Rubber roller structure of polishing machine

Abstract

The utility model discloses a rubber roller structure of a polishing machine, which comprises a base, a rack is arranged on the base, a guide rail is arranged in the rack, and the guide rail is arranged on the base. A workbench is arranged on the guide rail, and a swing table is arranged on the workbench; a polishing wheel is arranged on the machine frame and arranged above the swing table. A front-end rubber roller bearing seat is arranged at the end, close to the polishing wheel, of the swing table, a rear-end rubber roller bearing seat is arranged at the end, away from the polishing wheel, of the swing table, and a supporting seat is arranged in the middle of the swing table and arranged between the rear-end rubber roller bearing seat and the front-end rubber roller bearing seat. A plurality of first rotary rubber rollers are arranged on the front-end rubber roller bearing seat, second rotary rubber rollers are arranged at the ends, away from the front-end rubber roller bearing seat, of the first rotary rubber rollers, and transmission parts are arranged at the ends, adjacent to the second rotary rubber rollers, of the first rotary rubber rollers. The transmission part is arranged between the front rubber roller and the rear rubber roller, the length of the whole rotating shaft is extended, the polishing quality is improved, and the efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of polishing equipment, in particular to a polishing machine for polishing a billiard cue (or table tennis cue). Background Art

[0002] The polishing machine is a finishing process for the surface of the workpiece, which reduces the surface roughness of the workpiece and makes the workpiece have a bright and smooth surface.

[0003] A pool cue (or table tennis cue) requires a smooth and flat surface to ensure the feel and aesthetics. However, a pool cue has a certain taper, and the cue is thin in the front and thick in the back. The length of a pool cue is generally about 1.3m to 1.5m, and some customized cues are up to 1.8m long. The diameter of the cue head (thin end) is about 9 to 12mm, and the diameter of the grip (back handle) is about 2.7 to 3.3cm. Existing pool cue polishing is mostly done manually, with sandpaper rubbing and polishing on the pool cue repeatedly by hand. The work intensity is high, the efficiency of grinding and polishing is low, and the consistency of smoothness and glossiness is poor, which makes it difficult to meet high-quality requirements. Utility Model Content

[0004] In order to solve the problems existing in the prior art, the purpose of the utility model is to provide a rubber roller structure of a polishing machine. The surface of the rotating rubber roller has a certain friction force. The rubber roller drives the workpiece to rotate, which meets the needs of multiple polishing of a slender tapered billiard cue from front to back in a reciprocating cycle, thereby improving efficiency and ensuring polishing quality.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A rubber roller structure of a polishing machine comprises a base, a frame is arranged on the base, a guide rail is arranged in the frame, and the guide rail is arranged on the base; a workbench is arranged on the guide rail, and a swing table is arranged on the workbench; a polishing wheel is arranged on the frame, and the polishing wheel is arranged above the swing table;

[0007] A front end rubber roller bearing seat is provided on one end of the swing table close to the polishing wheel, a rear end rubber roller bearing seat is provided on one end of the swing table away from the polishing wheel, a support seat is provided in the middle of the swing table, and the support seat is arranged between the rear end rubber roller bearing seat and the front end rubber roller bearing seat;

[0008] A plurality of first rotating rubber rollers are arranged on the front end rubber roller bearing seat, a second rotating rubber roller is arranged on the end of the first rotating rubber roller away from the front end rubber roller bearing seat, a transmission part is arranged on the adjacent ends of the first rotating rubber roller and the second rotating rubber roller, the first rotating rubber roller and the second rotating rubber roller are connected through the transmission part, and the transmission part connecting the first rotating rubber roller and the second rotating rubber roller is arranged on the support seat.

[0009] Furthermore, in some embodiments, a rubber roller rotating motor is provided on the side of the front end rubber roller bearing seat away from the first rotating rubber roller, and the rubber roller rotating motor is drivingly connected to the first rotating rubber roller.

[0010] Furthermore, in some embodiments, a rack is provided on one side of the workbench, and an advance and retreat motor matching the rack is provided on the base, and an output shaft of the advance and retreat motor is meshedly connected with the rack through a gear;

[0011] The bottom surface of the workbench is provided with an advance and retreat guide wheel that matches the guide rail, and the advance and retreat guide wheel is arranged on the guide rail;

[0012] The top of the workbench is provided with left and right swinging slide rails perpendicular to the guide rails, and the bottom of the swinging table is provided with slide seats matching the left and right swinging slide rails, and the slide seats are slidably arranged on the left and right swinging slide rails;

[0013] The workbench is provided with a left-right swing motor, an eccentric wheel is provided on the output shaft of the left-right swing motor, the eccentric wheel is connected with the swing table through a connecting rod, and a swing avoidance opening for accommodating the left-right swing motor is opened on the swing table.

[0014] Furthermore, in some embodiments, an advance and retreat reducer is provided at the output end of the advance and retreat motor, and a gear corresponding to the rack is provided at the output end of the advance and retreat reducer, and the gear at the output end of the advance and retreat reducer is connected to the rack teeth.

[0015] Furthermore, in some embodiments, a left-right swing reducer is provided at the output end of the left-right swing motor, and the left-right swing reducer is arranged on a workbench. An eccentric wheel is provided at the output end of the left-right swing reducer, and the eccentric wheel is connected to the swing table through a connecting rod. The swing table is provided with a swing avoidance opening for avoiding the left-right swing motor and the left-right swing reducer.

[0016] Further, in some embodiments, the end of the second rotating rubber roller away from the first rotating rubber roller is arranged on the rear end rubber roller bearing seat; a plurality of first rotating rubber rollers are arranged in parallel and in sequence on the front end rubber roller bearing seat;

[0017] The swing platform is provided with a rubber roller rotating motor, which is arranged on the side of the front rubber roller bearing seat and is drivingly connected with the first rotating rubber roller on the front rubber roller bearing seat.

[0018] Further, in some embodiments, a first rotating rubber roller is provided with a covered first shaft core, and an end of the first shaft core close to the second rotating rubber roller is provided with a first transmission part protruding outward; a second rotating rubber roller is provided with a covered second shaft core, and an end of the second shaft core close to the first shaft core is provided with a second transmission part matching and corresponding to the first transmission part, and the second transmission part is protruding outward and arranged at an end of the second shaft core close to the first shaft core; the first transmission part and the second transmission part are arranged closely, and the connection between the first transmission part and the second transmission part is arranged on the top of the support seat;

[0019] A bearing is sleeved on the connection between the first transmission part and the second transmission part, a concave arc groove corresponding to the bearing is opened on the top of the support seat, and the bearing sleeved on the connection between the first transmission part and the second transmission part is arranged in the concave arc groove.

[0020] Further, in some embodiments, the first transmission part is a semicircular shaft, and the second transmission part is a semicircular shaft matching therewith. The plane of the semicircular shaft of the first transmission part is tightly arranged with the plane of the semicircular shaft of the second transmission part, and a bearing is sleeved on the fitting part of the semicircular shaft of the first transmission part and the semicircular shaft of the second transmission part.

[0021] Further, in some embodiments, a concave slot is provided on the circular shaft of the first transmission part, and the second transmission part is a corresponding block matching therewith, the block of the second transmission part is embedded in the concave slot of the first transmission part, and a bearing is sleeved on the clamping part between the slot of the first transmission part and the block of the second transmission part.

[0022] Furthermore, in some embodiments, an extended rotating rubber roller is provided at one end of the second rotating rubber roller away from the first rotating rubber roller, and the second rotating rubber roller and the extended rotating rubber roller adopt the same connection structure as the first transmission part and the second transmission part, and the connection between the second rotating rubber roller and the extended rotating rubber roller is set at the top of another support seat.

[0023] The utility model can polish or sand the workpiece by a polishing wheel (or a sanding wheel), and can polish automatically and continuously. During polishing, the workpiece (billiard cue, table tennis cue) is placed on a rotating rubber roller, but the billiard cue is relatively long, and the rotating rubber roller is made by coating rubber on the metal shaft core and vulcanizing it. When the metal shaft core is too long, that is, the rubber roller is too long, the surface smoothness of the vulcanized rubber layer of the rotating rubber roller is difficult to control, and the consistency of the flatness of the surface layer of the rubber roller is poor, thereby limiting the length of the rubber roller; at the same time, when the rubber roller rotates during work, if the length of the rubber roller is too long, when polishing the slender tapered billiard cue, the friction torque on the rubber roller is different, and the rubber layer coated on the metal shaft core of the rubber roller is easily deformed locally, which also limits the length of the rubber roller.

[0024] In order to meet the polishing needs of slender workpieces, the utility model sets a transmission part between the front and rear rubber rollers to make the front and rear rubber rollers rotate synchronously; multiple rubber rollers can be connected front and back through the transmission part, and multiple rubber rollers are connected front and back to form a whole rotating shaft, which can extend the length of the entire rotating shaft, and at the same time keep the surface of the entire rotating shaft (multiple rubber rollers) flat and smooth, improve the polishing quality, and improve the accuracy and smoothness of the workpiece (billiard cue, table tennis cue) surface polishing. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the utility model;

[0026] Figure 2This is a schematic diagram of the structure of the extended rotating rubber roller part of the embodiment of the utility model;

[0027] Figure 3 It is a structural schematic diagram of the working table part of the embodiment of the utility model;

[0028] Figure 4 for Figure 3 The structural diagram of part A in the figure;

[0029] Figure 5 It is an exploded schematic diagram of the first embodiment of the transmission part of the utility model;

[0030] Figure 6 It is an exploded schematic diagram of the second embodiment of the transmission part of the utility model;

[0031] Figure 7 It is a side view schematic diagram of an embodiment of the utility model.

[0032] Description of the markings in the figure:

[0033] Base 11, frame 12, guide rail 13, workbench 14, swing table 15, polishing wheel 16, advance and retreat motor 21, advance and retreat reducer 22, advance and retreat guide wheel 23, rack 24, left and right swing slide rail 25, slide seat 26, rear end rubber roller bearing seat 27, front end rubber roller bearing seat 28, bearing 29, first shaft core 31, first rotating rubber roller 32, first transmission part 33, second transmission part 34, second rotating rubber roller 35, second shaft core 36, support seat 37, concave arc groove 38, extended rotating rubber roller 39, left and right swing motor 41, left and right swing reducer 42, eccentric wheel 43, connecting rod 44, swing avoidance opening 45, rubber roller rotating motor 51, workpiece 89. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in combination with the specific embodiments of the utility model and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] In the description of the present utility model, it should be noted that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "inner", "outer", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present utility model, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0036] Referring to the attached drawings, the specific structure of the embodiment of the utility model is shown in the attached drawings. The utility model comprises a base 11, a frame 12 is arranged on the base 11, a guide rail 13 is arranged in the frame 12, that is, the guide rail 13 is arranged between the frames (in the middle) of the frame 12, the guide rail 13 is arranged on the base 11, a workbench 14 is arranged on the guide rail 13, and a swing table 15 is arranged on the workbench 14; a polishing wheel 16 is arranged on the frame 12, and the polishing wheel 16 is arranged above the swing table 15.

[0037] Furthermore, in one of the embodiments, a front end rubber roller bearing seat 28 is provided on the end of the swing table 15 close to the polishing wheel 16, a rear end rubber roller bearing seat 27 is provided on the end of the swing table 15 away from the polishing wheel 16, and a support seat 37 is provided in the middle of the swing table 15, and the support seat 37 is arranged between the rear end rubber roller bearing seat 27 and the front end rubber roller bearing seat 28.

[0038] A plurality of first rotating rubber rollers 32 are provided on the front end rubber roller bearing seat 28, and the plurality of first rotating rubber rollers 32 are arranged in sequence and parallel to each other on the front end rubber roller bearing seat 28; a second rotating rubber roller 35 is provided at one end of the first rotating rubber roller 32 away from the front end rubber roller bearing seat 28, and one end of the second rotating rubber roller 35 away from the first rotating rubber roller 32 is arranged on the rear end rubber roller bearing seat 27; the first rotating rubber roller 32 and the second rotating rubber roller 35 are connected by a transmission part, and the transmission part of the first rotating rubber roller 32 and the second rotating rubber roller 35 is arranged on the support seat 37.

[0039] A rubber roller rotating motor 51 is provided on a side of the front rubber roller bearing seat 28 away from the first rotating rubber roller 32 , and the rubber roller rotating motor 51 is drivingly connected to the first rotating rubber roller 32 .

[0040] In another embodiment, the swing platform 15 is provided with a rubber roller rotating motor 51, which is arranged on the side of the front rubber roller bearing seat 28, and the rubber roller rotating motor 51 is transmission-connected to the first rotating rubber roller 32 on the front rubber roller bearing seat 28.

[0041] Further, in one of the embodiments, a first rotating rubber roller 32 is provided with a covered first shaft core 31, and an end of the first shaft core 31 close to the second rotating rubber roller 35 is provided with a first transmission part 33 protruding and extending outward; a second rotating rubber roller 35 is provided with a covered second shaft core 36, and an end of the second shaft core 36 close to the first shaft core 31 is provided with a second transmission part 34 matching and corresponding to the first transmission part 33, and the second transmission part 34 protrudes outward and is arranged at an end of the second shaft core 36 close to the first shaft core 31; the first transmission part 33 and the second transmission part 34 are arranged in close contact, and the connection between the first transmission part 33 and the second transmission part 34 is arranged on the top of the support seat 37.

[0042] A bearing 29 is sleeved on the connection between the first transmission part 33 and the second transmission part 34 , and a concave arc groove 38 matching the bearing 29 is opened on the top of the support seat 37 . The bearing 29 sleeved on the connection between the first transmission part 33 and the second transmission part 34 is set in the concave arc groove 38 .

[0043] Furthermore, in one of the embodiments, an extended rotating rubber roller 39 is provided at one end of the second rotating rubber roller 35 away from the first rotating rubber roller 32, and the second rotating rubber roller 35 and the extended rotating rubber roller 39 adopt the same connection structure as the first transmission part 33 and the second transmission part 34, and another support seat 37 is provided below the connection between the second rotating rubber roller 35 and the extended rotating rubber roller 39, and the connection between the second rotating rubber roller 35 and the extended rotating rubber roller 39 is set at the top of the other support seat 37.

[0044] Further, in one embodiment, a rack 24 is provided on one side of the workbench 14, and an advance / retract motor 21 is provided on the base 11 to match the rack 24, and the output shaft of the advance / retract motor 21 is meshed and connected with the rack 24 through a gear. Further, an advance / retract reducer 22 is provided at the output end of the advance / retract motor 21, and a gear matching the rack 24 is provided at the output end of the advance / retract reducer 22, and the gear at the output end of the advance / retract reducer 22 is meshed and connected with the rack 24, that is, the advance / retract motor 21 is meshed and connected with the rack 24 of the workbench 14 through the gear on the advance / retract reducer 22.

[0045] The bottom surface of the workbench 14 is provided with an advance and retreat guide wheel 23 that matches and corresponds to the guide rail 13 , and the advance and retreat guide wheel 23 is arranged on the guide rail 13 .

[0046] The workbench 14 is provided with left and right swing rails 25 perpendicular to the guide rails 13 on the top, and the bottom of the swing table 15 is provided with slide seats 26 matching the left and right swing rails 25 , and the slide seats 26 are slidably arranged on the left and right swing rails 25 .

[0047] Furthermore, in one of the embodiments, a left-right swing motor 41 is provided on the workbench 14, an eccentric wheel 43 is provided on the output shaft of the left-right swing motor 41, the eccentric wheel 43 is connected to the swing table 15 through a connecting rod 44, and a swing avoidance opening 45 for accommodating (avoiding) the left-right swing motor 41 is opened on the swing table 15.

[0048] Furthermore, in one of the embodiments, a left-right swing reducer 42 is provided at the output end of the left-right swing motor 41, and the left-right swing reducer 42 is arranged on the workbench 14. An eccentric wheel 43 is provided at the output end of the left-right swing reducer 42. The eccentric wheel 43 is connected to the swing table 15 through a connecting rod 44. The swing table 15 is provided with a swing avoidance opening 45 for accommodating (avoiding) the left-right swing motor 41 and the left-right swing reducer 42.

[0049] Transmission part embodiment 1: see attached Figure 5 As shown, the first transmission part 33 is a semicircular shaft (transverse section), and the second transmission part 34 is a semicircular shaft matching it. The semicircular shaft plane of the first transmission part 33 and the semicircular shaft plane of the second transmission part 34 are tightly arranged, and a bearing 29 is sleeved on the fitting part of the semicircular shaft of the first transmission part 33 and the semicircular shaft of the second transmission part 34.

[0050] Transmission part embodiment 2: see attached Figure 6 As shown, the first transmission part 33 is a circular shaft with a slot (transverse section), that is, a concave slot is provided on the circular shaft of the first transmission part 33, and the second transmission part 34 is a corresponding block matching therewith, and the block of the second transmission part 34 is embedded in the concave slot of the first transmission part 33, and a bearing 29 is sleeved on the clamping part between the slot of the first transmission part 33 and the block of the second transmission part 34.

[0051] Working principle of the machine:

[0052] The workpiece 89 is placed on the first rotating rubber roller 32 and the second rotating rubber roller 35, and the rubber roller rotating motor 51 drives the rubber rollers to rotate. The first rotating rubber roller 32 and the second rotating rubber roller 35 drive the workpiece 89 (billiard cue, table tennis cue) to rotate 360 ​​degrees. The worktable advance and retreat motor 21 drives the workpiece 89 to move forward and backward in the polishing area of ​​the polishing wheel 16. The left and right swing motor 41 swings the swing table 15 back and forth left and right. The polishing wheel 16 (or sanding wheel) head is pressed down to contact the surface of the workpiece 89 for polishing or sanding, thereby realizing the polishing or sanding of the long strip workpiece 89 product.

[0053] The above embodiments only express several preferred implementations of the utility model, and the descriptions thereof are relatively specific and detailed. It should be understood that the utility model is not limited to the forms disclosed herein, and should not be regarded as the exclusion of other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge in the relevant field, and cannot be understood as limiting the scope of the utility model. It should be pointed out that for ordinary technicians in this field, several deformations and improvements can be made without departing from the concept of the utility model. The changes and modifications made by the personnel in this field do not depart from the spirit and scope of the utility model, and all of these belong to the protection scope of the claims attached to the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A rubber roller structure of a polishing machine, comprising: A base (11), wherein a frame (12) is provided on the base (11), a guide rail (13) is provided in the frame (12), and the guide rail (13) is arranged on the base (11); characterized in that a workbench (14) is provided on the guide rail (13), and a swing table (15) is provided on the workbench (14); a polishing wheel (16) is provided on the frame (12), and the polishing wheel (16) is arranged above the swing table (15); A front end rubber roller bearing seat (28) is provided on the swing table (15) at one end close to the polishing wheel (16), a rear end rubber roller bearing seat (27) is provided on the swing table (15) at one end away from the polishing wheel (16), a support seat (37) is provided in the middle of the swing table (15), and the support seat (37) is arranged between the rear end rubber roller bearing seat (27) and the front end rubber roller bearing seat (28); A plurality of first rotating rubber rollers (32) are arranged on the front end rubber roller bearing seat (28); a second rotating rubber roller (35) is arranged at one end of the first rotating rubber roller (32) away from the front end rubber roller bearing seat (28); a transmission part is arranged at one end adjacent to the first rotating rubber roller (32) and the second rotating rubber roller (35); the first rotating rubber roller (32) and the second rotating rubber roller (35) are connected via the transmission part; and the transmission part connecting the first rotating rubber roller (32) and the second rotating rubber roller (35) is arranged on the support seat (37).

2. The rubber roller structure of a polishing machine according to claim 1, characterized in that: A rubber roller rotating motor (51) is provided on the side of the front rubber roller bearing seat (28) away from the first rotating rubber roller (32), and the rubber roller rotating motor (51) is transmission-connected to the first rotating rubber roller (32).

3. The rubber roller structure of a polishing machine according to claim 1, characterized in that: A rack (24) is provided on one side of the workbench (14), and an advance / retract motor (21) matching and corresponding to the rack (24) is provided on the base (11), and an output shaft of the advance / retract motor (21) is meshedly connected with the rack (24) via a gear; The bottom surface of the workbench (14) is provided with an advance and retreat guide wheel (23) that matches and corresponds to the guide rail (13), and the advance and retreat guide wheel (23) is arranged on the guide rail (13); The upper surface of the workbench (14) is provided with a left and right swinging slide rail (25) which is perpendicular to the guide rail (13); the bottom surface of the swinging table (15) is provided with a slide seat (26) which matches and corresponds to the left and right swinging slide rail (25); the slide seat (26) is slidably arranged on the left and right swinging slide rail (25); A left-right swing motor (41) is provided on the workbench (14); an eccentric wheel (43) is provided on the output shaft of the left-right swing motor (41); the eccentric wheel (43) is connected to the swing table (15) through a connecting rod (44); and a swing avoidance opening (45) for accommodating the left-right swing motor (41) is provided on the swing table (15).

4. The rubber roller structure of a polishing machine according to claim 3, characterized in that: The output end of the advance / reverse motor (21) is provided with an advance / reverse reducer (22), and the output end of the advance / reverse reducer (22) is provided with a gear corresponding to the rack (24), and the gear at the output end of the advance / reverse reducer (22) is connected to the rack (24) by teeth.

5. The rubber roller structure of a polishing machine according to claim 3, characterized in that: The output end of the left-right swing motor (41) is provided with a left-right swing reducer (42), which is arranged on a workbench (14), and the output end of the left-right swing reducer (42) is provided with an eccentric wheel (43), which is connected to a swing platform (15) through a connecting rod (44), and a swing avoidance opening (45) for avoiding the left-right swing motor (41) and the left-right swing reducer (42) is provided on the swing platform (15).

6. The rubber roller structure of a polishing machine according to claim 1, characterized in that: The end of the second rotating rubber roller (35) away from the first rotating rubber roller (32) is arranged on the rear end rubber roller bearing seat (27); a plurality of first rotating rubber rollers (32) are arranged in parallel and in sequence on the front end rubber roller bearing seat (28); The swing platform (15) is provided with a rubber roller rotating motor (51), which is arranged on the side of the front rubber roller bearing seat (28), and the rubber roller rotating motor (51) is drivingly connected to the first rotating rubber roller (32) on the front rubber roller bearing seat (28).

7. The rubber roller structure of a polishing machine according to claim 1, characterized in that: The first rotating rubber roller (32) is provided with a covered first shaft core (31), and an end of the first shaft core (31) close to the second rotating rubber roller (35) is provided with a first transmission part (33) protruding outwards; the second rotating rubber roller (35) is provided with a covered second shaft core (36), and an end of the second shaft core (36) close to the first shaft core (31) is provided with a second transmission part (34) matching and corresponding to the first transmission part (33), and the second transmission part (34) is arranged protruding outwards at an end of the second shaft core (36) close to the first shaft core (31); the first transmission part (33) and the second transmission part (34) are arranged in close contact, and the connection between the first transmission part (33) and the second transmission part (34) is arranged on the top of the support seat (37); A bearing (29) is sleeved on the connection between the first transmission part (33) and the second transmission part (34); a concave arc groove (38) matching and corresponding to the bearing (29) is provided on the top of the support seat (37); and the bearing (29) sleeved on the connection between the first transmission part (33) and the second transmission part (34) is arranged in the concave arc groove (38).

8. A rubber roller structure for a polishing machine according to claim 7, characterized in that: The first transmission part (33) is a semicircular shaft, and the second transmission part (34) is a semicircular shaft that matches the first transmission part (33). The semicircular shaft plane of the first transmission part (33) and the semicircular shaft plane of the second transmission part (34) are arranged in close contact with each other, and a bearing (29) is sleeved on the contacting part between the semicircular shaft of the first transmission part (33) and the semicircular shaft of the second transmission part (34).

9. The rubber roller structure of a polishing machine according to claim 7, characterized in that: A concave slot is provided on the circular shaft of the first transmission part (33), and the second transmission part (34) is a corresponding block matched therewith. The block of the second transmission part (34) is embedded in the concave slot of the first transmission part (33), and a bearing (29) is sleeved on the clamping part between the slot of the first transmission part (33) and the block of the second transmission part (34).

10. The rubber roller structure of a polishing machine according to claim 7, characterized in that: An extended rotating rubber roller (39) is provided at one end of the second rotating rubber roller (35) away from the first rotating rubber roller (32); the second rotating rubber roller (35) and the extended rotating rubber roller (39) have the same connection structure as the first transmission part (33) and the second transmission part (34); and the connection between the second rotating rubber roller (35) and the extended rotating rubber roller (39) is provided at the top of another supporting seat (37).

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