A regenerative crushing device for PET plastic production

By using the shredding blades and shredding wheel assembly together, the problem of incomplete plastic shredding is solved, and particle uniformity and work efficiency are improved.

CN224527709UActive Publication Date: 2026-07-21JIANGSU PLITE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU PLITE TECH CO LTD
Filing Date
2025-08-02
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In existing technologies, plastic pulverization is incomplete, resulting in inconsistent particle sizes, which leads to low work efficiency and increased time costs.

Method used

The device uses a combination of pulverizing blades and a pulverizing wheel assembly. After initial pulverization by the pulverizing blades, larger particles continue to be pulverized, while smaller particles enter the pulverizing wheel assembly for fine grinding, ensuring particle uniformity.

Benefits of technology

This improved the uniformity of plastic granules and increased work efficiency, while reducing time costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224527709U_ABST
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Abstract

The utility model provides a kind of regenerative crushing device for PET plastic production, including crushing box and set up in the top of crushing box cover, the top of one side of cover is fixedly connected to the top of baffle one, the upper end of baffle one is fixedly connected to the bottom of baffle two, the inside wall of crushing box is fixedly connected with the one end of cover and baffle two, the other end of cover and baffle two is fixedly connected with the one side of baffle one, the other side of baffle one is provided with injection port, the bottom of crushing box is provided with discharge port, the inside of crushing box is respectively provided with crushing blade, crushing wheel subassembly and drive crushing blade, crushing wheel subassembly and carry out rotary motion of crushing device, by crushing blade and crushing wheel subassembly cooperation, plastic product raw material first enters crushing blade driven by transmission member, makes raw material to carry out preliminary crushing, again after fine crushing of crushing wheel subassembly, ensure that particle is uniform, applicable to a variety of raw materials, improve work efficiency, reduce time cost.
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Description

Technical Field

[0001] This utility model relates to the field of plastic production technology, and in particular to a recycling and crushing device for PET plastic production. Background Technology

[0002] Plastics are materials made primarily of high molecular weight polymers, with the addition of plasticizers, stabilizers, and other additives. They are lightweight, durable, easy to process, and inexpensive. The first synthetic plastic, celluloid, was invented in 1869. With the development of the chemical industry in the 20th century, the variety of plastics has greatly increased. Today, they are widely used in many fields such as packaging, building materials, and electronics, profoundly impacting human production and life, but also bringing environmental problems such as white pollution.

[0003] Existing technologies typically use a cutting blade to directly shred plastic bottles or other plastic products, resulting in incomplete shredding, inconsistent particle sizes, which makes subsequent work inconvenient, reduces work efficiency, and wastes time.

[0004] Therefore, it is necessary to provide a new type of recycling and pulverizing device for PET plastic production to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a recycling and crushing device for PET plastic production.

[0006] This utility model provides a recycling and crushing device for PET plastic production, including a crushing box and a cover set on the top of the crushing box. One side of the cover is fixedly connected to the top of a first partition, and the bottom of the first partition is fixedly connected to the top of a second partition. One end of the cover and one end of the second partition are fixedly connected to the inner wall of the crushing box, and the other end of the cover and one end of the second partition are fixedly connected to one side of the first partition. A feeding port is provided on the other side of the first partition, and a discharge port is provided at the bottom of the crushing box. The inside of the crushing box is respectively provided with crushing blades, crushing wheel assembly, and a crushing device that drives the crushing blades and crushing wheel assembly to rotate.

[0007] Preferably, the crushing wheel assembly includes a main crushing wheel, a driven crushing wheel, a first screen, a second screen, and a gear wall. The driven crushing wheel is disposed on the outer side of the main crushing wheel, and the inner side of the driven crushing wheel meshes with the outer side of the main crushing wheel. The gear wall is disposed inside the crushing box, and the outer side of the driven crushing wheel meshes with the gear wall. The bottom end of the first screen is movably connected to the upper end of the main crushing wheel and the driven crushing wheel, and the bottom end of the main crushing wheel and the driven crushing wheel is movably connected to the upper end of the second screen.

[0008] Preferably, the crushing device includes a transmission component, a connecting column, and crushing blades. The middle end of the connecting column is fixedly connected to one end of the crushing blades, and the bottom end of the connecting column is fixedly connected to the upper surface of the main crushing wheel. A screen is disposed below the crushing blades.

[0009] Preferably, the transmission component includes a motor, a belt, a first pulley, a second pulley, and a connecting column. The output end of the motor is fixedly connected to one side of the first pulley, and the other end of the motor is fixedly connected to the upper end of the second partition. One end of the second pulley is fixedly connected to the top of the connecting column. The first pulley and the second pulley are connected by a belt, and the bottom end of the second pulley is fixedly connected to the top of the connecting column.

[0010] Preferably, the main crushing wheel and the slave crushing wheel are of the same size.

[0011] Preferably, the connecting column is provided through the partition plate 2 and the screen 1, and the connecting column is movably connected to the partition plate 2 and the screen 2.

[0012] Preferably, the first pulley and the second pulley are of the same size.

[0013] Preferably, the crushing blades are provided in a total of five and arranged in a ring along the surface of the connecting column.

[0014] Compared with related technologies, the recycling and crushing device for PET plastic production provided by this utility model has the following advantages: This utility model provides a recycling and crushing device for PET plastic production. In specific implementation, the crushing blades and crushing wheel assembly are used together. The raw materials for plastic products enter from the inlet and first enter the crushing blades driven by the transmission component. During the initial crushing by the crushing blades, larger particles are further crushed by the crushing blades, while smaller particles pass through screen one and enter the crushing wheel assembly in the lower layer. They are then ground and finely crushed through the gaps between the teeth of the crushing wheel assembly and discharged from screen two. This initial crushing of the raw materials reduces the load for subsequent secondary fine crushing, ensures uniform particle size, is suitable for various raw materials, improves work efficiency, and reduces time costs. Attached Figure Description

[0015] Figure 1 A schematic diagram of a preferred embodiment of a recycling and crushing device for PET plastic production provided by this utility model; Figure 2 This is a schematic diagram of the internal structure of the pulverizing box provided by this utility model; Figure 3 A top view of the shredder blade provided by this utility model; Figure 4 A schematic diagram of the crushing wheel assembly provided by this utility model; Figure 5 A schematic diagram of the bottom discharge port structure of the crushing box provided by this utility model.

[0016] The following are the labels in the diagram: 1. Crushing box; 101. Gear wall; 2. Cover; 3. Partition 1; 4. Motor; 401. Belt pulley 1; 402. Belt; 403. Connecting column; 404. Crushing blade; 405. Screen 1; 406. Main crushing wheel; 407. Secondary crushing wheel; 408. Screen 2; 409. Belt pulley 2; 410. Partition 2; 411. Crushing wheel assembly; 5. Feed inlet; 6. Discharge outlet. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Please refer to the following: Figures 1-5 ,in, Figure 1 A schematic diagram of a preferred embodiment of a recycling and crushing device for PET plastic production provided by this utility model; Figure 2 This is a schematic diagram of the internal structure of the pulverizing box provided by this utility model; Figure 3 A top view of the shredder blade provided by this utility model; Figure 4 A schematic diagram of the crushing wheel assembly provided by this utility model; Figure 5 A schematic diagram of the bottom discharge port structure of the crushing box provided by this utility model.

[0019] In the specific implementation process, such as Figures 1-5As shown, a recycling and crushing device for PET plastic production includes a crushing chamber 1 and a cover 2 disposed on top of the crushing chamber 1. One side of the cover 2 is fixedly connected to the top of a first partition 3, and the bottom of the first partition 3 is fixedly connected to the top of a second partition 410. One end of the cover 2 and the second partition 410 are both fixedly connected to the inner wall of the crushing chamber 1, and the other end of the cover 2 and the second partition 410 are both fixedly connected to one side of the first partition 3. A feeding port 5 is provided on the other side of the first partition 3, and a discharge port 6 is provided at the bottom of the crushing chamber 1. The interior of the crushing chamber 1 is respectively provided with crushing blades 404, crushing wheel assembly 411, and... A pulverizing device that drives the pulverizing blades 404 and the pulverizing wheel assembly 411 to rotate. The pulverizing wheel assembly 411 includes a main pulverizing wheel 406, a driven pulverizing wheel 407, a first screen 405, a second screen 408, and a gear wall 101. The driven pulverizing wheel 407 is arranged on the outer side of the main pulverizing wheel 406, and the inner side of the driven pulverizing wheel 407 meshes with the outer side of the main pulverizing wheel 406. The gear wall 101 is arranged inside the pulverizing box 1, and the outer side of the driven pulverizing wheel 407 meshes with the gear wall 101. The bottom end of the first screen 405 is movably connected to the upper end of the main pulverizing wheel 406 and the driven pulverizing wheel 407. 6. The crushing device includes a transmission component, a connecting column 403, and a crushing blade 404. The middle end of the connecting column 403 is fixedly connected to one end of the crushing blade 404, and the bottom end of the connecting column 403 is fixedly connected to the upper surface of the main crushing wheel 406. The first screen 405 is located below the crushing blade 404. The transmission component includes a motor 4, a belt, a first pulley 401, a second pulley 409, and a connecting column 403. The output end of the motor 4 is fixedly connected to one side of the first pulley 401, and the other end of the motor 4 is fixedly connected to the upper end of the second partition 410. The connection is as follows: one end of pulley 2 409 is fixedly connected to the top of the connecting post 403; pulley 1 401 and pulley 2 409 are connected by a belt; the bottom end of pulley 2 409 is fixedly connected to the top of the connecting post 403; the main crushing wheel 406 and the driven crushing wheel 407 are the same size; the connecting post 403 is installed through the partition 2 410 and the screen 1 405, and the connecting post 403 is movably connected to the partition 2 410 and the screen 2 408; pulley 1 401 and pulley 2 409 are the same size; a total of five crushing blades 404 are provided and arranged in a ring along the surface of the connecting post 403.

[0020] The working principle of this utility model is as follows: The motor 4 is started, and its output end is fixedly connected to one side of pulley 401. The other end of the motor 4 is fixedly connected to the upper end of partition 410. One end of pulley 409 is fixedly connected to the top of connecting post 403. Pulley 401 and pulley 409 are connected by belt 402. The bottom end of pulley 409 is fixedly connected to the top of connecting post 403. Connecting post 403 is installed through partition 410 and screen 405, and is movably connected to both partition 410 and screen 408. Pulley 401 drives connecting post 403 to move. Crushing blade 404 is installed. On the middle surface of the connecting column 403, the bottom end of the connecting column 403 is fixedly connected to the top end of the main crushing wheel 406. Five slave crushing wheels 407 are provided on the outer side of the main crushing wheel 406. The main crushing wheel 406 and the slave crushing wheels 407 mesh with each other, and the slave crushing wheels 407 mesh with the gear wall 101. Thus, the connecting column 403 drives the main crushing wheel 406 to rotate. During the initial crushing by the crushing blades 404, larger particles are further crushed by the crushing blades 404, while smaller particles pass through the screen 1 405 and enter the lower crushing wheel assembly 411. They are then ground and finely crushed through the gaps between the teeth of the crushing wheel assembly 411 and discharged through the screen 2 408.

[0021] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0022] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A recycling and pulverizing device for PET plastic production, characterized in that, The device includes a crushing box (1) and a cover (2) set on the top of the crushing box (1). One side of the cover (2) is fixedly connected to the top of the partition (3), and the bottom of the partition (3) is fixedly connected to the top of the partition (410). One end of the cover (2) and the partition (410) are fixedly connected to the inner wall of the crushing box (1). The other end of the cover (2) and the partition (410) are fixedly connected to one side of the partition (3). The other side of the partition (3) is provided with a feeding port (5). The bottom of the crushing box (1) is provided with a discharge port (6). The crushing box (1) is provided with crushing blades (404), crushing wheel assembly (411) and a crushing device that drives the crushing blades (404) and crushing wheel assembly (411) to rotate.

2. The recycling and pulverizing device for PET plastic production according to claim 1, characterized in that, The crushing wheel assembly (411) includes a main crushing wheel (406), a secondary crushing wheel (407), a first screen (405), a second screen (408), and a gear wall (101). The secondary crushing wheel (407) is provided on the outside of the main crushing wheel (406), and the inner side of the secondary crushing wheel (407) meshes with the outer side of the main crushing wheel (406). The gear wall (101) is provided inside the crushing box (1), and the outer side of the secondary crushing wheel (407) meshes with the gear wall (101). The bottom end of the first screen (405) is movably connected to the upper end of the main crushing wheel (406) and the secondary crushing wheel (407), and the bottom end of the main crushing wheel (406) and the secondary crushing wheel (407) is movably connected to the upper end of the second screen (408).

3. The recycling and crushing device for PET plastic production according to claim 2, characterized in that, The crushing device includes a transmission component, a connecting column (403), and a crushing blade (404). The middle end of the connecting column (403) is fixedly connected to one end of the crushing blade (404), and the bottom end of the connecting column (403) is fixedly connected to the upper surface of the main crushing wheel (406). A screen (405) is set below the crushing blade (404).

4. A recycling and pulverizing device for PET plastic production according to claim 3, characterized in that, The transmission components include a motor (4), a belt (402), a pulley one (401), a pulley two (409), and a connecting column (403). The output end of the motor (4) is fixedly connected to one side of the pulley one (401), and the other end of the motor (4) is fixedly connected to the upper end of the partition two (410). One end of the pulley two (409) is fixedly connected to the top of the connecting column (403). The pulley one (401) and the pulley two (409) are connected by a belt (402), and the bottom end of the pulley two (409) is fixedly connected to the top end of the connecting column (403).

5. A recycling and pulverizing device for PET plastic production according to claim 4, characterized in that, The main crushing wheel (406) and the secondary crushing wheel (407) are the same size.

6. A recycling and pulverizing device for PET plastic production according to claim 5, characterized in that, The connecting column (403) is installed through the partition plate 2 (410) and the screen 1 (405), and the connecting column (403) is movably connected to the partition plate 2 (410) and the screen 2 (408).

7. A recycling and pulverizing device for PET plastic production according to claim 6, characterized in that, The first pulley (401) and the second pulley (409) are the same size.

8. A recycling and pulverizing device for PET plastic production according to claim 7, characterized in that, There are five shredding blades (404) arranged in a ring along the surface of the connecting column (403).