A shredding apparatus for polyethylene processing

Abstract

This utility model relates to the field of polyethylene processing and discloses a crushing device for polyethylene processing, including a support frame, a crushing tank fixedly connected to the upper end of the support frame, a fixed cover slidably inserted into the upper end of the crushing tank, a feeding cylinder at the upper end of the fixed cover, a crushing mesh cylinder fixedly connected to the lower end of the fixed cover, and two correspondingly arranged oscillating chambers fixedly connected to the upper end of the crushing tank. A rotating shaft is rotatably connected inside the oscillating chamber, an eccentric cam is fixedly connected to one side of the rotating shaft, and a first motor driving the rotating shaft is fixedly connected outside the oscillating chamber. An oscillation spring is provided between the fixed cover and the crushing tank. A lifting bracket is provided on the fixed cover, and a second motor is fixedly connected to the lifting bracket. A crushing shaft extending into the crushing mesh cylinder is provided at the output end of the second motor, and crushing blades are fixedly connected to the outer wall of the crushing shaft. Compared with the prior art, the advantages of this utility model are that it can fully crush polyethylene raw materials and achieve a higher crushing effect.

Description

Technical Field

[0001] This utility model relates to the field of polyethylene processing technology, specifically to a crushing device for polyethylene processing. Background Technology

[0002] Polyethylene is a thermoplastic resin obtained by polymerizing ethylene monomers. Industrially, it also includes copolymers of ethylene with small amounts of α-olefins. Polyethylene is odorless, non-toxic, has a waxy feel, and possesses excellent low-temperature resistance.

[0003] Polyethylene requires raw material crushing during processing, but existing crushing devices only crush the raw material through the high-speed rotation of the crushing blades. The crushing blades only rotate, resulting in low crushing efficiency. After crushing, the crushed raw material particles are prone to incomplete crushing, which greatly affects the crushing effect. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to overcome the above-mentioned technical difficulties and provide a crushing device for polyethylene processing, which can fully crush polyethylene raw materials and achieve a higher crushing effect.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a crushing device for polyethylene processing, including a support frame, a crushing tank fixedly connected to the upper end of the support frame, a fixed cover slidably inserted into the upper end of the crushing tank, a feeding cylinder provided at the upper end of the fixed cover, a crushing mesh cylinder fixedly connected to the lower end of the fixed cover, and oscillating chambers arranged on both sides fixedly connected to the upper end of the crushing tank. A rotating shaft is rotatably connected inside the oscillating chamber, an eccentric cam is fixedly connected to one side of the rotating shaft, a first motor for driving the rotating shaft to rotate is fixedly connected outside the oscillating chamber, and an oscillation spring is provided between the fixed cover and the crushing tank; a lifting bracket is provided on the fixed cover, a second motor is fixedly connected to the lifting bracket, and a crushing shaft extending into the crushing mesh cylinder is provided at the output end of the second motor, with crushing blades fixedly connected to the outer wall of the crushing shaft.

[0006] As an improvement, the lifting bracket includes lifting sleeves fixedly connected to the upper ends of the fixed cover and correspondingly arranged on both sides. A lifting rod is slidably inserted into the upper end of the lifting sleeve. An adjustment frame is fixedly connected to the upper end of the lifting rods on both sides. A fixed frame is fixedly connected to the upper end of the fixed cover. A rocker arm is rotatably connected to one side of the fixed frame. An adjustment block is slidably connected to one end of the rocker arm and is rotatably connected to the adjustment block in the adjustment frame. A third motor that drives the rocker arm to rotate is fixedly connected to the fixed frame.

[0007] As an improvement, reset sleeves are fixedly connected to both sides of the crushing tank, and reset slide rods are slidably inserted into the upper end of the reset sleeves. The oscillating spring is fixedly connected between the inner wall of the bottom surface of the reset sleeve and the reset slide rods, and the reset slide rods on both sides are respectively fixedly connected to the outer walls of the two sides of the fixed cover.

[0008] As an improvement, a discharge hopper is fixedly connected to the lower end of the crushing tank, and a discharge pump is fixedly connected to the bottom surface of the discharge hopper.

[0009] As an improvement, a limiting block is fixedly connected to one side of the reset slide rod, and a limiting groove that cooperates with the limiting block is provided on the side wall of the reset sleeve.

[0010] The advantages of this invention compared to the prior art are as follows: the lifting bracket drives the crushing shaft and crushing blades to slide up and down repeatedly during the crushing process, continuously adjusting the crushing position to make the crushing more efficient. Under the rotation of the eccentric cam, in conjunction with the oscillating spring, the crushing screen cylinder shakes up and down repeatedly, allowing qualified crushed particles to be discharged, preventing incomplete crushing of raw materials, and achieving full crushing of polyethylene raw materials with a higher crushing effect. Attached Figure Description

[0011] Figure 1 This is an exploded view of a crushing device for polyethylene processing according to this utility model.

[0012] Figure 2 This is a schematic diagram of a crushing device for polyethylene processing according to this utility model.

[0013] Figure 3 This is a cross-sectional view of a crushing device for polyethylene processing according to this utility model.

[0014] As shown in the figure: 1. Support frame; 2. Crushing tank; 3. Fixed cover; 4. Feeding cylinder; 5. Crushing screen cylinder; 6. Vibrating chamber; 7. Rotating shaft; 8. Eccentric cam; 9. First motor; 10. Crushing shaft; 11. Crushing blade; 12. Second motor; 13. Adjusting frame; 14. Rocker arm; 15. Third motor; 16. Adjusting block; 17. Lifting rod; 18. Lifting sleeve; 19. Fixed frame; 20. Reset slide rod; 21. Vibrating spring; 22. Limiting block; 23. Reset sleeve; 24. Limiting groove; 25. Discharge hopper; 26. Discharge pump. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0016] like Figures 1 to 3 As shown, a crushing device for polyethylene processing includes a support frame 1. A crushing tank 2 is fixedly connected to the upper end of the support frame 1. A discharge hopper 25 is fixedly connected to the lower end of the crushing tank 2. A discharge pump 26 is fixedly connected to the bottom surface of the discharge hopper 25. A fixed cover 3 is slidably inserted into the upper end of the crushing tank 2. A feeding cylinder 4 is provided at the upper end of the fixed cover 3. A crushing mesh cylinder 5 is fixedly connected to the lower end of the fixed cover 3. Vibration chambers 6 are fixedly connected to the upper end of the crushing tank 2 on both sides. A rotating shaft 7 is rotatably connected inside the vibration chamber 6. An eccentric cam 8 is fixedly connected to one side of the rotating shaft 7. A first motor that drives the rotating shaft 7 to rotate is fixedly connected to the outside of the vibration chamber 6. 9. An oscillating spring 21 is provided between the fixed cover 3 and the crushing tank 2. The crushing tank 2 is fixedly connected to both sides of the reset sleeve 23. A reset slide rod 20 is slidably inserted into the upper end of the reset sleeve 23. The oscillating spring 21 is fixedly connected between the inner wall of the bottom surface of the reset sleeve 23 and the reset slide rod 20. The reset slide rods 20 on both sides are respectively fixedly connected to the outer walls of both sides of the fixed cover 3. A limit block 22 is fixedly connected to one side of the reset slide rod 20. The side wall of the reset sleeve 23 is provided with a limit groove 24 that cooperates with the limit block. The limit block 22 and the limit groove 24 prevent the reset slide rod 20 from falling out of the reset sleeve 23 during oscillation.

[0017] The fixed cover 3 is provided with a lifting bracket, which includes lifting sleeves 18 fixedly connected to the upper two sides of the fixed cover 3. A lifting rod 17 is slidably inserted into the upper end of the lifting sleeve 18. An adjustment frame 13 is fixedly connected to the upper end of the lifting rods 17 on both sides. A fixed frame 19 is fixedly connected to the upper end of the fixed cover 3. A rocker arm 14 is rotatably connected to one side of the fixed frame 19. An adjustment block 16 is slidably connected to one end of the rocker arm 14 in the adjustment frame 13. A third motor 15 that drives the rocker arm 14 to rotate is fixedly connected to the fixed frame 19. A second motor 12 is fixedly connected to the lower end of the adjustment frame 13. A crushing shaft 10 extending into the crushing mesh cylinder 5 is provided at the output end of the second motor 12. A crushing blade 11 is fixedly connected to the outer wall of the crushing shaft 10.

[0018] In practical use, the polyethylene raw material to be crushed is added into the crushing screen cylinder 5 through the feeding cylinder 4. The second motor 12 is started to drive the crushing shaft 10 to rotate. The crushing shaft 10 drives the crushing blades 11 to rotate and crush the raw material in the crushing screen cylinder 5. At the same time, the third motor 15 is started to drive the rocker arm 14 to rotate. The rocker arm 14 drives the adjusting block 16 to slide back and forth along the inner wall of the adjusting frame 13. With the cooperation of the lifting rod 17 and the lifting sleeve 18, the adjusting frame 13 drives the crushing shaft 10 to move up and down. The crushing shaft 10 drives the crushing blades to swing up and down during the rotation, so that the crushing blades 11 can make more sufficient contact with the raw material. At the same time, the first motor 9 is started to drive the rotating shaft 7 to rotate. The rotating shaft 7 drives the eccentric cam 8 to rotate cyclically. During the rotation, the eccentric cam 8 continuously changes the center of the fixed cover cylinder 3. Under the elastic force of the oscillating spring 21, the fixed cover cylinder 3 drives the crushing screen cylinder 5 to oscillate up and down, so that the crushed raw material is discharged from the crushing screen cylinder 5 and falls into the discharge hopper 25. The discharge pump 26 is started to discharge the raw material.

[0019] All standard parts used in this utility model can be purchased from the market, and irregular parts 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, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0021] 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.

[0022] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A crushing device for polyethylene processing, comprising a support frame (1), wherein a crushing tank (2) is fixedly connected to the upper end of the support frame (1), characterized in that: A fixed cover (3) is slidably inserted into the upper end of the crushing tank (2). A feeding cylinder (4) is provided at the upper end of the fixed cover (3). A crushing mesh cylinder (5) is fixedly connected to the lower end of the fixed cover (3). A vibrating chamber (6) is fixedly connected to the upper end of the crushing tank (2) and arranged on both sides. A rotating shaft (7) is rotatably connected inside the vibrating chamber (6). An eccentric cam (8) is fixedly connected to one side of the rotating shaft (7). A first motor (9) that drives the rotating shaft (7) to rotate is fixedly connected to the outside of the vibrating chamber (6). An oscillating spring (21) is provided between the fixed cover (3) and the crushing tank (2). The fixed cover (3) is provided with a lifting bracket, and a second motor (12) is fixedly connected to the lifting bracket. The output end of the second motor (12) is provided with a crushing shaft (10) extending into the crushing mesh cylinder (5). A crushing blade (11) is fixedly connected to the outer wall of the crushing shaft (10).

2. The crushing equipment for polyethylene processing according to claim 1, characterized in that: The lifting support includes lifting sleeves (18) fixedly connected to the upper sides of the fixed cover (3) and correspondingly arranged. A lifting rod (17) is slidably inserted into the upper end of the lifting sleeve (18). An adjustment frame (13) is fixedly connected to the upper end of the lifting rod (17) on both sides. A fixed frame (19) is fixedly connected to the upper end of the fixed cover (3). A rocker arm (14) is rotatably connected to one side of the fixed frame (19). An adjustment block (16) is slidably connected to one end of the rocker arm (14) and is rotatably connected to one end of the rocker arm (14) in the adjustment frame (13). A third motor (15) for driving the rocker arm (14) to rotate is fixedly connected to the fixed frame (19).

3. The crushing equipment for polyethylene processing according to claim 1, characterized in that: The crushing tank (2) is fixedly connected to two sides of a reset sleeve (23). A reset slide rod (20) is slidably inserted into the upper end of the reset sleeve (23). The oscillating spring (21) is fixedly connected between the inner wall of the bottom surface of the reset sleeve (23) and the reset slide rod (20). The reset slide rods (20) on both sides are respectively fixedly connected to the outer walls of the two sides of the fixed cover (3).

4. The crushing equipment for polyethylene processing according to claim 1, characterized in that: The lower end of the crushing tank (2) is fixedly connected to a discharge hopper (25), and the bottom surface of the discharge hopper (25) is fixedly connected to a discharge pump (26).

5. A crushing device for polyethylene processing according to claim 3, characterized in that: The reset slide (20) is fixedly connected to a limiting block (22) on one side, and the side wall of the reset sleeve (23) is provided with a limiting groove (24) that cooperates with the limiting block (22).

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