TW201918331A - Flap disc structure capable of ensuring smooth polished surface comprising a base, a plurality of abrasive cloth sheets and a cover body - Google Patents

Abstract

The present invention is a flap disc structure capable of ensuring a smooth polished surface, comprising a base, a plurality of abrasive cloth sheets and a cover body, wherein one of the bearing surfaces of the base is provided with the abrasive cloth sheets, and the abrasive cloth sheets are stacked and arranged in sequence into a ring shape, the cover body can cover the base and abuts against back surfaces of the abrasive cloth sheets. The present invention is characterized in that each bearing surface is concavely disposed with a groove adjacent to the peripheral edge, so that it can be filled with a glue and adhered to one end of the abrasive cloth sheet, the periphery of the cover body is provided with an annular pressing portion, the cross-sectional configuration of the annular pressing portion is inclined, after the cover body adheres to and abuts against the abrasive cloth sheets, the annular pressing portion presses back surfaces of the abrasive cloth sheets at locations adjacent to the other end, as a result, polished surfaces formed on the front surface of the abrasive cloth sheets are maintained smoothly.

Description

 Abrasive cloth wheel structure that ensures a smooth polished surface  

The present invention relates to an abrasive cloth wheel, and more particularly to an abrasive cloth wheel which can be provided with an annular pressing portion on the periphery of the cover body so that the polishing surface formed on the front surface of the plurality of abrasive cloth sheets can be maintained at the same horizontal plane.

According to the modern people's requirements for the quality of life, people buy more products. In addition to the practicality of the products, the appearance of the products has become one of the important indicators for people to buy. Therefore, the operators often need to specifically target The surface of the product is ground to obtain the favor of consumers.

In general, the manufacturer usually uses an "abrasive wheel (or a hundred impellers, a hundred sheets)" to grind the surface of the object so that the object can form a predetermined shape, maintain the desired smoothness, or remove the solder joint on the surface of the object. , rust spots, etc., wherein, as shown in Fig. 1, the abrasive cloth wheel 1 is generally superposed on a disk-shaped base 11 in order to superimpose a plurality of abrasive cloth pieces 12 so that the abrasive cloth pieces 12 can surround One of the bases 11 carries a surface 111 and is arranged in a ring shape. Further, a center of the base 11 is provided with a shaft hole 110, which can be assembled with a rotating shaft of a device (such as a grinder). The device can drive the abrasive cloth wheel 1 to rotate by the rotating shaft, so that the worker can bring a workpiece (such as metal, glass, stone, etc.) close to the front side of the abrasive cloth sheet 12 (ie, the back) In the direction of the susceptor 11, the abrasive cloth sheets 12 are capable of removing the roughness of the surface of the object to be polished, so that the surface of the object to be polished can be kept bright, smooth and fine.

However, as shown in FIG. 1 , the Applicant has found that when the abrasive cloth sheets 12 are attached to the susceptor 11, the number (thickness) of the abrasive cloth sheets 12 overlapping at the axial hole 110 is more than The number (thickness) of the abrasive cloth sheets 12 overlapped from the shaft hole 110, and since the bearing surface 111 of the base 11 is horizontal, the thickness of the sanding sheet 12 near the shaft hole 110 may be greater than the distance from the shaft hole 110. The thickness of the area, in this case, makes it impossible for the abrasive surfaces formed by the abrasive sheets 12 (i.e., the front side of the abrasive sheets 12) to remain in the same horizontal plane.

As described above, when referring to Fig. 1, when the user grinds the angle of the abrasive wheel 1 perpendicular to the surface of the object, only the polished surface of one end of the abrasive cloth 12 can contact the workpiece. The surface, however, the abrasive surface at the other end of the abrasive cloth sheet 12 forms a gap with the surface of the object to be ground, and the grinding effect cannot be achieved. Therefore, in practice, the user usually tilts the grinder to ensure such The grinding work can be completed in the area covered by the abrasive cloth sheet 12. However, the above operation method often causes the user to have no inclination to observe the angle of the polishing surface, which makes it difficult for the user to adjust the grinder, and the abrasive cloth sheets 12 are not evenly averaged. The surface of the object is applied by grinding, which affects the grinding quality. 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, how to design a new abrasive cloth wheel structure for the above problems, in order to provide a better use of the staff, that is, to become a design and manufacture of abrasive cloth wheel, is an important issue.

In view of the fact that there is still room for improvement in the conventional abrasive cloth wheel, the inventor, after years of practical experience, has finally designed an abrasive cloth wheel structure that ensures the smoothness of the abrasive surface after many experiments and research. An abrasive cloth wheel that provides a better structure.

An object of the present invention is to provide an abrasive cloth wheel structure capable of ensuring a smooth polishing surface, the abrasive cloth wheel comprising a base, a plurality of abrasive cloth sheets and a cover body, wherein the base is in the shape of a disk, and the central position thereof is A first shaft hole is defined to be fixed to a rotating shaft of a device, and a side surface thereof is formed with a bearing surface, and a concave groove is formed in the bearing surface adjacent to the peripheral edge to be filled with a glue, and the abrasive cloth system is In the shape of a strip or a fan, the front surface is evenly coated with a layer of high-hardness abrasive particles to form a polished surface, and a portion of the back side adjacent to one end is fixed to the load along the circumference of the base. a portion of the back surface adjacent to the other end extending in a radial direction of the base beyond the outer edge of the bearing surface, and the adjacent abrasive cloth sheets are sequentially disposed along the circumference of the base The stack is arranged in an annular structure, and a central shaft hole is defined in the central portion of the cover body so as to be fixed to the rotating shaft of the device and abut against the back surface of the abrasive cloth sheets, and the configuration of the cover body is The abrasive cloth pieces are arranged in an overlapping manner The configuration of the structure is matched, and an annular pressing portion is disposed on the periphery thereof, and the cross-sectional configuration of the annular pressing portion is inclined, and the ring is added in a state in which the cover abuts against the abrasive cloth sheets. The pressing portion presses the portion of the back surface of the abrasive cloth sheet adjacent to the other end so that the abrasive surfaces formed on the front surface of the abrasive cloth sheets can be maintained at the same horizontal plane.

For your convenience, the review committee can make a further understanding and understanding of the purpose, technical features and effects of the present invention. The embodiments are combined with the drawings, and the details are as follows:

[study]

1‧‧‧Abrasion wheel

11‧‧‧Base

110‧‧‧Axis hole

111‧‧‧ bearing surface

12‧‧‧ abrasive cloth

〔this invention〕

2‧‧‧Abrasion wheel

21‧‧‧Base

210‧‧‧First shaft hole

211‧‧‧ bearing surface

213‧‧‧ trench

23‧‧‧ abrasive cloth

230‧‧‧Let space

25, 35‧‧‧ cover

250, 350‧‧‧ second shaft hole

251, 351‧‧ ‧ ring pressurization

27‧‧‧Transfer reinforcement disk

270‧‧‧Transfer hole

353‧‧‧Connecting Department

H‧‧‧ water level

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

The present invention is 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, as shown in Figures 2 and 3, the abrasive cloth wheel 2 includes a a base 21, a plurality of abrasive cloth sheets 23 and a cover body 25, wherein the base 21 is in the shape of a disk and can be made of a metal material, a plastic material or the like, and a first shaft hole is formed at a central position thereof. 210, so that the base 21 can be fixed to the rotating shaft of the device by the first shaft hole 210. Further, one side of the base 21 is formed with a bearing surface 211, and the bearing surface 211 is concave adjacent to the peripheral position. A groove 213 is provided (as shown in Fig. 4) so that a worker can fill the groove 213 with the glue.

In particular, the term "bearing surface 211" as used in the present invention refers to the area where the base 21 corresponds to the abrasive cloth sheet 23 for placing the abrasive cloth sheet 23, and in addition, In the embodiment, the central portion of the other side of the base 21 is embossed 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. The angle of 21 is not easily blocked by the device. However, in other embodiments of the present invention, the material, structure and shape of the base 21 can be changed according to product requirements, as long as the base 21 is recessed. The groove 213 for accommodating the adhesive is the base 21 referred to in the present invention.

Referring to FIG. 3, the abrasive cloth sheets 23 are radially arranged on the base 21, wherein the abrasive cloth sheets 23 are elongated or fan-shaped, and the front surface is evenly covered with a high layer. The hardness of the abrasive particles, the portion of the back side adjacent to the one end is fixed to the bearing surface 211 by the adhesive along the circumference of the base 21, and the portion of the back side adjacent to the other end 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 sequentially arranged in an annular structure along the circumferential direction of the base 21, that is, adjacent abrasive cloth sheets 23 The partial regions overlap each other and are arranged along the bearing surface 211 of the base 21. Since the arrangement of the abrasive cloth sheets 23 is a conventional technique, detailed description thereof will be omitted.

In this embodiment, as shown in FIG. 3, since the adhesive is filled in the groove 213, in the process of bonding the abrasive cloth sheets 23, the adhesive can be effectively prevented from being squeezed. The overflow to the first shaft hole 210 causes troubles for subsequent cleaning of the worker. In addition, since the abrasive cloth sheets 23 are adhered to each other by the adhesive and adhered to the bearing surface 211 of the base 21, the worker can use the abrasive cloth sheets 23 when the abrasive cloth wheel rotates. The polishing surface formed on the front surface is subjected to a polishing operation.

Referring to Figures 3 and 5, the cover 25 can be made of a plastic material or a fiberglass material, and a central shaft hole 250 is defined in the center to be fixed to the rotating shaft of the device. The other side of the base 21 and the back surface of the abrasive cloth sheet 23 are attached. In particular, in the structure of the abrasive cloth wheel 2 of the present invention, the cover 25 and the base 21 are fixed in the following manner. (1) the other side of the base 21 (ie, the position facing away from the bearing surface 211) is coated with an adhesive layer (eg, glue), and the cover 25 is adhered to the base 21, so that At least the peripheral position of the cover body 25 can abut against the back surface of the abrasive cloth sheets 23; (2) The worker sequentially fixes the cover body 25 and the base 21 to the rotating shaft, and forces the cover body 25 by the aforementioned fixing structure. At least the peripheral position can abut against the back surface of the abrasive cloth sheets 23.

As shown in FIG. 3, in any of the above manners, there is no glue between the cover body 25 and the abrasive cloth sheet 23 of the present invention, so that the penetration of the glue into the abrasive cloth sheet 23 can be avoided. On the front side, the abrasive particles on the front side of the abrasive cloth sheets 23 maintain the original grinding ability.

Referring to Figures 3 and 5, the configuration of the cover body 25 is matched with the configuration of the annular structure in which the abrasive cloth sheets 23 are sequentially arranged, and an annular pressure is applied to the periphery thereof. In the portion 251, the cross-sectional configuration of the annular pressing portion 251 is inclined. Taking the fifth drawing as an example, the annular pressing portion 251 is directed from the inside to the outside toward the abrasive cloth sheets 23 in the radial direction thereof ( That is, the upper portion of FIG. 5 is inclined, so that when the cover 25 abuts against the abrasive cloth sheets 23, the annular pressing portion 251 presses the portions of the back surface of the abrasive cloth sheets 23 adjacent to the other end, so that The abrasive surfaces formed on the front surface of the abrasive cloth sheets 23 can be maintained at the same horizontal plane H (as shown in the horizontal plane of Fig. 6) to maintain the flatness of the polished surface, so that the user does not not only operate the grinder when operating the grinder. The grinding machine needs to be tilted, so that the entire grinding surface can be attached to the surface of the object to improve the grinding efficiency.

In addition to the cover aspect depicted in Figure 5, the operator can also adjust the shape of the cover according to the design requirements of the product. In another embodiment of the present invention, please refer to Figure 7, the cover 35 A second shaft hole 350 is defined in a central portion thereof, and an annular pressing portion 351 is disposed on a periphery thereof, and the annular pressing portion 351 is inclined in a cross-sectional configuration so as to be capable of pressing a plurality of abrasive cloth sheets, thereby The grinding surface formed on the front surface of the abrasive cloth sheet can be maintained at the same horizontal plane. Further, a connecting portion 353 is formed between the annular pressing portion 351 and the second shaft hole 350. The configuration of the connecting portion 353 is Matching the configuration of the pedestal so as to be able to fit snugly to the other side of the pedestal. In particular, the "bearing surface 211" drawn in Fig. 4 of the present invention is almost identical to the groove 213, but If the operator adjusts the configuration of the "bearing surface" so that the right side position of FIG. 4 extends horizontally, when the cover 35 is assembled on the base, the connecting portion 353 can be attached to the base, and is not easy to use. During the operation of the abrasive cloth wheel 2, there is a gap between the cover body and the base. The problem of swaying or affecting the grinding ability due to too large a gap.

In addition, in this embodiment, as shown in FIG. 3, after each of the abrasive cloth sheets 23 is adhered to the base 21, one end edge of each of the abrasive cloth sheets 23 and the edge of the first shaft hole 210 respectively. Maintaining a bit spacing to form a yield space 230 (ie, an area where the abrasive sheet 23 does not cover the base 21), the yield space 230 is in communication with the first shaft hole 210 and the second shaft hole 250. Furthermore, the abrasive cloth wheel 2 further includes an adapter reinforcing disk 27, one side of which can be fixed to the side of one side of the base 21 near the center by the letting space 230 for reinforcing the base. The structural strength of the seat 21, and the center of the adapter disk 27 is provided with an adapter hole 270, and the adapter hole 270 is sequentially connected with the first shaft hole 210 and the second shaft hole 250 to When the base 21 is fixed to the rotating shaft of the device through the first shaft hole 210 and the through hole 270, the adapter reinforcing disk 27 absorbs and buffers the stress and vibration force applied by the rotating shaft of the device, thereby ensuring the The base 21 and the abrasive cloth sheets 23 fixed thereto can have a longer service life. Furthermore, in this embodiment, as shown in FIG. 3, the adapter reinforcing disk 27 can be fixed to the base 21 by adhesive bonding, and the outer edge thereof is spaced from one end edge of the abrasive cloth piece 23. Forming a glue tank, the worker can inject the glue into the glue tank, so that the abrasive cloth sheets 23 can be more closely fixed on the base 21, so as to prevent the sand cloth sheet 23 from coming off during the grinding process. The situation.

The above is only the preferred embodiment of the present invention, but the scope of the claims of the present invention is not limited thereto, and according to those skilled in the art, according to the technical content disclosed in the present invention, Equivalent changes that are easily considered are within the scope of protection of the invention.

Claims (6)

 An abrasive cloth wheel structure capable of ensuring a flat surface of a polishing surface comprises: a base having a disk shape, and a central shaft hole is defined at a central position thereof for fixing to a rotating shaft of a device, and a side surface thereof forms a bearing The surface of the bearing surface is concavely disposed adjacent to the peripheral edge to be filled with a glue; the plurality of abrasive cloth sheets are elongated or fan-shaped, and the front surface thereof is uniformly covered with a layer of high-hardness abrasive particles to Forming a grinding surface, the portion of the back side adjacent to one end is fixed to the bearing surface along the circumferential direction of the base, and the portion of the back side adjacent to the other end extends along the radial direction of the base to beyond The outer edge of the bearing surface, and the adjacent abrasive cloth sheets are arranged in an annular structure along the circumferential direction of the base; and a cover body has a second shaft hole at a central position thereof. So that it can be fixed to the rotating shaft of the device and abut against the other side of the base and the back surface of the abrasive cloth sheet, the configuration of the cover body and the abrasive cloth sheets are sequentially arranged to overlap each other. The configuration of the ring structure is matched, and the periphery thereof is provided with a a shape-pressing portion, the cross-sectional configuration of the annular pressing portion is inclined, and the annular pressing portion presses the back surface of the abrasive cloth sheet adjacent to the other end in a state in which the cover body abuts against the abrasive cloth sheets The portion of the abrasive surface formed by the front side of the abrasive cloth sheets can be maintained at the same level.    The abrasive cloth wheel structure according to claim 1, wherein, in a state in which each of the abrasive cloth sheets is bonded to the base, one end edge of each of the abrasive cloth sheets respectively maintains a spacing between the edge of the first shaft hole and the hole edge. To form a yield space, the yield space is in communication with the first shaft hole and the second shaft hole.    The abrasive cloth wheel structure according to claim 2, further comprising an adapter reinforcing disk, wherein one side of the transfer reinforcing disk can be fixed to a position of one side of the base adjacent to the center through the letting space, And a transfer hole is formed in a central position of the transfer reinforcing disk, and the transfer hole is sequentially connected to the first shaft hole and the second shaft hole, and is passed through a rotating 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 radial direction of the cover body toward the abrasive cloth sheets.    The abrasive cloth wheel structure of claim 4, wherein a connection portion is formed between the annular pressing portion and the second shaft hole, and the configuration of the connecting portion matches the configuration of the base. So that it can fit snugly to the other side of the base.    The abrasive cloth wheel structure of claim 5, wherein the outer edge of the transfer reinforcing disk forms a glue groove with one end edge of the abrasive cloth piece, and the glue groove can be used for injecting adhesive to adhere to the same. Abrasive cloth.