A plastic leftover material crushing and recycling device

Abstract

The utility model discloses a kind of plastic leftover material crushing recycling devices, belong to plastic crushing technical field.It is including machine case, the top surface of machine case is connected with feed hopper, the inside of machine case is installed with crushing piece, the inside of machine case is installed with support frame below the location of crushing piece, the inside of support frame is slid with filter disc, the inside of machine case is installed with four groups of connecting blocks above the location of support frame, spring is connected between four groups of connecting blocks and support frame, the outside of optical shaft is installed with a pair of eccentric wheels, a pair of eccentric wheels extrude the bottom surface of support frame, the outside of machine case is installed with first motor, the output end of first motor and optical shaft transmission connection, the side of machine case is opened with discharge port below the location of optical shaft;The technical scheme is integrated crushing piece and filtering mechanism, effectively solve the problem that traditional device is not filtered, resulting in uneven particle size of crushed material, additional screening equipment needs to be configured.

Description

Technical Field

[0001] This utility model relates to the field of plastic crushing technology, specifically to a plastic scrap crushing and recycling device. Background Technology

[0002] In the plastics processing industry, injection molding, extrusion, blow molding, and other production processes generate a large amount of plastic scraps, which account for 10% to 30% of the total raw material consumption. To achieve resource recycling and reduce production costs, the crushing and recycling of plastic scraps has become a standard process in the industry: the scraps are crushed into small particles by crushing equipment, then washed, dried, and remelted and granulated as secondary raw materials for the production of low-precision plastic products. This not only reduces environmental pollution from plastic waste but also significantly reduces the raw material procurement costs for enterprises.

[0003] The core structure of existing plastic scrap crushing and recycling devices typically includes a feed hopper, a crushing chamber, and a discharge channel. Their working principle involves high-speed rotating blades within the crushing chamber breaking down the scrap, with the crushed material discharged directly through the discharge channel. However, these devices generally lack the function of filtering the crushed plastic. Because the initial morphology and hardness of the scrap vary, and factors such as blade wear and fluctuations in feed speed during the crushing process affect the crushing effect, the discharged material often contains particles of different sizes, including both fine particles that meet the requirements and larger, insufficiently crushed pieces.

[0004] When these unfiltered mixtures are directly fed into subsequent processes, uneven particle size can lead to incomplete melting and uneven mixing, severely impacting the quality of the recycled material. Furthermore, larger pieces may clog pipes and damage equipment components during transport or processing, increasing the risk of production failures. To overcome this deficiency, companies need to configure additional screening equipment for secondary processing of the crushed material, which not only increases equipment investment and floor space requirements but also prolongs the recycling process and reduces overall production efficiency. Therefore, developing a plastic scrap recycling device that integrates crushing and filtering functions is of great significance for optimizing the recycling process and improving the quality of recycled materials. Utility Model Content

[0005] The purpose of this invention is to provide a plastic scrap crushing and recycling device to solve the problems mentioned in the background art.

[0006] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0007] A plastic scrap crushing and recycling device includes a casing with a feed hopper connected to its top surface. A crushing component is installed inside the casing to crush the plastic scrap, breaking large pieces into smaller particles. A support frame is installed below the crushing component inside the casing, and a filter disc slides inside the support frame. The filter disc screens the crushed particles, separating those that meet the particle size requirements, preventing insufficiently crushed large pieces from entering subsequent processes. Above the support frame inside the casing is a... Four sets of connecting blocks, each connected to a support frame by a spring. Inside the housing, a light shaft is rotatably connected below the support frame. A pair of eccentric wheels are mounted on the outer side of the light shaft, pressing against the bottom surface of the support frame. A first motor is mounted on the outer side of the housing, with its output connected to the light shaft. A discharge port is located on the side of the housing below the light shaft. The first motor drives the eccentric wheels to rotate, which, in conjunction with the springs, causes the support frame to vibrate the filter disc, preventing particles from clogging the filter disc and improving filtration efficiency.

[0008] Furthermore, the crushing component includes a pair of rotating shafts rotatably mounted inside the housing. Each shaft has several crushing discs mounted on its outer side. One end of each shaft penetrates the housing and is coaxially connected to a gear. The gears mesh with each other. A protective cover is installed on the outer side of the housing. The gears are located inside the protective cover. A second motor is mounted on the side of the protective cover. The output end of the second motor is connected to one of the shafts via a transmission connection. The gear meshing transmission ensures that the two shafts rotate synchronously in opposite directions, causing the crushing discs on the shafts to rotate relative to each other. This allows for shearing and crushing of scrap materials, improving crushing efficiency and effect. The protective cover protects the gears, preventing dust and impurities from affecting the transmission and ensuring operational safety.

[0009] Furthermore, the support frame is U-shaped, and a limiting groove is provided on the inner wall of the support frame. The edge of the filter disc slides within the limiting groove, which guides and limits the filter disc, ensuring that the filter disc slides stably within the support frame and preventing deviation. An opening is provided on the side of the casing, and a baffle is hinged inside the opening. The filter disc slides within the opening, and the opening and the baffle cooperate to facilitate the removal of the filter disc for cleaning of residual large pieces of material, making operation convenient. The sealing strip on the outside of the baffle can seal the opening to prevent particles from leaking out during the crushing process, ensuring a clean working environment.

[0010] Furthermore, the axis of the optical axis and the axis of the support frame are on the same vertical plane perpendicular to the bottom surface of the chassis, ensuring that the force exerted by the eccentric wheel on the support frame is uniform, so that the support frame drives the filter disc to vibrate smoothly, avoiding equipment wear or filter disc displacement caused by uneven force.

[0011] Furthermore, the specifications of the pair of gears are consistent to ensure that the two shafts rotate at the same speed and in opposite directions, making the relative movement of the crushing disc more coordinated, the crushing effect more uniform, and avoiding insufficient crushing or equipment overload caused by speed differences.

[0012] Furthermore, a groove is provided on the top surface of the filter disc, and a pull rod is installed in the groove. The pull rod provides a point of leverage for removing the filter disc, making it easy for the operator to hold and pull the filter disc out of the support frame, thus reducing the difficulty of operation.

[0013] Furthermore, several magnets are embedded in the limiting groove, and several iron pieces are embedded on the side of the filter disc. The magnets attract the iron pieces, and the attraction between the magnets and the iron pieces can firmly fix the filter disc in the support frame, preventing the filter disc from accidentally slipping out during vibration and ensuring the stability of the filtration process.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This plastic scrap crushing and recycling device, by integrating crushing components and a filtering mechanism, effectively solves the problem of uneven particle size of crushed materials and the need for additional screening equipment due to the lack of filtering function in traditional devices: a pair of rotating shafts and crushing discs of the crushing components crush the scraps, and the filter disc below screens the particles, with qualified particles being discharged through the outlet; the first motor drives the eccentric wheel in conjunction with the spring to vibrate the filter disc, preventing clogging; the filter disc can be removed and cleaned through the opening, achieving integrated crushing and filtering without additional equipment, reducing equipment investment and floor space, shortening the recycling process, and improving the quality of recycled materials. Attached Figure Description

[0015] Figure 1 This is a first three-dimensional structural schematic diagram of the plastic scrap crushing and recycling device disclosed in an embodiment of the present utility model;

[0016] Figure 2 This is a second three-dimensional structural diagram of the plastic scrap crushing and recycling device disclosed in an embodiment of the present utility model;

[0017] Figure 3 This is a cross-sectional structural diagram of the plastic scrap crushing and recycling device disclosed in an embodiment of this utility model;

[0018] Figure 4 This is an exploded structural diagram of the plastic scrap crushing and recycling device disclosed in an embodiment of this utility model.

[0019] In the diagram: 1. Chassis; 2. Feed hopper; 3. Crushing disc; 4. Protective cover; 5. Second motor; 6. Opening; 7. Baffle; 8. Support frame; 9. Filter disc; 10. First motor; 11. Discharge port; 12. Rotating shaft; 13. Gear; 14. Connecting block; 15. Spring; 16. Optical shaft; 17. Eccentric wheel; 18. Tie rod; 19. Limiting groove. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1 - Figure 4 This utility model provides a technical solution: a plastic scrap crushing and recycling device, including a casing 1, a feed hopper 2 connected to the top surface of the casing 1, a crushing component installed inside the casing 1, a support frame 8 installed below the crushing component inside the casing 1, a filter disc 9 sliding inside the support frame 8, four sets of connecting blocks 14 installed above the support frame 8 inside the casing 1, each set of connecting blocks 14 connected to the support frame 8 by a spring 15, and an optical shaft 16 rotatably connected below the support frame 8 inside the casing 1. A pair of eccentric wheels 17 are installed on the outer side of the optical shaft 16, and the pair of eccentric wheels 17 press against the bottom surface of the support frame 8. A first motor 10 is installed on the outside of the housing 1. The output end of the first motor 10 is connected to the optical shaft 16. A discharge port 11 is opened on the side of the housing 1 below the optical shaft 16. Plastic scraps enter the housing 1 from the feed hopper 2, are crushed by the crusher and fall onto the filter plate 9. The first motor 10 drives the optical shaft 16 and the eccentric wheel 17 to rotate. The eccentric wheel 17 presses the bottom surface of the support frame 8. Under the elastic force of the spring 15, the support frame 8 drives the filter plate 9 to vibrate up and down. Particles that meet the particle size requirements pass through the sieve holes of the filter plate 9 and fall into the collection frame placed through the discharge port 11. Large pieces that do not pass through remain on the filter plate 9 for further processing.

[0022] As an embodiment of this utility model, the crushing component further includes a pair of rotating shafts 12 rotatably mounted inside the housing 1. Several crushing discs 3 are mounted on the outer side of each rotating shaft 12. One end of each pair of rotating shafts 12 passes through the housing 1 and is coaxially connected to a gear 13. The pair of gears 13 mesh with each other. A protective cover 4 is installed on the outer side of the housing 1. The pair of gears 13 are located inside the protective cover 4. A second motor 5 is installed on the side of the protective cover 4. The output end of the second motor 5 is connected to one of the rotating shafts 12. The second motor 5 drives one of the rotating shafts 12 to rotate. Through the meshing gears 13, the other rotating shaft 12 is driven to rotate synchronously in the opposite direction. The crushing discs 3 on the rotating shaft 12 rotate with the rotating shaft 12, shearing and impacting the incoming plastic scraps, crushing them into smaller particles.

[0023] As an embodiment of this utility model, the support frame 8 is U-shaped, and a limiting groove 19 is provided on the inner wall of the support frame 8. The edge of the filter disc 9 slides in the limiting groove 19. An opening 6 is provided on the side of the housing 1. A baffle 7 is hinged inside the opening 6. The filter disc 9 slides in the opening 6. The edge of the filter disc 9 is embedded in the limiting groove 19 and can slide along the limiting groove 19 to realize the installation and removal of the filter disc 9. By opening the baffle 7, the filter disc 9 can be slid out of the support frame 8 through the opening 6. After cleaning, it can be slid back to its original position. The baffle 7 can be closed to continue use.

[0024] As an embodiment of this utility model, the axis of the optical axis 16 and the axis of the support frame 8 are on the same vertical plane perpendicular to the bottom surface of the housing 1. The optical axis 16 and the axis of the support frame 8 are on the same vertical plane. When the eccentric wheel 17 rotates, the pressing point on the bottom surface of the support frame 8 is located at the center of the support frame 8 and is symmetrically distributed, so that the force on each part of the support frame 8 is balanced and the vibration is more stable.

[0025] As an embodiment of this utility model, the pair of gears 13 are of the same specification. When the gears 13 of the same specification mesh and drive, the two rotating shafts 12 rotate at the same speed but in opposite directions, driving the crushing disc 3 to rotate synchronously in the opposite direction, so as to crush the scrap material evenly.

[0026] As an embodiment of this utility model, the top surface of the filter disc 9 is further provided with a groove, and a pull rod 18 is installed in the groove. When the filter disc 9 needs to be removed, the operator holds the pull rod 18 and pulls it along the direction of the limiting groove 19 to remove the filter disc 9 from the opening 6. After cleaning, it is pushed back to its original position by the pull rod 18.

[0027] As an embodiment of this utility model, further, a plurality of magnets are embedded in the limiting groove 19, and a plurality of iron pieces are embedded on the side of the filter disc 9. The magnets attract the iron pieces. After the filter disc 9 is installed in place, the magnets in the limiting groove 19 and the iron pieces on the side of the filter disc 9 attract each other and generate a fixing force, which firmly fixes the filter disc 9 in the support frame 8. When taking it out, a certain pulling force is applied to overcome the attraction force.

[0028] It should be noted that all standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a control cabinet. The control circuit can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Furthermore, since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

Claims

1. A plastic scrap crushing and recycling device, characterized in that, The device includes a casing (1), the top surface of which is connected to a feed hopper (2). A crushing component is installed inside the casing (1). A support frame (8) is installed below the crushing component inside the casing (1). A filter disc (9) slides inside the support frame (8). Four sets of connecting blocks (14) are installed above the support frame (8) inside the casing (1). Springs (15) connect the four sets of connecting blocks (14) to the support frame (8). Inside the housing (1), an optical shaft (16) is rotatably connected below the support frame (8). A pair of eccentric wheels (17) are installed on the outside of the optical shaft (16). The pair of eccentric wheels (17) press against the bottom surface of the support frame (8). A first motor (10) is installed on the outside of the housing (1). The output end of the first motor (10) is connected to the optical shaft (16) in a transmission. A discharge port (11) is opened on the side of the housing (1) below the optical shaft (16).

2. The plastic scrap crushing and recycling device according to claim 1, characterized in that, The crushing component includes a pair of rotating shafts (12) rotatably mounted inside the housing (1). Several crushing discs (3) are mounted on the outer side of each rotating shaft (12). One end of each pair of rotating shafts (12) passes through the housing (1) and is coaxially connected to a gear (13). The pair of gears (13) are meshed together. A protective cover (4) is mounted on the outer side of the housing (1). The pair of gears (13) are located inside the protective cover (4). A second motor (5) is mounted on the side of the protective cover (4). The output end of the second motor (5) is connected to one of the rotating shafts (12) in a transmission connection.

3. The plastic scrap crushing and recycling device according to claim 1, characterized in that, The support frame (8) is U-shaped, and a limiting groove (19) is provided on the inner wall of the support frame (8). The edge of the filter disc (9) slides in the limiting groove (19). An opening (6) is provided on the side of the chassis (1). A baffle (7) is hinged inside the opening (6). The filter disc (9) slides in the opening (6).

4. The plastic scrap crushing and recycling device according to claim 1, characterized in that, The axis of the optical axis (16) and the axis of the support frame (8) are on the same vertical plane perpendicular to the bottom surface of the chassis (1).

5. A plastic scrap crushing and recycling device according to claim 2, characterized in that, The specifications of the pair of gears (13) are consistent.

6. The plastic scrap crushing and recycling device according to claim 3, characterized in that, The top surface of the filter disc (9) is provided with a groove, and a pull rod (18) is installed in the groove.

7. The plastic scrap crushing and recycling device according to claim 3, characterized in that, The limiting groove (19) is embedded with several magnets, and the side of the filter disc (9) is embedded with several iron pieces, which are attracted by the magnets.

Images