TWI613042B - Glued flat abrasive cloth wheel and manufacturing method thereof - Google Patents

Description

Glued flat abrasive cloth wheel and manufacturing method thereof

The present invention relates to an abrasive cloth wheel and a method of manufacturing the same, and more particularly to a flat abrasive cloth wheel using a glued type and a method of manufacturing the same.

The abrasive cloth wheel is generally installed on the shaft of the grinding machine in its center, and then the rotation of the shaft center drives the abrasive cloth wheel to rotate at a high speed to grind or polish the surface of the metal material.

Therefore, under high-speed operation, the overall bonding strength of the abrasive cloth wheel directly affects its safety in use. The components of the abrasive cloth wheel can be mainly divided into a mesh cover with a hole in the center and an abrasive cloth sheet bonded thereto; after a specific process, the abrasive cloth sheets are arranged in an annular stack and adhered to the annular sheet body of the mesh cover.

However, at present, the combination of the net cover and the sand cloth sheets on the market mostly relies on the glue on the bonding surface between the net cover and the abrasive cloth sheet, so that the bonding strength is not ideal, so it is also seen that the amount of glue is increased. In turn, the area of the gelatin distribution is increased to strengthen the bonding strength. However, the strength of such practices is increased but not aesthetically pleasing.

The main problem to be solved by the present invention is to utilize the existing structure of the modified mesh cover to enable the mesh cover of the present invention to be newly glued after assembly, and to solve the "appearance" and "gluing degree" of the abrasive cloth wheel. The problem of eliminating each other.

In order to achieve the above object, the present invention discloses a gluing type of flat abrasive cloth wheel, the structure comprising: a net cover, which is a circular disc body with a shaft hole in the center, and the outer periphery of the shaft hole is an annular concave a groove, the annular groove extends around a ring-shaped annular body, the annular piece system is an abrasive cloth sheet bonding portion; and a shaft hole piece has a ring-shaped body as a bottom portion and is convex on the inner edge of the annular piece a retaining wall structure, the retaining wall structure is disposed at the shaft hole of the net cover; a plurality of abrasive cloth sheets are annularly stacked and arranged on the sand cloth sheet bonding portion of the net cover, and the sand cloth pieces are respectively When the annular stack is arranged, the inner portion of the ring presents a height inner wall surface; a gel layer is formed by filling the annular groove of the mesh cover with the glue and forming the retaining wall structure of the shaft hole piece. The space is horizontally extended to the bonding portion of the abrasive sheet; and a rubber wall surface is filled into the accommodating space by the glue, and vertically stretched to a colloidal façade formed on the inner wall surface of the abrasive cloth sheets.

In one embodiment, the mesh cover is made of fiberglass material.

In an embodiment, the annular sheet of the mesh cover may be horizontal without a tilt angle.

In an embodiment, the annular sheet of the net cover may have an umbrella shape with an oblique angle; that is, the umbrella-shaped extension line has an acute or obtuse angle with the extension line of the annular groove.

In an embodiment, the shaft hole sheet is made of metal.

And a method for manufacturing the above-mentioned abrasive cloth wheel, comprising the steps of: providing an abrasive cloth wheel semi-finished product with the combination of the net cover, the shaft hole piece and the sand cloth pieces; performing centrifugal force sizing on the net cover The annular groove and the accommodating space formed by the retaining wall structure of the shaft hole sheet are injected into the colloid, and the semi-finished product of the abrasive cloth wheel after the injection of the rubber is coaxially rotated, so that the colloid in the accommodating space is rotated. The centrifugal force formed by the rotation is extended between the abrasive cloth sheets and the bonding surface of the abrasive cloth sheets, and adhered to the inner wall surface of the abrasive cloth sheets to form a rubber wall surface.

As described above, the present invention is characterized in that the shaft hole piece and the net cover are divided into two components which are assembled and assembled, and the accommodating space formed by assembling the shaft hole piece and the net cover is used for centrifugal force sizing, thereby achieving the following two types. The effect is to strengthen the bonding strength between the abrasive cloth piece and the net cover: 1. Using the coaxial rotating net cover, the glue in the accommodating space is horizontally extended to the bonding part of the abrasive cloth piece and the net cover by the centrifugal force; 2. The coaxial rotating net cover enables the colloid in the accommodating space to be vertically extended to the inner wall surface of the abrasive cloth piece due to the centrifugal force to form a rubber wall surface; it is known that the static solidification method of the dispensing requires the fluidity of the adhesive itself. Actively invade the small gap between the "sand cloth and the abrasive cloth sheet" and the "between the sand cloth sheet and the net cover" to have better fixation, but in practice it is easy to add due to the poor fluidity of the glue itself. Without the aid of external force, it is impossible to completely enter the above-mentioned fine gaps, so that the above two effects can effectively enhance the bonding strength between the abrasive cloth sheet and the net cover, and at the same time, the appearance of the abrasive cloth wheel structure.

1‧‧‧Abrasion wheel

11‧‧‧Net cover

111‧‧‧Axis hole

112‧‧‧ annular groove

113‧‧‧Ring sheet

1131‧‧‧Sand cloth fittings

12‧‧‧ shaft hole piece

121‧‧‧Ring sheet

122‧‧‧Retaining wall structure

13‧‧‧ abrasive cloth

131‧‧‧ inner wall

14‧‧‧ gel layer

141‧‧ ‧ gum

142‧‧‧ accommodating space

15‧‧‧Glue wall

1 is a schematic perspective view of an abrasive cloth wheel according to the present invention; FIG. 2A is a schematic view of a mesh cover and a shaft hole sheet according to the present invention; FIG. 2B is a schematic view of a semi-finished product of the abrasive cloth wheel according to the present invention; FIG. 2D is a cross-sectional view showing the structure of the abrasive cloth wheel according to the present invention.

The embodiments of the present invention are described in detail below with reference to the drawings. The drawings are a simplified schematic view of the basic structure of the present invention, and thus only the elements related to the present invention are indicated in the drawings, and the elements are not shown in the number, shape, The size ratio and the like are drawn, and the actual size of the specification is a selective design, and the component layout form may be more complicated.

First, a three-dimensional schematic view of the abrasive cloth wheel according to the present invention is referred to FIG. 1. As shown in the figure, the composition of the abrasive cloth wheel 1 includes a mesh cover 11 and a shaft hole plate coaxially disposed through the central shaft hole of the mesh cover 11. 12. A plurality of abrasive cloth sheets 13 attached to the mesh cover 11 in an annular stack, a rubber layer 14 poured into the annular groove of the mesh cover 11, and a rubber wall surface 15 extending perpendicularly distributed on the inner wall surface of the abrasive cloth sheet 13 .

For the detailed relative position and connection relationship between the components, please refer to FIG. 2A to FIG. 2D at the same time. FIG. 2A is a schematic diagram of the assembly of the mesh cover and the shaft hole sheet, the schematic diagram of the semi-finished product of the abrasive cloth wheel, the schematic diagram of the glue filling step and the abrasive cloth. A cross-sectional view of the wheel structure.

As shown in FIG. 2A and FIG. 2B, the glued flat abrasive cloth wheel 1 (shown in FIG. 1) of the present invention comprises a mesh cover 11 which is a circle with a shaft hole 111 in the center. The outer surface of the shaft hole 111 is an annular groove 112. The annular groove 112 extends around the annular sheet body 113. The annular sheet body 113 is a sand cloth sheet fitting portion; a shaft hole sheet 12, a ring body 121 as a bottom, and a retaining wall structure 122 is protruded from the inner edge of the ring body 121, the retaining wall structure 122 is disposed at the shaft hole 111 of the net cover 11; A plurality of abrasive cloth sheets 13 are arranged in a ring shape on the abrasive cloth sheet bonding portion of the mesh cover 11 (that is, at the position of the annular sheet body 113).

Please refer to FIG. 2C and FIG. 2D, and FIG. 2C and FIG. 2D are diagrams. 2A AA cross-sectional view; each of the abrasive cloth sheets 13 is arranged in a ring-shaped stack, the inner portion of the annular shape presents a height of the inner edge wall surface 131; and the space formed by the mesh cover 11 and the shaft hole sheet 12 is continuously filled with the glue 141 The space 142 is stretched horizontally to the abrasive sheet bonding portion (i.e., the position of the annular sheet 113 in Fig. 2A) to form a gel layer 14.

Next, the semi-finished product of the abrasive cloth wheel 1 after the injection of the rubber 141 is coaxially rotated, so that the rubber 141 in the accommodating space 142 is extended by the centrifugal force formed by the rotation to the bonding portion of the abrasive cloth sheet 13 and the abrasive cloth sheet (ie, FIG. 2A). A rubber wall surface 15 is formed between the inner edge wall surface 131 of the sand cloth sheets 13 and between the positions of the middle annular sheets 113.

In the above embodiment, the net cover 11 is made of a glass fiber material.

In the above embodiment, the annular sheet 113 of the net cover (as shown in FIG. 2A) may be horizontal without a tilt angle.

In the above embodiment, the annular sheet 113 (shown in FIG. 1) of the net cover may have an umbrella shape at an oblique angle; that is, an extension line of the umbrella-shaped annular body 113 and the annular groove 112. The extension line is at an acute or obtuse angle.

In the above embodiment, the shaft hole piece 12 is made of a metal material.

That is, the method of manufacturing the above-mentioned abrasive cloth wheel 1 is to provide a semi-finished product of the abrasive cloth wheel 1 (shown in FIG. 2B) with the combination of the mesh cover 11, the shaft hole piece 12 and the abrasive cloth pieces 13; 2C and FIG. 2D are subjected to centrifugal force sizing, and the annular groove 112 (shown in FIG. 2A) of the mesh cover 11 and the retaining wall structure 122 of the shaft hole piece 12 are as shown in FIG. 2A. The formed accommodating space 142 is injected into the colloid 141, and the semi-finished product of the emery cloth wheel 1 after the injection of the colloid 141 is coaxially rotated, so that the colloid 141 in the accommodating space 142 is extended by the centrifugal force formed by the rotation to the abrasive cloth sheets. 13 is formed between the abrasive sheet bonding portion (i.e., the position of the annular sheet 113 in FIG. 2A) and attached to the inner edge wall surface 131 of the abrasive sheet 13 to form a rubber wall surface 15.

As described above, the present invention is characterized in that the shaft hole piece 12 and the mesh cover 11 are divided into two components that are assembled and assembled, and the accommodating space 142 formed by assembling the shaft hole piece 12 and the mesh cover 11 is subjected to centrifugal force sizing. In order to achieve the following two effects, the bonding strength between the abrasive cloth sheet 13 and the mesh cover 11 is strengthened: 1. Using the coaxial rotating mesh cover 11, the glue 141 in the accommodating space 142 is horizontally extended to the abrasive cloth sheet 13 and the net due to the centrifugal force. The abrasive cloth cover portion of the cover 11; 2. Using the coaxial rotating mesh cover 11, the glue 141 in the accommodating space 142 is vertically extended to the inner edge wall surface 131 of the abrasive cloth sheet 13 by the centrifugal force, forming a rubber wall surface 15; Through these two effects, the bonding strength between the abrasive sheet 13 and the net cover 11 can be effectively enhanced, and at the same time, the structure of the abrasive cloth wheel 1 is beautiful.

The invention is applied to the use of a high-speed grinding machine, so the safety is highly valued in use, and the abrasive cloth wheel has two safety tests in use: one is the compressive strength of the net cover, and the second is The safe speed that can be withstand (at this safe speed, the abrasive cloth pieces will not fly out at high speed).

For comparison of the current abrasive cloth wheel with the pressure strength value and the safe speed value of the present invention, please refer to the following Table 1:

Please refer to Table 2 for the test results of the compressive strength of the present invention under different pressures:

Please refer to Table 3 for the safety speed test results of the invention at different speeds:

The test results of Tables 1 to 3 show that the glued flat abrasive cloth wheel of the present invention can substantially increase the safety of its use.

The embodiments or examples of the technical means adopted by the present invention are not intended to limit the scope of the practice of the present invention. That is, the equivalent changes and modifications made in accordance with the scope of the patent application of the present invention or the scope of the invention are covered by the scope of the invention.

1‧‧‧Abrasion wheel

11‧‧‧Net cover

12‧‧‧ shaft hole piece

13‧‧‧ abrasive cloth

14‧‧‧ gel layer

15‧‧‧Glue wall

Claims (9)

The utility model relates to a gluing type flat abrasive cloth wheel, which comprises: a net cover, which is a circular disc body with a shaft hole in the center, the outer periphery of the shaft hole is an annular groove, and the annular groove extends around the periphery. a ring-shaped sheet body, the annular sheet system is a sand cloth sheet bonding portion; a shaft hole sheet having an annular sheet body as a bottom portion, and a retaining wall structure protruding from the inner edge of the annular sheet body, the retaining wall structure The plurality of abrasive cloth sheets are arranged in an annular arrangement on the sand cloth sheet bonding portion of the net cover, and the annular inner sheets are respectively arranged when the sand cloth sheets are arranged in a ring shape. a height inner wall; a gel layer filling the annular recess of the mesh cover with the retaining space formed by the retaining wall structure of the shaft hole sheet, and horizontally extending to the abrasive cloth sheet And a rubber wall surface, which is filled into the accommodating space by the glue, and vertically stretched to a colloidal façade formed on the inner wall surface of the sand cloth sheets. The gluing type flat abrasive cloth wheel according to claim 1, wherein the mesh cover is made of a glass fiber material. The gluing type flat abrasive cloth wheel of claim 1, wherein the annular sheet of the net cover can be horizontal without a tilt angle. The gluing type flat abrasive cloth wheel according to claim 1, wherein the annular sheet body of the net cover has an umbrella shape with an inclined angle. The gluing type flat abrasive cloth wheel of claim 4, wherein the umbrella-shaped extension line and the extension line of the annular groove are at an acute angle. The gluing type flat abrasive cloth wheel of claim 4, wherein the umbrella-shaped extension line and the extension line of the annular groove are obtuse. The gluing type flat abrasive cloth wheel according to claim 1, wherein the shaft hole piece is made of a metal material. The gluing type abrasive cloth wheel of claim 1, wherein the level of the top surface of the inner wall surface is flat when the flat abrasive cloth wheel is placed under the net cover and the sand cloth pieces are placed on the upper side. The height is higher than the level of the top surface of the retaining wall structure. A method for manufacturing a gluing type of abrasive cloth wheel according to claim 1, wherein the method comprises the steps of: providing the gauze of the combination of the net cover, the shaft hole piece and the sand cloth piece of claim 1 a semi-finished product; performing centrifugal force sizing, injecting the glue into the accommodating space formed by the annular groove of the mesh cover and the retaining wall structure of the shaft hole piece, and coaxially rotating the semi-finished product of the abrasive cloth wheel after injecting the glue The gel in the accommodating space is extended by the centrifugal force formed by the rotation to the bonding portion between the abrasive cloth sheet and the abrasive cloth sheet, and adhered to the inner wall surface of the abrasive cloth sheet to form a rubber wall surface.