Plastic part edge shaping device
By designing synchronously moving upper and lower brush parts to polish the upper and lower surfaces of plastic parts, the problem of low efficiency and easy damage in the prior art is solved, and an efficient and balanced edge shape modification effect is achieved.
Patent Information
- Application Number
- CN202422386834.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-29
AI Technical Summary
Existing plastic parts edge modification methods are inefficient and prone to damage parts, especially complex shapes or thin edge parts, which are prone to deform or damage when flipped and renovated.
A plastic component edge shape modification device is designed, and the upper and lower brush parts are moved simultaneously on both sides of the bearing surface, and the upper and lower surfaces of the plastic component are synchronized. The reverse linear movement of the brush head is achieved through the actuator driving linkage to avoid flip operations.
Improves grinding efficiency, reduces damage to parts, ensures balanced stress at thin edges, and improves grinding quality.
Smart Images
Figure CN223146775U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of plastic part processing, and particularly relates to a plastic part edge trimming device. Background Art
[0002] In modern manufacturing, plastic parts are widely used in various fields due to their light weight, corrosion resistance, and good processing performance. Especially in industries such as automobiles, electronic devices, and household appliances, the demand for plastic parts is increasing day by day. However, in the production process of plastic parts, edge trimming is a crucial process, which directly affects the appearance quality and assembly accuracy of the final product.
[0003] Traditional plastic part edge trimming methods mainly include manual grinding and mechanical automation grinding. Although manual grinding is flexible, it has low efficiency and poor consistency; while existing automated trimming devices have some obvious limitations. For example, many devices need to flip the part to complete the trimming of two surfaces, which not only increases the operation steps and prolongs the production cycle, but may also cause damage to the part or generate additional scratches during the flipping process. In addition, for some plastic parts with complex shapes, especially those with thin edges or fine structures (such as gear teeth), when directly trimming the side, it is often difficult to design a fixture that is both stable and does not interfere with the area to be processed, easily resulting in ineffective cleaning of some positions or deformation or even breakage of the part due to uneven force. In view of the above problems, it is particularly necessary to develop a plastic part edge trimming device that can improve work efficiency and ensure product quality. Summary of the Utility Model
[0004] I. Technical Problems to be Solved
[0005] The purpose of the utility model is to provide a plastic part edge trimming device, which improves work efficiency by synchronously trimming the two side edges of plastic parts, and optimizes and reduces damage to the edge structure of the parts to improve the grinding quality.
[0006] II. Technical Solutions
[0007] The utility model is realized through the following technical solutions:
[0008] The utility model provides a plastic part edge trimming device, including:
[0009] A carrier for rotating a processing object on a bearing surface at a predetermined height;
[0010] A trimming brush assembly including an upper brush member and a lower brush member, the upper brush member and the lower brush member being arranged on both sides of the bearing surface, and the vertical projections on the bearing surface respectively having overlapping areas with the edges of the thin plastic parts;
[0011] An actuator for driving the upper brush member and the lower brush member to linearly move in opposite directions synchronously in a direction perpendicular to the bearing surface.
[0012] Furthermore, the actuator includes a base, a driving member, and a linkage member. The linkage member includes an upper movable plate, a lower movable plate respectively located on the upper and lower sides of the base, an upper rack fixedly connected below the upper movable plate, a lower rack fixedly connected above the lower movable plate, and a gear rotatably connected to the side surface of the base. The upper rack and the lower rack are respectively located on both sides of the gear and are both meshed and connected to the rack; the driving member is connected to the base and is used to drive the upper movable plate or the lower movable plate to move in a direction perpendicular to the bearing surface.
[0013] Furthermore, the driving member includes a first motor, a first driving pulley coaxially and fixedly connected to the output end of the first motor, a lead screw rotatably connected to the base, a lead screw nut threadedly connected to the lead screw, and a first driven pulley coaxially and fixedly connected to the free end of the lead screw. The first driving pulley and the first driven pulley are connected by belt drive, and the lead screw nut is fixedly connected to the upper movable plate.
[0014] Furthermore, the carrier includes a bracket, a table body rotatably connected to the bracket, a cylinder fixed to the bracket, a mounting seat fixed to the telescopic end of the cylinder, and an upper pressing table coaxially and rotatably connected to the mounting seat. The upper pressing table can be driven by the cylinder to press against the workpiece on the table body and rotate synchronously with the table body.
[0015] Furthermore, the upper brush member and the lower brush member have the same structure, and both include a power motor, a rotating shaft, a brush head coaxially and fixedly connected to the end of the rotating shaft, and a transmission mechanism for connecting the output end of the power motor and the rotating shaft. Among them, the transmission mechanism is a belt transmission mechanism, a chain and gear transmission mechanism or a gear meshing transmission mechanism.
[0016] Furthermore, the rotating shafts of the upper brush member and the lower brush member are coaxially arranged.
[0017] Furthermore, a blower and a slag collecting cover are respectively and oppositely fixed on both sides of the carrier.
[0018] III. Beneficial effects
[0019] The utility model has the following beneficial effects compared with the prior art:
[0020] 1. In the utility model, the upper brush member and the lower brush member respectively polish the upper surface and the lower surface of the plastic part, without turning over to polish the two surfaces of the plastic part, improving the polishing efficiency;
[0021] 2. Drive the linkage member through the driving member, and the linkage member drives the upper brush head and the lower brush head to simultaneously contact the upper and lower surfaces of the plastic part. When the plastic part is being ground and its edge is being shaped, the two sides of the thinner edge are evenly stressed, reducing damage to the surface of the plastic part and improving the grinding quality. Brief Description of the Drawings
[0022] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;
[0023] Figure 2 is Figure 1 front view of
[0024] 1. Carrier platform; 11. Bracket; 12. Table body; 13. Cylinder; 14. Mounting seat; 15. Upper pressing table; 2. Edge shaping brush assembly; 21. Upper brush member; 22. Lower brush member; 23. Power motor; 24. Rotating shaft; 25. Brush head; 26. Transmission mechanism; 3. Actuating member; 31. Base; 32. Driving member; 321. First motor; 322. First driving pulley; 323. Lead screw; 324. Lead screw nut; 325. First driven pulley; 33. Linkage member; 331. Upper movable plate; 332. Lower movable plate; 333. Upper rack; 334. Lower rack; 335. Gear; 4. Fan; 5. Slag collection cover. Detailed Embodiment
[0025] In order to make the purpose, technical solution and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.
[0026] An edge shaping device for plastic parts, please refer to Figure 1-2 , which includes a carrier platform 1, an edge shaping brush assembly 2 and an actuating member 3; the carrier platform 1 can place the processing object of the plastic part on a bearing surface at a predetermined height for rotation. Most of the plastic parts processed by the present utility model are thin parts, such as plastic gears, etc. The carrier platform 1 includes a bracket 11, a table body 12 rotatably connected to the bracket 11, a cylinder 13 fixed to the bracket 11, a mounting seat 14 fixed to the telescopic end of the cylinder 13, and an upper pressing table 15 rotatably connected coaxially with the mounting seat 14. The workpiece is placed on the table body 12, and the table body 12 is driven by a motor to rotate. The cylinder 13 drives the upper pressing table 15 to move and press against the upper part of the workpiece. When the table body 12 rotates, the upper pressing table 15 rotates synchronously with the plastic part, maintaining stability during the processing of the part and improving the edge shaping effect.
[0027] The modified brush assembly 2 includes an upper brush member 21 and a lower brush member 22. The upper brush member 21 and the lower brush member 22 are arranged on both sides of the bearing surface, and their vertical projections on the bearing surface respectively have overlapping areas with the edges of the thin plastic parts. The upper brush member 21 and the lower brush member 22 respectively clean burrs and polish and modify the plastic parts from both sides; the actuating member 3 is used to drive the upper brush member 21 and the lower brush member 22 to linearly move synchronously and reversely in the direction perpendicular to the bearing surface. The upper brush member 21 and the lower brush member 22 move synchronously from both sides towards the plastic parts for cleaning, and move away from the surface of the plastic parts synchronously from both sides, improving the cleaning efficiency and eliminating the need for flipping cleaning, making the edge modification more sufficient and rapid; especially when processing thin parts, the forces on both sides of the parts are the same, making the parts less likely to be damaged and deformed.
[0028] In this embodiment, the upper brush member 21 and the lower brush member 22 have the same structure, and both include a power motor 23, a rotating shaft 24, a brush head 25 coaxially fixed to the end of the rotating shaft 24, and a transmission mechanism 26 for connecting the output end of the power motor 23 and the rotating shaft 24. Among them, the transmission mechanism 26 is a belt transmission mechanism 26, a chain and gear transmission mechanism 26 or a gear meshing transmission mechanism 26; the power motor 23 drives the rotating shaft 24 to rotate, and the rotating shaft 24 drives the brush head 25 to rotate to clean the surface of the plastic parts; in addition, the rotating shafts 24 of the upper brush member 21 and the lower brush member 22 are coaxially arranged, and the two brush heads 25 are arranged opposite to each other. When cleaning the surface of the parts, the force is uniform, making the plastic parts less likely to be deformed under pressure.
[0029] In some specific embodiments, the actuating member 3 includes a base 31, a driving member 32 and a linkage member 33. The driving member 32 includes a first motor 321, a first driving pulley 322 coaxially and fixedly connected to the output end of the first motor 321, a lead screw 323 rotatably connected to the base 31, a lead screw nut 324 threadedly connected to the lead screw 323, and a first driven pulley 325 coaxially and fixedly connected to the free end of the lead screw 323. The first driving pulley 322 and the first driven pulley 325 are connected by belt transmission; the first motor 321 drives the first driving pulley 322 to rotate, the first driving pulley 322 drives the first driven pulley 325 to rotate through the belt, the first driven pulley 325 drives the lead screw 323 to rotate, and the lead screw 323 drives the lead screw nut 324 to move vertically;
[0030] The linkage member 33 includes an upper movable plate 331, a lower movable plate 332 respectively located on the upper and lower sides of the base 31, an upper rack 333 fixedly connected to the lower side of the upper movable plate 331, a lower rack 334 fixedly connected to the upper side of the lower movable plate 332, and a gear 335 rotatably connected to the side surface of the base 31. The upper rack 333 and the lower rack 334 are respectively located on both sides of the gear 335 and are both meshed and connected to the rack. The driving member 32 is connected to the base 31 and is used to drive the upper movable plate 331 or the lower movable plate 332 to move in a direction perpendicular to the bearing surface. The lead screw nut 324 is fixedly connected to the upper movable plate 331. The lead screw nut 324 drives the upper movable plate 331 to move. The upper movable plate 331 drives the upper rack 333 to move. The upper rack 333 drives the gear 335 to rotate. The gear 335 drives the lower rack 334 to move. The lower rack 334 drives the lower movable plate 332 to move. The moving directions of the upper movable plate 331 and the lower movable plate 332 are opposite. When the upper rack 333 moves downward, the upper movable plate 331 and the lower movable plate 332 move closer to each other and polish the plastic part. When the upper rack 333 moves upward, the upper movable plate 331 and the lower movable plate 332 move away from each other and separate from the plastic part.
[0031] In this embodiment, a blower 4 and a slag collecting hood 5 are respectively and oppositely fixed on both sides of the carrier 1. When the edge of the plastic part is polished and shaped, the blower 4 is turned on to blow the debris into the slag collecting hood 5 for collection, keeping it clean and facilitating continuous operation.
[0032] The above-described embodiments are only used to describe the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various variations and improvements made by those of ordinary skill in the art to the technical solution of the present invention should fall within the protection scope of the present invention. The technical content claimed by the present invention has been fully recorded in the claims.
Claims
1. A plastic part edge trimming device, characterized in that, Comprising: A stage for placing a workpiece to be processed and rotating it on a bearing surface at a predetermined height; A profiling brush assembly including an upper brush member and a lower brush member, the upper brush member and the lower brush member being arranged on both sides of the bearing surface, and the vertical projections thereof on the bearing surface respectively having overlapping areas with the edges of the thin plastic part; An actuator for driving the upper brush member and the lower brush member to synchronously move linearly in opposite directions in a direction perpendicular to the bearing surface.
2. The edge trimming device for plastic parts according to claim 1, characterized in that, The actuator includes a base, a driving member and a linkage member. The linkage member includes an upper movable plate, a lower movable plate respectively located on the upper and lower sides of the base, an upper rack fixedly connected below the upper movable plate, a lower rack fixedly connected above the lower movable plate, and a gear rotatably connected to the side surface of the base. The upper rack and the lower rack are respectively located on both sides of the gear and are both meshed and connected to the gear; the driving member is connected to the base and is used for driving the upper movable plate or the lower movable plate to move in a direction perpendicular to the bearing surface.
3. The edge trimming device for plastic parts according to claim 2, characterized in that, The driving member includes a first motor, a first driving pulley coaxially and fixedly connected to the output end of the first motor, a lead screw rotatably connected to the base, a lead screw nut threadedly connected to the lead screw, and a first driven pulley coaxially and fixedly connected to the free end of the lead screw. The first driving pulley and the first driven pulley are connected by belt drive, and the lead screw nut is fixedly connected to the upper movable plate.
4. The edge trimming device for plastic parts according to claim 3, characterized in that, The stage includes a bracket, a table body rotatably connected to the bracket, a cylinder fixed to the bracket, a mounting seat fixed to the telescopic end of the cylinder, and an upper pressing table rotatably connected to the mounting seat coaxially. The upper pressing table can be driven by the cylinder to press against the workpiece on the table body and rotate synchronously with the table body.
5. A plastic part edge trimming device according to claim 4, characterized in that, The upper brush member and the lower brush member have the same structure and both include a power motor, a rotating shaft, a brush head coaxially and fixedly connected to the end of the rotating shaft, and a transmission mechanism for connecting the output end of the power motor and the rotating shaft. Among them, the transmission mechanism is a belt drive mechanism, a chain and gear drive mechanism or a gear meshing drive mechanism.
6. The edge trimming device for plastic parts according to claim 5, characterized in that, The rotating shafts of the upper brush member and the lower brush member are coaxially arranged.
7. A plastic part edge trimming device according to any one of claims 1-6, characterized in that, A blower and a slag collection cover are respectively and oppositely fixed on both sides of the stage.