Flexible anti-blocking coated abrasive tool

Abstract

The utility model provides a flexible anti-blocking coated abrasive tool. The coated abrasive tool sequentially comprises a base body layer, a bottom glue layer, an abrasive material layer, a composite glue layer and an anti-static anti-blocking coating from bottom to top. The base body layer is made of the chemical fiber gridding cloth which is softer and more breathable, meanwhile, the base body layer is provided with a plurality of small penetrating holes which are evenly distributed and consistent in hole diameter, the bottom adhesive layer is made of a modified polyurethane adhesive which is good in flexibility and impact resistance, and the composite adhesive layer is made of a modified urea-formaldehyde resin adhesive which is good in flexibility and good in lubricating and anti-blocking performance. The anti-static and anti-blocking coating is made of a coating material with good anti-static property, the coated abrasive tool is good in softness, high in strength, not prone to damage and resistant to abrasion when used, meanwhile, the anti-static and anti-blocking coating can be matched with the small penetrating holes of the base body layer to conduct good heat dissipation, and dust adsorption can be prevented. The coated abrasive tool can be well attached to a workpiece in the manual polishing process, and the hand feeling easier to control can be provided; and during mechanical polishing, more sufficient buffering can be provided, a good wrap angle is formed with a workpiece, and the polishing efficiency and precision are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coated abrasive tools, in particular to a flexible anti-clogging coated abrasive tool. Background Art

[0002] Coated abrasives are made by bonding abrasives to a flexible substrate (cloth or paper, etc.) using a binder. They are often used mechanically or manually, and are widely used for grinding, polishing and grinding metal materials, wood, ceramics, plastics, leather, rubber, and non-metallic materials such as paint putty. As a "universal grinding tool", coated abrasives not only have a wide processing range and high grinding efficiency, but also can achieve high dimensional accuracy and low surface roughness.

[0003] However, coated abrasives based on traditional substrates, such as sandpaper and emery cloth, are not soft enough and have poor conformability, making it difficult to precisely grind grooves and special-shaped surfaces. Improper operation can easily lead to overcutting. PET-based coated abrasives and TPU-based coated abrasives are soft but lack stiffness, making it difficult to balance grinding efficiency and precision during grinding. Wrap-type grinding of the workpiece requires reprocessing, with sponge and foam compounded on the back of the substrate. Utility Model Content

[0004] The purpose of the utility model is to provide a flexible anti-clogging coated abrasive to solve the problem that the coated abrasive of the traditional substrate is not soft enough and is easy to overcut due to improper operation or insufficient stiffness, which makes it difficult to balance the grinding efficiency and precision during grinding. The specific technical solution is as follows:

[0005] A flexible anti-clogging coated abrasive tool comprises, from bottom to top, a base layer, a base glue layer, an abrasive layer, a double glue layer and an antistatic anti-clogging coating. The base layer is provided with a plurality of evenly arranged through holes with consistent apertures.

[0006] Furthermore, the base material of the base layer is polyurethane artificial leather, the base material of the polyurethane artificial leather is chemical fiber mesh cloth, and the thickness of the base layer is 2-5 mm.

[0007] Furthermore, the material of the primer layer is a modified polyurethane adhesive, and the modified polyurethane adhesive is evenly coated on the base layer.

[0008] Furthermore, the abrasive of the abrasive layer includes at least one of brown corundum, white corundum, calcined alumina, and ceramics, and the abrasive is uniformly implanted in the base glue layer.

[0009] Furthermore, the material of the adhesive layer is a modified urea-formaldehyde resin adhesive, and the modified urea-formaldehyde resin adhesive is evenly coated on the abrasive layer.

[0010] Furthermore, the coating material of the antistatic anti-clogging coating includes sodium chloride, stearate, a leveling agent and a film-forming aid, and the coating material is evenly coated on the adhesive layer.

[0011] The flexible anti-clogging coated abrasive tool provided by the present invention has the following beneficial effects compared with the prior art:

[0012] 1. The utility model provides a flexible anti-clogging coated abrasive, wherein the base layer material is chemical fiber mesh cloth, the bottom adhesive layer is modified polyurethane adhesive, and the secondary adhesive layer is modified urea-formaldehyde resin adhesive, thereby improving the softness of the coated abrasive, and having high strength and being not easy to be damaged; the coated abrasive can not only fit well with the workpiece during manual grinding, but also provide a more controllable feel, and can provide more sufficient buffering during mechanical grinding, form a good wrap angle with the workpiece, and improve grinding efficiency and precision.

[0013] 2. The utility model provides a flexible anti-clogging coated abrasive, whose base layer has evenly arranged through holes and is combined with an antistatic anti-clogging coating layer, so that the coated abrasive has good heat dissipation, prevents dust adsorption, and has a good anti-clogging effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a structural schematic diagram of a flexible anti-clogging coated abrasive tool. DETAILED DESCRIPTION

[0015] The following will be combined with the accompanying drawings provided by the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. According to the following description, the advantages and features of the utility model will be clearer. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the utility model.

[0016] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connection" and "connected" should be interpreted in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0017] In the description of the present invention, terms such as "upper", "lower", "left", "right", "front", "back", "center", "horizontal", "vertical", "top", "bottom", "inside" and "outside" and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0018] Embodiment 1: This embodiment provides a flexible anti-clogging coated abrasive tool, see Figure 1 As shown, the coated abrasive tool comprises, from bottom to top, a base layer 1, a base layer 2, an abrasive layer 3, a double layer 4 and an antistatic anti-clogging coating 5. The coated abrasive tool has the advantages of good softness, high strength, not easy to break, anti-clogging and wear resistance.

[0019] As a specific embodiment of the base layer 1, the base layer 1 is a flexible composite material base, which is produced by a polyurethane artificial leather production process. Unlike the traditional polyurethane artificial leather which uses knitted cloth as the base material, the base material used in the polyurethane artificial leather is a chemical fiber mesh cloth, which can make the base layer 1 softer and more breathable. The thickness of the base layer 1 is 2-5 mm, so that the coated abrasive can not only fit well with the workpiece during manual grinding, but also provide a more controllable feel. At the same time, it can provide a more sufficient buffering effect during mechanical grinding, form a good wrap angle with the workpiece, and improve grinding efficiency and precision.

[0020] As a preferred embodiment of the base layer 1, there are multiple evenly arranged through holes with consistent apertures on the base layer 1, and the through holes are formed by mechanical punching. The through holes can enable the coated abrasive to discharge dust and grinding heat in time during grinding and polishing, thereby ensuring the grinding effect and extending the service life of the abrasive.

[0021] As a specific implementation of the base glue layer 2, the material of the base glue layer 2 is a modified polyurethane adhesive, which is evenly coated on the base layer 1 to form the base glue layer 2. In addition to being able to bond well with the base layer 1, the modified polyurethane adhesive also has good flexibility and impact resistance.

[0022] As a specific implementation of the abrasive layer 3 , the types of abrasives used in the abrasive layer 3 include but are not limited to brown corundum, white corundum, calcined alumina, and ceramic abrasives. The abrasives can be evenly implanted into the base glue layer 2 using an electrostatic sand implantation process.

[0023] As a specific implementation of the adhesive layer 4, the material of the adhesive layer 4 is a modified urea-formaldehyde resin adhesive. The modified urea-formaldehyde resin adhesive is evenly coated on the abrasive layer 3 to form the adhesive layer 4. The adhesive layer 4 is not only soft, water-resistant and heat-resistant, but also has good lubrication and anti-blocking properties.

[0024] As a specific embodiment of the antistatic anti-clogging coating 5, the coating material of the antistatic anti-clogging coating 5 mainly includes sodium chloride, stearate, a leveling agent and a film-forming aid, and the coating material is evenly coated on the adhesive layer 4 to form the antistatic anti-clogging coating 5. When the coated abrasive is used for grinding, the antistatic anti-clogging coating 5 can cooperate with the through holes of the base layer 1 to perform good heat dissipation and prevent dust adsorption.

[0025] The coated abrasive tool can also be used in conjunction with corresponding dust extraction equipment to achieve dust-free grinding.

[0026] Those skilled in the art should understand that the present invention can be implemented in many other specific forms without departing from the spirit and scope of the present invention, and all other embodiments obtained by those of ordinary skill in the art without making any creative work based on the embodiments of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A flexible anti-clogging coated abrasive tool, characterized in that: The coated abrasive tool comprises, from bottom to top, a base layer (1), a base glue layer (2), an abrasive layer (3), a double glue layer (4) and an antistatic anti-clogging coating (5), wherein the base layer (1) is provided with a plurality of evenly arranged through holes with consistent apertures.

2. The flexible anti-clogging coated abrasive tool according to claim 1, characterized in that: The base material of the base layer (1) is polyurethane artificial leather, the base material of the polyurethane artificial leather is chemical fiber mesh cloth, and the thickness of the base layer (1) is 2-5 mm.

3. The flexible anti-clogging coated abrasive tool according to claim 1, characterized in that: The material of the primer layer (2) is a modified polyurethane adhesive, and the modified polyurethane adhesive is evenly coated on the base layer (1).

4. The flexible anti-clogging coated abrasive tool according to claim 1, characterized in that: The material of the adhesive layer (4) is a modified urea-formaldehyde resin adhesive, and the modified urea-formaldehyde resin adhesive is evenly coated on the abrasive layer (3).

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