Belt type polishing equipment for core rod machining

By designing a belt polishing device, which uses a sanding belt wheel and a motor to drive the sanding belt to polish the surface of the mandrel, the problem of burrs and scratches on the surface of the mandrel after production is solved, and efficient surface treatment and debris collection are achieved.

CN223998074UActive Publication Date: 2026-03-17CHANGZHOU JIACHANG MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

After the mandrel is manufactured, there are burrs and scratches on its surface, which need to be polished and ground for subsequent use.

Method used

A belt polishing device for mandrel processing was designed. The mandrel is fixed by a manual chuck, and the surface of the mandrel is polished by a sanding belt driven by a sanding wheel and a motor. The position of the sanding belt is adjusted by the cooperation of a limit rod, a lead screw and a slider. The adaptive structure of electric push rod and spring is combined to achieve adaptive polishing.

Benefits of technology

It achieves efficient grinding of the mandrel surface, removing burrs and scratches, and collects debris through a collection box to prevent excessive pressure from the sanding belt, thus improving grinding efficiency and effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides belt type polishing equipment for core rod machining, particularly relates to the technical field of core rod machining, and comprises an operation table, a core rod is placed on a manual chuck to be fixed, a fixing plate slides, the fixing plate is moved to the position where the end of the core rod can coincide with an abrasive belt, and then a lead screw is screwed to drive a sliding block to slide. The position of the support is adjusted, the grinding face of the abrasive belt makes contact with the surface of the core rod, then the first motor is started to drive the core rod to rotate, the second motor drives the abrasive belt wheel to rotate, the core rod is ground through the abrasive belt, the core rod can be better ground by sliding the fixing plate left and right, and during grinding, the electric push rod is retracted to drive the sliding frame to be in sliding connection with the support. And through the arrangement of a sliding rod and a spring, a certain self-adaptive effect can be achieved, and the abrasive belt is prevented from being pressed too much.
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Description

Technical Field

[0001] This utility model relates to the field of mandrel processing technology, and in particular to a belt polishing device for mandrel processing. Background Technology

[0002] A mandrel is a component of a mold used to form a contour surface within a pressed or sintered body in the pressing direction. After production, the mandrel will have some burrs and scratches on its surface. To facilitate subsequent use, the surface of the mandrel needs to be polished. Utility Model Content

[0003] The purpose of this invention is to provide a belt polishing device for mandrel processing, in order to solve the problem mentioned in the background art that after the mandrel is produced, there are some burrs and scratches on its surface, and in order to facilitate subsequent use, the surface of the mandrel needs to be polished.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a belt polishing device for mandrel processing, comprising an operating table, a switch fixedly connected to the top of the operating table, a sliding groove formed on the top of the operating table, a first feeding groove formed on the inner side of the sliding groove, a limit rod fixedly connected to the inner side of the sliding groove, a fixing plate slidably connected to the outer side of the limit rod, a first motor fixedly connected to one side of the fixing plate, a manual chuck fixedly connected to one end of the output shaft of the first motor, a handle fixedly connected to one side of the fixing plate, a fixing groove formed on the top of the operating table, a lead screw rotatably connected to the inner side of the fixing groove, a slider threadedly connected to the outer side of the lead screw, a bracket fixedly connected to the top of the slider, two sanding belt wheels rotatably connected to one side of the bracket, sanding belts being provided on the outer side of the sanding belt wheels, and a second motor fixedly connected to one side of the bracket.

[0005] Preferably, one end of the output shaft of the second motor is fixedly connected to one end of one of the sanding belt wheels, and the outer wall of the slider is in contact with the inner wall of the fixing groove.

[0006] Preferably, the inner wall of the slide groove is in contact with the outer wall of the fixing plate, and two limiting rods are provided.

[0007] Preferably, a second discharge groove is provided through the bottom of the inner cavity of the fixed groove, a collection box is fixedly connected to the bottom of the operating table, a guide surface is provided in the inner cavity of the collection box, and a discharge port is provided through the inner side of the collection box.

[0008] Preferably, an electric actuator is fixedly connected to the top of the bracket, a slide is fixedly connected to the output end of the electric actuator, a slide rod is slidably connected to one end of the slide rod, an abutment plate is fixedly connected to one end of the slide rod, and a spring is fixedly connected to one side of the abutment plate.

[0009] Preferably, one end of the spring is fixedly connected to the slide, the slide slides through the connecting bracket, and the spring is sleeved on the outside of the slide rod.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: When using this belt polishing equipment for mandrel processing, the mandrel is placed on a manual chuck and fixed. Then, the fixed plate is slidably connected to the limiting rod via the handle, thereby limiting the fixed plate. The fixed plate is moved to a position where the end of the mandrel can coincide with the sanding belt. Then, the screw is turned to drive the slider to slide, thereby adjusting the position of the bracket so that the grinding surface of the sanding belt contacts the surface of the mandrel. Then, the first motor is started to drive the mandrel to rotate, and the second motor drives the sanding belt wheel to rotate, thereby polishing the mandrel through the sanding belt. By sliding the fixed plate left and right, the mandrel can be polished better. During polishing, the electric push rod is retracted, which drives the slide to slide and connect with the bracket, so that the contact plate slightly pushes the sanding belt, making the sanding belt fit against the surface of the mandrel. Moreover, the setting of the slide rod and spring can play a certain self-adaptive effect and prevent excessive pressure on the sanding belt. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the structure of the fixed groove and the second feeding groove used in conjunction with this utility model;

[0013] Figure 3 This is a schematic diagram of the collection box structure of this utility model;

[0014] Figure 4 This is a schematic diagram of the structure of the sanding belt wheel and the second motor used in conjunction with this utility model;

[0015] Figure 5 This is a schematic diagram of the structure of the slide and the contact plate used in conjunction with this utility model.

[0016] In the diagram: 1. Control panel; 2. Switch; 3. First feeding chute; 4. Limit rod; 5. Fixing plate; 6. First motor; 7. Manual chuck; 8. Handle; 9. Fixing groove; 10. Second feeding chute; 11. Lead screw; 12. Slider; 13. Bracket; 14. Sanding belt wheel; 15. Second motor; 16. Collection box; 17. Guide surface; 18. Feed port; 19. Electric actuator; 20. Slide; 21. Slide rod; 22. Contact plate; 23. Spring. Detailed Implementation

[0017] 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.

[0018] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0019] Example

[0020] Please see Figure 1-5 This utility model discloses a belt polishing device for mandrel processing: It includes an operating table 1, a switch 2 fixedly connected to the top of the operating table 1, a slide groove on the top of the operating table 1, a first feeding groove 3 on the inner side of the slide groove, a limit rod 4 fixedly connected to the inner side of the slide groove, a fixing plate 5 slidably connected to the outer side of the limit rod 4, a first motor 6 fixedly connected to one side of the fixing plate 5, a manual chuck 7 fixedly connected to one end of the output shaft of the first motor 6, a handle 8 fixedly connected to one side of the fixing plate 5, a fixing groove 9 on the top of the operating table 1, a lead screw 11 rotatably connected to the inner side of the fixing groove 9, a slider 12 threadedly connected to the outer side of the lead screw 11, a bracket 13 fixedly connected to the top of the slider 12, and a sanding belt wheel rotatably connected to one side of the bracket 13. 14. Two sanding belt wheels 14 are provided. A sanding belt is provided on the outer side of the sanding belt wheel 14. A second motor 15 is fixedly connected to one side of the bracket 13. In use, the mandrel is placed on the manual chuck 7 and fixed. Then, the fixed plate 5 is slidably connected to the limit rod 4 through the handle 8, thereby limiting the fixed plate 5. The fixed plate 5 is moved to a position where the end of the mandrel can coincide with the sanding belt. Then, the screw 11 is turned to drive the slider 12 to slide, thereby adjusting the position of the bracket 13 so that the sanding surface of the sanding belt contacts the surface of the mandrel. Then, the first motor 6 is started to drive the mandrel to rotate, and the second motor 15 drives the sanding belt wheel 14 to rotate, thereby sanding the mandrel through the sanding belt. By sliding the fixed plate 5 left and right, the mandrel can be sanded better.

[0021] Furthermore, one end of the output shaft of the second motor 15 is fixedly connected to one end of a sanding belt wheel 14, and the outer wall of the slider 12 is in contact with the inner wall of the fixing groove 9.

[0022] Furthermore, the inner wall of the chute fits against the outer wall of the fixing plate 5, and two limit rods 4 are provided.

[0023] To collect the metal scrap, a second discharge trough 10 is provided through the bottom of the inner cavity of the fixed trough 9. A collection box 16 is fixedly connected to the bottom of the operating table 1. A guide surface 17 is provided in the inner cavity of the collection box 16. A discharge port 18 is provided through the inner side of the collection box 16. When the fixed plate 5 is moved, the iron filings in the chute will be scraped to the first discharge trough 3 and discharged. The slider 12 will scrape the metal scrap to the second discharge trough 10 and discharge it into the collection box 16, and then discharge it through the discharge port 18, which facilitates the collection of metal scrap.

[0024] For better grinding and polishing, an electric push rod 19 is fixedly connected to the top of the bracket 13. A slide 20 is fixedly connected to the output end of the electric push rod 19. A slide rod 21 is slidably connected to one end of the slide rod 20. A contact plate 22 is fixedly connected to one end of the slide rod 21. A spring 23 is fixedly connected to one side of the contact plate 22. During grinding, the electric push rod 19 retracts, causing the slide 20 to slide and connect with the bracket 13. This allows the contact plate 22 to slightly push the sanding belt, making the sanding belt adhere to the surface of the mandrel. The slide rod 21 and spring 23 provide a certain degree of self-adaptation, preventing excessive pressure on the sanding belt.

[0025] Furthermore, one end of the spring 23 is fixedly connected to the slide 20, the slide 20 slides through the connecting bracket 13, and the spring 23 is sleeved on the outside of the slide rod 21.

[0026] Working principle: In use, the mandrel is placed on the manual chuck 7 and fixed. Then, the fixed plate 5 is slidably connected to the limit rod 4 via the handle 8, thereby limiting the fixed plate 5. The fixed plate 5 is moved to a position where the end of the mandrel can coincide with the sanding belt. Then, the screw 11 is turned to drive the slider 12 to slide, thereby adjusting the position of the bracket 13 so that the sanding surface of the sanding belt contacts the surface of the mandrel. Then, the first motor 6 is started to drive the mandrel to rotate, and the second motor 15 drives the sanding wheel 14 to rotate, thereby sanding the mandrel through the sanding belt. By sliding the fixed plate 5 left and right, the mandrel can be sanded better. During sanding, the electric push rod 19 is retracted, which drives the slide 20 to slide and connect with the bracket 13, so that the contact plate 22 slightly pushes the sanding belt, making the sanding belt adhere to the surface of the mandrel. The setting of the slide rod 21 and the spring 23 can play a certain self-adaptive effect to prevent excessive pressure on the sanding belt.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A belt polishing apparatus for processing a mandrel, comprising an operation table (1), characterized in that: The top of the operating platform (1) is fixedly connected with a switch (2), the top of the operating platform (1) is provided with a sliding groove, the inner side of the sliding groove is provided with a first discharging groove (3), the inner side of the sliding groove is fixedly connected with a limiting rod (4), the outer side of the limiting rod (4) is slidably connected with a fixed plate (5), one side of the fixed plate (5) is fixedly connected with a first motor (6), the output shaft of the first motor (6) is fixedly connected with a manual chuck (7) at one end, one side of the fixed plate (5) is fixedly connected with a handle (8), the top of the operating platform (1) is provided with a fixed groove (9), the inner side of the fixed groove (9) is rotatably connected with a lead screw (11), the outer side of the lead screw (11) is threadedly connected with a sliding block (12), the top of the sliding block (12) is fixedly connected with a support (13), one side of the support (13) is rotatably connected with a sand belt wheel (14), the sand belt wheel (14) is provided with two, the outer side of the sand belt wheel (14) is provided with a sand belt, one side of the support (13) is fixedly connected with a second motor (15).

2. The belt polishing apparatus for processing a mandrel according to claim 1, characterized by: The output shaft of the second motor (15) is fixedly connected with one end of the sand belt wheel (14), and the outer wall of the sliding block (12) is in close contact with the inner wall of the fixed groove (9).

3. The belt polishing apparatus for processing a core rod according to claim 1, characterized by: The inner wall of the sliding groove is in close contact with the outer wall of the fixed plate (5), and the limiting rod (4) is provided with two.

4. The belt polishing apparatus for processing a core rod according to claim 1, characterized by: The inner cavity bottom of the fixed groove (9) is provided with a second discharging groove (10), the bottom of the operating platform (1) is fixedly connected with a collecting box (16), the inner cavity of the collecting box (16) is provided with a guide surface (17), and the inner side of the collecting box (16) is provided with a discharging port (18).

5. The belt polishing apparatus for processing a core rod according to claim 1, characterized by: The top of the support (13) is fixedly connected with an electric push rod (19), the output end of the electric push rod (19) is fixedly connected with a sliding frame (20), one end of the sliding frame (20) is slidably connected with a sliding rod (21), one end of the sliding rod (21) is fixedly connected with a contact plate (22), one side of the contact plate (22) is fixedly connected with a spring (23).

6. The belt polishing apparatus for processing a mandrel according to claim 5, wherein: One end of the spring (23) is fixedly connected with the sliding frame (20), the sliding frame (20) is slidably connected with the support (13), and the spring (23) is sleeved on the outer side of the sliding rod (21).