Brush mechanism for polishing

Abstract

The brush mechanism comprises an inner cylinder, an outer cylinder, bristle clusters and fastening bolts, the inner cylinder is provided with a plurality of first openings which are arranged at intervals in the radial direction of the inner cylinder, the outer cylinder is provided with second opening sets which are sequentially arranged at intervals in the circumferential direction of the outer cylinder, and the bristle clusters are inserted into a plurality of second openings contained in the second opening sets in an interference mode. The inner ends of the bristle clusters can extend into the corresponding first openings, and the outer cylinder is coaxially sleeved outside the inner cylinder and can move to a first state or a second state relative to the inner cylinder; according to the brush mechanism, when the brush mechanism is assembled, the brush is inserted into the second opening formed in the outer cylinder in an interference mode, the brush is fixed at a time through friction force between the brush and the second opening, and when the outer cylinder rotates from the first state to the second state relative to the inner cylinder, the first openings and the first opening sets are arranged in a staggered mode. Therefore, the bristle clusters are clamped in the circumferential direction of the outer cylinder and the inner cylinder, secondary fixing is conducted on the bristle clusters, and the bristle clusters are firmer.

Description

Technical Field

[0001] The utility model relates to the technical field of polishing and grinding, in particular to a polishing brush mechanism. Background Art

[0002] When producing glass cover plates, the surface of the workpiece needs to be polished by a high-speed rotating edge-polishing brush. The bristle clusters of existing edge-polishing brushes are mostly interference-fitted with the shell and fixed by the friction between the two. However, the bristle clusters are mostly assembled in clusters, and the bristle clusters located inside are easy to fall off, affecting the edge-polishing effect of the brush. Utility Model Content

[0003] In order to solve the technical problems existing in the background technology, the utility model proposes a polishing brush mechanism.

[0004] The utility model provides a polishing brush mechanism, comprising an inner cylinder, an outer cylinder, a bristle cluster, and a fastening bolt. The inner cylinder is provided with a plurality of first openings spaced apart along its radial direction, and the outer cylinder is provided with a second opening group spaced apart in sequence along its circumference. The bristle clusters are interference-inserted into the plurality of second openings included in the second opening group, and the inner ends of the bristle clusters can extend into the corresponding first openings. The outer cylinder is coaxially sleeved on the outside of the inner cylinder and can move relative to the inner cylinder to a first state or a second state.

[0005] When the outer cylinder moves relative to the inner cylinder to the first state, the plurality of first openings and the plurality of second opening groups are arranged in a one-to-one correspondence;

[0006] When the outer cylinder moves relative to the inner cylinder to the second state, the plurality of first openings and the plurality of groups of first openings are staggered;

[0007] The fastening bolt can be fixedly assembled between the outer cylinder and the inner cylinder when the outer cylinder is in the second state relative to the inner cylinder.

[0008] Preferably, the top end of the outer cylinder is open for the inner cylinder to enter and exit the outer cylinder vertically, the first opening extends vertically and its bottom end is open for the inner end of the bristle tuft to enter and exit the first opening vertically, and the top end of the inner cylinder has a drive shaft connected to the external drive mechanism.

[0009] Preferably, the inner bottom wall of the outer cylinder has an annular protrusion coaxially arranged therewith, and the inner bottom wall of the inner cylinder has an annular groove vertically adapted to be plugged with the annular protrusion, and the annular groove is communicated with the first opening.

[0010] Preferably, a first protrusion is provided on the outer wall of the inner tube and located between two adjacent first openings, and a second protrusion is provided on the inner wall of the outer tube and located between two adjacent groups of second openings, and a channel for the inner end of the bristle cluster to pass through is formed between the corresponding first protrusion and the second protrusion.

[0011] Preferably, a plurality of tapered slots are formed on the side wall of the first protrusion forming the channel in the vertical direction, and a plurality of blocks that can be engaged with the tapered slots are formed on the side wall of the second protrusion forming the channel.

[0012] Preferably, a positioning block is provided on the inner bottom wall of the outer cylinder, and a second positioning block is provided on the bottom wall of the inner cylinder. When the outer cylinder is in the second state relative to the inner cylinder, the second positioning block can abut against the first positioning block in the horizontal direction.

[0013] The brush mechanism proposed by the present invention is that when assembling the mechanism, the brush is interference-fitted into the second opening opened on the outer cylinder, and the brush is fixed once by the friction between the brush and the second opening, and then the outer cylinder is plugged together with the inner cylinder vertically, and the inner end of the brush is located in the first opening opened on the inner cylinder. When the outer cylinder rotates from the first state to the second state relative to the inner cylinder, the multiple first openings and the multiple groups of first openings are staggered, thereby clamping the bristle clusters in the circumferential direction of the outer cylinder and the inner cylinder, thereby fixing the bristle clusters for a second time, making the bristle clusters more firm and not easy to fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a cross-sectional view of a polishing brush mechanism proposed in the present invention;

[0015] Figure 2 This is a top cross-sectional view of the outer cylinder of a polishing brush mechanism proposed by the present invention when it is in a first state;

[0016] Figure 3 This is a top cross-sectional view of the outer cylinder of a polishing brush mechanism proposed by the present invention when it is in the second state;

[0017] Figure 4 for Figure 1 A schematic diagram of the structure at point A in the figure. DETAILED DESCRIPTION

[0018] Reference Figure 1-3 The utility model proposes a polishing brush mechanism, comprising an inner cylinder 1, an outer cylinder 2, a bristle cluster 3, and a fastening bolt 4. The inner cylinder 1 is provided with a plurality of first openings 11 arranged at intervals along its radial direction, and the outer cylinder 2 is provided with a second opening group 21 arranged at intervals along its circumference. The bristle cluster 3 is interference-inserted into the plurality of second openings included in the second opening group 21. The outer cylinder 2 is coaxially sleeved on the outside of the inner cylinder 1 and can move relative to the inner cylinder 1 to a first state or a second state.

[0019] When the outer tube 2 moves to the first state relative to the inner tube 1 , the multiple first openings 11 are arranged in one-to-one correspondence with the multiple groups of second openings 21 . At this time, the inner ends of the bristle clusters 3 passing through the second openings can also enter the first openings 11 .

[0020] When the inner end of the bristle cluster 3 passing through the second opening can also enter the first opening 11, the outer tube 2 moves to the second state relative to the inner tube 1. At this time, the multiple first openings 11 and the multiple groups of first openings 11 are staggered, and the inner tube 1 and the outer tube 2 clamp and fix the bristle cluster 3 in the circumferential direction, so that the assembly of the bristle cluster 3 is more secure, wherein the fastening bolt 4 can be fixedly assembled between the outer tube 2 and the inner tube 1 when the outer tube 2 is in the second state relative to the inner tube 1.

[0021] In the above embodiment, the top end of the outer cylinder 2 is open to allow the inner cylinder 1 to enter and exit the outer cylinder 2 vertically, the first opening 11 extends vertically and its bottom end is open to facilitate the inner end of the bristle cluster 3 to enter and exit the first opening 11, and the top end of the inner cylinder 1 has a drive shaft 12 connected to an external drive mechanism.

[0022] The inner bottom wall of the outer cylinder 2 is provided with an annular protrusion 22 arranged coaxially therewith, and the inner bottom wall of the inner cylinder 1 is provided with an annular groove 13 which can be vertically adapted and plugged with the annular protrusion 22, and the annular groove 13 is communicated with the first opening 11. When the annular protrusion 22 is engaged with the annular groove 13, it can not only play a positioning role in the assembly between the inner cylinder 1 and the outer cylinder 2, but the annular protrusion 22 can also work together with the top wall of the first opening 11 to clamp and fix the bristle cluster 3 passing through the first opening 11 in the vertical direction, thereby making the assembly of the bristle cluster 3 more secure. For details, refer to Figure 4 .

[0023] A first protrusion 14 is provided on the outer wall of the inner tube 1 and located between two adjacent first openings 11, and a second protrusion 23 is provided on the inner wall of the outer tube 2 and located between two adjacent groups of second openings 21. A channel for the inner end of the bristle cluster 3 to pass through is formed between the corresponding first protrusion 14 and the second protrusion 23.

[0024] A plurality of tapered slots are formed on the sidewall of the first protrusion 14 forming the channel in the vertical direction, and a plurality of blocks that can be engaged with the tapered slots are formed on the sidewall of the second protrusion 23 forming the channel.

[0025] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A polishing brush mechanism, characterized in that: The invention comprises an inner cylinder (1), an outer cylinder (2), a bristle cluster (3), and a fastening bolt (4); the inner cylinder (1) is provided with a plurality of first openings (11) arranged at intervals along its radial direction; the outer cylinder (2) is provided with a second opening group (21) arranged at intervals along its circumference; the bristle cluster (3) is interference-fitted into a plurality of second openings included in the second opening group (21), and the inner end of the bristle cluster (3) can be extended into the corresponding first opening (11); the outer cylinder (2) is coaxially sleeved on the outside of the inner cylinder (1) and can move relative to the inner cylinder (1) to a first state or a second state; When the outer cylinder (2) moves relative to the inner cylinder (1) to a first state, the plurality of first openings (11) and the plurality of second opening groups (21) are arranged in a one-to-one correspondence; When the outer cylinder (2) moves relative to the inner cylinder (1) to a second state, the plurality of first openings (11) and the plurality of groups of first openings (11) are arranged in a staggered manner; The fastening bolt (4) can be fixedly assembled between the outer cylinder (2) and the inner cylinder (1) when the outer cylinder (2) is in a second state relative to the inner cylinder (1).

2. The polishing brush mechanism according to claim 1, characterized in that: The top end of the outer cylinder (2) is open so that the inner cylinder (1) can enter and exit the outer cylinder (2) vertically. The first opening (11) extends vertically and its bottom end is open so that the inner end of the bristle tuft (3) can enter and exit the first opening (11) vertically. The top end of the inner cylinder (1) has a driving shaft (12) connected to an external driving mechanism.

3. The polishing brush mechanism according to claim 2, characterized in that: The inner bottom wall of the outer cylinder (2) is provided with an annular protrusion (22) arranged coaxially therewith, and the inner bottom wall of the inner cylinder (1) is provided with an annular groove (13) which can be vertically adapted and plugged with the annular protrusion (22), and the annular groove (13) is communicated with the first opening (11).

4. The polishing brush mechanism according to claim 1, characterized in that: A first protrusion (14) is provided on the outer wall of the inner tube (1) and located between two adjacent first openings (11); a second protrusion (23) is provided on the inner wall of the outer tube (2) and located between two adjacent second opening groups (21); a passage for the inner end of the bristle cluster (3) to pass through is formed between the corresponding first protrusion (14) and the second protrusion (23).

5. The polishing brush mechanism according to claim 4, characterized in that: A plurality of tapered slots are provided on the side wall of the first protrusion (14) forming the channel in a vertical direction, and a plurality of clamping blocks capable of being clamped with the tapered slots are provided on the side wall of the second protrusion (23) forming the channel.

6. The polishing brush mechanism according to claim 1, characterized in that: A positioning block is provided on the inner bottom wall of the outer cylinder (2), and a second positioning block is provided on the bottom wall of the inner cylinder (1). When the outer cylinder (2) is in a second state relative to the inner cylinder (1), the second positioning block can abut against the first positioning block in the horizontal direction.

Images