Anti-pollution regenerated plastic particle cutting device
By installing a back-blowing component at the feed inlet of the pelletizing device, airflow is used to blow impurities away from the feed inlet, solving the problems of cutter damage and product purity reduction caused by impurities entering the device, and achieving long service life and high-quality production.
Patent Information
- Application Number
- CN202520458075.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-03-20
- Estimated Expiration
- 2035-03-14
AI Technical Summary
In existing pelletizing devices, the feed inlet is connected to the outside during operation, allowing external impurities to enter, damaging the cutter and reducing product purity, thus affecting service life and product quality.
A backflush assembly is installed at the feed inlet of the pelletizing device. Airflow is supplied to the rubber strip through the air supply pipe to blow impurities away from the feed inlet and prevent them from entering the device.
It effectively extends the service life of the pelletizing device, improves product quality and customer satisfaction, and reduces equipment maintenance costs. It has the advantages of simple structure, easy operation, and low implementation cost.
Smart Images

Figure CN224012735U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of recycled material production technology, specifically relating to a pollution-resistant recycled plastic pelletizing device. Background Technology
[0002] In the current technology, with the increasingly serious global plastic pollution problem, the large-scale production of recycled plastic pellets has become a key link in resource recycling. As the core equipment in plastic recycling, the pelletizing device's technical performance directly affects pellet purity, production efficiency, and the degree of environmental pollution.
[0003] In existing technologies, such as Figure 1 As shown, the production process of recycled plastic pellets mainly includes three stages: pretreatment, melt granulation, and pelletizing. After the raw materials are crushed and cleaned, metals / impurities are removed by gravity separation. The pellets are then melt-filtered in a twin-screw extruder at 180-220℃, and finally granulated after water-cooling or air-cooling.
[0004] In existing technologies, such as Figure 1 As shown, existing pelletizing devices generally suffer from the following technical defects: These devices are typically equipped with a feed inlet for the cooled, molded plastic strips. During operation, this inlet is connected to the outside environment, allowing impurities from outside to enter the pelletizing device along with the plastic strips. On the one hand, when the impurities are large in size and have high hardness, they will damage the cutting blades in the pelletizing device, reducing its service life. On the other hand, when the impurities are small in size, they will reduce the purity of the recycled plastic pellets, thereby lowering product quality. Therefore, improvements are urgently needed. Utility Model Content
[0005] In order to solve the technical problem in the prior art that, during the production of recycled plastic pellets, the feed inlet of the traditional pelletizing device is connected to the outside world, and external impurities will enter the pelletizing device along with the rubber strip, which will negatively affect the service life of the pelletizing device and the product quality, this application proposes a pollution-proof recycled plastic pelletizing device.
[0006] This application adopts the following scheme: a pollution-proof recycled plastic pelletizing device, including an L-shaped main body, a cover plate disposed on the L-shaped main body, a feed inlet disposed on the cover plate, and a back-blowing component disposed between the L-shaped main body and the cover plate. The recycled plastic strip enters the L-shaped main body from the feed inlet along direction A. The back-blowing component is used to deliver airflow to the feed inlet so that external impurities move in the opposite direction of direction A (i.e. away from the feed inlet).
[0007] In some possible embodiments, the back-flushing assembly comprises a plurality of pipe arranging holes arranged on the outer wall of the L-shaped body, a plurality of connecting ears arranged on the inner wall of the L-shaped body, and a plurality of air supply pipes arranged on the connecting ears, the air supply pipes being used to deliver air flow to the feeding port so as to move the impurities in the direction opposite to direction A.
[0008] In some possible embodiments, the pipe arranging holes comprise first pipe arranging holes arranged on the upper and lower sides of the L-shaped body, and second pipe arranging holes arranged on the left and right sides of the L-shaped body, the air supply pipes being arranged on the connecting ears after being arranged in the first pipe arranging holes / second pipe arranging holes, so as to deliver air flow to the feeding port and move the impurities in the direction opposite to direction A.
[0009] In some possible embodiments, the connecting ears comprise first connecting ears arranged on the upper and lower sides of the inner wall of the L-shaped body, and second connecting ears arranged on the left and right sides of the inner wall of the L-shaped body, the air supply pipes being arranged on the first connecting ears / second connecting ears after being arranged in the first pipe arranging holes / second pipe arranging holes, so as to deliver air flow to the feeding port and move the impurities in the direction opposite to direction A.
[0010] In some possible embodiments, the first connecting ears / second connecting ears comprise a plate arranged on the inner wall of the L-shaped body, and a plurality of arranging holes arranged on the plate, the air supply pipes being arranged on the arranging holes after being arranged in the first pipe arranging holes / second pipe arranging holes, so as to deliver air flow to the feeding port and move the impurities in the direction opposite to direction A.
[0011] In some possible embodiments, a sliding assembly is further arranged between the cover plate and the L-shaped body, the cover plate being capable of sliding along the length direction of the L-shaped body through the sliding assembly, so as to open or close the L-shaped body.
[0012] In some possible embodiments, the sliding assembly comprises a plurality of sliding rails arranged on the upper and lower sides of the L-shaped body, and a plurality of sliding blocks arranged on the cover plate at positions corresponding to the sliding rails, the sliding blocks being capable of matching into the sliding rails, so as to make the cover plate slide along the length direction of the sliding rails, thereby opening or closing the L-shaped body.
[0013] In some possible embodiments, a limiting plate is arranged on one end of the cover plate, the limiting plate being capable of abutting against the side wall of the L-shaped body when the cover plate slides along the length direction of the sliding rails, so as to limit the sliding of the cover plate along the length direction of the sliding rails.
[0014] In some possible embodiments, a plurality of fastening holes are arranged on the limiting plate along the height direction of the limiting plate, the fastening holes being used to detachably connect the cover plate and the L-shaped body.
[0015] Compared with the prior art, this application has the following beneficial effects:
[0016] This application provides a pollution-resistant recycled plastic pelletizing device, which includes an L-shaped main body, a cover plate disposed on the L-shaped main body, a feed inlet disposed on the cover plate, and a back-blowing component disposed between the cover plate and the L-shaped main body. Recycled plastic strips can enter the L-shaped main body through the feed inlet in direction A for pelletizing. By setting the back-blowing component between the cover plate and the L-shaped main body, the back-blowing component can deliver airflow in the opposite direction to the conveying direction of the plastic strip, thereby blowing away impurities located near the feed inlet from the feed inlet, preventing impurities from entering the L-shaped main body through the feed inlet, effectively extending the service life of the pelletizing device, reducing equipment maintenance costs, improving product quality and customer satisfaction, and has the advantages of simple structure, easy operation, low implementation cost, and easy promotion and implementation. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the production process of a recycled plastic pelletizing device in the existing technology.
[0018] Figure 2 This is a schematic diagram of the structure of a pollution-resistant recycled plastic pelletizing device according to this application.
[0019] Figure 3 This is a schematic diagram of the structure of the anti-pollution recycled plastic pelletizing device after the cover is opened.
[0020] Figure 4 This application Figure 3 A magnified view of a portion of point A in the middle.
[0021] Figure 5 This is a top view of a pollution-resistant recycled plastic pelletizing device according to this application.
[0022] Figure 6 This application Figure 5 Sectional view at point AA.
[0023] Figure 7 This is a schematic diagram of the cover plate of this application. Detailed Implementation
[0024] Combination Figures 1-7 The content shown further illustrates the technical solution provided in this application: a pollution-resistant recycled plastic pelletizing device, comprising an L-shaped body 1, a cover plate 2 disposed on the L-shaped body 1, a feed inlet 3 disposed on the cover plate 2, and a back-blowing component 4 disposed between the L-shaped body 1 and the cover plate 2. Recycled plastic strips enter the L-shaped body 1 through the feed inlet 3 along direction A. The back-blowing component 4 is used to deliver airflow to the feed inlet 3 so that external impurities move in the opposite direction of direction A.
[0025] As shown in Figure 1 The pelletizing device is a commonly used technical means in the art, and the recycled plastic strip enters the L-shaped body through the feed port. The cutter group in the L-shaped body cuts the recycled plastic strip. Details are not described herein.
[0026] The application provides a pollution-proof recycled plastic particle pelletizing device, which comprises an L-shaped body, a cover plate arranged on the L-shaped body, a feed port arranged on the cover plate, and a back-blowing assembly arranged between the cover plate and the L-shaped body. The recycled plastic strip can enter the L-shaped body through the feed port in the direction A for granulation. By arranging the back-blowing assembly between the cover plate and the L-shaped body, the back-blowing assembly can send airflow in the direction opposite to the direction of the strip, thereby blowing the impurities near the feed port away from the feed port, avoiding the impurities entering the L-shaped body through the feed port, effectively prolonging the service life of the pelletizing device, reducing the equipment maintenance cost, improving the product quality and customer satisfaction, and having the advantages of simple structure, easy operation, low implementation cost, and easy popularization and implementation.
[0027] In the implementation process of this embodiment, the back-blowing assembly 4 comprises a pipe hole group 40 arranged on the outer wall of the L-shaped body 1, a connecting lug group 41 arranged on the inner wall of the L-shaped body 1, and a plurality of gas supply pipes 42 arranged on the connecting lug group 41. The plurality of gas supply pipes 42 are used to send airflow to the feed port 3 to move the external impurities in the direction opposite to the direction A.
[0028] In the implementation process of this embodiment, the pipe hole group 40 comprises first pipe holes 5 arranged on the upper and lower sides of the L-shaped body 1 and second pipe holes 6 arranged on the left and right sides of the L-shaped body 1. The plurality of gas supply pipes 42 are arranged on the connecting lug group 41 after being arranged in the first pipe holes 5 / second pipe holes 6, so as to send airflow to the feed port 3, thereby moving the external impurities in the direction opposite to the direction A.
[0029] In the implementation process of this embodiment, the connecting lug group 41 comprises first connecting lugs 7 arranged on the upper and lower sides of the inner wall of the L-shaped body 1 and second connecting lugs 8 arranged on the left and right sides of the inner wall of the L-shaped body 1. The plurality of gas supply pipes 42 are arranged on the first connecting lugs 7 / second connecting lugs 8 after being arranged in the first pipe holes 5 / second pipe holes 6, so as to send airflow to the feed port 3, thereby moving the external impurities in the direction opposite to the direction A.
[0030] In the implementation process of the embodiment, the first connecting lug 7 / the second connecting lug 8 comprises a plate body 80 arranged on the inner wall of the L-shaped body 1 and a mounting hole 81 arranged on the plate body 80. After the plurality of air supply pipes 42 are arranged in the first pipe hole 5 / the second pipe hole 6, the plurality of air supply pipes 42 are arranged in the mounting hole 81, so as to convey the air flow to the feeding port 3, and then the impurities outside are moved in the opposite direction of the direction A.
[0031] In the actual implementation process, the L-shaped body is provided with a plurality of insertion grooves in the circumferential direction of the L-shaped body, and the plate body is matched and inserted into the insertion grooves, so that the plate body is detachably arranged on the L-shaped body.
[0032] Further, the insertion grooves are arranged in the height direction and the length direction of the L-shaped body, so as to meet the installation requirements of different air supply pipes.
[0033] In the actual implementation process, one end of the air supply pipe is connected with the air compressor, so as to convey the air flow to the feeding port.
[0034] In the actual implementation process, a plurality of air supply pipes are arranged in the L-shaped body. When the regenerated plastic rubber strip enters the L-shaped body from the feeding port, the air supply pipes blow the feeding port, which can effectively reduce the moisture on the regenerated plastic rubber strip, and can blow the impurities out of the feeding port, so as to avoid damage of the cutter group and improve the product quality.
[0035] In the implementation process of the embodiment, the sliding assembly 9 is arranged between the cover plate 2 and the L-shaped body 1. The cover plate 2 is slid along the length direction of the L-shaped body 1 through the sliding assembly 9, so as to open or close the L-shaped body 1.
[0036] In the implementation process of the embodiment, the sliding assembly 9 comprises slide rails 90 arranged on the upper side and the lower side of the L-shaped body 1, and slide blocks 91 arranged at the positions corresponding to the slide rails 90 on the cover plate 2. The slide blocks 91 are matched and extended into the slide rails 90, so that the cover plate 2 is slid along the length direction of the slide rails 90, and then the L-shaped body 1 is opened or closed.
[0037] In the implementation process of the embodiment, the cover plate 2 is provided with a limiting plate 92 at one end. When the cover plate 2 is slid along the length direction of the slide rails 90, the limiting plate 92 is abutted with the side wall of the L-shaped body 1, so as to limit the sliding of the cover plate 2 along the length direction of the slide rails 90.
[0038] In the implementation process of the embodiment, a plurality of fastening holes 93 are arranged in the height direction of the limiting plate 92. The fastening holes 93 are used for detachably connecting the cover plate 2 with the L-shaped body 1.
[0039] In actual implementation process, in order to improve the smooth degree of cover plate opening and closing, the side of slider close to the bottom of slide rail is also provided with a ball.
[0040] The application provides a kind of anti-pollution regenerated plastic particle cutting device, it includes L type main body, cover plate being arranged on L type main body, feed inlet being arranged on cover plate, and back blowing component being arranged between cover plate and L type main body, regenerated plastic rubber strip can be entered L type main body by feed inlet along direction A and is granulated, by setting back blowing component between cover plate and L type main body, back blowing component can send airflow to the opposite direction of rubber strip conveying direction, and then the impurities near feed inlet are blown away from feed inlet, avoid impurities from feed inlet into L type main body, effectively prolong the service life of cutting device, reduce equipment maintenance cost, improve product quality and customer satisfaction, with the advantages of simple structure, easy operation, low implementation cost, easy to popularize and implement.
[0041] The above is the embodiment of the present application, and does not limit the present application, any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims
1. A pollution-resistant recycled plastic pelletizing device, characterized in that, The device includes an L-shaped body (1), a cover plate (2) disposed on the L-shaped body (1), a feed inlet (3) disposed on the cover plate (2), and a backflush assembly (4) disposed between the L-shaped body (1) and the cover plate (2). The recycled plastic strip enters the L-shaped body (1) through the feed inlet (3) in the direction A. The backflush assembly (4) is used to deliver airflow to the feed inlet (3) so that external impurities move in the opposite direction of the direction A.
2. The anti-pollution recycled plastic pelletizing device according to claim 1, characterized in that, The backflush assembly (4) includes a pipe hole group (40) on the outer wall of the L-shaped body (1), a connecting ear group (41) on the inner wall of the L-shaped body (1), and multiple air supply pipes (42) mounted on the connecting ear group (41). The multiple air supply pipes (42) are used to deliver airflow to the feed inlet (3) so that external impurities move in the opposite direction of direction A.
3. The anti-pollution recycled plastic pelletizing device according to claim 2, characterized in that, The pipe hole group (40) includes a first pipe hole (5) on the upper and lower sides of the L-shaped body (1) and a second pipe hole (6) on the left and right sides of the L-shaped body (1). Multiple air supply pipes (42) are first inserted through the first pipe hole (5) / second pipe hole (6) and then mounted on the connecting ear group (41) to deliver airflow to the feed inlet (3), thereby causing external impurities to move in the opposite direction of direction A.
4. The anti-pollution recycled plastic pelletizing device according to claim 3, characterized in that, The connecting ear assembly (41) includes a first connecting ear (7) located on the upper and lower sides of the inner wall of the L-shaped body (1), and a second connecting ear (8) located on the left and right sides of the inner wall of the L-shaped body (1). Multiple air supply pipes (42) are first inserted through the first pipe hole (5) / second pipe hole (6), and then mounted on the first connecting ear (7) / second connecting ear (8) to deliver airflow to the feed inlet (3), thereby causing external impurities to move in the opposite direction of direction A.
5. The anti-pollution recycled plastic pelletizing device according to claim 4, characterized in that, The first connecting ear (7) / the second connecting ear (8) includes a plate (80) disposed on the inner wall of the L-shaped body (1) and a mounting hole (81) disposed on the plate (80). Multiple air supply pipes (42) are first inserted through the first pipe hole (5) / the second pipe hole (6) and then through the mounting hole (81) to deliver airflow to the feed inlet (3), thereby causing external impurities to move in the opposite direction of direction A.
6. The anti-pollution recycled plastic pelletizing device according to claim 1, characterized in that, It also includes a sliding assembly (9) disposed between the cover plate (2) and the L-shaped body (1), wherein the cover plate (2) can slide along the length direction of the L-shaped body (1) via the sliding assembly (9) to open or close the L-shaped body (1).
7. The anti-pollution recycled plastic pelletizing device according to claim 6, characterized in that, The sliding component (9) includes slide rails (90) on the upper and lower sides of the L-shaped body (1) and a slider (91) on the cover plate (2) at the corresponding position of the slide rails (90). The slider (91) can be inserted into the slide rails (90) to allow the cover plate (2) to slide along the length of the slide rails (90), thereby opening or closing the L-shaped body (1).
8. The anti-pollution recycled plastic pelletizing device according to claim 7, characterized in that, A limiting plate (92) is provided on one end of the cover plate (2). When the cover plate (2) slides along the length direction of the slide rail (90), the limiting plate (92) can abut against the side wall of the L-shaped body (1) to restrict the cover plate (2) from sliding along the length direction of the slide rail (90).
9. A pollution-resistant recycled plastic pelletizing device according to claim 8, characterized in that, The limiting plate (92) is provided with a plurality of fastening holes (93) spaced apart along its height direction. The fastening holes (93) are used to make the cover plate (2) detachably connected to the L-shaped body (1).