Smashing device for recycling waste plastic plates
By introducing a cutting blade and spring rod structure into the waste plastic sheet recycling device, the problem of bouncing during crushing of long plastic sheets has been solved, achieving safe and efficient crushing and screening of plastic sheets, and improving the stability and safety of the equipment.
Patent Information
- Application Number
- CN202520347923.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-28
AI Technical Summary
In the recycling of waste plastic sheets, longer plastic sheets are prone to bouncing or standing upright during crushing, which can cause injuries to operators.
A crushing device for recycling waste plastic sheets was designed, comprising a crushing box, side plates, rotating rollers, hydraulic cylinders, and cutting blades. The cutting blades are driven by the hydraulic cylinders to pre-cut the plastic sheets, and the fixed frame and spring rods provide downward pressure. In conjunction with the screen plate and the cylinder, the screen plate vibrates and screens the plastic particles. A protective cover prevents debris from splashing.
It effectively reduces the risk of plastic sheets bouncing or standing upright during the crushing process, improves cutting stability and material collection uniformity, reduces the risk of operator injury, and increases the service life and safety of the equipment.
Smart Images
Figure CN223834877U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of plastic board recycling technology, specifically a crushing device for recycling waste plastic boards. Background Technology
[0002] Waste plastic sheets refer to plastic sheets that have already been used, usually referring to post-consumer plastic waste, that is, discarded plastic products after consumption or use. These waste plastic sheets can be recycled and reused to transform them into new plastic products or other useful products.
[0003] In the process of recycling and reusing waste plastic sheets, it is usually necessary to crush various waste plastic sheets. Crushing equipment such as crushing rollers is usually used to turn the plastic sheets into granules to facilitate subsequent processing. During long-term use and observation, it was found that when crushing plastic sheets, some of the plastic sheets are large in size and length. When they enter the crushing equipment, they will bounce or stand upright, which can easily lead to injury to the operators.
[0004] Therefore, this utility model provides a crushing device for recycling waste plastic boards. Utility Model Content
[0005] To overcome the shortcomings of the existing technology and solve at least one of the problems mentioned in the background technology, a crushing device for recycling waste plastic boards is proposed.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The waste plastic board recycling crushing device of this utility model includes a crushing box; a pair of side plates are fixedly connected to the side wall of the crushing box; multiple rotating rollers are rotatably connected to the side wall of the side plates; a support frame is fixedly connected to the top of the crushing box; a hydraulic cylinder is fixedly connected to the top of the support frame; a cutting blade is fixedly connected to the bottom of the hydraulic cylinder; and multiple support legs are evenly fixed to the bottom of the crushing box. Through the above structure, the side plates and rotating rollers, together with the hydraulic cylinder and the cutting blade, can facilitate the pre-cutting of long plastic boards when crushing them, so as to reduce the situation where long plastic boards bounce or stand upright, causing injury to operators.
[0007] Preferably, a fixing frame is fixedly connected to the top of the side plate; multiple spring rods are installed in the middle of the fixing frame; the multiple spring rods are evenly distributed in the middle of the fixing frame; through the above structure, the fixing frame and spring rods can generate a downward pressure force when cutting the plastic sheet, so as to reduce the bending or warping of the plastic sheet during cutting and improve the stability during cutting.
[0008] Preferably, a pair of fixing rods are fixedly connected to the side wall of the support leg; a sieve plate is installed in the middle of the pair of fixing rods; the sieve plate is inclined; with the above structure, the sieve plate can be used to screen the crushed plastic particles, separate the particles of different sizes for collection, facilitate subsequent processing, and improve the uniformity of material collection.
[0009] Preferably, a cylinder is fixedly connected to the bottom of the crushing box; a top block is fixedly connected to the end of the cylinder; a pad is fixedly connected to the side wall of the sieve plate; multiple spring bodies are fixedly connected to the side wall of the support leg; the ends of the spring bodies are fixedly connected to the side wall of the sieve plate; the sieve plate is slidably connected to the middle of the fixed rod; with the above structure, the cylinder, top block, pad, and spring bodies cooperate to make the sieve plate vibrate and slide, thereby improving the screening effect of plastic particles and reducing the clogging of the sieve plate by plastic particles.
[0010] Preferably, a fixing plate is fixedly connected to the bottom of the spring rod; a roller is fixedly connected to the bottom of the fixing plate; through the above structure, the fixing plate and roller can reduce the friction between the spring rod and the plastic plate, thereby reducing the friction that causes the spring rod to wear out significantly and improving its service life.
[0011] Preferably, a protective cover is fixed to the top of the crushing chamber; the protective cover has a side opening structure; with the above structure, the protective cover can reduce the possibility of debris splashing outside the crushing chamber, causing pollution and injury to the operator.
[0012] The beneficial effects of this utility model are as follows:
[0013] 1. The waste plastic board recycling crushing device of this utility model, by setting side plates and rotating rollers, and cooperating with hydraulic cylinders and cutting blades, can facilitate the pre-cutting of plastic boards when crushing long plastic boards, so as to reduce the situation where long plastic boards bounce or stand up, causing injury to operators.
[0014] 2. The waste plastic board recycling crushing device of this utility model, by setting a fixed frame and a spring rod, can generate a downward pressure force when cutting the plastic board, so as to reduce the bending or warping of the plastic board during cutting and improve the stability during cutting. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings.
[0016] Figure 1 This is a perspective view of the present invention;
[0017] Figure 2 This is a schematic diagram of the crushing box in this utility model;
[0018] Figure 3This is a schematic diagram of the spring rod in this utility model;
[0019] Figure 4 This is a schematic diagram of the cooperation structure between the sieve plate and the cylinder in this utility model;
[0020] Figure 5 This is a schematic diagram of the sieve plate in this utility model.
[0021] Legend:
[0022] 1. Crushing box; 11. Side plate; 12. Rotary roller; 13. Support frame; 14. Hydraulic cylinder; 15. Cutting blade; 16. Support leg; 2. Fixing frame; 21. Spring rod; 3. Fixing rod; 31. Screen plate; 4. Cylinder; 41. Top block; 42. Pad plate; 43. Spring body; 5. Fixing plate; 51. Roller; 6. Protective cover. Detailed Implementation
[0023] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0024] Specific implementation examples are given below.
[0025] like Figures 1 to 2 As shown in the embodiment of this utility model, a crushing device for recycling waste plastic sheets includes a crushing box 1; a pair of side plates 11 are fixedly connected to the side wall of the crushing box 1; multiple rotating rollers 12 are rotatably connected to the side wall of the side plates 11; a support frame 13 is fixedly connected to the top of the crushing box 1; a hydraulic cylinder 14 is fixedly connected to the top of the support frame 13; a cutting blade 15 is fixedly connected to the bottom of the hydraulic cylinder 14; multiple support legs 16 are evenly fixed to the bottom of the crushing box 1; during operation, when crushing long plastic sheets, the hydraulic cylinder 14 is activated to drive the cutting blade 15 to move up and down, and then the plastic sheets are crushed. The plastic sheet is placed on the rotating roller 12 and pushed into the crushing box 1. When the plastic sheet passes the cutter 15, it will be pre-cut into small pieces by the cutter 15, and then enter the crushing box 1 to be crushed by the crushing mechanism. After being crushed, it becomes plastic particles and is discharged from the bottom of the crushing box 1. With the above structure, the side plate 11 and the rotating roller 12 are set up, and the hydraulic cylinder 14 and the cutter 15 are used to facilitate the pre-cutting of the plastic sheet when crushing a long plastic sheet, so as to reduce the situation where the long plastic sheet will bounce or stand up, causing injury to the operator.
[0026] like Figure 3As shown, a fixing frame 2 is fixedly connected to the top of the side plate 11; multiple spring rods 21 are installed in the middle of the fixing frame 2; the multiple spring rods 21 are evenly distributed in the middle of the fixing frame 2; during operation, when the plastic plate is pushed on the rotating roller 12, the plastic plate will push up the spring rods 21. At this time, the rebound force generated by the spring rods 21 will press down on the plastic plate. At this time, the spring rods 21 are close to the cutting blade 15, which can generate a downward force when cutting the plastic plate. Through the above structure, the fixing frame 2 and the spring rods 21 can generate a downward force when cutting the plastic plate, so as to reduce the bending or warping of the plastic plate during cutting and improve the stability during cutting.
[0027] like Figure 4 and Figure 5 As shown, a pair of fixing rods 3 are fixedly connected to the side wall of the support leg 16; a screen plate 31 is installed in the middle of the pair of fixing rods 3; the screen plate 31 is inclined; during operation, when plastic particles are discharged from below the crushing box 1, they will fall onto the screen plate 31. At this time, the screen plate 31 will screen the plastic particles. Large particles will fall from the top of the screen plate 31 along its inclined angle, and smaller particles will fall to the bottom of the screen plate 31. Through the above structure, the screen plate 31 can screen the crushed plastic particles, separate the large and small particles for subsequent processing, and improve the uniformity of material collection.
[0028] like Figure 4 and Figure 5 As shown, a cylinder 4 is fixedly connected to the bottom of the crushing box 1; a top block 41 is fixedly connected to the end of the cylinder 4; a pad 42 is fixedly connected to the side wall of the screen plate 31; multiple spring bodies 43 are fixedly connected to the side wall of the support leg 16; the ends of the spring bodies 43 are fixedly connected to the side wall of the screen plate 31; the screen plate 31 is slidably connected to the middle of the fixed rod 3; during operation, the cylinder 4 is continuously stretched and contracted, which drives the top block 41 to continuously impact the pad 42, thereby causing the spring bodies 43 to continuously contract and rebound, which in turn drives the screen plate 31 to slide back and forth on the fixed rod 3. When plastic particles fall onto the screen plate 31, the reciprocating movement of the screen plate 31 can vibrate and screen the plastic particles. Through the above structure, the cylinder 4, top block 41, pad 42 and spring bodies 43 are set together to make the screen plate 31 vibrate and slide, thereby improving the screening effect of plastic particles and reducing the situation of plastic particles clogging the screen plate 31.
[0029] like Figure 3As shown, a fixing plate 5 is fixedly connected to the bottom of the spring rod 21; a roller 51 is fixedly connected to the bottom of the fixing plate 5. During operation, when the spring rod 21 presses down on the plastic plate, the roller 51 will contact the surface of the plastic plate, thereby causing the roller 51 to rotate when the plastic plate moves. At this time, the sliding friction between the spring rod 21 and the plastic plate can be converted into rolling friction. Through the above structure, the fixing plate 5 and the roller 51 can reduce the friction between the spring rod 21 and the plastic plate, thereby reducing the friction that causes the spring rod 21 to wear out and improving its service life.
[0030] like Figure 1 As shown, a protective cover 6 is fixed to the top of the crushing box 1; the protective cover 6 has a side opening structure; when the plastic plate is crushed in the crushing box 1 during operation, a lot of debris will be generated and splashed. At this time, the protective cover 6 will block the debris that splashes to the outside of the crushing box 1. Through the above structure, the protective cover 6 can reduce the situation where debris splashes to the outside of the crushing box 1, causing pollution and injury to the operator.
[0031] like Figure 2 As shown, the cutting blade 15 has an inclined structure; by setting the cutting blade 15 to an inclined structure, the shearing force between the cutting blade 15 and the plastic sheet can be increased, thereby improving the cutting effect on the plastic sheet.
[0032] Working principle: When crushing long plastic sheets, the hydraulic cylinder 14 is activated to drive the cutting blade 15 to move up and down. The plastic sheet is then placed on the rotating roller 12 and pushed into the crushing chamber 1. When the plastic sheet passes the cutting blade 15, it is pre-cut into small pieces and then enters the crushing chamber 1 to be crushed by the crushing mechanism. After being crushed, it becomes plastic particles and is discharged from the bottom of the crushing chamber 1. When the plastic sheet is pushed on the rotating roller 12, it pushes up the spring rod 21. The rebound force generated by the spring rod 21 presses down on the plastic sheet. At this time, the spring rod 21 is close to the cutting blade 15, which can generate a downward pressure force when cutting the plastic sheet. When the plastic particles are discharged from the bottom of the crushing chamber 1, they fall onto the screen plate 31. The screen plate 31 then screens the plastic particles, and larger particles will pass through the screen. The top of plate 31 falls along its inclined angle, and smaller particles fall below the screen plate 31. The cylinder 4 is activated to continuously stretch and contract, which drives the top block 41 to continuously impact the pad plate 42, thereby causing the spring body 43 to continuously contract and rebound. At this time, the screen plate 31 can be driven to slide back and forth on the fixed rod 3. When plastic particles fall on the screen plate 31, the screen plate 31 moves back and forth to vibrate and screen the plastic particles. When the spring rod 21 presses down on the plastic plate, the roller 51 will contact the surface of the plastic plate, thereby causing the roller 51 to rotate when the plastic plate moves. At this time, the sliding friction between the spring rod 21 and the plastic plate can be converted into rolling friction. When the plastic plate is crushed in the crushing box 1, a lot of debris will be splashed. At this time, the protective cover 6 will block the debris that splashes to the outside of the crushing box 1.
[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A crushing device for recycling waste plastic sheets, comprising a crushing box (1); characterized in that: The crushing box (1) has a pair of side plates (11) fixedly connected to its side wall; the side plates (11) are rotatably connected to multiple rollers (12); the crushing box (1) has a support frame (13) fixedly connected to its top; the support frame (13) has a hydraulic cylinder (14) fixedly connected to its top; the hydraulic cylinder (14) has a cutting blade (15) fixedly connected to its bottom; and the crushing box (1) has multiple support legs (16) evenly fixedly connected to its bottom.
2. The crushing device for recycling waste plastic sheets according to claim 1, characterized in that: A fixing frame (2) is fixedly connected to the top of the side plate (11); a plurality of spring rods (21) are installed in the middle of the fixing frame (2); the plurality of spring rods (21) are evenly distributed in the middle of the fixing frame (2).
3. The crushing device for recycling waste plastic sheets according to claim 1, characterized in that: A pair of fixing rods (3) are fixed to the side wall of the support leg (16); a sieve plate (31) is installed in the middle of the pair of fixing rods (3); the sieve plate (31) is inclined.
4. The crushing device for recycling waste plastic sheets according to claim 3, characterized in that: A cylinder (4) is fixedly connected to the bottom of the crushing box (1); a top block (41) is fixedly connected to the end of the cylinder (4); a pad (42) is fixedly connected to the side wall of the sieve plate (31); a plurality of spring bodies (43) are fixedly connected to the side wall of the support leg (16); the end of the spring body (43) is fixedly connected to the side wall of the sieve plate (31); the sieve plate (31) is slidably connected to the middle of the fixed rod (3).
5. The crushing device for recycling waste plastic sheets according to claim 2, characterized in that: A fixing plate (5) is fixedly connected to the bottom of the spring rod (21); a roller (51) is fixedly connected to the bottom of the fixing plate (5).
6. The crushing device for recycling waste plastic sheets according to claim 1, characterized in that: The top of the crushing box (1) is fixed with a protective cover (6); the protective cover (6) has a side opening structure.
7. The crushing device for recycling waste plastic sheets according to claim 1, characterized in that: The cutting blade (15) has an inclined structure.