Elastic quick-change grinding sheet

Abstract

The utility model relates to grinding equipment technical field especially relates to a kind of elastic quick-change abrasive disc. Including base body and abrasive disc body, the hole ring is equipped in base body middle part, the opening is set in abrasive disc body corresponding hole ring place, the first connecting piece is fixed in the side of base body close to abrasive disc body, the second connecting piece is fixed in the side of abrasive disc body close to base body, after the first connecting piece and the second connecting piece are connected, the detachable connection of base body and abrasive disc body is realized. Through the detachable connection of base body and abrasive disc body, the reuse of grinding tool base body is realized, and production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of grinding equipment technology, and in particular to an elastic quick-change grinding disc. Background Technology

[0002] Grinding discs are tools used for grinding, polishing, and grinding. Most grinding wheels are man-made grinding wheels made of abrasive and binder, while some are natural grinding wheels made directly from natural minerals. In addition to being widely used in machinery manufacturing and other metal processing industries, grinding wheels are also used in food processing, papermaking, and the processing of non-metallic materials such as ceramics, glass, stone, plastics, rubber, and wood.

[0003] During the use of a grinding wheel, when the abrasive grains become dull, they partially or completely fall off the grinding wheel due to the fragmentation of the abrasive grains themselves or the breakage of the binder. New cutting edges or new sharp abrasive grains are constantly emerging on the working surface of the grinding wheel, allowing the grinding wheel to maintain its cutting performance for a certain period of time.

[0004] Existing abrasives are made by bonding multiple abrasive discs circumferentially and evenly onto a tray using a binder (e.g., Figure 7 After a period of use, the abrasive discs on the grinding wheel become worn and cannot be used anymore. Only a new grinding wheel can be replaced, and the base of the grinding wheel cannot be reused. Summary of the Invention

[0005] To address the problem that existing abrasive discs wear out after a period of use and cannot be reused, thus preventing the recycling of the abrasive mold substrate, this invention proposes an elastic quick-change abrasive disc. The substrate and the abrasive disc body are detachably connected through the connection of a first connector and a second connector, enabling the recycling of the abrasive mold substrate.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows: A flexible quick-change grinding disc includes a substrate and a grinding disc body. The substrate has a perforated ring in the middle, and the grinding disc body has an opening at the perforated ring. A first connector is fixed to the side of the substrate near the grinding disc body, and a second connector is fixed to the side of the grinding disc body near the substrate. After the first connector and the second connector are connected, the substrate and the grinding disc body are detachably connected.

[0007] Preferably, the first connector is a female hook and loop fastener, and the second connector is a female hook and loop fastener. The female hook and loop fastener is glued to the substrate, and the female hook and loop fastener is glued to the grinding disc body.

[0008] Preferably, the substrate has a first fixing surface and a second fixing surface arranged sequentially from the inside to the outside. The longitudinal section of the first fixing surface is arc-shaped, with its inner side lower and its outer side higher. The arc-shaped design allows the grinding disc body to increase the contact area with the workpiece when it is attached to the first fixing surface, resulting in a better grinding effect.

[0009] Preferably, the grinding disc body has multiple cutting slits at positions corresponding to the first fixed surface, with the ends of the cutting slits extending to the opening of the grinding disc body. These multiple cutting slits are evenly distributed circumferentially on the grinding disc body. This prevents wrinkles from forming when the grinding disc body is fixed on the curved surface, which would affect the workpiece grinding process.

[0010] Preferably, the substrate is a disc made of glass fiber or plastic. The substrate has a certain degree of elasticity, which can prevent the substrate from being worn down after the grinding disc itself wears down during the grinding process.

[0011] The beneficial effects of this utility model through the above technical solution are as follows: 1. In this utility model, a first connecting piece fixed on the side of the substrate near the grinding disc body is connected to a second connecting piece fixed on the side of the grinding disc body near the substrate. That is, by bonding the female hook and loop fasteners to the male hook and loop fasteners, the grinding disc body can be replaced on the substrate, thereby reusing the substrate of the grinding wheel, improving the service life of the substrate, and reducing grinding costs.

[0012] 2. The first fixing surface of the substrate of this utility model is designed with an arc surface, which can increase the contact area between the grinding disc body and the workpiece when it is attached to the first fixing surface, thereby improving the grinding effect of the grinding disc body on the workpiece; at the same time, the substrate has a certain elasticity, which ensures that the substrate is not damaged by grinding during the grinding process, and greatly improves the reusability of the substrate. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of an elastic quick-change grinding disc according to the present invention; Figure 2 This is a schematic diagram of the structure of an elastic quick-change grinding disc after the grinding disc body is separated from the substrate according to this utility model; Figure 3 This is a schematic diagram of the structure of the substrate of the elastic quick-change grinding disc of this utility model; Figure 4 This is a front view of an elastic quick-change grinding disc according to the present invention; Figure 5 This utility model relates to an elastic quick-change grinding disc. Figure 4 Enlarged view of the structure at point A in the middle; Figure 6 This is a bottom view of the substrate of the elastic quick-change grinding disc of this utility model; Figure 7 This is a schematic diagram of the structure of an existing grinding disc.

[0014] In the attached diagram, the numbers are as follows: 1 is the substrate, 2 is the grinding disc body, 3 is the female hook and loop fastener, 4 is the female hook and loop fastener, 5 is the hole ring, 6 is the first fixing surface, 7 is the second fixing surface, and 8 is the cutting seam. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: like Figures 1-6 As shown, this embodiment provides a flexible quick-change grinding disc, including a base 1 and a grinding disc body 2. Both the base 1 and the grinding disc body 2 are disc-shaped. The base 1 has a perforated ring 5 in the middle, which cooperates with a nut to install the quick-change grinding disc on a special grinding tool such as an angle grinder. The grinding disc body 2 has a circular opening corresponding to the perforated ring 5. A first connector, which is a female hook and loop fastener 3, is fixed to one side of the base 1 near the grinding disc body 2. The female hook and loop fastener 3 is glued to one side of the base 1. A second connector, which is a female hook and loop fastener 4, is fixed to one side of the grinding disc body 2 near the base 1. After the first connector and the second connector are connected, the base 1 and the grinding disc body 2 can be detachably connected. The female hook and loop fastener 3 and the female hook and loop fastener 4 are interlocked and can be repeatedly opened and closed, while completely covering the side of the base 1 or the grinding disc body 2 to ensure the firmness of the adhesion.

[0016] The grinding disc body 2 consists of an abrasive and a cloth base, with the abrasive located on the surface of the cloth base and bonded together by an adhesive; this is existing technology. When using a flexible, quick-change grinding disc for grinding, the material on the object's surface is primarily removed through friction from the abrasive on the grinding disc body 2. Therefore, the choice of abrasive has a significant impact on processing efficiency. Thus, the abrasive can be materials such as alumina, silicon carbide, ceramic alumina, corundum, or synthetic diamond.

[0017] refer to Figures 2-4 The substrate 1 has a first fixing surface 6 and a second fixing surface 7 arranged sequentially from the inside to the outside. The longitudinal section of the first fixing surface 6 is arc-shaped, with its inner side lower and its outer side higher. This avoids positional interference when the elastic quick-change grinding disc is installed on special grinding tools such as angle grinders, and also increases the contact area with the workpiece, resulting in better grinding effect. The substrate 1 is a disc made of glass fiber or plastic and has a certain degree of elasticity. The elasticity of the first fixing surface 6 on the substrate 1 is due to the elasticity of the second fixing surface 7, which can prevent the substrate 1 from being worn after the grinding disc body 2 wears during the grinding process.

[0018] Furthermore, the grinding disc body 2 has four cutting slits 8 at the position corresponding to the first fixing surface 6. The ends of the cutting slits 8 extend to the opening of the grinding disc body 2, and the four cutting slits 8 are evenly distributed circumferentially on the grinding disc body 2. The longitudinal section of the first fixing surface 6 is arc-shaped. When the grinding disc body 2 is adhered to the substrate 1, the arrangement of the four cutting slits 8 ensures that wrinkles are not formed at the position of the grinding disc body 2 corresponding to the first fixing surface 6, thus preventing any impact on the grinding process of the workpiece.

[0019] In use, the hole ring 5 is fixed to the output shaft of a special grinding tool such as an angle grinder using a nut. The angle grinder drives the flexible quick-change grinding disc to rotate, driving the grinding disc body 2 to grind the workpiece. After a period of use, the abrasive on the grinding disc body 2 is exhausted. After disassembling the female hook and loop fastener 3 and the female hook and loop fastener 4, a new grinding disc body 2 can be replaced for reuse. This allows the base 1 of the flexible quick-change grinding disc to be reused, thereby increasing the service life of the base 1 and reducing grinding costs.

[0020] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A flexible quick-change grinding disc, characterized in that, The device includes a substrate (1) and a grinding disc body (2). The substrate (1) has a hole ring (5) in the middle, and the grinding disc body (2) has an opening at the hole ring (5). A first connector is fixed on the side of the substrate (1) near the grinding disc body (2), and a second connector is fixed on the side of the grinding disc body (2) near the substrate (1). After the first connector and the second connector are connected, the substrate (1) and the grinding disc body (2) can be detachably connected. The substrate (1) is provided with a first fixing surface (6) and a second fixing surface (7) from the inside to the outside. The longitudinal section of the first fixing surface (6) is an arc surface, with the inner side being lower and the outer side being higher. The grinding disc body (2) has multiple cutting slits (8) at the position corresponding to the first fixed surface (6), and the ends of the cutting slits (8) extend to the opening of the grinding disc body (2).

2. The elastic quick-change grinding disc according to claim 1, characterized in that, The first connector is a female hook and loop fastener (3), and the second connector is a female hook and loop fastener (4).

3. The elastic quick-change grinding disc according to claim 1, characterized in that, Multiple cutting seams (8) are evenly distributed circumferentially on the grinding disc body (2).

4. The elastic quick-change grinding disc according to claim 1, characterized in that, The substrate (1) is a disc made of glass fiber or plastic.

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