A low-temperature plastic particle crushing and recycling device
By combining low-temperature treatment and a flipping device, the heat problem of hard plastics being crushed at room temperature was solved, enabling the production of high-quality plastic pellets.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU BLUE SKY RECYCLING CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-06-23
AI Technical Summary
Crushing hard plastics at room temperature generates a lot of heat, causing the plastic to melt and stick to the blade, which affects the quality of the crushed plastic particles.
A cryogenic treatment device is used to treat plastics at low temperatures by injecting nitrogen gas. Combined with a turning device and a protective device, the stability is improved. Then, a crushing device is used to crush the plastics, ensuring that the plastics are crushed at low temperatures.
It effectively prevents plastic from melting, improves the crushing quality and stability of plastic particles, and enhances the crushing effect.
Smart Images
Figure CN224391638U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic particle crushing technology, specifically to a low-temperature crushing and recycling device for plastic particles. Background Technology
[0002] Plastic granules refer to granular plastics, which are generally classified into more than 200 types, and further subdivided into thousands of types.
[0003] Common types of plastic granules include general-purpose plastics, engineering plastics, and specialty plastics.
[0004] General-purpose plastics: polypropylene, polyethylene, polyvinyl chloride, polystyrene, polyester, polyurethane, etc.
[0005] Engineering plastics: Nylon, polytetrafluoroethylene, polyoxymethylene, polycarbonate, etc.
[0006] Specialty plastics: thermosetting plastics and functional polymer plastics, such as artificial kidneys.
[0007] Crushing hard plastics (especially those with high toughness and thickness) at room temperature generates a lot of heat, which may cause the plastic to melt and stick to the blade, resulting in low-quality plastic particles after crushing.
[0008] Therefore, a low-temperature crushing and recycling device for plastic particles is proposed. Utility Model Content
[0009] The purpose of this invention is to address the problem that when hard plastics (especially those with high toughness and thickness) are crushed at room temperature, a large amount of heat is generated, which may cause the plastic to melt and stick to the blade, resulting in low quality plastic particles after crushing. This invention provides a low-temperature crushing and recycling device for plastic particles.
[0010] To achieve the above objectives, this utility model specifically adopts the following technical solution:
[0011] A low-temperature crushing and recycling device for plastic granules includes a support frame, a feeding device inside the support frame, a low-temperature treatment device for the plastic to be crushed on the left side wall of the feeding device, a turning device inside the feeding device to improve the low-temperature treatment effect of the plastic to be crushed, a protective device for protecting the moving end of the turning device on the front side wall of the feeding device, and a crushing device inside the support frame for crushing the plastic after low-temperature treatment.
[0012] Furthermore, the feeding device includes a processing box and a feeding hopper. The processing box is fixedly installed inside the support frame. The front and rear side walls of the processing box are provided with fixing grooves and rotating holes. The feeding hopper is fixedly installed on the upper surface of the processing box.
[0013] Furthermore, the cryogenic treatment device includes a gas storage tank, a control valve, a first gas supply pipe, a second gas supply pipe, a gas injector, and a nozzle. The gas storage tank is fixedly installed on the left side wall of the treatment chamber, and the output end of the gas storage tank is opened on its front and rear side walls. The control valve is fixedly installed on the front and rear side walls of the treatment chamber. The first gas supply pipe is fixedly installed between the output end of the gas storage tank and the control valve. The second gas supply pipe is fixedly installed on the right side wall of the control valve. The gas injector is fixedly installed in the fixed slot of the treatment chamber. The input end and output end of the gas injector are respectively opened on its opposite side wall and opposite side wall. The input end of the gas injector is fixedly connected to the second gas supply pipe, and the nozzle is fixedly installed on the output end of the gas injector.
[0014] Furthermore, the flipping device includes a fixed frame, an electric push rod, a limiting slide groove, a rack, a flipping plate, and a gear. The fixed frame is fixedly installed on the front side wall of the processing box, the electric push rod is fixedly installed inside the fixed frame, the limiting slide groove is fixedly installed on the front side wall of the processing box, the rack is slidably installed inside the limiting slide groove, the rack is fixedly connected to the movable end of the electric push rod, the flipping plate is rotatably installed in the rotating hole of the processing box, and the gear is fixedly installed on the outer surface of the flipping plate.
[0015] Furthermore, the protective device includes a fixed base and a protective cover, the fixed base being fixedly installed on the front side wall of the processing box, and the protective cover being fixedly installed on the front side wall of the fixed base.
[0016] Furthermore, the crushing device includes a crushing box, a motor, and a crushing roller. The crushing box is fixedly installed inside the support frame, the motor is fixedly installed on the right side wall of the support frame, and the crushing roller is fixedly installed on the rotating end of the motor.
[0017] The beneficial effects of this utility model are as follows:
[0018] First, the plastic to be crushed is added into the feeding device, and then the plastic in the feeding device is subjected to low-temperature treatment by the low-temperature treatment device. During the low-temperature treatment process, the plastic in the feeding device is supported by a tilting device, so that the low-temperature treatment device can better treat the plastic on the tilting device. A protective device protects the moving end of the tilting device, thereby improving the stability of the tilting device during use. The crushing device crushes the plastic after low-temperature treatment, thereby improving the effect of low-temperature treatment on the plastic to be crushed, and thus improving the quality of plastic granule crushing. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0020] Figure 2 This is an exploded view of a partial structure of this utility model;
[0021] Figure 3 This is a partial structural schematic diagram of the present invention;
[0022] Figure 4 This is a utility model Figure 2 Enlarged view of point A;
[0023] Reference numerals in the attached drawings: 1. Support frame; 2. Feeding device; 201. Processing box; 202. Feed hopper; 3. Low temperature treatment device; 301. Gas storage tank; 302. Control valve; 303. Gas supply pipe one; 304. Gas supply pipe two; 305. Gas injector; 306. Nozzle; 4. Tilting device; 401. Fixing frame; 402. Electric push rod; 403. Limiting slide; 404. Rack; 405. Tilting plate; 406. Gear; 5. Protective device; 501. Fixing base; 502. Protective cover; 6. Crushing device; 601. Crushing box; 602. Motor; 603. Crushing roller. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0026] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0027] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0028] Please see Figure 1-4 A low-temperature crushing and recycling device for plastic granules includes a support frame 1, a feeding device 2 inside the support frame 1, a low-temperature treatment device 3 on the left side wall of the feeding device 2 for low-temperature treatment of the plastic to be crushed, a turning device 4 inside the feeding device 2 to improve the low-temperature treatment effect of the plastic to be crushed, a protective device 5 on the front side wall of the feeding device 2 to protect the moving end of the turning device 4, and a crushing device 6 inside the support frame 1 for crushing the plastic after low-temperature treatment.
[0029] Specifically, the process involves first adding crushed plastic into the feeding device 2, and then subjecting the plastic in the feeding device 2 to low-temperature treatment via the low-temperature treatment device 3. During the low-temperature treatment process, the low-temperature treatment device 3 supports the plastic in the feeding device 2 via the tilting device 4, allowing the low-temperature treatment device 3 to better treat the plastic on the tilting device 4. The moving end of the tilting device 4 is protected by the protective device 5, thereby improving the stability of the tilting device 4 during use. Finally, the plastic after low-temperature treatment is crushed by the crushing device 6, thereby improving the effect of low-temperature treatment on the plastic to be crushed and thus improving the quality of the crushed plastic particles.
[0030] The feeding device 2 includes a processing box 201 and a feeding hopper 202. The processing box 201 is fixedly installed inside the support frame 1. The front and rear side walls of the processing box 201 are provided with fixing grooves and rotating holes. The feeding hopper 202 is fixedly installed on the upper end face of the processing box 201.
[0031] Specifically, the processing box 201 and the feed hopper 202 provide stable support for the cryogenic treatment device 3, the tilting device 4 and the protective device 5.
[0032] The cryogenic treatment device 3 includes a gas storage tank 301, a control valve 302, a first gas supply pipe 303, a second gas supply pipe 304, a gas injector 305, and a nozzle 306. The gas storage tank 301 is fixedly installed on the left side wall of the treatment box 201, and the output end of the gas storage tank 301 is opened on its front and rear side walls. The control valve 302 is fixedly installed on the front and rear side walls of the treatment box 201. The first gas supply pipe 303 is fixedly installed between the output end of the gas storage tank 301 and the control valve 302. The second gas supply pipe 304 is fixedly installed on the right side wall of the control valve 302. The gas injector 305 is fixedly installed in the fixed groove of the treatment box 201. The input end and the output end of the gas injector 305 are respectively opened on its opposite side wall and the opposite side wall. The input end of the gas injector 305 is fixedly connected to the second gas supply pipe 304. The nozzle 306 is fixedly installed on the output end of the gas injector 305.
[0033] Specifically, the gas injector 305 injects nitrogen gas from the gas storage tank 301 through the nozzle 306 onto the plastic surface in the feeding device 2 via the gas supply pipe 303 and the gas supply pipe 304, and controls the nitrogen gas supply through the control valve 302, thereby enabling the plastic particles to reach the embrittlement temperature in a very short time before crushing, thus achieving the purpose of low-temperature treatment of the plastic.
[0034] The flipping device 4 includes a fixed frame 401, an electric push rod 402, a limiting slide groove 403, a rack 404, a flipping plate 405, and a gear 406. The fixed frame 401 is fixedly installed on the front side wall of the processing box 201. The electric push rod 402 is fixedly installed inside the fixed frame 401. The limiting slide groove 403 is fixedly installed on the front side wall of the processing box 201. The rack 404 is slidably installed inside the limiting slide groove 403. The rack 404 is fixedly connected to the movable end of the electric push rod 402. The flipping plate 405 is rotatably installed in the rotating hole of the processing box 201. The gear 406 is fixedly installed on the outer surface of the flipping plate 405.
[0035] Specifically, the teeth on the surface of gear 406 match the teeth on the surface of rack 404, thereby driving rack 404 to move up and down within limit groove 403 via electric push rod 402. As a result, rack 404 drives gear 406 to rotate, and gear 406 drives flip plate 405 to flip. This allows plastic to stay on flip plate 405 when it enters processing box 201 for low-temperature treatment by low-temperature treatment device 3, thereby improving the low-temperature treatment effect of low-temperature treatment device 3 on plastic on flip plate 405.
[0036] The protective device 5 includes a fixed base 501 and a protective cover 502. The fixed base 501 is fixedly installed on the front side wall of the processing box 201, and the protective cover 502 is fixedly installed on the front side wall of the fixed base 501.
[0037] Specifically, the moving end of the flipping device 4 is protected by the fixed base 501 and the protective cover 502, thereby improving the stability of the flipping device 4 during use.
[0038] The crushing device 6 includes a crushing box 601, a motor 602, and a crushing roller 603. The crushing box 601 is fixedly installed inside the support frame 1, the motor 602 is fixedly installed on the right side wall of the support frame 1, and the crushing roller 603 is fixedly installed on the rotating end of the motor 602.
[0039] Specifically, the crushing roller 603 driven by motor 602 crushes the plastic after low-temperature treatment.
[0040] In summary:
[0041] First, crushed plastic is added to the feeding device 2, and then cryogenically treated by the cryogenic treatment device 3. During the cryogenic treatment process, the cryogenic treatment device 3 supports the plastic in the feeding device 2 through the tilting device 4, allowing the cryogenic treatment device 3 to better treat the plastic on the tilting device 4. The moving end of the tilting device 4 is protected by the protective device 5, thereby improving the stability of the tilting device 4 during use. The crushing device 6 crushes the cryogenically treated plastic, thereby improving the effect of cryogenic treatment on the plastic to be crushed, and thus improving the quality of the crushed plastic particles. The processing box 201 and the feeding hopper 202 provide stable support for the cryogenic treatment device 3, the tilting device 4, and the protective device 5. The gas injector 305 sprays nitrogen gas from the gas storage tank 301 through the nozzle 306 onto the surface of the plastic in the feeding device 2 through the gas supply pipe 1 303 and the gas supply pipe 2 304. The nitrogen gas supplied is controlled by the control valve 302, thereby enabling the plastic particles to reach the embrittlement temperature in a very short time before crushing, thus achieving the purpose of low-temperature treatment of the plastic. The teeth on the surface of the gear 406 match the teeth on the surface of the rack 404, so the electric push rod 402 drives the rack 404 to move up and down in the limiting slide groove 403, thereby driving the gear 406 to rotate, and the gear 406 drives the tilting plate 405 to tilt, so that when the plastic enters the processing box 201 and is subjected to low-temperature treatment by the low-temperature treatment device 3, it can stay on the tilting plate 405, thereby improving the low-temperature treatment effect of the low-temperature treatment device 3 on the plastic on the tilting plate 405. The moving end of the tilting device 4 is protected by the fixed seat 501 and the protective cover 502, thereby improving the stability of the tilting device 4 during use. The crushing roller 603 driven by the motor 602 crushes the low-temperature treated plastic.
[0042] 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 invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A low-temperature crushing and recycling device for plastic granules, comprising a support frame (1), characterized in that, The support frame (1) is equipped with a feeding device (2). The left side wall of the feeding device (2) is equipped with a low-temperature treatment device (3) for low-temperature treatment of the plastic to be crushed. The feeding device (2) is equipped with a turning device (4) to improve the low-temperature treatment effect of the plastic to be crushed. The front side wall of the feeding device (2) is equipped with a protective device (5) to protect the moving end of the turning device (4). The support frame (1) is equipped with a crushing device (6) for crushing the plastic after low-temperature treatment.
2. The low-temperature crushing and recycling equipment for plastic granules according to claim 1, characterized in that, The feeding device (2) includes a processing box (201) and a feeding hopper (202). The processing box (201) is fixedly installed inside the support frame (1). The front and rear side walls of the processing box (201) are provided with fixing grooves and rotating holes. The feeding hopper (202) is fixedly installed on the upper surface of the processing box (201).
3. The low-temperature crushing and recycling equipment for plastic granules according to claim 2, characterized in that, The cryogenic treatment device (3) includes a gas storage tank (301), a control valve (302), a first gas supply pipe (303), a second gas supply pipe (304), a gas injector (305), and a nozzle (306). The gas storage tank (301) is fixedly installed on the left side wall of the treatment box (201), and the output end of the gas storage tank (301) is opened on its front and rear side walls. The control valve (302) is fixedly installed on the front and rear side walls of the treatment box (201), and the first gas supply pipe (303) is fixedly installed on the gas storage tank (301). The gas supply pipe (304) is fixedly installed on the right side wall of the control valve (302) between the output end of the gas supply pipe (304) and the control valve (302). The gas injector (305) is fixedly installed in the fixed groove of the processing box (201). The input end and output end of the gas injector (305) are respectively opened on its opposite side wall and opposite side wall. The input end of the gas injector (305) is fixedly connected to the gas supply pipe (304). The nozzle (306) is fixedly installed on the output end of the gas injector (305).
4. The low-temperature crushing and recycling equipment for plastic granules according to claim 2, characterized in that, The flipping device (4) includes a fixed frame (401), an electric push rod (402), a limiting groove (403), a rack (404), a flipping plate (405), and a gear (406). The fixed frame (401) is fixedly installed on the front side wall of the processing box (201). The electric push rod (402) is fixedly installed inside the fixed frame (401). The limiting groove (403) is fixedly installed on the front side wall of the processing box (201). The rack (404) is slidably installed inside the limiting groove (403). The rack (404) is fixedly connected to the movable end of the electric push rod (402). The flipping plate (405) is rotatably installed in the rotating hole of the processing box (201). The gear (406) is fixedly installed on the outer surface of the flipping plate (405).
5. The low-temperature crushing and recycling equipment for plastic granules according to claim 2, characterized in that, The protective device (5) includes a fixed base (501) and a protective cover (502). The fixed base (501) is fixedly installed on the front side wall of the processing box (201), and the protective cover (502) is fixedly installed on the front side wall of the fixed base (501).
6. The low-temperature crushing and recycling equipment for plastic granules according to claim 1, characterized in that, The crushing device (6) includes a crushing box (601), a motor (602) and a crushing roller (603). The crushing box (601) is fixedly installed inside the support frame (1). The motor (602) is fixedly installed on the right side wall of the support frame (1). The crushing roller (603) is fixedly installed on the rotating end of the motor (602).