A plastic scrap recycling machine

Abstract

The utility model provides a kind of plastic leftover material recycling machine, it is related to plastic recycling equipment technical field, including leftover material crusher, the outer wall bottom of leftover material crusher is fixedly connected with support frame, the inside of leftover material crusher is equipped with screening assembly.In the utility model, screening assembly is driven screening net along moving groove stable lifting by first electric push rod, and it is convenient for subsequent discharge by lifting and combined with external vibration motor, so as to realize efficient screening, and it is cooperated with scraping assembly to adopt telescopic scraper and rotary drive phased action, screening stage second scraper is stored, first scraper shields discharge port, avoids leakage or hindering screening when traditional scraping component is idle, and combined scraper is closely attached to screening net in cleaning stage, compared with the coverage of traditional single scraper is wider, can completely scrape off detained large particles, prevent mesh hole from being blocked, improve screening accuracy and cleaning efficiency, reduce manual intervention, reduce equipment failure rate, ensure continuous and stable operation.

Description

Technical Field

[0001] This utility model relates to the field of plastic recycling equipment technology, and in particular to a plastic scrap recycling machine. Background Technology

[0002] A plastic scrap recycling machine is a mechanical device specifically designed to process and recycle waste scraps (such as injection molding runners, defective products, and extrusion sprues) generated during the production of plastic products. Through a series of physical processes (mainly heating, melting, plasticizing, extrusion, and cooling), it transforms these dispersed and irregularly shaped plastic wastes back into uniform plastic granules that can be reused in production.

[0003] Most existing plastic scrap recycling machines only have a single crushing function and cannot effectively screen the crushed plastic particles, resulting in uneven particle size. Large pieces of plastic require a longer time to melt from the center during subsequent melting and processing. When they enter the screw barrel together with small pieces of plastic, it will cause uneven heating. The small pieces may have already overheated or even started to carbonize, while the large pieces have not yet completely melted, affecting the quality of subsequent reprocessing. Utility Model Content

[0004] The purpose of this invention is to provide a plastic scrap recycling machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a plastic scrap recycling machine, including a scrap crusher, a support frame fixedly connected to the bottom of the outer wall of the scrap crusher, a screening component inside the scrap crusher, and a collection component outside the scrap crusher;

[0006] The screening assembly includes symmetrically arranged moving grooves on the outer wall of the corner crusher. The inside of the corner crusher is equipped with a screening screen with a number of mesh holes evenly distributed at the bottom. A connecting plate is symmetrically fixedly connected to the outer wall of the screening screen. The outer wall of the connecting plate is slidably connected to the inner wall of the moving groove. A driving component for driving the screening screen to move up and down is symmetrically fixedly installed on the outer wall of the corner crusher. A scraping assembly is provided on the outside of the corner crusher.

[0007] Preferably, the driving component includes a first electric push rod symmetrically and fixedly connected to the outer wall of the corner crusher, and the output of the first electric push rod is fixedly connected to the bottom of the connecting plate.

[0008] Preferably, the scraping assembly includes a discharge port formed on the outer wall of the edge crusher. A first scraper is symmetrically rotatably connected to the inner wall of the discharge port. A receiving groove is formed on the inner wall of the first scraper. A sliding groove is symmetrically formed on the inner wall of the receiving groove. A second scraper is slidably connected inside the receiving groove. A slider is symmetrically fixedly connected to the outer wall of the second scraper. The outer wall of the slider is slidably connected to the inner wall of the sliding groove.

[0009] Preferably, a second electric push rod is fixedly connected to the outer wall of the first scraper, the output end of the second electric push rod is fixedly connected to the outer wall of the second scraper, and the outer wall of the edge crusher is symmetrically provided with mounting grooves. A motor is installed on the inner wall of the mounting groove, and the output end of the motor is fixedly connected to the top protrusion of the first scraper.

[0010] Preferably, the bottom of both the first scraper and the second scraper are in contact with the top of the screening screen.

[0011] Preferably, the collecting component includes fixing strips symmetrically installed on both sides of the discharge port. The outer wall of the fixing strip is provided with a sliding groove. A collecting frame is slidably connected to the inner wall of the sliding groove. Sliding blocks are symmetrically fixed to the outer wall of the collecting frame. A placement plate is fixedly connected to the bottom of the fixing strip. The bottom of the collecting frame is in contact with the top of the placement plate.

[0012] Preferably, an ultrasonic sensor is provided on the top of the inner wall of the collection frame, and a buzzer is provided on the outer wall of the collection frame.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, the screening component is driven by a first electric push rod to stably raise and lower the screening screen along the moving trough. The raising and lowering facilitates subsequent material discharge and, combined with an external vibration motor, achieves efficient screening. It works in conjunction with the scraping component, employing telescopic scrapers and a rotary drive for phased operation. During the screening stage, the second scraper is retracted and the first scraper blocks the discharge port, preventing material leakage or obstruction of screening when the traditional scraping component is idle. During the cleaning stage, the combined scrapers closely adhere to the screening screen, providing a wider coverage area compared to the traditional single scraper. This thoroughly removes large particles, prevents mesh blockage, improves screening accuracy and cleaning efficiency, reduces manual intervention, lowers equipment failure rate, and ensures continuous and stable operation.

[0015] 2. In this utility model, the collection component is adapted to the sliding block of the collection frame through the sliding groove of the fixed strip, and is stably supported by the placement plate, so that the collection frame can be quickly pushed and pulled to pick up and put down without disassembling the equipment, saving operation time. At the same time, the ultrasonic sensor detects the material height in real time, and the buzzer automatically alarms when the material is full, replacing the traditional manual inspection, avoiding material overflow due to negligence, reducing cleaning costs and environmental pollution, improving the convenience of collection operation, realizing intelligent early warning of full material, ensuring seamless connection between the collection link and the preceding cleaning process, and further improving the overall automation level and practicality of the equipment. Attached Figure Description

[0016] Figure 1 This utility model provides a perspective view of the main structure of a plastic scrap recycling machine;

[0017] Figure 2 This utility model provides a schematic diagram of the screening component structure of a plastic scrap recycling machine;

[0018] Figure 3 This utility model provides a schematic diagram of the screening component structure of a plastic scrap recycling machine;

[0019] Figure 4 This utility model presents a schematic diagram of the collection component structure of a plastic scrap recycling machine.

[0020] Legend:

[0021] 200. Scrap mill; 201. Support frame; 300. Screening assembly; 301. Moving trough; 302. Screening screen; 303. Mesh; 304. Connecting plate; 305. First electric push rod; 306. Discharge port; 307. First scraper; 308. Collection trough; 309. Slide chute; 310. Second scraper; 311. Sliding block; 312. Second electric push rod; 313. Motor; 314. Vibrating motor; 400. Collection assembly; 401. Fixing strip; 402. Sliding chute; 403. Collection frame; 404. Sliding block; 405. Placement plate; 406. Ultrasonic sensor; 407. Buzzer. Detailed Implementation

[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] 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. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0024] Example 1, according to Figures 1-4 As shown, a plastic scrap recycling machine includes a scrap shredder 200, a support frame 201 fixedly connected to the bottom of the outer wall of the scrap shredder 200, a screening component 300 inside the scrap shredder 200, and a collection component 400 outside the scrap shredder 200.

[0025] The screening assembly 300 includes symmetrically arranged moving grooves 301 on the outer wall of the corner crusher 200. A screening screen 302 is provided inside the corner crusher 200, with a plurality of mesh holes 303 evenly distributed at the bottom. A connecting plate 304 is symmetrically fixedly connected to the outer wall of the screening screen 302, and the outer wall of the connecting plate 304 is slidably connected to the inner wall of the moving groove 301. Driving components for lifting and lowering the screening screen 302 are symmetrically fixedly installed on the outer wall of the corner crusher 200. A scraping assembly is provided outside the corner crusher 200. The driving component includes a first electric push rod 305 symmetrically fixedly connected to the outer wall of the corner crusher 200, and the output of the first electric push rod 305 is fixedly connected to the bottom of the connecting plate 304. The scraping assembly includes a discharge port 306 on the outer wall of the corner crusher 200. A first scraper 307 is symmetrically rotatably connected to the inner wall of the first scraper 307. A collection groove 308 is provided on the inner wall of the first scraper 307. A sliding groove 309 is symmetrically provided on the inner wall of the collection groove 308. A second scraper 310 is slidably connected inside the collection groove 308. A slider 311 is symmetrically fixedly connected to the outer wall of the second scraper 310. The outer wall of the slider 311 is slidably connected to the inner wall of the sliding groove 309. A second electric push rod 312 is fixedly connected to the outer wall of the first scraper 307. The output end of the second electric push rod 312 is fixedly connected to the outer wall of the second scraper 310. An installation groove is symmetrically provided on the outer wall of the edge crusher 200. A motor 313 is installed on the inner wall of the installation groove. The output end of the motor 313 is fixedly connected to the top protrusion of the first scraper 307. The bottoms of the first scraper 307 and the second scraper 310 are in contact with the top of the screening screen 302.

[0026] The overall effect of Embodiment 1 is as follows: This structure achieves precise screening of crushed plastic granules and directional cleaning of large retained particles. The edge crusher 200 serves as the core processing carrier, and is stably fixed by the bottom support frame 201 to prevent shaking during subsequent screening. The internal screening screen 302 slides and adapts to the moving trough 301 through the symmetrical connecting plates 304 on the outer wall. The screening screen 302 has baffles on both sides that are higher than the moving trough 301, providing stable guidance for lifting and lowering, preventing particles from being missed or unevenly screened. The symmetrically arranged first electric push rods 305 are directly fixed to the bottom of the connecting plate 304. The screen 302 can be driven to move stably up and down along the moving trough 301. The lifting speed and amplitude can be adjusted to adapt to the screening requirements of plastic particles of different sizes. A vibration motor 314 is provided on the outside of the edge crusher 200 to ensure screening efficiency and grading accuracy. The scraping assembly works in conjunction with the screening process through telescopic adjustment and rotation drive. When the first electric push rod 305 drives the screen 302 to crush and screen plastic particles, the second scraper 310 is completely retracted into the receiving groove 308 of the first scraper 307 by the second electric push rod 312. The slider 311 slides along the trough 309. The material slides smoothly while the motor 313 drives the first scraper 307 to rotate to the discharge port 306, blocking the discharge port 306 to prevent fine particles from leaking out. This ensures that all particles are classified by the mesh 303 of the screening screen 302. Fine particles fall to the lower part of the edge crusher 200, while large particles remain on the surface of the screening screen 302. After screening, the motor 313 drives the first scraper 307 to rotate from the blocked position at the discharge port 306 to above the screening screen 302. The second electric push rod 312 extends and pushes the second scraper 310 out of the collection trough 308, so that the bottoms of the first scraper 307 and the second scraper 310 are closely attached to the top of the screening screen 302, forming a combined scraping structure that scrapes and sends larger plastic particles toward the discharge port 306, achieving directional discharge of large particles and preventing the mesh 303 from clogging. This forms a closed loop of functions for screening and classifying crushed particles and directional cleaning of large particles, ensuring screening accuracy and solving the problem of cleaning large particles, thereby improving the automated processing capability and continuous operational stability of the recycling machine.

[0027] Example 2, according to Figure 4 As shown, the collection assembly 400 includes fixing bars 401 symmetrically installed on both sides of the discharge port 306. The outer wall of the fixing bar 401 is provided with a sliding groove 402. The inner wall of the sliding groove 402 is slidably connected to a collection frame 403. The outer wall of the collection frame 403 is symmetrically fixedly connected with sliding blocks 404. The bottom of the fixing bar 401 is fixedly connected with a placement plate 405. The bottom of the collection frame 403 is in contact with the top of the placement plate 405. The top of the inner wall of the collection frame 403 is provided with an ultrasonic sensor 406. The outer wall of the collection frame 403 is provided with a buzzer 407.

[0028] The overall effect of Embodiment 2 is as follows: The collection component 400 is for collecting larger plastic particles after screening. Through the combination of a convenient collection structure, intelligent full material reminder, and scraping structure, it achieves high efficiency and intelligence in material collection. The collection component 400, targeting the material discharge direction of the outlet 306, uses symmetrically arranged fixing strips 401 to build a collection guide frame. The sliding groove 402 on the outer wall of the fixing strip 401 slides and adapts to the sliding block 404 on the outer wall of the collection frame 403, facilitating the smooth pushing or pulling of the collection frame 403 along the sliding groove 402, and enabling operators to quickly pick up and put out the collection frame. Simultaneously, the placement plate 405 at the bottom of the fixing strip 401 provides stable support to the bottom of the collection frame 403, preventing the collection frame 403 from slipping. 03 Due to the downward displacement caused by the weight of the material, the collection frame 403 is always directly below the discharge port 306, eliminating the risk of material spillage. The ultrasonic sensor 406 on the top of the inner wall of the collection frame 403 can detect the material accumulation height in the frame in real time. When the material height reaches the set threshold, the ultrasonic sensor 406 transmits a signal to the buzzer 407 on the outer wall. The buzzer 407 emits an audible and visual alarm to remind the operator to replace the empty collection frame 403 in time, avoiding material overflow that could cause environmental mess or waste. At the same time, it reduces the cost of frequent manual inspections, improves the automation and intelligence level of the collection process, and ensures that there are no breaks in the entire process from crushing and grading of particles to the final collection of large particles, thereby improving the overall processing efficiency and practicality of the plastic scrap recycling machine.

[0029] The working principle of the entire equipment is as follows: First, the plastic granules crushed by the edge crusher 200 enter the equipment. The bottom support frame 201 ensures the edge crusher 200 is stable and fixed, preventing shaking during operation. The symmetrically installed first electric push rod 305 drives the connecting plate 304 to slide along the moving groove 301 on the outer wall of the edge crusher 200, thereby driving the internal screening screen 302 to rise and fall stably. By adjusting the lifting speed and amplitude, plastic granules that meet the standard particle size fall through the mesh 303 of the screening screen 302. Fine particles fall to the lower part of the edge crusher 200, while larger particles remain on the surface of the screening screen 302. At this stage, the scraping assembly is simultaneously in the adaptation state, and the second electric push rod 312 retracts, driving the second scraper 310 along the sliding groove 309 in the first scraper 307 receiving groove 308 through the slider 311. The guide is fully retracted, and at the same time, the motor 313 drives the first scraper 307 to rotate to the discharge port 306, completely blocking the discharge port 306 to prevent fine particles from leaking from the discharge port 306 during the screening process, ensuring that all particles are graded by the screening screen 302.

[0030] After the screening process is completed, the motor 313 starts again, driving the first scraper 307 to rotate from the obstruction position of the discharge port 306 to the top of the screening screen 302. Then, the second electric push rod 312 extends, pushing the second scraper 310 out of the collection groove 308, so that the bottoms of the first scraper 307 and the second scraper 310 are closely attached to the surface of the screening screen 302 to meet the structural design requirements, forming a combined scraping structure. Under the movement of the scraper, the larger plastic particles retained on the surface of the screening screen 302 are uniformly scraped and sent towards the discharge port 306, and finally discharged from the discharge port 306, completing the directional cleaning of large particles, avoiding the accumulation of large particles and clogging the mesh 303, and ensuring the continuity of subsequent screening operations.

[0031] Finally, in the collection assembly 400, the symmetrically arranged fixing bars 401 are adapted to the sliding blocks 404 of the collection frame 403 through the outer wall sliding groove 402, so that the collection frame 403 can be smoothly pushed in and directly below the discharge port 306. The placement plate 405 at the bottom of the fixing bars 401 provides stable support for the collection frame 403, preventing the collection frame 403 from drooping and shifting due to the weight of the material, and ensuring that larger particles fall completely into the collection frame 403. At the same time, the ultrasonic sensor 406 on the top of the inner wall of the collection frame 403 detects the material accumulation height in the frame in real time. When the material height reaches the set threshold and approaches the top of the collection frame 403, the ultrasonic sensor 406 transmits the signal to the buzzer 407 on the outer wall of the collection frame 403. The buzzer 407 emits an audible and visual alarm to remind the operator to replace the empty collection frame 403 in time to avoid material overflow causing waste or environmental mess.

[0032] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A plastic scrap recycling machine, comprising a scrap shredder (200), wherein a support frame (201) is fixedly connected to the bottom of the outer wall of the scrap shredder (200), characterized in that: The scrap crusher (200) is equipped with a screening component (300) inside and a collection component (400) outside. The screening component (300) includes a moving groove (301) symmetrically opened on the outer wall of the corner crusher (200). The corner crusher (200) is provided with a screening screen (302) inside. The bottom of the screening screen (302) is evenly distributed with a number of mesh holes (303). The outer wall of the screening screen (302) is symmetrically fixedly connected with a connecting plate (304). The outer wall of the connecting plate (304) is slidably connected to the inner wall of the moving groove (301). The outer wall of the corner crusher (200) is symmetrically fixedly installed with a driving component for driving the screening screen (302) to move up and down. The outside of the corner crusher (200) is provided with a scraping component.

2. The plastic scrap recycling machine according to claim 1, characterized in that: The driving component includes a first electric push rod (305) symmetrically fixedly connected to the outer wall of the edge crusher (200), and the output of the first electric push rod (305) is fixedly connected to the bottom of the connecting plate (304).

3. A plastic scrap recycling machine according to claim 1, characterized in that: The scraping assembly includes a discharge port (306) on the outer wall of the edge crusher (200). A first scraper (307) is symmetrically rotatably connected to the inner wall of the discharge port (306). A receiving groove (308) is provided on the inner wall of the first scraper (307). A sliding groove (309) is symmetrically provided on the inner wall of the receiving groove (308). A second scraper (310) is slidably connected inside the receiving groove (308). A slider (311) is symmetrically fixedly connected to the outer wall of the second scraper (310). The outer wall of the slider (311) is slidably connected to the inner wall of the sliding groove (309).

4. A plastic scrap recycling machine according to claim 3, characterized in that: The outer wall of the first scraper (307) is fixedly connected to a second electric push rod (312), the output end of the second electric push rod (312) is fixedly connected to the outer wall of the second scraper (310), the outer wall of the edge crusher (200) is symmetrically provided with mounting grooves, the inner wall of the mounting groove is equipped with a motor (313), and the output end of the motor (313) is fixedly connected to the top protrusion of the first scraper (307).

5. A plastic scrap recycling machine according to claim 3, characterized in that: The bottom of both the first scraper (307) and the second scraper (310) are in contact with the top of the screening screen (302).

6. A plastic scrap recycling machine according to claim 1, characterized in that: The collecting component (400) includes a fixing strip (401) symmetrically installed on both sides of the discharge port (306). The outer wall of the fixing strip (401) is provided with a sliding groove (402). The inner wall of the sliding groove (402) is slidably connected to a collecting frame (403). The outer wall of the collecting frame (403) is symmetrically fixedly connected with a sliding block (404). The bottom of the fixing strip (401) is fixedly connected to a placement plate (405). The bottom of the collecting frame (403) is in contact with the top of the placement plate (405).

7. A plastic scrap recycling machine according to claim 6, characterized in that: An ultrasonic sensor (406) is provided on the top of the inner wall of the collection frame (403), and a buzzer (407) is provided on the outer wall of the collection frame (403).

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