Sanding equipment applied to Italian semi-permeable process

By designing automated sanding equipment and using a servo motor-driven eccentric adjustment mechanism and dust collection device, the problems of insufficient precision of traditional sanding machines and low efficiency of manual wire drawing have been solved, realizing efficient Italian semi-transparent processing.

CN223933277UActive Publication Date: 2026-02-24QINGDAO LANGRUI MASCH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520363869.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-04
Publication Date
2026-02-24
Estimated Expiration
2035-03-04

AI Technical Summary

Technical Problem

Traditional sanding machines lack sufficient processing precision in Italian semi-transparent processes, making direct coating impossible, and the wire drawing operation relies on manual labor, resulting in low efficiency.

Method used

Design an automated sanding equipment that includes multiple sanding frames and a wire drawing device. Utilize a servo motor to drive an eccentric adjustment mechanism to automatically adjust the position of the sanding belt, and combine it with a dust collection device to handle wood chips, thereby achieving precise sanding and wire drawing of the board and meeting the requirements of Italian semi-transparent processing.

Benefits of technology

It improves the precision and efficiency of sheet metal processing, realizes automated adjustment, reduces reliance on manual experience, is suitable for coating processes, and meets the requirements of Italian semi-transparent processes.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223933277U_ABST
    Figure CN223933277U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of plate processing equipment, and discloses sanding equipment applied to an Italian semi-permeable process, which comprises a rack, a sanding mechanism, a sanding mechanism, a sanding mechanism, a sanding mechanism and a sanding mechanism, wherein the rack is used for mounting and supporting mechanical parts and is provided with a feed port and a discharge port; the detection device is mounted at a feeding hole of the rack and is used for detecting the thickness of a plate; the conveying device is arranged in the rack and used for conveying plates. The first sanding frame device is arranged at the end, close to the feeding port, in the rack and used for sanding the end faces of the plates to be flat. The second sanding frame device is arranged on the left side of the first sanding frame device and used for sanding the end faces of the plates to be smooth. The first wiredrawing device is arranged on the left side of the second sand frame device and used for cutting the end face of the plate to form texture patterns. The third sanding frame device is arranged on the left side of the first wiredrawing device and used for sanding the end face of the wiredrawn plate to be smooth. The second wiredrawing device is arranged on the left side of the third sand frame device and is used for wiredrawing the wiredrawn plate again; the control panel is used for receiving instructions and outputting the instructions. According to the utility model, full-automatic integrated processing of the plate is realized, so that the plate meets the requirements of the Italian semi-transparent plate.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of sheet metal processing equipment technology, and in particular to a sanding equipment applied to Italian semi-transparent process. Background Technology

[0002] Italian semi-transparent finish is a technique that reveals only the grain, not the paint, restoring the original appearance of the wood veneer. It requires sanding, brushing, and finishing processes on the board. Currently, traditional sanding machines lack the precision required for finishing, making it impossible to apply a finish; brushing is still done manually, resulting in low efficiency. Boards that have undergone sanding and brushing processes cannot directly achieve a finished finish.

[0003] Therefore, improvements are needed. Utility Model Content

[0004] The technical problem solved by this utility model is to address the deficiencies in the prior art by providing a sanding device for Italian semi-transparent processes, thereby solving the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A sanding equipment applied to the Italian semi-transparent process, comprising: a frame for installing and supporting mechanical components, the frame having an inlet and an outlet; a detection device installed at the inlet of the frame for detecting the thickness of the sheet material; a conveying device disposed within the frame for conveying the sheet material; a first sanding frame disposed within the frame near the inlet for sanding the end face of the sheet material; and a second sanding frame. The system comprises: a first sanding frame device located to the left of the first sanding frame device; a second sanding frame device for sanding smooth the end face of the board; a first wire drawing device located to the left of the second sanding frame device for cutting the end face of the board to form a textured pattern; a third sanding frame device located to the left of the first wire drawing device for sanding smooth the end face of the board after wire drawing; a second wire drawing device located to the left of the third sanding frame device for further wire drawing of the board after wire drawing; and a control panel for receiving and outputting instructions.

[0006] Further, the first sanding frame device includes a first support, a first driving roller disposed on the first support, a first driven roller spaced apart from the first driving roller, and a first eccentric adjustment mechanism disposed on the first support; the first eccentric adjustment mechanism includes a first servo motor electrically connected to the control panel, a first transmission component connected to the output end of the first servo motor, a first connecting rod connected to the first transmission component, and a first eccentric shaft disposed at the end of the first driving roller; wherein, the first connecting rod is connected to the first eccentric shaft, the first servo motor drives the first transmission component to rotate the first connecting rod, and the first eccentric shaft drives the first driving roller to move longitudinally to adjust its position.

[0007] Further, the second sanding frame device includes a second support, a second driving roller disposed on the second support, a second driven roller spaced apart from the second driving roller, and a second eccentric adjustment mechanism disposed on the second support; the second eccentric adjustment mechanism includes a second servo motor electrically connected to the control panel, a second transmission component connected to the output end of the second servo motor, a second connecting rod connected to the second transmission component, and a second eccentric shaft disposed at the end of the second driving roller; wherein, the second connecting rod is connected to the second eccentric shaft, the second servo motor drives the second transmission component to rotate the second connecting rod, and the second eccentric shaft drives the second driving roller to move longitudinally to adjust its position.

[0008] Furthermore, the third sanding frame device includes a third support, a third driving roller disposed on the third support, a third driven roller spaced apart from the third driving roller, and a third eccentric adjustment mechanism disposed on the third support; the third eccentric adjustment mechanism includes a third servo motor electrically connected to the control panel, a third transmission component connected to the output end of the third servo motor, a third connecting rod connected to the third transmission component, and a third eccentric shaft disposed at the end of the third driving roller; wherein, the third connecting rod is connected to the third eccentric shaft, the third servo motor drives the third transmission component to rotate the third connecting rod, and the third eccentric shaft drives the third driving roller to move longitudinally to adjust its position.

[0009] Furthermore, it includes a dust collection device, which is located at the discharge port of the frame and is used to suck up wood chips and fibers from the board. The dust collection device includes a dust collection hood for connecting to a negative pressure generating device and a brush roller disposed inside the dust collection hood. The brush roller has brushes on its circumferential surface and is used to clean the end face of the board.

[0010] Furthermore, the first sand frame device includes a first tension adjustment device, which is disposed between the first driving roller and the first driven roller; the first tension adjustment device is connected to the first driven roller; the first tension adjustment device drives and adjusts the movement of the first driven roller.

[0011] Furthermore, the second sand frame device includes a second tension adjustment device, which is disposed between the second driving roller and the second driven roller; the second tension adjustment device is connected to the second driven roller; the second tension adjustment device drives and adjusts the movement of the second driven roller.

[0012] Furthermore, the third sand frame device includes a third tension adjustment device, which is disposed between the third driving roller and the third driven roller; the third tension adjustment device is connected to the third driven roller; the third tension adjustment device drives and adjusts the movement of the third driven roller.

[0013] Furthermore, the first wire drawing device includes a first frame and a first wire drawing roller mounted on the first frame, the first wire drawing roller drawing the end face of the board to form a texture via transmission; the second wire drawing device includes a second frame and a second wire drawing roller mounted on the second frame, the second wire drawing roller drawing the end face of the board to further form a texture via transmission.

[0014] Furthermore, the frame includes a guide roller assembly, which is one or more sets, and is positioned above the conveying device. The guide roller assembly is used to press and guide the sheet metal on the conveying device.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] The system employs a distribution of a first sanding frame device, a second sanding frame device, a first wire drawing device, a third sanding frame device, and a second wire drawing device. The first sanding frame device sands the board, the second sanding frame device smooths the board, improving the smoothness of the board's end face, the first wire drawing device creates texture by drawing and opening holes on the smooth end face, the third sanding frame device sands away burrs and other imperfections on the board's end face, and finally the second wire drawing device further cuts and draws the wood fibers at the textured areas. The processed board can be directly used for coating processes, meeting the requirements of Italian semi-transparent finishes and significantly accelerating production efficiency.

[0017] The first, second, and third sanding frames are respectively equipped with a first eccentric adjustment mechanism, a second eccentric adjustment mechanism, and a third eccentric adjustment mechanism. When different sanding belts are replaced, the height is adjusted through the first, second, and third eccentric adjustment mechanisms after the control panel outputs a signal, thus achieving automated adjustment, saving adjustment time, requiring less experience from employees, and being easier to implement. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the structure of this utility model from another angle.

[0020] Figure 3 This is a schematic diagram of the structure of this utility model.

[0021] Figure 4 This is a schematic diagram of the first sand frame device.

[0022] Figure 5 This is a schematic diagram of the first sand frame device.

[0023] Figure 6 This is a schematic diagram of the second sand frame device.

[0024] Figure 7 This is a schematic diagram of the second sand frame device.

[0025] Figure 8 This is a schematic diagram of the third sand frame device.

[0026] Figure 9 This is a schematic diagram of the third sand frame device.

[0027] Figure 10 This is a schematic diagram of a vacuum cleaner device.

[0028] Figure 11 This is a schematic diagram of the first wire drawing device.

[0029] Figure 12 This is a schematic diagram of the second wire drawing device.

[0030] Reference numerals: 1. Frame; 2. Detection device; 3. Conveying device; 4. First sanding frame device; 5. Second sanding frame device; 6. First wire drawing device; 7. Third sanding frame device; 8. Second wire drawing device; 9. Control panel; 10. First support; 11. First driving roller; 12. First driven roller; 13. First eccentric adjustment mechanism; 14. First servo motor; 15. First transmission component; 16. First connecting rod; 17. First eccentric shaft; 18. Second support; 19. Second driving roller; 20. Second driven roller; 21. Second eccentric adjustment mechanism; 22. Second servo motor; 2 3. Second transmission component; 24. Second connecting rod; 25. Second eccentric shaft; 26. Third support; 27. Third driving roller; 28. Third driven roller; 29. ​​Third eccentric adjustment mechanism; 30. Third servo motor; 31. Third transmission component; 32. Third connecting rod; 33. Third eccentric shaft; 34. Dust collection device; 35. Dust collection hood; 36. Brush roller; 37. First tension adjustment device; 38. Second tension adjustment device; 39. Third tension adjustment device; 40. First frame; 41. First drawing roller; 42. Second frame; 43. First drawing roller; 44. Guide roller group. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings.

[0032] The embodiments described with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, 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, and therefore should not be construed as limiting this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "several" or "more than" means two or more, unless otherwise explicitly specified. In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 application according to the specific circumstances. In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. Moreover, "above," "over," and "on top" of a second feature includes the first feature being 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" of a second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] In view of the technical problems described in the background art, such as Figure 1-3As shown, a sanding device for the Italian semi-transparent process is provided, comprising: a frame 1 for mounting and supporting mechanical components, the frame 1 having an inlet and an outlet; a detection device 2 installed at the inlet of the frame 1 for detecting the thickness of the sheet material; a conveying device 3 disposed within the frame 1 for conveying the sheet material; a first sanding frame 4 disposed within the frame 1 near the inlet for sanding the end face of the sheet material; and a second sanding frame 5 disposed within the first sanding frame. On the left side of device 4, the second sanding frame device 5 is used to sand smooth the end face of the board; the first wire drawing device 6 is located to the left of the second sanding frame device 5 and is used to cut the end face of the board to form a texture pattern; the third sanding frame device 7 is located to the left of the first wire drawing device 6 and is used to sand smooth the end face of the board after wire drawing; the second wire drawing device 8 is located to the left of the third sanding frame device 7 and is used to draw the board again after wire drawing; and the control panel 9 is used to receive and output instructions.

[0034] In the above technical solution, the frame 1 is designed to adapt to the usage requirements; the detection device 2 can use an infrared thickness gauge to measure the thickness of the board; the conveying device 3 can be in the form of a conveyor belt to transport the board; the first sanding device 4 uses sandpaper to sand the end face of the board for the first time to make the end face of the board smooth; the second sanding device 5 is used to sand the end face of the board after sanding with high precision sandpaper to make the end face of the board smooth; the first wire drawing device 6 is used to draw and open holes on the sanded end face of the board to form the board texture; the third sanding device 7 sands the board after the first wire drawing to smooth it, such as removing burrs and debris at the texture position; the second wire drawing device 8 is used to further draw and open holes at the texture position of the first wire drawing to remove burrs and debris.

[0035] In practical use, the board is placed on the conveying device 3 for conveying. After the detection device 2 detects the thickness of the board, the first sanding device 4 performs the first sanding on the board to flatten the end face of the board. The second sanding device 5 performs the second sanding on the board to smooth the end face of the board. The first wire drawing device 6 performs wire drawing and hole opening operations on the board. After passing through the third sanding device 7, the burrs and wood fibers at the wire drawing and hole opening positions are smoothed. Finally, the second wire drawing device 8 further draws the first wire drawing and hole opening positions to remove wood fibers.

[0036] like Figure 4-9As shown, the first sanding frame device 4 includes a first support 10, a first active roller 11 disposed on the first support 10, a first driven roller 12 disposed at a distance from the first active roller 11, and a first eccentric adjustment mechanism 13 disposed on the first support 10; the first eccentric adjustment mechanism 13 includes a first servo motor 14 electrically connected to the control panel 9, a first transmission component 15 connected to the output end of the first servo motor 14, a first connecting rod 16 connected to the first transmission component 15, and a first eccentric shaft 17 disposed at the end of the first active roller 11; wherein, the first connecting rod 16 is connected to the first eccentric shaft 17, the first servo motor 14 drives the first transmission component 15 to rotate the first connecting rod 16, and the first eccentric shaft 17 drives the first active roller 11 to move longitudinally to adjust its position.

[0037] In traditional use, the first sanding frame device 4 requires the replacement of the sanding belt. Due to the difference in sanding belt thickness, after replacing the sanding belt, an experienced worker needs to place the board under the first sanding frame device 4 for adjustment. The adjustment process is troublesome, and the adjustment time is affected by the worker's experience.

[0038] To address this, a novel first sanding frame device 4 is provided. In use, the sanding belt is fitted between the first driving roller 11 and the first driven roller 12. The sanding belt model is input on the control panel 9, and the control panel 9 outputs a signal to the first servo motor 14. The first servo motor 14 drives the first transmission component 15 to extend and retract for transport. The first transmission component 15 drives the first connecting rod 16 to rotate. Since the first connecting rod 16 is connected to the first eccentric shaft 17, and the first eccentric shaft 17 is eccentrically set on the first driving roller 11, the eccentric distance is set to an adjustable height range, thereby realizing automated adjustment operation after changing the sanding belt. This operation method does not rely on the worker's experience, and at the same time, the adjustment time is faster, saving adjustment time and speeding up the production process.

[0039] The second sanding frame device 5 includes a second support 18, a second driving roller 19 disposed on the second support 18, a second driven roller 20 disposed at a distance from the second driving roller 19, and a second eccentric adjustment mechanism 21 disposed on the second support 18; the second eccentric adjustment mechanism 21 includes a second servo motor 22 electrically connected to the control panel 9, a second transmission component 23 connected to the output end of the second servo motor 22, a second connecting rod 24 connected to the second transmission component 23, and a second eccentric shaft 25 disposed at the end of the second driving roller 19; wherein, the second connecting rod 24 is connected to the second eccentric shaft 25, the second servo motor 22 drives the second transmission component 23 to rotate the second connecting rod 24, and the second eccentric shaft 25 drives the second driving roller 19 to move longitudinally to adjust its position.

[0040] The structure and technical principle of the second sanding device 5 are the same as those of the first sanding device 4, and will not be repeated here. The difference is that the second sanding device 5 uses a sanding belt with higher precision to sand the end face of the board. Specifically, after the first sanding device 4 sands the end face of the board flat, the second sanding device 5 sands the end face of the board smooth to obtain the required smoothness.

[0041] The third sanding frame device 7 includes a third support 26, a third driving roller 27 disposed on the third support 26, a third driven roller 28 spaced apart from the third driving roller 27, and a third eccentric adjustment mechanism 29 disposed on the third support 26. The third eccentric adjustment mechanism 29 includes a third servo motor 30 electrically connected to the control panel 9, a third transmission component 31 connected to the output end of the third servo motor 30, a third connecting rod 32 connected to the third transmission component 31, and a third eccentric shaft 33 disposed at the end of the third driving roller 27. The third connecting rod 32 is connected to the third eccentric shaft 33, the third servo motor 30 drives the third transmission component 31 to rotate the third connecting rod 32, and the third eccentric shaft 33 drives the third driving roller 27 to move longitudinally to adjust its position.

[0042] The structure and technical principle of the third sanding device 7 are the same as those of the first sanding device 4, so they will not be described again. The third sanding device 7 uses a sanding belt with higher precision to smooth the burrs generated by the first wire drawing device 6. Specifically, after the first wire drawing device 6 draws the board, burrs are generated at the drawing position, and the third sanding device 7 smooths the end face of the board.

[0043] like Figure 10 As shown, this utility model also includes a dust collection device 34, which is disposed at the discharge port of the frame 1. The dust collection device 34 is used to suck up wood chips and fibers from the board. The dust collection device 34 includes a dust collection hood 35 for connecting to a negative pressure generating device and a brush roller 36 disposed inside the dust collection hood 35. The brush roller 36 is provided with brushes on its circumferential surface and is used to clean the end face of the board.

[0044] Because wood fibers and debris are easily generated during the processing of boards, a dust collection device 34 is installed at the board's discharge port. The dust collection device 34 includes a dust collection hood 35 and a brush roller 36. The dust collection hood 35 can be connected to an external fan or blower to generate negative pressure to suck up wood fibers and debris. The brush roller 36 is used to clean wood fibers and debris from the board surface and the areas where the fibers are drawn. The boards treated by the dust collection device 34 are clean.

[0045] like Figure 4-9As shown, the first sand frame device 4 includes a first tension adjustment device 37, which is disposed between the first driving roller 11 and the first driven roller 12; the first tension adjustment device 37 is connected to the first driven roller 12; the first tension adjustment device 37 drives and adjusts the movement of the first driven roller 12.

[0046] The first tension adjustment device 37 is used for the installation and tension adjustment of the sanding belt. The first tension adjustment device 37 can be a cylinder or a hydraulic cylinder. The first tension device is connected to the first driven roller 12. During the driving process, the first tension device drives the first driven roller 12 to move relative to the first driving roller 11, thereby controlling the tension of the sanding belt or performing replacement operations. It is more convenient to use and easier to replace and adjust.

[0047] The second sanding frame device 5 includes a second tension adjustment device 38, which is disposed between the second driving roller 19 and the second driven roller 20; the second tension adjustment device 38 is connected to the second driven roller 20; the second tension adjustment device 38 drives and adjusts the movement of the second driven roller 20.

[0048] The structure and technical principle of the second tension adjustment device 38 are the same as those of the first tension adjustment device 37, so there is no need to trace back further. Please refer to the first tension adjustment device 37 mentioned above.

[0049] The third sand frame device 7 includes a third tension adjustment device 39, which is disposed between the third driving roller 27 and the third driven roller 28; the third tension adjustment device 39 is connected to the third driven roller 28; the third tension adjustment device 39 drives and adjusts the movement of the third driven roller 28.

[0050] The structure and technical principle of the third tension adjustment device 39 are the same as those of the first tension adjustment device 37, so there is no further elaboration on this; please refer to the first tension adjustment device 37 mentioned above.

[0051] Reference Figure 11-12 As shown, the first wire drawing device 6 includes a first frame 40 and a first wire drawing roller 4341 mounted on the first frame 40. The first wire drawing roller 4341 draws the end face of the board to form a texture via transmission. The second wire drawing device 8 includes a second frame 42 and a second wire drawing roller mounted on the second frame 42. The second wire drawing roller further draws the end face of the board to form a texture via transmission.

[0052] The first wire drawing device 6 is mainly for operations such as wire drawing and hole opening on the board, to create a texture on the board and meet the requirements of Italian semi-transparent process. Specifically, the first wire drawing device 6 includes a first frame 40 and a first wire drawing roller 4341. After the board is sanded smooth by the second sanding frame device 5, a texture is formed on the end face of the board under the action of the first wire drawing roller 4341.

[0053] The second wire drawing device 8 is mainly designed to further cut the wood fibers at the position where the first wire drawing device 6 draws the board and makes holes, thereby improving the smoothness.

[0054] Furthermore, the frame 1 includes a guide roller group 44, which is one or more groups. The guide roller group 44 is disposed above the conveying device 3 and is used to press and guide the sheet metal on the conveying device 3.

[0055] The above does not limit the technical scope of this utility model. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. A sanding device for use in Italian semi-transparent sanding processes, characterized in that, include: A frame for mounting and supporting mechanical components, the frame having an inlet and an outlet; A detection device is installed at the feed inlet of the frame and is used to detect the thickness of the sheet material. A conveying device is disposed within the frame and is used to convey sheet metal. The first sanding frame device is located inside the frame near the feed inlet and is used to sand the end face of the plate flat. A second sanding rack device is located to the left of the first sanding rack device, and the second sanding rack device is used to sand the end face of the plate. A first wire drawing device is disposed to the left of the second sanding device. The first wire drawing device is used to cut the end face of the plate to form a textured pattern. The third sanding rack device is located to the left of the first wire drawing device, and the third sanding rack device is used to sand the end face of the wire-drawn board. The second wire drawing device is located on the left side of the third sanding device, and the second wire drawing device is used to draw the wired board again. The control panel is used to receive and output instructions.

2. The sanding equipment for the Italian semi-transparent process according to claim 1, characterized in that: The first sander device includes a first support, a first driving roller disposed on the first support, a first driven roller disposed at a distance from the first driving roller, and a first eccentric adjustment mechanism disposed on the first support. The first eccentric adjustment mechanism includes a first servo motor electrically connected to the control panel, a first transmission component connected to the output end of the first servo motor, a first connecting rod connected to the first transmission component, and a first eccentric shaft disposed at the end of the first active roller; wherein, the first connecting rod is connected to the first eccentric shaft, the first servo motor drives the first transmission component to rotate the first connecting rod, and the first eccentric shaft drives the first active roller to move longitudinally to adjust its position.

3. The sanding equipment for the Italian semi-transparent process according to claim 2, characterized in that: The second sander assembly includes a second support, a second driving roller mounted on the second support, a second driven roller spaced apart from the second driving roller, and a second eccentric adjustment mechanism mounted on the second support. The second eccentric adjustment mechanism includes a second servo motor electrically connected to the control panel, a second transmission component connected to the output end of the second servo motor, a second connecting rod connected to the second transmission component, and a second eccentric shaft disposed at the end of the second active roller; wherein, the second connecting rod is connected to the second eccentric shaft, the second servo motor drives the second transmission component to rotate the second connecting rod, and the second eccentric shaft drives the second active roller to move longitudinally to adjust its position.

4. The sanding equipment for the Italian semi-transparent process according to claim 3, characterized in that: The third sand frame device includes a third support, a third driving roller disposed on the third support, a third driven roller disposed at a distance from the third driving roller, and a third eccentric adjustment mechanism disposed on the third support. The third eccentric adjustment mechanism includes a third servo motor electrically connected to the control panel, a third transmission component connected to the output end of the third servo motor, a third connecting rod connected to the third transmission component, and a third eccentric shaft disposed at the end of the third active roller; wherein, the third connecting rod is connected to the third eccentric shaft, the third servo motor drives the third transmission component to rotate the third connecting rod, and the third eccentric shaft drives the third active roller to move longitudinally to adjust its position.

5. The sanding equipment for the Italian semi-transparent process according to claim 4, characterized in that: Includes a dust collection device, which is located at the discharge port of the frame and is used to extract wood chips and fibers from the board. The dust collection device includes a dust collection hood for connecting to a negative pressure generating device and a brush roller disposed inside the dust collection hood. The brush roller has brushes on its circumferential surface and is used to clean the end face of the board.

6. The sanding equipment for the Italian semi-transparent process according to claim 5, characterized in that: The first sander assembly includes a first tension adjustment device, which is disposed between the first driving roller and the first driven roller; the first tension adjustment device is connected to the first driven roller; the first tension adjustment device drives and adjusts the movement of the first driven roller.

7. The sanding equipment for the Italian semi-transparent process according to claim 6, characterized in that: The second sander assembly includes a second tension adjustment device, which is disposed between the second driving roller and the second driven roller; the second tension adjustment device is connected to the second driven roller; the second tension adjustment device drives and adjusts the movement of the second driven roller.

8. The sanding equipment for the Italian semi-transparent process according to claim 7, characterized in that: The third sand frame device includes a third tension adjustment device, which is disposed between the third driving roller and the third driven roller; the third tension adjustment device is connected to the third driven roller; the third tension adjustment device drives and adjusts the movement of the third driven roller.

9. The sanding equipment for the Italian semi-transparent process according to claim 8, characterized in that: The first wire drawing device includes a first frame and a first wire drawing roller mounted on the first frame. The first wire drawing roller draws the end face of the board to form a texture via transmission. The second wire drawing device includes a second frame and a second wire drawing roller mounted on the second frame. The second wire drawing roller further draws the end face of the board to form a texture via transmission.

10. The sanding equipment for the Italian semi-transparent process according to claim 9, characterized in that: The frame includes a set of guide rollers, which may be one or more sets. The guide roller sets are positioned above the conveying device and are used to press and guide the sheet metal on the conveying device.