Leftover material recycling and crushing device for plastic product production

This plastic product manufacturing scrap recycling and crushing device, driven by a motor and using a screw transmission mechanism, combined with vibrating screening and screw conveying, solves the problem of uneven crushing, achieves uniform particle size and impurity removal, and improves product quality and processing efficiency.

CN224060222UActive Publication Date: 2026-03-31ZHANGJIAGANG MAICHUANG AUTOMATION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-15
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

In existing scrap recycling and crushing equipment for plastic products, the blades wear and age during the crushing process, resulting in reduced cutting ability and uneven crushing. This leads to increased difficulty in melting during subsequent reprocessing and unstable product quality.

Method used

The system employs a combination of motor drive and threaded transmission mechanism to rotate the container and drive the screening frame to vibrate at high frequency via a vibrating motor. This, combined with the linkage of elastic support components, enables high-frequency screening and secondary crushing, ensuring uniform particle size. The conveying mechanism utilizes a motor-driven spiral blade to achieve uniform feeding.

Benefits of technology

To ensure uniform particle size of the pulverized scraps, remove impurities, reduce melting difficulty, improve product quality, enhance the stability and consistency of pulverization, and reduce product defects.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a leftover material recycling and smashing device for plastic product production, which relates to the technical field of plastic product production and comprises a smashing mechanism, a conveying mechanism is arranged at the top of the smashing mechanism, the smashing mechanism comprises a support frame, a smashing device body is arranged at the top of the support frame, and a fixing plate is fixedly connected to the inner surface wall of the support frame. The top of the fixing plate is fixedly connected with four springs, and the tops of the four springs are fixedly connected with linkage blocks. According to the utility model, under the mutual cooperation of the crushing mechanism and the conveying mechanism, the granularity of crushed leftover materials can be ensured to be uniform, so that the melting difficulty of the leftover materials is reduced during subsequent reprocessing, the plasticizing effect is obviously optimized, the subsequent reprocessing of the leftover materials into plastic products is facilitated, in addition, impurities in the plastic products are removed in the screening process, and the quality of the plastic products is improved. And the quality of the final plastic product is further improved, and product defects caused by impurities are reduced.
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Description

Technical Field

[0001] This utility model relates to the field of plastic product manufacturing technology, and in particular to a scrap recycling and crushing device for plastic product manufacturing. Background Technology

[0002] Plastic products are made from synthetic or natural resins as the main raw materials, with the addition of various additives, through processes such as injection molding, extrusion, and blow molding. They cover a wide range of fields, including daily necessities and industrial parts, and are characterized by their light weight and corrosion resistance.

[0003] During the production of plastic products, scraps are generated due to errors in cutting, trimming, and molding processes. These scraps have certain recycling value, so they need to be recycled and reprocessed. The scrap recycling and crushing device for plastic product production crushes plastic scraps into small pieces through blade rotation and extrusion, ensuring that the recycled material has uniform particle size and stable quality, which is convenient for subsequent reprocessing into plastic products.

[0004] However, existing scrap recycling and crushing devices for plastic product manufacturing have the following shortcomings:

[0005] In the existing technology, during the crushing process of scrap recycling and crushing equipment for plastic product manufacturing, the cutting ability of the blades decreases due to wear and aging after long-term use, and the internal structure design of the crushing chamber is poor, resulting in uneven force on the scrap. Some of the crushed scrap has excessively large particle size, which increases the difficulty of melting and plasticizing during subsequent reprocessing, leading to unstable product quality and reduced performance.

[0006] Therefore, we propose a scrap recycling and crushing device for plastic product manufacturing to solve the problems mentioned above. Utility Model Content

[0007] The purpose of this invention is to provide a scrap recycling and crushing device for plastic product manufacturing. It utilizes a motor drive combined with a threaded transmission mechanism to tightly fit two container shells together. With the help of the motor drive and gear transmission, the clamped pressure container can be rotated. At the same time, the position of the welding head can be flexibly adjusted by rotating the threaded rod driven by the motor, thereby solving the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: a scrap recycling and crushing device for plastic product manufacturing, comprising a crushing mechanism, wherein a conveying mechanism is provided on the top of the crushing mechanism;

[0009] The crushing mechanism includes a support frame, with the main body of the crushing device mounted on the top of the support frame. A fixing plate is fixedly connected to the inner wall of the support frame, and four springs are fixedly connected to the top of the fixing plate. A linkage block is fixedly connected to the top of each of the four springs. A screening frame is fixedly connected between the outer walls of the four linkage blocks. A vibrating motor is fixedly connected to the outer wall of the screening frame. A coarse screen and a fine screen are fixedly connected to the inner wall of the screening frame. A first guide plate and a second guide plate are fixedly connected to the outer wall of the screening frame.

[0010] Preferably, the conveying mechanism includes a conveying pipe, and the outer wall of the conveying pipe has two mounting holes.

[0011] Preferably, bearings are fixedly inserted into the inner walls of both mounting holes, and a rotating shaft is fixedly inserted between the interiors of the two bearings.

[0012] Preferably, a spiral blade is fixedly sleeved on the outer wall of the rotating shaft, and a drive motor is fixedly connected to one side of the outer wall of the rotating shaft.

[0013] Preferably, the outer wall of the conveying pipe is fixedly connected to a feed hopper, and the outer wall of the conveying pipe is fixedly connected to a discharge pipe.

[0014] Preferably, the outer wall of the conveying pipe is fixedly connected to a guide pipe.

[0015] Preferably, the top of the main body of the crushing device is fixedly connected to the output end of the feed pipe.

[0016] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0017] 1. In this utility model, by cooperating with the crushing mechanism and the conveying mechanism, a vibrating motor is used to drive and link with the elastic support component, causing the screening component to generate high-frequency vibration. This is used to screen the plastic scraps after preliminary crushing. During this process, the larger plastic particles will re-enter the conveying component for secondary crushing. In this way, it can be ensured that the crushed scraps have uniform particle size, which reduces the difficulty of melting the scraps during subsequent reprocessing, significantly optimizes the plasticizing effect, and facilitates subsequent reprocessing into plastic products. In addition, the screening process removes impurities from the plastic products, further improving the quality of the final plastic products and reducing product defects caused by impurities.

[0018] 2. In this utility model, by the interaction of the various components of the conveying mechanism, the function of uniform feeding is achieved by using motor drive and combined with the transmission of the screw assembly, ensuring that the material can enter the crushing device at a uniform speed when the plastic product is crushed, thereby ensuring the stability and consistency of the crushing effect. Attached Figure Description

[0019] Figure 1 This utility model provides a front view perspective view of a scrap recycling and crushing device for plastic product manufacturing.

[0020] Figure 2 This utility model provides a perspective view of the crushing mechanism in a scrap recycling and crushing device for plastic product manufacturing;

[0021] Figure 3 This utility model provides a three-dimensional exploded view of the crushing mechanism in a scrap recycling and crushing device for plastic product manufacturing.

[0022] Figure 4 This utility model provides a three-dimensional exploded view of the conveying mechanism in a scrap recycling and crushing device for plastic product manufacturing.

[0023] Legend: 1. Crushing mechanism; 101. Support frame; 102. Crushing device body; 103. Fixing plate; 104. Spring; 105. Linkage block; 106. Screening frame; 107. Vibrating motor; 108. Coarse screen; 109. Fine screen; 110. First guide plate; 111. Second guide plate; 2. Conveying mechanism; 201. Conveying pipe; 202. Mounting hole; 203. Bearing; 204. Rotating shaft; 205. Spiral blade; 206. Drive motor; 207. Feed hopper; 208. Discharge pipe; 209. Guide inclined pipe. Detailed Implementation

[0024] 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.

[0025] 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.

[0026] Example 1, as shown in the attached document Figure 1 -Appendix Figure 4 As shown, this utility model provides a technical solution: a scrap recycling and crushing device for plastic product manufacturing, including a crushing mechanism 1, and a conveying mechanism 2 is provided on the top of the crushing mechanism 1;

[0027] The crushing mechanism 1 includes a support frame 101, a crushing device body 102 is mounted on the top of the support frame 101, a fixing plate 103 is fixedly connected to the inner wall of the support frame 101, four springs 104 are fixedly connected to the top of the fixing plate 103, a linkage block 105 is fixedly connected to the top of each of the four springs 104, a screening frame 106 is fixedly connected between the outer walls of the four linkage blocks 105, a vibration motor 107 is fixedly connected to the outer wall of the screening frame 106, a coarse screen 108 is fixedly connected to the inner wall of the screening frame 106, a fine screen 109 is fixedly connected to the inner wall of the screening frame 106, a first guide plate 110 is fixedly connected to the outer wall of the inner wall of the screening frame 106, and a second guide plate 111 is fixedly connected to the outer wall of the screening frame 106.

[0028] The overall effect achieved in Embodiment 1 is as follows: During the crushing process, after the crushing device body 102 crushes the plastic product, the material falls to the top of the coarse screen 108. At this time, the vibration motor 107 is started, and the motor operation causes the screening frame 106 to generate high-frequency vibration. With the elastic support of four springs 104 and four linkage blocks 105, the vibration is made more stable and continuous. The crushed plastic product jumps and rolls continuously on the top of the coarse screen 108 and slides down its slope. Plastic products that meet the particle size requirements will pass through the coarse screen 108 and fall to the fine screen. Larger plastic products slide down the inclined surface of the coarse screen 108 and then enter the conveying assembly through the first guide plate 110. They are then fed back into the main body 102 of the crushing device for secondary crushing to ensure that all plastic products reach the specified particle size. Plastic products that fall to the top of the fine screen 109 and meet the particle size requirements continue to be screened on top of it. The fine screen 109 will separate the impurities. In this way, the scrap plastic products after crushing can be made to have a uniform particle size and remove impurities, making it easier to reprocess them into plastic products later.

[0029] Example 2, as Figure 2-4 As shown, the conveying mechanism 2 includes a conveying pipe 201. Two mounting holes 202 are opened on the outer wall of the conveying pipe 201. Bearings 203 are fixedly inserted into the inner wall of each of the two mounting holes 202. A rotating shaft 204 is fixedly inserted between the interiors of the two bearings 203. Spiral blades 205 are fixedly sleeved on the outer wall of the rotating shaft 204. A drive motor 206 is fixedly connected to one side of the outer wall of the rotating shaft 204. A feed hopper 207 is fixedly connected to the outer wall of the conveying pipe 201. A discharge pipe 208 is fixedly connected to the outer wall of the conveying pipe 201. A guide pipe 209 is fixedly connected to the outer wall of the conveying pipe 201. The top of the crushing device body 102 is fixedly connected to the output end of the discharge pipe 208.

[0030] The overall effect of Embodiment 2 is as follows: During use, the scrap plastic products to be crushed are poured into the feed hopper 207, and then the drive motor 206 is started. The output end of the drive motor 206 drives the rotating shaft 204 and the spiral blade 205 to rotate synchronously. When the spiral blade 205 rotates, it pushes the scrap inside the conveying pipe 201 to be conveyed upward along the pipe. Then, these scraps pass through the discharge pipe 208 at a uniform speed and enter the crushing device body 102 to be crushed. This method realizes the function of uniform feeding, ensuring that the material can enter the crushing device at a uniform speed when crushing plastic products, thereby ensuring the stability and consistency of the crushing effect and avoiding problems such as insufficient crushing or equipment jamming caused by uneven feeding. Moreover, the conveying pipe 201 is set at an incline, which allows the worker to perform the feeding operation at a lower position, effectively reducing the labor intensity of the worker and improving the convenience and safety of operation.

[0031] The working principle of the entire equipment is as follows: First, connect the equipment power supply to an external power source to ensure the internal electrical components can operate normally. Then, the worker pours the scrap plastic products to be crushed into the feed hopper 207. Next, start the drive motor 206. After the drive motor 206 starts running, its output end drives the rotating shaft 204 to rotate. The rotating shaft 204 then drives the spiral blades 205 to rotate as well. During rotation, the spiral blades 205 push the scrap plastic products inside the conveying pipe 201 upwards along the pipe. These scrap plastic products then pass through the discharge pipe 208 at a uniform speed and enter the crushing device body 102 for crushing. The crushed plastic products fall onto the top of the coarse screen 108. At this time, the vibration motor 107 is turned on. After the vibration motor 107 starts, it causes the screening frame 106 to vibrate at a high frequency, and with the help of four... The elastic support of spring 104 and four linkage blocks 105 makes the vibration more stable and continuous. The crushed plastic products jump and roll continuously on the top of the coarse screen 108 and slide down the inclined surface of the coarse screen 108. During this process, plastic products that meet the particle size requirements will pass through the coarse screen 108 and fall to the top of the fine screen 109, while plastic products with larger particle sizes will slide down the inclined surface of the coarse screen 108 and then enter the conveying pipe 201 through the first guide plate 110 and the guide inclined pipe 209, and be transported back to the main body 102 of the crushing device for secondary crushing, so as to ensure that all plastic products can reach the specified particle size. Plastic products that fall to the top of the fine screen 109 and meet the particle size requirements continue to be screened on the top of the fine screen 109. The fine screen 109 will separate the impurities and discharge them through the corresponding second guide plate 111.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present 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 the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A plastic product production scrap recycling pulverizing device, characterized by: Including the mechanism (1) of pulverization, the top of the mechanism (1) of pulverization is provided with conveying mechanism (2); The support frame (101) is provided with the main body (102) of pulverization device on the top, and the inner surface wall of the support frame (101) is fixedly connected with the fixed plate (103), the top of the fixed plate (103) is fixedly connected with four springs (104), the top of the four springs (104) is fixedly connected with the linkage block (105), the outer wall of the four linkage blocks (105) is fixedly connected with the screening frame (106) between one side, the outer wall of the screening frame (106) is fixedly connected with the vibration motor (107) on one side, the inner surface wall of the screening frame (106) is fixedly connected with the coarse screen (108), the inner surface wall of the screening frame (106) is fixedly connected with the fine screen (109), the inner surface wall of the screening frame (106) is fixedly connected with the first guide plate (110) on one side, and the outer wall of the screening frame (106) is fixedly connected with the second guide plate (111) on one side.

2. A plastic product production scrap recycling and pulverizing device according to claim 1, characterized in that: The conveying mechanism (2) comprises a conveying pipe (201), and two mounting holes (202) are formed in the outer surface wall of the conveying pipe (201).

3. A plastic product production scrap recycling and pulverizing device according to claim 2, characterized in that: The inner surface wall of the two mounting holes (202) is fixedly inserted with a bearing (203), and the inner part of the two bearings (203) is fixedly inserted with a rotating shaft (204).

4. A plastic product production scrap recycling and pulverizing device according to claim 3, characterized in that: The outer surface wall of the rotating shaft (204) is fixedly sleeved with a spiral blade (205), and the outer wall of the rotating shaft (204) is fixedly connected with a driving motor (206).

5. A plastic product production scrap recycling and pulverizing device according to claim 4, characterized in that: The outer surface wall of the conveying pipe (201) is fixedly connected with a feeding hopper (207), and the outer surface wall of the conveying pipe (201) is fixedly connected with a discharging pipe (208).

6. A plastic product production scrap recycling and pulverizing device according to claim 5, characterized in that: The outer surface wall of the conveying pipe (201) is fixedly connected with a guide inclined pipe (209).

7. A plastic product production scrap recycling and pulverizing device according to claim 6, characterized in that: The top of the main body (102) of pulverization device is fixedly communicated with the output end of the discharging pipe (208).