Bezel sand puller

Abstract

The utility model discloses a watchcase pulls sand machine, including frame, and be located on the clamping mechanism of frame, polishing mechanism, drive module, drive module drive clamping mechanism and polishing mechanism relative movement, and polishing mechanism has unwinding subassembly, winding subassembly, and pressure seat and presser foot, and is equipped with installation portion and pressure device on pressure seat, and presser foot is located in the lower extreme of installation portion, and the sand belt of unwinding subassembly output reaches winding subassembly after passing presser foot, and pressure device can be located on the sand belt of installation portion left and right sides and press tightly on installation portion to limit sand belt relative presser foot sliding, the utility model discloses when polishing watchcase, utilizes the sand belt of pressure device and press tightly, thereby prevents sand belt relative presser foot sliding, improves watchcase polishing stability.

Description

Technical Field

[0001] This utility model relates to the technical field of watch bezel processing equipment, specifically to a watch bezel sanding machine. Background Technology

[0002] The bezel is a component of the watch case, usually made of metal. It serves to decorate and protect the internal parts of the watch. During production, the outer surface of the bezel needs to be polished to create a sandblasted texture, giving the bezel a hazy appearance.

[0003] A watch bezel sanding machine is an automated device used for polishing watch bezels. It mainly consists of a clamping mechanism, a polishing mechanism, and a drive module. The clamping mechanism holds the watch bezel in place, while the polishing mechanism has a pressure blade and a sanding belt. The pressure blade presses down on the sanding belt, causing it to contact the watch bezel. When the drive module drives the clamping mechanism to move left and right, the watch bezel rubs against the sanding belt, achieving the polishing purpose. However, traditional sanding machines suffer from slippage of the sanding belt relative to the pressure blade during bezel polishing, resulting in unstable polishing. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by providing a watch bezel sanding machine that uses a clamping device to press the sanding belt during watch bezel sanding, thereby preventing the sanding belt from slipping relative to the pressure blade and improving the stability of watch bezel sanding.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A watch bezel sanding machine includes a frame, and a clamping mechanism, a grinding mechanism, and a drive module disposed on the frame, wherein the drive module drives the clamping mechanism and the grinding mechanism to move relative to each other.

[0007] The grinding mechanism has an unwinding assembly, a winding assembly, a pressing seat, and a pressing knife. The pressing seat is provided with a mounting part, and the pressing knife is located at the lower end of the mounting part. The sanding belt output by the unwinding assembly passes through the pressing knife and reaches the winding assembly.

[0008] The pressure seat is also provided with a clamping device, which can clamp the sanding belts located on the left and right sides of the mounting part onto the mounting part to restrict the sanding belts from sliding relative to the pressure knife.

[0009] By setting a clamping device on the pressure seat, when polishing the bezel, the clamping device presses the sanding belts located on the left and right sides of the mounting part onto the mounting part, so that the mounting part, the pressure knife, and the sanding belt remain relatively stationary, thereby preventing the sanding belt from sliding relative to the pressure knife and improving the stability of bezel polishing.

[0010] In one embodiment, the clamping device has a first clamping device and a second clamping device, and the mounting portion is disposed between the first clamping device and the second clamping device.

[0011] In one embodiment, both the first and second pressing devices have a pressing block and a pressing drive unit, wherein the pressing drive unit can drive the pressing block to move closer to or further away from the mounting portion.

[0012] In one embodiment, the left and right ends of the pressing seat are provided with connecting parts, and the connecting parts, the mounting parts and the pressing seat form a receiving groove, and the pressing drive unit is disposed in the receiving groove.

[0013] In one embodiment, the pressing seat is further provided with a plurality of guide rollers, the guide rollers being located above the mounting portion, and the sand belt being wound around the guide rollers.

[0014] In one embodiment, the grinding mechanism further includes a support, on which the unwinding assembly and the winding assembly are mounted. The pressure seat is slidably connected to the support, and a driving cylinder is provided above the pressure seat. The driving cylinder is connected to an external air source through a proportional valve. The piston rod of the driving cylinder extends downward and is connected to a movable block. The driving cylinder can drive the movable block to move up and down, and the movable block abuts against the pressure seat.

[0015] In one embodiment, an elongated hole and a limiting pin are provided between the pressing seat and the bracket. The elongated hole extends vertically, and the limiting pin moves vertically through the elongated hole. The elongated hole and the limiting pin cooperate to prevent the pressing seat from detaching from the bracket.

[0016] In one embodiment, a tension spring is provided between the bracket and the pressure seat, with the upper end of the tension spring connected to the bracket and the lower end of the tension spring connected to the pressure seat.

[0017] In one embodiment, the pressure knife is formed of tungsten steel.

[0018] In one embodiment, the drive module has a first drive module and a second drive module, wherein the first drive module drives the clamping mechanism to move, and the second drive module drives the grinding mechanism to move.

[0019] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, by setting a pressing device on the pressing seat, when polishing the bezel, the pressing device is used to press the sanding belts located on the left and right sides of the mounting part onto the mounting part, so that the mounting part, the pressing knife, and the sanding belt are kept in a relatively static state, thereby preventing the sanding belt from sliding relative to the pressing knife and improving the stability of bezel polishing.

[0020] To more clearly illustrate the structural features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments: Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the assembly structure of an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the assembly of the grinding mechanism and the upper and lower drive modules according to an embodiment of this utility model;

[0023] Figure 3 yes Figure 2 A schematic diagram of the decomposition process;

[0024] Figure 4 This is a schematic diagram of the bracket and drive cylinder assembly according to an embodiment of the present utility model;

[0025] Figure 5 This is an assembly diagram of the pressure seat, pressure knife, and clamping device according to an embodiment of this utility model;

[0026] Figure 6 yes Figure 5 Another perspective illustration;

[0027] Figure 7 yes Figure 5 A schematic diagram of the working status;

[0028] Figure 8 This is a schematic diagram of the working state of an embodiment of this utility model.

[0029] Explanation of reference numerals in the attached diagram:

[0030] 10-Frame, 20-Clamping mechanism, 30-Grinding mechanism, 31-Unwinding assembly, 32-Rewinding assembly, 33-Pressure seat, 331-Mounting part, 332-Connecting part, 333-Accommodating groove, 334-Limiting pin, 34-Pressure knife, 35-Pressure device, 351-First pressure device, 3511-Pressure block, 3512-Pressure drive unit, 352-Second pressure device, 36-Guide roller, 37-Bracket, 371-Elongated hole, 38-Drive cylinder, 381-Moving block, 39-Tension spring, 40-Drive module, 41-First drive module, 42-Second drive module, 421-Front and rear drive module, 422-Up and down drive module, 50-Sanding belt, 60-Bezel. Detailed Implementation

[0031] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the position or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] like Figure 1-8 As shown, this utility model discloses a watch bezel sanding machine, including a frame 10, and a clamping mechanism 20, a grinding mechanism 30, and a drive module 40 disposed on the frame 10. The drive module 40 drives the clamping mechanism 20 and the grinding mechanism 30 to move relative to each other. The clamping mechanism 20 is prior art, so it will not be described in detail.

[0034] The grinding mechanism 30 has an unwinding assembly 31, a winding assembly 32, a pressing seat 33, and a pressing knife 34. The pressing seat 33 is provided with a mounting part 331, and the pressing knife 34 is located at the lower end of the mounting part 331. The sanding belt 50 output by the unwinding assembly 31 passes through the pressing knife 34 and reaches the winding assembly 32.

[0035] The pressing seat 33 is also provided with a pressing device 35, which can press the sanding belts 50 located on the left and right sides of the mounting part 331 onto the mounting part 331 to restrict the sanding belts 50 from sliding relative to the pressing knife 34.

[0036] The clamping device 35 has a first clamping device 351 and a second clamping device 352, and the mounting part 331 is disposed between the first clamping device 351 and the second clamping device 352.

[0037] The first pressing device 351 and the second pressing device 352 both have a pressing block 3511 and a pressing drive unit 3512. The pressing drive unit 3512 can drive the pressing block 3511 to move closer to or away from the mounting part 331. The pressing drive unit 3512 can be driven by a cylinder, a linear motor or a lead screw + motor.

[0038] Both ends of the pressing seat 33 are provided with connecting parts 332. The connecting parts 332, the mounting parts 331 and the pressing seat 33 form a receiving groove 333. The pressing drive unit 3512 is disposed in the receiving groove 333. The pressing drive unit 3512 is detachably connected to the connecting parts 332 by screws. By setting the connecting parts 332, the connecting parts 332, the mounting parts 331 and the pressing seat 33 form a receiving groove 333. The pressing drive unit 3512 is arranged in the receiving groove 333, and the structure is reasonable and compact, occupying little space.

[0039] The pressure seat 33 is also provided with a plurality of guide rollers 36, the guide rollers 36 being located above the mounting part 331, and the sand belt 50 being wound around the guide rollers 36.

[0040] The grinding mechanism 30 also has a bracket 37. The unwinding assembly 31 and the winding assembly 32 are both mounted on the bracket 37. The pressing seat 33 is slidably connected to the bracket 37. A driving cylinder 38 is provided above the pressing seat 33. The driving cylinder 38 is connected to the bracket 37. The driving cylinder 38 is connected to an external air source through a proportional valve (not shown). The piston rod (not shown) of the driving cylinder 38 is connected to a movable block 381. The driving cylinder 38 can drive the movable block 381 to move up and down. The movable block 381 abuts against the pressing seat 33. Specifically, the piston rod extends downward to connect to the movable block 381. The proportional valve is a commercially available mature product that can adjust the driving cylinder 38. The air pressure inside the drive cylinder 38 varies. When the air pressure inside the drive cylinder 38 is low, the piston rod can compress the air in the piston chamber upwards. When polishing the bezel 60, the bezel 60 has an upward reaction force on the pressure knife 34, causing the pressure knife 34 to move upwards and sequentially push the pressure seat 33, the movable block 381, and the piston rod upwards. This achieves a buffering effect of the pressure seat 33 in the vertical direction, preventing the pressure knife 34 from applying excessive pressure to the bezel 60. When the air pressure inside the drive cylinder 38 is high, the piston rod remains extended. When the pressure seat 33 and the movable block 381 come into contact, the pressure knife 34 cannot push the pressure seat 33 upwards, thus preventing the sanding belt 50 from pulling the pressure seat 33 upwards during winding, allowing the winding assembly 32 to smoothly wind up the sanding belt 50.

[0041] An elongated hole 371 and a limiting pin 334 are provided between the pressing seat 33 and the bracket 37. The elongated hole 371 extends vertically, and the limiting pin 334 moves vertically through the elongated hole 371. The elongated hole 371 and the limiting pin 334 cooperate to prevent the pressing seat 33 from detaching from the bracket 37. Specifically, the elongated hole 371 is provided on the bracket 37, and the limiting pin 334 is provided on the pressing seat 33. By providing the elongated hole 371 and the limiting pin 334, the pressing seat 33 can be prevented from falling off.

[0042] A tension spring 39 is provided between the bracket 37 and the pressure seat 33. The upper end of the tension spring 39 is connected to the bracket 37, and the lower end of the tension spring 39 is connected to the pressure seat 33. By providing the tension spring 39, the tension of the tension spring 39 is used to offset the sum of the weight of the pressure seat 33 and the components located on the pressure seat 33, making it easier for the pressure seat 33 to slide up and down.

[0043] The pressure knife 34 is made of tungsten steel; the pressure knife 34 made of tungsten steel has good wear resistance and long service life.

[0044] The drive module 40 has a first drive module 41 and a second drive module 42. The first drive module 41 drives the clamping mechanism 20 to move, and the second drive module 42 drives the grinding mechanism 30 to move. Specifically, the first drive module 41 drives the clamping mechanism 20 to move left and right, and the second drive module 42 drives the grinding mechanism 30 to move back and forth and up and down. The first drive module 41 adopts a lead screw + motor drive method.

[0045] The second drive module 42 includes a front-rear drive module 421 and an up-down drive module 422. The front-rear drive module 421 drives the up-down drive module 422 to move back and forth, and the up-down drive module 422 drives the grinding mechanism 30 to move up and down.

[0046] The working principle of this utility model is as follows: The operator places the bezel 60 to be polished on the clamping mechanism 20 and clamps it. The first clamping device 351 and the second clamping device 352 are activated. The first clamping device 351 clamps the sanding belt 50 on the left side of the mounting part 331 onto the mounting part 331, and the second clamping device 352 clamps the sanding belt 50 on the right side of the mounting part 331 onto the mounting part 331. The front and rear drive module 421 drives the up and down drive module 422 to move backward, and the up and down drive module 422 drives the polishing mechanism 30 to move downward. The pressure knife 34 presses the sanding belt 50 against the upper surface of the bezel 60. The first drive module 41 drives the clamping mechanism 20 to move back and forth, so that the sanding belt 50 polishes the bezel 60.

[0047] In summary, by setting a clamping device 35 on the pressure seat 33, the present invention uses the clamping device 35 to press the sanding belts 50 located on the left and right sides of the mounting part 331 onto the mounting part 331 when polishing the bezel 60, so that the mounting part 331, the pressure knife 34, and the sanding belts 50 are kept in a relatively static state, thereby preventing the sanding belts 50 from sliding relative to the pressure knife 34 and improving the polishing stability of the bezel 60.

[0048] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Therefore, any modifications, equivalent substitutions, improvements, etc., made to the above embodiments based on the actual technical aspects of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A bezel sanding machine, characterized in that... It includes a frame, and a clamping mechanism, a grinding mechanism, and a drive module mounted on the frame. The drive module drives the clamping mechanism and the grinding mechanism to move relative to each other. The grinding mechanism has an unwinding assembly, a winding assembly, a pressing seat, and a pressing knife. The pressing seat is provided with a mounting part, and the pressing knife is located at the lower end of the mounting part. The sanding belt output by the unwinding assembly passes through the pressing knife and reaches the winding assembly. The pressure seat is also provided with a clamping device, which can clamp the sanding belts located on the left and right sides of the mounting part onto the mounting part to restrict the sanding belts from sliding relative to the pressure knife.

2. The bezel sanding machine according to claim 1, characterized in that, The clamping device has a first clamping device and a second clamping device, and the mounting part is disposed between the first clamping device and the second clamping device.

3. The bezel sanding machine according to claim 2, characterized in that, Both the first and second pressing devices have a pressing block and a pressing drive unit, wherein the pressing drive unit can drive the pressing block to move closer to or further away from the mounting part.

4. The bezel sanding machine according to claim 3, characterized in that, Both ends of the pressing seat are provided with connecting parts, and the connecting parts, the mounting parts and the pressing seat form a receiving groove, and the pressing drive unit is located in the receiving groove.

5. The bezel sanding machine according to claim 1, characterized in that, The pressure seat is also provided with several guide rollers, which are located above the mounting part, and the sand belt is wound around the guide rollers.

6. The bezel sanding machine according to claim 1, characterized in that, The grinding mechanism also has a support frame, on which the unwinding assembly and the winding assembly are mounted. The pressure seat is slidably connected to the support frame. A driving cylinder is provided above the pressure seat. The driving cylinder is connected to an external air source through a proportional valve. The piston rod of the driving cylinder is connected to a movable block. The driving cylinder can drive the movable block to move up and down. The movable block abuts against the pressure seat.

7. The bezel sanding machine according to claim 6, characterized in that, An elongated hole and a limiting pin are provided between the pressing seat and the bracket. The elongated hole extends vertically, and the limiting pin moves vertically through the elongated hole. The elongated hole and the limiting pin cooperate to prevent the pressing seat from detaching from the bracket.

8. The bezel sanding machine according to claim 6, characterized in that, A tension spring is provided between the bracket and the pressure seat. The upper end of the tension spring is connected to the bracket, and the lower end of the tension spring is connected to the pressure seat.

9. The bezel sanding machine according to claim 1, characterized in that, The pressure knife is made of tungsten steel.

10. The bezel sanding machine according to any one of claims 1-9, characterized in that, The drive module has a first drive module and a second drive module. The first drive module drives the clamping mechanism to move, and the second drive module drives the grinding mechanism to move.

Images