Polisher for plastic model part

Abstract

The utility model discloses a polisher for plastic model parts. The polisher comprises a machining table top. A fixing assembly is arranged on one side of the top face of the machining tabletop, and a grinding mechanism is arranged on the other side of the top face of the machining tabletop. Wherein the fixing assembly comprises a moving plate slidably installed on the top face of the machining table top, the top face of the moving plate is slidably connected with a lifting plate, one side of the top face of the lifting plate is fixedly connected with a bending frame, a fixing stud is installed at the top of the bending frame in a threaded mode, and one side of the top face of the moving plate is fixedly connected with a side plate. The top end of the side plate is in threaded sliding connection with a lateral moving stud, a movable spring is rotationally connected between the lateral moving stud and the bending frame, and a rotating base plate is rotationally installed on the top face of the lifting plate. The parts are fixed, the peripheries of the parts can be ground, meanwhile, the parts are ground at different heights, shaking of the parts is avoided, and it is guaranteed that grinding is uniform enough.

Description

Technical Field

[0001] This utility model relates to the field of model polishing technology, specifically a polishing tool for plastic model parts. Background Technology

[0002] After the plastic model is processed, it needs to be painted. Before painting, the plastic model needs to be sanded. Since the surface of the plastic model is generally irregular, the traditional sanding method is to manually sand it with sandpaper. This is labor-intensive, inefficient, and difficult to control the sanding precision. It is inconvenient to sand plastic models.

[0003] Existing plastic models require sanding with sandpaper of different roughness in sequence during the polishing process;

[0004] Publication No. CN210633435U discloses a sander for plastic model parts, including a base, a control box on the top right side of the base, a motor on the outside of the control box, a first rotating shaft connected to the motor, an incomplete gear on the first rotating shaft, a control frame inside the control box, a meshing block fixedly connected to the inner wall of the control frame, the meshing block meshing with the incomplete gear, a through groove on the left side wall of the control box, an electric telescopic rod fixedly connected to the left side of the control frame, the electric telescopic rod passing through the through groove and fixedly connected to a connecting piece, a sanding sponge glued to the end of the connecting piece, a placement plate on the left side of the base with a placement groove, a chamber on the right side of the base containing an adjustment component, and a control panel on the base. This invention uses the control frame to drive the movement of the sanding sponge, which sands the plastic model. The placement plate is rotated by turning the handle, enabling comprehensive sanding of the plastic model. However, this patent still has the following problems in actual use:

[0005] In the above device, the part is placed directly in the placement groove. During polishing, there needs to be a certain degree of pressure between the polishing sponge and the part. However, the depth of the placement groove is limited, which limits the limiting effect on the part. When the polishing sponge comes into contact with the part, the part is prone to displacement and shaking, which affects the polishing.

[0006] A sander for plastic model parts is proposed to address the problems mentioned above. Utility Model Content

[0007] The purpose of this invention is to provide a polisher for plastic model parts, in order to solve the problem in the above-mentioned device in the background art where the parts are directly placed in the placement groove, and a certain degree of pressure is required between the polishing sponge and the parts during polishing. However, the depth of the placement groove is limited, and the limiting effect on the parts is limited. When the polishing sponge comes into contact with the parts, the parts are prone to displacement and shaking, which affects the polishing problem.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a sander for plastic model parts, including a processing table;

[0009] A fixing component is provided on one side of the top surface of the processing table, and a grinding mechanism is provided on the other side.

[0010] The fixing component includes a movable plate slidably mounted on the top surface of the processing table. A support plate is slidably connected to the top surface of the movable plate. A bending frame is fixedly connected to one side of the top surface of the support plate. A fixing stud is threadedly installed on the top of the bending frame. A side plate is fixedly connected to one side of the top surface of the movable plate. A lateral shifting stud is threadedly slidably connected to the top of the side plate. A movable spring is rotatably connected between the lateral shifting stud and the bending frame. A rotating pad is rotatably mounted on the top surface of the support plate.

[0011] The grinding mechanism includes a support plate that slides through the processing table, a pad is fixedly connected to the top of the support plate, a bending plate is fixedly connected to the top surface of the pad, and three rollers are rotatably installed on the inner side of the bending plate.

[0012] Preferably, the processing tabletop has an inner cavity, and a threaded rod is rotatably installed inside the inner cavity. A threaded sleeve is slidably connected to the threaded rod, and the threaded sleeve is fixedly connected to the moving plate.

[0013] Preferably, a rotating column is rotatably connected inside the lifting plate, the top end of the rotating column is fixedly connected to the bottom of the rotating pad, a worm gear is fixedly connected to the outside of the rotating column, and a worm is meshed with the side of the worm gear.

[0014] Preferably, a pressure pad is rotatably connected to the bottom end of the fixing stud.

[0015] Preferably, the grinding mechanism includes suspension columns symmetrically and fixedly connected to the bottom surface of the processing table, a threaded column is provided between the two suspension columns, a base plate is fixedly connected to the bottom end of the suspension column, and the threaded column is rotatably connected to the base plate.

[0016] Preferably, a sliding sleeve is slidably connected to the suspension column, and a threaded sleeve is slidably connected to the threaded column. The two sides of the threaded sleeve are fixedly connected to the sliding sleeve, and the outer side of the sliding sleeve is fixedly connected to the support plate.

[0017] Preferably, three types of sponge sandpaper with different roughness are fixedly installed on the outer side of the three rollers, and a drive motor is fixedly connected to the outer side of the bending plate. The output end of the drive motor is fixedly connected to the three rollers.

[0018] Compared with the prior art, the beneficial effects of this utility model are: This sander for plastic model parts allows for sanding of all four sides of the contact area between the fixed part and the sponge sandpaper, preventing the part's movement from affecting the sanding process. It also ensures sufficiently uniform sanding and allows the sponge sandpaper to sand different heights of the part without disassembling it, resulting in a more even sanding finish. The specific details are as follows:

[0019] 1. By rotating the fixing stud, the pressure pad is pressed against the part. Then, the lateral stud is rotated to move it and push the bending frame to move. This causes the lifting plate to bring the part closer to and against the section of the three-section rollers on which the relatively coarse sponge sandpaper is installed. By starting the drive motor, the three-section rollers are rotated, so that the sponge sandpaper polishes the part. At this time, the worm gear is rotated, which causes the worm wheel to drive the rotating column to rotate, which in turn causes the rotating pad to drive the part to rotate. This ensures that the parts are polished on all sides of the contact height with the sponge sandpaper, avoiding the shaking of the parts from affecting the polishing, and ensuring that the polishing of the parts is sufficiently uniform.

[0020] 2. By rotating the stud, the threaded sleeve moves the sliding sleeve, which in turn moves the support plate and the bending plate. This causes the height of the three rollers to gradually change, ultimately allowing the sponge sandpaper to sand the parts at different heights. After changing the mounting surface of the parts, the parts can be sanded more evenly. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the front cross-section structure of this utility model;

[0023] Figure 3 for Figure 2 Enlarged structural diagram of region A in the middle;

[0024] Figure 4 This is a side view schematic diagram of the installation structure of the suspension column and the threaded column;

[0025] Figure 5 This is a side view sectional diagram of the support plate.

[0026] In the diagram: 1. Processing table; 2. Fixed assembly; 201. Moving plate; 202. Lifting plate; 203. Bending frame; 204. Side plate; 205. Inner cavity; 206. Threaded rod; 207. Threaded sleeve; 208. Rotating pad; 209. Fixed stud; 210. Lateral stud; 211. Pressure pad; 212. Rotating column; 213. Worm gear; 214. Worm; 215. Movable spring; 3. Grinding mechanism; 301. Suspension column; 302. Base plate; 303. Threaded column; 304. Sliding sleeve; 305. Threaded sleeve; 306. Support plate; 307. Bending plate; 308. Three-section roller; 309. Drive motor. Detailed Implementation

[0027] 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 protection scope of the present utility model.

[0028] Please see Figure 1-5 The present invention provides a technical solution: a polisher for plastic model parts, including a processing table 1;

[0029] A fixing component 2 is provided on one side of the top surface of the processing table 1, and a grinding mechanism 3 is provided on the other side;

[0030] The fixed component 2 includes a movable plate 201 slidably mounted on the top surface of the processing table 1. A support plate 202 is slidably connected to the top surface of the movable plate 201. A bending frame 203 is fixedly connected to one side of the top surface of the support plate 202. A fixing stud 209 is threadedly installed on the top of the bending frame 203. A side plate 204 is fixedly connected to one side of the top surface of the movable plate 201. A lateral shifting stud 210 is threadedly slidably connected to the top of the side plate 204. A movable spring 215 is rotatably connected between the lateral shifting stud 210 and the bending frame 203. A rotating pad 208 is rotatably mounted on the top surface of the support plate 202. When irregular parts are subjected to pressure during grinding, the movable spring 215 will contract appropriately due to the pressure change of the grinding sponge, so that the parts will automatically avoid displacement due to the pressure change of the irregular surface during grinding.

[0031] The grinding mechanism 3 includes a support plate 306 that slides through the processing table 1. A pad is fixedly connected to the top of the support plate 306. A bent plate 307 is fixedly connected to the top surface of the pad. Three rollers 308 are rotatably installed on the inner side of the bent plate 307. A pair of bent plates 307 are rotatably installed on the top surface of the pad. The three rollers 308 are installed between the two bent plates 307.

[0032] The processing table 1 has an inner cavity 205. A threaded rod 206 is rotatably installed inside the inner cavity 205. A threaded sleeve 207 is slidably connected to the threaded rod 206. The threaded sleeve 207 is fixedly connected to the moving plate 201. After the threaded rod 206 passes through the processing table 1, a control handle is fixedly connected to it.

[0033] The lifting plate 202 is rotatably connected to a rotating column 212. The top of the rotating column 212 is fixedly connected to the bottom of the rotating pad 208. The rotating column 212 is fixedly connected to a worm gear 213. The worm gear 213 is meshed with a worm 214 on its side. An adjustment cavity is opened inside the lifting plate 202. The worm 214 passes through the front of the lifting plate 202 and is fixedly connected to a knob. The worm 214 is rotatably connected to the inner wall of the adjustment cavity.

[0034] The bottom end of the fixing stud 209 is rotatably connected to a pressure pad 211; the pressure pad 211 can press down the top of the part.

[0035] The grinding mechanism 3 includes suspension columns 301 symmetrically fixedly connected to the bottom surface of the processing table 1. A threaded column 303 is provided between the two suspension columns 301. A base plate 302 is fixedly connected to the bottom end of the suspension column 301. The threaded column 303 is rotatably connected to the base plate 302. The threaded column 303 is rotatably connected to the processing table 1. A knob is fixed after the threaded column 303 passes through the base plate 302.

[0036] A sliding sleeve 304 is slidably connected to the suspension column 301, and a threaded sleeve 305 is slidably connected to the threaded column 303. The two sides of the threaded sleeve 305 are fixedly connected to the sliding sleeve 304, and the outer side of the sliding sleeve 304 is fixedly connected to the support plate 306. Three different grades of sponge sandpaper are fixedly installed on the outer side of the three-section roller 308. A drive motor 309 is fixedly connected to the outer side of the bending plate 307, and the output end of the drive motor 309 is fixedly connected to the three-section roller 308. The parts contact the sponge sandpaper from coarse to fine.

[0037] Working principle: Before using this type of sander for plastic model parts, it is necessary to check the overall condition of the device to ensure it can function properly. Figure 1 - Figure 5 As shown, the part is first placed on the rotating pad 208, and the fixing stud 209 is rotated to press the pressure pad 211 onto the part. Then, the lateral displacement stud 210 is rotated to move it and push the bending frame 203 to move, so that the lifting plate 202 moves the part closer to and fits against the section of the three-section roller 308 on which a relatively rough sponge sandpaper is installed. The three-section roller 308 is rotated by starting the drive motor 309, so that the sponge sandpaper polishes the part.

[0038] At this time, rotating the worm gear 214 causes the worm wheel 213 to drive the rotating column 212 to rotate, which in turn causes the rotating pad 208 to drive the part to rotate, so that the parts can be polished on all sides of the contact height with the sponge sandpaper, avoiding the shaking of the parts from affecting the polishing.

[0039] By rotating the threaded column 303, the threaded sleeve 305 drives the sliding sleeve 304 to move, which in turn causes the support plate 306 to drive the bending plate 307 to move, thereby gradually changing the height of the three rollers 308. Ultimately, the sponge sandpaper can polish the parts at different heights, and after changing the mounting surface of the parts, the parts can be polished more evenly.

[0040] Finally, by rotating the threaded rod 206, the threaded sleeve 207 drives the moving plate 201 to move horizontally, so that the parts can come into contact with the polishing sponges of different roughness on the three rollers 308 without disassembly, thereby improving the efficiency and thoroughness of polishing.

[0041] Although the present invention 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, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A polisher for plastic model parts, including a processing table (1); Its features are, Also includes: A fixing component (2) is provided on one side of the top surface of the processing table (1), and a grinding mechanism (3) is provided on the other side; The fixing component (2) includes a movable plate (201) slidably mounted on the top surface of the processing table (1). A lifting plate (202) is slidably connected to the top surface of the movable plate (201). A bending frame (203) is fixedly connected to one side of the top surface of the lifting plate (202). A fixing stud (209) is threadedly installed on the top of the bending frame (203). A side plate (204) is fixedly connected to one side of the top surface of the movable plate (201). A side-shifting stud (210) is threadedly slidably connected to the top of the side plate (204). A movable spring (215) is rotatably connected between the side-shifting stud (210) and the bending frame (203). A rotating pad (208) is rotatably mounted on the top surface of the lifting plate (202). The grinding mechanism (3) includes a support plate (306) that slides through the processing table (1). A pad is fixedly connected to the top of the support plate (306), and a bending plate (307) is fixedly connected to the top surface of the pad. Three rollers (308) are rotatably installed on the inner side of the bending plate (307).

2. The sander for plastic model parts according to claim 1, characterized in that: The processing table (1) has an inner cavity (205) inside, and a threaded rod (206) is rotatably installed inside the inner cavity (205). A threaded sleeve (207) is slidably connected to the threaded rod (206), and the threaded sleeve (207) is fixedly connected to the moving plate (201).

3. The sander for plastic model parts according to claim 1, characterized in that: The lifting plate (202) is rotatably connected to a rotating column (212), the top of the rotating column (212) is fixedly connected to the bottom of the rotating pad (208), and a worm gear (213) is fixedly connected to the outside of the rotating column (212). A worm (214) is meshed with the side of the worm gear (213).

4. A sander for plastic model parts according to claim 1, characterized in that: The bottom end of the fixing stud (209) is rotatably connected to a pressure pad (211).

5. A sander for plastic model parts according to claim 1, characterized in that: The grinding mechanism (3) includes suspension columns (301) symmetrically fixedly connected to the bottom surface of the processing table (1), and a threaded column (303) is provided between the two suspension columns (301). The bottom end of the suspension column (301) is fixedly connected to a base plate (302), and the threaded column (303) is rotatably connected to the base plate (302).

6. A sander for plastic model parts according to claim 5, characterized in that: A sliding sleeve (304) is slidably connected to the suspension column (301), and a threaded sleeve (305) is threadedly slidably connected to the threaded column (303). The two sides of the threaded sleeve (305) are fixedly connected to the sliding sleeve (304), and the outer side of the sliding sleeve (304) is fixedly connected to the support plate (306).

7. A sander for plastic model parts according to claim 1, characterized in that: Three different grades of sponge sandpaper are fixedly installed on the outer side of the three-section roller (308), and a drive motor (309) is fixedly connected to the outer side of the bending plate (307). The output end of the drive motor (309) is fixedly connected to the three-section roller (308).

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