Waste plastic recycling and crushing device
By integrating crushing and screening devices, the problems of dust pollution and unevenness in the plastic crushing process are solved, achieving efficient and dust-free plastic processing and improving processing efficiency and equipment stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN MIN INNOVATION MATERIALS TECHNOLOGY CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-05-26
AI Technical Summary
Dust pollution and uneven size generated during plastic crushing affect the environment and equipment lifespan, and separating crushing and screening reduces processing efficiency.
Design an integrated crushing and screening device that uses a dust prevention mechanism to block dust diffusion and a vibrating motor to drive the screen plate to screen plastic blocks, so as to achieve crushing and screening simultaneously.
It improves processing efficiency, prevents dust diffusion, ensures stable equipment operation, and enhances the overall processing effect of plastic crushing.
Smart Images
Figure CN224275810U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic recycling and crushing technology, specifically to a waste plastic recycling and crushing device. Background Technology
[0002] Plastics are difficult to degrade naturally (some take hundreds of years), and the accumulation of large amounts of waste plastic leads to soil and water pollution and threatens marine ecosystems. Recycling waste plastics is an important way to solve plastic pollution and promote resource recycling. Plastic production relies on non-renewable resources such as petroleum; recycling reduces raw material consumption. The energy consumption of recycling plastics is generally lower than that of producing new plastics, which helps reduce greenhouse gas emissions. Waste plastic crushing is a key step in the recycling process, physically breaking down large pieces of plastic into smaller pieces, facilitating subsequent washing, sorting, and granulation processes.
[0003] The plastic crushing process generates a large amount of dust, which not only poses a threat to the environment and human health, but also affects the lifespan of workshop equipment. Uneven size of crushed plastic is a common problem. Therefore, it is necessary to screen the crushed plastic. However, separating crushing and screening reduces processing efficiency. Utility Model Content
[0004] The purpose of this invention is to provide a waste plastic recycling and crushing device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a waste plastic recycling crushing device, including a crushing mechanism, a screening mechanism below the crushing mechanism, a dustproof mechanism between the crushing mechanism and the screening mechanism, the crushing mechanism including a crushing box, the crushing box containing a crushing component, the crushing component being driven by a motor reducer, a feed hopper at the upper end of the crushing box, and a discharge hopper at the lower end of the crushing box.
[0006] The crushing assembly includes a first main shaft and a second main shaft, each of which is fixedly equipped with multiple sets of crushing cutter discs. Both the first and second main shafts are connected to the crushing box via bearings.
[0007] In this configuration, one end of the first main shaft is fixedly connected to a driving gear, and one end of the second main shaft is fixedly connected to a driven gear. The driving gear and the driven gear mesh and transmit power.
[0008] The output shaft of the motor reducer is fixedly connected to the first synchronous pulley via a coupling, and one end of the drive gear is fixedly connected to the second synchronous pulley. The first synchronous pulley and the second synchronous pulley are driven by a synchronous belt.
[0009] The screening mechanism includes a screening seat with a built-in screening plate and a discharge hopper fixedly installed at the lower end of the screening seat.
[0010] The discharge hopper is equipped with a vibrating motor on its outer side, and spring support legs are fixedly installed at the corners of the screening seat.
[0011] The dustproof mechanism includes a fixing plate, and multiple sets of rubber sheets are fixedly installed on the sides of the fixing plate.
[0012] The fixing plate is fixed to the discharge hopper.
[0013] The crushing box is welded and fixed with a bracket.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. This utility model integrates crushing and screening. The crushed plastic blocks fall through the discharge hopper onto the screening mechanism. The vibrating motor drives the screen plate to vibrate as a power source. The screening mechanism screens the crushed plastic blocks. Crushing and screening are carried out simultaneously, which improves processing efficiency.
[0016] 2. The multiple sets of rubber sheets of this utility model form a dustproof curtain, covering the discharge end of the discharge hopper and the screening seat of the screening mechanism. Through physical barrier and sealing design, it directly blocks the spread of splashed plastic blocks and dust, thereby achieving dust protection. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the structure of this utility model after removing the dustproof mechanism;
[0019] Figure 3 This is a schematic diagram of the structure of the crushing component of this utility model;
[0020] Figure 4 This is a bottom view of the screening mechanism of this utility model.
[0021] Figure 5 This is a schematic diagram of the dustproof mechanism of this utility model.
[0022] In the diagram: 1. Crushing mechanism; 2. Screening mechanism; 3. Dustproof mechanism; 11. Crushing box; 12. Feed hopper; 13. Discharge hopper; 14. Support; 15. Crushing assembly; 16. Motor reducer; 151. First main shaft; 152. Second main shaft; 153. Crushing cutter head; 154. Drive gear; 155. Driven gear; 161. First synchronous pulley; 162. Second synchronous pulley; 163. Synchronous belt; 21. Screening seat; 22. Screen plate; 23. Discharge hopper; 24. Vibrating motor; 25. Spring support leg; 31. Fixing plate; 32. Rubber sheet. Detailed Implementation
[0023] 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.
[0024] Please see Figure 1-5 This utility model provides a technical solution: a waste plastic recycling crushing device, including a crushing mechanism 1, a screening mechanism 2 is arranged below the crushing mechanism 1, a dustproof mechanism 3 is arranged between the crushing mechanism 1 and the screening mechanism 2, the crushing mechanism 1 includes a crushing box 11, the crushing box 11 has a crushing component 15 inside, the crushing component 15 is driven by a motor reducer 16, the upper end of the crushing box 11 is provided with a feed hopper 12, and the lower end of the crushing box 11 is provided with a discharge hopper 13.
[0025] Waste plastic to be processed enters through the feed hopper 12 and falls into the crushing box 11 of the crushing mechanism 1. It is sheared and crushed by the crushing components 15 inside the crushing box 11. The crushed plastic falls through the discharge hopper 13 and onto the screening mechanism 2, where it is screened.
[0026] The crushing assembly 15 includes a first main shaft 151 and a second main shaft 152. Multiple sets of crushing cutter discs 153 are fixedly installed on both the first main shaft 151 and the second main shaft 152. The first main shaft 151 and the second main shaft 152 are connected to the crushing box 11 through bearings.
[0027] Multiple sets of crushing cutter discs 153 on the first main shaft 151 are evenly distributed at intervals along the axial direction of the first main shaft 151, and multiple sets of crushing cutter discs 153 on the second main shaft 152 are evenly distributed at intervals along the axial direction of the second main shaft 152, such as... Figure 3As shown, multiple sets of crushing discs 153 on the first main shaft 151 and multiple sets of crushing discs 153 on the second main shaft 152 form a shearing gap. When the main shaft drives the multiple sets of crushing discs 153 to rotate, the plastic is broken by shearing and extrusion forces between the blades, thus achieving shearing and crushing of the plastic. The crushed plastic falls out through the discharge hopper 13.
[0028] One end of the first main shaft 151 is fixedly connected to the driving gear 154, and one end of the second main shaft 152 is fixedly connected to the driven gear 155. The driving gear 154 and the driven gear 155 mesh and transmit power.
[0029] The output shaft of the motor reducer 16 is fixedly connected to the first synchronous pulley 161 via a coupling, and one end of the drive gear 154 is fixedly connected to the second synchronous pulley 162. The first synchronous pulley 161 and the second synchronous pulley 162 are driven by a synchronous belt 163.
[0030] When the motor reducer 16 is working, it drives the first synchronous pulley 161 at one end to rotate. Through the synchronous belt 163, it drives the second synchronous pulley 162 to rotate synchronously. The second synchronous pulley 162 drives the drive gear 154 to rotate. Through the meshing transmission between the teeth, it drives the driven gear 155 to rotate. The drive gear 154 drives the first main shaft 151 fixed to it to rotate. The first main shaft 151 drives the multiple sets of crushing discs 153 on its upper part to rotate synchronously. The driven gear 155 drives the second main shaft 152 fixed to it to rotate. The second main shaft 152 drives the multiple sets of crushing discs 153 on its upper part to rotate synchronously. The plastic is sheared and crushed by the multiple sets of crushing discs 153 in rotation, and large pieces of plastic are sheared and crushed into small pieces.
[0031] The screening mechanism 2 includes a screening seat 21, which has a built-in screen plate 22, and a discharge hopper 23 is fixedly installed at the lower end of the screening seat 21.
[0032] After being crushed by the crushing mechanism 1, the plastic blocks fall onto the screen plate 22 of the screening seat 21. The screen plate 22 includes multiple sets of screen holes. Plastic blocks that meet the crushing requirements fall through the screen holes, while plastic blocks that do not meet the crushing requirements are intercepted on the screen plate 22 and collected for subsequent processing.
[0033] The discharge hopper 23 is equipped with a vibrating motor 24 on its outer side, and spring support legs 25 are fixedly installed at the corners of the screening seat 21. The vibrating motor 24 serves as a power source and generates excitation force through the rotation of the eccentric block, driving the screen plate 22 to vibrate and screen the plastic blocks on the screen plate 22.
[0034] The dustproof mechanism 3 includes a fixing plate 31, and multiple sets of rubber sheets 32 are fixedly installed on the sides of the fixing plate 31.
[0035] The fixing plate 31 is fixed on the discharge hopper 13.
[0036] like Figure 1 As shown, the dustproof mechanism 3 is located between the crushing mechanism 1 and the screening mechanism 2. The dustproof mechanism 3 covers the discharge end of the discharge hopper 13 and the screening seat 21 of the screening mechanism 2. When the crushed plastic is discharged through the discharge hopper 13 and when the plastic blocks are screened, multiple sets of rubber sheets 32 are used for dust prevention. The multiple sets of rubber sheets 32 form a dustproof curtain. Through physical barrier and sealing design, the splashed plastic blocks and dust are directly blocked from spreading, thus achieving dust protection.
[0037] The crushing box 11 is welded and fixed with a bracket 14, which supports and fixes the crushing mechanism 1.
[0038] Working principle: During use, the motor reducer 16 drives the first main shaft 151 and the second main shaft 152 of the crushing assembly 15 to rotate. The vibrating motor 24 serves as the power source, generating excitation force through the rotation of the eccentric block, which drives the screen plate 22 to vibrate. The waste plastic to be processed enters through the feed hopper 12 and falls into the crushing box 11 of the crushing mechanism 1. The plastic is sheared and crushed by multiple sets of rotating crushing discs 153, breaking large pieces of plastic into smaller pieces. The crushed plastic falls through the discharge hopper 13 onto the screen plate 22 of the screening mechanism 2. The screen plate 22 vibrates to screen the plastic pieces. Plastic pieces that meet the crushing requirements pass through the screen holes and fall, while plastic pieces that do not meet the crushing requirements are intercepted on the screen plate 22 and collected. Multiple sets of rubber sheets 32 of the dustproof mechanism 3 form a dustproof curtain, which directly blocks the spread of splashed plastic pieces and dust through physical barrier and sealing design.
[0039] 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. A waste plastic recycling and crushing device, comprising a crushing mechanism (1), characterized in that: A screening mechanism (2) is provided below the crushing mechanism (1), and a dustproof mechanism (3) is provided between the crushing mechanism (1) and the screening mechanism (2). The crushing mechanism (1) includes a crushing box (11), and a crushing component (15) is built into the crushing box (11). The crushing component (15) is driven by a motor reducer (16). A feed hopper (12) is provided at the upper end of the crushing box (11), and a discharge hopper (13) is provided at the lower end of the crushing box (11).
2. The waste plastic recycling and crushing device according to claim 1, characterized in that: The crushing assembly (15) includes a first main shaft (151) and a second main shaft (152). Multiple sets of crushing cutter discs (153) are fixedly installed on the first main shaft (151) and the second main shaft (152). The first main shaft (151) and the second main shaft (152) are connected to the crushing box (11) through bearings.
3. The waste plastic recycling and crushing device according to claim 2, characterized in that: One end of the first main shaft (151) is fixedly connected to the driving gear (154), and one end of the second main shaft (152) is fixedly connected to the driven gear (155). The driving gear (154) and the driven gear (155) mesh and transmit power.
4. The waste plastic recycling and crushing device according to claim 3, characterized in that: The output shaft of the motor reducer (16) is fixedly connected to the first synchronous pulley (161) via a coupling, and one end of the drive gear (154) is fixedly connected to the second synchronous pulley (162). The first synchronous pulley (161) and the second synchronous pulley (162) are driven by a synchronous belt (163).
5. The waste plastic recycling and crushing device according to claim 1, characterized in that: The screening mechanism (2) includes a screening seat (21), which has a built-in sieve plate (22) and a discharge hopper (23) fixedly installed at the lower end of the screening seat (21).
6. The waste plastic recycling and crushing device according to claim 5, characterized in that: A vibrating motor (24) is installed on the outer side of the discharge hopper (23), and spring support legs (25) are fixedly installed at the corners of the screening seat (21).
7. The waste plastic recycling and crushing device according to claim 1, characterized in that: The dustproof mechanism (3) includes a fixing plate (31), and multiple sets of rubber sheets (32) are fixedly installed on the side of the fixing plate (31).
8. The waste plastic recycling and crushing device according to claim 7, characterized in that: The fixing plate (31) is fixed on the discharge hopper (13).
9. The waste plastic recycling and crushing device according to claim 1, characterized in that: A bracket (14) is welded and fixed on the crushing box (11).