Plastic particle grinding machine
By introducing an arch-breaking component and magnetic adsorption drive into the plastic particle grinding mill, the problem of material discharge port blockage was solved, achieving smooth and efficient material discharge.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU JIUYAO NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-05-12
AI Technical Summary
Existing plastic particle grinding mills often cause plastic powder to accumulate after grinding, leading to blockage at the feed inlet and making it difficult to discharge efficiently and completely.
The system employs a plastic particle arch-breaking component and a drive component. Through the movement of the arch-breaking rod and the magnetic attraction force, combined with the design of the guide table, it achieves sweeping and arch-breaking within the hopper, preventing powder accumulation.
It effectively breaks up bridging within the hopper, ensuring smooth material discharge and achieving efficient and complete removal of plastic particles.
Smart Images

Figure CN224226223U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of abrasive machine technology, specifically relating to a plastic particle abrasive machine. Background Technology
[0002] A plastic particle grinding mill is a device specifically designed for the fine processing of plastic particles. It mainly processes plastic raw materials through grinding or polishing processes to achieve precise control of particle size or surface modification.
[0003] After the existing plastic particle grinding mill completes the plastic grinding, the plastic powder remains and accumulates at the discharge port. The plastic powder is prone to bridging, which leads to blockage of the discharge port and makes it difficult to discharge the plastic powder efficiently and fully.
[0004] Therefore, a plastic particle grinding machine is proposed. Summary of the Invention
[0005] This invention provides a plastic particle grinding machine, the purpose of which is to solve the problems mentioned above.
[0006] This utility model provides a plastic particle grinding mill, including a grinding mill body; a feeding hopper disposed at the bottom of the grinding mill body; a plastic particle anti-bridging assembly and a driving assembly disposed on the feeding hopper; wherein, the plastic particle anti-bridging assembly includes: an inner sliding ring sliding on the inner sidewall of the feeding hopper; a support frame disposed at the top of the inner sliding ring; an anti-bridging rod rotatably on the inner sidewall of the support frame; a torsion spring disposed between the outer sidewall of the anti-bridging rod and the inner sidewall of the support frame; a limiting block disposed on the inner sidewall of the support frame near the lower side of the anti-bridging rod; a movable guide platform disposed at one end of the top of the anti-bridging rod; and fixed guide platforms axially spaced at equal intervals on the inner sidewall of the feeding hopper.
[0007] Furthermore, the drive assembly includes: an outer rotating ring sliding on the outer side wall of the hopper; a strong magnetic block embedded in the inner side wall of the outer rotating ring; an iron block disposed on the outer side wall of the inner sliding ring; a plurality of gear teeth axially and equally spaced on the outer side wall of the outer rotating ring; a motor disposed on the outer side wall of the hopper; and a gear disposed at the output end of the motor.
[0008] Furthermore, the cross-section of the movable guide platform is a right-angled trapezoid, and the top of the movable guide platform is an inclined surface;
[0009] By adopting the above technical solution, the guiding ability formed by the inclined surface on the moving guide platform can be used to drive the moving guide platform to move, thereby causing the arch-breaking rod to move.
[0010] Furthermore, the cross-section of the fixed guide platform is an isosceles triangle, and the isosceles surface of the fixed guide platform matches the inclined surface on the movable guide platform.
[0011] By adopting the above technical solution, and through the cooperation of the movable guide table and the fixed guide table, the movable guide table and the fixed guide table can generate relative displacement when the movable guide table moves axially.
[0012] Furthermore, the strong magnetic block and the iron block are on the same horizontal axis, and the strong magnetic block and the iron block are connected by magnetic attraction;
[0013] By adopting the above technical solution, magnetic attraction force is used to make the strong magnetic block attract the iron block.
[0014] Furthermore, the gear and the gear teeth are meshed together;
[0015] By adopting the above technical solution, the beneficial effects of this utility model are as follows:
[0016] This invention utilizes a bridging rod that moves horizontally on one side and vertically on the other to thoroughly sweep the internal space of the hopper. This not only breaks up the bridging phenomenon formed by powder in the hopper, preventing powder accumulation and ensuring smooth feeding, but also sweeps the hopper's interior in all directions, facilitating efficient and complete feeding of plastic particles.
[0017] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description
[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0019] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;
[0020] Figure 2 This is a schematic diagram of the hopper structure according to an embodiment of the present utility model;
[0021] Figure 3 This is an embodiment of the present utility model. Figure 2 Enlarged diagram of point A in the diagram;
[0022] Figure 4 This is a schematic diagram of the plastic particle arch-breaking component structure according to an embodiment of the present invention;
[0023] Figure 5 This is a schematic diagram of the drive component structure according to an embodiment of the present utility model;
[0024] Reference numerals in the attached drawings: 1. Abrasive mill body; 2. Feed hopper; 3. Plastic particle arch-breaking assembly; 31. Inner sliding ring; 32. Support frame; 33. Arch-breaking rod; 34. Torsion spring; 35. Limiting block; 36. Moving guide table; 37. Fixed guide table; 4. Drive assembly; 41. Outer rotating ring; 42. Strong magnetic block; 43. Iron block; 44. Gear teeth; 45. Motor; 46. Gear. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages 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. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0026] Reference Figure 1-5 This utility model provides a plastic particle grinding mill, including a grinding mill body 1. A feeding hopper 2 is bolted to the feeding end of the grinding mill body 1. An inner sliding ring 31 of a plastic particle anti-bridging assembly 3 is slidably connected in an annular shape to the inner wall of one side of the feeding hopper 2. A support frame 32 is provided at the top of the inner sliding ring 31 near the inner side of the feeding hopper 2. An anti-bridging rod 33 is rotatably connected to the inner wall of the support frame 32. A torsion spring 34 is provided at the connection between the anti-bridging rod 33 and the support frame 32. One end of the torsion spring 34 is embedded in the outer wall of the anti-bridging rod 33, and the other end of the torsion spring 34 is embedded in the inner wall of the support frame 32. A limit block 35 is provided on the inner wall of the support frame 32 near the lower side of the anti-bridging rod 33. A movable guide platform 36 is provided at the bottom end. The cross-section of the movable guide platform 36 is a right trapezoid, and the top of the movable guide platform 36 is an inclined surface. Utilizing the guiding ability formed by the inclined surface on the movable guide platform 36, the subsequent guiding force can be used to push the movable guide platform 36 to move, thereby causing the arch-breaking rod 33 to move. Several fixed guide platforms 37 are axially and equally spaced on the inner side wall of the hopper 2 near the upper side of the limiting block 35. The cross-section of the fixed guide platform 37 is an isosceles triangle, and the isosceles surface of the fixed guide platform 37 matches the inclined surface on the movable guide platform 36. Through the cooperation of the movable guide platform 36 and the fixed guide platform 37, the movable guide platform 36 and the fixed guide platform 37 can generate relative displacement when the movable guide platform 36 moves axially.
[0027] An outer rotating ring 41 from the drive assembly 4 is slidably connected in a ring shape on the outer side wall of the hopper 2. Eight strong magnetic blocks 42 are axially and equally spaced on the inner side wall of the outer rotating ring 41, and eight iron blocks 43 are axially and equally spaced on the outer side wall of the inner sliding ring 31. The strong magnetic blocks 42 and iron blocks 43 are on the same horizontal axis and are connected by magnetic attraction. The strong magnetic blocks 42 attract the iron blocks 43 by magnetic attraction. Several gear teeth 44 are axially and equally spaced on the outer side wall of the outer rotating ring 41. A motor 45 is installed on the outer side wall of the hopper 2. A gear 46 is fixedly connected to the output end of the motor 45. The gear 46 and the gear teeth 44 are meshed. When the gear 46 rotates, the gear teeth 44 can move axially, thereby causing the outer rotating ring 41 to rotate.
[0028] The specific implementation method is as follows: After the abrasive mill body 1 completes the abrasive grinding, the plastic powder is discharged through the feeding hopper 2. During the feeding process, the control motor 45 drives the gear 46 to rotate through its output end on one side. Through the meshing between the gear 46 and the gear teeth 44, the gear 46 drives the inner sliding ring 31 to slide axially along the outer side wall of the feeding hopper 2. Utilizing the magnetic attraction force of the strong magnetic block 42 on the iron block 43, when the outer rotating ring 41 rotates, the outer rotating ring 41 pulls the inner sliding ring 31 to slide axially along the inner side wall of the feeding hopper 2. When the sliding ring 31 rotates, the support frame 32 at the top of the inner sliding ring 31 moves synchronously. When the moving guide table 36 contacts the fixed guide table 37, under the guidance of the inclined surface, the moving guide table 36 is squeezed by the fixed guide table 37, and the arch-breaking rod 33 rotates inside the support frame 32. The arch-breaking rod 33 moves towards the center of the inside of the hopper 2. The arch-breaking rod 33 sweeps the plastic powder in the hopper 2, destroys the bridging phenomenon formed by the powder in the hopper 2, avoids the accumulation of powder, and thus ensures smooth material discharge from the hopper 2.
[0029] As the arch-breaking rod 33 swings and the inner sliding ring 31 rotates axially, the arch-breaking rod 33 sweeps the inside of the hopper 2 in all directions, facilitating the efficient and full discharge of plastic particles.
[0030] 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A plastic particle grinding mill, characterized in that: Includes the abrasive mill body (1); A feeding hopper (2) is located at the bottom of the grinding mill body (1); Plastic particle arch-breaking assembly (3) and drive assembly (4) are provided on the feeding hopper (2); The plastic particle arch-breaking component (3) includes: The inner sliding ring (31) slides on the inner side wall of the hopper (2); A support frame (32) is provided on the top of the inner sliding ring (31); The arch-breaking rod (33) rotates on the inner side wall of the support frame (32); A torsion spring (34) is provided between the outer wall of the arch-breaking rod (33) and the inner wall of the support frame (32); A limiting block (35) is provided on the inner side wall of the support frame (32) below the side of the arch-breaking rod (33); A movable guide platform (36) is located at one end of the top of the arch-breaking rod (33); Fixed guide platforms (37) are axially spaced at equal intervals on the inner side wall of the hopper (2).
2. The plastic particle grinding mill according to claim 1, characterized in that: The driving component (4) includes: The outer rotating ring (41) slides on the outer side wall of the hopper (2); A strong magnetic block (42) embedded in the inner wall of the outer rotating ring (41); An iron block (43) is provided on the outer wall of the inner sliding ring (31); A plurality of gear teeth (44) are axially spaced at equal intervals on the outer side wall of the outer rotating ring (41); A motor (45) is installed on the outer wall of the hopper (2); A gear (46) is provided at the output end of the motor (45).
3. The plastic particle grinding mill according to claim 1, characterized in that: The cross-section of the movable guide platform (36) is a right trapezoid, and the top of the movable guide platform (36) is an inclined surface.
4. A plastic particle grinding mill according to claim 3, characterized in that: The cross-section of the fixed guide platform (37) is an isosceles triangle, and the isosceles surface of the fixed guide platform (37) matches the inclined surface on the movable guide platform (36).
5. A plastic particle grinding mill according to claim 2, characterized in that: The strong magnetic block (42) and the iron block (43) are on the same horizontal axis, and the strong magnetic block (42) and the iron block (43) are connected by magnetic adsorption.
6. A plastic particle grinding mill according to claim 2, characterized in that: The gear (46) and the tooth (44) are meshed together.