A sander with adjustable feed roller position

Abstract

The utility model relates to the technical field of sanding machine discloses a sanding machine with adjustable material feeding roller position, which comprises a workbench and a frame, one end of a motor is fixedly connected with a driving roller through the inside of the frame, the driving roller is drivingly connected with a sand belt outside, two driven rollers are rotatably connected to the outside of the frame, the sand belt is drivingly connected to the outside of the driven rollers, a threaded sleeve is fixedly connected to the other side of the frame, a threaded rod is screwedly connected to the inside of the threaded sleeve, a turntable is fixedly connected to the bottom of the threaded rod, the turntable is rotatably connected to the inside of the workbench, the turntable drives the threaded rod to rotate synchronously by manual rotation, the threaded sleeve moves upward along the vertical direction under the action of threaded transmission, the threaded sleeve drives the frame to move upward, and then the driving roller and the sand belt move synchronously by the frame, the height is adjusted conveniently and quickly, and different thicknesses of wood can be processed.

Description

Technical Field

[0001] This utility model relates to the field of sanding machine technology, specifically a sanding machine with an adjustable feed roller position. Background Technology

[0002] In the fields of wood processing, furniture manufacturing, and engineered wood production, sanders are core equipment for achieving fine surface treatment of boards. Through the high-speed rotation of sanding belts or discs, they remove burrs, scratches, and unevenness from the board surface, achieving a smooth and even finish, laying the foundation for subsequent painting and veneer processes. The feed roller, as a key transmission component of the sander, is responsible for smoothly and uniformly conveying the boards to the sanding area. Its positional accuracy and adaptability directly determine the stability of board conveying, the uniformity of sanding, and the quality of the finished product.

[0003] Regarding the existing related technologies, the inventor believes that the following defects exist: the feed roller of the traditional sander is only suitable for a single specification of board. When dealing with boards of different thicknesses and materials, it is necessary to disassemble the equipment for adjustment or replace it with a special model. At the same time, when adjusting the feed roller, the operator needs to manually operate with a wrench and calipers, repeatedly test the machine and measure. Each batch of adjustment requires 1-2 technicians to participate in the whole process, which is time-consuming and labor-intensive. Utility Model Content

[0004] To address the problem that adjusting the feed rollers requires manual operation with wrenches and calipers, which is time-consuming and labor-intensive, this invention provides a sander with an adjustable feed roller position.

[0005] This utility model is achieved using the following technical solution: a sander with an adjustable feed roller position, comprising a worktable and a frame, the frame being located at the top of the worktable, a motor being installed inside the frame, one end of the motor being fixedly connected to a drive roller through the inside of the frame, a sanding belt being driven to the outside of the drive roller, two driven rollers being rotatably connected to the outside of the frame, the sanding belt being driven to the outside of the driven rollers, a pressure plate being fixedly connected to the outside of the frame, the bottom of the pressure plate being in contact with the inside of the sanding belt; The other side of the frame is fixedly connected to a threaded sleeve, the inside of which is threaded to a threaded rod. The bottom of the threaded rod is fixedly connected to a turntable, which is rotatably connected to the inside of the worktable. The top of the threaded rod is fixedly connected to a limit ring.

[0006] Preferably, the worktable has grooves machined inside, and the turntable is rotatably connected inside the grooves.

[0007] Preferably, the bottom of the groove is machined with a rotating groove, and the bottom of the threaded rod is rotatably connected inside the rotating groove.

[0008] Preferably, a handle is provided at one top end of the workbench, and a limit pin is fixedly connected to the bottom of the handle. The limit pin passes through the top of the workbench, and multiple limit holes are machined on the top of the turntable. The bottom of the limit pin is inserted into the inside of the limit holes.

[0009] Preferably, a return spring is provided on the outside of the limiting pin, the top end of the return spring is fixedly connected to the bottom of the handle, and the bottom end of the return spring is fixedly connected to the top surface of the worktable.

[0010] Preferably, a limiting frame is fixedly connected to the outer side of the frame, and a column is movably connected inside the limiting frame. The bottom of the column is fixedly connected to the top of the workbench.

[0011] Preferably, an annular sleeve is fixedly connected to the inner side of the frame, and a guide rod is movably connected inside the annular sleeve. The bottom of the guide rod is fixedly connected to the top of the worktable.

[0012] Compared with the prior art, the beneficial effects of this utility model are: In use, this invention involves manually rotating a turntable, which in turn drives a threaded rod to rotate synchronously. As the threaded rod rotates, it causes the threaded sleeve to move upward in the vertical direction under the action of thread transmission. The threaded sleeve then drives the frame to move upward, which in turn drives the drive roller and sanding belt to move synchronously, thus achieving convenient and rapid height adjustment. This allows for the processing of wood of different thicknesses. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the workbench of this utility model; Figure 3 This is a rear view of the frame of this utility model.

[0014] In the diagram: 1. Workbench; 2. Frame; 3. Motor; 4. Drive roller; 5. Sanding belt; 6. Driven roller; 7. Pressure plate; 8. Turntable; 9. Threaded rod; 10. Threaded sleeve; 11. Limiting ring; 12. Groove; 13. Rotating groove; 14. Handle; 15. Limiting pin; 16. Limiting hole; 17. Return spring; 18. Limiting frame; 19. Column; 20. Annular sleeve; 21. Guide rod. Detailed Implementation

[0015] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0016] Example 1: Please refer to Figure 1 - Figure 3 This embodiment of a sander with an adjustable feed roller position includes a worktable 1 and a frame 2. The frame 2 is located on top of the worktable 1. A motor 3 is installed inside the frame 2. One end of the motor 3 passes through the inside of the frame 2 and is fixedly connected to a drive roller 4. A sanding belt 5 is driven to the outside of the drive roller 4. Two driven rollers 6 are rotatably connected to the outside of the frame 2. The sanding belt 5 is driven to the outside of the driven rollers 6. A pressure plate 7 is fixedly connected to the outside of the frame 2. The bottom of the pressure plate 7 is in contact with the inside of the sanding belt 5. A threaded sleeve 10 is fixedly connected to the other side of the frame 2. A threaded rod 9 is threadedly connected inside the threaded sleeve 10. A turntable 8 is fixedly connected to the bottom of the threaded rod 9. The turntable 8 is rotatably connected inside the worktable 1. A limit ring 11 is fixedly connected to the top of the threaded rod 9. When the motor 3 is started, the motor 3 will drive the active roller 4 to rotate, and the active roller 4 will drive the sanding belt 5 to rotate at high speed, thereby carrying out polishing and grinding operations on the material. The two driven rollers 6 can limit and guide the transmission trajectory of the sanding belt 5, and at the same time assist the active roller 4 in maintaining the tension of the sanding belt and ensuring that the sanding belt rotates smoothly. The pressure plate 7 can make the outer side of the sanding belt 5 fully and evenly contact the material, avoiding local wrinkles or displacement of the sanding belt 5 due to uneven force, and ensuring the flatness of the grinding surface. Secondly, when the height of the frame 2 needs to be adjusted, the turntable 8 is manually rotated. The turntable 8 will drive the threaded rod 9 to rotate synchronously. When the threaded rod 9 rotates, it will drive the threaded sleeve 10 to move upward in the vertical direction under the action of thread transmission. The threaded sleeve 10 will then drive the frame 2 to move upward, and then drive the active roller 4 and sanding belt 5 to move synchronously through the frame 2, so as to achieve convenient and fast height adjustment, thereby enabling the processing of wood of different thicknesses. Furthermore, the worktable 1 has a groove 12 machined inside, and the turntable 8 is rotatably connected inside the groove 12. The bottom of the groove 12 has a rotating groove 13 machined inside, and the bottom of the threaded rod 9 is rotatably connected inside the rotating groove 13. When the turntable 8 is rotated, the turntable 8 will rotate along the inside of the groove 12. The groove 12 will limit the rotation of the turntable 8. The rotation of the turntable 8 will synchronously drive the threaded rod 9 to rotate. The threaded rod 9 will rotate along the inside of the worktable 1, and the bottom of the threaded rod 9 will rotate along the inside of the rotating groove 13. The rotating groove 13 will limit the movement of the threaded rod 9. Furthermore, a handle 14 is provided at one end of the top of the workbench 1. The bottom of the handle 14 is fixedly connected to a limit pin 15. The limit pin 15 passes through the top of the workbench 1. The top of the turntable 8 is machined with multiple limit holes 16. The bottom of the limit pin 15 is inserted into the inside of the limit hole 16. When the turntable 8 needs to be rotated, the handle 14 is lifted upwards first, so that the handle 14 moves upwards and disengages from the inside of the limit hole 16 at the top of the turntable 8, thereby releasing the limit fixation of the turntable 8. When the position adjustment of the feed roller is completed, the limit pin 15 passes through the inside of the workbench 1 and inserts into the inside of the limit hole 16, thereby limiting and fixing the turntable 8 through the limit hole 16, preventing the rotation of the turntable 8 from causing the position of the frame 2 to shift. Furthermore, a return spring 17 is provided on the outside of the limit pin 15. The top end of the return spring 17 is fixedly connected to the bottom of the handle 14, and the bottom end of the return spring 17 is fixedly connected to the top surface of the workbench 1. With the return spring 17 provided, when the handle 14 is pulled, the handle 14 will drive the return spring 17 to stretch. When the handle 14 is released, the return spring 17 will return to its original position and retract. The return spring 17 will drive the limit pin 15 to move, so that the limit pin 15 can be inserted into the interior of the limit hole 16. Furthermore, a limiting frame 18 is fixedly connected to the outer side of the frame 2, and a column 19 is movably connected inside the limiting frame 18. The bottom of the column 19 is fixedly connected to the top of the workbench 1. When the frame 2 moves upward, the frame 2 will drive the limiting frame 18 to move upward, and the limiting frame 18 will move upward along the outside of the column 19, thereby limiting the vertical movement of the frame 2. Furthermore, an annular sleeve 20 is fixedly connected to the inner side of the frame 2, and a guide rod 21 is movably connected inside the annular sleeve 20. The bottom of the guide rod 21 is fixedly connected to the top of the worktable 1. When the frame 2 moves upward, the frame 2 will drive the annular sleeve 20 to move upward, and the annular sleeve 20 will move upward along the outside of the guide rod 21, thereby keeping the up and down movement of the frame 2 stable.

[0017] Working principle: When the motor 3 is started, the motor 3 will drive the active roller 4 to rotate, which in turn drives the sanding belt 5 to rotate and polish the material. The two driven rollers 6 provide auxiliary support for the rotation of the sanding belt 5. The pressure plate 7 ensures that the outer side of the sanding belt 5 is in full contact with the material, preventing deformation of the sanding belt 5. When the height of the frame 2 needs to be adjusted, the turntable 8 is manually rotated. The turntable 8 will drive the threaded rod 9 to rotate, which will cause the threaded sleeve 10 to move upward. The threaded sleeve 10 will then drive the frame 2 to move upward, thereby driving the active roller 4 and the sanding belt 5 to move. This allows for quick and easy adjustment, enabling the processing of wood of different thicknesses.

[0018] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A sander with adjustable feed roller position, comprising a worktable (1) and a frame (2), characterized in that, The frame (2) is located on top of the workbench (1). A motor (3) is installed inside the frame (2). One end of the motor (3) passes through the inside of the frame (2) and is fixedly connected to the drive roller (4). The drive roller (4) is connected to the sanding belt (5) via a drive. Two driven rollers (6) are rotatably connected to the outside of the frame (2). The sanding belt (5) is connected to the outside of the driven rollers (6) via a drive. A pressure plate (7) is fixedly connected to the outside of the frame (2). The bottom of the pressure plate (7) is in contact with the inside of the sanding belt (5). Among them, a threaded sleeve (10) is fixedly connected to the other side of the frame (2), a threaded rod (9) is threadedly connected inside the threaded sleeve (10), a turntable (8) is fixedly connected to the bottom of the threaded rod (9), the turntable (8) is rotatably connected to the inside of the workbench (1), and a limit ring (11) is fixedly connected to the top of the threaded rod (9).

2. A sander with an adjustable feed roller position according to claim 1, characterized in that, The workbench (1) has a groove (12) machined inside, and the turntable (8) is rotatably connected inside the groove (12).

3. A sander with an adjustable feed roller position according to claim 2, characterized in that, The bottom of the groove (12) is machined with a rotating groove (13), and the bottom of the threaded rod (9) is rotatably connected to the inside of the rotating groove (13).

4. A sander with an adjustable feed roller position according to claim 1, characterized in that, The top end of the workbench (1) is provided with a handle (14), and the bottom of the handle (14) is fixedly connected to a limit pin (15). The limit pin (15) passes through the top of the workbench (1). The top of the turntable (8) is machined with multiple limit holes (16), and the bottom of the limit pin (15) is plugged into the inside of the limit hole (16).

5. A sander with an adjustable feed roller position according to claim 4, characterized in that, The limiting pin (15) is provided with a return spring (17) on its outside. The top end of the return spring (17) is fixedly connected to the bottom of the handle (14), and the bottom end of the return spring (17) is fixedly connected to the top surface of the workbench (1).

6. A sander with an adjustable feed roller position according to claim 1, characterized in that, The frame (2) is fixedly connected to a limiting frame (18) on the outside, and a column (19) is movably connected inside the limiting frame (18). The bottom of the column (19) is fixedly connected to the top of the workbench (1).

7. A sander with an adjustable feed roller position according to claim 1, characterized in that, The inner side of the frame (2) is fixedly connected to an annular sleeve (20), and the inside of the annular sleeve (20) is movably connected to a guide rod (21). The bottom of the guide rod (21) is fixedly connected to the top of the workbench (1).

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