Abrasive paper mounting piece applied to handheld grinding machine

Abstract

An abrasive paper mounting part applied to a handheld polisher is used for shaping and fixing polishing abrasive paper on a reciprocating handheld polisher and structurally comprises a metal connecting rod and at least one group of abrasive paper shaping blocks made of an elastic material, the abrasive paper shaping block is of a polyhedral structure and used for being bonded with abrasive paper, and a connecting base is arranged at the top end of the abrasive paper shaping block. An adapter is arranged at the front end of the metal connecting rod and detachably connected with the connecting base, and the metal connecting rod is of an L-shaped structure. Due to the application of the technical scheme, according to the abrasive paper mounting piece applied to the handheld grinding machine, the elastic abrasive paper shaping block matched with the corners of the mold is used for shaping and fixing abrasive paper, so that the abrasive paper is more attached to the corners of the mold in the reciprocating grinding process, and the grinding efficiency is improved; the abrasive paper shaping block is detachably connected with the metal connecting rod, so that the abrasive paper shaping block can be conveniently replaced according to requirements; and the metal connecting rod of the L-shaped structure better conforms to the force exerting habit of a human body, so that the dead corners in the mold are more convenient to polish.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding and polishing, in particular to a sandpaper mounting part used for a handheld grinder. Background Art

[0002] Polishing refers to a processing method that uses mechanical, chemical or electrochemical effects to reduce the surface roughness of a workpiece to obtain a bright and smooth surface. It is a modification process of the workpiece surface using polishing tools and abrasive particles or other polishing media. Polishing is a very important process in the mold making process. With the increasing application of industrial products, the requirements for the appearance quality of industrial products are getting higher and higher. Correspondingly, the requirements for the surface finish of the mold cavity used to produce industrial products should also be improved accordingly.

[0003] In order to improve the surface finish of the mold, it is often necessary to grind and polish the surface of the cavity. Among them, when using sandpaper to grind and polish the surface of the mold, the traditional method is to use a polishing wheel or a file as a fixing device for the sandpaper. However, there are the following problems during use: First, the use of a polishing wheel to fix the sandpaper uses a rotating method to operate, and during the process of grinding the corners of the mold, a larger amount of grinding will be produced on the side walls at the corners; secondly, when using metal parts such as files to fix, during the reciprocating grinding operation, due to the high hardness of the metal parts, it is easy to collide with the side walls when grinding the corners, thereby reducing the grinding accuracy; the above problems will increase the difficulty of operation for operators and have a great impact on the efficiency and quality of grinding and polishing operations.

[0004] Therefore, in view of the deficiencies in the prior art, the utility model designs a sandpaper mounting member for a handheld sander to solve the above problems.

[0005] It should be noted that the above introduction to the technical background is only for the convenience of clearly and completely explaining the technical solution of the utility model and facilitating the understanding of those skilled in the art. It cannot be considered that the above contents are well known to those skilled in the art simply because they are explained in the background technology of the utility model. Utility Model Content

[0006] In order to overcome the deficiencies in the above-mentioned prior art, the purpose of the utility model is to provide a sandpaper mounting part for a handheld grinder, which is mainly used on reciprocating grinding equipment. The sandpaper is shaped and fixed by a sandpaper shaping block made of a polyhedron of elastic material, so that the shape of the sandpaper is adapted to the edges and corners of the mold to be polished, thereby improving the grinding efficiency during the reciprocating grinding process; at the same time, an L-shaped metal connecting rod is used to change the force application angle of the operation, thereby reducing the operational difficulty of the grinding operation.

[0007] In order to achieve the above-mentioned purpose and other related purposes, the technical solution provided by the utility model is to provide a sandpaper mounting part used for a handheld grinder, which is used to shape and fix the grinding sandpaper on a reciprocating handheld grinder, and its structure includes a metal connecting rod and at least one group of sandpaper shaping blocks made of elastic material; the sandpaper shaping block is a polyhedron structure, which is used to be bonded and connected with the sandpaper, and a connecting seat is provided at the top of the sandpaper shaping block; an adapter is provided at the front end of the metal connecting rod, and the adapter is detachably connected to the connecting seat, and the metal connecting rod is an L-shaped structure.

[0008] The preferred technical solution is: the material of the sandpaper shaping block is urethane foam, which has surface elasticity while ensuring that its overall shape remains unchanged.

[0009] The preferred technical solution is that the material of the sandpaper shaping block is wear-resistant rubber, which has good high temperature resistance and can maintain its strength without a sharp drop during continuous operation.

[0010] The preferred technical solution is that the sandpaper shaping block is a prism structure, which is mainly used for grinding the large surface of the mold and the non-inclined corners.

[0011] The preferred technical solution is: the sandpaper shaping block is a pyramid structure, which is mainly used for grinding angles and blind corners.

[0012] The preferred technical solution is that the connecting seat is a convex block structure, and the adapter is a sleeve structure corresponding to the convex block structure, which is convenient for disassembly and assembly, and is mainly used for connecting the sandpaper shaping blocks of the pyramid structure.

[0013] The preferred technical solution is: the connecting seat is a groove structure, and the adapter is a boss structure corresponding to the groove structure, which is convenient for disassembly and assembly, and is mainly used for connecting the sandpaper shaping block of the prismatic structure.

[0014] The preferred technical solution is: a positioning groove is provided on the outer periphery of the rear end of the metal connecting rod to facilitate the positioning and fixing of the metal connecting rod by a handheld grinder.

[0015] The preferred technical solution is: the L-shaped structural angle of the metal connecting rod is greater than 90°, which is more in line with the human body's working force application habits and reduces the difficulty of the grinding operation.

[0016] Due to the application of the above technical scheme, the utility model provides a sandpaper mounting part for a handheld grinder, in which an elastic sandpaper shaping block adapted to the corners of a mold shapes and fixes the sandpaper, so that the sandpaper and the corners of the mold are more closely fitted during the grinding process, thereby improving the grinding efficiency; the sandpaper shaping block and the metal connecting rod are detachably connected, which facilitates replacement of the sandpaper shaping block according to needs; the L-shaped metal connecting rod makes it more convenient to grind the dead corners inside the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1This is a structural schematic diagram of a sandpaper mounting member used for a handheld sander according to the utility model;

[0018] Figure 2 This is a schematic diagram of the assembly of a sandpaper mounting member used for a handheld sander in the first embodiment;

[0019] Figure 3 This is a schematic diagram of the assembly of a sandpaper mounting component used for a handheld sander in Example 2.

[0020] In the above drawings, 1. sandpaper shaping block; 11. connecting seat; 2. metal connecting rod; 21. adapter; 22. positioning groove; 3. hand-held sander. DETAILED DESCRIPTION

[0021] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0022] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third" and the like are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance. Terms such as "horizontal", "vertical", and "overhanging" do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0023] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Embodiment 1:

[0025] like Figure 1As shown, the utility model discloses a sandpaper mounting member for a handheld grinder, which is mainly used in a reciprocating or vibrating grinding device. The structure thereof includes a metal connecting rod 2 and a sandpaper shaping block 1 made of an elastic material. The main components of the utility model are described in detail below:

[0026] like Figure 1 and Figure 2 As shown, the sandpaper shaping block 1 is a pyramidal structure made of urethane foam, and is mainly suitable for grinding small space angles in a mold; a connecting seat 11 with a convex structure is provided at the top of the sandpaper shaping block 1.

[0027] like Figure 1 and Figure 2 As shown, the metal connecting rod 2 is an L-shaped structure, and the angle at the bending point is greater than 90°, which is convenient for the operator to grind; the front end of the metal connecting rod 2 is provided with a adapter 21 with a sleeve structure, which is used to be fixedly connected to the connecting seat 11, and the rear end of the metal connecting rod 2 is provided with a positioning groove 22, which is used to position and connect with the hand-held grinder 3.

[0028] refer to Figure 1 and Figure 2 As shown, when in use, the sandpaper is mounted on the surface of the sandpaper shaping block 1 through an adhesive. During the grinding process, the strength of the sandpaper shaping block 1 itself can meet the shaping requirements of the sandpaper; at the same time, its elasticity can avoid damage caused by collision with the mold during reciprocating grinding operations; the pyramid structure adopted by the sandpaper shaping block 1 makes it easier for the sandpaper on it to extend into the corners of the mold for grinding operations.

[0029] Embodiment 2:

[0030] like Figure 1 and Figure 3 As shown, the present embodiment is different from the first embodiment in that: the sandpaper shaping block 1 is a prismatic structure made of wear-resistant rubber material, and is mainly suitable for grinding large surface angles in a mold; and the adapter 21 at the front end of the metal connecting rod 2 is a groove structure, and the connecting seat 11 at the top of the sandpaper shaping block 1 is a boss structure, and the metal connecting rod 2 and the sandpaper shaping block 1 are plugged and fixed using the groove structure and the boss structure.

[0031] In summary, the sandpaper mounting member for a handheld sander disclosed in the utility model has the following advantages:

[0032] (1) The sandpaper shaping block made of elastic material is used to shape and fix the grinding sandpaper, making the connection of the sandpaper more convenient. At the same time, sandpaper shaping blocks of different shapes can be selected according to different needs, which helps to improve work efficiency and polishing accuracy.

[0033] (2) The sandpaper shaping block and the metal connecting rod are detachably connected, which facilitates the disassembly and assembly of the sandpaper shaping block.

[0034] (3) The L-shaped metal connecting rod is more in line with the human body's force habits and reduces the intensity of work.

[0035] (4) It is mainly used in reciprocating and reciprocating vibration grinding devices, which can effectively improve the grinding accuracy of mold corners.

[0036] The above embodiment provided by the utility model is only an example of the principle and effect of the utility model, and is not used to limit the utility model. Anyone familiar with this technology can modify or change the above embodiment without violating the spirit and scope of the utility model. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed by the utility model should still be covered by the claims of the utility model.

Claims

1. A sandpaper mounting member for a handheld sander, used to shape and fix sandpaper on a reciprocating handheld sander, characterized in that: The invention comprises a metal connecting rod (2) and at least one set of sandpaper shaping blocks (1) made of elastic material; the sandpaper shaping block (1) is a polyhedron structure and is used for bonding and connecting with sandpaper; a connecting seat (11) is provided at the top of the sandpaper shaping block (1); a conversion joint (21) is provided at the front end of the metal connecting rod (2); the conversion joint (21) is detachably connected to the connecting seat (11); and the metal connecting rod (2) is an L-shaped structure.

2. The sandpaper mounting member for a handheld sander according to claim 1, characterized in that: The material of the sandpaper shaping block (1) is urethane foam.

3. The sandpaper mounting member for a handheld sander according to claim 1, characterized in that: The material of the sandpaper shaping block (1) is wear-resistant rubber.

4. The sandpaper mounting member for a handheld sander according to claim 1, characterized in that: The sandpaper shaping block (1) is a prismatic structure.

5. The sandpaper mounting member for a handheld sander according to claim 1, characterized in that: The sandpaper shaping block (1) is a pyramid structure.

6. The sandpaper mounting member for a handheld sander according to claim 1, characterized in that: The connecting seat (11) is a convex block structure, and the adapter (21) is a sleeve structure corresponding to the convex block structure.

7. The sandpaper mounting member for a handheld sander according to claim 1, characterized in that: The connecting seat (11) is a groove structure, and the adapter (21) is a boss structure corresponding to the groove structure.

8. The sandpaper mounting member for a handheld sander according to claim 1, characterized in that: The outer periphery of the rear end of the metal connecting rod (2) is provided with a positioning groove (22).

9. The sandpaper mounting member for a handheld sander according to claim 1, characterized in that: The L-shaped structural angle of the metal connecting rod (2) is greater than 90°.

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