CN221390613U

CN221390613U - Polishing disc structure

Info

Publication number: CN221390613U
Application number: CN202323254796.7U
Authority: CN
Inventors: 花长江; 方小洪; 沈游方; 张卫明
Original assignee: Zhejiang Burley Tools Co ltd
Current assignee: Zhejiang Burley Tools Co ltd
Priority date: 2023-11-30
Filing date: 2023-11-30
Publication date: 2024-07-23
Anticipated expiration: 2033-11-30

Abstract

The utility model aims to solve the problems of low cooling efficiency and easy abrasion of the polishing disc of the existing polishing machine; the polishing disc structure comprises a polishing piece, wherein a plurality of first air holes for ventilation of polishing parts are formed in the polishing piece; the polishing piece further comprises a support for connecting an external structure, and the polishing piece further comprises a connecting surface for polishing and a buffer layer for connecting the support; the buffer layer is positioned between the connecting surface and the bracket; the buffer layer is provided with at least one air outlet channel and one air inlet channel; the air outlet channel is provided with at least one air outlet hole; at least one air inlet hole is formed in the air inlet channel; on one hand, the cooling of the polishing disc is quickened, the service life of the polishing disc is prolonged, on the other hand, the dust thrown out by back suction is avoided, and the polishing quality is ensured.

Description

Polishing disc structure

Technical Field

The utility model relates to the technical field of grinding machines, in particular to a grinding disc structure.

Background

In manufacturing operations such as furniture, stairs, and boats, the workpiece is typically polished to achieve a better fit or display, but a large amount of dust is generated during polishing. In order to collect dust better, air holes are provided in the grinding disc of the grinding machine, for example in the german patent application DE102016100072, a proposal for a grinding plate of a hand-held grinding machine is disclosed, which comprises "working with dust and workpiece abrasive caused by dust air flow in the opening in the main flow direction is provided with inflowing dust-laden air, which is connected via a suction channel to at least one dust-laden air outflow opening on the machine side of the grinding wheel facing away from the working surface, the suction device of the grinding machine being able to suck in dust air flowing in the dust air through the inflow opening of the at least one dust air outflow opening. The grinding wheel has at least one dust air channel with a dust air inlet between the wearing layer of the abrasive and the machine side. Dust in the area around the grinding layer far away from the grinding disc is directly communicated with at least one outflow opening far away from the grinding layer in a flowing way, and the problems of grinding, heat dissipation and dust collection of the grinding disc are mainly solved.

In the above solution, however, the dust air inlet is located between the wearing layer of the side abrasive and the machine side. When the polishing disc rotates at a high speed, the air temperature between the abrasion layer of the abrasive material and the machine side is high, and when the dust collector sucks the air with high temperature between the abrasion layer of the abrasive material and the machine side through the air flow port on the polishing disc, the whole air-passing process has poor cooling effect on the polishing disc.

Meanwhile, part of dust is thrown away from the polishing disc by centrifugation and then is sucked back to the periphery of the polishing disc, and then returns to the position between the polishing disc and the abrasion layer through a dust air inlet on the polishing disc, so that the dust stays between the polishing disc and the abrasive for a long time, the dust is not beneficial to leaving a polishing area, the abrasion of the polishing disc is accelerated, the service life of the polishing disc is prolonged, and the polishing quality of the polishing disc is influenced.

On the other hand, the existing polishing disc is used for polishing one surface, and the heat dissipation in the middle area is slower than that in the edge area, so that the abrasion degree is more serious, and a bowl-shaped structure with middle concave and raised edge is easy to appear in long-time use; at this moment, polishing is carried out again, the edge of the polishing disc is contacted with the article to be polished, the stress point is mainly concentrated at the edge of the polishing disc, the polishing surface is not smooth, annular spiral lines are easy to appear on the polished surface, the polishing quality is affected, and the overall service life of the polishing disc is reduced. Therefore, there is a need for a polishing plate and polisher that has high polishing quality and a long service life.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a polishing disc structure.

In order to solve the problems, the utility model adopts the following scheme:

A polishing disc structure comprises a polishing piece, wherein a plurality of first air holes for ventilation of a polishing part are formed in the polishing piece; the polishing piece further comprises a support for connecting an external structure, and the polishing piece further comprises a connecting surface for polishing and a buffer layer for connecting the support; the buffer layer is positioned between the connecting surface and the bracket; the buffer layer is provided with at least one air outlet channel and one air inlet channel; the air outlet channel is provided with at least one air outlet hole; at least one air inlet hole is arranged on the air inlet channel.

Further, a plurality of first air holes which penetrate through the connecting surface and are connected with the air outlet channel or the air inlet channel in the buffer layer are also formed in the connecting surface; at least one third air hole corresponding to the first air hole is formed in the edge of the support, and at least one third air hole is communicated with the first air hole formed in the middle of the buffer layer; an air inlet is arranged around the first air hole.

Further, the buffer layer is provided with at least three air outlet channels, including at least one Y-shaped air outlet channel, one I-shaped air outlet channel and one three-way air outlet channel.

Further, a connecting structure for connecting an external grinding machine is arranged on one side, away from the connecting surface, of the bracket; the connecting structure is arranged near the central part of the bracket; the bracket is also provided with a plurality of second air holes and a plurality of third air holes which penetrate through the bracket; the second air hole is arranged around the connecting structure; the third air hole is arranged close to the edge of the bracket; the second air hole is communicated with the first air hole which is partially set, and the third air hole is communicated with the rest of the first air holes.

Further, the buffer layer comprises a high-temperature-resistant soft elastic material layer and a bonding material layer; the adhesive material layer is positioned on one side close to the bracket and used for connecting the bracket.

Further, the connecting structure comprises a plurality of raised ribs; the ribs extend from the center of the bracket to the edges thereof; the connection structure further includes a connection hole for connecting an external grinder, the connection hole being located at a central position of the bracket.

Further, the ribs are arranged on one side of the support away from the polishing piece and/or one side of the support close to the polishing piece.

A polishing disc structure comprises a polishing piece, wherein the edge of one surface of the polishing piece, which is used for polishing, is bent away from the polished surface; the edge of the polishing piece is connected with the middle part of the polishing piece through a transition surface.

Further, the transition surface is configured to provide a preload to the edge of the abrading article toward a side remote from the abrading.

Further, the surface of the side of the middle part of the polishing piece, which is used for polishing, is a plane.

The beneficial effects of the utility model are as follows:

The second air holes for air outlet and the third air holes for air inlet are respectively arranged on the bracket, so that the temperature of part of air entering the polishing disc is lower, the rapid cooling of the polishing disc is realized, and meanwhile, the second air holes and the third air holes are respectively arranged at positions close to the center and the edge, so that the dust thrown out by back suction is avoided, the service life of the polishing disc is prolonged, and the polishing quality can be improved;

The edge of one surface used for polishing is bent away from the connecting surface by the polishing piece, so that the middle area protrudes out of the edge, bowl-shaped concave is avoided in the middle area because abrasion consumption is fast, the whole service life of the polishing disc is prolonged, and polishing quality is guaranteed.

Drawings

FIG. 1 is a schematic diagram of the whole structure of embodiment 1;

FIG. 2 is a schematic diagram of the whole structure of the second embodiment 1;

FIG. 3 is a schematic view of a polishing member according to example 1;

FIG. 4 is a schematic diagram of a bracket in accordance with example 1;

FIG. 5 is a second schematic view of the stent of example 1;

The attached drawings are used for identifying and describing: the polishing piece 1, the connecting surface 11, the buffer layer 12, the first air hole 13, the fence 14, the ventilation channel 15, the bracket 2, the second air hole 21, the third air hole 22, the ribs 23 and the clamping groove 24.

Detailed Description

Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present utility model with reference to specific examples. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict.

It should be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present utility model by way of illustration, and only the components related to the present utility model are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.

Example 1:

As shown in fig. 1 to 5, a polishing disc structure comprises a polishing piece 1, wherein a plurality of first air holes 13 for ventilation of polishing parts are formed in the polishing piece 1; the polishing piece comprises a bracket 2, and also comprises a connecting surface 11 for polishing and a buffer layer 12 for connecting the bracket 2; the buffer layer 12 is positioned between the connecting surface 11 and the bracket 2; the connecting surface 11 is also provided with a plurality of first air holes 13 penetrating through the connecting surface 11; the first air holes 13 comprise round holes and oblong holes, the whole connecting surface 11 is round disc-shaped in this example, round first air holes 13 are arranged at the edge positions close to the connecting surface 11 and the center positions close to the connecting surface 11, and oblong first air holes 13 are arranged in the area between the edge and the center first air holes 13; a connecting structure for connecting an external grinding machine is arranged on one side of the bracket 2 away from the grinding piece 1; the connecting structure is arranged near the central part of the bracket 2; the bracket 2 is also provided with a plurality of second air holes 21 and a plurality of third air holes 22 penetrating through the bracket 2, and the aperture of the second air holes 21 is larger than that of the third air holes 22 in the example; the second air hole 21 is arranged around the connecting structure, and the second air hole 21 is used for discharging the air sucked by the connecting surface 11; the third air hole 22 is arranged near the edge of the bracket 2, and the third air hole 22 is used for sucking air; the first air holes 13 are respectively communicated with the second air holes 21 or the third air holes 22, wherein the second air holes 21 are communicated with a set part of the first air holes 13, and the third air holes 22 are communicated with the rest of the first air holes 13.

The connecting surface 11 is provided with a plurality of fences 14 protruding into the buffer layer at one side close to the bracket 2, and ventilation channels 15 between the fences 14 comprise an air inlet channel and an air outlet channel; one end of the ventilation channel 15 is connected with the first air hole 13, and the other end corresponds to the second air hole 21 or the third air hole 22 on the bracket 2. The air outlet channel comprises three types, I-shaped, Y-shaped and three-way, wherein one end of the air outlet channel is connected with the third air hole 22, and the other end of the air outlet channel is connected with the first air hole 13; the I-shaped air outlet channel is connected with a first air hole 13 at the end part; the Y-shaped air outlet channel is connected with the two first air holes at the end parts; the three-way air outlet channel is connected with three third air holes at the end part.

The buffer layer 12 comprises a layer of high temperature resistant soft elastic material and a layer of adhesive material; the bonding material layer is positioned on one side close to the bracket 2 and is used for connecting the bracket 2; in this example, the elastic material layer is polyurethane foam, and the adhesive material layer is a nylon fastener tape layer and a fiber layer; if the fiber layer and the nylon fastener tape layer in the adhesive material layer are respectively fixed on the support 2 and the elastic material layer, the adhesive between the support 2 and the elastic material layer is realized by the cooperation of the fiber layer and the nylon fastener tape layer.

The connection structure comprises a plurality of raised ribs 23; the ribs 23 extend from the centre of the bracket 2 towards the edges thereof; the connection structure further includes a connection hole for connecting an external grinder, the connection hole being located at a central position of the bracket 2. On the side of the connecting hole away from the grinding member 1, a clamping groove 24 for being matched with the grinding machine in a clamping way is arranged, so that the bracket 2 can rotate along with the rotation of the grinding machine. In this example, ribs 23 are provided on both sides of the bracket 2. The area between adjacent ribs 23 is provided with a second air hole 21, in this case one second air hole 21 is provided between every two adjacent ribs 23.

The edge of the side far away from the bracket 2 of the connecting surface 11 is slightly bent towards the bracket 2 side, so that the middle area of the connecting surface slightly protrudes out of the edge of the connecting surface, and the protruding part is connected with the edge through a transition surface to form a structure similar to a truncated cone; the transition surface is a cambered surface, an inclined surface or a surface provided with an arc groove and the like and can be used for providing a pretightening force for the edge of the connecting surface towards the connecting surface; in this case the first air holes 13 are located in the raised areas of the connection face 11. It should be noted that in some other embodiments, the side of the connection surface 11 away from the middle may be a cambered surface with a slightly convex middle area. It should be noted that the feature of providing the intermediate area of the side of the polishing member 1 for polishing slightly protruding from the edge thereof may also be implemented separately, and by providing the outer edge of the polishing member 1 with a pre-supporting force, the occurrence of a "bowl-shaped recess" in the intermediate area of the side of polishing due to faster wear may be avoided, the overall lifetime of the polishing member 1 is prolonged, the polishing quality of the surface of the polished member 1 is improved, and the polishing surface is made smooth.

The edge shape of the connecting surface 11 is adapted to the outline of the article to be polished, and the edge shape of the connecting surface 11 can be round, elliptic, triangular or other regular polygons; in this case circular.

In the implementation process, the second air holes 21 for air outlet and the third air holes 22 for air inlet are respectively arranged on the bracket 2, so that the temperature of part of air entering the grinding disc is lower, the quick cooling of the grinding disc is realized, meanwhile, the second air holes 21 and the third air holes 22 are respectively arranged at positions close to the center and the edge, the back suction of the thrown dust is avoided, and the service life of the grinding disc is prolonged; the edge of one surface used for polishing is bent away from the connecting surface by the polishing piece, so that the middle area protrudes out of the edge, bowl-shaped concave is avoided in the middle area because abrasion consumption is fast, the whole service life of the polishing disc is prolonged, and polishing quality is guaranteed.

The above description is only one specific example of the present utility model and does not constitute any limitation on the present utility model. It will be apparent to those skilled in the art that various modifications and changes in form and details may be made without departing from the principles and construction of the utility model, but these modifications and changes based on the inventive concept are still within the scope of the appended claims.

Claims

1. The polishing disc structure comprises a polishing piece (1), wherein a plurality of first air holes (13) for ventilation of polishing parts are formed in the polishing piece (1); the polishing piece (1) further comprises a bracket (2) for connecting an external structure, and is characterized in that the polishing piece (1) further comprises a connecting surface (11) for polishing and a buffer layer (12) for connecting the bracket (2); the buffer layer (12) is positioned between the connecting surface (11) and the bracket (2); at least one air outlet channel and one air inlet channel are arranged on the buffer layer (12); the air outlet channel is provided with at least one air outlet hole; at least one air inlet hole is arranged on the air inlet channel.

2. The polishing disc structure according to claim 1, wherein the connecting surface (11) is further provided with a plurality of first air holes (13) penetrating through the connecting surface (11) and connected with an air outlet channel or an air inlet channel in the buffer layer (12); at least one third air hole (22) corresponding to the first air hole (13) is arranged at the edge of the bracket (2), and at least one third air hole (22) is communicated with the first air hole (13) arranged in the middle of the buffer layer (12); an air inlet is arranged around the first air hole.

3. A polishing disc structure according to claim 1 or 2, wherein the buffer layer (12) is provided with at least three gas outlet channels, including at least one Y-shaped gas outlet channel, one I-shaped gas outlet channel and one three-way shaped gas outlet channel.

4. A sanding disc structure according to claim 3, characterized in that the side of the holder (2) remote from the connection face (11) is provided with connection means for connecting an external sanding machine; the connecting structure is arranged near the central part of the bracket (2); the bracket (2) is also provided with a plurality of second air holes (21) and a plurality of third air holes (22) which penetrate through the bracket (2); the second air hole (21) is arranged around the connecting structure; the third air hole (22) is arranged close to the edge of the bracket (2); the second air hole (21) is communicated with the first air hole (13) which is partially set, and the third air hole (22) is communicated with the rest of the first air holes (13).

5. A sanding disc structure according to claim 1, characterized in that the buffer layer (12) comprises a layer of flexible elastic material resistant to high temperatures and a layer of adhesive material; the adhesive material layer is positioned on one side close to the bracket (2) and is used for connecting the bracket (2).

6. A sanding disc structure according to claim 4, characterized in that the connection structure comprises several raised ribs (23); the ribs (23) extend from the center of the bracket (2) to the edge thereof; the connection structure further comprises a connection hole for connecting an external grinder, and the connection hole is positioned at the center of the bracket (2).

7. A sanding disc structure according to claim 6, characterized in that the ribs (23) are arranged on the side of the support (2) remote from the sanding element (1) and/or on the side close to the sanding element (1).

8. The polishing disc structure is characterized by comprising a polishing piece (1), wherein the edge of one surface of the polishing piece (1) for polishing is bent away from the polished surface; the edge of the polishing piece is connected with the middle part of the polishing piece through a transition surface.

9. A sanding disc structure as defined in claim 8, wherein said transition surface is configured to provide a pre-load force to the edge of the sanding element toward a side remote from the sanding.

10. A polishing disc structure according to claim 8, wherein a surface of a side of the intermediate portion of the polishing member for polishing is a plane.