Canvas polishing device

Abstract

The utility model discloses a canvas polishing device, and relates to the field of canvas processing. The canvas polishing device comprises a polishing table and a belt type polishing machine, a compression spring is arranged at the top of the belt type polishing machine, the belt type polishing machine comprises a polishing belt and a waste collecting bin arranged at the top of the polishing belt, scraping teeth are arranged in the waste collecting bin, and a guide fan is installed at one end of the waste collecting bin. According to the canvas polishing device, the support is pressed downwards through the compression spring, the bottom of the polishing belt is made to be tightly attached to the surface of the canvas through the contact protruding block, the driving motor drives the polishing belt to rotate in the opposite direction, the canvas is evenly polished, it is ensured that the polishing belt can be tightly attached to the canvas during polishing, and meanwhile fluff generated during polishing adheres to the surface of the polishing belt; and then the grinding belt moves to the upper portion to make contact with scraping teeth, fluff on the surface of the grinding belt is scraped off through the scraping teeth, and meanwhile the guide fan directionally blows the fluff into the filtering and collecting box to complete collection.

Description

Technical Field

[0001] This utility model relates to the field of canvas processing technology, specifically a canvas polishing device. Background Art

[0002] When painting Thangka, the canvas needs to be sanded to remove impurities from the surface and make it smoother, so that the paint can adhere and soak in more easily during subsequent painting, effectively extending the paint adhesion time.

[0003] Traditionally, the canvas surface is sanded manually using hand-held sanding tools. This process is slow and prone to omissions and uneven sanding. Therefore, mechanical equipment is now widely used. The canvas is moved at a constant speed on a sanding table, and a power tool is used above the canvas for rapid and even sanding. Existing patent CN213225430U describes an electric sanding device for canvas. However, in this device, the contact between the sanding tool and the canvas is controlled by a telescopic rod, which cannot guarantee that the sanding tool can effectively adhere to the canvas surface. In addition, the collection of waste material after sanding relies solely on the air force of a fan, but the lint produced by sanding the canvas has strong adhesion and is difficult to remove. Therefore, this application provides a canvas sanding device to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a canvas polishing device that solves the problem of an electric canvas polishing device disclosed in the existing patent with publication number CN213225430U. In that device, the contact between the polishing part and the canvas is controlled by a telescopic rod, which cannot guarantee that the polishing part can effectively adhere to the canvas surface. Furthermore, the collection of waste material after polishing relies solely on the air force of a fan, while the lint produced during canvas polishing has strong adhesion and is difficult to be adsorbed.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a canvas sanding device, including a sanding table and a belt sander set on the top of the sanding table, a fixed frame is fixedly installed on the top of the sanding table, a compression spring is provided between the belt sander and the fixed frame, and the belt sander is tightly attached to the surface of the object to be sanded by the compression spring.

[0006] The belt grinder includes;

[0007] Grinding belt and waste collection bin located at the top of the grinding belt;

[0008] The scraper teeth are located inside the waste collection bin. The bottom end of the scraper teeth contacts the outer surface of the grinding belt. The scraper teeth are used to scrape off the debris adhering to the surface of the grinding belt.

[0009] A directional fan is installed at one end of the waste collection bin, and the directional fan is used to generate directional airflow to collect debris.

[0010] Preferably, the fixing frame includes;

[0011] The N-shaped bracket is mounted on top of the grinding table;

[0012] A positioning shaft penetrates the top wall of the N-shaped frame, and the compression spring is movably sleeved on the outer surface of the bottom end of the positioning shaft;

[0013] A lifting cylinder, which is mounted on the top of the N-shaped frame, is used to lift the belt grinder.

[0014] Preferably, the belt grinder further includes;

[0015] The bracket is fixedly installed at the bottom end of the positioning shaft, and the waste collection bin is installed at the top of the bracket;

[0016] A rotating roller is rotatably mounted on both sides of the bottom of the support, and the grinding belt is installed on the outer surface of the rotating roller;

[0017] A contact bump is fixedly installed at the bottom of the bracket, and the contact bump is used to push the bottom of the grinding belt downward.

[0018] Preferably, a drive motor is installed at one end of the bracket, and a transmission chain is installed between the drive motor and a set of rotating rollers.

[0019] Preferably, a filter collection box is installed at the end of the waste collection bin, and the filter collection box is used to store waste debris.

[0020] Preferably, the bottom end of the N-shaped frame is welded with a mounting component, which is fixedly mounted to the side of the grinding table by bolts.

[0021] Preferably, a lifting arm is fixedly installed on the top of the bracket, and the output end of the lifting cylinder is fixedly installed with the lifting arm.

[0022] This utility model discloses a canvas polishing device, which has the following beneficial effects: By setting a compression spring between the N-shaped frame and the support, the support is pressed down by the compression spring during use, so that the contact protrusion tightly adheres the bottom part of the polishing belt to the canvas surface. The canvas is evenly wound up from one end by a winding machine, so that the canvas slides at a uniform speed. At this time, the drive motor drives the polishing belt to rotate in the opposite direction to polish the canvas evenly, ensuring that it can adhere tightly to the canvas during polishing. At the same time, the lint generated by polishing adheres to the surface of the polishing belt. Then the polishing belt moves to the upper part and contacts the scraper teeth. The scraper teeth scrape off the lint from the surface of the polishing belt. At the same time, the guide fan blows the lint into the filter collection box for collection. Attached Figure Description

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is a schematic diagram of the overall outer surface structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the outer surface structure of the fixing frame of this utility model;

[0026] Figure 3 This is a schematic diagram of the outer surface structure of the belt grinder of this utility model;

[0027] Figure 4 This is a cross-sectional view of the top internal structure of the belt grinder of this utility model.

[0028] In the diagram: 1. Grinding table; 2. Fixing frame; 21. N-shaped frame; 22. Lifting arm; 23. Lifting cylinder; 24. Positioning shaft; 25. Compression spring; 26. Mounting component; 3. Belt grinder; 31. Support; 32. Waste collection bin; 33. Grinding belt; 34. Drive motor; 35. Transmission chain; 36. Filter collection box; 37. Contact protrusion; 38. Rotary roller; 39. Scraper teeth; 310. Guide fan. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] This application provides a canvas polishing device that solves the problem of an electric canvas polishing device disclosed in the prior art patent CN213225430U. In that device, the contact between the polishing part and the canvas is controlled by a telescopic rod, which cannot guarantee that the polishing part can effectively adhere to the canvas surface. In addition, the collection of waste material after polishing relies solely on the air force of a fan, while the lint produced by canvas polishing has strong adhesion and is difficult to be adsorbed.

[0031] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0032] This utility model discloses a canvas polishing device.

[0033] According to the appendix Figure 1-4 As shown, it includes a grinding table 1 and a belt grinder 3 set on the top of the grinding table 1. A fixing frame 2 is fixedly installed on the top of the grinding table 1. A compression spring 25 is provided between the belt grinder 3 and the fixing frame 2. The belt grinder 3 is tightly attached to the surface of the object to be ground by the compression spring 25.

[0034] The belt grinder 3 includes;

[0035] Grinding belt 33 and waste collection bin 32 located at the top of grinding belt 33;

[0036] The scraper tooth 39 is located inside the waste collection bin 32. The bottom end of the scraper tooth 39 contacts the outer surface of the grinding belt 33. The scraper tooth 39 is used to scrape off the debris adhering to the surface of the grinding belt 33.

[0037] A directional fan 310 is installed at one end of the waste collection bin 32. The directional fan 310 is used to generate directional airflow to collect debris.

[0038] The mounting bracket 2 includes;

[0039] N-shaped bracket 21 is mounted on top of grinding table 1;

[0040] The positioning shaft 24 passes through the top wall of the N-shaped frame 21, and the compression spring 25 is movably sleeved on the outer surface of the bottom end of the positioning shaft 24.

[0041] The lifting cylinder 23 is mounted on the top of the N-shaped frame 21 and is used to lift the belt grinder 3.

[0042] The belt grinder 3 also includes;

[0043] The bracket 31 is fixedly installed at the bottom end of the positioning shaft 24, and the waste collection bin 32 is installed at the top of the bracket 31;

[0044] Rotary roller 38 is rotatably mounted on both sides of the bottom of bracket 31, and grinding belt 33 is installed on the outer surface of rotary roller 38;

[0045] Contact protrusion 37 is fixedly installed at the bottom of bracket 31. Contact protrusion 37 is used to push the bottom of grinding belt 33 downward.

[0046] A drive motor 34 is installed at one end of the bracket 31, and a transmission chain 35 is installed between the drive motor 34 and a set of rotating rollers 38.

[0047] A filter collection box 36 is installed at the end of the waste collection bin 32. The filter collection box 36 is used to store waste.

[0048] The bottom end of the N-shaped frame 21 is welded with a mounting part 26, which is fixed to the side of the grinding table 1 by bolts.

[0049] A lifting arm 22 is fixedly installed on the top of the bracket 31, and the output end of the lifting cylinder 23 is fixedly installed with the lifting arm 22.

[0050] In summary, compared with existing technologies, it has the following beneficial effects:

[0051] The device uses a compression spring 25 between the N-shaped frame 21 and the support 31. In use, the compression spring 25 presses down the support 31, causing the contact protrusion 37 to press the bottom part of the sanding belt 33 tightly against the canvas surface. The canvas is then rolled up evenly from one end, allowing it to slide at a uniform speed. At this time, the drive motor 34 drives the sanding belt 33 to rotate in the opposite direction, sanding the canvas evenly and ensuring that it can stick tightly to the canvas during sanding. At the same time, the lint generated during sanding adheres to the surface of the sanding belt 33. Then, the sanding belt 33 moves to the upper part and contacts the scraper teeth 39. The scraper teeth 39 scrape off the lint from the surface of the sanding belt 33. Meanwhile, the guide fan 310 blows the lint directionally into the filter collection box 36 for collection.

[0052] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A canvas polishing device, comprising a polishing table (1) and a belt polisher (3) arranged on the top of the polishing table (1), characterized in that: A fixing frame (2) is fixedly mounted on the top of the grinding table (1), a compression spring (25) is provided between the belt grinder (3) and the fixing frame (2), and the belt grinder (3) is tightly attached to the surface of the object to be grinded via the compression spring (25); The belt sander (3) comprises: A grinding belt (33) and a waste collection bin (32) disposed on the top of the grinding belt (33); Scraping teeth (39) are arranged inside the waste collection bin (32), the bottom ends of the scraping teeth (39) are in contact with the outer surface of the grinding belt (33), and the scraping teeth (39) are used to scrape off debris adhered to the surface of the grinding belt (33); A guide fan (310) is installed at one end of the waste collection bin (32), and the guide fan (310) is used to generate a directional airflow to collect debris.

2. A canvas polishing device according to claim 1, characterized in that: The fixing frame (2) comprises: An N-shaped frame (21) mounted on the top of the grinding table (1); A positioning shaft (24) passes through the top wall of the N-shaped frame (21), and the compression spring (25) is movably sleeved on the outer surface of the bottom end of the positioning shaft (24); A lifting cylinder (23) is installed on the top of the N-shaped frame (21), and the lifting cylinder (23) is used to lift the belt sander (3).

3. A canvas polishing device according to claim 2, characterized in that: The belt sander (3) further comprises: A bracket (31) is fixedly mounted on the bottom end of the positioning shaft (24), and the waste collection bin (32) is mounted on the top of the bracket (31); Rollers (38) are rotatably arranged on both sides of the bottom of the bracket (31), and the grinding belt (33) is installed on the outer surface of the rollers (38); A contact protrusion (37) is fixedly mounted on the bottom of the bracket (31), and the contact protrusion (37) is used to push the bottom of the grinding belt (33) downward.

4. A canvas polishing device according to claim 3, characterized in that: A driving motor (34) is installed at one end of the bracket (31), and a transmission chain (35) is installed between the driving motor (34) and a group of rotating rollers (38).

5. The canvas polishing device according to claim 1, characterized in that: A filter collection box (36) is installed at the end of the waste collection bin (32), and the filter collection box (36) is used to store waste scraps.

6. A canvas polishing device according to claim 2, characterized in that: A mounting piece (26) is welded to the bottom end of the N-shaped frame (21), and the mounting piece (26) is fixed to the side of the grinding table (1) by means of bolts.

7. A canvas polishing device according to claim 3, characterized in that: A lifting arm (22) is fixedly mounted on the top of the bracket (31), and an output end of the lifting cylinder (23) is fixedly mounted on the lifting arm (22).

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