Fine grinding device for molded plastic shell

By designing a precision grinding device after the plastic shell is molded, and using a fan and a closed structure to collect debris, the problem of debris splashing during the grinding process is solved, achieving efficient cleaning and improved safety.

CN224129359UActive Publication Date: 2026-04-17PUTIAN HANJIANG HUAFENG ELECTRONICS CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
PUTIAN HANJIANG HUAFENG ELECTRONICS CO LTD
Filing Date
2025-02-13
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing plastic shell grinding equipment generates a large amount of debris during the grinding process, which requires manual cleaning, resulting in high labor intensity and safety hazards.

Method used

A fine grinding device for plastic shell molding was designed. It uses a structure of fan, air duct, cavity plate and blower head to collect debris, and achieves a sealed structure through fixed seat, flip seat, box door and magnetic connection to avoid debris splashing.

Benefits of technology

This reduces the cleaning workload for staff, lowers safety risks, and improves the practicality and safety of the equipment.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224129359U_ABST
    Figure CN224129359U_ABST
Patent Text Reader

Abstract

The utility model discloses a fine polishing device after plastic shell molding, which comprises a processing box, the left surface of the processing box is fixedly connected with a fixed seat, the inner surface of the fixed seat is fixedly connected with a fixed shaft, the outer surface of the fixed shaft is rotatably connected with an overturning seat, the outer surface of the overturning seat is fixedly connected with a box door, and the box door is fixedly connected with a rotating shaft. An observation window is arranged on the outer surface of the box door, and a sub-magnetic plate is arranged on the front surface of the processing box. Through the arrangement of a fan, an air pipe, a cavity plate, an air blowing head, a drawing box and other structures, chippings generated in the polishing process can be cleaned and collected, so that the cleaning strength of workers is relieved, the practicability of the device is improved, and through the arrangement of a fixing base, a fixing shaft, an overturning base, a box door, a son magnetic plate, a mother magnetic plate and other structures, the device is convenient to use. And the whole polishing process is in a closed structure, so that the situation that chippings generated by polishing splash everywhere is avoided, and the risk that workers are injured is reduced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of plastic shell processing technology, and in particular to a fine polishing device for plastic shells after molding. Background Technology

[0002] With the rapid development of modern industry, plastic products are increasingly widely used in various fields. However, disc-shaped plastic shells, as a type of plastic, often exhibit surface defects such as burrs, flash, and shrinkage marks during injection molding due to factors such as mold precision, molding process, and material properties. These defects not only affect the product's aesthetics but may also lead to safety issues during use. Therefore, fine polishing of the molded plastic shells is particularly important.

[0003] However, existing grinding devices still have certain drawbacks. For example, they generate a large amount of debris during the grinding process, requiring workers to clean it up, which is labor-intensive. Secondly, this debris may fly into the workers' eyes, posing a safety hazard. A search revealed that the technical solution provided by utility model application number CN202221437386.9 also suffers from the aforementioned problems. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a fine polishing device for plastic shells after molding. This device can clean and collect the debris generated during the polishing process, thereby reducing the cleaning intensity for workers and improving the practicality of the device. It can also keep the entire polishing process in a closed structure, thereby preventing the debris generated during polishing from flying everywhere and reducing the risk of injury to workers.

[0005] This utility model also provides a fine polishing device for plastic shells after molding, comprising:

[0006] A processing box, wherein a fixed base is fixedly connected to the left surface of the processing box, a fixed shaft is fixedly connected to the inner surface of the fixed base, a flipping base is rotatably connected to the outer surface of the fixed shaft, a box door is fixedly connected to the outer surface of the flipping base, an observation window is provided on the outer surface of the box door, a sub-magnetic plate is provided on the front surface of the processing box, and a mother magnetic plate is provided on the rear surface of the box door.

[0007] A fan is fixedly connected to the front surface of the box door. A duct is installed at the output end of the fan. A cavity plate is installed at the end of the duct away from the fan. A blower head is installed on the rear surface of the cavity plate. A fixed box is fixedly connected to the inner surface of the processing box. A motor is fixedly connected to the inner surface of the fixed box. A rotating shaft is fixedly connected to the output end of the motor. A support plate is fixedly connected to the outer surface of the rotating shaft. A cylinder is fixedly connected to the top inner wall of the processing box. A connecting plate is installed at the output end of the cylinder. A fixed column is fixedly connected to the lower surface of the connecting plate. A limit block is fixedly connected to the lower end of the fixed column. A pressure block is rotatably connected to the outer surface of the fixed column. An electric push rod is fixedly connected to the inner surface of the processing box. A connecting frame is fixedly connected to the output end of the electric push rod. A connecting rod is fixedly connected to the inner surface of the connecting frame. A grinding block is fixedly connected to the inner surface of the connecting rod. A drawer is installed on the inner surface of the processing box.

[0008] According to the aforementioned fine polishing device for plastic shell molding, a material discharge hole is formed between the processing box and the fixed box to facilitate the collection of debris.

[0009] According to the aforementioned fine polishing device for plastic shell molding, the observation window is made of transparent glass, which facilitates observation of the polishing status of the plastic shell.

[0010] According to the aforementioned fine polishing device for plastic shell molding, the front surface of the processing box is in contact with the box door, and the sub-magnetic plate is magnetically connected to the mother magnetic plate, which facilitates the closing of the box door and the processing box.

[0011] According to the aforementioned fine polishing device for plastic shell molding, the number of blower heads is multiple, and the outer surface of the cavity plate is fixedly connected to the box door.

[0012] According to the aforementioned fine polishing device for plastic shell molding, the outer surface of the limiting block is rotatably connected to the pressure block, and the pressure block is made of rubber to avoid damage to its surface when fixing the plastic shell.

[0013] According to the aforementioned fine polishing device for plastic shell molding, the number of electric push rods is two and they are symmetrically distributed.

[0014] According to the aforementioned fine polishing device for plastic shell molding, the fan and electric push rod are both electrically connected to an external power source.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. By setting up structures such as fans, air ducts, cavity plates, blowers and drawers, the debris generated during the grinding process can be cleaned and collected, thereby reducing the cleaning intensity of the workers and improving the practicality of the device;

[0017] 2. By setting up structures such as fixed seats, fixed shafts, flip seats, box doors, sub-magnetic plates and mother magnetic plates, the entire grinding process can be kept in a closed structure, thereby preventing the sand particles generated during grinding from flying everywhere and reducing the risk of injury to workers.

[0018] 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

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0020] Figure 1 This is a schematic diagram of the overall structure of a fine polishing device for plastic shells after molding, according to the present invention.

[0021] Figure 2 This is a schematic diagram of the overall structure of the fine polishing device for plastic shells after molding, as per the present invention, in the open state.

[0022] Figure 3 This is a partial structural cross-sectional view of a fine polishing device for plastic shells after molding, according to this utility model.

[0023] Figure 4 for Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0024] Legend:

[0025] 1. Processing box; 2. Fixed base; 3. Fixed shaft; 4. Tilting base; 5. Box door; 6. Observation window; 7. Sub-magnetic plate; 8. Mother magnetic plate; 9. Fan; 10. Air duct; 11. Cavity plate; 12. Air blower head; 13. Fixed box; 14. Motor; 15. Rotating shaft; 16. Support plate; 17. Cylinder; 18. Connecting plate; 19. Fixed column; 20. Limiting block; 21. Pressure block; 22. Electric push rod; 23. Connecting frame; 24. Connecting rod; 25. Grinding block; 26. Drawer box; 27. Material drop hole. Detailed Implementation

[0026] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0027] Reference Figure 1-4This utility model provides a fine polishing device for plastic shells after molding, comprising: a processing box 1, a fixed seat 2 fixedly connected to the left surface of the processing box 1, a fixed shaft 3 fixedly connected to the inner surface of the fixed seat 2, a flip seat 4 rotatably connected to the outer surface of the fixed shaft 3, a box door 5 fixedly connected to the outer surface of the flip seat 4, an observation window 6 provided on the outer surface of the box door 5, a sub-magnetic plate 7 provided on the front surface of the processing box 1, a female magnetic plate 8 provided on the rear surface of the box door 5, the observation window 6 being made of transparent glass, the front surface of the processing box 1 contacting the box door 5, and the sub-magnetic plate 7 and the female magnetic plate 8 being magnetically connected.

[0028] A fan 9 is fixedly connected to the front surface of the door 5. A duct 10 is installed at the output end of the fan 9. A cavity plate 11 is installed at the end of the duct 10 furthest from the fan 9. A blower head 12 is installed on the rear surface of the cavity plate 11. A fixed box 13 is fixedly connected to the inner surface of the processing box 1. A motor 14 is fixedly connected to the inner surface of the fixed box 13. A rotating shaft 15 is fixedly connected to the output end of the motor 14. A support plate 16 is fixedly connected to the outer surface of the rotating shaft 15. A cylinder 17 is fixedly connected to the top inner wall of the processing box 1. A connecting plate 18 is installed at the output end of the cylinder 17. A fixing column 19 is fixedly connected to the lower surface of the connecting plate 18. A limit block 20 is fixedly connected to the lower end of the fixing column 19. A pressure block 21 is rotatably connected to the outer surface of the processing box 1. An electric push rod 22 is fixedly connected to the inner surface of the processing box 1. A connecting frame 23 is fixedly connected to the output end of the electric push rod 22. A connecting rod 24 is fixedly connected to the inner surface of the connecting frame 23. A grinding block 25 is fixedly connected to the inner surface of the connecting rod 24. A drawer box 26 is provided on the inner surface of the processing box 1. A material drop hole 27 is formed between the processing box 1 and the fixed box 13. There are multiple blowers 12. The outer surface of the cavity plate 11 is fixedly connected to the box door 5. The outer surface of the limiting block 20 is rotatably connected to the pressure block 21. The pressure block 21 is made of rubber. There are two electric push rods 22, which are symmetrically distributed. The fan 9 and the electric push rods 22 are electrically connected to an external power source.

[0029] Working principle: In use, the fixed seat 2 and the flip seat 4 cooperate, and the box door 5 is flipped open with the fixed shaft 3 as the axis. Then, the disc-shaped plastic shell to be polished is placed on the support plate 16. Then, the cylinder 17 is started, which drives the connecting plate 18 to move the pressure block 21 downward, thereby squeezing and fixing the plastic shell. Then, the box door 5 is closed again with the fixed shaft 3 as the axis, and the sub-magnetic plate 7 and the mother magnetic plate 8 are magnetically attracted and fixed. Then, the motor 14 and the electric push rod 22 are started. Under the action of the motor 14, the rotating shaft 15 is driven to move the plastic shell on the support plate 16 under the action of the fixed column 19, the limit block 20 and the pressure block 21. The plastic shell rotates at high speed. Then, under the action of the electric push rod 22, the connecting frame 23 drives the grinding blocks 25 on both sides to move towards each other and close to the edge of the high-speed rotating plastic shell, thereby realizing the grinding operation on the edge of the plastic shell. With the closing action of the box door 5, the grinding debris can be prevented from flying everywhere. When it is necessary to clean up the debris generated during the grinding process, simply start the fan 9 and drive the air duct 10 to blow air through the cavity plate 11 and the blower head 12, thereby blowing the debris generated during the grinding process into the drawer box 26 through the material drop hole 27 for collection, so as to reduce the cleaning intensity of the workers.

[0030] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A fine polishing device for plastic shells after molding, characterized in that, include: A processing box (1) is provided with a fixed seat (2) fixedly connected to the left surface of the processing box (1), a fixed shaft (3) fixedly connected to the inner surface of the fixed seat (2), a flip seat (4) rotatably connected to the outer surface of the fixed shaft (3), a box door (5) fixedly connected to the outer surface of the flip seat (4), an observation window (6) provided on the outer surface of the box door (5), a sub-magnetic plate (7) provided on the front surface of the processing box (1), and a mother magnetic plate (8) provided on the rear surface of the box door (5). A fan (9) is fixedly connected to the front surface of the door (5). A duct (10) is provided at the output end of the fan (9). A cavity plate (11) is provided at the end of the duct (10) away from the fan (9). A blower head (12) is provided on the rear surface of the cavity plate (11). A fixing box (13) is fixedly connected to the inner surface of the processing box (1). A motor (14) is fixedly connected to the inner surface of the fixing box (13). A rotating shaft (15) is fixedly connected to the output end of the motor (14). A support plate (16) is fixedly connected to the outer surface of the rotating shaft (15). A cylinder (17) is fixedly connected to the top inner wall of the processing box (1). A connecting plate (18) is provided at the output end of the cylinder (17). A fixing column (19) is fixedly connected to the lower surface of the connecting plate (18). A limit block (20) is fixedly connected to the lower end of the fixing column (19). A pressure block (21) is rotatably connected to the outer surface of the fixing column (19). An electric push rod (22) is fixedly connected to the inner surface of the processing box (1). A connecting frame (23) is fixedly connected to the output end of the electric push rod (22). A connecting rod (24) is fixedly connected to the inner surface of the connecting frame (23). A grinding block (25) is fixedly connected to the inner surface of the connecting rod (24). A drawer box (26) is provided on the inner surface of the processing box (1).

2. The device for fine polishing of a plastic shell after molding according to claim 1, wherein A material discharge hole (27) is formed between the processing box (1) and the fixing box (13).

3. The device for fine polishing of a plastic shell after molding according to claim 1, wherein The observation window (6) is made of transparent glass.

4. The device for fine polishing of a plastic shell after molding according to claim 1, wherein The front surface of the processing box (1) is in contact with the box door (5), and the sub-magnetic plate (7) is magnetically connected to the mother magnetic plate (8).

5. The fine polishing device for plastic shells after molding according to claim 1, characterized in that, The number of blower heads (12) is multiple, and the outer surface of the cavity plate (11) is fixedly connected to the box door (5).

6. The device for fine polishing of a plastic shell after molding according to claim 1, wherein The outer surface of the limiting block (20) is rotatably connected to the pressure block (21), and the pressure block (21) is made of rubber.

7. The device for fine polishing of a plastic shell after molding according to claim 1, wherein The number of electric actuators (22) is two and they are symmetrically distributed.

8. The device for fine polishing of a plastic shell after molding according to claim 1, wherein The fan (9) and electric actuator (22) are both electrically connected to an external power source.

Citation Information

Patent Citations

  • Fine grinding device for molded plastic shell

    CN217750862U