Plastic recycling ring cutting device
By using nozzle cutting and vibration screening in the plastic recycling ring cutting device, the problems of adhesion and thermal sticking in plastic processing are solved, and high-quality plastic granules are produced efficiently.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG DECRO FILM NEW MATERIALS CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-07-21
AI Technical Summary
Plastic tends to stick to cutting tools during processing, affecting the sharpness of the tools. Insufficient cooling can also cause plastic particles to stick together due to heat, affecting the quality of the finished product.
The plastic recycling ring cutting device includes an extruder, a cutting component, and a recycling component. High-pressure water is ejected from the nozzle to cut long strips of material into plastic granules, which are then screened and cooled by a vibrating screen to avoid heat sticking.
This effectively prevents plastic granules from sticking together due to heat, improves the quality of the finished product, and uses a vibrating screen to select plastic granules that meet the diameter requirements, thereby improving production efficiency and product quality.
Smart Images

Figure CN224527660U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic processing technology, and in particular to a plastic recycling ring cutting device. Background Technology
[0002] During plastic processing, because plastics are difficult to degrade naturally, waste plastics usually cause significant environmental harm. Therefore, waste plastics are typically recycled. In existing recycling processes, plastic raw materials usually need to be heated to melt before being mechanically cut into plastic granules. However, plastic tends to stick to the cutting tools, affecting their sharpness; moreover, the plastic granules cannot be cooled in time. When cooling is insufficient, the plastic granules will stick together due to heat, ultimately affecting the quality of the finished plastic granule product. Utility Model Content
[0003] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, this invention proposes a plastic recycling ring-cutting device.
[0004] This utility model embodiment provides a plastic recycling ring-cutting device, the plastic recycling ring-cutting device comprising:
[0005] frame;
[0006] An extruder is mounted on the frame, and the left end face of the extruder is provided with a discharge port;
[0007] A cutting assembly is mounted on the frame. The cutting assembly includes a cutting box, a nozzle, and a water supply component. The left end of the extruder is inserted into the cutting box. The water supply component passes through the cutting box. The nozzle is located inside the cutting box and on the left side of the extruder. The nozzle is connected to the water outlet of the water supply component. The nozzle is used to inject water jets to cut long strips of material to form plastic granules. A feed pipe is provided on the lower side of the cutting box.
[0008] The recycling assembly includes a recycling bin and a vibrating motor. The recycling bin is equipped with a vibrating screen for receiving plastic granules from the feed pipe. The vibrating motor is mounted on the recycling bin.
[0009] According to some embodiments of the present invention, the cutting box is slidably connected to the frame in the left-right direction, and the cutting box can drive the nozzle to move in the left-right direction.
[0010] According to some embodiments of the present invention, the outer peripheral wall of the nozzle is provided with a plurality of water outlet branches, and the plurality of water outlet branches are distributed along the circumference of the nozzle.
[0011] According to some embodiments of the present invention, the water supply component includes a water supply pipe, a rotary joint, and a water outlet pipe. The water outlet pipe is inserted through and rotatably connected to the cutting box. The right end of the water outlet pipe is connected to the nozzle, the left end of the water outlet pipe is rotatably connected to the rotary joint, and the lower end of the water supply pipe is fixedly connected to the rotary joint. The water outlet pipe can rotate around its own axis to drive the nozzle to rotate.
[0012] According to some embodiments of the present invention, the water supply component further includes a first drive motor, a first synchronous pulley, a second synchronous pulley, and a synchronous belt. The drive end of the first drive motor is fixedly connected to the first synchronous pulley, the second synchronous pulley is sleeved and fixedly connected to the water outlet pipe, and the synchronous belt is connected to the first synchronous pulley and the second synchronous pulley respectively.
[0013] According to some embodiments of the present invention, the water supply pipe is equipped with a solenoid valve, which is used to control the flow of water in the water supply pipe.
[0014] According to some embodiments of the present invention, the extruder includes a barrel, a screw, and a second drive motor. The screw and the barrel are coaxially arranged, and the screw is located inside the barrel. The second drive motor is used to drive the screw to rotate around its own axis. The upper side wall of the barrel is provided with a feed pipe.
[0015] According to some embodiments of the present invention, the outer peripheral wall of the barrel is provided with a plurality of annular heating wires, and the plurality of annular heating wires are spaced apart along the axial direction of the barrel.
[0016] According to some embodiments of the present invention, the plastic recycling ring cutting device further includes a material tank, and a material extraction pipe is provided between the material tank and the recycling bin. The material extraction pipe is equipped with a pump, which is used to pump the plastic particles located in the recycling bin to the material tank through the material extraction pipe.
[0017] According to some embodiments of the present invention, the recycling bin is provided with a drain plate, which is located below the vibrating screen, and the drain plate is provided with multiple water passage holes.
[0018] The plastic recycling ring-cutting device according to the embodiments of this utility model has at least the following technical effects:
[0019] 1. The extruder heats and melts the recycled waste plastic and extrudes it into strips, which are then discharged from the extruder. The water supply unit supplies water to the nozzles, and the high-pressure water emitted from the nozzles cuts the strip material transported from the extruder, continuously cutting the strip material into plastic granules. The plastic granules then fall into the vibrating screen of the recycling bin through the feed pipe.
[0020] 2. The vibrating screen can screen plastic particles. When the vibrating motor is started, the vibrating screen vibrates. Plastic particles that meet the diameter requirements fall down to the bottom of the recycling bin through the vibrating screen.
[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0022] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0023] Figure 1 This is a schematic diagram of the structure of a plastic recycling ring-cutting device according to some embodiments of this utility model;
[0024] Figure 2 This is a partial structural schematic diagram of a plastic recycling ring-cutting device according to some embodiments of the present invention;
[0025] Figure 3 This is a partial structural schematic diagram of a plastic recycling ring-cutting device according to some embodiments of the present invention;
[0026] Figure 4 This is a partial structural schematic diagram of a plastic recycling ring-cutting device according to some embodiments of the present invention;
[0027] Figure 5 This is a partial structural schematic diagram of a plastic recycling ring-cutting device according to some embodiments of this utility model.
[0028] Icon labels:
[0029] Frame 100; Material tank 110; Material extraction pipe 120; Pump 130; Long strip material 140;
[0030] Extruder 200; Barrel 210; Second drive motor 220; Feed pipe 230; Annular heating wire 240; Discharge hole 250; Filter 260; Left end face 270;
[0031] Cutting assembly 300; cutting box 310; nozzle 320; water outlet branch pipe 321; water supply component 330; water supply pipe 331; rotary joint 332; water outlet pipe 333; first drive motor 340; synchronous belt 350; solenoid valve 360; feeding pipe 370;
[0032] Recycling component 400; recycling bin 410; vibrating motor 420; vibrating screen 430; screen hole 431; drain plate 440; water passage hole 441; drain pipe 450; shock absorber spring 460. Detailed Implementation
[0033] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0034] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. 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.
[0035] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0036] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0037] The embodiments of this utility model will be further described below with reference to the accompanying drawings.
[0038] According to some embodiments of this utility model, refer to Figures 1 to 5The plastic recycling ring cutting device includes a frame 100, an extruder 200, a cutting assembly 300, and a recycling assembly 400. The extruder 200 is mounted on the frame 100, and its left end face 270 has a discharge port 250. The cutting assembly 300 is mounted on the frame 100 and includes a cutting box 310, a nozzle 320, and a water supply component 330. The left end of the extruder 200 is inserted into the cutting box 310, the water supply component 330 passes through the cutting box 310, the nozzle 320 is located inside the cutting box 310, and is positioned to the left of the extruder 200. The nozzle 320 is connected to the water outlet of the water supply component 330 and is used to inject water jets to cut long strips of material 140 to form plastic granules. A feed pipe 370 is provided on the lower side of the cutting box 310. The recycling assembly 400 includes a recycling bin 410 and a vibrating motor 420. The recycling bin 410 contains a vibrating screen 430 with screen holes 431, allowing plastic granules of the required diameter to fall through and reach the bottom of the recycling bin 410. The vibrating screen 430 receives plastic granules from the feed pipe 370. The vibrating motor 420 is mounted on the recycling bin 410.
[0039] The extruder 200 heats and melts recycled waste plastic and extrudes it into long strips 140. The strips 140 are discharged from the extruder 200. A water supply unit 330 supplies water to the nozzle 320, continuously extruding the strips 140 from the extruder 200. The high-pressure water emitted from the nozzle 320 cuts the strips 140 from the extruder 200, continuously cutting them into plastic granules. The plastic granules then fall through the feed pipe 370 into the vibrating screen 430 of the recycling bin 410. The vibration motor 420 starts, vibrating the vibrating screen 430. Plastic granules that meet the diameter requirements fall through the screen holes 431 of the vibrating screen 430 to the bottom of the recycling bin 410, thus producing small-diameter finished plastic granules. Simultaneously, the water sprayed through the nozzle 320 also cools the plastic granules, improving product quality and preventing the granules from sticking together due to heat.
[0040] Preferably, the cutting box 310 is slidably connected to the frame 100 in the left-right direction, and the nozzle 320 is coaxially arranged with the extruder 200. The cutting box 310 can drive the nozzle 320 to move in the left-right direction, thereby changing the distance between the nozzle 320 and the left end of the extruder 200, and thus changing the length of the cut strip material 140, thereby adapting to various production needs. The frame 100 is provided with a slide rail extending in the left-right direction, and a slider is fixedly connected to the bottom of the cutting box 310. The slider is slidably connected to the slide rail in the left-right direction. Preferably, the extruder 200 is provided with a filter 260. The molten plastic inside the extruder 200 passes through the filter 260 to filter impurities, and then is extruded through the discharge hole 250 of the extruder 200. The filter 260 is a melt filter 260, which is composed of stainless steel wire mesh with various pore sizes. The stainless steel wire mesh is arranged in the left-right direction, and the pore size gradually decreases from right to left, used to intercept unmelted plastic, metal shavings, sand, paper, etc.
[0041] According to some embodiments of this utility model, refer to Figure 3 The outer peripheral wall of the nozzle 320 is provided with multiple water outlet branch pipes 321, which are distributed along the circumference of the nozzle 320.
[0042] According to some embodiments of this utility model, refer to Figure 2 The water supply component 330 includes a water supply pipe 331, a rotary joint 332, and a water outlet pipe 333. The water supply pipe 331 extends vertically, and the water outlet pipe 333 extends horizontally. The water outlet pipe 333 passes through and is rotatably connected to the cutting box 310. A section of the water outlet pipe 333 is inserted into the cutting box 310. The right end of the water outlet pipe 333 is connected to the nozzle 320, and the left end of the water outlet pipe 333 is rotatably connected to the rotary joint 332. The lower end of the water supply pipe 331 is fixedly connected to the rotary joint 332. The water outlet pipe 333 can rotate around its own axis, thereby driving the nozzle 320 to rotate. When the water outlet pipe 333 rotates around itself, the water supply pipe 331 is not affected by the rotation of the water outlet pipe 333 relative to the rotary joint 332.
[0043] Preferred, refer to Figure 2 The water supply component 330 also includes a first drive motor 340, a first synchronous pulley, a second synchronous pulley, and a synchronous belt 350. The drive end of the first drive motor 340 is fixedly connected to the first synchronous pulley. The second synchronous pulley is sleeved and fixedly connected to the water outlet pipe 333. The synchronous belt 350 is connected to both the first and second synchronous pulleys. The first drive motor 340 drives the first synchronous pulley to rotate, which in turn drives the second synchronous pulley to rotate via the synchronous belt 350, thereby driving the water outlet pipe 333 to rotate.
[0044] Understandably, the rotation of the water outlet pipe 333 drives the nozzle 320 and the water outlet branch pipe 321 to rotate. The high-pressure water jet emitted by the nozzle 320 through the water outlet branch pipe 321 also rotates. The high-pressure water jet rotates rapidly, similar to the blades of a fan, and cuts the long strip of material 140 during the rotation.
[0045] According to some embodiments of this utility model, refer to Figure 2 The water supply pipe 331 is equipped with a solenoid valve 360, which is used to control the flow of water in the water supply pipe 331. It can be understood that the solenoid valve 360 controls the opening and closing of the water supply pipe 331, thereby intermittently controlling the frequency of the high-pressure water jet sprayed from the outlet branch pipe 321, as described above. Figure 3 In this embodiment, six water outlet branches 321 are respectively aligned with the six discharge holes 250 of the extruder 200. The long strip material 140 is discharged through the discharge holes 250. The water outlet branches 321 intermittently spray high-pressure water to cut and granulate the long strip material 140 to form plastic granules.
[0046] It can be understood that the operator can choose to control the solenoid valve 360 to intermittently spray high-pressure water for cutting, or to control the nozzle 320 to rotate via the first drive motor 340 for cutting.
[0047] According to some embodiments of this utility model, refer to Figure 1 The extruder 200 includes a barrel 210, a screw, and a second drive motor 220. The screw and barrel 210 are coaxially arranged, with the screw located inside the barrel 210. The discharge port 250 of the barrel 210 is located on the left end face 270 of the barrel 210, and a feed pipe 230 is provided on the upper side wall of the barrel 210. Multiple annular heating wires 240 are provided on the outer peripheral wall of the barrel 210, and these annular heating wires 240 are spaced apart along the axial direction of the barrel 210 to uniformly heat the barrel 210.
[0048] Waste plastic is fed into the barrel 210 through the feed pipe 230. The annular heating wire 240 heats the barrel 210, thereby transferring heat to the plastic. The plastic melts when heated. The second drive motor 220 drives the screw to rotate around its own axis, thereby moving the material inside the barrel 210 from right to left and extruding it into a long strip of material 140.
[0049] According to some embodiments of this utility model, refer to Figure 4 The plastic recycling ring cutting device also includes a material tank 110. A material extraction pipe 120 is provided between the material tank 110 and the recycling bin 410. The material extraction pipe 120 is equipped with a pump 130. The pump 130 is used to pump the plastic particles located in the recycling bin 410 to the material tank 110 through the material extraction pipe 120, so that the plastic particles are temporarily stored on the material tank 110.
[0050] According to some embodiments of this utility model, refer to Figure 5 The recycling bin 410 is equipped with a drain plate 440 located below the vibrating screen 430. The drain plate 440 has multiple water passage holes 441. Plastic particles fall through the screen holes 431 of the vibrating screen 430 onto the drain plate 440. The water carried by the plastic particles, as well as the water flowing from the cutting box 310, flows through the water passage holes 441 to the bottom of the recycling bin 410 under the influence of gravity. A drain pipe 450 is located at the lower end of the recycling bin 410, through which water is discharged. A shock-absorbing spring 460 is connected to the lower end of the recycling bin 410, and the lower end of the shock-absorbing spring 460 is connected to the ground. The shock-absorbing spring 460 supports the recycling bin 410. The vibrating motor 420 is located to the right of the damping spring 460, and the vibrating screen 430 is located to the right of the damping spring 460. The vibrating motor 420 can vibrate the vibrating screen 430 to ensure that the plastic particles can pass through the screen holes 431, while the damping spring 460 can reduce the vibration on the left side of the recycling box 410, so that the pump 130 can work with the material extraction pipe 120 to extract the plastic particles on the drain plate 440 into the material tank 110.
[0051] In this specification, the reference to the term "some embodiments" means that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0052] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.
Claims
1. A plastic recycling ring-cutting device, characterized in that, include: Rack (100); An extruder (200) is mounted on the frame (100), and the left end face (270) of the extruder (200) is provided with a discharge hole (250); A cutting assembly (300) is mounted on the frame (100). The cutting assembly (300) includes a cutting box (310), a nozzle (320), and a water supply component (330). The left end of the extruder (200) is inserted into the cutting box (310). The water supply component (330) passes through the cutting box (310). The nozzle (320) is located inside the cutting box (310) and is located on the left side of the extruder (200). The nozzle (320) is connected to the water outlet end of the water supply component (330). The nozzle (320) is used to inject water jets to cut long strips of material (140) to form plastic granules. A feed pipe (370) is provided on the lower side of the cutting box (310). The recycling assembly (400) includes a recycling bin (410) and a vibrating motor (420). The recycling bin (410) is equipped with a vibrating screen (430) for receiving plastic granules from the feed pipe (370). The vibrating motor (420) is mounted on the recycling bin (410).
2. The plastic recycling ring-cutting device according to claim 1, characterized in that, The cutting box (310) is slidably connected to the frame (100) in the left-right direction, and the cutting box (310) can drive the nozzle (320) to move in the left-right direction.
3. The plastic recycling ring-cutting device according to claim 1, characterized in that, The nozzle (320) has a plurality of water outlet branches (321) on its outer peripheral wall, and the plurality of water outlet branches (321) are distributed along the circumference of the nozzle (320).
4. The plastic recycling ring-cutting device according to claim 3, characterized in that, The water supply component (330) includes a water supply pipe (331), a rotary joint (332), and a water outlet pipe (333). The water outlet pipe (333) is inserted through and rotatably connected to the cutting box (310). The right end of the water outlet pipe (333) is connected to the nozzle (320), and the left end of the water outlet pipe (333) is rotatably connected to the rotary joint (332). The lower end of the water supply pipe (331) is fixedly connected to the rotary joint (332). The water outlet pipe (333) can rotate around its own axis to drive the nozzle (320) to rotate.
5. The plastic recycling ring-cutting device according to claim 4, characterized in that, The water supply component (330) further includes a first drive motor (340), a first synchronous pulley, a second synchronous pulley, and a synchronous belt (350). The drive end of the first drive motor (340) is fixedly connected to the first synchronous pulley. The second synchronous pulley is sleeved and fixedly connected to the water outlet pipe (333). The synchronous belt (350) is connected to the first synchronous pulley and the second synchronous pulley respectively.
6. The plastic recycling ring-cutting device according to claim 4, characterized in that, The water supply pipe (331) is equipped with a solenoid valve (360), which is used to control the flow of water in the water supply pipe (331).
7. The plastic recycling ring-cutting device according to claim 1, characterized in that, The extruder (200) includes a barrel (210), a screw, and a second drive motor (220). The screw and the barrel (210) are coaxially arranged. The screw is located inside the barrel (210). The second drive motor (220) is used to drive the screw to rotate around its own axis. The upper side wall of the barrel (210) is provided with a feed pipe (230).
8. The plastic recycling ring-cutting device according to claim 7, characterized in that, The outer peripheral wall of the barrel (210) is provided with a plurality of annular heating wires (240), and the plurality of annular heating wires (240) are spaced apart along the axial direction of the barrel (210).
9. The plastic recycling ring-cutting device according to claim 1, characterized in that, The plastic recycling ring cutting device also includes a material tank (110), and a material extraction pipe (120) is provided between the material tank (110) and the recycling box (410). The material extraction pipe (120) is equipped with a pump (130), which is used to pump the plastic particles located in the recycling box (410) to the material tank (110) through the material extraction pipe (120).
10. The plastic recycling ring-cutting device according to claim 1, characterized in that, The recycling bin (410) is equipped with a drain plate (440), which is located below the vibrating screen (430). The drain plate (440) has multiple water passage holes (441).