Double-station belt sander
By introducing adjustment components and a motor drive system into the dual-station belt sander, precise tension and position control of the sanding belt can be achieved, solving the problem of limited applicability of existing equipment and improving processing efficiency and accuracy.
Patent Information
- Application Number
- CN202520476657.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-18
AI Technical Summary
Existing dual-station belt sanders have a fixed belt structure, which makes it impossible to flexibly adjust the tension, angle, or position, thus limiting their applicability. When processing complex workpieces, manual adjustment of the equipment is required, increasing workload and the probability of errors.
By employing adjustment components and linking movable frames a and b, precise control of the tension and position of the sanding belt is achieved. Combined with dual-head motor drive and servo motor control, stable operation and precise adjustment of the sanding belt are ensured.
This enables belt sanders to adapt to workpieces of different shapes and sizes, improving grinding efficiency and precision while reducing the need for manual adjustments.
Smart Images

Figure CN223834203U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of belt sander technology, specifically a dual-station belt sander. Background Technology
[0002] A belt sander is a common processing equipment for both metallic and non-metallic materials, primarily used for grinding and cutting. It operates based on the grinding and cutting principles of abrasive belts, using the rotation and friction of the belt to grind and finish the workpiece. A dual-station belt sander is a belt grinding device with two independent working areas, capable of simultaneously or alternately grinding, polishing, or performing other surface treatments on two workpieces. Its dual-station design significantly improves production efficiency, making it suitable for processing scenarios requiring high precision and efficiency.
[0003] Existing dual-station belt sanders, due to their fixed belt structure design, cannot flexibly adjust the belt tension, angle, or position according to the characteristics of the object being sanded (such as shape, size, and material) to adapt to different sanding needs, thus limiting the applicable range of belt sanders. When processing complex workpieces, operators need to constantly stop the machine and manually adjust the equipment to adapt to the workpiece's sanding requirements, increasing workload and the probability of errors. Utility Model Content
[0004] The purpose of this utility model is to provide a dual-station belt sander to solve the problem mentioned in the background art. In the process of using existing dual-station belt sanders, the structure of the sanding belt is mostly fixed, which makes it impossible to flexibly adjust the tension, angle or position of the sanding belt according to the characteristics of the object being sanded (such as shape, size, material, etc.) to adapt to different sanding needs, thus limiting the applicable range of the belt sander. When processing complex workpieces, the operator needs to stop the machine frequently and manually adjust the equipment to adapt to the sanding needs of the workpiece, increasing the workload and the probability of errors.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a dual-station belt sander, comprising a base and an adjustment section:
[0006] A support frame is welded and fixed to the top of the base. A drive wheel and a transmission wheel are rotatably mounted on both sides of the support frame. A sanding belt is wound between the drive wheel and the drive wheel. An adjustment part is located on the side of the support frame. The adjustment part also has a connecting frame fixedly mounted on the side of the support frame. A movable frame a and a movable frame b are slidably mounted laterally inside the connecting frame. A gear frame is fixedly mounted on the side of the connecting frame. A transmission gear is rotatably mounted inside the gear frame. The transmission gear meshes with movable frame a and movable frame b. The movement of movable frame a drives the transmission gear to rotate, thereby driving movable frame b to rotate.
[0007] By adopting the above technical solution, the adjustment unit can achieve precise control of the tension and position of the sanding belt through the linkage of the moving frame a and the moving frame b, thereby adapting to the grinding needs of workpieces of different shapes and sizes.
[0008] Preferably, there are two drive wheels, which are mirror-symmetrical about the center of the support frame. A dual-head motor is installed on the top of the support frame, and the output ends of the dual-head motor are connected to one drive wheel on each side.
[0009] By adopting the above technical solution, independent or synchronous operation of the two workstations can be achieved. The two drive wheels are driven by dual-head motors, which control the movement of the two sanding belts respectively, thereby improving grinding efficiency and adapting to the processing requirements of different workpieces.
[0010] Preferably, the adjustment part also has a groove a formed in the middle of the connecting frame, and the movable frame a is laterally embedded in the groove a and laterally slidably connected to the connecting frame.
[0011] By adopting the above technical solution, the movable frame a can slide smoothly within the connecting frame. The slide groove a provides guidance for the movable frame a, ensuring its stability and accuracy when adjusting the tension of the sand belt.
[0012] Preferably, the adjustment part also has two slide grooves b formed inside the connecting frame, the slide grooves b being located on both sides of the slide groove a, and the two movable frames b being laterally embedded in the two slide grooves b and laterally slidably connected to the connecting frame.
[0013] By adopting the above technical solution, the smooth sliding of the movable frame b within the connecting frame can be achieved. The slide groove b is located on both sides of the slide groove a, ensuring more precise linkage adjustment between the movable frame b and the movable frame a, thereby optimizing the running trajectory of the sanding belt.
[0014] Preferably, the adjustment part also has a lead screw rotatably disposed inside the connecting frame, and a drive motor is fixedly disposed on the side of the connecting frame, the output end of the drive motor being connected to the lead screw.
[0015] By adopting the above technical solution, the lead screw is driven by the drive motor to rotate inside the connecting frame.
[0016] Preferably, the adjustment part also has a threaded groove at one end of the movable frame a, and the lead screw passes through the threaded groove and is nested and threadedly connected to the movable frame a.
[0017] By adopting the above technical solution, the lateral displacement of the moving frame a can be driven by the rotation of the lead screw.
[0018] Preferably, the adjustment part also has locking teeth a disposed on both sides of the movable frame a, which are engaged with the transmission gear.
[0019] By adopting the above technical solution, the movement of the mobile frame a can drive the transmission gear to rotate, thereby linking the mobile frame b.
[0020] Preferably, the adjustment part also has a locking tooth b disposed on the side of the movable frame b, which meshes with the transmission gear.
[0021] By adopting the above technical solution, the rotation of the transmission gear can drive the moving frame b to move synchronously, thereby realizing the linkage adjustment of the two workstations.
[0022] Preferably, the adjustment part also has a grooved wheel a disposed at one end of the movable frame a, the grooved wheel a abutting against the sanding belt, and a grooved wheel b disposed at one end of the movable frame b, the grooved wheel b abutting against the sanding belt.
[0023] By adopting the above technical solutions, it can be ensured that the sanding belt will not deviate or fall off during operation, while improving the accuracy and stability of grinding.
[0024] Compared with the prior art, the beneficial effects of this utility model are: by providing an adjustment part, the adjustment part can achieve precise control of the tension and position of the sanding belt through the linkage of the moving frame a and the moving frame b, thereby adapting to the grinding needs of workpieces of different shapes and sizes. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the overall structure of this application;
[0026] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this application;
[0027] Figure 3 This is a schematic cross-sectional view of the adjustment section of this application;
[0028] Figure 4 This is a schematic cross-sectional view of the mobile frame a in this application.
[0029] In the diagram: 1. Base; 101. Support frame; 102. Drive wheel; 103. Dual-head motor; 104. Transmission wheel; 105. Sanding belt; 2. Adjustment part; 201. Connecting frame; 202. Slide groove a; 203. Slide groove b; 204. Lead screw; 205. Drive motor; 206. Moving frame a; 207. Threaded groove; 208. Clamping tooth a; 209. Grooved wheel a; 210. Moving frame b; 211. Clamping tooth b; 212. Grooved wheel b; 213. Gear frame; 214. Transmission gear. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] Example 1
[0032] Please see Figure 1 , Figure 2 and Figure 3 This embodiment provides a technical solution: a dual-station belt sander, including a base 1 and an adjustment part 2.
[0033] A support frame 101 is welded and fixed to the top of the base 1. Power wheels 102 are rotatably mounted on both sides of the support frame 101, and transmission wheels 104 are also rotatably mounted on both sides of the support frame 101. Sanding belts 105 are wound between the transmission wheels 104 and the power wheels 102. There are two power wheels 102, arranged in a mirror-symmetrical structure along the center of the support frame 101. A dual-head motor 103 is mounted on the top of the support frame 101. The output ends of the dual-head motor 103 are connected to one of the power wheels 102 on each side, enabling independent or synchronous operation of two workstations. The two power wheels 102 are driven by the dual-head motor 103, which controls the movement of the two sanding belts 105, thereby improving grinding efficiency and adapting to the processing needs of different workpieces. The dual-head motor 103 is a specially designed electric motor, characterized by output shafts extending from both ends of the motor shaft, allowing it to drive two devices or apparatuses simultaneously. The working principle of the dual-head motor 103 is the same as that of a regular motor, based on electromagnetic induction and magnetic field effects. Its core is to convert electrical energy into mechanical energy to drive the two output shafts to rotate synchronously. The above is the existing technology and will not be repeated below. When selecting a model, it should be compatible with this device.
[0034] The adjustment unit 2 is located on the side of the support frame 101. A connecting frame 201 is fixedly installed on the side of the support frame 101. The fixing method is a conventional detachable fixing, such as bolt connection or snap-fit connection. A movable frame a206 and a movable frame b210 are slidably installed laterally inside the connecting frame 201. A gear frame 213 is fixedly installed on the side of the connecting frame 201. A transmission gear 214 is rotatably installed inside the gear frame 213. The transmission gear 214 is meshed with the movable frame a206 and the movable frame b210. The movement of the movable frame a206 drives the transmission gear 214 to rotate, which in turn drives the movable frame b210 to rotate. The adjustment unit 2 can achieve precise control of the tension and position of the sanding belt 105 through the linkage of the movable frame a206 and the movable frame b210, thereby adapting to the grinding needs of workpieces of different shapes and sizes.
[0035] Example 2
[0036] Please see Figure 2 , Figure 3 and Figure 4 This embodiment provides a technical solution: a dual-station belt sander, including a base 1 and an adjustment part 2.
[0037] A groove a202 is provided in the middle of the connecting frame 201. The movable frame a206 is laterally embedded in the groove a202 and is laterally slidably connected to the connecting frame 201. This allows the movable frame a206 to slide smoothly within the connecting frame 201. The groove a202 provides guidance for the movable frame a206, ensuring its stability and accuracy when adjusting the tension of the sand belt 105.
[0038] Two sliding grooves b203 are formed inside the connecting frame 201, located on both sides of the sliding groove a202. Two movable frames b210 are laterally embedded in the two sliding grooves b203 and slidably connected to the connecting frame 201, enabling the movable frames b210 to slide smoothly within the connecting frame 201. The sliding grooves b203 are located on both sides of the sliding groove a202, ensuring more precise linkage adjustment between the movable frames b210 and a206, thereby optimizing the running trajectory of the sanding belt 105.
[0039] A lead screw 204 is rotatably mounted inside the connecting frame 201. A drive motor 205 is fixedly mounted on the side of the connecting frame 201. The output end of the drive motor 205 is connected to the lead screw 204. The drive motor 205 drives the lead screw 204 to rotate inside the connecting frame 201. The drive motor 205 is a servo motor, a high-precision, high-performance motor capable of precisely controlling position, speed, and acceleration. Its working principle is based on a closed-loop control system, mainly composed of a motor, encoder (or sensor), and controller. The above is existing technology and will not be elaborated further. When selecting a model, it should be compatible with this device.
[0040] A threaded groove 207 is provided at one end of the movable frame a206. The lead screw 204 passes through the threaded groove 207 and is nested with the movable frame a206 in a threaded connection. The lateral displacement of the movable frame a206 can be driven by the rotation of the lead screw 204.
[0041] The movable frame a206 is integrally provided with locking teeth a208 on both sides. The locking teeth a208 mesh with the transmission gear 214, so that the movement of the movable frame a206 can drive the transmission gear 214 to rotate, thereby linking the movable frame b210.
[0042] A locking tooth b211 is integrally provided on the side of the movable frame b210. The locking tooth b211 meshes with the transmission gear 214, which allows the rotation of the transmission gear 214 to drive the movable frame b210 to move synchronously, thereby realizing the linkage adjustment of the two workstations.
[0043] A grooved wheel a209 is rotatably provided at one end of the movable frame a206, and the grooved wheel a209 abuts against the sanding belt 105. A grooved wheel b212 is provided at one end of the movable frame b210, and the grooved wheel b212 abuts against the sanding belt 105. This ensures that the sanding belt 105 will not deviate or fall off during operation, while improving the accuracy and stability of grinding.
[0044] Working principle: First, the device is powered on. Then, the two drive wheels 102 are driven by the dual-head motor 103 to control the movement of the two sanding belts 105, realizing independent or synchronous operation of the two stations. The adjustment unit 2 drives the lead screw 204 to rotate through the drive motor 205, so that the moving frame a206 and the moving frame b210 are linked together to accurately adjust the tension, position and shape of the sanding belt 105. The grooved wheel a209 and the grooved wheel b212 ensure the stable operation of the sanding belt 105 and prevent it from running off-center or falling off, thereby adapting to the grinding needs of workpieces of different shapes and sizes and improving grinding efficiency and accuracy.
[0045] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A dual-station belt sander, characterized in that, include: A base (1) is provided with a support frame (101) welded and fixed on the top of the base (1). A power wheel (102) is rotatably provided on both sides of the support frame (101). A transmission wheel (104) is rotatably provided on both sides of the support frame (101). A sand belt (105) is wound between the transmission wheel (104) and the power wheel (102). Adjustment part (2) is provided on the side of support frame (101). Adjustment part (2) also has a connecting frame (201) fixedly provided on the side of support frame (101). A movable frame a (206) is slidably provided inside the connecting frame (201). A movable frame b (210) is slidably provided inside the connecting frame (201). A gear frame (213) is fixedly provided on the side of the connecting frame (201). A transmission gear (214) is rotatably provided inside the gear frame (213). The transmission gear (214) is meshed with the movable frame a (206). The transmission gear (214) is meshed with the movable frame b (210). The movement of the movable frame a (206) drives the transmission gear (214) to rotate, thereby driving the movable frame b (210) to rotate.
2. The dual-station belt sander according to claim 1, characterized in that: There are two drive wheels (102), and the two drive wheels (102) are mirror symmetrical about the center of the support frame (101). A dual-head motor (103) is provided on the top of the support frame (101), and the output ends of the dual-head motor (103) on both sides are connected to one drive wheel (102).
3. A dual-station belt sander according to claim 1, characterized in that: The adjustment part (2) also has a groove a (202) opened in the middle of the connecting frame (201), and the movable frame a (206) is laterally embedded in the groove a (202) and laterally slidably connected to the connecting frame (201).
4. A dual-station belt sander according to claim 1, characterized in that: The adjustment part (2) also has two slide grooves b (203) opened inside the connecting frame (201), the slide grooves b (203) are located on both sides of the slide groove a (202), and the two movable frames b (210) are laterally embedded in the two slide grooves b (203) and laterally slidably connected to the connecting frame (201).
5. A dual-station belt sander according to claim 1, characterized in that: The adjustment part (2) also has a lead screw (204) rotatably disposed inside the connecting frame (201), and a drive motor (205) is fixedly disposed on the side of the connecting frame (201), the output end of the drive motor (205) being connected to the lead screw (204).
6. A dual-station belt sander according to claim 5, characterized in that: The adjustment part (2) also has a threaded groove (207) opened at one end of the movable frame a (206), and the lead screw (204) passes through the threaded groove (207) and is nested and threadedly connected to the movable frame a (206).
7. A dual-station belt sander according to claim 1, characterized in that: The adjustment part (2) also has locking teeth (208) disposed on both sides of the movable frame (206), which are engaged with the transmission gear (214).
8. A dual-station belt sander according to claim 1, characterized in that: The adjustment part (2) also has a locking tooth b (211) disposed on the side of the movable frame b (210), which meshes with the transmission gear (214).
9. A dual-station belt sander according to claim 1, characterized in that: The adjustment part (2) also has a grooved wheel a (209) provided at one end of the movable frame a (206), which abuts against the sanding belt (105), and a grooved wheel b (212) provided at one end of the movable frame b (210), which abuts against the sanding belt (105).