Raw material crushing device for plastic particle production
By designing a raw material crushing device that includes crushing rollers and impact blocks, the problems of clogging and manual screening during the crushing of plastic particles were solved, realizing automatic screening and efficient crushing, and improving crushing efficiency.
Patent Information
- Application Number
- CN202422890972.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-26
AI Technical Summary
Plastic granules are prone to clogging the feed inlet during the crushing process, resulting in low crushing efficiency and the need for manual screening of larger materials, which affects work efficiency.
A raw material crushing device including a fixed frame, screening box, crushing box, storage box and motor drive is designed. It uses a combination of crushing rollers and impact blocks to achieve automatic screening and crushing, avoid blockage, and improve efficiency by driving feeding and screening with motor drive.
It effectively avoids clogging of the feed inlet, realizes automatic screening and crushing, improves crushing efficiency, reduces manual intervention, and enhances work efficiency.
Smart Images

Figure CN223493642U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic particle production technology, specifically to a raw material crushing device for plastic particle production. Background Technology
[0002] Plastics are polymers formed through addition or condensation polymerization. Plastic particles, also known as plastic granules, are raw materials in semi-finished form for easy storage, transportation, and processing. Currently, plastic particles need to be crushed before use so that they can be melted more quickly. However, when plastic particles enter the crusher, the feed inlet often gets blocked, preventing the plastic particles from being crushed properly and affecting the crusher's efficiency. This necessitates manual unblocking.
[0003] In existing technologies, during the crushing process, some materials are larger than the standard size, requiring workers to screen the crushed plastic particles and crush the larger particles again, resulting in low work efficiency. Therefore, this device provides a raw material crushing device for plastic particle production. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a raw material crushing device for plastic particle production, thereby solving the aforementioned technical problems.
[0005] The present invention adopts the following technical solution: a raw material crushing device for plastic particle production, including a fixed frame, a screening box fixedly installed on one side of the fixed frame, a feeding box fixedly installed at the bottom of the screening box, a crushing box fixedly installed at the top of the screening box, and a storage box fixedly installed on one side of the screening box.
[0006] A first motor is fixedly installed on one side of the crushing box, a first drive shaft is fixedly installed at the output end of the first motor, a first rotating shaft is rotatably installed on the inner side of the crushing box, transmission gears are fixedly installed on the outer sides of the first drive shaft and the first rotating shaft, adjacent transmission gears mesh with each other, and crushing rollers are fixedly installed on the outer sides of the first drive shaft and the first rotating shaft.
[0007] A fixing plate is fixedly installed on the rear side of the screening box, a second rotating shaft is rotatably installed on the inner side of the fixing plate, and multiple striking blocks are fixedly installed on the outer side of the second rotating shaft.
[0008] Furthermore, pulleys are fixedly mounted on the outer sides of the second rotating shaft and the first drive shaft, and a synchronous belt is tensioned on the outer side of the pulleys.
[0009] Furthermore, a fixing sleeve is fixedly installed on the top of the storage box, a second motor is fixedly installed on the top of the fixing sleeve, a second drive shaft is fixedly installed on the output end of the second motor, a feeding auger is fixedly installed on the outside of the second drive shaft, and a conveying pipe is fixedly installed on the inside of the fixing sleeve.
[0010] Furthermore, a screening plate is fixedly installed between the inner walls of the front and rear sides of the screening box, and a connecting groove is opened on one side of the screening box and the storage box, with the lowest point of the screening plate abutting against the connecting groove.
[0011] Furthermore, the striking block is made of rubber and abuts against the screening box.
[0012] Furthermore, the top of the storage bin is provided with a feeding chute, the inner side of the storage bin is provided with a discharge ramp, and the conveying pipe is inclined.
[0013] The above-mentioned technical solutions adopted in the embodiments of this utility model can achieve the following beneficial effects:
[0014] This invention allows raw materials to be placed inside a storage bin. A second motor above a fixed sleeve drives a second drive shaft to rotate, which in turn drives a feeding auger to lift the material. The material is then conveyed through a conveying pipe to the inside of a crushing bin. A first motor drives a first drive shaft to rotate, which in turn drives a first rotating shaft on the other side via a transmission gear. Both the first drive shaft and the first rotating shaft drive the crushing roller to rotate and crush the raw materials.
[0015] The crushed raw materials can fall onto the screen plate. The smaller diameter materials can pass through the screen plate and be discharged from the feed box. The larger diameter materials that do not pass through the screen can enter the inside of the storage box from the opening on one side of the storage box, so that they can be screened again. After the first drive shaft rotates, it can drive the second rotating shaft to rotate through the pulley and the synchronous belt. The second rotating shaft can drive multiple impact blocks to rotate, so that the impact blocks can prevent residual materials from accumulating on the top of the screen plate after impact. Attached Figure Description
[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 2 This is a three-dimensional structural diagram of the rear view portion of this utility model;
[0019] Figure 3 This is a schematic diagram of a portion of the three-dimensional structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the open structure in cross-section of this utility model.
[0021] Figure Labels
[0022] 1. Fixed frame; 2. Screening box; 3. Feeding box; 4. Crushing box; 5. Storage box; 6. First motor; 7. First drive shaft; 8. First rotating shaft; 9. Transmission gear; 10. Crushing roller; 11. Fixed plate; 12. Second rotating shaft; 13. Impact block; 14. Pulley; 15. Synchronous belt; 16. Fixed sleeve; 17. Second motor; 18. Second drive shaft; 19. Feeding auger; 20. Conveying pipe; 21. Screening plate. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0024] The technical solutions provided by the various embodiments of this utility model are described in detail below with reference to the accompanying drawings.
[0025] This utility model embodiment provides a raw material crushing device for plastic particle production, including a fixed frame 1, a screening box 2 fixedly installed on one side of the fixed frame 1, a feeding box 3 fixedly installed at the bottom of the screening box 2, a crushing box 4 fixedly installed at the top of the screening box 2, and a storage box 5 fixedly installed on one side of the screening box 2.
[0026] A first motor 6 is fixedly installed on one side of the crushing box 4. A first drive shaft 7 is fixedly installed at the output end of the first motor 6. A first rotating shaft 8 is rotatably installed on the inner side of the crushing box 4. Transmission gears 9 are fixedly installed on the outer sides of the first drive shaft 7 and the first rotating shaft 8. Adjacent transmission gears 9 mesh with each other. Crushing rollers 10 are fixedly installed on the outer sides of the first drive shaft 7 and the first rotating shaft 8.
[0027] A fixing plate 11 is fixedly installed on the rear side of the screening box 2. A second rotating shaft 12 is rotatably installed on the inner side of the fixing plate 11. Multiple striking blocks 13 are fixedly installed on the outer side of the second rotating shaft 12.
[0028] In a further preferred embodiment of the present invention, a pulley 14 is fixedly installed on the outer side of the second rotating shaft 12 and the first drive shaft 7, and a synchronous belt 15 is tensioned on the outer side of the pulley 14.
[0029] In a further preferred embodiment of the present invention, a fixing sleeve 16 is fixedly installed on the top of the storage box 5, a second motor 17 is fixedly installed on the top of the fixing sleeve 16, a second drive shaft 18 is fixedly installed at the output end of the second motor 17, a feeding auger 19 is fixedly installed on the outer side of the second drive shaft 18, and a conveying pipe 20 is fixedly installed on the inner side of the fixing sleeve 16.
[0030] In a further preferred embodiment of this utility model, a screening plate 21 is fixedly installed between the inner walls of the front and rear sides of the screening box 2. A connecting groove is provided on one side of the screening box 2 and the storage box 5. The lowest point of the screening plate 21 abuts against the connecting groove. This allows plastic particles above the screening plate 21 that have not passed through screening to enter the inner side of the storage box 5 through the connecting groove, so that the feeding auger 19 can drive them to rise and be crushed again.
[0031] In a further preferred embodiment of this utility model, the striking block 13 is made of rubber and abuts against the screening box 2. The rubber material makes it less likely for the second rotating shaft 12 to be damaged during the striking process, and the striking block 13 can make the screening box 2 and the screening plate 21 vibrate.
[0032] In a further preferred embodiment of this utility model, a feeding trough is provided on the top of the storage box 5, and a discharge ramp is provided on the inner side of the storage box 5. The conveying pipe 20 is inclined. The discharge ramp can prevent the material from accumulating, and the feeding auger 19 can lift the material inside the storage box 5 after rotating, making the material discharge of the device more convenient and faster.
[0033] Specifically, this invention allows the raw material to be placed inside the storage box 5. The second motor 17 above the fixed sleeve 16 drives the second drive shaft 18 to rotate, enabling the second drive shaft 18 to lift the material via the feeding auger 19. The material is then conveyed through the conveying pipe 20 to the inside of the crushing box 4. The first motor 6 drives the first drive shaft 7 to rotate, which in turn drives the first rotating shaft 8 on the other side via the transmission gear 9. This allows the first drive shaft 7 and the first rotating shaft 8 to rotate the crushing roller 10 and crush the raw material. The material is crushed; the crushed material can fall onto the screen plate 21. The material with a smaller diameter after crushing can pass through the screen plate 21 and be discharged from the feed box 3. The material with a larger diameter that does not pass through the screen can enter the inside of the storage box 5 from the opening on one side of the storage box 5 so that it can be screened again. After the first drive shaft 7 rotates, it can drive the second rotating shaft 12 to rotate through the pulley 14 and the synchronous belt 15. The second rotating shaft 12 can drive multiple impact blocks 13 to rotate, so that after the impact blocks 13 hit, the residual material on the top of the screen plate 21 is not easy to accumulate.
[0034] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.
Claims
1. A raw material crushing device for plastic particle production, characterized in that: Includes a fixed frame (1), a screening box (2) is fixedly installed on one side of the fixed frame (1), a feeding box (3) is fixedly installed at the bottom of the screening box (2), a crushing box (4) is fixedly installed at the top of the screening box (2), and a storage box (5) is fixedly installed on one side of the screening box (2). A first motor (6) is fixedly installed on one side of the crushing box (4), a first drive shaft (7) is fixedly installed at the output end of the first motor (6), a first rotating shaft (8) is rotatably installed on the inner side of the crushing box (4), a transmission gear (9) is fixedly installed on the outer side of the first drive shaft (7) and the first rotating shaft (8), adjacent transmission gears (9) mesh with each other, and a crushing roller (10) is fixedly installed on the outer side of the first drive shaft (7) and the first rotating shaft (8). A fixing plate (11) is fixedly installed on the rear side of the screening box (2). A second rotating shaft (12) is rotatably installed on the inner side of the fixing plate (11). A plurality of striking blocks (13) are fixedly installed on the outer side of the second rotating shaft (12).
2. The raw material crushing device for plastic particle production as described in claim 1, characterized in that: A pulley (14) is fixedly installed on the outer side of the second rotating shaft (12) and the first drive shaft (7), and a synchronous belt (15) is tensioned on the outer side of the pulley (14).
3. The raw material crushing device for plastic particle production as described in claim 1, characterized in that: A fixed sleeve (16) is fixedly installed on the top of the storage box (5). A second motor (17) is fixedly installed on the top of the fixed sleeve (16). A second drive shaft (18) is fixedly installed at the output end of the second motor (17). A feeding auger (19) is fixedly installed on the outside of the second drive shaft (18). A conveying pipe (20) is fixedly installed on the inside of the fixed sleeve (16).
4. The raw material crushing device for plastic particle production as described in claim 1, characterized in that: A screening plate (21) is fixedly installed between the inner walls of the front and rear sides of the screening box (2). A connecting groove is provided on one side of the screening box (2) and the storage box (5). The lowest point of the screening plate (21) abuts against the connecting groove.
5. The raw material crushing device for plastic particle production as described in claim 1, characterized in that: The striking block (13) is made of rubber and abuts against the screening box (2).
6. The raw material crushing device for plastic particle production as described in claim 3, characterized in that: The top of the storage box (5) is provided with a feeding trough, the inner side of the storage box (5) is provided with a feeding ramp, and the conveying pipe (20) is inclined.