Shutter abrasive cloth wheel

Abstract

The utility model relates to the technical field of grinding tools, in particular to a shutter abrasive cloth wheel. Comprising an abrasive cloth wheel body, the abrasive cloth wheel body comprises a tray and a plurality of abrasive cloth pieces fixed to the tray, the abrasive cloth pieces are arranged on the tray in a fan shape, and the tray sequentially comprises a hole ring mounting part, an annular fixing part and an abrasive cloth piece mounting part from inside to outside; one end of each abrasive cloth piece is fixed to the side, close to the annular fixing portion, of the abrasive cloth piece installation portion, the other end of each abrasive cloth piece extends out of the abrasive cloth piece installation portion, the ratio of the outer diameter of the tray to the outer diameter of the abrasive cloth wheel body is 1: 1.125-1.3, and the abrasive cloth pieces are obliquely arranged on the abrasive cloth piece installation portion. An annular groove is formed in the side, close to the abrasive cloth piece, of the abrasive cloth piece installation part, a reinforcing part is arranged on the side, away from the abrasive cloth piece, of the abrasive cloth piece installation part, and the inner circumference and the outer circumference of the abrasive cloth piece are both arc lines. Through reasonable design of the outer diameters of the tray and the abrasive cloth wheel body, the actual utilization area of the shutter abrasive cloth wheel is increased.

Description

Technical Field

[0001] This utility model relates to the field of grinding tool technology, and in particular to a louvered abrasive wheel. Background Technology

[0002] Abrasive wheels play an important role in industrial production and are widely used in industrial processing. They are mainly used for grinding and polishing. From large-scale production of automobiles, ships, and aviation equipment to small-scale production of jade, shoe heels, and stainless steel products, a large number of abrasive wheels are needed. Abrasive wheels belong to the category of industrial consumables and are also necessities in industrial production.

[0003] Abrasive wheels typically consist of a set of abrasive sheets stacked in an orderly manner on a tray. The tray is mostly made of plastic or fiberglass mesh, and has mounting holes in the middle. It is fixed to a special tool or angle grinder through mounting ring holes for mechanical or manual grinding. The machine rotation drives the abrasive wheel to rotate at high speed.

[0004] The existing abrasive wheel has an unreasonable design ratio between the outer diameter of the tray and the outer diameter of the abrasive wheel body, resulting in a low utilization rate of the abrasive wheel. Usually, the abrasive wheel of a single louvered blade can not achieve the desired grinding effect if it is used less than 50% of the time, and the replacement frequency is high. Summary of the Invention

[0005] To address the problem of the unreasonable design ratio between the outer diameter of the tray and the outer diameter of the abrasive wheel body in existing abrasive wheels, this utility model proposes a louvered abrasive wheel. By rationally designing the outer diameters of the tray and the abrasive wheel body, the actual usable area of ​​the louvered abrasive wheel is improved.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A louvered abrasive wheel includes an abrasive wheel body, which comprises a tray and multiple abrasive pads fixed on the tray. The abrasive pads are arranged in a fan shape on the tray. The tray, from the inside out, includes a perforated ring mounting part, an annular fixing part, and an abrasive pad mounting part. One end of each abrasive pad is fixed to the side of the abrasive pad mounting part near the annular fixing part, and the other end extends out of the abrasive pad mounting part. The ratio of the outer diameter of the tray to the outer diameter of the abrasive wheel body is 1:1.125-1.3. The abrasive pads are inclined on the abrasive pad mounting part. The side of the abrasive pad mounting part near the abrasive pad has an annular groove, and the side away from the abrasive pad has a reinforcing part. Both the inner and outer circumferences of the abrasive pads are arc-shaped. Compared with existing abrasive wheels, this abrasive wheel has a larger abrasive area for grinding, increasing the grinding area and improving the usable area of ​​the abrasive pads, thus significantly increasing the applicable working conditions.

[0008] Furthermore, the abrasive cloth mounting part is inclined, with the inner side of the abrasive cloth mounting part being lower and the outer side being higher.

[0009] Furthermore, the angle between the uncovered end of the abrasive cloth and the diameter line of the abrasive cloth mounting part is between 2° and 8°. This improves the utilization rate of the abrasive cloth, thereby increasing the grinding efficiency and service life of the abrasive wheel.

[0010] Furthermore, the annular fixing part is inclined, with the inner side lower and the outer side higher. This avoids positional interference when the grinding wheel is installed on specialized grinding tools such as angle grinders.

[0011] Furthermore, the longitudinal section of the annular groove is semi-circular. The abrasive sheet is bonded to the abrasive sheet mounting part by adhesive, and more adhesive will remain in the groove, improving the adhesion strength of the abrasive sheet to the abrasive sheet mounting part.

[0012] Furthermore, the longitudinal section of the reinforcing part is semi-circular.

[0013] Through the above technical solution, the beneficial effects of this utility model are as follows: The outer diameter of the tray and the abrasive wheel body in this utility model is reasonably designed, which has a larger abrasive area for grinding compared with the existing abrasive wheels, increases the grinding area of ​​this abrasive wheel, improves the usable area of ​​the abrasive sheet, and greatly increases the applicable working conditions. At the same time, in order to deal with the strength problem caused by the abrasive sheet extending more out of the tray, an annular groove is added. When the abrasive sheet is glued to the tray by adhesive, more adhesive will be left in the groove, which improves the adhesion strength of the abrasive sheet to the abrasive sheet mounting part. The addition of a reinforcing part improves the outer circle strength of the tray, reduces the strength problem when the abrasive sheet extends a longer length out of the tray, and makes this abrasive wheel less prone to deformation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a louvered abrasive wheel according to the present invention;

[0015] Figure 2 This is a side view of a louvered abrasive wheel according to the present invention;

[0016] Figure 3 This utility model relates to a louvered abrasive wheel. Figure 2 Structural cross-sectional view at point AA;

[0017] Figure 4 This is a top view of the tray for a louvered abrasive wheel according to the present invention;

[0018] Figure 5 This utility model relates to a louvered abrasive wheel. Figure 4 Structural cross-sectional view at point BB;

[0019] Figure 6This is a top view of the abrasive wheel body of the present invention, which consists of a first type of abrasive cloth sheet bonded to a tray and multiple first type abrasive cloth sheets evenly arranged circumferentially on the tray.

[0020] Figure 7 This is a top view of the abrasive wheel body of the present invention, which consists of a second type of abrasive cloth sheet bonded to a tray and multiple second type abrasive cloth sheets evenly arranged circumferentially on the tray.

[0021] Figure 8 This is a top view of the abrasive wheel body of the present invention, which consists of a third type of abrasive cloth sheet bonded to a tray and multiple third type abrasive cloth sheets evenly arranged circumferentially on the tray.

[0022] In the attached diagram, the following numbers are used: 1 is the tray, 2 is the abrasive cloth, 3 is the annular groove, 4 is the reinforcing part, 11 is the hole ring mounting part, 12 is the annular fixing part, and 13 is the abrasive cloth mounting part. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0024] like Figures 1-5 As shown, this embodiment provides a louvered abrasive wheel, including an abrasive wheel body. The abrasive wheel body includes a tray 1 and a plurality of abrasive sheets 2 fixed on the tray 1. The plurality of abrasive sheets 2 are arranged in a fan shape on the tray 1, and the adjacent abrasive sheets 2 partially overlap, which can effectively improve the strength of the abrasive sheets 2.

[0025] The tray 1 includes, from the inside out, a perforated ring mounting part 11, an annular fixing part 12, and an abrasive sheet mounting part 13. One end of the abrasive sheet 2 is fixed to the side of the abrasive sheet mounting part 13 near the annular fixing part 12, and the other end extends out of the abrasive sheet mounting part 13. The ratio of the outer diameter of the tray 1 to the outer diameter of the abrasive wheel body is 1:1.125-1.3. The abrasive sheet 2 is inclined on the abrasive sheet mounting part 13. The abrasive sheet mounting part 13 has an annular groove 3 on the side near the abrasive sheet 2 and a reinforcing part 4 on the side away from the abrasive sheet 2. The longitudinal section of the annular groove 3 is semi-circular, and the longitudinal section of the reinforcing part 4 is semi-circular.

[0026] Compared to existing abrasive wheels, this louvered abrasive wheel extends the abrasive pad 2 beyond the tray 1 by a longer length (the ratio of the outer diameter of the tray to the outer diameter of the abrasive wheel body in existing louvered abrasive wheels is mostly around 1:1.1, which is a better design). This increases the usable area of ​​the abrasive pad 2. To ensure the bonding strength and structural strength even when the abrasive pad 2 extends beyond the tray 1 by a longer length, an annular groove 3 is added. When the abrasive pad 2 is glued to the tray 1, more adhesive will remain in the annular groove 3, improving the bonding strength of the abrasive pad 2 to the abrasive pad mounting part 13. A reinforcing part 4 is added to improve the outer circle strength of the tray 1, so that the service life of this louvered abrasive wheel can still be comparable to that of existing louvered abrasive wheels.

[0027] The perforated ring mounting part 11 is subsequently equipped with a perforated ring to mount the abrasive wheel on a special grinding tool such as an angle grinder. The abrasive sheet 2 consists of 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.

[0028] When grinding with a sanding wheel, the material on the object's surface is removed primarily through friction from the abrasive particles on the sanding cloth 2. Therefore, the choice of abrasive has a significant impact on processing efficiency. Abrasives can be materials such as alumina, silicon carbide, ceramic alumina, corundum, and synthetic diamond.

[0029] In this embodiment, tray 1 is a mesh substrate used for producing molds, and its main material is glass fiber. Figure 3 As shown, the abrasive pad mounting portion 13 is inclined, with its inner side lower and outer side higher, and the included angle between the abrasive pad mounting portion 13 and the horizontal annular mounting portion 11 is 8°. The annular fixing portion 12 is also inclined, with its inner side lower and outer side higher. This avoids positional interference when the abrasive wheel is installed on specialized grinding tools such as angle grinders. It also creates an inclined grinding surface on the upper surface of the abrasive wheel body, improving the usability of this louvered abrasive wheel. In this embodiment, the angle between the uncovered end of the abrasive pad 2 and the diameter line of the abrasive pad mounting portion 13 is between 2° and 8°. At this angle, the processable area of ​​the abrasive pad 2 is in an optimal state.

[0030] like Figures 6-8 As shown, three types of abrasive pads 2 are provided. The three types of abrasive pads 2 share the characteristic that both their inner and outer circumferences are curved. The difference lies in the shape of the inner and outer curved lines of the abrasive pads 2 and their different arrangements on the tray, thus forming three distinct louvered abrasive wheels.

[0031] In use, the abrasive wheel is mounted on a specialized grinding tool such as an angle grinder via the perforated ring mounting part 11. The grinding tool drives the abrasive wheel to rotate, thus performing grinding operations. Because this louvered abrasive wheel extends the abrasive pad 2 beyond the tray 1 by a longer length compared to existing abrasive wheels, the usable area of ​​the abrasive pad 2 is increased. Furthermore, the addition of an annular groove 3 and a reinforcing part 4 ensures that the service life of this louvered abrasive wheel remains comparable to that of existing louvered abrasive wheels.

[0032] 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 louvered abrasive disc comprising an abrasive disc body, the abrasive disc body comprising a tray (1) and a plurality of abrasive sheets (2) fixed on the tray (1), the plurality of abrasive sheets (2) being arranged in a fan shape on the tray (1), the tray (1) comprising, from inside to outside, a hole ring mounting portion (11), an annular fixing portion (12), and an abrasive sheet mounting portion (13), characterized in that, The sand cloth piece (2) is fixed at one end of the sand cloth piece mounting portion (13) near the annular fixing portion (12), and extends out of the sand cloth piece mounting portion (13) at the other end, the ratio of the outer diameter of the tray (1) to the outer diameter of the sand cloth wheel body is 1:1.125-1.3, the sand cloth piece (2) is arranged obliquely on the sand cloth piece mounting portion (13), an annular groove (3) is arranged on the side of the sand cloth piece mounting portion (13) near the sand cloth piece (2), and a reinforcing portion (4) is arranged on the side of the sand cloth piece mounting portion (13) away from the sand cloth piece (2), and the inner periphery and the outer periphery of the sand cloth piece (2) are both arc lines.

2. A louvered abrasive buffing wheel according to claim 1 wherein, The sand cloth piece mounting portion (13) is arranged obliquely, the inner side of the sand cloth piece mounting portion (13) is low, and the outer side is high.

3. A shuttered abrasive wheel according to claim 1 wherein, The angle between the uncovered end of the sand cloth piece (2) and the diameter line of the sand cloth piece mounting portion (13) is between 2° and 8°.

4. A shuttered abrasive wheel according to claim 1 wherein, The annular fixing portion (12) is arranged obliquely, the inner side of the annular fixing portion (12) is low, and the outer side is high.

5. The shuttered abrasive wheel of claim 1 wherein, The longitudinal section of the annular groove (3) is semicircular.

6. A shutter abrasive wheel according to claim 1 wherein, The longitudinal section of the reinforcing portion (4) is semicircular.

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