pva elastic anti-blocking abrasive belt and manufacturing method thereof

Abstract

The invention relates to a PVA elastic anti-blocking abrasive belt and a manufacturing method thereof. The PVA elastic anti-blocking adhesive belt comprises apolyvinyl alcohol concave-convex sponge, a PVC soft film, a bottom rubber layer, a composite rubber layer and an abrasive material, wherein a front face of the polyvinyl alcohol concave-convex sponge is covered with dot patterns, namely, patterns formed by a plurality of hemispherical salient points arranged uniformly, and voids between adjacent salient points are connected to form a communicating groove; the PVC soft film is formed on the back face of the polyvinyl alcohol concave-convex sponge; the front face of the polyvinyl alcohol concave-convex sponge is coated with the bottom rubber layer; the upper surface of the bottom rubber layer is coated with the composite rubber layer; the lower end of the abrasive material is embedded into the bottom rubber layer, and the upper end of the abrasive material protrudes from the upper surface of the composite rubber layer; and recessed positions, corresponding to the communicating groove, of the surface of the abrasive belt communicate with one another to form a chip removal groove. The PVA elastic anti-blocking abrasive belt has the properties of blocking prevention and elastic grinding, and also the advantages of simple process, low equipment investment, low cost, wear resistance, long service life, no toxicity, and the like.

Description

technical field [0001] The invention relates to the technical field of abrasive belts, in particular to an abrasive belt with a supercoat and a manufacturing method thereof. Background technique [0002] Abrasive belt is a kind of belt-shaped tool that can be ground and polished by using adhesive to bond abrasives to flexible substrates such as paper and cloth. Its basic components are: substrate, abrasive and bonding agent. [0003] Abrasive belt is a flexible abrasive tool. Abrasive belt grinding is a compound processing technology with multiple functions of grinding, grinding and polishing. It is more flexible and safer than solid abrasive grinding wheel during polishing, with higher precision and lower grinding cost. . [0004] However, when the abrasive belt grinds some soft surfaces, such as soft materials such as wood and paint, it is easy to have poor chip removal, that is, the debris generated by grinding is blocked on the surface of the abrasive belt, making the ...

AI Technical Summary

Problems solved by technology

Although the abrasive belt of this structure has advantages in chip removal and anti-blocking, due to the relatively small amount of abrasive on the surface of the abrasive belt, the grinding ability is reduced, and because it is coated with primer and compound glue in different areas, it is necessary to use The printing machine with high precision performs primer coating and regluing operations, and after the glue layer is cured, it needs to be washed with water or air to remove the floating sand in the chip removal groove

Therefore, this type of abrasive belt with flutes has high requirements both in terms of equipment cost and process complexity, so that the cost of the abrasive belt increases accordingly

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