Plastic guard plate burr trimming device
The plastic guard plate burr trimming device uses internal and external shearing molds to cut burrs, solving the problem of inefficient burr trimming of plastic guard plates in existing technologies. It achieves efficient and time-saving burr trimming, and facilitates waste collection.
Patent Information
- Application Number
- CN202423214888.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2034-12-25
AI Technical Summary
Existing technologies make it difficult to efficiently and mechanically trim burrs on plastic protective plates, especially soft burrs formed at the joints of the die and punch, which affect the appearance and performance of the plastic protective plates.
A plastic guard plate burr trimming device is used. The inner and outer shearing molds work together. The inner shearing mold is moved by a pneumatic cylinder, so that the burrs are cut off by the inner and outer shearing edges. The waste is collected through a discharge channel.
It achieves efficient, time-saving, and labor-saving burr trimming, avoiding the time-consuming and laborious manual trimming, and the waste collection does not pollute the environment.
Smart Images
Figure CN223777607U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a burr trimming device, and more particularly to a plastic guard plate burr trimming device, used to trim burrs on plastic guard plates, belonging to the field of automotive parts processing technology. Background Technology
[0002] Plastic skid plates for automobiles not only protect the chassis and engine from impacts and erosion from external factors such as stones and mud, extending the vehicle's lifespan, but also provide some sound and heat insulation, reducing the impact of noise and heat generated during vehicle operation on the cabin and improving driving comfort. They are an important type of automotive protective device.
[0003] Automotive plastic skid plates are typically injection molded by injecting molten plastic slurry into a specific mold. The injection mold consists of a cavity mold and a punch mold, with a gap between them. The plastic slurry is injected into this gap, cools, and then the mold opens, resulting in the formed plastic skid plate. However, a seam is unavoidable at the junction of the cavity mold and the punch mold. During injection molding, some plastic slurry flows out through this seam, eventually forming a ring of soft burrs integrated with the formed plastic skid plate. These burrs not only affect the appearance of the plastic skid plate but also its performance. The direction of these burrs is usually random, making manual trimming time-consuming, labor-intensive, and very troublesome, and even existing machinery cannot completely remove them. Therefore, it is necessary to provide a device for trimming burrs on plastic skid plates. Utility Model Content
[0004] The purpose of this invention is to provide a plastic guard plate burr trimming device to solve the problem that it is difficult to completely trim burrs on plastic guard plates mechanically in the prior art.
[0005] To solve the above problems, the plastic protective plate burr trimming device involved in this utility model adopts the following technical solution: A plastic protective plate burr trimming device includes a frame, an outer shearing mold fixed on the frame, the outer shearing mold having a channel for products to fit through, the channel being a through channel, the inner edge of the front end of the channel being the outer shearing edge, an inner shearing mold linearly movable on the frame in front of the channel, the outer edge of the rear end of the inner shearing mold being the inner shearing edge that mates with the outer shearing edge, and the inner shearing mold being driven to move by a linear drive mechanism.
[0006] The linear drive mechanism is a pneumatic cylinder.
[0007] The cylinder body of the pneumatic cylinder is fixed on the machine frame, and the piston rod of the pneumatic cylinder is fixed on the front end face of the inner shearing die.
[0008] The frame has a waste material discharge channel at the front of the outer shearing mold.
[0009] The front end face of the external shearing mold has a countersunk hole at the outer edge of the channel.
[0010] The front end of the internal shearing mold has a protrusion whose outer edge matches the countersunk hole.
[0011] The external shearing mold of this utility model has a channel for products to fit through. The inner edge of the front end of the channel is the outer shearing edge. An inner shearing mold is linearly moved in front of the channel. The outer edge of the rear end of the inner shearing mold is the inner shearing edge that mates with the outer shearing edge. A plastic protective plate with burrs is placed into the channel and pushed and pulled so that the plastic protective plate is inside the channel while all the burrs are left outside the channel and tilted towards the outside of the outer shearing edge. The inner shearing mold is moved towards the direction of the outer shearing mold until the inner shearing edge presses against the outer shearing edge. At this time, the burrs on the plastic protective plate are all cut off by the inner and outer shearing edges. Attached Figure Description
[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly described below:
[0013] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;
[0014] Figure 2 for Figure 1 Rear view;
[0015] Figure 3 for Figure 1 A schematic diagram of the structure of the external shearing mold in the diagram;
[0016] Figure 4 for Figure 1 A schematic diagram of the internal shearing die in the diagram;
[0017] Figure 5 for Figure 1 A schematic diagram of the rack structure in the diagram;
[0018] Figure 6 for Figure 1 A schematic diagram of the support frame.
[0019] The diagram is labeled as follows: 1. Frame, 2. Outer shearing mold, 3. Product, 4. Channel, 5. Outer shearing edge, 6. Inner shearing mold, 7. Inner shearing edge, 8. Pneumatic cylinder, 9. Support frame, 10. Through hole, 11. Waste discharge channel. Detailed Implementation
[0020] To make the technical objectives, technical solutions, and beneficial effects of this utility model clearer, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model; that is, the described embodiments are only a part of the embodiments of this utility model, and not all of them. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0021] Specific embodiments of the plastic guard plate burr trimming device involved in this utility model are as follows: Figures 1-6 The device includes a frame 1 as its base, on which an outer shearing mold 2 is fixed. The outer shearing mold 2 has a channel 4 for a product 3 to pass through. The product 3 is a plastic protective plate to be trimmed of burrs. The product 3 is not part of the structure of this utility model. The channel 4 is a through channel, and the product 3 can slide back and forth in the channel 4. The inner edge of the front end of the channel 4 is the outer shearing edge 5. An inner shearing mold 6 is linearly moved on the frame 1 in front of the channel 4. The outer edge of the rear end of the inner shearing mold 6 is the inner shearing edge 7 that cooperates with the outer shearing edge 5. The so-called rear end refers to the end where the outer shearing mold 2 is located. In contrast, the front end refers to the end where the inner shearing mold 6 is located. The inner shearing mold 6 is driven to move by a linear drive mechanism. The linear drive mechanism can drive the inner shearing mold 6 to move closer to or away from the outer shearing mold 2. In use, a separately equipped robotic arm (not shown in the figure) is used to insert product 3 into the channel 4 of the outer shearing mold 2, and push product 3 to slide forward along the channel 4 to the outside of the channel 4, so that product 3 and the burrs on product 3 are outside the channel 4. Then, the robotic arm is used to pull product 3 back. The robotic arm is not part of the structure of this utility model. Since product 3 fits into the channel 4, product 3 will return to the channel 4 first, while the soft burrs are located in front of product 3. When product 3 has just returned to the channel 4, the pulling of product 3 is stopped. At this time, all the burrs are bent by the wall of the channel 4 and are located on the outside of the channel 4. That is, all the burrs are located between the inner shearing edge 7 and the outer shearing edge 5. Then, the linear drive mechanism is activated to drive the inner shearing mold 6 to move backward, so that the inner shearing edge 7 presses against the outer shearing edge 5. At this time, the inner shearing edge 7 and the outer shearing edge 5 act as the blades on both sides of the scissors. The burrs on product 3 are all cut off by the inner shearing edge 7 and the outer shearing edge 5, which saves time and effort and is easy to operate.
[0022] Specifically, the linear drive mechanism is a pneumatic cylinder 8. The pneumatic cylinder 8 drives the inner shearing die 6 to move closer to or further away from the outer shearing die 2.
[0023] Specifically, a support frame 9 extends upward from the frame 1, parallel to the outer shearing mold 2. A through hole 10 is provided on the support frame 9. The cylinder body of the pneumatic cylinder 8 is fixed to the support frame 9 in front of it. The piston rod of the pneumatic cylinder 8 slides through the through hole 10 on the support frame 9 and is fixed to the front end face of the inner shearing mold 6. When the piston rod slides backward relative to the cylinder body, the inner shearing mold 6 moves towards the outer shearing mold 2; when the piston rod slides forward relative to the cylinder body, the inner shearing mold 6 moves away from the outer shearing mold 2.
[0024] Specifically, a waste material discharge channel 11 is provided on the frame 1 at the front of the outer shearing die 2. The waste material discharge channel 11 is used to collect the cut burrs. The waste material discharge channel 11 opens upward and is located below the outer shearing die 2. The burrs cut by the inner shearing edge 7 and the outer shearing edge 5 fall into the waste material discharge channel 11 under their own gravity. In this way, the cut burrs are collected uniformly for subsequent processing, which neither pollutes the environment nor affects the operation of the plastic guard plate burr trimming device.
[0025] Specifically, a countersunk hole is provided on the front end face of the outer shearing mold 2 at the outer edge of the channel 4. The countersunk hole can, on the one hand, ensure that the inner shearing edge 7 aligns with the outer shearing edge 5 when the inner shearing mold 6 moves towards the outer shearing mold 2, preventing the inner shearing mold 6 from deviating; on the other hand, it can make the inner shearing edge 7 and the outer shearing edge 5 engage more tightly when the inner shearing mold 6 pushes the outer shearing mold 2 backward, so that the inner shearing edge 7 and the outer shearing edge 5 can trim the burrs on the product 3 more cleanly.
[0026] Specifically, the front end of the inner shearing die 6 has a protrusion whose outer edge matches the countersunk hole. On the one hand, the protrusion can make the inner shearing edge 7 align with the outer shearing edge 5 when the inner shearing die 6 moves towards the outer shearing die 2, preventing the inner shearing die 6 from deviating. On the other hand, when the inner shearing die 6 presses against the outer shearing die 2, it can make the inner shearing edge 7 and the outer shearing edge 5 engage more tightly, so that the inner shearing edge 7 and the outer shearing edge 5 can trim the burrs on the product 3 more cleanly.
[0027] In this embodiment, the linear drive mechanism is a pneumatic cylinder. In other embodiments, the pneumatic cylinder can be replaced with a hydraulic cylinder.
[0028] In this embodiment, the cylinder body of the pneumatic cylinder is fixed on the frame, and the piston rod of the pneumatic cylinder is fixed on the front end face of the inner shearing mold. This is an optimized technical solution. In other embodiments, the cylinder body of the pneumatic cylinder can also be fixed on the outer shearing mold, and a base can be fixed at the front end of the inner shearing mold. The rear end face of the base protrudes outside the inner shearing mold, and the piston rod of the pneumatic cylinder can be fixed on the rear end face of the base.
[0029] In this embodiment, a waste material discharge channel is provided at the front of the outer shearing mold on the frame. This is an optimized technical solution. In other embodiments, the waste material discharge channel may not be provided.
[0030] In this embodiment, a countersunk hole is provided on the front end face of the outer shearing mold at the outer edge of the channel. This is an optimized technical solution. In other embodiments, the countersunk hole may not be provided.
[0031] In this embodiment, the front end of the internal shearing mold has a protrusion whose outer edge matches the countersunk hole. This is an optimized technical solution. In other embodiments, the protrusion may not be provided.
[0032] Finally, it should be noted that the above embodiments are only for illustration and not for limiting the technical solutions of this utility model. Any equivalent substitutions and modifications or partial substitutions that do not depart from the spirit and scope of this utility model should be covered within the scope of protection of the claims of this utility model.
Claims
1. A plastic shield burr trimming device, characterized by, The utility model relates to a shearing machine, which comprises a frame, an outer shearing die fixed on the frame, a channel for the product to pass through in the outer shearing die, the channel being a through channel, the inner opening of the front end of the channel being an outer shearing edge, an inner shearing die linearly moving in front of the channel on the frame, the rear end outer edge of the inner shearing die being an inner shearing edge matched with the outer shearing edge, and the inner shearing die being driven to move by a linear driving mechanism.
2. The plastic shield burr trimming device of claim 1, wherein, The linear driving mechanism is a pneumatic cylinder.
3. The plastic shield burr trimming device of claim 2, wherein, The cylinder body of the pneumatic cylinder is fixed on the frame, and the piston rod of the pneumatic cylinder is fixed on the front end face of the inner shearing die.
4. A plastic shield burr trimming device according to claim 1 or 2 or 3, characterized in that, A waste leakage channel is formed on the front part of the outer shearing die on the frame.
5. The plastic shield burr trimming device of claim 4, wherein, A counterbore is arranged on the outer edge of the channel on the front end face of the outer shearing die.
6. The plastic shield burr trimming device of claim 5, wherein, The front end of the inner shearing die has a convex column matched with the counterbore.