Horizontal belt sander

Abstract

The utility model discloses a horizontal type abrasive belt grinding machine, which comprises a machine frame, a clamping rotating mechanism and a horizontal type abrasive belt grinding mechanism, the clamping rotating mechanism and the horizontal type abrasive belt grinding mechanism are arranged on the machine frame, the clamping rotating mechanism is provided with a mounting seat, a clamping head, a clamping driving assembly and a rotating driving assembly, the clamping head, the clamping driving assembly and the rotating driving assembly are arranged on the mounting seat, and the clamping driving assembly can drive the clamping head to open and close. The rotary driving assembly can drive the chuck to rotate so that the chuck can clamp or loosen a product, the rotary driving assembly can drive the chuck to rotate so that the chuck can drive the product to rotate, the horizontal abrasive belt grinding mechanism is provided with a horizontal driving module, a translation seat, an unwinding assembly, a winding assembly and a pressing roller, and an abrasive belt output by the unwinding assembly reaches the winding assembly after passing through the pressing roller. The horizontal driving module drives the translation seat to horizontally move relative to the chuck, so that the compression roller enables the side wall surface of the abrasive belt to abut against the outer surface of the peripheral side of the product, the outer surface of the peripheral side of the product is ground in an automatic mode to form abrasive grains, the production efficiency is high, the production cost is reduced, and the grinding effect is better.

Description

Technical Field

[0001] This utility model relates to the field of grinding device technology, specifically to a horizontal belt sander. Background Technology

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

[0003] Traditional watch bezel polishing is mainly done manually, with workers using a grinding wheel to rub and polish the outer surface of the bezel. However, manual methods are inefficient, resulting in high production costs and poor polishing results. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing a horizontal belt sander that can automatically sand the outer periphery of a product to create a sanding texture, resulting in high production efficiency, reduced production costs, and better sanding effects.

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

[0006] A horizontal belt sander includes a frame, a clamping and rotating mechanism, and a horizontal belt sanding mechanism mounted on the frame. The clamping and rotating mechanism has a mounting base, and a chuck, a clamping drive assembly, and a rotating drive assembly mounted on the mounting base. The clamping drive assembly can drive the chuck to open and close, so that the chuck clamps or releases the product. The rotating drive assembly can drive the chuck to rotate, so that the chuck drives the product to rotate. The horizontal belt sanding mechanism has a horizontal drive module, a translation base, and an unwinding assembly, a winding assembly, and a pressure roller mounted on the translation base. The pressure roller is rotatably connected to the translation base. The sanding belt output by the unwinding assembly passes through the pressure roller and reaches the winding assembly. The horizontal drive module drives the translation base to move horizontally relative to the chuck, so that the pressure roller abuts the side wall of the sanding belt against the outer peripheral surface of the product.

[0007] By setting a clamping and rotating mechanism and a vertical belt sanding mechanism on the frame, the clamping and rotating mechanism has a mounting base, and a chuck, a clamping drive assembly, and a rotating drive assembly on the mounting base. The vertical belt sanding mechanism has a lifting drive module, a lifting seat, and an unwinding assembly, a winding assembly, and a pressure roller on the lifting seat. During production, the product is first clamped by the chuck, and then the horizontal drive module drives the translation seat to move closer to the chuck so that the pressure roller presses the side surface of the sanding belt against the outer surface of the product. The sanding belt output by the unwinding assembly passes through the pressure roller and reaches the winding assembly. At the same time, the rotating drive assembly drives the chuck to rotate, so that the sanding belt sands the outer surface of the product during the movement. This automated method sands the outer surface of the product to form a sanding texture, resulting in high production efficiency, reduced production costs, and better sanding effect.

[0008] As a preferred embodiment, the translation seat is provided with a first sensor, a second sensor, a swing arm, and a reset component. The second sensor is located between the first sensor and the clamping and rotating mechanism. The swing arm is rotatably connected to the translation seat and can swing back and forth between the first and second sensors. The swing arm is provided with a guide wheel. The sanding belt output by the unwinding assembly passes through the guide wheel and then to the pressure roller. The reset component ensures that the swing arm always tends to rotate towards the second sensor. When the first sensor detects the swing arm, the unwinding assembly releases the sanding belt. When the second sensor detects the swing arm, the unwinding assembly stops releasing the sanding belt.

[0009] As a preferred embodiment, the translation seat is provided with a first guide roller group and a second guide roller group, and the sand belt output by the unwinding assembly passes through the first guide roller group, the pressure roller, and the second guide roller group in sequence before reaching the winding assembly.

[0010] As a preferred embodiment, the first guide roller group is provided with a plurality of first guide rollers, and the second guide roller group is provided with a plurality of second guide rollers, and the middle of the first guide roller and the second guide roller are provided with radially outwardly protruding arc-shaped protrusions.

[0011] As a preferred embodiment, the upper end of the chuck is provided with a plurality of elastic blocks spaced apart. The product can be fitted over the elastic blocks. When the clamping drive assembly drives the elastic blocks to disperse radially outward, the elastic blocks abut against the product, so that the chuck clamps the product.

[0012] As a preferred embodiment, the rotary drive assembly has a rotating shaft and a first drive member for driving the rotating shaft to rotate. The rotating shaft is rotatably connected to the mounting base. The chuck is located at the upper end of the rotating shaft and can rotate with the rotating shaft. The clamping drive assembly has a telescopic rod and a second drive member for driving the telescopic rod to extend and retract. Both the rotating shaft and the chuck are hollow structures. The telescopic rod can extend and retract and is movably inserted into the rotating shaft and the chuck. The upper end of the telescopic rod is provided with a protrusion. The outer side wall of the protrusion abuts against the inner side wall of the elastic block, so that the elastic block is radially dispersed outward.

[0013] As a preferred embodiment, the inner wall of the elastic block is provided with an inclined surface, which extends from top to bottom in a direction close to the central axis of the clamp, and the protrusion abuts against the inclined surface.

[0014] As a preferred embodiment, the upper end of the telescopic rod is threaded with a bolt, and the protrusion is a bolt head located on the upper end of the bolt.

[0015] As a preferred embodiment, the second driving member has a pushing driving unit and a thrust spring. The driving end of the pushing driving unit abuts against the lower end of the telescopic rod. The thrust spring is sleeved on the telescopic rod. The lower end of the thrust spring abuts against a stop block on the telescopic rod. The upper end of the thrust spring abuts against a rotating shaft. The thrust spring causes the telescopic rod to always have a downward tendency.

[0016] As a preferred embodiment, the mounting base is provided with a connecting hole, and the frame is provided with an arc-shaped hole corresponding to the connecting hole. The screw passes through the arc-shaped hole and the connecting hole in sequence to allow the mounting base to rotate and be adjusted to be mounted on the frame, and to adjust the tilt angle of the chuck.

[0017] Compared with the prior art, this utility model has significant advantages and beneficial effects. Specifically, by setting a clamping and rotating mechanism and a vertical sanding belt grinding mechanism on the frame, the clamping and rotating mechanism has a mounting base, and a chuck, a clamping drive assembly, and a rotating drive assembly on the mounting base. The vertical sanding belt grinding mechanism has a lifting drive module, a lifting seat, and an unwinding assembly, a winding assembly, and a pressure roller on the lifting seat. During production, the product is first clamped by the chuck, and then the horizontal drive module drives the translation seat to move closer to the chuck so that the pressure roller presses the side surface of the sanding belt against the outer surface of the product. The sanding belt output by the unwinding assembly passes through the pressure roller and reaches the winding assembly. At the same time, the rotating drive assembly drives the chuck to rotate, so that the sanding belt grinds the outer surface of the product during the movement. Thus, the outer surface of the product is ground to form a sanding texture in an automated manner, resulting in high production efficiency, reduced production costs, and better grinding effect.

[0018] 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

[0019] Figure 1 This is a schematic diagram of the assembly structure of an embodiment of the present utility model;

[0020] Figure 2 This is a side view schematic diagram of an embodiment of the present utility model;

[0021] Figure 3 This is an assembly diagram of the translation seat, pressure roller, first guide roller, second guide roller, first sensor, second sensor and swing arm according to an embodiment of the present utility model;

[0022] Figure 4 yes Figure 3 A schematic diagram of the first working state;

[0023] Figure 5 yes Figure 3 Schematic diagram of the second working state;

[0024] Figure 6 This is a schematic diagram of the clamping and rotating mechanism according to an embodiment of the present invention;

[0025] Figure 7 This is a cross-sectional schematic diagram of the clamping and rotating mechanism according to an embodiment of the present invention.

[0026] Explanation of reference numerals in the attached diagram:

[0027] 10-Frame; 11-Connecting hole; 20-Clamping and rotating mechanism; 21-Mounting base; 211-Arc-shaped hole; 22-Chuck; 221-Elastic block; 222-Arc-shaped positioning groove; 223-Inclined surface; 23-Clamping drive assembly; 231-Telescopic rod; 232-Second drive component; 233-Protrusion; 234-Bolt; 235-Stop; 236-Push drive unit; 237-Thrust spring; 24-Rotation drive assembly; 241-Rotating shaft; 242-First drive component; 243-Rotary motor; 244-Synchronous belt; 245-Synchronous belt pulley; 30-Horizontal Belt sanding mechanism; 31-Horizontal drive module; 32-Transfer seat; 321-First sensor; 322-Second sensor; 323-Swing arm; 3231-Guide wheel; 324-Reset component; 33-Unwinding assembly; 331-Unwinding reel; 332-Unwinding motor; 34-Rewinding assembly; 341-Rewinding reel; 342-Rewinding motor; 35-Pressure roller; 36-Lifting drive module; 37-First guide roller group; 371-First guide roller; 3711-Induction wheel; 38-Second guide roller group; 381-Second guide roller; 39-Modible seat; 40-Product; 50-Sanding belt. Detailed Implementation

[0028] 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.

[0029] 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.

[0030] like Figure 1-7 As shown, this utility model discloses a horizontal belt sander, including a frame 10, a clamping and rotating mechanism 20 and a horizontal belt sander 30 disposed on the frame 10.

[0031] The clamping and rotating mechanism 20 has a mounting base 21, and a chuck 22, a clamping drive assembly 23, and a rotating drive assembly 24 disposed on the mounting base 21. The clamping drive assembly 23 can drive the chuck 22 to open and close, so that the chuck 22 clamps or releases the product 40. The rotating drive assembly 24 can drive the chuck 22 to rotate, so that the chuck 22 drives the product 40 to rotate.

[0032] The horizontal belt sanding mechanism 30 has a horizontal drive module 31, a translation seat 32, and an unwinding assembly 33, a winding assembly 34, and a pressure roller 35 disposed on the translation seat 32. The pressure roller 35 is rotatably connected to the translation seat 32, and the rotation center line of the pressure roller 35 extends in the vertical direction. The sanding belt 50 output by the unwinding assembly 33 passes through the pressure roller 35 and reaches the winding assembly 34. The horizontal drive module 31 drives the translation seat 32 to move horizontally relative to the chuck 22 so that the pressure roller 35 abuts the side wall of the sanding belt 50 against the peripheral outer surface of the product 40.

[0033] The horizontal belt sanding mechanism 30 also has a lifting drive module 36. The drive end of the lifting drive module 36 is connected to the horizontal drive module 31. The lifting drive module 36 can drive the horizontal belt sanding mechanism 30 to move up and down relative to the chuck 22. By setting the lifting drive module 36, the horizontal belt sanding mechanism 30 can be driven to move up and down, thereby adjusting the height position of the pressure roller 35 to adapt to products 40 of different heights.

[0034] The lifting drive module 36 and the horizontal drive module 31 can be driven by a lead screw and motor, a cylinder, a gear and rack, or a linear motor.

[0035] The unwinding assembly 33 has an unwinding reel 331 and an unwinding motor 332 that drives the unwinding reel 331 to rotate, and the winding assembly 34 has a winding reel 341 and a winding motor 342 that drives the winding reel 341 to rotate.

[0036] The translation seat 32 is equipped with a first sensor 321, a second sensor 322, a swing arm 323, and a reset member 324. The second sensor 322 is located between the first sensor 321 and the clamping rotation mechanism 20. The swing arm 323 is rotatably connected to the translation seat 32 and can swing back and forth between the first sensor 321 and the second sensor 322. The swing arm 323 is equipped with a guide wheel 3231. The sanding belt 50 output by the unwinding assembly 33 passes through the guide wheel 3231 and then goes to the pressure roller 35. The reset member 324 ensures that the swing arm 323 always has a tendency to rotate towards the second sensor 322. When the first sensor 321 detects the swing arm 323, the unwinding assembly 33 releases the sanding belt 50. When the second sensor 322 detects... When the swing arm 323 is reached, the unwinding assembly 33 stops releasing the sanding belt 50. By setting a first sensor 321, a second sensor 322, a swing arm 323, and a reset member 324, and by setting a guide wheel 3231 on the swing arm 323, the swing arm 323 can swing back and forth between the first sensor 321 and the second sensor 322. When the winding assembly 34 winds up the sanding belt 50, the swing arm 323 gradually rotates away from the chuck 22. When the first sensor 321 detects the swing arm 323, the unwinding assembly 33 releases the sanding belt 50. Because the reset member 324 causes the swing arm 323 to rotate towards the second sensor 322, when the second sensor 322 detects the swing arm 323, the unwinding assembly 33 stops releasing the sanding belt 50, thereby realizing the intermittent release of the sanding belt 50 by the unwinding assembly 33, saving energy.

[0037] The reset component 324 is a tension spring. The upper end of the tension spring is connected to the swing arm 323, and the lower end of the tension spring is connected to the translation seat 32. It can be understood that the tension spring can also be replaced by a compression spring or other structures with a reset function.

[0038] The translation seat 32 is provided with a first guide roller group 37 and a second guide roller group 38. The pressure roller 35 is located between the first guide roller group 37 and the second guide roller group 38. The sanding belt 50 output by the unwinding assembly 33 passes through the first guide roller group 37, the pressure roller 35, and the second guide roller group 38 in sequence before reaching the winding assembly 34. By setting the first guide roller group 37 and the second guide roller group 38, the sanding belt 50 output by the unwinding assembly 33 is smoothly guided to the pressure roller 35 and then smoothly guided from the pressure roller 35 to the winding assembly 34, thereby making the operation of the horizontal sanding belt grinding mechanism 30 more stable.

[0039] The first guide roller group 37 is provided with a plurality of first guide rollers 371, and the second guide roller group 38 is provided with a plurality of second guide rollers 381. The first guide rollers 371 and the second guide rollers 381 are provided with radially outward arc-shaped protrusions in the middle. By providing arc-shaped protrusions in the middle of the first guide rollers 371 and the second guide rollers 381, the first guide rollers 371 and the second guide rollers 381 have a structure that is larger in the middle and smaller at both ends, which can prevent the sanding belt 50 from running off-center on the first guide rollers 371 and the second guide rollers 381, thereby making the movement of the sanding belt 50 more stable.

[0040] The first guide roller 371 or the second guide roller 381 is provided with a sensing wheel 3711, and the translation seat 32 is provided with a sensor (not shown). The sensor and the sensing wheel 3711 cooperate to detect the winding amount of the sanding belt 50. The sensing wheel 3711 and the sensor are existing technologies, and their detection principle will not be described in detail.

[0041] The pressure roller 35 is horizontally mounted on the translation seat 32 via a movable seat 39, and a buffer spring (not shown) is provided between the movable seat 39 and the translation seat 32.

[0042] The upper end of the chuck 22 is provided with a plurality of spaced elastic blocks 221. The product 40 can be fitted over the elastic blocks 221. When the clamping drive assembly 23 drives the elastic blocks 221 to disperse radially outward, the elastic blocks 221 abut against the product 40, so that the chuck 22 clamps the product 40. By providing a plurality of spaced elastic blocks 221 on the upper end of the chuck 22, in use, the product 40 is fitted over the elastic blocks 221, and the clamping drive assembly 23 drives the elastic blocks 221 to disperse radially outward, so that the chuck 22 clamps the product 40. When the elastic blocks 221 converge inward, the product 40 is released. This clamping method makes the chuck 22 not occupy the space above and around the product 40, which is beneficial for the sanding belt 50 to grind the product 40.

[0043] The upper peripheral edge of the elastic block 221 is provided with an arc-shaped positioning groove 222. All the arc-shaped positioning grooves 222 are connected to form a complete annular positioning groove. In use, the product 40 is fitted into the annular positioning groove.

[0044] The rotary drive assembly 24 has a rotating shaft 241 and a first drive member 242 for driving the rotating shaft 241 to rotate. The first drive member 242 has a rotary motor 243, a synchronous belt 244, and a synchronous pulley 245. The rotary motor 243 drives the rotating shaft 241 to rotate via the synchronous belt 244 and the synchronous pulley 245. The rotating shaft 241 is rotatably connected to the mounting base 21. The chuck 22 is located at the upper end of the rotating shaft 241 and can rotate with the rotating shaft 241. The clamping drive assembly 23 has a telescopic rod 231 and a second drive member 232 for driving the telescopic rod 231 to extend and retract. Both the rotating shaft 241 and the chuck 22 are hollow structures. The telescopic rod 231 is telescopically inserted into the rotating shaft 241 and the clamp 22. The upper end of the telescopic rod 231 is provided with a protrusion 233. The outer side wall of the protrusion 233 abuts against the inner side wall of the elastic block 221, so that the elastic block 221 is radially dispersed outward. During operation, the first driving member 242 drives the rotating shaft 241 to rotate, the rotating shaft 241 drives the clamp 22 to rotate, and the clamp 22 drives the telescopic rod 231 to rotate. When the telescopic rod 231 moves downward, the protrusion 233 pushes the elastic block 221 outward, so that the elastic block 221 is radially dispersed outward. When the telescopic rod 231 moves upward, the protrusion 233 releases its push on the elastic block 221, so that the elastic block 221 is radially gathered inward and reset.

[0045] The inner wall of the elastic block 221 is provided with a slope 223. The slope 223 extends from top to bottom in a direction close to the central axis of the clamp 22. The protrusion 233 abuts against the slope 223. It can be understood that the slope 223 can also be provided on the circumferential outer surface of the protrusion 233.

[0046] The upper end of the telescopic rod 231 is threaded with a bolt 234, the central axis of the bolt 234 is coaxial with the central axis of the telescopic rod 231, and the protrusion 233 is the bolt head 234 located on the upper end of the bolt 234. By setting the bolt 234 on the upper end of the telescopic rod 231 and the protrusion 233 being the bolt head 234 located on the upper end of the bolt 234, and using a threaded connection, the connection between the protrusion 233 and the telescopic rod 231 is simple and easy to assemble and disassemble. At the same time, rotating the bolt 234 can adjust the position of the protrusion 233 along the axis of the telescopic rod 231, thereby better driving the chuck 22 to open and close.

[0047] The second driving component 232 has a pushing driving unit 236 and a thrust spring 237. The driving end of the pushing driving unit 236 abuts against the lower end of the telescopic rod 231. The thrust spring 237 is sleeved on the telescopic rod 231. The lower end of the thrust spring 237 abuts against the stop block 235 on the telescopic rod 231. The upper end of the thrust spring 237 abuts against the rotating shaft 241. The thrust spring 237 makes the telescopic rod 231 always have a downward tendency. The pushing driving unit 236 is a cylinder, or it can be a screw + motor drive structure.

[0048] The mounting base 21 is provided with a connecting hole 11, and the frame 10 is provided with an arc-shaped hole 211 corresponding to the connecting hole 11. Screws pass through the arc-shaped hole 211 and the connecting hole 11 in sequence, so that the mounting base 21 can be rotated and adjusted to be mounted on the frame 10, and the tilt angle of the chuck 22 can be adjusted. The rotation center line of the mounting base 21 extends horizontally. By setting a rotatable and adjustable mounting base 21, the tilt angle of the chuck 22 can be adjusted, thereby adjusting the grinding position of the peripheral surface of the product 40 to adapt to the pressure roller 35 and improve the grinding effect.

[0049] It should be noted that the driving end of the second driving member 232 of this utility model can be directly connected to the telescopic rod 231. When the rotating shaft 241 drives the telescopic rod 231 to rotate, the second driving member 232 rotates with the telescopic rod 231.

[0050] It should also be noted that the product 40 of this utility model can be a bezel / case made of metal, or it can be other products 40.

[0051] The working principle of this utility model is as follows: the unwinding assembly 33 releases the sanding belt 50, which passes through the guide roller 3231, the first guide roller group 37, the pressure roller 35, and the second guide roller group 38 in sequence before reaching the winding assembly 34. Driven by the horizontal drive module 31 and the lifting drive module 36, the pressure roller 35 presses the side surface of the sanding belt 50 against the peripheral outer surface of the product 40. The winding assembly 34 continues the winding process, causing the sanding belt 50 to polish the peripheral surface of the product 40. At the same time, the rotary drive assembly 24 drives the chuck 22 to rotate, and the chuck 22 causes the product 40 to rotate at a certain angle, so that the sanding belt 50 polishes a certain area on the product 40. After a certain area of ​​the product 40 is polished, the chuck 22 continues to rotate, so that the sanding belt 50 polishes the next area.

[0052] In summary, this utility model provides a clamping and rotating mechanism 20 and a vertical sanding belt 50 grinding mechanism on the frame 10. The clamping and rotating mechanism 20 has a mounting base 21, and a chuck 22, a clamping drive assembly 23, and a rotating drive assembly 24 mounted on the mounting base 21. The vertical sanding belt 50 grinding mechanism has a lifting drive module 36, a lifting seat, and an unwinding assembly 33, a winding assembly 34, and a pressure roller 35 mounted on the lifting seat. During production, the product 40 is first clamped by the chuck 22, and then the horizontal drive module 36 is used. The drive translation seat 32 moves closer to the chuck 22 so that the pressure roller 35 presses the side surface of the sanding belt 50 against the outer peripheral surface of the product 40. The sanding belt 50 output by the unwinding assembly 33 passes through the pressure roller 35 and reaches the winding assembly 34. At the same time, the rotation drive assembly 24 drives the chuck 22 to rotate, so that the sanding belt 50 polishes the outer peripheral surface of the product 40 during the movement. This automated method polishes the outer peripheral surface of the product 40 to form sanding texture, resulting in high production efficiency, reduced production costs, and better polishing effect.

[0053] 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 horizontal belt sander characterized by, The device comprises a rack, a clamping and rotating mechanism and a horizontal sand belt polishing mechanism arranged on the rack; The clamping and rotating mechanism comprises a mounting seat, a chuck, a clamping driving assembly and a rotating driving assembly arranged on the mounting seat, the clamping driving assembly can drive the chuck to open and close to clamp or release the product, and the rotating driving assembly can drive the chuck to rotate to rotate the product. The horizontal sand belt polishing mechanism comprises a horizontal driving module, a translation seat and a pay-off assembly, a take-up assembly and a pressure roller arranged on the translation seat, the pressure roller is rotationally connected with the translation seat, the sand belt output by the pay-off assembly passes through the pressure roller and reaches the take-up assembly, and the horizontal driving module drives the translation seat to move horizontally relative to the chuck to make the pressure roller abut the side wall of the sand belt against the outer surface of the product.

2. The horizontal belt sander according to claim 1, characterized in that The translation seat is provided with a first sensor, a second sensor, a swing arm and a reset member, the second sensor is arranged between the first sensor and the clamping and rotating mechanism, the swing arm is rotationally connected with the translation seat, the swing arm can swing back and forth between the first sensor and the second sensor, the swing arm is provided with a guide roller, the sand belt output by the pay-off assembly passes through the guide roller and then reaches the pressure roller, and the reset member makes the swing arm always have a trend of rotating towards the second sensor, when the first sensor detects the swing arm, the pay-off assembly releases the sand belt, and when the second sensor detects the swing arm, the pay-off assembly stops releasing the sand belt.

3. The horizontal belt sander according to claim 1, characterized in that The translation seat is provided with a first guide roller set and a second guide roller set, the sand belt output by the pay-off assembly sequentially passes through the first guide roller set, the pressure roller and the second guide roller set and then reaches the take-up assembly.

4. The horizontal belt sander according to claim 3, characterized in that The first guide roller set is provided with a plurality of first guide rollers, the second guide roller set is provided with a plurality of second guide rollers, and the middle part of each of the first guide rollers and the second guide rollers is provided with an arc-shaped convex part protruding radially outward.

5. The horizontal belt sander according to claim 1, characterized in that The upper end of the chuck is provided with a plurality of elastic blocks arranged at intervals, the product can be sleeved outside the elastic blocks, when the clamping driving assembly drives the elastic blocks to disperse radially outward, the elastic blocks abut against the product to clamp the product.

6. The horizontal belt sander according to claim 5, characterized in that The rotating driving assembly comprises a rotating shaft and a first driving member for driving the rotating shaft to rotate, the rotating shaft is rotationally connected with the mounting seat, the chuck is arranged at the upper end of the rotating shaft and can rotate with the rotating shaft, the clamping driving assembly comprises a telescopic rod and a second driving member for driving the telescopic rod to extend and retract, the rotating shaft and the chuck are hollow structures, the telescopic rod can extend and retract and is arranged in the rotating shaft and the chuck, the upper end of the telescopic rod is provided with a convex block, the outer side wall of the convex block abuts against the inner side wall of the elastic block to make the elastic blocks disperse radially outward.

7. The horizontal belt sander according to claim 6, characterized in that The inner side wall of the elastic block is provided with an inclined surface extending from top to bottom towards the center axis of the chuck, and the convex block abuts against the inclined surface.

8. The horizontal belt sander according to claim 6, characterized in that The upper end of the telescopic rod is threadedly connected with a bolt, and the convex block is a bolt head arranged at the upper end of the bolt.

9. The horizontal belt sander according to claim 6, characterized in that The second driving member has a push driving unit and a thrust spring, the driving end of the push driving unit abuts against the lower end of the telescopic rod, the thrust spring is sleeved outside the telescopic rod, the lower end of the thrust spring abuts against the stopper on the telescopic rod, the upper end of the thrust spring abuts against the rotating shaft, and the thrust spring makes the telescopic rod always have a downward movement tendency.

10. A horizontal belt sander according to any one of claims 1-9, characterized in that The mounting seat is provided with a connecting hole, the rack is provided with an arc-shaped hole corresponding to the connecting hole, and a screw is sequentially threaded through the arc-shaped hole and the connecting hole, so that the mounting seat is adjusted to be mounted on the rack in rotation, and the inclination angle of the chuck is adjusted.

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