Plastic product crushing device
By designing a plastic crushing device with adjustable crushing roller spacing and a fan-generated air film, the problem of fragment adhesion caused by fixed spacing was solved, improving cleaning efficiency and crushing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-04-14
AI Technical Summary
The existing plastic crushing equipment has a fixed and unadjustable gap between the crushing rollers, which makes it easy for fragments to stick to the wall surface, increasing the difficulty of cleaning, and it cannot adapt to different usage conditions.
An adjustable crushing roller spacing plastic crushing device was designed. The roller spacing is adjusted by a combination of movable wheel and tension wheel, and a fan is used to form an air film to accelerate the feeding of fragments and prevent them from sticking together.
It enables adjustment of the crushing roller spacing according to usage conditions, reducing fragment adhesion and improving cleaning efficiency and crushing effect.
Smart Images

Figure CN224114043U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic product processing technology, specifically to a plastic product crushing device. Background Technology
[0002] Currently, the main types of waste plastics in society are plastic films, plastic filaments and woven products, foam plastics, plastic packaging boxes and containers, daily plastic products, plastic bags, and agricultural mulch films. If the storage, transportation, processing, application, and post-processing of these waste plastics are not handled properly, they will inevitably damage the environment and endanger public health.
[0003] Existing plastic crushing devices have a fixed distance between their pair of crushing rollers, which cannot be adjusted according to different usage conditions. If the crushed plastic contains moisture, it may stick to the side wall of the crushing device after crushing, increasing the difficulty of cleaning. Utility Model Content
[0004] In view of the shortcomings of the prior art, this utility model provides a plastic product crushing device, which solves the technical problem mentioned in the background art that the gap between the crushing rollers cannot be adjusted and the fragments are easy to remain and stick to the wall surface.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a plastic product crushing device, comprising a housing, with fixed wheel mounting holes and movable wheel mounting holes on both the front and rear side walls of the housing, a feed inlet at the top of the housing, a discharge outlet inside the housing, a tension wheel mounting hole on the front side wall of the housing, a crushing motor bracket fixedly mounted on the front side wall of the housing at the fixed wheel mounting hole, a crushing motor fixedly mounted on the crushing motor bracket, and a fixed wheel connected to the drive end of the crushing motor through the wall of the crushing motor bracket and the fixed wheel mounting hole into the housing; a movable wheel is connected between a pair of movable wheel mounting holes. A fixing sleeve is inserted into both the tension wheel mounting hole and the pair of movable wheel mounting holes. A pair of clamping blocks are fitted onto the fixing sleeve, clamping the movable wheel mounting hole or the tension wheel mounting hole in the center. A fixing nut is screwed onto the fixing sleeve, and a spring washer is provided between the fixing nut and the clamping blocks. A pulley is fixedly fitted inside the crushing motor bracket of the fixing wheel. The shaft of the movable wheel passes through the fixing sleeve on the movable wheel mounting hole on the front side wall and is fixedly connected to the pulley. A tension wheel is connected to the fixing sleeve on the tension wheel mounting hole. A belt is fitted in a figure-eight shape onto the tension wheel and the pair of pulleys.
[0006] Preferably, a conveyor belt motor is fixedly installed on one side below the front wall of the housing, and the drive end of the conveyor belt motor passes through the housing wall and is connected to the conveyor belt inside the housing.
[0007] Preferably, strip fans are fixedly installed on both the left and right side walls of the housing, and a fan motor is fixedly installed on the front side wall of the strip fan. The drive end of the fan motor passes through the wall of the strip fan and is connected to the fan blades inside the strip fan. The air outlet of the strip fan opens into the housing through an air duct, and the end of the air duct is provided with an air outlet above the feed port.
[0008] Preferably, the movable wheel mounting hole has a horizontal opening, and the tension wheel mounting hole has a vertical opening.
[0009] Preferably, the fixed wheel and the movable wheel are evenly provided with a plurality of cutting teeth, and the fixed wheel and the movable wheel are installed alternately.
[0010] Preferably, the discharge port is hourglass-shaped.
[0011] Preferably, a rubber anti-slip pad layer is provided on the side of the pair of clamping and fixing blocks that contacts the wall of the housing.
[0012] Beneficial effects
[0013] This utility model provides a plastic product crushing device that solves the technical problem that the spacing between the crushing rollers cannot be adjusted and that fragments are easy to remain and stick to the wall surface. It has the following beneficial effects: When using this device, the spacing between a pair of crushing rollers is adjusted through the movable wheel mounting hole, and the position of the tension wheel is adjusted through the tension wheel mounting hole to ensure the transmission between the fixed wheel and the movable wheel and meet the usage conditions of different crushing degrees. At the same time, this device sends air to the upper side wall of the feed inlet through a strip fan to form a flowing air film on the upper side wall, which accelerates the feeding of fragments and also prevents fragments from contacting and sticking to the side wall surface. Attached Figure Description
[0014] Figure 1 This is a front view of the plastic product crushing device described in this utility model.
[0015] Figure 2 This is a front view of the plastic product crushing device of this utility model.
[0016] Figure 3 This is a structural diagram of a plastic product crushing device according to the present invention.
[0017] Figure 4 This is a structural diagram of the adjustment and fixing mechanism of the plastic product crushing device described in this utility model.
[0018] In the diagram: 1. Housing; 2. Crusher motor bracket; 3. Crusher motor; 4. Belt; 5. Pulley; 6. Tensioner; 7. Conveyor motor; 8. Strip fan; 9. Fan motor; 10. Fixed wheel mounting hole; 11. Movable wheel mounting hole; 12. Tensioner mounting hole; 13. Feed inlet; 14. Fixed wheel; 15. Movable wheel; 16. Fan blade; 17. Air duct; 18. Air outlet; 19. Discharge port; 20. Conveyor belt; 21. Clamping block; 22. Fixing sleeve; 23. Spring washer; 24. Fixing nut. Detailed Implementation
[0019] 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.
[0020] Please see Figure 1-4 This utility model provides a technical solution for a plastic product crushing device: a plastic product crushing device includes a housing 1, with fixed wheel mounting holes 10 and movable wheel mounting holes 11 on both the front and rear side walls of the housing 1, a feed inlet 13 at the top of the housing 1, a discharge outlet 19 inside the housing 1, a tension wheel mounting hole 12 on the front side wall of the housing 1, a crushing motor bracket 2 fixedly mounted on the front side wall of the housing 1 at the fixed wheel mounting hole 10, a crushing motor 3 fixedly mounted on the crushing motor bracket 2, and a fixed wheel 14 connected to the drive end of the crushing motor 3 through the wall of the crushing motor bracket 2 and the fixed wheel mounting hole 10 into the housing 1, a movable wheel 15 connected between a pair of movable wheel mounting holes 11, and a tension wheel. A fixing sleeve 22 is inserted into both the mounting hole 12 and the pair of movable wheel mounting holes 11. A pair of clamping fixing blocks 21 are fitted onto the fixing sleeve 22. The pair of clamping fixing blocks 21 clamp the movable wheel mounting hole 11 or the tension wheel mounting hole 12 in the center. A fixing nut 24 is screwed onto the fixing sleeve 22. A spring washer 23 is provided between the fixing nut 24 and the clamping fixing block 21. The shaft of the fixed wheel 14 is partially fixedly fitted with a pulley 5 inside the crushing motor bracket 2. The shaft of the movable wheel 15 passes through the fixing sleeve 22 on the movable wheel mounting hole 11 on the front side wall and is fixedly connected to the pulley 5. The fixing sleeve 22 on the tension wheel mounting hole 12 is connected to the tension wheel 6. A belt 4 is fitted in a figure-eight shape on the tension wheel 6 and the pair of pulleys 5.
[0021] Furthermore, a conveyor belt motor 7 is fixedly installed on one side below the front wall of the housing 1, and the drive end of the conveyor belt motor 7 passes through the wall of the housing 1 and is connected to the conveyor belt 20 inside the housing 1.
[0022] Furthermore, strip fans 8 are fixedly installed on both the left and right side walls of the housing 1. A fan motor 9 is fixedly installed on the front side wall of the strip fan 8. The drive end of the fan motor 9 passes through the wall of the strip fan 8 and is connected to the fan blade 16 inside the strip fan 8. The air outlet of the strip fan 8 opens into the housing 1 with an air duct 17. The end of the air duct 17 is provided with an air outlet 18 above the feed port 19.
[0023] Furthermore, the movable wheel mounting hole 11 is a horizontal opening, and the tension wheel mounting hole 12 is a vertical opening.
[0024] Furthermore, the fixed wheel 14 and the movable wheel 15 are evenly provided with a number of cutting teeth, and the fixed wheel 14 and the movable wheel 15 are installed alternately.
[0025] Furthermore, the discharge port 19 is hourglass-shaped, with a constricted structure at the top to guide airflow and form an air film for easy material discharge, and an open structure at the bottom to slow down the airflow speed and prevent the airflow from blowing onto the conveyor belt.
[0026] Furthermore, a pair of clamping and fixing blocks 21 are provided with a rubber anti-slip pad layer on the side that contacts the wall of the housing 1.
[0027] Example: When using this device, the spacing between 14 and 15 is first determined according to the usage conditions to meet the size of plastic breakage under different usage conditions.
[0028] Loosen the 23 on both sides of 11, then push 15 to move within 11, adjust the distance between 14 and 15, and when the desired spacing is reached, tighten 23. 23 and 22 fit together, and a pair of 21 clamps and fixes the central 1. The rubber anti-slip pads on 21 contact 1 to increase friction and thus increase the fixing effect.
[0029] After 15 moves 5, 4 is in a relaxed state. At this time, loosen 23 on 12, and move 6 downward through 12, so that 6 drives 4 to tighten. Then rotate 23 to fix it. The fixing principle is the same as above.
[0030] At this time, drive 5 on drive 14 rotates, which drives drive 15 to rotate. Drives 14 and 15 rotate relative to each other, crushing the material entering from 13. The crushed material falls onto 19 and is transferred from the through hole of 19 to 20 for discharge.
[0031] During crushing, a pair of 9s are activated, drawing in outside air through 8 and conveying it to 18 through 17. The air output from 18 impacts the inclined wall at the top of 19, forming a downward-flowing air film on this wall. This accelerates the feeding speed of the crushed material and prevents the material from sticking or getting stuck on the wall, thus increasing the difficulty of cleaning.
[0032] 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 entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.
Claims
1. A plastic product crushing device, comprising a housing (1), characterized in that, Fixed wheel mounting holes (10) and movable wheel mounting holes (11) are provided on the front and rear side walls of the housing (1). A feed inlet (13) is provided at the top of the housing (1). A discharge outlet (19) is provided inside the housing (1). A tension wheel mounting hole (12) is provided on the front side wall of the housing (1). A crushing motor bracket (2) is fixedly installed on the front side wall of the housing (1) at the fixed wheel mounting hole (10). A crushing motor (3) is fixedly installed on the crushing motor bracket (2). The drive end of the crushing motor (3) passes through the wall of the crushing motor bracket (2) and the fixed wheel mounting hole (10) and is connected to a fixed wheel (14) inside the housing (1). A movable wheel (15) is connected between a pair of movable wheel mounting holes (11). A fixing sleeve is inserted into both the tension wheel mounting hole (12) and the pair of movable wheel mounting holes (11). The cylinder (22) has a pair of clamping blocks (21) fitted on the fixed sleeve (22). The pair of clamping blocks (21) clamp the movable wheel mounting hole (11) or the tension wheel mounting hole (12) in the center. The fixed sleeve (22) is screwed with a fixing nut (24). A spring washer (23) is provided between the fixing nut (24) and the clamping blocks (21). The shaft of the fixed wheel (14) is fixedly fitted with a pulley (5) inside the crushing motor bracket (2). The shaft of the movable wheel (15) passes through the fixed sleeve (22) on the movable wheel mounting hole (11) on the front side wall and is fixedly connected to the pulley (5). The fixed sleeve (22) on the tension wheel mounting hole (12) is connected to the tension wheel (6). The tension wheel (6) and the pair of pulleys (5) are fitted with belts (4) in a figure-eight shape.
2. The plastic product crushing device according to claim 1, characterized in that, A conveyor belt motor (7) is fixedly installed on one side below the front wall of the housing (1). The drive end of the conveyor belt motor (7) passes through the wall of the housing (1) and is connected to a conveyor belt (20) inside the housing (1).
3. The plastic product crushing device according to claim 1, characterized in that, A strip fan (8) is fixedly installed on both the left and right side walls of the housing (1). A fan motor (9) is fixedly installed on the front side wall of the strip fan (8). The drive end of the fan motor (9) passes through the wall of the strip fan (8) and is connected to the fan blade (16) inside the strip fan (8). The air outlet of the strip fan (8) opens into the housing (1) with an air duct (17). The end of the air duct (17) is provided with an air outlet (18) above the feed port (19).
4. The plastic product crushing device according to claim 1, characterized in that, The movable wheel mounting hole (11) is a horizontal opening, and the tension wheel mounting hole (12) is a vertical opening.
5. A plastic product crushing device according to claim 1, characterized in that, The fixed wheel (14) and the movable wheel (15) are evenly provided with a number of cutting teeth, and the fixed wheel (14) and the movable wheel (15) are installed alternately.
6. A plastic product crushing device according to claim 1, characterized in that, The discharge port (19) is hourglass-shaped.
7. A plastic product crushing device according to claim 1, characterized in that, A pair of clamping blocks (21) are provided with a rubber anti-slip pad layer on the side that contacts the wall of the housing (1).