TW201822950A - Grinding member solving the problem of difficult heat dissipation due to coverage of the surface of the grinding member during a conventional implementation process - Google Patents

Abstract

A grinding member which comprises a grinding sheet and a connecting seat. The connecting seat is connected between the grinding sheet and a grinding hand tool. The grinding member has a gap formed between the connecting seat and the grinding sheet and communicates with the outside. A plurality of air guiding through holes are formed through the connecting seat and communicate with the gap. Accordingly, the air guiding through holes form an air current during the rotation process of the grinding member, so that thermal energy generated by the operation of the grinding member can be carried by the air current out of the air guiding through holes through the gap, thereby solving the problem of difficult heat dissipation due to coverage of the surface of the grinding member during a conventional implementation process.

Description

Abrasive parts

The present invention relates to an abrasive member, and more particularly to an abrasive member capable of effectively dissipating heat.

In view of the current problem that the polishing piece is overheated due to the high-speed rotation of the polishing piece during use, various manufacturers have developed technologies to reduce the temperature of the polishing piece. For example, the patent case of the Republic of China Patent Publication No. M531405 discloses a polishing adapter disc, which can be rotated by an electric driving tool to grind an object. The polishing adapter disc includes a disc body, a coupling member, a bearing assembly and a driving unit. The disk body has a plurality of escape holes, the coupling member is installed on the surface of the disk body and has a plurality of ventilation holes respectively communicating with one of the escape holes, the bearing assembly is installed on the disk body and can drive the disk body to rotate, The driving unit is connected between the bearing assembly and the electric driving tool. When the polishing adapter disc is in actual use, a polishing sheet can be connected to the coupling part by a matching coupling part, so that the polishing sheet can dissipate heat through the escape holes when the polishing sheet rotates with the disc body.

However, it can be found from the above-mentioned M531405 that due to the tight coupling between the coupling member and the mating coupling member (in one embodiment, the coupling member and the mating coupling member are formed by a hook-like structure and a loop of a devil felt) Structure), so that the surface of the abrasive sheet covered by the mating joint, the joint and the disc body will be difficult to dissipate heat, which will cause the abrasive sheet to have an excessively high temperature and be unfavorable to use.

The main object of the present invention is to solve the problem that the polishing sheet is difficult to dissipate heat due to the surface being covered in the conventional implementation.

To achieve the above object, the present invention provides an abrasive part, which is selectively assembled on an abrasive hand tool, and includes an abrasive sheet and a connection seat. The connecting seat is connected between the abrasive sheet and the abrasive hand tool. Wherein, the abrasive member has a gap formed between the connecting seat and the abrasive sheet and communicating with the outside, and the connecting seat is formed with a plurality of air guiding through holes communicating with the gap, and the air guiding through holes are formed in the connecting seat. During the rotation of the abrasive member, an air flow is formed to perform heat exchange on the abrasive sheet.

In one embodiment, the air-conducting through holes are arranged around the connecting seat. Wherein, the air-conducting through holes are disposed on the outer edge of the connecting seat. Further, the distances between any two of the air guiding through holes are the same as each other.

In one embodiment, the shapes of the air guiding through holes are all circular.

In one embodiment, the connecting seat has a concave surface facing the gap.

In an embodiment, the polishing sheet has a first assembling part disposed at the center of the surface of the abrasive sheet, and the connecting base has a second assembling part disposed in the center of the connecting base and for assembling and fixing the first assembling part.

Through the above embodiments, the present invention has the following characteristics compared with the conventional one:

According to the present invention, the gap is formed between the abrasive sheet and the connection seat, and the connection seat has the air-conducting through holes communicating with the gap, so that the airflow will flow into the gap due to the rotation of the grinding member. The thermal energy generated by the operation of the abrasive member is taken out of the air-conducting through holes, thereby solving the problem that it is difficult to dissipate heat due to the surface of the abrasive sheet being covered in the conventional implementation.

The detailed description and technical contents of the present invention are described below with reference to the drawings:

Please refer to FIG. 1 to FIG. 4. The present invention provides a grinding member 1. The grinding member 1 can be mounted on a grinding hand tool 2, so that the grinding hand tool 2 can rotate an grinding tool 1 against an object (FIG. (Not shown) The surface is polished. The abrasive member 1 includes an abrasive sheet 11 and a connecting base 12. The abrasive sheet 11 is mounted on one side of the connecting base 12. A gap 13 is formed between the abrasive sheet 11 and the connecting base 12 and communicates with the outside. Specifically, the surface of the abrasive sheet 11 may have abrasive particles (for example, metal or stone particles), and the connecting base 12 may be made of an elastic material (for example, rubber). Wherein, a plurality of air-conducting through-holes 121 are formed through the connecting seat 12, and the air-conducting through-holes 121 communicate with the gap 13, respectively. In one embodiment, the air-conducting through-holes 121 are arranged around the connection base 12, as shown in FIG. 4, and the distance between any two of the air-conducting through-holes 121 may be the same as each other. From the perspective of the assembly structure of the grinding plate 11 and the connecting base 12, the grinding plate 11 has a first mounting portion 111, and the connecting base 12 has a second mounting portion 122. The first mounting portion 111 can be installed. The second assembling portion 122 is fixed on the second mounting portion 122 to the side of the connecting base 12, as shown in FIG. 3. In one embodiment, the first assembling part 111 is a stud, and the second assembling part 122 is a screw hole for screwing and fixing the stud (ie, the first assembling part 111); in another implementation In an example, the first assembling portion 111 is a plurality of buckle pieces, and the second assembling portion 122 is a plurality of buckle holes respectively for one of the buckle pieces to be fastened.

The detailed composition of the abrasive member 1 can be clearly understood from the foregoing technical description. Herein, the present invention will further explain the use process of the abrasive member 1 and the implementation aspects generated by the use process. During the use of the abrasive part 1, the connecting base 12 is connected between the abrasive sheet 11 and the abrasive hand tool 2, so that the abrasive hand tool 2 can drive the abrasive sheet 11 through the connecting base 12 to rotate. In an embodiment, the connecting base 12 has a shaft hole 123, the grinding hand tool 2 has a driving shaft 21, the driving shaft 21 can be installed in the shaft hole 123, and the grinding hand tool 2 can be pneumatically operated. In a driving mode or an electric driving mode, the transmission shaft 21 is driven to rotate the grinding member 1. When the grinding member 1 is in contact with an object surface (not shown in the figure) for grinding operation, the gap 13 is formed between the grinding sheet 11 and the connection base 12 and the connection base 12 has The air guiding through holes 121 communicated with the gap 13, so that the air guiding through holes 121 will form an airflow during the rotation of the abrasive member 1. Wherein, the airflow will flow from the gap 13 between the abrasive sheet 11 and the connecting base 12 due to the rotation of the abrasive part 1, and then the abrasive part 1 will be passed from between the abrasive sheet 11 and the connecting base 12. The thermal energy generated during operation is taken out of the air-conducting through holes 121. In addition, if the abrasive sheet 11 is deformed by pressing the surface of the object, the airflow will flow from the side with the smaller space of the gap 13 to the side with the larger space of the gap 13 and part of the air conduction. The through hole 121 is discharged. According to this, the abrasive member 1 can perform heat exchange operation on the abrasive sheet 11 through the airflow generated in the air-conducting through holes 121 to dissipate heat, thereby solving the difficulty of the abrasive sheet being covered by the surface in the conventional implementation. Problems with heat dissipation.

In order to make the grinding member 1 have better heat dissipation effect when rotating, in an embodiment, as shown in FIG. 4, the shapes of the air guide holes 121 are circular, so that the airflow It is necessary to smoothly discharge the thermal energy from the air guide through holes 121. In addition, the air-conducting through-holes 121 may be disposed on the edge of the connection base 12 (that is, the air-conducting through-holes 121 are disposed near the outer side of the connection base 12), so that the airflow passes through the gap 13 After entering the space between the abrasive sheet 11 and the connection base 12, it can flow to the air-conducting through holes 121 quickly to discharge thermal energy. In addition to the foregoing two embodiments, the connecting base 12 has a concave surface 124 facing the gap 13. As shown in FIG. 3, the concave surface 124 will extend the gap 13 between the abrasive sheet 11 and the connecting base 12. This increases the heat dissipation space of the airflow.

The present invention has been described in detail above, but the above is only one of the preferred embodiments of the present invention. When the scope of implementation of the present invention cannot be limited by this, that is, the equality made according to the scope of patent application of the present invention Changes and modifications should still be covered by the patent of the present invention.

1‧‧‧ Abrasives

11‧‧‧ abrasive sheet

111‧‧‧First Assembly Department

12‧‧‧Connector

121‧‧‧ air guide through hole

122‧‧‧Second Assembly Department

123‧‧‧shaft hole

124‧‧‧ concave

13‧‧‧ clearance

2‧‧‧ Grinding Hand Tools

21‧‧‧Drive shaft

FIG. 1 is a schematic perspective view when the present invention is implemented. FIG. 2 is an exploded view of the present invention. FIG. 3 is a schematic side sectional view of the present invention. FIG. 4 is a schematic top view of the present invention.

Claims (7)

An abrasive member, which is selectively assembled on a grinding hand tool, includes: a grinding sheet; and a connecting seat connected between the grinding sheet and the grinding hand tool; wherein the grinding member has a formed on the connecting seat A gap is formed between the ground plate and the grinding plate and communicates with the outside. The connecting seat passes through and forms a plurality of air passage holes communicating with the gap. The air passage holes are formed during the rotation of the grinding piece to obtain the grinding. The sheet is heat exchanged by an airflow. The abrasive article according to claim 1, wherein the air-conducting through holes are arranged around the connection seat. The abrasive article according to claim 2, wherein the air-conducting through holes are disposed on an outer edge of the connecting seat. The abrasive article according to claim 3, wherein the distances between the air-conducting through holes are the same as each other. The abrasive article according to 2, 3, or 4, wherein the shapes of the air guiding through holes are all circular. The abrasive member according to 2, 3 or 4, wherein the connecting seat has a concave surface facing the gap. The abrasive part according to 2, 3 or 4, wherein the abrasive sheet has a first assembling part disposed at the center of the surface of the abrasive sheet, and the connecting base has an assembling part disposed in the center of the connecting base for the first assembling part to be fixed. Second assembly department.