High-strength polishing abrasive paper

Abstract

The utility model relates to the technical field of polishing abrasive paper, in particular to high-strength polishing abrasive paper which comprises a polishing abrasive paper body, the polishing abrasive paper body is composed of a back paper base layer and an abrasive paper layer, and a puncture-resistant protective layer is arranged at the end, facing the back paper base layer, of the abrasive paper layer. A tear-resistant paper layer is arranged at the end, facing the back paper base layer, of the puncture-resistant protective layer, an adhesive coating is arranged at the end, away from the abrasive paper layer, of the tear-resistant paper layer, a high-pressure-resistant elastic cushion layer is arranged at the end, away from the abrasive paper layer, of the back paper base layer, and a positioning buckle groove is formed in the high-pressure-resistant elastic cushion layer. An anti-skid damping coating is arranged on the inner wall of the positioning buckle groove, and an arc-shaped corner is arranged on the abrasive paper layer. The high-strength tear-resistant durability of the polishing abrasive paper body is improved, the situation that fingers slip off from the back paper base layer is avoided, and the situation that the pressed fingers are punctured due to the fact that sharp hard objects directly penetrate through the polishing abrasive paper body is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of polishing sandpaper, in particular to high-strength polishing sandpaper. Background Art

[0002] Polishing sandpaper is a tool used to grind and polish the surfaces of various materials. It is widely used in the processing of various materials such as wood, metal, and plastic.

[0003] Polishing sandpaper generally consists of an abrasive paper layer, an adhesive coating, and a backing paper base.

[0004] When polishing and grinding the surface of some large industrial equipment or heavy machinery, the polishing sandpaper body itself will be subjected to greater pressure. However, the existing polishing sandpaper body itself has weak compressive strength and is easily torn by high pressure, which greatly reduces the high-strength tear resistance and durability of the polishing sandpaper body.

[0005] Moreover, when using the existing polishing sandpaper body, the fingers of the left and right hands are generally pressed on the back paper base, and then the polishing sandpaper body is rubbed. Since the surface of the back paper base is flat and smooth, the pressing fingers are likely to slip off the back paper base.

[0006] In addition, when the existing polishing sandpaper body is being polished, if there are sharp hard objects on the polishing surface of the device, the sharp hard objects may directly penetrate the polishing sandpaper body and cause the pressing finger to be stabbed.

[0007] The above problems are widespread and urgently need to be improved. Utility Model Content

[0008] The utility model aims to solve the above-mentioned shortcomings in the prior art and proposes a high-strength polishing sandpaper.

[0009] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0010] A high-strength polishing sandpaper is designed, comprising a polishing sandpaper body, wherein the polishing sandpaper body consists of a back paper base and an abrasive paper layer, wherein a puncture-resistant protective layer is arranged at one end of the abrasive paper layer facing the back paper base, a tear-resistant paper layer is arranged at one end of the puncture-resistant protective layer facing the back paper base, an adhesive coating is arranged at one end of the tear-resistant paper layer away from the abrasive paper layer, a high-pressure-resistant spring pad layer is arranged at one end of the back paper base away from the abrasive paper layer, a positioning buckle groove is opened on the high-pressure-resistant spring pad layer, an inner wall of the positioning buckle groove is arranged with an anti-slip damping coating, and an arc-shaped corner is arranged on the abrasive paper layer.

[0011] Furthermore, the polishing sandpaper body is a circular structure as a whole, and the tear-resistant paper layer is made of Kevlar material and has a thickness of four hundred to four hundred and five microns.

[0012] Furthermore, the puncture-resistant protective layer is made of a glass fiber layer and has a thickness of six hundred to seven hundred microns.

[0013] Furthermore, the high-pressure resistant elastic pad layer is a rectangular strip structure as a whole and is arranged in the central part of the polishing sandpaper body. The high-pressure resistant elastic pad layer is made of EPDM ethylene propylene rubber and has a thickness of one to two millimeters.

[0014] Furthermore, the positioning buckle groove is opened on the high-pressure resistant spring pad layer, and the positioning buckle groove is divided into two groups that are symmetrical on the left and right, and each group has three grooves arranged longitudinally. The front view cross-section of the positioning buckle groove is an arc-shaped inner groove structure, and the anti-slip damping coating is evenly coated along the inner groove wall of the positioning buckle groove, and the anti-slip damping coating is a CR chloroprene rubber coating.

[0015] Furthermore, the adhesive coating is arranged between the tear-resistant paper layer and the back paper base layer.

[0016] Furthermore, the arc-shaped corners are evenly arranged along the corner ends of the lower side surfaces of the abrasive paper layer.

[0017] The high-strength polishing sandpaper proposed in the utility model has the following beneficial effects:

[0018] 1. The utility model arranges a high-pressure-resistant spring pad layer on the polishing sandpaper body, and arranges a tear-resistant paper layer structure between the back paper base and the abrasive paper layer, so as to effectively avoid the situation in which the polishing sandpaper body is torn due to high pressure when polishing and grinding the surface of some large industrial equipment or heavy machinery and equipment, thereby improving the high-strength tear-resistant durability of the polishing sandpaper body.

[0019] 2. The utility model provides a high-pressure spring cushion layer with a positioning buckle groove on the back paper base layer, and provides an anti-skid damping coating structure in the inner groove of the positioning buckle groove. When using the polishing sandpaper body, the index finger, middle finger and ring finger of the left and right hands can be conveniently and stably inserted into the positioning buckle grooves on both sides, respectively, to avoid the situation where the fingers slip off the back paper base layer.

[0020] 3. The utility model provides a puncture-resistant protective layer structure on the polishing sandpaper body. If sharp hard objects appear on the polishing surface of the equipment during polishing, it can prevent the sharp hard objects from directly penetrating the polishing sandpaper body and causing punctures to the pressing fingers. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the overall cross-section structure of the utility model;

[0022] Figure 2 For the utility model Figure 1 A partial enlarged view of the L in the middle;

[0023] Figure 3 It is a schematic top view of the overall structure of the utility model;

[0024] Figure 4 For the utility model Figure 3 Middle MM section;

[0025] Figure 5 For the utility model Figure 4 A partial enlarged view of point N in the middle.

[0026] In the figure: 1 polishing sandpaper body; 2 back paper base; 3 abrasive paper layer; 31 arc corner; 4 puncture-resistant protective layer; 5 tear-resistant paper layer; 6 adhesive coating; 7 high-pressure spring pad layer; 8 positioning buckle groove; 81 anti-slip damping coating. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] Reference Figure 1-5 A high-strength polishing sandpaper comprises a polishing sandpaper body 1, wherein the polishing sandpaper body 1 is composed of a back paper base 2 and an abrasive paper layer 3, wherein the end of the abrasive paper layer 3 facing the back paper base 2 is provided with a puncture-resistant protective layer 4, and the end of the puncture-resistant protective layer 4 facing the back paper base 2 is provided with a tear-resistant paper layer 5, and the end of the tear-resistant paper layer 5 away from the abrasive paper layer 3 is provided with an adhesive coating 6, and the end of the back paper base 2 away from the abrasive paper layer 3 is provided with a high-pressure spring pad layer 7, and a positioning buckle groove 8 is provided on the high-pressure spring pad layer 7, and the inner wall of the positioning buckle groove 8 is provided with an anti-slip damping coating 81, and the abrasive paper layer 3 is provided with an arc corner 31. The polishing sandpaper body 1 is a commonly used polishing sandpaper, wherein the back paper base 2 and the abrasive paper layer 3 are the basic structure of the polishing sandpaper body 1, which is the prior art.

[0029] In detail, the polishing sandpaper body 1 is a circular structure as a whole, and the tear-resistant paper layer 5 is made of Kevlar material and has a thickness of four hundred to four hundred and five microns. Kevlar material is a high-strength, high-modulus aramid fiber, a soft material, and has extremely high tear and cut resistance.

[0030] Furthermore, the puncture-resistant protective layer 4 is made of a glass fiber layer and has a thickness of six hundred to seven hundred microns. The glass fiber layer material has extremely high strength and puncture resistance. It is a soft material and can significantly improve the strength and puncture resistance of the polishing sandpaper body 1, thereby preventing the sharp hard objects on the polishing surface of the polishing equipment from directly penetrating the polishing sandpaper body 1 and causing the pressing fingers to be stabbed.

[0031] Furthermore, the high-pressure resistant spring pad layer 7 is a rectangular strip structure as a whole and is arranged in the central part of the polishing sandpaper body 1. The high-pressure resistant spring pad layer 7 is made of EPDM ethylene propylene rubber and has a thickness of one to two millimeters. The EPDM ethylene propylene rubber material has excellent aging resistance and pressure resistance. It is a soft material and can significantly improve the aging resistance and high-intensity pressing resistance of the top surface of the polishing sandpaper body 1, and is suitable for long-term use.

[0032] In more detail, the positioning buckle groove 8 is opened on the high-pressure resistant spring pad layer 7. The positioning buckle groove 8 is divided into two groups symmetrically, each group has three grooves arranged longitudinally. The front view cross-section of the positioning buckle groove 8 is an arc-shaped inner groove structure, which can realize the convenient and stable insertion of the index finger, middle finger and ring finger of the left and right hands, greatly improving the anti-detachment property of the fingers when polishing with the polishing sandpaper main body 1.

[0033] The anti-skid damping coating 81 is evenly coated along the inner groove wall of the positioning buckle groove 8. The anti-skid damping coating 81 is a CR chloroprene rubber coating. The CR chloroprene rubber coating has good weather resistance and elasticity, and has excellent damping and anti-skid performance and weather resistance, is wear-resistant and durable, and is suitable for harsh environments.

[0034] In general, the adhesive coating 6 is arranged between the tear-resistant paper layer 5 and the back paper base layer 2. The adhesive coating 6 is an epoxy resin glue, which has excellent bonding strength, chemical corrosion resistance, electrical insulation performance, and good heat resistance and aging resistance.

[0035] Finally, the arc corner 31 is evenly arranged along the lower side corner of the abrasive paper layer 3. When the polishing sandpaper body 1 is used for polishing, the arc corner 31 arranged at the lower side corner of the abrasive paper layer 3 improves the smoothness of the polishing sandpaper body 1 during the polishing process.

[0036] Working method: By arranging a high-pressure-resistant spring pad layer 7 on the polishing sandpaper body 1 and arranging a tear-resistant paper layer 5 structure between the back paper base layer 2 and the abrasive paper layer 3, it is effectively avoided that the polishing sandpaper body 1 is torn due to high pressure when polishing and grinding the surface of some large industrial equipment or heavy machinery equipment, thereby improving the high-strength tear-resistant durability of the polishing sandpaper body 1.

[0037] Moreover, when using the polishing sandpaper body 1, the index finger, middle finger and ring finger of the left and right hands can be conveniently and stably inserted into the positioning buckle grooves 8 on both sides respectively. Combined with the damping and anti-skid effect of the anti-skid damping coating 81, the fingers can be effectively prevented from slipping off the back paper base layer 2.

[0038] In addition, by providing a puncture-resistant protective layer 4 structure on the polishing sandpaper body 1, if sharp hard objects appear on the polishing surface of the device during polishing, it can be prevented that the sharp hard objects directly penetrate the polishing sandpaper body 1 and cause the pressing fingers to be stabbed.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-strength polishing sandpaper, comprising a polishing sandpaper body (1), characterized in that: The polishing sandpaper body (1) is composed of a back paper base (2) and an abrasive paper layer (3); a puncture-resistant protective layer (4) is provided at one end of the abrasive paper layer (3) facing the back paper base (2); a tear-resistant paper layer (5) is provided at one end of the puncture-resistant protective layer (4) facing the back paper base (2); an adhesive coating (6) is provided at one end of the tear-resistant paper layer (5) away from the abrasive paper layer (3); a high-pressure-resistant spring pad layer (7) is provided at one end of the back paper base (2) away from the abrasive paper layer (3); a positioning buckle groove (8) is provided on the high-pressure-resistant spring pad layer (7); an inner wall of the positioning buckle groove (8) is provided with an anti-slip damping coating (81); and an arc-shaped corner (31) is provided on the abrasive paper layer (3).

2. The high-strength polishing sandpaper according to claim 1, characterized in that: The polishing sandpaper body (1) is a circular structure as a whole, and the tear-resistant paper layer (5) is made of Kevlar material and has a thickness of 400 to 450 microns.

3. The high-strength polishing sandpaper according to claim 1, characterized in that: The puncture-resistant protective layer (4) is made of a glass fiber layer and has a thickness of 600 to 700 microns.

4. The high-strength polishing sandpaper according to claim 1, characterized in that: The high-pressure resistant elastic pad layer 7 is a rectangular strip structure as a whole and is arranged in the central part of the polishing sandpaper body (1). The high-pressure resistant elastic pad layer (7) is made of EPDM ethylene propylene rubber and has a thickness of one to two millimeters.

5. The high-strength polishing sandpaper according to claim 1, characterized in that: The positioning buckle grooves (8) are provided on the high-pressure resistant spring pad layer (7); the positioning buckle grooves (8) are formed into two groups symmetrically, each group having three grooves arranged longitudinally; the front view cross section of the positioning buckle grooves (8) is an arc-shaped inner groove structure; the anti-slip damping coating (81) is evenly coated along the inner groove wall surface of the positioning buckle groove (8); the anti-slip damping coating (81) is a CR chloroprene rubber coating.

6. The high-strength polishing sandpaper according to claim 1, characterized in that: The adhesive coating (6) is arranged between the tear-resistant paper layer (5) and the back paper base layer (2).

7. The high-strength polishing sandpaper according to claim 1, characterized in that: The arc-shaped corners (31) are evenly arranged along the corners of the lower side surfaces of the abrasive paper layer (3).

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