Recycling and smashing device for defective plastic pipes

Abstract

The utility model provides a recycling and smashing device for defective plastic pipes, and relates to the technical field of smashing and recycling. The recycling and crushing device for the defective plastic pipes comprises a box body, two crushing rollers are arranged in the box body, a screening box is arranged at the bottoms of the two crushing rollers, two conveying wheels are rotationally installed in the box body, a conveying belt is connected to the outer sides of the two conveying wheels in a meshed mode, and the two conveying wheels are in transmission connection through the conveying belt; a plurality of collecting plates are hinged to the outer sides of the conveying belts, and second limiting blocks matched with the movement tracks of the conveying belts are fixedly connected into the box body. According to the recycling and crushing device for the defective plastic pipes, when the screening box moves back and forth, crushed plastic fragments in the screening box can be screened, unqualified fragments are shaken into a second limiting block, a collecting plate can conveniently collect the fragments, the fragments are conveyed to the position above a crushing roller to be subjected to secondary crushing, unqualified plastic is directly crushed, and the recycling efficiency is improved; and manpower is saved.

Description

Technical Field

[0001] The utility model relates to a recycling and crushing device, in particular to a recycling and crushing device for defective plastic pipes, belonging to the technical field of crushing and recycling. Background Art

[0002] With the development of industry, the application of plastic pipes has spread to all fields of industry, agriculture and daily life. The demand for plastic pipes is increasing. In the production process of plastic pipes, waste plastic pipes whose size or shape does not meet the requirements will be generated. When cutting plastic pipes, substandard plastic pipes will also be generated. In order to reduce resource waste, defective plastic pipes are usually recycled.

[0003] For the treatment of defective plastic pipes, a crusher is usually used to crush them into blocks for recycling. However, some defective plastic pipes have thick walls, so the existing crushing device cannot achieve a good crushing effect. As a result, the final crushed plastic blocks are too large to meet the reproduction requirements and need to be crushed again.

[0004] When crushing plastic pipes, the plastic pipes with poor crushing effect need to be crushed again, which brings great inconvenience to employees. At the same time, the secondary crushing greatly increases the recycling time of defective plastic pipes and affects the recycling efficiency. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The purpose of the utility model is to provide a device for recycling and crushing defective plastic pipes in order to solve the above problems, so as to solve the problem in the prior art that incompletely crushed plastic pipes need to be crushed again.

[0007] (II) Technical solution

[0008] The utility model is implemented through the following technical scheme: a recycling and crushing device for defective plastic pipes, including a box body, two crushing rollers are arranged inside the box body, a screening box is arranged at the bottom of the two crushing rollers, two conveying wheels are rotatably installed inside the box body, the outer sides of the two conveying wheels are meshed and connected with conveyor belts, the two conveying wheels are connected through conveyor belt transmission, a plurality of collecting plates are hinged on the outer sides of the conveyor belts, and a second limit block adapted to the motion trajectories of the plurality of conveyor belts is fixedly connected inside the box body.

[0009] Preferably, limiting rods are fixedly connected to both sides of the plurality of collecting plates. Second sliding grooves adapted to the plurality of limiting rods are formed in both inner walls of the box body. The two second sliding grooves are slidably connected to the plurality of limiting rods. First sliding grooves, third sliding grooves and fourth sliding grooves are formed in both inner walls of the box body. The two first sliding grooves, third sliding grooves and fourth sliding grooves are respectively communicated with the two fourth sliding grooves. The limiting rods move in the sliding grooves, so that the angle between the collecting plates and the conveyor belt changes when the collecting plates move to different sliding grooves, effectively transporting the collected plastic fragments above the crushing rollers for secondary crushing.

[0010] Preferably, two diversion blocks are fixedly connected to the inside of the box body. A limiting plate is slidably connected to the rear side of the bottom of the screening box. The bottom of the limiting plate is fixedly connected to the diversion blocks. The top of the diversion block far from the limiting plate in the two diversion blocks is slidably connected to the front side of the bottom of the screening box.

[0011] Preferably, funnels are arranged at the bottoms of the two crushing rollers. The outer sides of the two crushing rollers are in close contact with the funnels. The outer sides of the funnels are fixedly connected to the box body. The bottoms of the funnels are in close contact with the screening box. The front sides of the funnels are in close contact with the plurality of collecting plates.

[0012] Preferably, a fixed rod is fixedly connected to one side of the screening box. An annular limiting block is fixedly connected to one side of the fixed rod. A first limiting block is fixedly connected to one side of the box body. A first transmission rod is rotatably connected to the inside of the first limiting block. A fixed block is fixedly connected to the top end of the first transmission rod. A third limiting block is fixedly connected to one side of the top of the fixed block. The third limiting block penetrates through the annular limiting block and is slidably connected to the annular limiting block. When the screening box moves back and forth, the crushed plastic fragments inside the screening box can be screened. For unqualified fragments, they are collected, and the unqualified fragments are shaken into the second limiting block, so that the collecting plates collect the fragments centrally, and the fragments are sent back above the crushing rollers for crushing again. The unqualified plastics are directly crushed, increasing the recycling efficiency and saving manpower.

[0013] Preferably, a motor is fixedly connected to one side of the box body. A second transmission rod is fixedly connected to the output end of the motor. A third transmission rod is fixedly connected to one side of one of the conveyor wheels. The third transmission rod penetrates through the box body and is rotatably connected to the box body. Second bevel gears are fixedly connected to one ends of the first transmission rod and the third transmission rod. The two second bevel gears are meshed and connected.

[0014] Preferably, first bevel gears are fixedly connected to the outer side of the second transmission rod and the bottom of the first transmission rod. The two first bevel gears are meshed and connected.

[0015] The present utility model provides a recycling and crushing device for defective plastic pipes, and the beneficial effects thereof are as follows:

[0016] 1. The recycling and crushing device for defective plastic pipes. Limiting rods are fixedly connected to both sides of multiple collecting plates. Second chutes adapted to the multiple limiting rods are provided on both inner walls of the box body. The two second chutes are slidably connected to the multiple limiting rods. First chutes, third chutes and fourth chutes are provided on both inner walls of the box body. The two first chutes, third chutes and fourth chutes are respectively communicated with the two fourth chutes. The limiting rods move in the chutes, causing the angle between the collecting plates and the conveyor belt to change when the collecting plates move to different chutes, effectively transporting the collected plastic fragments above the crushing rollers for secondary crushing.

[0017] 2. The recycling and crushing device for defective plastic pipes. A fixing rod is fixedly connected to one side of the screening box. An annular limiting block is fixedly connected to one side of the fixing rod. A first limiting block is fixedly connected to one side of the box body. A first transmission rod is rotatably connected inside the first limiting block. A fixing block is fixedly connected to the top end of the first transmission rod. A third limiting block is fixedly connected to one side of the top of the fixing block. The third limiting block penetrates through the annular limiting block and is slidably connected to the annular limiting block. When the screening box moves back and forth, it can screen the crushed plastic fragments inside the screening box, collect the unqualified fragments, shake the unqualified fragments into the second limiting block, enable the collecting plates to centrally collect the fragments, send the fragments back above the crushing rollers for crushing, directly crush the unqualified plastics, improve the recycling efficiency and save labor. Description of the Drawings

[0018] Figure 1 Schematic diagram of the internal structure of the box body of the present utility model;

[0019] Figure 2 Schematic diagram of the internal structure of the funnel of the present utility model;

[0020] Figure 3 Schematic diagram of the screening box structure of the present utility model;

[0021] Figure 4 Schematic diagram of the overall structure of the present utility model;

[0022] Figure 5 Schematic diagram of the collecting plate structure of the present utility model;

[0023] Figure 6 Schematic diagram of the chute structure of the present utility model.

[0024]

Symbol Explanation of Main Components

[0025] 1. Box body; 2. Crushing roller; 3. Hopper; 4. Screening box; 5. Limiting plate; 6. Drainage block; 7. First limiting block; 8. Second limiting block; 9. Conveyor wheel; 10. Conveyor belt; 11. Collection plate; 12. Limiting rod; 13. First chute; 14. Second chute; 15. Third chute; 16. Fourth chute; 17. Motor; 18. First bevel gear; 19. First transmission rod; 20. Fixed block; 21. Third limiting block; 22. Annular limiting block; 23. Fixed rod; 24. Second bevel gear; 25. Second transmission rod; 26. Third transmission rod. Detailed implementation manner

[0026] An embodiment of the utility model provides a recycling and crushing device for defective plastic pipes.

[0027] Please refer to Figure 1 , Figure 2 , Figure 5 , and Figure 6 , including a box body 1, two crushing rollers 2 are arranged inside the box body 1, a screening box 4 is arranged at the bottom of the two crushing rollers 2, two conveyor wheels 9 are rotatably installed inside the box body 1, a conveyor belt 10 is meshed and connected to the outside of the two conveyor wheels 9, the two conveyor wheels 9 are connected by the conveyor belt 10 in a transmission manner, a plurality of collection plates 11 are hinged to the outside of the conveyor belt 10, a second limiting block 8 adapted to the movement tracks of the plurality of conveyor belts 10 is fixedly connected inside the box body 1, limiting rods 12 are fixedly connected to both sides of the plurality of collection plates 11, second chutes 14 adapted to the plurality of limiting rods 12 are opened on both inner walls of the box body 1, the two second chutes 14 are slidably connected to the plurality of limiting rods 12, first chutes 13, third chutes 15 and fourth chutes 16 are opened on both inner walls of the box body 1, the two first chutes 13, third chutes 15 and fourth chutes 16 are respectively communicated with the two fourth chutes 16, and the limiting rods 12 move in the chutes, so that the angle between the collection plate 11 and the conveyor belt 10 changes when the collection plate 11 moves to different chutes, effectively transporting the collected plastic fragments above the crushing roller 2 for secondary crushing.

[0028] Please refer to again Figure 1 , Figure 2 , and Figure 3 , two drainage blocks 6 are fixedly connected inside the box body 1, a limiting plate 5 is slidably connected to the rear side of the bottom of the screening box 4, the bottom of the limiting plate 5 is fixedly connected to the drainage block 6, the top of the drainage block 6 far from the limiting plate 5 in the two drainage blocks 6 is slidably connected to the front side of the bottom of the screening box 4, a hopper 3 is arranged at the bottom of the two crushing rollers 2, the outside of the two crushing rollers 2 is closely attached to the hopper 3, the outside of the hopper 3 is fixedly connected to the box body 1, the bottom of the hopper 3 is closely attached to the screening box 4, and the front side of the hopper 3 is closely attached to the plurality of collection plates 11.

[0029] Please refer to againFigure 1 , Figure 2 , Figure 3 and Figure 4 , a fixed rod 23 is fixedly connected to one side of the material screening box 4, an annular limiting block 22 is fixedly connected to one side of the fixed rod 23, a first limiting block 7 is fixedly connected to one side of the box body 1, a first transmission rod 19 is rotatably connected inside the first limiting block 7, a fixed block 20 is fixedly connected to the top end of the first transmission rod 19, a third limiting block 21 is fixedly connected to one side of the top of the fixed block 20, the third limiting block 21 penetrates through the annular limiting block 22 and is slidably connected to the annular limiting block 22. When the material screening box 4 moves back and forth, the broken plastic fragments inside the material screening box 4 can be screened. For unqualified fragments, they are collected, shaken into the second limiting block 8, and the collecting plate 11 collects the fragments centrally, and the fragments are sent back above the crushing roller 2 for crushing. The unqualified plastics are directly crushed, which increases the recycling efficiency, saves manpower. A motor 17 is fixedly connected to one side of the box body 1, a second transmission rod 25 is fixedly connected to the output end of the motor 17, a third transmission rod 26 is fixedly connected to one side of one of the conveyor wheels 9, the third transmission rod 26 penetrates through the box body 1 and is rotatably connected to the box body 1, second bevel gears 24 are fixedly connected to one ends of the first transmission rod 19 and the third transmission rod 26 respectively, the two second bevel gears 24 are meshed and connected, and first bevel gears 18 are fixedly connected to the outer side of the second transmission rod 25 and the bottom of the first transmission rod 19 respectively, and the two first bevel gears 18 are meshed and connected.

[0030] When the utility model is in use: when it is necessary to recycle plastic pipes, the plastic pipes are put in from above the crushing roller 2. The driving device of the crushing roller 2 is a mature existing technology, so no more description will be made here. At this time, the crushing roller 2 rotates to crush the defective plastic pipes. The plastic pipes crushed by the crushing roller 2 fall from below the crushing roller 2, and the fragments enter the screening box 4 along the slope direction of the funnel 3. At this time, the motor 17 works to drive the second transmission rod 25 to rotate. The second transmission rod 25 drives the first bevel gear 18 to rotate. The first bevel gear 18 drives the first transmission rod 19 and the fixing block 20 at the top of the first transmission rod 19 to rotate. One side of the top of the first transmission rod 19 is fixedly connected to the third limiting block 21. The third limiting block 21 is slidably connected to the annular limiting block 22. The annular limiting block 22 is fixedly connected to the screening box 4 through the fixing rod 23. Therefore, when the third chute 15 works, it drives the screening box 4 to move back and forth. The screening box 4 screens the fragments that meet the recycling requirements above the screening box 4 into the two drainage blocks 6. The crushed fragments are intensively collected from the discharge port at the bottom of the box body 1 along the slope directions of the two drainage blocks 6. The internal screen of the screening box 4 is in the shape of a slope. When the plastic sheets that do not meet the requirements move back and forth in the screening box 4, they enter the second limiting block 8 along the slope direction of the screening box 4, which is convenient for the collecting plate 11 to intensively collect the plastic fragments, send the fragments back above the crushing roller 2 for crushing, directly crush the unqualified plastics, increase the recycling efficiency, save manpower and time, and eliminate the need for manual secondary crushing of the incompletely crushed plastic fragments.

[0031] The motor 17 operates to drive the first transmission rod 19 to rotate. The first transmission rod 19 drives two second bevel gears 24 to rotate. The second bevel gears 24 drive the third transmission rod 26 and the conveyor wheel 9 to rotate counterclockwise. The rotation of the conveyor wheel 9 drives the movement of the conveyor belt 10 sleeved outside the conveyor wheel 9. The conveyor belt 10 drives the movement of the collection plate 11 hinged outside the conveyor belt 10. Limit rods 12 are fixedly connected to both sides of multiple collection plates 11. Since the inner wall of the box body 1 is provided with a second chute 14 adapted to the limit rods 12 on both sides of the collection plate 11, the first chute 13, the second chute 14, the third chute 15 and the fourth chute 16 form a chute, and the limit rods 12 move in the chute. When the conveyor belt 10 moves, the collection plate 11 moves under the action of the conveyor belt 10 and the chute. When the collection plate 11 moves to the bottom of the first chute 13, the limit rod 12 enters the second chute 14 under the action of the slope at the bottom of the first chute 13. At this time, the conveyor belt 10 and the collection plate 11 move along the direction of the second chute 14 at a certain angle. The end of the collection plate 11 away from the conveyor belt 10 is in close contact with the second limit block 8. The collection plate 11 collects the debris screened into the second limit block 8 by the screening box 4. When the limit rod 12 moves into the third chute 15, the third chute 15 cannot limit the limit rod 12 on one side, and the collection plate 11 tilts under the action of its own weight and the weight of the plastic debris. The other side of the third chute 15 limits the tilted collection plate 11. The third chute 15 enables the collection plate 11 to tilt at a certain angle to pour out the debris on the collection plate 11. The collection plate 11 pours the collected plastic debris back above the crushing roller 2 for crushing. After pouring out the debris, the collection plate 11 enters the first chute 13 along the fourth chute 16. When the limit rod 12 moves into the first chute 13, the collection plate 11 falls under the action of its own gravity. Through the movement of the limit rod 12 inside the chute, the angle between the collection plate 11 and the conveyor belt 10 changes when the collection plate 11 moves to different chutes, effectively transporting the collected plastic debris above the crushing roller 2 for secondary crushing.

[0032] Working principle: The screening box 4 screens the unqualified crushed plastic debris into the second limit block 8. The conveyor wheel 9 rotates counterclockwise to drive the conveyor belt 10 and the collection plate 11 hinged to the conveyor belt 10 to rise, bringing the debris above the crushing roller 2. When the limit rod 12 enters the third chute 15, the collection plate 11 tilts under the action of gravity, and the plastic debris collected by the collection plate 11 can be poured above the crushing roller 2 for re-crushing.

[0033] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A device for recycling and crushing defective plastic pipes, comprising a box (1), characterized in that: Two crushing rollers (2) are arranged inside the box body (1), and a screening box (4) is arranged at the bottom of the two crushing rollers (2). Two conveying wheels (9) are rotatably installed inside the box body (1), and the outer sides of the two conveying wheels (9) are meshedly connected with a conveyor belt (10). The two conveying wheels (9) are connected through the conveyor belt (10). A plurality of collecting plates (11) are hingedly connected to the outer sides of the conveyor belt (10), and a second limit block (8) adapted to the movement trajectory of the plurality of conveyor belts (10) is fixedly connected inside the box body (1).

2. The device for recycling and crushing defective plastic pipes according to claim 1 is characterized in that: Both sides of the plurality of collecting plates (11) are fixedly connected with limit rods (12); the inner walls of the box body (1) are provided with second slide grooves (14) adapted to the plurality of limit rods (12); the plurality of limit rods (12) are respectively slidably connected to the inside of the two second slide grooves (14); the inner walls of the box body (1) are provided with a first slide groove (13), a third slide groove (15) and a fourth slide groove (16); the two first slide grooves (13), the third slide groove (15) and the fourth slide groove (16) are respectively connected to the two second slide grooves (14).

3. The device for recycling and crushing defective plastic pipes according to claim 1 is characterized in that: Two drainage blocks (6) are fixedly connected inside the box body (1); the rear side of the bottom of the screening box (4) is slidably connected to a limiting plate (5); the bottom of the limiting plate (5) is fixedly connected to the drainage block (6); and the top of the drainage block (6) away from the limiting plate (5) of the two drainage blocks (6) is slidably connected to the front side of the bottom of the screening box (4).

4. The device for recycling and crushing defective plastic pipes according to claim 3 is characterized in that: A funnel (3) is provided at the bottom of the two crushing rollers (2), the outer sides of the two crushing rollers (2) are in close contact with the funnel (3), the outer sides of the funnel (3) are fixedly connected to the box body (1), the bottom of the funnel (3) is in close contact with the screening box (4), and the front side of the funnel (3) is in close contact with a plurality of collecting plates (11).

5. The device for recycling and crushing defective plastic pipes according to claim 4, characterized in that: A fixing rod (23) is fixedly connected to one side of the screening box (4), an annular limit block (22) is fixedly connected to one side of the fixing rod (23), a first limit block (7) is fixedly connected to one side of the box body (1), a first transmission rod (19) is rotatably connected to the inside of the first limit block (7), a fixing block (20) is fixedly connected to the top of the first transmission rod (19), a third limit block (21) is fixedly connected to one side of the top of the fixing block (20), and the third limit block (21) passes through the annular limit block (22) and is slidably connected to the annular limit block (22).

6. The device for recycling and crushing defective plastic pipes according to claim 5, characterized in that: A motor (17) is fixedly connected to one side of the box body (1), and a second transmission rod (25) is fixedly connected to the output end of the motor (17); a third transmission rod (26) is fixedly connected to one side of one of the transmission wheels (9); the third transmission rod (26) passes through the box body (1) and is rotatably connected to the box body (1); one end of each of the first transmission rod (19) and the third transmission rod (26) is fixedly connected to a second bevel gear (24); and two of the second bevel gears (24) are meshingly connected.

7. The device for recycling and crushing defective plastic pipes according to claim 6, characterized in that: The outer side of the second transmission rod (25) and the bottom of the first transmission rod (19) are both fixedly connected with a first bevel gear (18), and the two first bevel gears (18) are meshingly connected.

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