A pretreatment device for recycling defective injection molded products

Abstract

This utility model discloses a pre-treatment device for recycling defective injection molded products, including a crushing and processing box with a crushing mechanism inside. A guide pipe is fixedly connected to the bottom of the crushing and processing box, and one end of the guide pipe is fixedly connected to a box body. A power component is used to compact the crushed material inside the box. The crushing mechanism inside the crushing and processing box crushes the defective injection molded products. The crushed material enters the box body through the guide pipe, and then the power component compacts the material inside the box body. This realizes an integrated pre-treatment process of crushing and compacting defective injection molded products, reducing intermediate transfer links, greatly improving processing efficiency, and quickly transforming loose crushed material into compacted blocks, reducing subsequent storage costs. In addition, the crushing mechanism is prone to high temperature due to friction during operation. The spray component can effectively cool the crushing rollers to avoid the high temperature affecting the service life of the crushing mechanism and the performance of the crushed defective injection molded product fragments.

Description

Technical Field

[0001] This utility model relates to the field of injection molding defective product recycling technology, specifically to a pretreatment device for injection molding defective product recycling. Background Technology

[0002] Recycling defective injection molded products (such as parts with non-compliant dimensions, parts with appearance defects, scraps, etc.) is an important part of reducing production costs and plastic pollution, and crushing and pre-treatment is the core step in the recycling process.

[0003] However, in the existing pre-treatment process for recycling defective injection molded products, there is generally a lack of a dedicated compaction mechanism for the crushed residue. The crushed residue is often loose and has a large volume. The loose residue requires a lot of storage space, which increases storage costs. Therefore, we need to propose a pre-treatment device for recycling defective injection molded products. Utility Model Content

[0004] The purpose of this utility model is to provide a pre-treatment device for recycling defective injection molded products. By setting up a structure that integrates crushing and compaction functions, a recyclable spraying component, and a reasonable overall layout, it achieves the effects of improving the pre-treatment efficiency of defective injection molded products, saving energy and protecting the environment, and reducing subsequent storage costs, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A pre-treatment device for recycling defective injection molded products includes: a crushing and processing box, which is equipped with a crushing mechanism inside. A guide pipe is fixedly connected to the bottom of the crushing and processing box, and one end of the guide pipe is fixedly connected to the box body. A power assembly for compacting the scrap inside the box has a discharge chute on one side wall of the box, and a box door is hinged to one side of the discharge chute. The water tank is fixedly connected to the bottom of the box body. The inside of the crushing and processing box is equipped with a spray assembly for cooling the crushing rollers in the crushing mechanism. The bottom end of the spray assembly is connected to the water tank.

[0006] Preferably, the power assembly includes a hydraulic cylinder, which is fixedly installed on the top of the housing, and one end of the hydraulic cylinder extends through the housing and is fixedly connected to a pressure plate.

[0007] Preferably, it also includes a guide rod, which is slidably inserted into the top of the housing, and the bottom end of the guide rod penetrates through the housing and is fixedly connected to the top of the pressure plate.

[0008] Preferably, the spraying assembly includes a water pump, one end of which is fixedly connected to the interior of the water tank via a pipe, and the other end of which is fixedly connected to a T-pipe. The top end of the T-pipe passes through the crushing and processing box and is fixedly connected to a spraying pipe.

[0009] Preferably, a number of atomizing nozzles are fixedly connected to the outer wall of the spray pipe.

[0010] Preferably, the bottom of the box body is provided with several sets of micro-holes for water drainage, and the interior of the box body is connected to the interior of the water tank through several sets of micro-holes for water drainage.

[0011] Preferably, the top of the crushing and processing box is fixedly connected to a feed hopper.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention utilizes a crushing mechanism within a crushing chamber to crush defective injection-molded products. The crushed fragments enter the chamber via a guide pipe, where a power unit compacts the fragments. This integrated pre-processing of crushing and compacting defective injection-molded products reduces intermediate transfer steps, significantly improves processing efficiency, and quickly transforms loose fragments into compacted blocks, reducing subsequent storage costs. Furthermore, the crushing mechanism is prone to generating high temperatures due to friction during operation; the spray assembly effectively cools the crushing rollers, preventing high temperatures from affecting the service life of the crushing mechanism and the performance of the defective injection-molded fragments. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the crushing and processing box of this utility model; Figure 3 This is a schematic diagram of the structure of the spray assembly of this utility model; Figure 4 This is a schematic diagram of the internal structure of the box body of this utility model.

[0014] In the diagram: 1. Crushing and processing box; 2. Crushing mechanism; 3. Feed guide pipe; 4. Box body; 5. Power assembly; 501. Hydraulic cylinder; 502. Pressure plate; 503. Guide rod; 6. Discharge chute; 7. Box door; 8. Water tank; 9. Spray assembly; 901. Water pump; 902. T-pipe; 903. Spray pipe; 904. Atomizing nozzle; 10. Water drop micro-hole; 11. Feed hopper. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-4 This utility model provides a technical solution: A pre-treatment device for recycling defective injection molded products includes: a crushing and processing box 1, which houses a crushing mechanism 2. The crushing mechanism 2 consists of two opposing rotating crushing rollers with sharp crushing teeth on their surfaces, capable of quickly crushing the defective injection molded products. A guide pipe 3 is fixedly connected to the bottom of the crushing and processing box 1. The guide pipe 3 is a smooth metal pipe with a polished inner wall to reduce resistance during material transport. One end of the guide pipe 3 is fixedly connected to a box body 4. By effectively crushing the defective injection molded products using the crushing mechanism 2 within the crushing and processing box 1, and smoothly guiding the crushed material into the box body 4 via the guide pipe 3, a seamless connection between the crushing of defective injection molded products and subsequent compaction processes is achieved. This makes the entire pre-treatment process smoother and more efficient, reduces the residence time of materials between stages, and improves processing efficiency.

[0017] The power assembly 5 is used to compact the crushed material inside the housing 4. The power assembly 5 is the core drive component of the entire compaction process. A discharge chute 6 is provided on one side wall of the housing 4. The size of the discharge chute 6 is designed according to the specifications of the compacted crushed material blocks to ensure smooth removal. A door 7 is hinged to one side of the discharge chute 6, and the edge of the door 7 is equipped with a sealing strip to ensure the airtightness of the housing 4 during compaction. By using the power assembly 5 to compact the crushed material inside the housing 4, and equipped with the discharge chute 6 and door 7, the compacted crushed material blocks can be easily removed for subsequent processing, making the operation of the entire device more convenient and improving production continuity.

[0018] Water tank 8 is fixedly connected to the bottom of the tank body 4. Water tank 8 is made of high-strength plastic, possessing a certain degree of corrosion resistance, and can store sufficient cooling water. The interior of the crushing processing tank 1 is equipped with a spray assembly 9 for cooling the crushing rollers in the crushing mechanism 2. The spray assembly 9 is a crucial component ensuring the normal operation of the crushing rollers. The bottom end of the spray assembly 9 is connected to the water tank 8, forming a cooling water circulation system. By setting up the water tank 8 and the spray assembly 9, the crushing rollers are effectively cooled, preventing overheating damage due to prolonged operation, extending their service life, and reducing equipment maintenance costs.

[0019] The power assembly 5 includes a hydraulic cylinder 501, which is fixedly installed on the top of the housing 4. The hydraulic cylinder 501 is a high-power, high-precision model, capable of providing stable and powerful pressure. One end of the hydraulic cylinder 501 extends through the housing 4 and is fixedly connected to a pressure plate 502. The pressure plate 502 is made of high-strength steel plate with a smooth, flat surface, enabling it to apply pressure evenly to the crushed material. By using the hydraulic cylinder 501 to drive the pressure plate 502 to compact the crushed material, the effect of efficiently and stably compacting the crushed material into blocks is achieved, improving the compaction quality of the crushed material, facilitating subsequent storage and transportation, and reducing subsequent storage costs.

[0020] It also includes a guide rod 503, which is slidably inserted into the top of the housing 4. The guide rod 503 is made of stainless steel and has a polished surface to reduce friction with the housing 4. The bottom end of the guide rod 503 passes through the housing 4 and is fixedly connected to the top of the pressure plate 502. By setting the guide rod 503 to guide the movement of the pressure plate 502, the pressure plate 502 is ensured to move vertically up and down during the compaction process, avoiding deviation, improving the compaction accuracy and stability, and ensuring that the crushed material is uniformly compacted.

[0021] The spray assembly 9 includes a water pump 901. One end of the water pump 901 is fixedly connected to the interior of the water tank 8 via a pipe. The water pump 901 is a high-performance centrifugal pump, capable of providing a stable water flow. The other end of the water pump 901 is fixedly connected to a T-pipe 902, which is made of metal and has good pressure resistance. The top end of the T-pipe 902 passes through the crushing and processing box 1 and is fixedly connected to a spray pipe 903. By setting up the spray assembly 9, which consists of the water pump 901, the T-pipe 902, and the spray pipe 903, the cooling water in the water tank 8 is evenly sprayed onto the crushing roller, improving the cooling effect and ensuring the normal operating temperature of the crushing roller.

[0022] Several sets of atomizing nozzles 904 are fixedly connected to the outer wall of the spray pipe 903, which can atomize the cooling water into fine water droplets, increasing the contact area between the cooling water and the crushing roller. By setting several sets of atomizing nozzles 904, a more comprehensive and effective cooling effect is achieved on the crushing roller, further improving the cooling efficiency and ensuring that the crushing roller maintains good performance during long-term operation.

[0023] The bottom of the housing 4 has several sets of micro-holes 10 for drainage. The micro-holes 10 have a small diameter, which can prevent debris from leaking out while allowing cooling water to pass through smoothly. The interior of the housing 4 is connected to the interior of the water tank 8 through the sets of micro-holes 10. By setting up the micro-holes 10, the cooling water can flow back into the water tank 8, realizing the effect of cooling water recycling, saving water resources, and reducing recycling costs.

[0024] The top of the crushing and processing box 1 is fixedly connected to a feed hopper 11. The feed hopper 11 adopts a conical design that is wider at the top and narrower at the bottom. The larger upper opening facilitates the feeding of defective injection molded products, while the smaller lower opening is tightly connected to the feed inlet of the crushing and processing box 1 to prevent material spillage. By setting up the feed hopper 11, the defective injection molded products are easily and smoothly introduced into the crushing and processing box 1, improving the efficiency and accuracy of feeding and reducing material waste.

[0025] Working Principle: When using this injection molding defective product recycling pretreatment device, the injection molding defective products are first fed into the crushing and processing box 1 through the feed hopper 11. The two crushing rollers of the crushing mechanism 2 rotate relative to each other, using crushing teeth to crush the injection molding defective products into small pieces. At the same time, the water pump 901 starts, transporting the cooling water in the water tank 8 through the pipeline to the tee pipe 902, and then atomizing it through the spray pipe 903 and the atomizing nozzle 904 before spraying it onto the crushing rollers to cool them down and prevent them from overheating and being damaged. After cooling, the cooling water flows back into the water tank 8 through the drainage micro-holes 10 at the bottom of the box 4, realizing the recycling of the cooling water. The crushed small pieces are smoothly introduced into the box 4 through the guide pipe 3. When the small pieces in the box 4 reach a certain amount, the hydraulic cylinder 501 starts, pushing the pressure plate 502 to move vertically downward under the guidance of the guide rod 503, applying pressure to compact the small pieces. After compaction, the chamber door 7 is opened, and the compacted fragments are removed from the discharge chute 6, completing the pre-processing for recycling defective injection molded products. Through this integrated design and collaborative operation, the device achieves efficient crushing, cooling, and compaction of defective injection molded products, effectively reducing subsequent storage costs.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An injection molding reject recycling pre-treatment apparatus, characterized by, Include: Crushing treatment box (1), which is provided with crushing mechanism (2) inside, the bottom of crushing treatment box (1) is fixedly connected with guide pipe (3), one end of guide pipe (3) is fixedly connected with box (4); Power assembly (5) for compacting the crushed material inside box (4), discharge slot (6) is formed in one side wall of box (4), one side of discharge slot (6) is hingedly connected with box door (7); Water tank (8) is fixedly connected to the bottom of box (4), the inside of crushing treatment box (1) is provided with spraying assembly (9) for cooling the crushing roller in crushing mechanism (2), the bottom end of spraying assembly (9) is communicated with water tank (8).

2. The injection molding defective product recycling pretreatment device according to claim 1, characterized in that: The power assembly (5) comprises a hydraulic cylinder (501), the hydraulic cylinder (501) is fixedly installed on the top of the box (4), and one end of the telescopic end of the hydraulic cylinder (501) penetrates the box (4) and is fixedly connected with the pressing plate (502).

3. The injection molding reject recycling pretreatment device according to claim 2, characterized in that: Further comprising a guide rod (503), the guide rod (503) is slidingly inserted into the top of the box (4), and the bottom end of the guide rod (503) penetrates the box (4) and is fixedly connected with the top of the pressing plate (502).

4. The injection molding defective product recycling pretreatment device according to claim 1, characterized in that: The spraying assembly (9) comprises a water pump (901), one end of the water pump (901) is fixedly communicated with the inside of the water tank (8) through a pipeline, the other end of the water pump (901) is fixedly communicated with a three-way pipe (902), and the top end of the three-way pipe (902) penetrates the crushing treatment box (1) and is fixedly communicated with a spraying pipe (903).

5. The injection molding reject recycling pretreatment device according to claim 4, characterized in that: The outer wall of the spraying pipe (903) is fixedly communicated with a plurality of groups of atomizing nozzles (904).

6. The injection molding reject recycling pretreatment device according to claim 1, characterized in that: The bottom of the box (4) is provided with a plurality of groups of water falling micropores (10), and the inside of the box (4) is communicated with the inside of the water tank (8) through the plurality of groups of water falling micropores (10).

7. The injection molding reject recycling pretreatment device according to claim 1, characterized in that: The top of the crushing treatment box (1) is fixedly communicated with a feeding hopper (11).

Images