Thermoplastic rubber particle fine crusher

By using staggered crushing blades and a water spray cooling structure, combined with an automatic mesh cleaning function, the problem of sticking and dust residue during the crushing of thermoplastic rubber particles is solved, improving crushing efficiency and cleaning convenience.

CN223573530UActive Publication Date: 2025-11-21ZHANGJIAGANG KEYUAN POLYMER CO LTD
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Patent Information

Application Number
CN202422703706.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-06
Publication Date
2025-11-21
Estimated Expiration
2034-11-06

AI Technical Summary

Technical Problem

Thermoplastic rubber granules tend to stick to the cutting head during crushing, resulting in poor cutting efficiency. Furthermore, the granules contain dust after crushing, which requires manual cleaning, which is troublesome.

Method used

A thermoplastic rubber granule crusher was designed, which adopts staggered crushing blades and water spray cooling structure, combined with a net bag and motor-driven shaking function to achieve cooling crushing and automatic cleaning.

Benefits of technology

It effectively reduces the viscosity of thermoplastic rubber, improves crushing efficiency, and solves the problem of dust residue through automatic cleaning, simplifying subsequent cleaning steps.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of thermoplastic rubber particles, in particular to a thermoplastic rubber particle fine crusher which comprises a shell, a feeding port is formed in the top end of the shell, a feeding hopper is fixedly connected to the top end of the feeding port, and water spraying heads located on the two sides are fixedly connected to the inner side of the shell. A water spraying head is arranged in the outer shell, and a water pipe penetrating through the outer shell is fixedly connected to one side of the water spraying head, and the feeding port, the feeding hopper, the outer shell, the first motor, the second motor, the first rotating shaft, the first smashing blade, the second rotating shaft, the second smashing blade, the water spraying head, the water pipe, the refrigerator and other components are arranged; a feed hopper and a feed port are arranged to fall between a first crushing blade and a second crushing blade, a first motor and a second motor are arranged to respectively drive a first rotating shaft and a second rotating shaft to rotate, the first rotating shaft drives the first crushing blade to rotate anticlockwise, and the second rotating shaft drives the second crushing blade to rotate clockwise.
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Description

Technical Field

[0001] This utility model relates to the field of thermoplastic rubber granule technology, specifically a thermoplastic rubber granule crusher. Background Technology

[0002] TPR material (Thermo-Plastic-Rubber material) is a type of thermoplastic rubber material. It is a soft thermoplastic rubber material that has the elasticity of rubber but does not require vulcanization and can be directly processed into molding processes (such as injection molding, extrusion, blow molding, etc.). In order to meet different application needs, improve material utilization, improve physical properties, and facilitate storage and transportation, thermoplastic rubber generally needs to be finely crushed by a crusher.

[0003] Thermoplastic rubber granules have high viscosity, which makes them prone to sticking to the cutting head during crushing, resulting in poor cutting efficiency and affecting the fine crushing efficiency. After crushing, due to the viscosity characteristics of thermoplastic rubber itself, some dust will be mixed in the thermoplastic rubber granules, which requires manual cleaning later, which is very troublesome. Therefore, a thermoplastic rubber granule fine crusher is proposed to address the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a thermoplastic rubber granule crusher to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A thermoplastic rubber granule crusher includes a shell with a feed inlet at its top. A feed hopper is fixedly connected to the top of the feed inlet. Water spray heads located on both sides are fixedly connected to the inner side of the shell. A water pipe penetrating the shell is fixedly connected to one side of each water spray head. A cooler is provided at the end of the water pipe away from the water spray head. A first motor located below the water pipe is fixedly connected to the right side of the shell. A first rotating shaft penetrating the shell is fixedly connected to the output end of the first motor. A first crushing blade is fixedly connected to the outer side of the first rotating shaft. A second motor is fixedly connected to the left side of the shell. A second rotating shaft penetrating the shell is fixedly connected to the output end of the second motor. A second crushing blade is fixedly connected to the outer side of the second rotating shaft. A sealing cover is spirally connected to the bottom of the shell, and a drain pipe is provided at the bottom end of the sealing cover.

[0007] Preferably, a third motor located below the second motor is fixedly connected to the left side of the outer casing. The output of the third motor is fixedly connected to a connecting shaft that passes through the outer casing. A first fixing groove is provided at the end of the connecting shaft away from the third motor. A mesh bag located below the first and second crushing blades is provided on the inner side of the outer casing. Second fixing grooves are provided on both sides of the mesh bag. A limiting groove is provided on the right side of the outer casing. A fixing strip is engaged with the first and second fixing grooves. A limiting shaft located inside the limiting groove is fixedly connected at the end of the fixing strip away from the connecting shaft.

[0008] Preferably, there are three of each of the first and second crushing blades, and the first and second crushing blades are arranged alternately on the inner side of the housing.

[0009] Preferably, the outer length of the net is the same as the inner length of the outer shell, and the outer width of the net is only half the inner width of the outer shell.

[0010] Preferably, the cooler and water pipe are a set, there are two sets in total, and the cooler and water pipe are symmetrically arranged on the surface of the spray head.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. In this utility model, the feed inlet, feed hopper, outer shell, first motor, second motor, first rotating shaft, first crushing blade, second rotating shaft, second powder-water blade, water spray head, water pipe, and cooler are configured. The feed hopper and feed inlet allow the material to fall between the first and second crushing blades. The first and second motors drive the first and second rotating shafts to rotate, respectively. The first rotating shaft drives the first crushing blade to rotate counterclockwise, and the second rotating shaft drives the second crushing blade to rotate clockwise. The first and second crushing blades crush the thermoplastic rubber. While the thermoplastic rubber is being crushed, the cooler cools the water passing through it. The cooled water is then sprayed onto the first and second crushing blades through the water pipe and water spray head to further cool the thermoplastic rubber. The low temperature and flowing water reduce the viscosity of the thermoplastic rubber, thus solving the problem that the high viscosity of thermoplastic rubber particles easily causes them to stick to the blade head during crushing, resulting in poor cutting efficiency and affecting the fine crushing efficiency.

[0013] 2. In this utility model, through the components such as a third motor, connecting shaft, first fixing groove, net bag, second fixing groove, limiting groove, fixing strip, limiting shaft, sealing cover, and drain pipe, the thermoplastic rubber particles falling from the first and second crushing blades above will fall into the net bag. The third motor drives the connecting shaft to rotate, and the connecting shaft drives the fixing strip to rotate under the action of the first fixing groove. The fixing strip drives the limiting shaft to rotate in the limiting groove. Under the action of the second fixing groove, the net bag will rotate together with the fixing strip and the limiting shaft. Through the forward and reverse rotation of the third motor, the net bag will shake back and forth. With the shaking of the net bag, the thermoplastic rubber particles inside are evenly washed. Dust and water after washing will be discharged through the drain pipe through the net bag, while the thermoplastic rubber will remain in the net bag. This solves the problem that after crushing, due to the viscosity characteristics of thermoplastic rubber itself, some dust will be mixed in with the thermoplastic rubber particles, which requires a very troublesome manual cleaning. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This utility model Figure 1 A schematic diagram of the structure at point A;

[0016] Figure 3 This is a top view sectional structural diagram of the present invention;

[0017] Figure 4 This is a side view of the mesh structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the left side of the fixing strip structure of this utility model.

[0019] In the diagram: 1. Outer shell; 2. Feed inlet; 3. Feed hopper; 4. Water spray head; 5. Water pipe; 6. Refrigerator; 7. First motor; 8. First rotating shaft; 9. First crushing blade; 10. Second motor; 11. Second rotating shaft; 12. Second crushing blade; 13. Third motor; 14. Connecting shaft; 15. First fixing groove; 16. Net bag; 17. Second fixing groove; 18. Limiting groove; 19. Fixing strip; 20. Limiting shaft; 21. Sealing cover; 22. Drain pipe. Detailed Implementation

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

[0021] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0022] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0023] Please see Figure 1-5 This utility model provides a technical solution:

[0024] A thermoplastic rubber granule crusher includes a shell 1, a feed inlet 2 at the top of the shell 1, a feed hopper 3 fixedly connected to the top of the feed inlet 2, water spray heads 4 fixedly connected to the inner side of the shell 1 on both sides, a water pipe 5 fixedly connected to one side of the water spray head 4 penetrating the shell 1, a cooler 6 provided at the end of the water pipe 5 away from the water spray head 4, a first motor 7 fixedly connected to the right side of the shell 1 below the water pipe 5, a first rotating shaft 8 fixedly connected to the output end of the first motor 7 penetrating the shell 1, a first crushing blade 9 fixedly connected to the outer side of the first rotating shaft 8, a second motor 10 fixedly connected to the left side of the shell 1, a second rotating shaft 11 fixedly connected to the output end of the second motor 10 penetrating the shell 1, a second crushing blade 12 fixedly connected to the outer side of the second rotating shaft 11, and a sealing cover 21 spirally connected to the bottom of the shell 1, with a drain pipe 22 provided at the bottom end of the sealing cover 21.

[0025] A third motor 13, located below the second motor 10, is fixedly connected to the left side of the outer casing 1. The output of the third motor 13 is fixedly connected to a connecting shaft 14 that passes through the outer casing 1. A first fixing groove 15 is provided at the end of the connecting shaft 14 away from the third motor 13. A mesh bag 16 is provided on the inner side of the outer casing 1, located below the first crushing blade 9 and the second crushing blade 12. Second fixing grooves 17 are provided on both sides of the mesh bag 16. A limit groove 18 is provided on the right side of the outer casing 1. A fixing strip 1 is engaged and connected inside the first fixing groove 15 and the second fixing groove 17. 9. The end of the fixing strip 19 away from the connecting shaft 14 is fixedly connected to the limiting shaft 20 located inside the limiting groove 18. There are three of each of the first crushing blade 9 and the second crushing blade 12. The first crushing blade 9 and the second crushing blade 12 are arranged alternately inside the outer shell 1. The outer length of the net bag 16 is the same as the inner length of the outer shell 1. The outer width of the net bag 16 is only half the inner width of the outer shell 1. The cooler 6 and the water pipe 5 are a group, and there are two groups in total. The cooler 6 and the water pipe 5 are symmetrically arranged on the surface of the spray head 4.

[0026] Workflow: When the thermoplastic rubber granule crusher is needed, the feed hopper 3 and feed inlet 2 first feed the material between the first crushing blade 9 and the second crushing blade 12. The first motor 7 and the second motor 10 drive the first rotating shaft 8 and the second rotating shaft 11 to rotate, respectively. The first rotating shaft 8 drives the first crushing blade 9 to rotate counterclockwise, and the second rotating shaft 11 drives the second crushing blade 12 to rotate clockwise. The thermoplastic rubber is crushed by the first crushing blade 9 and the second crushing blade 12. At the same time, the cooler 6 cools the water passing through it. The cooled water is sprayed onto the first crushing blade 9 and the second crushing blade 12 through the water pipe 5 and the water nozzle 4 to cool the thermoplastic rubber. The low temperature and the flowing water reduce the viscosity of the thermoplastic rubber. The thermoplastic rubber particles falling from the first crushing blade 9 and the second crushing blade 12 fall into the mesh bag. Inside the mesh bag 16, the third motor 13 drives the connecting shaft 14 to rotate. The connecting shaft 14, under the action of the first fixing groove 15, drives the fixing strip 19 to rotate. The fixing strip 19 drives the limiting shaft 20 to rotate in the limiting groove 18. Under the action of the second fixing groove 17, the mesh bag 16 will rotate together with the fixing strip 19 and the limiting shaft 20. Through the forward and reverse rotation of the third motor 13, the mesh bag 16 will shake back and forth. As the mesh bag 16 shakes, the thermoplastic rubber particles inside will be evenly washed. Dust and water after washing will pass through the mesh bag 16 and finally be discharged through the drain pipe 22. The thermoplastic rubber particles will remain in the mesh bag 16. After the thermoplastic rubber is crushed, it can be removed by rotating the sealing cover 21. Then, hold the bottom of the mesh bag 16 by hand and pull out the limiting shaft 20 and the fixing strip 19. The mesh bag 16 will fall out of the outer shell 1, thus completing the collection of the crushed thermoplastic rubber.

[0027] Contents not described in detail in this specification are existing technologies known to those skilled in the art. Standard parts used in this invention can all be purchased commercially, and irregularly shaped parts can be custom-made according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are already mature technologies. The machinery, parts, and equipment all use conventional models from the prior art, and the circuit connections also employ conventional connection methods from the prior art, which will not be detailed here.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. Thermoplastic rubber granulator comprising a housing (1), characterized in that: The top end of the shell (1) is provided with a feed inlet (2), the top end of the feed inlet (2) is fixedly connected with a feed hopper (3), the inner side of the shell (1) is fixedly connected with water spray heads (4) located on both sides, one side of the water spray head (4) is fixedly connected with a water pipe (5) penetrating the shell (1), the end of the water pipe (5) away from the water spray head (4) is provided with a refrigerator (6), the right side of the shell (1) is fixedly connected with a first motor (7) located below the water pipe (5), the output end of the first motor (7) is fixedly connected with a first rotating shaft (8) penetrating the shell (1), the outer side of the first rotating shaft (8) is fixedly connected with a first crushing blade (9), the left side of the shell (1) is fixedly connected with a second motor (10), the output end of the second motor (10) is fixedly connected with a second rotating shaft (11) penetrating the shell (1), the outer side of the second rotating shaft (11) is fixedly connected with a second crushing blade (12), the bottom end of the shell (1) is screw-connected with a sealing cover (21), the bottom end of the sealing cover (21) is provided with a drain pipe (22).

2. A thermoplastic rubber granule mill according to claim 1, characterized in that: The left side of the shell (1) is fixedly connected with a third motor (13) located below the second motor (10), the output of the third motor (13) is fixedly connected with a connecting shaft (14) penetrating the shell (1), the end of the connecting shaft (14) away from the third motor (13) is provided with a first fixed groove (15), the inner side of the shell (1) is provided with a net bag (16) located below the first crushing blade (9) and the second crushing blade (12), the two sides of the net bag (16) are provided with second fixed grooves (17), the right side of the shell (1) is provided with a limiting groove (18), the first fixed groove (15) and the second fixed groove (17) are internally clamped and connected with a fixed strip (19), the end of the fixed strip (19) away from the connecting shaft (14) is fixedly connected with a limiting shaft (20) located on the inner side of the limiting groove (18).

3. A thermoplastic rubber granule mill according to claim 2, characterised in that: The number of the first crushing blade (9) and the second crushing blade (12) is three, the first crushing blade (9) and the second crushing blade (12) are arranged in an interlaced manner on the inner side of the shell (1).

4. A thermoplastic rubber granule mill according to claim 2, characterized in that: The outer side length of the net bag (16) is consistent with the inner side length of the shell (1), the outer side width of the net bag (16) is only half of the inner side width of the shell (1).

5. A thermoplastic rubber granule mill according to claim 1, characterized in that: The refrigerator (6) and the water pipe (5) are a group, there are two groups in total, and the refrigerator (6) and the water pipe (5) are symmetrically arranged on the surface of the water spray head (4).