An automobile plastic accessory waste recycling device
By introducing screening and lifting components into the automotive plastic parts waste recycling device, and utilizing a combination of vibrating screens and magnetic pad screens, efficient particle size classification and automated secondary crushing of the crushed materials are achieved. This solves the problems of large particle residue and low automation in existing technologies, and improves crushing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GANZHOU QITENG RENEWABLE RESOURCES TECHNOLOGY DEVELOPMENT CO LTD
- Filing Date
- 2025-08-24
- Publication Date
- 2026-07-21
AI Technical Summary
In existing technologies, automotive plastic parts waste recycling devices are difficult to completely crush plastic parts during the crushing process, and lack screening for large particles and automated secondary crushing structures, resulting in low crushing efficiency.
A device comprising a crushing box, a screening component, and a lifting component was designed. By combining a vibrating screen and a magnetic pad screen, the crushed material is classified by particle size. Larger particles are then fed back to the crushing wheel for secondary shearing and crushing using a spiral lifting rod, forming a closed-loop processing flow.
It achieves efficient particle size classification and automated secondary crushing of crushed materials, improving crushing efficiency, reducing large particle residue, enhancing automation, and reducing the need for manual operation.
Smart Images

Figure CN224527703U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive plastic parts waste recycling devices, specifically an automotive plastic parts waste recycling device. Background Technology
[0002] Automotive plastics are made from specialized modified plastics, selected based on different needs and specially treated. They offer numerous advantages, including lightweight, good aesthetic appeal, excellent physical and chemical properties, ease of processing and molding, and energy savings. Therefore, automotive plastics are widely used in manufacturing exterior trim parts and functional structural components. However, with the increasing use of plastics, the amount of waste plastics generated when cars are scrapped also increases. Indiscriminate disposal of used automotive plastic parts causes white pollution, similar to plastic bags. However, unlike plastic bags, the recycling value of used automotive plastic parts far exceeds that of plastic bags. Therefore, many manufacturers actively collect large quantities of used automotive plastic parts for recycling and reprocessing into new automotive plastic parts, thereby reducing plastic pollution.
[0003] In the prior art, such as in publication number CN218365932U, a recycling device for automotive plastic parts waste is disclosed. It includes a housing, with a feed hopper fixedly installed at the top of the housing. A primary crushing mechanism is installed inside the housing. A connecting frame is fixedly installed below the housing. Inside the connecting frame, from top to bottom, a first baffle, a second baffle, and a secondary crushing mechanism are sequentially arranged. A connecting bottom frame is fixedly installed below the connecting frame. A discharge plate is obliquely fixedly installed inside the connecting bottom frame. A discharge port is opened on the right side of the connecting bottom frame. A receiving frame is provided inside the frame. This utility model, through the setting of a primary crushing mechanism and a secondary crushing mechanism, achieves a two-stage crushing structure, transforming the formed automotive plastic parts waste into small, broken particles. This ensures thorough crushing of the automotive plastic parts waste, resulting in high working efficiency and meeting the needs of practical recycling processing, thus possessing high practicality.
[0004] Although the aforementioned patent increases the crushing rate by setting up multiple crushing structures, it is still difficult to avoid a small number of plastic parts not being completely crushed. It lacks a structure to screen larger plastic particles and cannot automatically perform secondary crushing on the screened larger plastic particles. Therefore, in order to address the above problems, an automotive plastic parts waste recycling device is proposed. Utility Model Content
[0005] To address the shortcomings of existing technologies, such as the incomplete crushing of some plastic parts, the lack of a structure for screening larger plastic particles, and the inability to automatically perform secondary crushing of the screened larger plastic particles, this invention proposes a waste recycling device for automotive plastic parts.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The automotive plastic parts waste recycling device of this utility model includes a crushing box. A motor is fixedly connected to the back of the crushing box in a rectangular array. The output end of the motor passes through the inside of the crushing box and is fixedly connected to the crushing wheel. A discharge port is opened on the side of the crushing box and the discharge port is connected to a conical guide groove. A slightly inclined screening component is fixedly connected to the bottom surface of the crushing box. The conical guide groove is connected through to a lifting component. The bottom surface of the screening component is connected through to a feeding pipe and its bottom end is fixedly connected to a support frame. The screening assembly includes a surrounding plate fixedly connected to the bottom of the crushing box. The inner sidewall of the surrounding plate is fixedly connected to a sleeve in an axisymmetric manner. A spring is sleeved inside the sleeve. One end of the spring is connected to a vibration motor. The vibration motor is fixedly connected to a screen frame. A magnetic pad is provided on the top surface of the screen frame. The magnetic pad magnetically connects to the screen mesh. The screen mesh is flush with the screen frame and the discharge port and is set at a slight inclination. The gap between the surrounding plate and the screen frame is filled by a flexible pad. The lifting assembly includes a lifting pipe that runs through a conical guide trough. The bottom end of the lifting pipe is fixedly connected to a device cylinder. A drive motor is sleeved inside the device cylinder. The output end of the drive motor is connected to a spiral lifting rod. A discharge port is opened at the top of the lifting pipe and the discharge port is connected to an inclined guide pipe.
[0007] Preferably, the magnetic pad can be detached and replaced with screens of different aperture sizes to adapt to the screening needs of crushed materials of different particle sizes.
[0008] Preferably, the end of the feed pipe extends above the gap between the two crushing wheels inside the crushing box so that the defective crushed material falls directly into the biting area of the crushing wheels.
[0009] Preferably, the motor is configured as two motors, and the crushing wheels at their output ends rotate in opposite directions to form a shearing and crushing action.
[0010] Preferably, the sleeve is arranged axially symmetrically along the inner sidewall of the enclosure so that the screen frame vibrates uniformly under the drive of the vibrating motor.
[0011] Preferably, the pitch of the spiral lifting rod gradually decreases from bottom to top to adapt to the changes in the conveying height of the crushed material in the lifting pipe.
[0012] Preferably, the vibrating motor and the drive motor are driven synchronously to coordinate the operation rhythm of crushed material screening and cyclic lifting.
[0013] Preferably, the micro-tilt angle of the screen is set to 3°-8° to ensure that substandard fragments slide into the conical guide trough along the inclined surface.
[0014] The advantages of this utility model are: 1. This utility model uses a vibrating motor in the screening component to drive the screen frame to vibrate the screen fixed by the magnetic pad at high frequency. By utilizing the vibration screening of the slightly inclined screen and the sealing and buffering effect of the flexible pad, the crushed material can be quickly classified by particle size. The qualified material is discharged through the feed pipe, while the unqualified material slides into the conical guide chute along the inclined surface of the screen. This effectively solves the problem of large particles remaining due to the lack of screening structure in the prior art. In addition, the magnetic pad can be replaced with screens of different aperture sizes to adapt to different particle size accuracy requirements. 2. This utility model uses a spiral lifting rod in the lifting assembly to lift large particles of crushed material in the conical guide trough to the guide pipe. The end of the guide pipe extends above the meshing gap of the crushing wheels. With the help of the drive motor, the two crushing wheels rotate in opposite directions to form shearing and crushing, realizing automatic recycling and secondary crushing of unqualified crushed material. This avoids manual return operation, improves crushing efficiency and automation, and precisely solves the core defect of existing technology that cannot automatically process substandard crushed material. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the screening component structure of this utility model; Figure 3 This is a schematic diagram of the lifting component structure of this utility model; Figure 4 This is a schematic diagram of the disassembled structure of this utility model.
[0017] In the diagram: 1. Crushing box; 2. Motor; 3. Crushing wheel; 4. Conical guide chute; 5. Lifting assembly; 51. Lifting pipe; 52. Equipment cylinder; 53. Drive motor; 54. Spiral lifting rod; 55. Guide pipe; 6. Screening assembly; 61. Enclosure plate; 62. Sleeve; 63. Spring; 64. Vibrating motor; 65. Screen frame; 66. Magnetic pad; 67. Screen mesh; 68. Flexible pad; 7. Feed pipe; 8. Support frame. Detailed Implementation
[0018] 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 scope of protection of the present utility model.
[0019] Please see Figures 1-4 As shown, a recycling device for automotive plastic parts includes a crushing box 1. A motor 2 is fixedly connected in a rectangular array to the back of the crushing box 1. The output end of the motor 2 extends into the interior of the crushing box 1 and is fixedly connected to a crushing wheel 3. A discharge port is provided on the side of the crushing box 1, and this discharge port is connected to a conical guide chute 4. A slightly inclined screening component 6 is fixedly connected to the bottom surface of the crushing box 1. A lifting component 5 is connected through the conical guide chute 4. A feeding pipe 7 is connected through the bottom surface of the screening component 6, and a support is fixedly connected to its bottom end. The frame 8; the screening component 6 includes a surrounding plate 61 fixedly connected to the bottom surface of the crushing box 1. The inner side wall of the surrounding plate 61 is fixedly connected to a sleeve 62 in an axisymmetric manner. A spring 63 is sleeved inside the sleeve 62. One end of the spring 63 is connected to a vibration motor 64. The vibration motor 64 is fixedly connected to a screen frame 65. A magnetic pad 66 is provided on the top surface of the screen frame 65. The magnetic pad 66 magnetically connects to the screen mesh 67. The screen mesh 67 is flush with the screen frame 65 and the discharge port and is set at a slight inclination. The gap between the surrounding plate 61 and the screen frame 65 is filled by a flexible pad 68. During operation, the screening component 6 drives the screen frame 65 via the vibration motor 64, which in turn drives the screen 67 fixed by the magnetic pad 66 to vibrate at high frequency. The crushed plastic fragments fall onto the surface of the screen 67, which is slightly inclined at 3°-8°. Qualified fragments are discharged through the feed pipe 7 after being screened by vibration, while substandard fragments slide along the inclined surface of the screen 67 into the conical guide chute 4 on the side of the crushing box 1. The axially symmetrical arrangement of the sleeve 62 and the spring 63 ensures that the screen frame 65 vibrates uniformly when subjected to the vibration motor 64. The flexible pad 68 seals the gap between the enclosure plate 61 and the screen frame 65 to prevent fragment leakage. At the same time, the magnetic pad 66 fixes the detachable screen 67 with magnetic attraction. The operator can replace the screen 67 with different aperture sizes according to the particle size requirements to optimize the screening accuracy.
[0020] Furthermore, the lifting component 5 includes a lifting pipe 51 that is connected through the conical guide trough 4. The bottom end of the lifting pipe 51 is fixedly connected to the equipment cylinder 52. The equipment cylinder 52 is fitted with a drive motor 53. The output end of the drive motor 53 is connected to a spiral lifting rod 54. The top end of the lifting pipe 51 has a discharge port and the discharge port is connected to an inclined guide pipe 55. During operation, the lifting assembly 5 uses a spiral lifting rod 54 to vertically transport the substandard crushed material in the conical guide chute 4 along the lifting pipe 51 to the guide pipe 55. The end of the guide pipe 55 extends above the meshing gap between the two opposing rotating crushing wheels 3. After being guided by the inclined flow of the guide pipe 55, the crushed material falls directly into the shearing area of the crushing wheel 3 for secondary crushing. The pitch of the spiral lifting rod 54 gradually decreases from bottom to top to adapt to the conveying resistance of the crushed material at different heights in the lifting pipe 51. The drive motor 53 and the vibration motor 64 operate synchronously to coordinate the screening rate and lifting efficiency, realizing an automated cyclic crushing process for substandard crushed material.
[0021] Furthermore, the magnetic pad 66 can be detached and replaced with screens 67 of different aperture sizes to adapt to the screening needs of crushed materials of different particle sizes. During operation, the magnetic pad 66 fixes the detachable screen 67 with magnetic attraction. The operator selects the appropriate screen 67 according to the required particle size and attaches it to the surface of the magnetic pad 66. During the screening process, the vibration motor 64 drives the screen frame 65 to vibrate the screen 67. Unqualified particles are intercepted and slide into the conical guide chute 4 along the inclined surface of the screen 67. This design enables flexible screening of particles of different sizes by quickly replacing the screen 67 with magnetic attraction, avoiding the cumbersome operation of fixing the screen with bolts in the traditional method, significantly improving screening efficiency and reducing equipment downtime.
[0022] Furthermore, the motor 2 is configured as two motors, and the crushing wheels 3 at their output ends rotate in opposite directions to form a shearing crushing action; During operation, two motors 2 are configured to drive two crushing wheels 3 to rotate in opposite directions. After the crushed material enters the crushing box 1, it is torn and crushed by the reverse shearing force of the crushing wheels 3. The biting gap of the crushing wheels 3 is aligned with the material drop position at the end of the guide pipe 55, ensuring that the large particles of crushed material raised in the circulation fall directly into the shearing area of the crushing wheels 3. This implementation method improves the primary crushing rate of the crushed material through bidirectional shearing crushing, reduces the residue of large particles, and enhances the crushing effect by utilizing the biting force generated by the opposite rotation, thereby reducing the risk of material jamming in the equipment and extending the service life of the crushing wheels 3.
[0023] Furthermore, the micro-tilt angle of the screen 67 is set to 3°-8° to ensure that the substandard fragments slide into the conical guide chute 4 along the inclined surface; During operation, the micro-tilt angle of the screen 67 is set to 3°-8°. When the vibrating motor 64 drives the screen frame 65, the substandard crushed material slides along the surface of the screen 67 towards the conical guide chute 4 under the dual action of vibration and tilting, while the qualified crushed material penetrates the screen 67 and is discharged through the discharge pipe 7. This angle range design ensures that the crushed material slides naturally during the vibrating screening process, avoiding the problem of crushed material accumulation due to too small an angle or insufficient screening area due to too large an angle. It effectively improves screening efficiency and the guiding accuracy of substandard crushed material, ensuring the continuity of the automated cyclic crushing process.
[0024] Working principle: After the automotive plastic parts enter the crushing chamber 1, they are sheared and crushed by two opposing rotating crushing wheels 3 driven by motors 2 arranged in a rectangular array. The crushed material falls onto the surface of the slightly inclined screen 67 of the screening component 6. The vibrating motor 64 drives the screen frame 65 and the screen 67 fixed by the magnetic pad 66 to vibrate at high frequency through the elastic support of the spring 63 in the sleeve 62. Qualified crushed material passes through the screen 67 and is discharged through the feed pipe 7. Unqualified crushed material slides into the conical guide chute 4 on the side of the crushing chamber 1 due to the 3°-8° inclination angle and vibration of the screen 67. The spiral lifting rod 54 in the lifting component 5... Driven by the drive motor 53, the crushed material in the conical guide trough 4 is vertically conveyed along the lifting pipe 51 to the guide pipe 55. The end of the guide pipe 55 extends above the meshing gap of the two crushing wheels 3, and the crushed material falls back into the crushing wheels 3 for secondary shearing and crushing. The pitch of the spiral lifting rod 54 gradually decreases from bottom to top to adapt to the crushed material lifting resistance. The synchronous drive of the vibrating motor 64 and the drive motor 53 ensures the continuity of screening and circulating crushing. The flexible pad 68 seals the gap between the enclosure plate 61 and the screen frame 65 to prevent crushed material leakage, forming a closed-loop processing flow of crushing-screening-circulating lifting.
[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, or similar improvements made within the theoretical and principle content of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A recycling device for automotive plastic parts waste, characterized in that: The device includes a crushing box (1), on the back of which a motor (2) is fixedly connected in a rectangular array. The output end of the motor (2) extends into the inside of the crushing box (1) and is fixedly connected to a crushing wheel (3). The side of the crushing box (1) has a discharge port connected to a conical guide trough (4). The bottom surface of the crushing box (1) is fixedly connected to a slightly inclined screening component (6). The conical guide trough (4) is connected through to a lifting component (5). The bottom surface of the screening component (6) is connected through to a feeding pipe (7) and its bottom end is fixedly connected to a support frame (8). The screening component (6) includes a surrounding plate (61) fixedly connected to the bottom surface of the crushing box (1). The inner side wall of the surrounding plate (61) is fixedly connected to a sleeve (62) in an axisymmetric manner. A spring (63) is sleeved inside the sleeve (62). One end of the spring (63) is connected to a vibration motor (64). The vibration motor (64) is fixedly connected to a screen frame (65). A magnetic pad (66) is provided on the top surface of the screen frame (65). The magnetic pad (66) magnetically connects to the screen mesh (67). The screen mesh (67) is flush with the screen frame (65) and the discharge port and is set at a slight inclination. The gap between the surrounding plate (61) and the screen frame (65) is filled by a flexible pad (68). The lifting assembly (5) includes a lifting pipe (51) that passes through and connects to a conical guide trough (4). The bottom end of the lifting pipe (51) is fixedly connected to a device cylinder (52). A drive motor (53) is sleeved inside the device cylinder (52). The output end of the drive motor (53) is connected to a spiral lifting rod (54). A material drop port is opened at the top end of the lifting pipe (51) and the material drop port is connected to an inclined guide pipe (55).
2. The automotive plastic parts waste recycling device according to claim 1, characterized in that: The magnetic pad (66) can be detached and replaced with screens (67) of different aperture sizes to adapt to the screening needs of crushed materials of different particle sizes.
3. The automotive plastic parts waste recycling device according to claim 1, characterized in that: The end of the feed tube (55) extends above the gap between the two crushing wheels (3) inside the crushing box (1) so that the unqualified crushed material falls directly into the biting area of the crushing wheel (3).
4. The automotive plastic parts waste recycling device according to claim 1, characterized in that: The motor (2) is configured as two, and the crushing wheels (3) at its output end rotate in opposite directions to form a shearing crushing action.
5. The automotive plastic parts waste recycling device according to claim 1, characterized in that: The axially symmetrical arrangement of the sleeve (62) along the inner sidewall of the enclosure (61) causes the screen frame (65) to vibrate uniformly under the drive of the vibrating motor (64).
6. The automotive plastic parts waste recycling device according to claim 1, characterized in that: The pitch of the spiral lifting rod (54) gradually decreases from bottom to top to adapt to the change in conveying height of the crushed material in the lifting pipe (51).
7. The automotive plastic parts waste recycling device according to claim 1, characterized in that: The vibration motor (64) and the drive motor (53) are driven synchronously to coordinate the operation rhythm of crushed material screening and cyclic lifting.
8. The automotive plastic parts waste recycling device according to claim 1, characterized in that: The micro-tilt angle of the screen (67) is set to 3°-8° to ensure that the substandard fragments slide into the conical guide trough (4) along the inclined surface.