Material crushing machine for plastic production

Abstract

The utility model belongs to the technical field of plastic processing, and discloses a crusher for plastic production. Comprising a crushing table, a pair of crushing rollers are rotationally connected to the interior of the crushing table, a reciprocating mechanism is arranged on the periphery of the crushing table and comprises a pair of first fixing plates, the first fixing plates are fixedly connected to the two sides of the crushing table respectively, and a positive and negative tooth lead screw is rotationally connected between the first fixing plates. According to the device, through the structural design of a linkage mechanism, a positive and negative tooth lead screw and a discharging box, rotation of the positive and negative tooth lead screw is innovatively achieved through the linkage mechanism driven when a smashing roller rotates, then a sliding block in a threaded plate is driven to reciprocate, and the discharging box is driven to move synchronously; by means of the design, plastic particles can be evenly thrown to different positions of the smashing roller, the problem that local pressure of the smashing roller is too large is effectively solved, the service life of the device is remarkably prolonged, and the smashing efficiency of the device is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of plastic processing technology, and more specifically, to a plastic crusher for plastic production. Background Technology

[0002] Plastics are materials made primarily of polymers, with added plasticizers, fillers, and other auxiliary components. Under certain conditions, they can be molded into a specific shape and retain that shape at room temperature. Their resistance to deformation is moderate, falling between that of fibers and rubber. In the plastics production industry, crushers play a crucial role as key auxiliary equipment, capable of pulverizing granular plastics into powder.

[0003] Most existing crushers consist of a crushing table and crushing rollers. Their working principle is as follows: First, the plastic granules to be crushed are fed into the top of the crushing table. The plastic granules fall under the action of gravity and are crushed by a pair of crushing rollers during the fall, thus achieving a powdery state. Finally, the processed plastic falls out of the crushing table, thus completing the working process of the crusher.

[0004] However, existing granular plastics are not convenient to adjust their feeding position when they are fed into the crushing table. This results in a limited feeding position of the granular plastics each time they are fed into the crushing table, which in turn causes greater pressure on the crushing rollers and affects the service life of the device. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, this utility model proposes a crusher for plastic production.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a crusher for plastic production, comprising a crushing table, wherein a pair of crushing rollers are rotatably connected inside the crushing table, and a reciprocating mechanism is provided around the crushing table.

[0007] The reciprocating mechanism includes a pair of fixed plates, which are respectively fixed to both sides of the crushing table. A positive and negative threaded rod is rotatably connected between the pair of fixed plates. One end of the positive and negative threaded rod passes through the fixed plate. A threaded plate is provided on the outer side of the positive and negative threaded rod. A slider is fixed inside the threaded plate. The slider is threadedly connected to the outer side of the positive and negative threaded rod. A feed box is fixed to the outer side of the threaded plate. A connecting rod is fixed to one end of the crushing roller. The connecting rod passes through the crushing table and extends to the outer side of the crushing table. A linkage mechanism for driving the positive and negative threaded rod to rotate is provided around the connecting rod.

[0008] Furthermore, the linkage mechanism includes a first sprocket, a second sprocket, and a chain. The first sprocket is fixedly connected to the outer side of the connecting rod, the second sprocket is fixedly connected to the outer side of the positive and negative threaded screw, and the chain meshes with the outer sides of the first and second sprockets.

[0009] Furthermore, a fixed box is provided at the top of the crushing table, and a second fixed plate is fixedly connected to the outside of the fixed box. The end of the second fixed plate away from the fixed box is fixedly connected to the outside of the crushing table. A sliding groove is provided at the bottom of the fixed box, and a connecting pipe is slidably connected inside the sliding groove. The end of the connecting pipe away from the fixed box is fixedly connected to the top of the feeding box.

[0010] Furthermore, a baffle is fixed to the outside of the connecting pipe, and both ends of the baffle penetrate the fixing box.

[0011] Furthermore, a limiting rod is fixed between the pair of fixed plates, and the limiting rod passes through the threaded plate.

[0012] The technical effects and advantages of this utility model of a plastic crusher for production:

[0013] (1) Through the structural design of the linkage mechanism, the positive and negative threaded rods and the feeding box, this utility model realizes the linkage mechanism driven by the rotation of the crushing roller. It innovatively realizes the rotation of the positive and negative threaded rods, thereby driving the slider inside the threaded plate to move back and forth, and driving the feeding box to move synchronously. This design enables the granular plastic to be evenly fed to different positions of the crushing roller, effectively solving the problem of excessive local pressure on the crushing roller, and significantly improving the service life and crushing efficiency of the device.

[0014] (2) Through the structural design of the fixed box and the connecting pipe, this utility model realizes that by moving the feeding box, the connecting pipe moves back and forth in the groove at the bottom of the fixed box, which innovatively realizes the dynamic feeding of granular plastic at different positions in the fixed box. This design not only ensures that the granular plastic can fall into the feeding box evenly and continuously, and be thrown to different positions of the crushing roller. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a partial structural diagram of the present invention.

[0017] Figure 3 This is a schematic diagram of the threaded plate and feeding box structure in this utility model.

[0018] Figure 4 This is a cross-sectional schematic diagram of the fixing box in this utility model.

[0019] In the picture:

[0020] 1. Crushing table; 2. Crushing roller; 3. Fixing plate one; 4. Positive and negative threaded rods; 5. Threaded plate; 6. Feed box; 7. Connecting rod; 8. First sprocket; 9. Second sprocket; 10. Fixing box; 11. Fixing plate two; 12. Slide groove; 13. Connecting pipe; 14. Baffle; 15. Limiting rod; 16. Chain. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0022] Please see Figure 1 - Figure 3 As shown, a plastic crusher for production includes a crushing table 1, a pair of crushing rollers 2 rotatably connected inside the crushing table 1, and a reciprocating mechanism arranged around the periphery of the crushing table 1.

[0023] The reciprocating mechanism includes a pair of fixed plates 3, which are respectively fixed to both sides of the crushing table 1. A positive and negative threaded rod 4 is rotatably connected between the pair of fixed plates 3. One end of the positive and negative threaded rod 4 passes through the fixed plate 3. A threaded plate 5 is provided on the outer side of the positive and negative threaded rod 4. A slider is fixed inside the threaded plate 5. The slider is threadedly connected to the outer side of the positive and negative threaded rod 4. A feed box 6 is fixed to the outer side of the threaded plate 5. A connecting rod 7 is fixed to one end of the crushing roller 2. The connecting rod 7 passes through the crushing table 1 and extends to the outer side of the crushing table 1. A linkage mechanism for driving the positive and negative threaded rod 4 to rotate is provided around the connecting rod 7.

[0024] In existing systems, it is inconvenient to adjust the feeding position of granular plastic when it is fed into the crushing table 1. This results in a limited feeding position of the granular plastic each time it is fed into the crushing table 1, which in turn causes the crushing roller 2 to be under high pressure and affects the service life of the device. In this invention, the granular plastic is fed into the feeding box 6. When the crushing roller 2 rotates, it drives the linkage mechanism through the connecting rod 7. The operation of the linkage mechanism drives the positive and negative threaded rods 4 to rotate. The rotation of the positive and negative threaded rods 4 drives the slider inside the threaded plate 5 to move back and forth. The slider then drives the feeding box 6 to move back and forth through the threaded plate 5. When granular plastic is fed into the feeding box 6, the feeding box 6 will move back and forth to feed the granular plastic to different positions of the crushing roller 2, thereby solving the problem of excessive local pressure on the crushing roller 2.

[0025] like Figure 2 and Figure 3 As shown, the linkage mechanism includes a first sprocket 8, a second sprocket 9, and a chain 16. The first sprocket 8 is fixedly connected to the outer side of the connecting rod 7, the second sprocket 9 is fixedly connected to the outer side of the positive and negative threaded rod 4, and the chain 16 meshes with the outer sides of the first sprocket 8 and the second sprocket 9.

[0026] When the connecting rod 7 rotates, it will drive the first sprocket 8 to rotate, and the rotation of the first sprocket 8 will drive the second sprocket 9 to rotate through the chain 16, thereby providing a power source for the positive and negative thread screw 4.

[0027] like Figure 4 As shown, a fixed box 10 is provided at the top of the crushing table 1, and a fixed plate 11 is fixedly connected to the outside of the fixed box 10. The end of the fixed plate 11 away from the fixed box 10 is fixedly connected to the outside of the crushing table 1. A sliding groove 12 is provided at the bottom of the fixed box 10. A connecting pipe 13 is slidably connected inside the sliding groove 12. The end of the connecting pipe 13 away from the fixed box 10 is fixedly connected to the top of the feeding box 6.

[0028] The granular plastic is poured into the interior of the fixed box 10. Whenever the feeding box 6 moves, the feeding box 6 will drive the connecting pipe 13 to move back and forth along the slide groove 12 at the bottom of the fixed box 10. As the connecting pipe 13 moves, the granular plastic at different positions inside the fixed box 10 will fall into the interior of the feeding box 6 under the action of gravity, and then be fed into different positions of the crushing roller 2 by the feeding box 6.

[0029] like Figure 4 As shown, a baffle 14 is fixed to the outside of the connecting pipe 13, and both ends of the baffle 14 penetrate the fixing box 10.

[0030] The baffle 14 ensures that no plastic particles fall along the chute 12 when it is open. The baffle 14 can seal the chute 12, thus ensuring that the plastic particles inside the fixed box 10 can only be fed into the crushing table 1 through the connecting pipe 13.

[0031] like Figure 3 and Figure 4 As shown, a limiting rod 15 is fixed between a pair of fixed plates 3, and the limiting rod 15 passes through the threaded plate 5.

[0032] The setting of the limiting rod 15 plays a stabilizing role in the movement of the threaded plate 5, so that the threaded plate 5 moves smoothly along the outside of the limiting rod 15, and avoids the threaded plate 5 from shaking.

[0033] Working principle: When granular plastic is fed into the feeding box 6, the crushing roller 2 rotates, which drives the first sprocket 8 to rotate through the connecting rod 7. The rotation of the first sprocket 8 drives the second sprocket 9 to rotate through the chain 16, thus providing power to the positive and negative threaded screw 4. The rotation of the positive and negative threaded screw 4 drives the slider inside the threaded plate 5 to move back and forth. At this time, the slider drives the feeding box 6 to move back and forth through the threaded plate 5. When granular plastic is fed into the feeding box 6, the feeding box 6 will move back and forth to throw the granular plastic to different positions of the crushing roller 2, thereby solving the problem of excessive local pressure on the crushing roller 2.

[0034] The granular plastic is poured into the interior of the fixed box 10. Whenever the feeding box 6 moves, the feeding box 6 will drive the connecting pipe 13 to move back and forth along the sliding groove 12 at the bottom of the fixed box 10. As the connecting pipe 13 moves, the granular plastic at different positions inside the fixed box 10 will fall into the interior of the feeding box 6 under the action of gravity, and then be fed into different positions of the crushing roller 2 by the feeding box 6.

[0035] The baffle 14 ensures that no plastic particles fall along the chute 12 when it is open. The baffle 14 can seal the chute 12, thus ensuring that the plastic particles inside the fixed box 10 can only be fed into the crushing table 1 through the connecting pipe 13.

[0036] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A plastic crusher for plastic production, comprising a crushing table (1), wherein a pair of crushing rollers (2) are rotatably connected inside the crushing table (1), characterized in that, A reciprocating mechanism is provided around the pulverizing table (1): The reciprocating mechanism includes a pair of fixed plates (3), which are respectively fixed on both sides of the crushing table (1). A positive and negative threaded rod (4) is rotatably connected between the pair of fixed plates (3). One end of the positive and negative threaded rod (4) passes through the fixed plate (3). A threaded plate (5) is provided on the outside of the positive and negative threaded rod (4). A slider is fixed inside the threaded plate (5). The slider is threadedly connected to the outside of the positive and negative threaded rod (4). A feed box (6) is fixed on the outside of the threaded plate (5). A connecting rod (7) is fixed on one end of the crushing roller (2). The connecting rod (7) passes through the crushing table (1) and extends to the outside of the crushing table (1). A linkage mechanism for driving the positive and negative threaded rod (4) to rotate is provided around the connecting rod (7).

2. The plastic crusher for plastic production according to claim 1, characterized in that, The linkage mechanism includes a first sprocket (8), a second sprocket (9), and a chain (16). The first sprocket (8) is fixedly connected to the outside of the connecting rod (7), the second sprocket (9) is fixedly connected to the outside of the positive and negative threaded rod (4), and the chain (16) meshes with the outside of the first sprocket (8) and the second sprocket (9).

3. The plastic crusher for plastic production according to claim 2, characterized in that, The top of the crushing table (1) is provided with a fixed box (10), and a fixed plate (11) is fixedly connected to the outside of the fixed box (10). The end of the fixed plate (11) away from the fixed box (10) is fixedly connected to the outside of the crushing table (1). A sliding groove (12) is provided at the bottom of the fixed box (10). A connecting pipe (13) is slidably connected inside the sliding groove (12). The end of the connecting pipe (13) away from the fixed box (10) is fixedly connected to the top of the feeding box (6).

4. The plastic crusher for plastic production according to claim 3, characterized in that, A baffle (14) is fixed to the outside of the connecting pipe (13), and both ends of the baffle (14) penetrate the fixing box (10).

5. The plastic crusher for plastic production according to claim 4, characterized in that, A limiting rod (15) is fixed between a pair of fixed plates (3), and the limiting rod (15) passes through the threaded plate (5).

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