the inner wall of the collecting block 221, and a spring piece 322 is fixedly connected to the side wall of the thrust plate 321. During the rotation of the rotating plate 213, the bottom of the outer wall of the rotating plate 213 applies a pushing force to the push plate 321, causing the push plate 321 to move under the force. During the movement, a pushing force is applied to the spring piece 322, causing the spring piece 322 to be compressed and accumulate potential energy. During the movement of the push plate 321, a pushing force is applied to the bottle. If the bottle has been squeezed, it can be pushed upright so that it can fall into the collection block 221 better. When the rotating plate 213 is reset, the push plate 321 is reset by the elastic force of the spring piece 322.

[0031] A specific application of this embodiment is as follows: The staff starts the label removal machine 13 and the fan 15 to sort various plastic bottles through the sorting platform. After sorting, the bottles are conveyed to the top of the feeding hopper 14 and fall into the label removal machine 13 through the feeding hopper 14. Under the rotation of the main shaft 16, the various plastic bottles are pushed forward. During the movement, the labels on the surface of the plastic bottles are removed. After the labels are removed, due to the lightness of the label paper, the suction generated by the fan 15 sucks the labels into the label storage bin. This label is a water-based removable adhesive PET label. After the labels are removed, the bottles are conveyed to the next station through the conveying port at the end of the label removal machine 13 away from the feeding hopper 14.

[0032] When workers feed irregularly shaped bottles and regular bottles into the label-removing machine 13 together, the spiral blades of the machine 13 are designed to advance at a pace appropriate to the length and rigidity of standard bottles. Irregularly shaped bottles, due to their complex structure, experience greater resistance and slower speed, while regular bottles advance smoothly and quickly. This causes the latter to continuously "catch up" with the former, resulting in accumulation in the feeding section. When multiple bottles collide continuously, an "arch bridge structure" can easily form within the feeding hopper 14, blocking subsequent material flow. During the rotation of the main shaft 16, several protrusions on its outer wall cause the moving rod 113 to move, forcing the moving rod 113 to undergo... As the moving rod 113 moves upward, it applies a pushing force to the spring 112, causing the spring 112 to compress and accumulate potential energy. This energy is then used by the moving rod 113 to drive the rotating rod 121 to rotate. As the moving rod 113 continues to move upward, the inclined protrusion at the top of the moving rod 113 collides with the protrusion at the top of the inner wall of the feed hopper 14, forcing the moving rod 113 to move laterally. This causes the spring 112 and the sliding block 111 to move synchronously. After moving a certain distance, the moving rod 113 experiences the elastic force of the spring 112, causing it to move downward. After moving a certain distance downward... The bottom of the moving rod 113 contacts the inclined surface of the inner wall of the feed hopper 14. The inclined surface causes the moving rod 113 to move laterally again under force. At the end of the lateral movement, the bottom protrusion of the moving rod 113 engages again with several protrusions on the side wall of the main shaft 16. During the rotation of the rotating rod 121, the scraper 122, contact plate 123, and compression rod 124 rotate synchronously. When a bottle becomes clogged inside the feed hopper 14, the scraper 122 contacts the bottle and is subjected to external force from the bottle, forcing the scraper 122 to move within the rotating rod 121. During this movement, the scraper 122... Pressure is applied to the spring sheet on the outer wall, causing it to compress. At this time, the blade of scraper 122 enters the bottle, applying a certain clamping force and pressure to the bottle, while simultaneously moving the bottle. By applying pressure to the bottle body through the above components, the maximum outer diameter of the irregularly shaped bottle can be reduced to a level similar to that of a standard bottle, significantly reducing the space occupied by the irregularly shaped bottle and avoiding "bridging" or tipping due to excessive width. This improves the throughput within the main unit cylinder, reduces rigidity differences, improves propulsion synchronization, and enhances the separation purity of water-based removable adhesive PET labels.

[0033] Utilizing the aforementioned characteristic of the scraper 122's movement, when the scraper 122 moves, it loses its restraint on the contact plate 123. Under the elastic force of the compression rod 124, the contact plate 123 is forced to move upward and contact the outer wall of the bottle. As the rotating rod 121 rotates, the top of the outer wall of the rotating rod 121 and the contact plate 123 apply pressure to the bottle. Simultaneously with the movement of the contact plate 123, a pulling force is applied to the telescopic rod 211, forcing the telescopic rod 211 to be stretched. During the rotation of the contact plate 123... The telescopic rod 211 rotates synchronously. When the contact plate 123 rotates a certain angle, the scraper 122 first contacts the inclined surface of the contact block 212, causing the scraper 122 to move under force. The blade of the scraper 122 leaves the bottle. As the contact plate 123 continues to rotate, the telescopic rod 211 applies a pulling force to the contact plate 123, so that when the scraper 122 contacts the contact block 212, the contact plate 123 returns to its original position due to the pulling force of the telescopic rod 211. At this time, as the rotating rod 121 continues to rotate... The rotation of the rotating plate 213 applies a pushing force to the contact block 212. When the contact block 212 moves under force, it applies pressure to the spring on the outer wall of the contact block 212 and applies a pushing force to the end of the rotating plate 213 near the contact block 212, causing the rotating plate 213 to rotate as a whole. During the rotation of the rotating plate 213, the squeezed bottle gradually loses its clamping force and eventually falls downward. At the same time as the contact plate 123 resets, the scraper 122 restricts the contact plate 123 again. If the irregular bottle is too large, the rotating rod 121 cannot effectively squeeze it, but instead damages the irregular bottle and tears it. During the label removal process, it is difficult to stably adhere to the cylinder wall. When the moving knife and the fixed knife are shearing, "idling" or "single-point impact" occurs, reducing the label peeling efficiency. By expanding the contact area with the irregular bottle through the above components, the squeezed irregular bottle still maintains its overall shape and is not easy to hook or get stuck in the feed hopper 14, ensuring continuous and stable feeding, significantly improving the efficiency of subsequent processing, ensuring stable operation of the equipment, and improving the accuracy of air separation.

[0034] Utilizing the characteristics of the bottles being squeezed and eventually falling downwards, during the descent, they enter the interior of the collecting block 221 and land on the top of the outer wall of the rotating plate 222. As the bottles accumulate, they apply pressure to the rotating plate 222, causing the torsion spring inside the rotating plate 222 to deform and accumulate potential energy. As the rotating plate 222 rotates under pressure, it contacts the inclined surface of the limiting block 311 and applies a pushing force to the limiting block 311, causing the limiting block 311 to gradually move. During the movement, a pushing force is applied to the spring 312, causing the spring 312 to deform and accumulate potential energy. Initially, upon contact... When block 212 moves, it loses its restraint on restricting block 311. Under the elastic force of spring piece 312, the inclined protrusion of restricting block 311 contacts the bottom of rotating plate 222. As rotating plate 222 rotates continuously under force, it continuously applies a pushing force to restricting block 311. When restricting block 311 moves a certain distance, the bottom of contact block 212 no longer contacts the inclined surface of restricting block 311, making it impossible for contact block 212 to apply a pushing force to restricting block 311. At this time, restricting block 311 provides support force to rotating plate 222. When a certain number of bottles are on the top of the outer wall of rotating plate 222, rotating plate 222 pushes... The limiting block 311 moves again and loses its restraint. The rotating plate 222 rotates downward, causing the bottle inside the collecting block 221 to fall downward. At this time, the contact block 212 is constantly moving and does not apply any pushing force to the limiting block 311. Under the action of the spring piece 312, the limiting block 311 moves to the top of the outer wall of the rotating plate 222, causing the bottle that was squeezed inside the collecting block 221 to fall completely. At this time, the contact block 212 completes its reset under the elastic force of the spring. During the reset, it contacts the limiting block 311 again and pushes it through the inclined surface of the limiting block 311, causing it to lose its restraint. The rotating plate 222 is restricted and reset by its internal torsion spring. Before the flattened irregularly shaped bottles are fed into the spiral propulsion structure of the label removal machine 13 along with ordinary bottles, the flattened irregularly shaped bottles, such as flat, polygonal, or bottles with structural protrusions and irregular edges, are prone to lateral nesting or jamming in the feed hopper 14 or the starting section of the spiral when mixed with round ordinary bottles, causing a serious decrease in label removal efficiency. By releasing the flattened bottles in a concentrated manner through the above-mentioned components, the irregular edges of the flattened bottles can be prevented from laterally jamming or nesting with the round bottles, significantly reducing the probability of blockage, improving conveying stability, and enhancing label removal consistency.

[0035] Utilizing the rotational characteristics of the rotating plate 213, during its rotation, the bottom of the outer wall of the rotating plate 213 applies a pushing force to the push plate 321, causing the push plate 321 to move under the force. During this movement, a pushing force is applied to the spring piece 322, causing it to compress and accumulate potential energy. As the push plate 321 moves, a pushing force is applied to the bottle. If the bottle has been squeezed, it can be righted, allowing it to fall more easily into the collecting block 221. When the rotating plate 213 returns to its original position, the push plate 321... 21 is reset by the elastic force of the spring piece 322. During the process of conveying plastic bottles into the spiral pushing structure, due to the large number of bottles falling in, some small bottles may get stuck at the top opening of the collection block 221. This causes the flattened irregular bottles to be mixed in with the unflattened ordinary bottles, which will still increase the risk of jamming and reduced label removal efficiency. The above-mentioned components push away the ordinary bottles that fall on the top of the collection block 221, effectively preventing ordinary bottles from blocking the top of the components, making it easier for the flattened irregular bottles to enter the collection block 221, and improving the conveying stability.

[0036] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A PET plastic bottle label separation and debarking machine, comprising a debarking machine body (13), a feed hopper (14) is fixedly arranged at the top of the outer wall of the debarking machine body (13), a fan (15) is fixedly arranged at the top of the outer wall of the debarking machine body (13), and a main shaft (16) is rotatably arranged at the inner wall of the debarking machine body (13), characterized in that, Also includes: Unblocking mechanism (1), which is slidably disposed on the top of the inner wall of the feed hopper (14); Braking mechanism (2), which is rotatably disposed on the inner wall side of the feed hopper (14); Release mechanism (3), which is slidably disposed on the inner wall of feed hopper (14).

2. The PET plastic bottle label separating and debarking machine according to claim 1, characterized in that: The unblocking mechanism (1) includes: Compression assembly (11), which is slidably disposed on the top of the inner wall of the feed hopper; Contact assembly (12), which is rotatably disposed on the inner wall side of the feed hopper (14); In this process, the staff starts the label removal machine (13) and the fan (15) to sort various plastic bottles through the sorting platform. After sorting, the bottles are sent to the top of the feed hopper (14) by the conveyor and fall into the label removal machine (13) through the feed hopper (14). Under the rotation of the main shaft (16), the various plastic bottles are pushed forward. During the movement, the labels on the surface of the plastic bottles are removed. After the labels are removed, due to the lightness of the label paper, the suction generated by the fan (15) sucks the labels into the label storage compartment. The bottles after the labels are removed are transported to the next station through the conveyor port at the end of the label removal machine (13) away from the feed hopper (14).

3. The PET plastic bottle label separating and debarking machine according to claim 2, characterized in that: The braking mechanism (2) includes: Force-receiving component (21), which is rotatably disposed on the inner wall side of the feed hopper (14); Rotating assembly (22), which is fixedly disposed on the inner wall of the feed hopper (14); When the contact component (12) rotates, it drives the force-bearing component (21) to rotate synchronously.

4. The PET plastic bottle label separating and debarking machine according to claim 3, characterized in that: The release mechanism (3) includes: A limiting component (31) is slidably disposed on the inner wall of the feed hopper (14); The rejection assembly (32) is slidably disposed on the inner wall of the rotating assembly (22); When the force-bearing component (21) moves, the restraining component (31) also moves.

5. The PET plastic bottle label separating and debarking machine according to claim 4, characterized in that: The compression assembly (11) includes a sliding block (111) slidably connected to the top of the inner wall of the feed hopper (14), a spring (112) fixedly connected to the bottom of the outer wall of the sliding block (111), and a moving rod (113) fixedly connected to the bottom of the outer wall of the spring (112). The spring (112) is provided with a compression rod inside to protect the spring (112). The top of the outer wall of the compression rod is fixedly connected to the bottom of the outer wall of the sliding block (111). The bottom of the outer wall of the compression rod is fixedly connected to the top of the outer wall of the moving rod (113). Several protrusions on the bottom of the outer wall of the moving rod (113) mesh with several protrusions on the side wall of the main shaft (16). The sliding block (111) has a certain frictional force with the top of the inner wall of the feed hopper (14).

6. The PET plastic bottle label separating and debarking machine according to claim 5, characterized in that: The contact assembly (12) includes a rotating rod (121) rotatably connected to the inner wall side of the feed hopper (14), two scrapers (122) are slidably connected to the inner wall of the rotating rod (121), a contact plate (123) is slidably connected to the inner wall of the rotating rod (121), and a compression rod (124) is fixedly connected to the bottom of the inner wall of the contact plate (123). The compression rod (124) is initially in a compressed state. The bottom of the outer wall of the compression rod (124) is fixedly connected to the inner wall of the rotating rod (121). The rotating rod (121) has a certain weight.

7. The PET plastic bottle label separating and debarking machine according to claim 6, characterized in that: The force-bearing component (21) includes a telescopic rod (211) fixedly connected to the side wall of the contact plate (123), a contact block (212) slidably connected to the side wall of the feed hopper (14), and a rotating plate (213) rotatably connected to the inner wall of the feed hopper (14). The bottom of the outer wall of the telescopic rod (211) is rotatably connected to the inner wall of the feed hopper (14), and the extended end of the bottom of the outer wall of the contact block (212) does not contact the rotating plate (213).

8. The PET plastic bottle label separating and debarking machine according to claim 6, characterized in that: The rotating assembly (22) includes a collection block (221) fixedly connected to the inner wall of the feed hopper (14), and a rotating plate (222) is rotatably connected to the bottom of the inner wall of the collection block (221). The collecting block (221) is located at the bottom of the rotating rod (121).

9. The PET plastic bottle label separating and debarking machine according to claim 8, characterized in that: The limiting component (31) includes a limiting block (311) that is slidably connected to the inner wall of the feed hopper (14), and a spring piece (312) is fixedly connected to the side wall of the limiting block (311). The limiting block (311) extends through the collecting block (221) to the interior of the collecting block (221), and the end of the spring piece (312) away from the limiting block (311) is fixedly connected to the inner wall of the feed hopper (14).

10. The PET plastic bottle label separating and debarking machine according to claim 9, characterized in that: A thrust plate (321) is slidably connected to the top of the inner wall of the collecting block (221), and a spring piece (322) is fixedly connected to the side wall of the thrust plate (321). The thrust plate (321) has several ball bearings on its inclined surface. When the thrust plate (321) contacts the bottle surface, the ball bearings contact the bottle, reducing the friction between the two.

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