A high-efficiency plastic crushing device for plastic product manufacturing

Abstract

This utility model relates to the field of plastic crushing and processing, and in particular to a high-efficiency plastic crushing device for plastic product manufacturing. It includes a feeding trough and a housing. The housing is fixedly connected to the lower end of the feeding trough. Two first mounting plates are fixedly connected to one outer wall of the feeding trough. A first rotating motor is fixedly connected to one outer wall of each first mounting plate. The output shaft of the first rotating motor is fixedly connected to the rotation center of a second mounting rod. The second mounting rod is fixedly connected to a hollow tube. Multiple second mounting frames arranged in a linear array are provided on the lower outer wall of the hollow tube. A second fan is fixedly connected to the upper end of each second mounting frame. A second dustproof net is provided on the upper outer wall of the hollow tube. This device utilizes the second fan and brush, and the first fan and scraper, to achieve efficient feeding, dust prevention, and anti-clogging, as well as efficient screening and protection. It solves the problems of existing devices lacking a dust prevention and anti-clogging structure at the feeding end and a self-cleaning structure for screening protection.

Description

Technical Field

[0001] This utility model relates to the field of plastic crushing and processing, and in particular to a high-efficiency plastic crushing device for the production of plastic products. Background Technology

[0002] In the field of plastic product manufacturing and recycling, plastic crushing is a crucial step in achieving resource regeneration. Traditional crushing equipment generally suffers from problems such as poor feeding, inadequate dust control, and low screening efficiency: materials easily accumulate and clog the feed inlet, affecting production continuity; the lack of effective dust control structures leads to dust adsorption onto equipment components, reducing the lifespan of crushing blades and polluting the working environment; screening systems are mostly statically designed, resulting in low particle screening efficiency, and the dust screen requires frequent manual cleaning after clogging, increasing maintenance costs and downtime. With the increasing demand for efficient, environmentally friendly, and intelligent production in the plastic recycling industry, there is an urgent need to develop a new type of crushing equipment with efficient feeding, dust-proof self-cleaning, and intelligent screening functions to address the shortcomings of existing technologies and promote the green and sustainable development of the industry.

[0003] While existing technologies can achieve a certain crushing effect, they suffer from drawbacks: the lack of dust and blockage prevention structures at the feed end and self-cleaning structures for screening protection. In view of this, we propose a high-efficiency plastic crushing device for plastic product manufacturing, which solves the above problems. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a high-efficiency plastic crushing device for the production of plastic products.

[0005] The technical solution of this utility model is as follows: A high-efficiency plastic crushing device for plastic product manufacturing includes a feeding trough and a housing. The housing is fixedly connected to the lower end of the feeding trough. Two first mounting plates are fixedly connected to one outer wall of the feeding trough. A first rotating motor is fixedly connected to one outer wall of the first mounting plates. The output shaft of the first rotating motor is fixedly connected to the rotation center of a second mounting rod. The second mounting rod is fixedly connected to a hollow tube. A plurality of second mounting frames arranged in a linear array are provided on the lower outer wall of the hollow tube. A second fan is fixedly connected to the upper end of the second mounting frames. A second dustproof net is provided on the upper outer wall of the hollow tube. The first rotating motor can cause the second mounting rod to drive the hollow tube to swing back and forth. The second fan blows downwards. The hollow tube has a triangular cross-section with the tip pointing upwards, allowing the plastic to slide down the inclined plane and preventing the plastic from piling up on the hollow tube.

[0006] Preferably, a plurality of first mounting rods are fixedly connected to the inner wall of the feeding trough. Each first mounting rod is equipped with a brush. The first mounting rod is correspondingly located on one side of the second dustproof net. The second dustproof net, which is set on the two inclined sides of the hollow tube, comes into contact with the brush during the swinging process, effectively wiping away dust and preventing the second dustproof net from clogging and affecting the operation of the second fan.

[0007] Preferably, the lower end of the housing is provided with a first mounting bracket, the upper end of the first mounting bracket is fixedly connected to a first fan, a first dustproof net is provided above the first fan, the first dustproof net is fixedly connected to the lower end of the inner wall of the housing, the airflow direction of the first fan is downward, and the first dustproof net protects the first fan to prevent fine dust from affecting the operation of the first fan.

[0008] Preferably, the box body is provided with an upper guide rail and a lower guide rail. The upper guide rail is provided with a screening trough, and the lower guide rail is provided with a collection trough. The bottom of the screening trough is provided with a sieve hole. The screening trough is used to collect larger plastic particles, and the collection trough is used to collect smaller plastic particles.

[0009] Preferably, a scraper is fixedly connected to the lower outer wall of the collection tank. The scraper is located above the first dustproof net and can scrape off the dust on the surface of the first dustproof net to prevent the first dustproof net from becoming clogged.

[0010] Preferably, a second mounting plate is fixedly connected to one side of the outer wall of the housing, and a second rotating motor is fixedly connected to one side of the outer wall of the second mounting plate. The output shaft of the second rotating motor is fixedly connected to the rotation center of the main gear, and driving the second rotating motor can make the first blade rotate.

[0011] Preferably, the main gear is fixedly connected to the first blade, the main gear meshes with the driven gear, the driven gear is fixedly connected to the second blade, and both the first blade and the second blade are connected to the housing through bearings. When the first blade rotates, the second blade rotates together.

[0012] Compared with existing technologies, the advantages of this utility model are:

[0013] I. This utility model, with its combination of a second fan and a brush, significantly improves feeding efficiency and stability. The second fan, installed at the lower end of a triangular hollow tube, blows air downwards as the tube swings. This not only propels the plastic material quickly down the inclined surface into the chamber, preventing it from accumulating and clogging on the hollow tube surface, but also disperses fibers and neutralizes static electricity when processing fiber-reinforced plastics or highly static materials, reducing the risk of material entanglement on the blades and making the feeding process smoother. Simultaneously, the second dustproof net on the hollow tube continuously contacts the brush on the inner wall of the feeding trough during the swinging process. The brush promptly removes dust from the dustproof net, maintaining unobstructed airflow from the second fan and preventing clogging of the dustproof net from affecting feeding efficiency. This ensures efficient and stable operation of the entire crushing device's feeding process.

[0014] II. Based on the first beneficial effect, the coordinated operation of the first fan and the scraper further optimizes the equipment performance. The first fan blows air downwards, creating a negative pressure zone inside the chamber, accelerating the passage of plastic particles through the first dustproof net and quickly falling into the collection trough, significantly improving screening efficiency. The first dustproof net effectively intercepts fine dust, protecting the first fan from dust intrusion and extending its service life. In addition, the scraper at the lower end of the collection trough simultaneously scrapes away dust from the upper surface of the first dustproof net during sliding operations, preventing the dustproof net from clogging, maintaining unobstructed airflow channels, ensuring efficient screening, reducing equipment maintenance frequency, and improving overall operational stability and production efficiency.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] Figure 1 This is a first-person three-dimensional perspective schematic diagram of the present invention;

[0017] Figure 2 This is a two-dimensional perspective schematic diagram of the present invention.

[0018] Figure 3 This is a side view of the present invention;

[0019] Figure 4 This is a schematic diagram of the box structure of this utility model;

[0020] Figure 5 For the present utility model Figure 2 An enlarged schematic diagram of structure A in the middle.

[0021] Figure label:

[0022] 1. Brush; 2. First mounting rod; 3. Feed chute; 4. First blade; 5. Second blade; 6. Housing; 7. First rotating motor; 8. First mounting plate; 9. Second mounting rod; 10. First mounting bracket; 11. First fan; 12. Scraper; 13. Collection trough; 14. Screening trough; 15. Driven gear; 16. First dustproof net; 17. Lower guide rail; 18. Upper guide rail; 19. Second rotating motor; 20. Second mounting plate; 21. Main gear; 22. Second dustproof net; 23. Second mounting bracket; 24. Second fan; 25. Hollow tube. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0027] Example 1

[0028] Please see Figures 1-4 As shown, this embodiment is a high-efficiency plastic crushing device for plastic product production, including a feeding trough 3 and a housing 6. The housing 6 is fixedly connected to the lower end of the feeding trough 3. Two first mounting plates 8 are fixedly connected to one side of the outer wall of the feeding trough 3. A first rotating motor 7 is fixedly connected to one side of the outer wall of the first mounting plate 8. The output shaft of the first rotating motor 7 is fixedly connected to the rotation center of the second mounting rod 9. The second mounting rod 9 is fixedly connected to the hollow tube 25. A plurality of second mounting frames 23 arranged in a linear array are provided on the lower outer wall of the hollow tube 25. A second fan 24 is fixedly connected to the upper end of the second mounting frame 23. A second dustproof net 22 is provided on the upper outer wall of the hollow tube 25. In use, the plastic product to be crushed is placed in the feeding trough 3. The first rotating motor 7 is started, which drives the second mounting rod 9 to rotate, causing the hollow tube 25 to swing back and forth along the axis. At the same time, the second fan 24 fixed on the hollow tube 25 rotates accordingly, blowing air downwards. Since the hollow tube 25 is triangular with its tip pointing upwards, the plastic material slides quickly down the inclined surface into the box 6 under the action of swinging and wind force, avoiding accumulation and blockage on the surface of the hollow tube 25. When processing fiber-reinforced plastics or highly static materials, the airflow of the second fan 24 can also reduce the risk of material entanglement on the blades and neutralize electrostatic adsorption, making the entire crushing process smoother.

[0029] Example 2

[0030] Please see Figures 1-4As shown, this embodiment, based on embodiment 1, further includes: multiple first mounting rods 2 fixedly connected to the inner wall of the feeding trough 3, each first mounting rod 2 equipped with a brush 1. The first mounting rods 2 are correspondingly positioned on one side of the second dustproof net 22. During use, as the second dustproof net 22 swings, it continuously contacts the brush 1, and the bristles of the brush 1 gently and effectively wipe away the dust on the surface of the second dustproof net 22. Whether it's dust raised when plastic particles fall or dust adsorbed during the swinging of the hollow tube 25, it can be promptly cleaned by the brush 1. The brushed-off dust will fall into the bottom of the box 6 with the airflow or gravity, preventing dust from accumulating at the dustproof net. In this way, the second dustproof net 22 always maintains good air permeability, and the second fan 24 can stably blow air downwards, maintaining the smooth downward flow of plastic material into the box 6, ensuring efficient and stable operation of the entire crushing device's feeding process, and preventing production efficiency from being affected by dustproof net blockage.

[0031] The lower end of the housing 6 is provided with a first mounting bracket 10, and the upper end of the first mounting bracket 10 is fixedly connected to a first fan 11. A first dustproof net 16 is provided above the first fan 11. The first dustproof net 16 is fixedly connected to the lower end of the inner wall of the housing 6. When in use, the operation of the first fan 11 generates a downward airflow that forms a negative pressure zone in the internal area of ​​the housing 6, which allows plastic particles with the required particle size to quickly pass through the sieve holes and fall into the collection tank 13, reducing the residence time of particles on the surface of the dustproof net and improving screening efficiency. The first dustproof net 16 acts as a physical barrier to intercept dust particles smaller than the sieve holes, preventing them from entering the interior of the first fan 11 and causing blade wear or motor failure.

[0032] The housing 6 is equipped with an upper guide rail 18 and a lower guide rail 17. The upper guide rail 18 is equipped with a screening trough 14, and the lower guide rail 17 is equipped with a collection trough 13. In use, when the crushed plastic particles fall from the blade area, they first enter the screening trough 14 in the upper guide rail 18. The sieve holes at the bottom of the screening trough 14 will perform initial screening of the particles: larger particles are intercepted in the screening trough 14, while smaller particles pass through the sieve holes and fall into the collection trough 13 in the lower guide rail 17.

[0033] A scraper 12 is fixedly connected to the lower outer wall of the collection tank 13. The scraper 12 is located above the first dustproof net 16. When the collection tank 13 slides along the lower guide rail 17 to collect particles, the scraper 12 on the lower outer wall of the collection tank 13 simultaneously performs dynamic cleaning on the upper surface of the first dustproof net 16.

[0034] A second mounting plate 20 is fixedly connected to one side of the outer wall of the box 6. A second rotating motor 19 is fixedly connected to one side of the outer wall of the second mounting plate 20. The output shaft of the second rotating motor 19 is fixedly connected to the rotation center of the main gear 21. When in use, after the plastic material enters the box 6 through the feeding chute 3, the second rotating motor 19 is started, and its output shaft drives the main gear 21 to rotate at high speed.

[0035] The main gear 21 is fixedly connected to the first blade 4, and meshes with the driven gear 15. The driven gear 15 is fixedly connected to the second blade 5. Both the first blade 4 and the second blade 5 are connected to the housing 6 via bearings. In use, when the second rotary motor 19 starts, its output shaft drives the main gear 21 to rotate at high speed. Since the main gear 21 is fixedly connected to the first blade 4, the first blade 4 will rotate synchronously with the main gear 21. At the same time, the main gear 21 meshes with the driven gear 15, and the rotational power of the main gear 21 is transmitted to the driven gear 15. The driven gear 15 is fixedly connected to the second blade 5, thereby driving the second blade 5 to rotate. Due to the meshing relationship of the main and driven gears 15, the first blade 4 and the second blade 5 will rotate in opposite directions, forming a strong shearing force field between them.

[0036] Instructions for use: When using this device, place the plastic product to be crushed into the feeding trough 3 and start the first rotating motor 7. At this time, the first rotating motor 7 drives the second mounting rod 9 to rotate, causing the hollow tube 25 to swing back and forth along the axis. The second fan 24 fixed on the hollow tube 25 rotates accordingly and blows air downwards. Since the hollow tube 25 is triangular with its tip pointing upwards, under the combined action of the air force of the second fan 24 and the swing of the hollow tube 25, the plastic material will slide quickly down the inclined surface into the box 6, effectively avoiding accumulation and blockage on the surface of the hollow tube 25. If processing fiber-reinforced plastics or high static electricity materials, the airflow of the second fan 24 can also disperse the fibers and neutralize static electricity, reducing the risk of material entanglement on the blades. During the swing of the hollow tube 25, the second dustproof net 22 on its upper outer wall will continuously contact the brush 1 on the first mounting rod 2 on the inner wall of the feeding trough 3. The brush 1 gently and effectively removes dust from the surface of the second dustproof net 22. Whether it's dust raised by falling plastic particles or dust adsorbed by the oscillating hollow tube 25, it can be cleaned promptly, ensuring the second dustproof net 22 maintains good air permeability, guaranteeing stable airflow from the second fan 24, and maintaining efficient feeding. When the plastic material enters the housing 6, the second rotating motor 19 is activated. The main gear 21 drives the first blade 4, and the driven gear 15 drives the second blade 5 to rotate in the opposite direction at high speed, crushing the plastic into particles. Simultaneously, the first fan 11 at the bottom of the housing 6 is activated; the first fan 11 blows downwards, creating a negative pressure zone inside the housing 6, accelerating the passage of plastic particles through the first dustproof net 16. Particles with the required size quickly fall into the collection trough 13 below, significantly improving screening efficiency. The first dustproof net 16 intercepts fine dust, preventing it from entering the first fan 11, protecting the fan's normal operation and extending its service life. As the collection trough 13 slides along the lower guide rail 17 to collect particles, the scraper 12 on its lower outer wall moves synchronously.

[0037] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-efficiency plastic crushing device for plastic product production, comprising a discharging chute (3) and a box body (6), characterized in that: The lower end of the feeding trough (3) is fixedly connected to a box body (6). Two first mounting plates (8) are fixedly connected to one side of the outer wall of the feeding trough (3). A first rotating motor (7) is fixedly connected to one side of the outer wall of the first mounting plate (8). The output shaft of the first rotating motor (7) is fixedly connected to the rotation center of the second mounting rod (9). The second mounting rod (9) is fixedly connected to the hollow tube (25). The lower outer wall of the hollow tube (25) is provided with multiple second mounting brackets (23) arranged in a linear array. The upper end of the second mounting bracket (23) is fixedly connected to a second fan (24). The upper outer wall of the hollow tube (25) is provided with a second dustproof net (22).

2. The high-efficiency plastic crushing device for plastic product manufacturing according to claim 1, characterized in that: The inner wall of the feeding trough (3) is fixedly connected with a plurality of first mounting rods (2), each of which is equipped with a brush (1) and is located on one side of the second dustproof net (22).

3. The high-efficiency plastic crushing device for plastic product manufacturing according to claim 1, characterized in that: The lower end of the housing (6) is provided with a first mounting bracket (10), and the upper end of the first mounting bracket (10) is fixedly connected with a first fan (11). A first dustproof net (16) is provided above the first fan (11), and the first dustproof net (16) is fixedly connected to the lower end of the inner wall of the housing (6).

4. The high-efficiency plastic crushing device for plastic product manufacturing according to claim 3, characterized in that: The box (6) is provided with an upper guide rail (18) and a lower guide rail (17). The upper guide rail (18) is provided with a screening groove (14), and the lower guide rail (17) is provided with a collection groove (13).

5. The high-efficiency plastic crushing device for plastic product manufacturing according to claim 4, characterized in that: A scraper (12) is fixedly connected to the lower outer wall of the collection trough (13), and the scraper (12) is located above the first dustproof net (16).

6. The high-efficiency plastic crushing device for plastic product manufacturing according to claim 1, characterized in that: A second mounting plate (20) is fixedly connected to one side of the outer wall of the housing (6), and a second rotating motor (19) is fixedly connected to one side of the outer wall of the second mounting plate (20). The output shaft of the second rotating motor (19) is fixedly connected to the rotation center of the main gear (21).

7. The high-efficiency plastic crushing device for plastic product manufacturing according to claim 6, characterized in that: The main gear (21) is fixedly connected to the first blade (4), the main gear (21) meshes with the driven gear (15), the driven gear (15) is fixedly connected to the second blade (5), and both the first blade (4) and the second blade (5) are connected to the housing (6) through bearings.

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