Elastic plastic product crushing and recycling device

By using anti-vibration components in the crushing device, the problem of equipment damage caused by whip tail vibration during the crushing process of flexible and highly elastic plastic sheets is solved, achieving stable crushing and collection effects.

CN121798798AActive Publication Date: 2026-04-07JIANGSU XIANGHUA TECH CO LTD
View PDF 9 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-15
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

When processing flexible, highly elastic long plastic sheets, traditional crushing equipment is prone to increased instantaneous impact load due to whip-tail vibration, which can lead to dynamic imbalance of the equipment and wear of bearing seals, affecting long-term reliable operation.

Method used

The device employs anti-vibration components and a rotating structure to clamp the far end of the plastic plate, preventing whip-tail vibration. The vertical spacing between the upper and lower pressure rollers is adjusted to maintain long-term clamping and conveying, thus avoiding increased impact load.

Benefits of technology

It effectively prevents whip-tail vibration at the far end of the plastic sheet, avoids short-term damage to the equipment, ensures long-term reliable operation, and achieves stable crushing and collection of plastic products.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121798798A_ABST
    Figure CN121798798A_ABST
Patent Text Reader

Abstract

The invention belongs to the technical field of plastic product crushing and recycling, and particularly relates to an elastic plastic product crushing and recycling device which comprises a rack, two crushing rollers and a recycling box, a plastic product plate is placed between the two crushing rollers, and a second anti-vibration assembly and a first anti-vibration assembly are movably installed above the rack; the anti-vibration structure comprises a positioning barrel fixedly connected with the support and a lower pressing roller rotationally installed in the inclined lower angle direction of the positioning barrel, and an upper pressing roller is rotationally installed in the inclined upper angle direction of the positioning barrel. The first anti-vibration assembly and the second anti-vibration assembly are close to the two sides of the far end of the plastic product plate through a rotating structure, the far end of the plastic product plate is clamped, whip-tail type vibration of the far end of the plastic product plate can be prevented, the whole plastic product plate is crushed through two crushing rollers, and crushed materials generated after crushing can fall into a recycling box to be collected. And the recycled crushed aggregates can be treated in subsequent procedures.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention belongs to the field of plastic product crushing and recycling, specifically a device for crushing and recycling elastic plastic products. Background Technology

[0002] There are many types of plastic products, including long strip plastic sheets with good flexibility and significant elasticity. In the recycling and crushing process, these sheets are usually fed manually. The operator inserts one end of the sheet between two opposing crushing rollers. After the rollers mesh, they continuously apply upward pulling and shearing forces, causing the sheet to gradually sink and be torn and crushed. The crushed fragments fall directly to the bottom of the crushing box and then enter the recycling box for temporary storage, in preparation for subsequent processing steps.

[0003] A patent document with announcement number CN223290121U discloses a plastic product crushing device, including a crushing box, a dust collection device, and a crushing roller. The crushing box is provided with a cavity and a feed inlet, and a discharge pipe is provided on the lower side wall. The dust collection device includes a limiting box, a threaded rod, a slider, and a dust collection head. The limiting box is provided with a groove, and a connecting pipe with a pump is provided at the rear end of the dust collection head. The connecting pipe passes through the slider and the upper side wall of the limiting box. A through hole is provided on the rear side wall of the crushing box. The dust collection head is in the cavity, and the connecting pipe passes through the through hole and is slidably connected to it.

[0004] Traditional crushing processes for flexible, highly elastic long plastic sheets typically employ manual feeding. The sheet ends are inserted into two opposing rotating crushing rollers, where the meshing and continuous shearing action of the roller surfaces causes the sheet to gradually settle and be crushed as a whole. However, due to the material's inherent flexibility and high elasticity, once the feeding end is pulled by the roller teeth, a low-frequency, high-amplitude whip-tail vibration is generated at the far end. This phenomenon not only leads to a surge in instantaneous impact load, causing short-term damage such as dynamic imbalance of the cutter rollers and micro-vibration wear of bearing seals, but also poses a hidden danger to the long-term reliable operation of the equipment.

[0005] Therefore, the present invention provides a device for crushing and recycling elastic plastic products to solve the problems mentioned in the background art. Summary of the Invention

[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides an elastic plastic product crushing and recycling device, which includes a frame and two crushing rollers rotatably installed inside the frame. A recycling box is movably installed inside the frame and is located directly below the crushing rollers. A plastic product plate is placed between the two crushing rollers. A second anti-vibration component and a first anti-vibration component are movably installed above the frame. The second anti-vibration component and the first anti-vibration component are components made of the same structure. The second anti-vibration component and the first anti-vibration component are respectively located on both sides of the upper end of the plastic product plate to prevent whip-tail vibration of the upper end when the lower end of the plastic product plate is crushed. The vibration damping component includes a vibration damping structure and a bracket that mounts the vibration damping structure above the frame. The bracket drives the vibration damping structure to move along the side of an adjacent plastic product plate. The vibration damping structure includes a positioning cylinder fixedly connected to the bracket and a lower pressure roller rotatably installed at the lower angle of the positioning cylinder. The lower pressure roller and the positioning cylinder are kept in a relatively fixed position. An upper pressure roller is rotatably installed at the upper angle of the positioning cylinder. The upper pressure roller moves up and down on one side of the positioning cylinder. The centers of the upper pressure roller and the lower pressure roller are always on the same vertical axis.

[0007] Preferably, a connecting rod is fixedly installed on the side of the vibration damping structure, and a rotating telescopic component is fixedly installed below the connecting rod. The rotating telescopic component is movably installed above the frame and is used to drive the connecting rod and the vibration damping structure to rotate and rise.

[0008] Preferably, both ends of the upper and lower pressure rollers are equipped with telescopic fixing strips, with the upper pressure roller rotatably mounted above the telescopic fixing strips and the lower pressure roller rotatably mounted below the telescopic fixing strips.

[0009] Preferably, end shaft two is fixedly installed at both ends of the positioning cylinder, and end shaft three is fixedly installed at both ends of the lower pressure roller. The end of end shaft three passes through the positioning connecting rod and is rotatably installed inside the lower end of the telescopic fixing strip. End shaft two is fixedly connected to the end of the connecting rod and the end of the positioning connecting rod, and the end of the positioning connecting rod on the outside of end shaft three is fixedly connected to the lower end of the telescopic fixing strip.

[0010] Preferably, both ends of the upper pressure roller are provided with sleeve grooves, and a connecting shaft is installed inside each sleeve groove. Both ends of the upper pressure roller are provided with end shafts, and the two end shafts are rotatably installed inside the upper end of the corresponding telescopic fixing strip.

[0011] Preferably, a telescopic drive rod is rotatably installed between the upper pressure roller and the positioning cylinder, and the telescopic drive rod rotates and extends to adjust the distance between the upper pressure roller and the positioning cylinder.

[0012] Preferably, both ends of the telescopic drive rod are equipped with connecting sleeves. One end of the connecting sleeve is movably fitted onto the outside of the connecting shaft, and the other end of the connecting sleeve is rotatably installed inside the positioning cylinder.

[0013] Preferably, the positioning cylinder has an inner cavity groove inside, and arc-shaped grooves are formed at both ends of the positioning cylinder. The two arc-shaped grooves are connected to the inner cavity groove, and the connecting sleeve at one end is rotatably installed inside the inner cavity groove, and the connecting sleeve rotates through the arc-shaped groove.

[0014] Preferably, a rotating shaft is rotatably mounted inside the inner cavity groove, and one end of the connecting sleeve is rotatably adjusted outside the rotating shaft.

[0015] Preferably, two sets of rotating shafts are provided, a fixing ring is fixedly installed at the center of the inner cavity groove, a double-headed motor is fixedly installed inside the fixing ring, the two ends of the double-headed motor are connected to the two rotating shafts, and two corresponding connecting sleeves are fixedly sleeved on the outside of the two rotating shafts.

[0016] The beneficial effects of this invention are as follows: 1. The elastic plastic product crushing and recycling device of the present invention allows the operator to insert one end of the flexible and highly elastic plastic product sheet to be crushed between two relatively rotating crushing rollers. The anti-vibration component one and the anti-vibration component two approach and contact the two sides of the far end of the plastic product sheet through the rotating structure, clamping the far end of the plastic product sheet. This can prevent whip-tail vibration of the far end of the plastic product sheet, thereby avoiding the sudden increase of instantaneous impact load, which could cause short-term damage such as dynamic imbalance of the crushing rollers and micro-vibration wear of bearing seals, and also pose a hidden danger to the long-term reliable operation of the equipment. The two crushing rollers crush the plastic product sheet as a whole. The crushed fragments fall into the recycling bin and are collected. The recycled fragments can be processed in subsequent processes.

[0017] 2. The elastic plastic product crushing and recycling device of the present invention can clamp the plastic product plate at the far end of vibration for a long time through the second anti-vibration component and the first anti-vibration component until most of the plastic product plate enters the position between the two crushing rollers for shredding. As the plastic product plate continues to sink, the upper pressure roller can descend vertically to the side of the plastic product plate, reducing the distance between the lower pressure roller and the upper pressure roller, that is, continuing to keep both the upper pressure roller and the lower pressure roller in contact with the side of the plastic product plate, maintaining the anti-vibration operation, until the plastic product plate descends to below the lower pressure roller and is completely crushed by the two crushing rollers.

[0018] 3. The elastic plastic product crushing and recycling device of the present invention, through the vertical spacing adjustment design of the upper and lower pressure rollers, allows the plastic product sheet to be clamped and conveyed by the two upper and lower pressure rollers for a long time. The plastic product sheet continues to descend until it is freed from the clamping and conveying operation of the two lower pressure rollers. At this time, only a small part of the plastic product sheet remains, which can be quickly settled between the two crushing rollers for shredding. Attached Figure Description

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] Figure 1 This is a three-dimensional view of the entire invention; Figure 2 This is a three-dimensional schematic diagram of the plastic product plate and the crushing roller in this invention; Figure 3 This is a three-dimensional schematic diagram of vibration damping component one and vibration damping component two in this invention; Figure 4 This is a schematic view of one side of the vibration damping component in this invention; Figure 5 This is a three-dimensional schematic diagram of the vibration damping component in this invention; Figure 6 This is a three-dimensional schematic diagram of the positioning cylinder, upper pressure roller, and lower pressure roller in this invention; Figure 7 This is a three-dimensional schematic diagram of the positioning cylinder and telescopic drive rod in this invention; Figure 8 This is a three-dimensional schematic diagram of the dual-head motor and rotating shaft in this invention.

[0021] In the diagram: 1. Frame; 2. Crushing roller; 3. Recycling bin; 4. Plastic product board; 5. Anti-vibration component one; 6. Anti-vibration component two; 7. Anti-vibration structure; 71. Positioning cylinder; 711. End shaft two; 712. Inner cavity groove; 713. Arc groove; 714. Rotating shaft; 715. Fixing ring; 716. Dual-head motor; 72. Upper pressure roller; 721. Sleeve groove; 722. Connecting shaft; 723. End shaft one; 73. Lower pressure roller; 731. End shaft three; 74. Telescopic fixing strip; 75. Telescopic drive rod; 751. Connecting sleeve; 76. Positioning connecting rod; 8. Connecting rod; 9. Rotating telescopic component. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0023] Example 1: As Figures 1-4 As shown, an embodiment of the present invention provides a device for crushing and recycling elastic plastic products, including a frame 1 and two crushing rollers 2 rotatably mounted inside the upper part of the frame 1. A recycling box 3 is movably mounted inside the lower part of the frame 1, and the recycling box 3 is located directly below the crushing rollers 2. A plastic product plate 4 is placed between the two crushing rollers 2. A second vibration damping component 6 and a first vibration damping component 5 are movably mounted above the frame 1. The second vibration damping component 6 and the first vibration damping component 5 are components made of the same structure. The second vibration damping component 6 and the first vibration damping component 5 are located on both sides of the upper end of the plastic product plate 4, respectively, to prevent the upper end of the plastic product plate 4 from whipping when the lower end of the plastic product plate 4 is crushed. The vibration damping component 5 includes a vibration damping structure 7 and a bracket that mounts the vibration damping structure 7 on the frame 1. The bracket drives the vibration damping structure 7 to move along the side of the adjacent plastic product plate 4. The vibration damping structure 7 includes a positioning cylinder 71 fixedly connected to the bracket and a lower pressure roller 73 rotatably installed in the lower angle direction of the positioning cylinder 71. The lower pressure roller 73 and the positioning cylinder 71 are kept in a relatively fixed position. An upper pressure roller 72 is rotatably installed in the upper angle direction of the positioning cylinder 71. The upper pressure roller 72 moves up and down on one side of the positioning cylinder 71. The centers of the upper pressure roller 72 and the lower pressure roller 73 are always on the same vertical axis.

[0024] Specifically, in the initial state, anti-vibration components 5 and 6 are moved away from the vertical surface between the two crushing rollers 2 via a rotating structure. At this time, the operator can insert one end of the flexible and highly elastic plastic product plate 4 to be crushed between the two relatively rotating crushing rollers 2 for crushing. At the same time, anti-vibration components 5 and 6 approach and contact the two sides of the far end of the plastic product plate 4 through the rotating structure, clamping the far end of the plastic product plate 4. This can prevent whip-tail vibration at the far end of the plastic product plate 4, thereby avoiding a sudden increase in instantaneous impact load, which could cause short-term damage such as dynamic imbalance of the crushing rollers 2 and micro-vibration wear of bearing seals, and also pose a hidden danger to the long-term reliable operation of the equipment. As the two crushing rollers 2 continue to rotate, the plastic product plate 4 gradually descends and is crushed as a whole by the meshing of the roller surfaces and the continuous shearing action. At this time, the lower pressure roller 73 and the upper pressure roller 72, which are in contact with the side of the plastic product plate 4, will rotate without obstructing the plastic product. As the plastic product plate 4 descends, the vibration damping structure 7 also descends synchronously with the lifting structure. That is, the vibration damping component 6 and the vibration damping component 5 can clamp the far end of the plastic product plate 4 for a long time until most of the plastic product plate 4 enters the position between the two crushing rollers 2 for shredding. As the plastic product plate 4 continues to sink, the upper pressure roller 72 can descend vertically on the side of the plastic product plate 4, reducing the distance between the lower pressure roller 73 and the upper pressure roller 72. That is, the upper pressure roller 72 and the lower pressure roller 73 continue to be in contact with the side of the plastic product plate 4 to maintain the vibration damping work until the plastic product plate 4 descends below the lower pressure roller 73 and is completely crushed by the two crushing rollers 2. Since the recycling box 3 is installed directly below the two crushing rollers 2, as the two crushing rollers 2 crush the plastic product plate 4 as a whole, the crushed fragments will fall into the recycling box 3 and be collected. The recycled fragments can be processed in subsequent processes.

[0025] like Figures 3-6 As shown, a connecting rod 8 is fixedly installed on the side of the vibration damping structure 7, and a rotating telescopic component 9 is fixedly installed below the connecting rod 8. The rotating telescopic component 9 is movably installed above the frame 1 and is used to drive the connecting rod 8 and the vibration damping structure 7 to rotate and rise.

[0026] Both ends of the upper pressure roller 72 and the lower pressure roller 73 are equipped with telescopic fixing strips 74. The upper pressure roller 72 is rotatably mounted above the telescopic fixing strips 74, and the lower pressure roller 73 is rotatably mounted below the telescopic fixing strips 74.

[0027] The two ends of the positioning cylinder 71 are fixedly installed with end shaft 2 711, and the two ends of the lower pressure roller 73 are fixedly installed with end shaft 3 731. The end of end shaft 3 731 passes through the positioning connecting rod 76 and is rotatably installed inside the lower end of the telescopic fixing strip 74. End shaft 2 711 is fixedly connected to the end of the connecting rod 8 and the positioning connecting rod 76. The end of the positioning connecting rod 76 on the outside of end shaft 3 731 is fixedly connected to the lower end of the telescopic fixing strip 74.

[0028] Specifically, the vibration damping structure 7 can rotate through the rotational cooperation of the rotating telescopic component 9, thereby moving away from or closer to the side of the plastic product plate 4. Since the vibration damping component 1 5 and the vibration damping component 2 6 are components made of the same structure, when one end of the plastic product plate 4 is inserted between the two crushing rollers 2, the vibration damping structures 7 set in the vibration damping component 1 5 and the vibration damping component 2 6 rotate towards the side of the plastic product plate 4 through the rotational function of the rotating telescopic component 9, until the two vibration damping structures 7 contact the two sides of the plastic product plate 4. At this time, the two vibration damping structures 7 clamp and convey the top of the plastic product plate 4. As the plastic product plate 4... As the plastic product plate 4 descends, the two anti-vibration structures 7 descend synchronously via the rotating telescopic component 9, always clamping the top of the plastic product plate 4 to perform anti-vibration work. When the two anti-vibration structures 7 descend to their limit positions, the upper pressure roller 72 and the lower pressure roller 73 are rotatably installed inside the telescopic fixing strip 74. That is, the descent of the plastic product plate 4 will drive the upper pressure roller 72 and the lower pressure roller 73 to rotate, avoiding the situation where the upper pressure roller 72 and the lower pressure roller 73 clamp too tightly, making it difficult for the plastic product plate 4 to descend. The positioning cylinder 71 is fixedly connected to the connecting rod 8, and the positioning cylinder 71 is relatively fixed to the lower pressure roller 73 through the setting of the positioning connecting rod 76.

[0029] Example 2: Figures 6-8 As shown in the comparative embodiment one, another embodiment of the present invention is as follows: both ends of the upper pressure roller 72 are provided with sleeve grooves 721, and a connecting shaft 722 is installed inside the sleeve grooves 721. Both ends of the upper pressure roller 72 are provided with end shafts 723, and the two end shafts 723 are rotatably installed inside the upper end of the corresponding telescopic fixing strip 74.

[0030] A telescopic drive rod 75 is rotatably mounted between the upper pressure roller 72 and the positioning cylinder 71. The telescopic drive rod 75 rotates and extends to adjust the distance between the upper pressure roller 72 and the positioning cylinder 71.

[0031] A telescopic drive rod 75 is rotatably mounted between the upper pressure roller 72 and the positioning cylinder 71. The telescopic drive rod 75 rotates and extends to adjust the distance between the upper pressure roller 72 and the positioning cylinder 71.

[0032] Both ends of the telescopic drive rod 75 are equipped with connecting sleeves 751. One end of the connecting sleeve 751 is movably fitted on the outside of the connecting shaft 722, and the other end of the connecting sleeve 751 is rotatably installed inside the positioning cylinder 71.

[0033] The positioning cylinder 71 has an inner cavity groove 712 inside, and arc-shaped grooves 713 are provided at both ends of the positioning cylinder 71. The two arc-shaped grooves 713 are connected to the inner cavity groove 712. One end of the connecting sleeve 751 is rotatably installed inside the inner cavity groove 712, and the connecting sleeve 751 is rotated through the arc-shaped groove 713.

[0034] The inner cavity groove 712 has a rotating shaft 714 rotatably mounted inside, with one end connected to the sleeve 751 for rotation adjustment on the outside of the rotating shaft 714.

[0035] Two sets of rotating shafts 714 are provided. A fixing ring 715 is fixedly installed at the center of the inner cavity groove 712. A double-headed motor 716 is fixedly installed inside the fixing ring 715. The two ends of the double-headed motor 716 are connected to the two rotating shafts 714. Two corresponding connecting sleeves 751 are fixedly sleeved on the outside of the two rotating shafts 714.

[0036] Specifically, as the plastic product plate 4 descends, the rotating telescopic component 9 also drives the two anti-vibration structures 7 to descend until they reach their limit positions. At this point, the telescopic fixing strips 74 are fully extended. As the plastic product plate 4 continues to descend, the horizontal height of the top of the plastic product plate 4 will be lower than the horizontal height of the upper pressure roller 72. At this time, the telescopic drive rod 75 retracts, and simultaneously the dual-head motor 716 drives the rotating shaft 714 and the two telescopic drive rods 75 to rotate clockwise, causing the two telescopic fixing strips 74 to retract. This allows the upper pressure roller 72 to descend vertically, reducing the distance between the lower pressure roller 73 and the upper pressure roller 72. At this time, the upper pressure roller 72 descends along with the sinking of the plastic product plate 4, meaning that the upper pressure roller 72 and the lower pressure roller 73 are still in contact with the side of the plastic product plate 4. After the telescopic fixing strips 74 retract to their limit, the plastic... The product plate 4 will continue to descend, gradually moving away from the upper pressure roller 72 and the lower pressure roller 73 until it is completely crushed by the two crushing rollers 2, thus completing the crushing of the entire plastic product. In this device, the anti-vibration structure 7 can minimize the whiptail vibration at the far end of the plastic product plate 4. Through the vertical spacing adjustment design of the upper pressure roller 72 and the lower pressure roller 73, the plastic product plate 4 is kept in the clamping and conveying work of the two upper pressure rollers 72 and the lower pressure roller 73 for a long time. The plastic product plate 4 continues to descend until it is separated from the clamping and conveying work of the two lower pressure rollers 73. At this time, only a small part of the plastic product plate 4 remains, which can quickly sink to the position between the two crushing rollers 2 for tearing. This avoids the sudden increase of instantaneous impact load, which may cause short-term damage such as dynamic imbalance of the crushing roller 2 and micro-vibration wear of bearing seals, and may also pose a hidden danger to the long-term reliable operation of the equipment.

[0037] Working principle: In the initial state, anti-vibration components 5 and 6 are moved away from the vertical surface between the two crushing rollers 2 by the rotating structure. At this time, the operator can insert one end of the flexible and highly elastic plastic product plate 4 to be crushed between the two relatively rotating crushing rollers 2 for crushing. At the same time, anti-vibration components 5 and 6 approach and contact the two sides of the far end of the plastic product plate 4 through the rotating structure, clamping the far end of the plastic product plate 4. This can prevent whip-tail vibration of the far end of the plastic product plate 4, thereby avoiding the sudden increase of instantaneous impact load, which could cause short-term damage such as dynamic imbalance of the crushing rollers 2 and micro-vibration wear of bearing seals, and also pose a hidden danger to the long-term reliable operation of the equipment. As the two crushing rollers 2 continue to rotate, the roller surfaces mesh and continuously shear... The action causes the plastic product plate 4 to gradually descend and complete the overall crushing. At this time, the lower pressure roller 73 and the upper pressure roller 72, which are in contact with the side of the plastic product plate 4, will rotate, without hindering the descent of the plastic product plate 4. As the plastic product plate 4 descends, the vibration damping structure 7 can also descend synchronously through the cooperation of the lifting structure. That is, the vibration damping component 2 6 and the vibration damping component 1 5 can clamp the far end of the plastic product plate 4 for a long time until most of the plastic product plate 4 enters the position between the two crushing rollers 2 for shredding. As the plastic product plate 4 continues to sink, the upper pressure roller 72 can descend vertically on the side of the plastic product plate 4, reducing the distance between the lower pressure roller 73 and the upper pressure roller 72, that is, continuing to maintain the contact between the upper pressure roller 72 and the lower pressure roller 73 and the side of the plastic product plate 4, maintaining... The anti-vibration operation continues until the plastic product board 4 descends below the lower pressure roller 73 and is completely crushed by the two crushing rollers 2. Since the recycling box 3 is installed directly below the two crushing rollers 2, as the two crushing rollers 2 crush the plastic product board 4 as a whole, the resulting fragments fall into the recycling box 3 for collection. The collected fragments can be processed in subsequent processes. As the plastic product board 4 descends, the rotating telescopic component 9 also drives the two anti-vibration structures 7 to descend until they reach their limit position. At this point, the telescopic fixing bar 74 is fully extended. As the plastic product board 4 continues to descend, the horizontal height of the top of the plastic product board 4 will be lower than the horizontal height of the upper pressure roller 72. At this point, the telescopic drive rod 75 retracts the bar. Simultaneously, the dual-head motor 716 drives the rotating shaft 714 and the two telescopic drive rods 75 to rotate clockwise, causing the two telescopic fixing bars 74 to retract. This allows the upper pressure roller 72 to descend vertically, reducing the distance between the lower pressure roller 73 and the upper pressure roller 72. At this time, the upper pressure roller 72 descends along with the sinking of the plastic product plate 4. That is, the upper pressure roller 72 and the lower pressure roller 73 are still in contact with the side of the plastic product plate 4. After the telescopic fixing bars 74 retract to their limit, the plastic product plate 4 will continue to descend, gradually moving away from the upper pressure roller 72 and the lower pressure roller 73 until it is completely crushed by the two crushing rollers 2, thus completing the crushing of the entire plastic product. In this device, the anti-vibration structure 7 can minimize the whiptail vibration at the far end of the plastic product plate 4.By adjusting the vertical distance between the upper pressure roller 72 and the lower pressure roller 73, the plastic product sheet 4 is kept in the clamping and conveying position of the two upper pressure rollers 72 and the lower pressure roller 73 for an extended period. The plastic product sheet 4 continues to descend until it is released from the clamping and conveying position of the two lower pressure rollers 73. At this point, only a small portion of the plastic product sheet 4 remains, allowing it to quickly settle between the two crushing rollers 2 for shredding. This minimizes the risk of a sudden surge in impact load, which could cause short-term damage such as dynamic imbalance of the crushing rollers 2 and micro-vibration wear of the bearing seals, and could also pose a threat to the long-term reliable operation of the equipment.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for crushing and recycling elastic plastic products, comprising a frame (1) and two crushing rollers (2) rotatably mounted inside the frame (1) at the top, wherein a recycling box (3) is movably mounted inside the frame (1) at the bottom, the recycling box (3) being located directly below the crushing rollers (2), characterized in that: A plastic product plate (4) is placed between the two crushing rollers (2). A second anti-vibration component (6) and a first anti-vibration component (5) are movably installed above the frame (1). The second anti-vibration component (6) and the first anti-vibration component (5) are components made of the same structure. The second anti-vibration component (6) and the first anti-vibration component (5) are respectively located on both sides of the upper end of the plastic product plate (4) to prevent whip-tail vibration at the upper end when the lower end of the plastic product plate (4) is crushed. The vibration damping component 1 (5) includes a vibration damping structure (7) and a bracket for mounting the vibration damping structure (7) on the frame (1). The bracket drives the vibration damping structure (7) to move along the side of the adjacent plastic product plate (4). The vibration damping structure (7) includes a positioning cylinder (71) fixedly connected to the bracket and a lower pressure roller (73) rotatably installed in the lower angle direction of the positioning cylinder (71). The lower pressure roller (73) and the positioning cylinder (71) are kept in a relatively fixed position. An upper pressure roller (72) is rotatably installed in the upper angle direction of the positioning cylinder (71). The upper pressure roller (72) performs lifting and lowering operations on one side of the positioning cylinder (71). The centers of the upper pressure roller (72) and the lower pressure roller (73) are always on the same vertical axis.

2. The elastic plastic product crushing and recycling device according to claim 1, characterized in that: A connecting rod (8) is fixedly installed on the side of the vibration damping structure (7), and a rotating telescopic component (9) is fixedly installed below the connecting rod (8). The rotating telescopic component (9) is movably installed above the frame (1). The rotating telescopic component (9) is used to drive the connecting rod (8) and the vibration damping structure (7) to rotate and rise.

3. The elastic plastic product crushing and recycling device according to claim 1, characterized in that: Both ends of the upper pressure roller (72) and the lower pressure roller (73) are equipped with telescopic fixing strips (74). The upper pressure roller (72) is rotatably installed above the telescopic fixing strips (74), and the lower pressure roller (73) is rotatably installed below the telescopic fixing strips (74).

4. The elastic plastic product crushing and recycling device according to claim 2, characterized in that: The two ends of the positioning cylinder (71) are fixedly installed with end shaft two (711), and the two ends of the lower pressure roller (73) are fixedly installed with end shaft three (731). The end of the end shaft three (731) passes through the positioning connecting rod (76) and is rotatably installed inside the lower end of the telescopic fixing strip (74). The end shaft two (711) is fixedly connected to the end of the connecting rod (8) and the end of the positioning connecting rod (76). The end of the positioning connecting rod (76) on the outside of the end shaft three (731) is fixedly connected to the lower end of the telescopic fixing strip (74).

5. The elastic plastic product crushing and recycling device according to claim 1, characterized in that: Both ends of the upper pressure roller (72) are provided with sleeve grooves (721), and a connecting shaft (722) is installed inside the sleeve grooves (721). Both ends of the upper pressure roller (72) are provided with end shafts (723), and the two end shafts (723) are rotatably installed inside the upper end of the corresponding telescopic fixing strip (74).

6. The elastic plastic product crushing and recycling device according to claim 5, characterized in that: A telescopic drive rod (75) is rotatably installed between the upper pressure roller (72) and the positioning cylinder (71). The telescopic drive rod (75) rotates and extends to adjust the distance between the upper pressure roller (72) and the positioning cylinder (71).

7. The elastic plastic product crushing and recycling device according to claim 6, characterized in that: Both ends of the telescopic drive rod (75) are equipped with connecting sleeves (751). One end of the connecting sleeve (751) is movably fitted on the outside of the connecting shaft (722), and the other end of the connecting sleeve (751) is rotatably installed inside the positioning cylinder (71).

8. The elastic plastic product crushing and recycling device according to claim 7, characterized in that: The positioning cylinder (71) has an inner cavity groove (712) inside, and arc grooves (713) are provided at both ends of the positioning cylinder (71). The two arc grooves (713) are connected to the inner cavity groove (712). The connecting sleeve (751) at one end is rotatably installed inside the inner cavity groove (712), and the connecting sleeve (751) rotates through the arc groove (713).

9. The elastic plastic product crushing and recycling device according to claim 8, characterized in that: The inner cavity groove (712) is rotatably mounted with a rotating shaft (714), and the connecting sleeve (751) at one end is rotatably adjusted on the outside of the rotating shaft (714).

10. A device for crushing and recycling elastic plastic products according to claim 9, characterized in that: Two sets of rotating shafts (714) are provided. A fixing ring (715) is fixedly installed at the center of the inner cavity groove (712). A double-headed motor (716) is fixedly installed inside the fixing ring (715). The two ends of the double-headed motor (716) are connected to the two rotating shafts (714). Two corresponding connecting sleeves (751) are fixedly sleeved on the outside of the two rotating shafts (714).

Citation Information

Patent Citations

  • Plastic product crushing device

    CN223290121U

  • Crushing and pressing device for plastic product recycling

    CN109366803A

  • Plastic recycling and crushing device for production

    CN112405948A

  • Plastic film processing waste recovery device

    CN119610487A

  • Leftover material crushing and recycling device of PVC (polyvinyl chloride) film calender

    CN215094953U