Abrasive belt sander and surface treatment apparatus

Abstract

The utility model belongs to surface treatment technical field discloses a kind of abrasive belt machine and surface treatment equipment, including lifting frame, polishing device and lifting device, polishing device includes driving mechanism, driving roller, passive roller and abrasive belt, driving roller and passive roller are spaced, parallel and rotationally connected in lifting frame, for tensioning abrasive belt, driving mechanism is connected in lifting frame, and its output end is transmission connection with driving roller, for driving driving roller rotation;The output end of lifting device is transmission connection with lifting frame, for driving lifting frame moves along vertical direction, to drive polishing device whole moves along vertical direction.By adjusting the position of polishing device along the vertical direction, it can quickly and accurately adapt to different thickness or shape of workpiece, meet the diversified processing needs, improve the surface treatment effect, improve the production efficiency, improve the versatility and practicality of abrasive belt machine.

Description

Technical Field

[0001] This utility model relates to the field of surface treatment technology, and in particular to a belt sander and surface treatment equipment. Background Technology

[0002] In modern industrial manufacturing, belt sanders, as a key surface processing equipment, are widely used in various industries such as metal processing, wood processing, and composite material polishing due to their high grinding efficiency and flexible operation. Belt sanders rely on a motor to drive the abrasive belt at high speed, utilizing the relative friction between the abrasive particles attached to the belt surface and the workpiece surface to achieve grinding or polishing treatments, thus meeting the desired processing accuracy and surface quality requirements.

[0003] However, existing belt sanders typically suffer from fixed working heights or complex height adjustments, making it difficult to tailor them to workpieces of varying thicknesses and shapes, and thus failing to meet diverse processing needs. For example, in metalworking, existing belt sanders often fail to provide adequate grinding or polishing results, and may even damage the workpiece, due to their inability to flexibly adjust the working height for plates of varying thicknesses or parts with complex curved surfaces. Similarly, in the wood processing industry, belt sanders of different specifications require adjustable processing heights, which fixed-height sanders clearly cannot handle. This technical deficiency severely limits the versatility of belt sanders and reduces production efficiency.

[0004] Therefore, there is an urgent need to propose a belt sander and surface treatment equipment to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a belt sander and surface treatment equipment that can quickly and accurately adapt to workpieces of different thicknesses or shapes, meet diverse processing needs, improve surface treatment effects, increase production efficiency, and enhance the versatility and practicality of the belt sander.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A belt sander, comprising:

[0008] Lifting frame;

[0009] A grinding device includes a drive mechanism, a drive roller, a driven roller, and a sanding belt. The drive roller and the driven roller are spaced apart, parallel, and rotatably connected to the lifting frame for tensioning the sanding belt. The drive mechanism is connected to the lifting frame, and its output end is drivenly connected to the drive roller for driving the drive roller to rotate.

[0010] A lifting device, the output end of which is connected to the lifting frame for driving the grinding device to move vertically.

[0011] In some optional embodiments, the driving mechanism includes a grinding drive component, a first transmission wheel, a second transmission wheel, and a transmission belt. One end of the shaft of the drive roller passes through the lifting frame and is connected to the second transmission wheel. The output end of the grinding drive component is drivenly connected to the first transmission wheel to drive the first transmission wheel to rotate. The first transmission wheel and the second transmission wheel together tension the transmission belt.

[0012] In some optional embodiments, the lifting frame is connected to a connecting frame, and the grinding device further includes a mounting assembly for mounting the grinding drive component. The lifting device includes a mounting base, a lifting drive component, and a screw jack. Both the lifting drive component and the screw jack are connected to the mounting base. One end of the screw of the screw jack is connected to the mounting assembly, and the other end is connected to the connecting frame. The output end of the lifting drive component is connected to the worm gear transmission of the screw jack for driving the screw of the screw jack to move vertically.

[0013] In some optional embodiments, the lifting device further includes a first synchronous gear, a second synchronous gear, and a synchronous belt. The first synchronous gear is connected to the output end of the lifting drive, the second synchronous gear is connected to the worm gear of the screw jack, and the synchronous belt meshes with the first synchronous gear and the second synchronous gear.

[0014] In some optional embodiments, the mounting assembly includes a base plate, a mounting plate, a guide sleeve, and a guide post. The mounting plate and the base plate are arranged vertically, and one of them is provided with the guide sleeve and the other is provided with the guide post. The guide sleeve and the guide post are slidably engaged in the vertical direction, and the grinding drive is mounted on the mounting plate.

[0015] In some optional embodiments, the lifting device further includes a slide rail and a slider that slide together in a vertical direction, wherein one of the lifting frame and the mounting base is provided with the slide rail and the other is provided with the slider.

[0016] In some optional embodiments, the grinding device further includes a first support member, a second support member, and a tensioning drive member. The first support member is connected to the lifting frame and is used to install the tensioning drive member. The second support member is disposed at the output end of the tensioning drive member and is used to install the passive roller. The tensioning drive member is used to drive the passive roller to move toward or away from the active roller.

[0017] In some optional embodiments, the belt sander further includes a correction mechanism, which includes a correction drive, a correction wheel, and a correction shaft. The correction shaft is connected to one end of the second support member, the correction mechanism is disposed on the first support member, the correction wheel is disposed at the output end of the correction drive, and the correction wheel has a correction groove circumferentially formed. The correction shaft is engaged with the correction groove, and the correction drive can drive the passive roller to swing through the correction wheel and the correction shaft.

[0018] In some alternative embodiments, the grinding device further includes a protective cover that covers the sanding belt.

[0019] A surface treatment apparatus includes a transport device and a belt sander as described in any of the preceding claims, the transport device being disposed below the sander belt for transporting a workpiece, wherein the sander belt is capable of grinding the workpiece continuously moving on the transport device as the workpiece passes below it.

[0020] The beneficial effects of this utility model are:

[0021] This utility model provides a belt sander and surface treatment equipment, including a lifting frame, a grinding device, and a lifting mechanism. The grinding device includes a drive mechanism, a drive roller, a driven roller, and a sanding belt. The drive roller and driven roller are spaced apart, parallel, and rotatably connected to the lifting frame for tensioning the sanding belt. The drive mechanism is connected to the lifting frame, and its output end is driven by the drive roller to drive its rotation. The output end of the lifting mechanism is driven by the lifting frame to drive the lifting frame to move vertically, thereby moving the entire grinding device vertically. By adjusting the vertical position of the grinding device, it can quickly and accurately adapt to workpieces of different thicknesses or shapes, meeting diverse processing needs, improving surface treatment effects, increasing production efficiency, and enhancing the versatility and practicality of the belt sander. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram of the belt sander of this utility model;

[0023] Figure 2 This is a schematic diagram of the internal structure of the belt sander of this utility model;

[0024] Figure 3 This is a structural schematic diagram of the lifting device of this utility model;

[0025] Figure 4 This is a schematic diagram of the correction mechanism of this utility model.

[0026] In the picture:

[0027] 1. Lifting frame; 2. Grinding device; 21. Drive mechanism; 211. Grinding drive component; 212. First transmission wheel; 213. Second transmission wheel; 214. Transmission belt; 22. Active roller; 23. Passive roller; 24. Sanding belt; 25. Mounting assembly; 251. Base plate; 252. Mounting plate; 253. Guide sleeve; 254. Guide column; 26. First support component; 27. Second support component; 28. Tensioning drive component; 3. Lifting device; 31. Mounting seat; 32. Lifting drive component; 33. Screw jack; 34. First synchronous gear; 35. Second synchronous gear; 36. Synchronous belt; 37. Slide rail; 38. Slider; 4. Connecting frame; 5. Correction mechanism; 51. Correction drive component; 52. Correction wheel; 521. Correction groove; 53. Correction shaft; 6. Protective cover; 7. Through-beam photoelectric sensor. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0029] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device 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. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0032] like Figures 1-4 As shown, this embodiment provides a belt sander, including a lifting frame 1, a grinding device 2, and a lifting device 3. The grinding device 2 includes a drive mechanism 21, a drive roller 22, a driven roller 23, and a sanding belt 24. The drive roller 22 and the driven roller 23 are spaced apart, parallel, and rotatably connected to the lifting frame 1 for tensioning the sanding belt 24. The drive mechanism 21 is connected to the lifting frame 1, and its output end is drivenly connected to the drive roller 22 for driving the drive roller 22 to rotate. The output end of the lifting device 3 is drivenly connected to the lifting frame 1 for driving the lifting frame 1 to move in the vertical direction, thereby driving the entire grinding device 2 to move in the vertical direction.

[0033] The workpiece is supported on the processing platform. By adjusting the position of the grinding device 2 in the vertical direction, the distance between the sanding belt 24 and the processing platform can be adjusted, thereby quickly and accurately adapting to workpieces of different thicknesses or shapes, meeting diverse processing needs, improving surface treatment effects, increasing production efficiency, and enhancing the versatility and practicality of the belt sander.

[0034] In some optional embodiments, the drive mechanism 21 includes a grinding drive 211, a first transmission wheel 212, a second transmission wheel 213, and a transmission belt 214. One end of the shaft of the drive roller 22 passes through the lifting frame 1 and is connected to the second transmission wheel 213. The output end of the grinding drive 211 is connected to the first transmission wheel 212. The first transmission wheel 212 and the second transmission wheel 213 together tension the transmission belt 214. The grinding drive 211 drives the first transmission wheel 212 to rotate, thereby driving the drive roller 22 to rotate, and thus causing the sanding belt 24 to move.

[0035] Optionally, the grinding drive 211 may include, but is not limited to, an electric motor or a pneumatic motor, which is not limited here.

[0036] like Figure 2As shown, in some optional embodiments, the lifting frame 1 is connected to the connecting frame 4, and the grinding device 2 also includes a mounting assembly 25 for mounting the grinding drive component 211. The lifting device 3 includes a mounting base 31, a lifting drive component 32, and a screw jack 33. Both the lifting drive component 32 and the screw jack 33 are connected to the mounting base 31. One end of the screw of the screw jack 33 is connected to the mounting assembly 25, and the other end is connected to the connecting frame 4. The output end of the lifting drive component 32 is connected to the worm gear transmission of the screw jack 33 to drive the screw of the screw jack 33 to move in the vertical direction. The screw drives the mounting base 31 and the lifting frame 1 to move, thereby realizing the overall lifting of the grinding device 2. This not only allows for quick and flexible adjustment of the height of the sanding belt 24 to meet diverse processing needs and significantly improves the versatility of the belt sander, but also, compared with traditional belt sanders, this structure, through precise transmission design, ensures the stability and accuracy of height adjustment during the grinding process, reduces workpiece damage caused by unsuitable height, and improves processing quality and effect.

[0037] Among them, the screw jack 33 is existing technology, and its specific structure will not be described in detail here.

[0038] Optionally, the lifting drive 32 may include, but is not limited to, a servo motor or a pneumatic motor, which is not limited here.

[0039] Combination Figure 2 and Figure 3 As shown, in some optional embodiments, the lifting device 3 further includes a first synchronous gear 34, a second synchronous gear 35, and a synchronous belt 36. The first synchronous gear 34 is connected to the output end of the lifting drive 32, the second synchronous gear 35 is connected to the worm gear of the screw jack 33, and the synchronous belt 36 meshes with the first synchronous gear 34 and the second synchronous gear 35. This transmission structure effectively enhances the stability and reliability of power transmission between the lifting drive 32 and the screw jack 33, making the vertical movement of the screw of the screw jack 33 smoother and more precise.

[0040] Continue as Figure 2 As shown, in some optional embodiments, the mounting assembly 25 includes a base plate 251, a mounting plate 252, a guide sleeve 253, and a guide post 254. The mounting plate 252 and the base plate 251 are arranged vertically, with one of them having a guide sleeve 253 and the other having a guide post 254. The guide sleeve 253 and the guide post 254 are slidably engaged vertically. The grinding drive component 211 is mounted on the mounting plate 252. The base plate 251 is fixedly connected to the ground or an external fixed structure such as a frame. The sliding engagement of the guide sleeve 253 and the guide post 254 provides guidance for the lifting and lowering of the grinding drive component 211, which helps to further improve its movement stability and lifting efficiency.

[0041] In some optional embodiments, the lifting device 3 further includes a slide rail 37 and a slider 38 that slide vertically together. One of the lifting frame 1 and the mounting base 31 is provided with the slide rail 37, and the other with the slider 38. The cooperation of the slide rail 37 and the slider 38 provides precise guidance for the relative movement of the lifting frame 1 and the mounting base 31, effectively limiting the instability such as swaying and deviation that may occur during the lifting process. This improves the stability and accuracy of the lifting process of the belt sander grinding device 2, ensuring that the grinding device 2 can smoothly lift and lower along a fixed vertical trajectory. This allows the belt sander to more accurately adjust the grinding height when dealing with workpieces of different thicknesses and shapes, avoiding the impact of positional deviations during the lifting process on the grinding effect, and thus improving processing accuracy.

[0042] like Figure 4 As shown, in some optional embodiments, the grinding device 2 further includes a first support 26, a second support 27, and a tensioning drive 28. The first support 26 is connected to the lifting frame 1 and is used to mount the tensioning drive 28. The second support 27 is disposed at the output end of the tensioning drive 28 and is used to mount the passive roller 23. The tensioning drive 28 is used to drive the passive roller 23 to move closer to or further away from the active roller 22 to adjust the tension of the sanding belt 24. When the sanding belt 24 becomes loose after long-term use, or when the grinding intensity needs to be adjusted for workpieces of different hardness and materials, the tensioning drive 28 can adjust the tension in a timely manner, effectively preventing slippage and deviation of the sanding belt 24 during operation, ensuring stable operation of the sanding belt 24, thereby ensuring the continuity and stability of the grinding process and significantly improving processing quality and precision.

[0043] Optionally, the tensioning drive 28 may include, but is not limited to, a pneumatic cylinder or a hydraulic cylinder, which is not limited here.

[0044] In some optional embodiments, the belt sander further includes a correction mechanism 5, which includes a correction drive 51, a correction wheel 52, and a correction shaft 53. The correction shaft 53 is connected to one end of the second support 27. The correction mechanism 5 is disposed on the first support 26. The correction wheel 52 is disposed at the output end of the correction drive 51, and the correction wheel 52 has a correction groove 521 circumferentially formed. The correction shaft 53 is engaged with the correction groove 521. The correction drive 51 can drive the passive roller 23 to swing through the correction wheel 52 and the correction shaft 53 to correct the position of the sanding belt 24 and prevent the sanding belt 24 from deviating.

[0045] The correction drive component 51 includes a double cylinder, which has the advantages of high response speed and precise rotation control, and can quickly adjust the output direction according to the real-time offset state of the sanding belt 24. For example, when the sanding belt 24 offsets to one side of the correction axis 53, the double cylinder quickly pushes the passive roller 23 to swing, increasing the angle between the passive roller 23 and the active roller 22, thereby moving the sanding belt 24 to the other side; when the sanding belt 24 offsets to the side away from the correction axis 53, the double cylinder quickly drives the passive roller 23 to swing in the opposite direction, causing the sanding belt 24 to move to one side of the correction axis 53, thereby resetting the sanding belt 24. This bidirectional reversible rotation adjustment can complete the correction action in a very short time, preventing the offset of the sanding belt 24 from continuing to increase.

[0046] Meanwhile, the output stroke of the dual cylinders can be precisely controlled, matching the corresponding correction force according to different degrees of deviation. This prevents excessive correction from causing severe shaking of the sanding belt 24, while ensuring that even minor deviations are corrected in time, thus maintaining the straight running trajectory of the sanding belt 24 throughout the grinding process. This design significantly improves the dynamic adaptability of the belt sander to the deviation of the sanding belt 24, effectively reducing problems such as uneven grinding and accelerated wear on the edge of the sanding belt 24 caused by belt deviation. While extending the service life of the sanding belt 24, it further ensures the consistency and stability of the workpiece surface finish, providing a reliable technical guarantee for high-precision grinding operations.

[0047] In some optional embodiments, the correction mechanism 5 further includes a detection component disposed on one side of the sanding belt 24 for detecting whether the sanding belt 24 is deviated. The detection component is electrically connected to the correction drive 51. When the detection component detects that the sanding belt 24 is deviated, the correction drive 51 receives the signal sent by the detection component and can drive the passive roller 23 to swing through the correction shaft 53 so that the sanding belt 24 is reset.

[0048] Specifically, the detection assembly includes a pair of through-beam photoelectric sensors 7, with the edge of the sanding belt 24 located on the detection path of the through-beam photoelectric sensors 7. When the edge of the sanding belt 24 blocks the detection optical path of the through-beam photoelectric sensors 7, the correction drive 51 drives the passive roller 23 to swing, changing the angle between the passive roller 23 and the active roller 22, causing the sanding belt 24 to move to one side, thus achieving the automatic correction function of the sanding belt 24. When the edge of the sanding belt 24 leaves the detection optical path of the through-beam photoelectric sensors 7, the correction drive 51 pushes the correction wheel 52 in the opposite direction, causing the passive roller 23 to deflect in the opposite direction, controlling the sanding belt 24 to move to the other side. During the grinding and polishing process, the above steps are repeated to achieve the real-time dynamic correction function of the sanding belt 24.

[0049] Optionally, the detection components include, but are not limited to, ultrasonic sensors or laser displacement sensors, and are not limited thereto.

[0050] like Figure 1As shown, in some optional embodiments, the grinding device 2 also includes a protective cover 6, which covers the sanding belt 24 and effectively confines the grinding particles, metal shavings or wood chips and other debris that are splashed at high speed during the grinding process inside the protective cover 6, preventing them from splashing onto the operator's body or the surrounding area of ​​the equipment, significantly reducing the safety risk of the operator being scratched or burned, and improving the safety of workshop production.

[0051] This embodiment also provides a surface treatment device, including a transport device and a belt sander of any of the above embodiments. The transport device is disposed below the sander belt 24 and is used to transport workpieces. When the transport device drives the workpiece below the sander belt 24, the sander belt 24 can grind the workpiece. By adjusting the distance between the sander belt 24 and the transport device, it is equivalent to adjusting the distance between the sander belt 24 and the processing platform. It can quickly and accurately adapt to workpieces of different thicknesses or shapes, meet diverse processing needs, improve surface treatment effect, increase production efficiency, and improve the versatility and practicality of the belt sander.

[0052] Optionally, the transport device may include, but is not limited to, belt conveyors or roller conveyors, the specific structure of which is existing technology and will not be described in detail here.

[0053] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A belt sander, characterized in that, include: Lifting frame (1); The grinding device (2) includes a drive mechanism (21), an active roller (22), a passive roller (23), and a sanding belt (24). The active roller (22) and the passive roller (23) are spaced apart, parallel, and rotatably connected to the lifting frame (1) for tensioning the sanding belt (24). The drive mechanism (21) is connected to the lifting frame (1), and its output end is connected to the active roller (22) for driving the active roller (22) to rotate. The lifting device (3) is connected to the lifting frame (1) via a transmission connection and is used to drive the grinding device (2) to move in the vertical direction.

2. The belt sander according to claim 1, characterized in that, The drive mechanism (21) includes a grinding drive (211), a first transmission wheel (212), a second transmission wheel (213), and a transmission belt (214). One end of the shaft of the drive roller (22) passes through the lifting frame (1) and is connected to the second transmission wheel (213). The output end of the grinding drive (211) is connected to the first transmission wheel (212) to drive the first transmission wheel (212) to rotate. The first transmission wheel (212) and the second transmission wheel (213) together tension the transmission belt (214).

3. The belt sander according to claim 2, characterized in that, The lifting frame (1) is connected to the connecting frame (4). The grinding device (2) also includes an installation component (25) for installing the grinding drive component (211). The lifting device (3) includes a mounting base (31), a lifting drive component (32), and a screw jack (33). The lifting drive component (32) and the screw jack (33) are both connected to the mounting base (31). One end of the screw of the screw jack (33) is connected to the installation component (25), and the other end is connected to the connecting frame (4). The output end of the lifting drive component (32) is connected to the worm gear transmission of the screw jack (33) for driving the screw of the screw jack (33) to move in the vertical direction.

4. The belt sander according to claim 3, characterized in that, The lifting device (3) further includes a first synchronous gear (34), a second synchronous gear (35), and a synchronous belt (36). The first synchronous gear (34) is connected to the output end of the lifting drive (32), the second synchronous gear (35) is connected to the worm gear of the screw jack (33), and the synchronous belt (36) meshes with the first synchronous gear (34) and the second synchronous gear (35).

5. The belt sander according to claim 3, characterized in that, The mounting assembly (25) includes a base plate (251), a mounting plate (252), a guide sleeve (253), and a guide post (254). The mounting plate (252) and the base plate (251) are arranged in a vertical direction, and one of them is provided with the guide sleeve (253) and the other is provided with the guide post (254). The guide sleeve (253) and the guide post (254) are slidably engaged in a vertical direction. The grinding drive (211) is mounted on the mounting plate (252).

6. The belt sander according to claim 3, characterized in that, The lifting device (3) further includes a slide rail (37) and a slider (38) that slide together in the vertical direction. One of the lifting frame (1) and the mounting base (31) is provided with the slide rail (37), and the other is provided with the slider (38).

7. The belt sander according to claim 1, characterized in that, The grinding device (2) further includes a first support (26), a second support (27), and a tensioning drive (28). The first support (26) is connected to the lifting frame (1) and is used to install the tensioning drive (28). The second support (27) is disposed at the output end of the tensioning drive (28) and is used to install the passive roller (23). The tensioning drive (28) is used to drive the passive roller (23) to move closer to or further away from the active roller (22).

8. The belt sander according to claim 7, characterized in that, The belt sander also includes a correction mechanism (5), which includes a correction drive (51), a correction wheel (52), and a correction shaft (53). The correction shaft (53) is connected to one end of the second support (27). The correction mechanism (5) is mounted on the first support (26). The correction wheel (52) is mounted on the output end of the correction drive (51), and the correction wheel (52) has a correction groove (521) circumferentially formed. The correction shaft (53) is engaged with the correction groove (521). The correction drive (51) can drive the passive roller (23) to swing through the correction wheel (52) and the correction shaft (53).

9. The belt sander according to any one of claims 1 to 8, characterized in that, The grinding device (2) also includes a protective cover (6), which is placed over the sanding belt (24).

10. A surface treatment apparatus, characterized in that, The device includes a transport device and a belt sander as described in any one of claims 1 to 9, wherein the transport device is disposed below the sanding belt (24) for transporting workpieces, and the sanding belt (24) is capable of grinding the workpieces continuously running on the transport device when the workpieces pass under the sanding belt (24).

Images