TWI677406B - Abrasive wheel structure capable of ensuring smooth grinding surface - Google Patents

Abstract

The invention relates to an abrasive cloth wheel structure capable of ensuring a smooth abrasive surface. The abrasive cloth wheel structure includes a base, a plurality of abrasive cloth sheets, and a cover. One of the bearing surfaces of the base is provided with the abrasive cloth sheets, and the abrasive cloth sheets are The cover is arranged in a ring shape in order, and the cover can cover the base and abut against the back of the abrasive cloth sheets. The invention is characterized in that a groove is recessed near the peripheral edge of the bearing surface to enable It is filled with an adhesive and adheres to one end of these abrasive cloth pieces. A circumferential pressure portion is provided on the periphery of the cover, and the cross-sectional configuration of the circular pressure portion is inclined. When the cover abuts to After the abrasive cloth sheets, the ring-shaped pressing part will press the part of the back of the abrasive cloth sheets adjacent to the other end to keep the abrasive surface formed on the front surface of the abrasive cloth sheets flat.

Description

   Abrasive wheel structure capable of ensuring smooth grinding surface   

The invention relates to an abrasive cloth wheel, in particular to an abrasive cloth wheel which can be provided with a ring-shaped pressing portion on the periphery of the cover body so that the abrasive surfaces formed by the front surfaces of a plurality of abrasive cloth pieces can be kept at the same level.

According to modern people's requirements for quality of life, when people buy various products, in addition to the practicality of the product, the appearance of the product has also become one of the important indicators for people to buy. Therefore, the industry often needs to specifically target The surface of the product is polished to gain consumer favor.

Generally speaking, the industry usually uses the "abrasive wheel (also called louver, louver)" to grind the surface of the object so that the object can form a predetermined shape, maintain the desired smoothness, or remove the welding points on the surface of the object. , Rust spots, etc. Among them, please refer to FIG. 1, the abrasive cloth wheel 1 is generally on a disc-shaped base 11, and a plurality of abrasive cloth pieces 12 are sequentially stacked in order to enable the abrasive cloth pieces 12 to surround A bearing surface 111 of the base 11 is arranged in a ring shape. In addition, a shaft hole 110 is provided in the center of the base 11 and the shaft hole 110 can be assembled with a rotating shaft of a device (such as a grinder) to The device can drive the abrasive cloth wheel 1 to rotate through the rotating shaft, so that the worker can bring an abrasive object (such as metal, glass, stone, etc.) close to the front face (ie, the back of the abrasive cloth sheet 12). (Toward the base 11), so that the abrasive cloth sheets 12 can remove the roughness of the surface of the object to be polished, so that the surface of the object to be polished can remain bright, smooth and detailed.

However, please refer to FIG. 1 again. The applicant found that when the abrasive cloth sheets 12 are attached to the base 11, the number (thickness) of the abrasive cloth sheets 12 overlapped closer to the shaft hole 110 will be greater than The number (thickness) of the abrasive cloth sheets 12 overlapped away from the shaft hole 110, and because the bearing surface 111 of the base 11 is horizontal, the thickness of the area of the abrasive cloth sheets 12 near the shaft hole 110 will be greater than the distance away from the shaft hole 110 In this case, the abrasive surface formed by the abrasive cloth sheets 12 (that is, the front surface of the abrasive cloth sheets 12) cannot be maintained at the same horizontal plane.

As mentioned above, please refer to Figure 1. When the user grinds at an angle perpendicular to the surface of the object on the axis of the abrasive cloth wheel 1, only the abrasive surface of one end of the abrasive cloth sheet 12 can touch the object to be ground. Surface, however, the abrasive surface at the other end of these abrasive cloth sheets 12 will form a gap with the surface of the object to be polished, so the grinding effect cannot be achieved. Therefore, in practice, users usually tilt the grinding machine to ensure that All the areas covered by the abrasive cloth sheet 12 can complete the grinding operation. However, in the foregoing operation methods, the user cannot know the inclination angle of the grinding surface, which makes it difficult for the user to adjust the grinding machine, resulting in the abrasive cloth sheet 12 not being evenly aligned. Forced grinding of the surface of the object affects the quality of the grinding, and at the same time, only a part of the abrasive cloth sheet 12 can be attached to the surface of the object, which makes the grinding efficiency poor.

In summary, it can be seen how to design a brand new abrasive cloth wheel structure in order to provide better working experience for the staff, which has become an important issue for many designers and manufacturers of abrasive cloth wheels.

Considering that there is still room for improvement in the conventional abrasive cloth wheel, the inventor finally relied on many years of practical experience and after many experiments and studies, he finally designed an abrasive cloth wheel structure of the present invention that can ensure a smooth abrasive surface. Can provide more well-structured abrasive cloth wheels.

An object of the present invention is to provide an abrasive cloth wheel structure capable of ensuring a smooth abrasive surface. The abrasive cloth wheel includes a base, a plurality of abrasive cloth pieces, and a cover. The base is disc-shaped, and the central position of the base is A first shaft hole is provided to be able to be fixed to a rotating shaft of a device, and a side surface thereof forms a bearing surface. The bearing surface is recessed with a groove near the peripheral edge to be filled with an adhesive. It is in the shape of a strip or a fan. Its front surface is evenly covered with a layer of abrasive particles of high hardness to form an abrasive surface. The portion near the back end is fixed to the carrier by the adhesive along the circumference of the base. On the surface, the portion of the back surface adjacent to the other end extends along the radial direction of the base beyond the outer edge of the bearing surface, and the adjacent abrasive cloth sheets are sequentially intersected along the circumference of the base. The cover is arranged in a ring structure, and a second shaft hole is provided at the center of the cover to be able to be fixed to the rotating shaft of the device and abut against the back of the abrasive cloth pieces. The configuration of the cover and the These abrasive cloth sheets are arranged in order The shape of the ring-shaped structure is matched, and a ring-shaped pressing portion is provided on the periphery of the ring-shaped pressing portion. The cross-sectional configuration of the ring-shaped pressing portion is inclined. The pressing part will press the part of the back of the abrasive cloth pieces adjacent to the other end, so that the abrasive surfaces formed by the front faces of the abrasive cloth pieces can be kept at the same level.

In order that the review committee can further understand and understand the purpose, technical features and effects of the present invention, the embodiments are described in detail with the drawings, as follows:

[Learning]

1‧‧‧ abrasive cloth wheel

11‧‧‧ base

110‧‧‧ Shaft hole

111‧‧‧bearing surface

12‧‧‧ Emery cloth

〔this invention〕

2‧‧‧ Abrasive Wheel

21‧‧‧ base

210‧‧‧First shaft hole

211‧‧‧bearing surface

213‧‧‧Groove

23‧‧‧ Emery cloth

230‧‧‧ giving way

25, 35‧‧‧ Lid

250, 350‧‧‧Second shaft hole

251, 351‧‧‧ annular pressure section

27‧‧‧ transfer to boost disk

270‧‧‧ adapter hole

353‧‧‧Connection Department

H‧‧‧ horizontal

Figure 1 is a schematic diagram of a conventional abrasive cloth wheel; Figure 2 is a schematic perspective view of the abrasive cloth wheel of the present invention; Figure 3 is an exploded schematic diagram of the abrasive cloth wheel of the present invention; and Figure 4 is a partial section of the base of the present invention Figure 5 is a schematic diagram of an embodiment of the cover body of the present invention; Figure 6 is a schematic side view of the abrasive cloth wheel of the present invention; Figure 7 is another embodiment of a cover body of the present invention; and Figure 8 is a schematic bottom view of the abrasive cloth wheel of the present invention.

The invention relates to an abrasive cloth wheel structure capable of ensuring a smooth grinding surface, and can be fixed to a device (such as a grinder). In an embodiment, please refer to FIGS. 2 and 3, the abrasive cloth wheel 2 includes a The base 21, a plurality of abrasive cloth sheets 23, and a cover 25, wherein the base 21 is disk-shaped and can be made of metal material, plastic material or other material, and a first shaft hole is opened in the center position thereof. 210, so that the base 21 can be fixed to the rotating shaft of the device through the first shaft hole 210, and a side surface of the base 21 forms a bearing surface 211, and the bearing surface 211 is concave adjacent to the peripheral edge. A groove 213 is provided (as shown in FIG. 4), so the worker can fill the groove 213 with adhesive.

In particular, please refer to FIG. 3 again. The “bearing surface 211” referred to in the present invention refers to the area of the base 21 corresponding to the abrasive cloth sheet 23 for placing the abrasive cloth sheet 23. In addition, In the embodiment, the central area on the other side of the base 21 will be raised, so that a large gap can be formed between the bearing surface 211 and the device, so that the worker can adjust the base during the grinding operation. At the angle of 21, it is not easy to be blocked by the device. However, in other embodiments of the present invention, the industry can change the material, structure and shape of the base 21 according to the product requirements, as long as the base 21 is recessed. The groove 213 containing the adhesive is referred to as the base 21 in the present invention.

Please refer to FIG. 3 again, the abrasive cloth pieces 23 are arranged radially on the base 21, wherein the abrasive cloth pieces 23 are elongated or fan-shaped, and the front surface is evenly covered with a layer of high The part of the abrasive particles with a hardness near the back is adhered to the bearing surface 211 along the circumference of the base 21 along the circumference of the base 21, and the part near the other end on the back is along the radial direction of the base 21 Extending beyond the outer edge of the bearing surface 211, the adjacent abrasive cloth sheets 23 are arranged in a circular structure in an overlapping order along the circumference of the base 21, that is, the adjacent abrasive cloth sheets 23 Part of the area will overlap each other and be arranged along the bearing surface 211 of the base 21. Since the arrangement of the abrasive cloth sheets 23 is a conventional technique, it will not be described in detail.

In this embodiment, please refer to FIG. 3 again. Since the adhesive is filled in the groove 213, during the bonding of the abrasive cloth sheets 23, the adhesive can be effectively prevented from being squeezed, and The overflow to the first shaft hole 210 caused troubles for subsequent cleaning of the staff. In addition, since the abrasive cloth pieces 23 are adhered to each other by adhesive, and are also adhered to the bearing surface 211 of the base 21, when the abrasive cloth wheel rotates, a worker can use the abrasive cloth pieces 23 The polishing surface formed on the front surface is used for polishing.

Please refer to FIG. 3 and FIG. 5, the cover 25 can be made of plastic material or glass fiber material, and a second shaft hole 250 is set at the center position to be able to be fixed to the shaft of the device, and It is abutted to the other side of the base 21 and the back of the abrasive cloth sheets 23. In particular, in the structure of the abrasive cloth wheel 2 of the present invention, the fixing method of the cover 25 and the base 21 is as follows : (1) The other side of the base 21 (ie, the position facing away from the bearing surface 211) is coated with an adhesive layer (such as glue), and the cover 25 is adhered to the base 21, so that the At least the peripheral position of the cover 25 can be abutted to the back of the abrasive cloth sheets 23; (2) The worker sequentially fixes the cover 25 and the base 21 on the rotating shaft, and uses the aforementioned fixing structure to force the cover 25 At least the peripheral position can be abutted to the back of the abrasive cloth sheets 23.

As shown in FIG. 3, no matter which way is mentioned above, there is no glue between the cover 25 and the abrasive cloth sheet 23 of the present invention. In this way, the glue can be prevented from penetrating into the abrasive cloth sheet 23. The front side allows the abrasive particles on the front side of the abrasive cloth sheets 23 to maintain the original grinding capacity.

Please refer to FIG. 3 and FIG. 5. The configuration of the cover 25 is matched with the configuration of the annular structure formed by the successive overlapping of the abrasive cloth sheets 23, and a peripheral pressure is provided on the periphery. The cross-sectional configuration of the ring-shaped pressing portion 251 is inclined. Taking FIG. 5 as an example, the ring-shaped pressing portion 251 will move from the inside to the outside in the direction of the abrasive cloth pieces 23 in the radial direction. That is, the upper part of FIG. 5) is inclined. In this way, when the cover 25 abuts on the abrasive cloth sheets 23, the annular pressing portion 251 will press the part of the back of the abrasive cloth sheets 23 adjacent to the other end so that The abrasive surfaces formed on the front surface of these abrasive cloth pieces 23 can be kept at the same horizontal plane H (such as the horizontal plane shown in FIG. 6), so as to maintain the flatness of the abrasive surface. Therefore, when the user operates the grinding machine, The grinding machine needs to be tilted, so that the entire grinding surface can fit the surface of the object, so as to improve the grinding efficiency.

In addition to the shape of the cover shown in FIG. 5, the industry can also adjust the detailed shape of the cover according to the design requirements of the product. In another embodiment of the present invention, please refer to FIG. 7, the cover 35 A second shaft hole 350 is opened at the center position, and an annular pressure portion 351 is provided on the periphery of the second shaft hole 350. The cross-sectional configuration of the annular pressure portion 351 is inclined so as to be able to compress a plurality of abrasive cloth pieces, thereby making the The abrasive surface formed by the front surface of the abrasive cloth sheet can be maintained at the same horizontal plane. Moreover, a connection portion 353 is formed between the annular pressure portion 351 and the second shaft hole 350. The configuration of the connection portion 353 is Match the configuration of the base to fit closely to the other side of the base. In particular, the "bearing surface 211" drawn in the fourth figure of the present invention is almost the same as the groove 213, but If the operator adjusts the configuration of the "bearing surface" so that the position on the right side of Fig. 4 extends horizontally, when the cover 35 is assembled on the aforementioned base, the connection portion 353 can be pressed against the base, which is not easy to use During the operation of the abrasive cloth wheel 2, there is a gap between the cover and the base. Too large voids cause problems such as shaking or affecting the grinding ability.

In addition, in this embodiment, please refer to FIG. 3 again. After each of the abrasive cloth pieces 23 is adhered to the base 21, one end edge of each of the abrasive cloth pieces 23 is respectively connected to the hole edge of the first shaft hole 210. A yielding space is maintained to form a yielding space 230 (that is, an area where the abrasive cloth sheet 23 does not cover the base 21). The yielding space 230 will communicate with the first shaft hole 210 and the second shaft hole 250. Furthermore, the abrasive cloth wheel 2 also includes a transfer reinforcing plate 27, one side of which can pass through the yielding space 230 and is fixed to a position of one side of the base 21 near the center for reinforcing the base. The structural strength of the seat 21 is also provided with an adapter hole 270 in the central position of the adapter reinforcement plate 27, and the adapter hole 270 is sequentially communicated with the first shaft hole 210 and the second shaft hole 250 so that When the base 21 is fixed to the shaft of the device through the first shaft hole 210 and the adapter hole 270, the adapter reinforcement disk 27 absorbs and buffers the stress and vibration force applied by the shaft of the device, thereby ensuring that The base 21 and the abrasive cloth sheets 23 fixed thereon can have a longer service life. Moreover, in this embodiment, please refer to FIG. 3 again. The transfer reinforcing plate 27 can be fixed on the base 21 in an adhesive manner, and its outer edge will be between one end edge of the abrasive cloth pieces 23. A glue groove is formed, and the worker can inject the glue into the glue groove, so that the abrasive cloth pieces 23 can be more tightly fixed on the base 21 to avoid the user from detaching the abrasive cloth pieces 23 during the grinding process. Love affairs.

According to the above, it is only the preferred embodiment of the present invention, but the scope of the rights claimed by the present invention is not limited to this. According to the technical content disclosed by those skilled in the art, Equivalent changes that can be easily considered should all belong to the protection scope of the present invention.

Claims (6)

An abrasive cloth wheel structure capable of ensuring a smooth grinding surface includes a base, which is disk-shaped, and a first shaft hole provided at a central position thereof, so as to be able to be fixed to a rotating shaft of a device, and a load is formed on one side thereof. A groove is formed in the bearing surface adjacent to the peripheral edge to be filled with an adhesive. A plurality of abrasive cloth sheets are in the shape of a strip or a fan. The front surface is evenly covered with a layer of abrasive particles with high hardness. A grinding surface is formed, and a portion of the back surface adjacent to one end is adhered to the bearing surface along the circumference of the base, and a portion of the back surface adjacent to the other end extends along the radial direction of the base beyond The outer edge of the bearing surface, and the adjacent abrasive cloth sheets are sequentially arranged in a ring structure along the circumference of the base; and a cover, a second shaft hole is opened at the central position, The cover can be fixed to the rotating shaft of the device and abutted to the other side of the base and the back of the abrasive cloth sheets. The cover body is formed by overlapping the abrasive cloth sheets in order. The configuration of the ring structure is matched, and the periphery of the ring structure is provided with a Shape, the cross-sectional configuration of the annular pressure portion is inclined. When the cover body is abutted against the abrasive cloth pieces, the annular pressure portion will press the back of the abrasive cloth pieces adjacent to the other end. So that the abrasive surfaces formed on the front side of these abrasive cloth pieces can be kept at the same level. The abrasive cloth wheel structure according to claim 1, wherein, in a state where each of the abrasive cloth pieces is adhered to the base, an end edge of each abrasive cloth piece and the hole edge of the first shaft hole respectively maintain a yielding distance, To form a yielding space, the yielding space will communicate with the first shaft hole and the second shaft hole. The abrasive cloth wheel structure as described in claim 2, further comprising a transfer reinforcement disc, one side of the transfer reinforcement disc can pass through the concession space and be fixed to a position of one side of the base near the center, In addition, a transfer hole is provided in the center of the transfer reinforcement disk, and the transfer hole is sequentially communicated with the first shaft hole and the second shaft hole and is passed by the rotation shaft of the device. The abrasive cloth wheel structure according to any one of claims 1 to 3, wherein the annular pressing portion is inclined from the inside to the outside in the direction of the abrasive cloth pieces along the radial direction of the cover. The abrasive cloth wheel structure according to claim 4, wherein a connection portion is still formed between the annular pressure portion and the second shaft hole, and the configuration of the connection portion matches the configuration of the base. So as to fit tightly to the other side of the base. The abrasive cloth wheel structure as described in claim 3, wherein an outer edge of the transfer reinforcing disc and an end edge of the abrasive cloth sheet form a glue groove, which can be used to inject glue to adhere to the Emery cloth pieces.