Panel sander

Abstract

The utility model relates to polishing equipment technical field discloses a panel polisher, including transmission unit, polishing unit and cleaning unit, the belt transmission mechanism of transmission unit, first transmission roll respectively with the bottom surface, top surface of panel contact, and all are to first preset direction transmission panel, and the lifting drive mechanism of polishing unit is used for driving at least one group of polishing head assembly elevates and lowers, and the second transmission roll of cleaning unit, third transmission roll, upper brush roll, lower brush roll all are by second rotation drive mechanism synchronous drive. The panel polisher of the utility model is high in polishing accuracy, and 2 drive structure is simple, and the cost is low, is applicable to small -size panel processing.

Description

Technical Field

[0001] This utility model relates to the field of polishing equipment technology, and in particular to a panel polishing machine. Background Technology

[0002] During the processing of sheet materials, surface grinding and polishing are often required. Compared to large-size panels, small-size panels generally require higher processing precision. Most existing panel grinding mechanisms are suitable for processing large-size panels and cannot be used for grinding small-size panels with high precision requirements. Furthermore, existing grinding machines used for small-size panels have complex drive structures and high costs.

[0003] Therefore, it is necessary to develop a panel grinding machine with a simple drive structure and low cost for high-precision small-sized panel grinding. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a panel grinding machine with high grinding precision, simple drive structure, low cost, and suitable for processing small-sized panels.

[0005] To solve the above-mentioned technical problems, this utility model provides a panel polishing machine, including a transmission unit, a polishing unit, and a cleaning unit.

[0006] The transmission unit includes a belt transmission mechanism and a first transmission roller. The belt transmission mechanism and the first transmission roller are in contact with the bottom surface and top surface of the panel, respectively, and both transmit the panel in a first preset direction.

[0007] The grinding unit includes a lifting drive mechanism and a grinding head assembly. The grinding head assembly is located between two adjacent first transmission rollers and includes a grinding head unit, a first rotary drive mechanism, and a swing drive mechanism. The first rotary drive mechanism is used to drive multiple grinding head units to rotate synchronously. The swing drive mechanism is used to drive the first rotary drive mechanism and the grinding head units to swing back and forth along a second preset direction. The lifting drive mechanism is used to drive at least one set of grinding head assemblies to lift and lower.

[0008] The cleaning unit is located at at least one of the input and output ends of the belt conveyor mechanism. The cleaning unit includes a second conveyor roller, a third conveyor roller, an upper brush roller, a lower brush roller, and a spray pipe. The second conveyor roller is located above the third conveyor roller, the upper brush roller is located above the lower brush roller, the upper brush roller is located between two adjacent second conveyor rollers, the lower brush roller is located between two adjacent third conveyor rollers, and the nozzle of the spray pipe is located above the upper brush roller.

[0009] The first transmission roller, the belt transmission mechanism, the second transmission roller, the third transmission roller, the upper brush roller, and the lower brush roller are all synchronously driven by the second rotary drive mechanism.

[0010] As an improvement to the above solution, the grinding head units are arranged in an array on the mounting bracket, the first rotary drive mechanism is fixed to the mounting bracket, and each grinding head unit is wound around the first transmission belt or the first transmission chain. The first rotary drive mechanism is used to drive each grinding head unit to rotate synchronously.

[0011] The mounting bracket is connected to the sliding seat, the swing drive mechanism is fixed to the frame, and the swing drive mechanism is connected to the sliding seat to drive the sliding seat to reciprocate in a second preset direction.

[0012] As an improvement to the above solution, the lifting drive mechanism includes a lifting platform, a lifting seat, and a first reduction drive motor. The lifting seat is arranged circumferentially along the lifting platform. The lifting seat is provided with a seat body and a transmission assembly. The seat body and the first reduction drive motor are both fixed to the frame. The transmission assembly is movably connected to the seat body. The two ends of the transmission assembly extend to the top and bottom of the seat body, respectively. The bottom of the transmission assembly is movably connected to the lifting platform. The first reduction drive motor is connected to the top of each transmission assembly in sequence through a second transmission belt or a second transmission chain to synchronously drive each transmission assembly to rotate and lift relative to the seat body.

[0013] As an improvement to the above solution, the belt transmission mechanism includes a driving pulley, a driven pulley, and a transmission belt, with a support plate provided between the driving pulley and the driven pulley.

[0014] As an improvement to the above solution, the second rotary drive mechanism is fixed to the frame. The frame is provided with a first transition shaft and a second transition shaft. The first transition shaft is coaxially provided with a first gear and a first intermediate rotating wheel. The second transition shaft is coaxially provided with a second gear and a second intermediate rotating wheel set. The first gear meshes with the second gear. One end of the drive pulley is provided with a power input wheel set. One end of the first transmission roller is provided with a first transmission wheel. The drive mechanism, the power input wheel set, and the first intermediate rotating wheel are sequentially connected in a transmission connection. The second intermediate rotating wheel set is connected in a transmission connection with the first transmission wheel.

[0015] As an improvement to the above solution, a second transmission wheel is provided at one end of the second transmission roller, and a lower brush transmission wheel is provided at one end of the lower brush roller. The lower brush transmission wheel is connected to the second intermediate rotating wheel group in a driving connection, and the second transmission wheel is connected to the second intermediate rotating wheel group in a driving connection.

[0016] The other end of the drive pulley is provided with a power output wheel assembly, one end of the third transmission roller is provided with a third transmission wheel, one end of the upper brush roller is provided with an upper brush transmission wheel, the upper brush transmission wheel is connected to the power output wheel assembly, and the third transmission wheel is connected to the power output wheel assembly.

[0017] As an improvement to the above solution, the first transmission roller, the second transmission roller, the third transmission roller, the upper brush roller, and the lower brush roller are all provided with bearing slides at both ends. The frame is provided with a slide groove that is adapted to the bearing slide and extends in the vertical direction. The top of the bearing slide corresponding to the first transmission roller, the second transmission roller, and the upper brush roller is provided with a compression spring, and the top of the compression spring is provided with an adjusting nut that abuts against it.

[0018] As an improvement to the above solution, the mounting bracket includes a sliding plate, a grinding head mounting plate disposed opposite to the sliding plate, and a support member connected to the sliding plate and the grinding head mounting plate. The sliding plate is slidably engaged with the sliding seat. Rollers are provided on both opposite outer side walls of the sliding plate. The bottom of the sliding seat is open. Slide grooves adapted to the rollers are provided on both sides of the opening. The slide grooves extend along a second preset direction. The wheel surface of the roller abuts against the slide groove.

[0019] As an improvement to the above solution, the skateboard includes a main body and an end plate. The main body extends into the opening, and the end plate is located at the end of the main body. The end plate protrudes from the opposite outer walls of the main body.

[0020] The bottom of the end plate is provided with a limiting member, which extends from the top of the end plate toward the sliding seat.

[0021] As an improvement to the above solution, an abrasive supply pipeline is also included, which is used to spray abrasive into the grinding head unit. The transmission unit is provided with a first liquid receiving tank for collecting abrasive and a second liquid receiving tank for collecting cleaning liquid.

[0022] Implementing this utility model has the following beneficial effects:

[0023] This utility model discloses a panel polishing machine. A lifting drive mechanism drives the polishing assembly to descend. Each polishing head unit is driven to rotate synchronously by a first rotation drive mechanism and to reciprocate along a second preset direction by a swing drive mechanism. During panel polishing, the panel is transported in the first preset direction between a belt conveyor mechanism and a first conveyor roller. Compared to a structure supported by rollers, the panel receives more uniform support from the belt conveyor mechanism and can withstand greater polishing pressure without breaking. Furthermore, during polishing, the cleaning water from the cleaning unit adsorbs onto the panel and the conveyor belt, preventing the panel from easily shifting or misaligning on the conveyor belt. Each polishing head unit is driven to rotate synchronously by a first rotation drive mechanism and to reciprocate along a second preset direction by a swing drive mechanism. Driven synchronously by a rotary drive mechanism, the grinding head units in each area rotate in unison. While the panel is being transported in a first preset direction, the grinding head units reciprocate in a second preset direction, resulting in more uniform grinding of the panel. Simultaneously, the first transmission roller, the belt transmission mechanism, the second transmission roller, the third transmission roller, the upper brush roller, and the lower brush roller are all synchronously driven by the second rotary drive mechanism, ensuring good transmission consistency between the top and bottom surfaces of the panel and excellent positioning and transmission effects. This panel grinding machine boasts high grinding precision, a simple drive structure, and low cost, making it particularly suitable for processing small-sized panels. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the first embodiment of the panel polishing machine of this utility model;

[0025] Figure 2 yes Figure 1 A schematic diagram of the panel polishing machine after the outer casing has been removed;

[0026] Figure 3 This is a schematic diagram of the first embodiment of the grinding head assembly;

[0027] Figure 4 yes Figure 3 A schematic diagram of the decomposed structure;

[0028] Figure 5 This is a schematic diagram of the second embodiment of the grinding head assembly;

[0029] Figure 6 yes Figure 2 A schematic diagram of the transmission structure between the transmission unit and the cleaning unit;

[0030] Figure 7 yes Figure 6 A schematic diagram of the structure after the conveyor belt has been removed;

[0031] Figure 8 yes Figure 6 A sectional view taken along the plane of symmetry of the conveyor belt;

[0032] Figure 9 yes Figure 6 Side view;

[0033] Figure 10 This is a schematic diagram of the installation structure of the bearing slide and the frame;

[0034] Figure 11 This is a schematic diagram of an example of a lifting drive mechanism;

[0035] Figure 12 This is a cross-sectional view of the lifting drive mechanism mounted on the frame. Detailed Implementation

[0036] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0037] like Figures 1 to 12 As shown, this utility model discloses a first embodiment of a panel polishing machine, including a transmission unit 1, a polishing unit 2, and a cleaning unit. The transmission unit 1 includes a belt transmission mechanism 11 and a first transmission roller 12. The belt transmission mechanism 11 and the first transmission roller 12 respectively contact the bottom and top surfaces of the panel, and both transmit the panel in a first preset direction. The polishing unit 2 includes a lifting drive mechanism 21 and a polishing head assembly 22. The polishing head assembly 22 is disposed between two adjacent first transmission rollers 12 and includes a polishing head unit 221, a first rotary drive mechanism 222, and a swing drive mechanism 223. The first rotary drive mechanism 222 drives multiple polishing head units 221 to rotate synchronously. The swing drive mechanism 223 drives the first rotary drive mechanism 222 and the polishing head units 221 to swing back and forth in a second preset direction. The lifting drive mechanism 21 drives at least one set of polishing head assemblies 22 to lift and lower. (See also 2 and...) Figure 8 The cleaning unit is located at at least one of the input and output ends of the belt conveyor mechanism. The cleaning unit includes a second transmission roller 31, a third transmission roller 32, an upper brush roller 33, a lower brush roller 34, and a spray pipe 35. The second transmission roller 31 is located above the third transmission roller 32, the upper brush roller 33 is located above the lower brush roller 34, the upper brush roller 33 is located between two adjacent second transmission rollers 31, the lower brush roller 34 is located between two adjacent third transmission rollers 32, and the nozzle of the spray pipe 35 is located above the upper brush roller 33. The first transmission roller 12, the belt conveyor mechanism 11, the second transmission roller 31, the third transmission roller 32, the upper brush roller 33, and the lower brush roller 34 are all synchronously driven by the second rotary drive mechanism 4.

[0038] In this embodiment, the lifting drive mechanism 21 drives the grinding assembly to descend. Each grinding head unit 221 is driven to rotate synchronously by the first rotation drive mechanism 222 and to swing back and forth in a second preset direction by the swing drive mechanism 223. During the grinding of the panel, the panel is transported in the first preset direction between the belt transmission mechanism 11 and the first transmission roller 12. Compared with the structure supported by rollers, the panel is supported by the belt transmission mechanism 11 more evenly and can withstand greater grinding pressure without breaking. On the other hand, the cleaning water from the cleaning unit during the grinding process has an adsorption effect on the panel and the transmission belt, making it less likely for the panel to move or become misaligned on the transmission belt. Each grinding head unit 221 is driven by the first rotation drive mechanism 222 to rotate synchronously and swing back and forth in a second preset direction by the first rotation drive mechanism 223. Driven synchronously by the second rotation drive mechanism 4, the grinding head units 221 in each region rotate in unison. While the panel is being transported in the first preset direction, the grinding head units 221 reciprocate in the second preset direction, making the panel grinding more uniform. At the same time, the first transmission roller 12, the belt transmission mechanism 11, the second transmission roller 31, the third transmission roller 32, the upper brush roller 33, and the lower brush roller 34 are all synchronously driven by the second rotation drive mechanism 4. The transmission pace of the top and bottom surfaces of the panel is well consistent, and the positioning and transmission effect is good. This panel grinding machine has high grinding precision, simple drive structure, and low cost, and is particularly suitable for processing small-sized panels.

[0039] The belt transmission mechanism 11 described in this embodiment specifically includes a driving pulley 111, a driven pulley 112, and a transmission belt 113. A support plate 114 is provided between the driving pulley 111 and the driven pulley 112. The support plate 114 between the driving pulley 111 and the driven pulley 112 provides better support for the panel, resulting in a more uniform support force on the panel and enabling it to withstand greater grinding pressure without breaking.

[0040] Preferably, the support plate 114 is tangent to the top of the drive pulley 111 and the driven pulley 112, which can prevent the transmission belt 113 from deforming due to the pressure of the panel, and thus the panel is supported more evenly.

[0041] In this embodiment, the first transmission roller 12 and the transmission belt 113 form a transmission channel for panel polishing. A preset distance is provided between two adjacent first transmission rollers 12 so that the grinding head assembly 22 of the panel polishing machine can extend between the two adjacent first transmission rollers 12 to polish the panel surface.

[0042] In this embodiment, the frame 10 has a box-type outer shell structure, with a panel inlet and a panel outlet for the panel to enter and exit. The cleaning unit can be located at the input end of the conveyor belt 113 to clean the panel surface before polishing; or the cleaning unit can be located at the output end of the conveyor belt 113 to clean the panel surface after polishing; or cleaning units can be located at both the input and output ends of the conveyor belt 113. In this embodiment, a pre-cleaning unit A is preferably located at the input end of the conveyor belt 113, and a re-cleaning unit B is located at the output end of the conveyor belt 113, i.e., the pre-cleaning unit A is opposite to the panel inlet, and the re-cleaning unit B is opposite to the panel outlet.

[0043] In this embodiment, both the pre-cleaning unit A and the re-cleaning unit B include the aforementioned second transmission roller 31, third transmission roller 32, upper brush roller 33, and lower brush roller 34. Since the surface of the panel after polishing generally contains more dust and impurities, this embodiment sets the number of upper brush rollers 33 and lower brush rollers 34 in the re-cleaning unit B to be more than the number of upper brush rollers 33 and lower brush rollers 34 in the pre-cleaning unit A.

[0044] A transmission channel for panel cleaning is formed between the second transmission roller 31 and the third transmission roller 32, and between the upper brush roller 33 and the lower brush roller 34. The second transmission roller 31 and the third transmission roller 32 rotate in opposite directions, as do the upper brush roller 33 and the lower brush roller 34. Specifically, the upper brush roller 33 rotates in the opposite direction to the second transmission roller 31, and the lower brush roller 34 rotates in the opposite direction to the third transmission roller 32; that is, the upper brush roller 33 rotates in the same direction as the third transmission roller 32, and the lower brush roller 34 rotates in the same direction as the second transmission roller 31.

[0045] See Figure 10During panel transport, the height of each transport roller located above the panel in this embodiment can be adaptively adjusted to press and transport the panel. Specifically, the first transport roller 12, the second transport roller 31, the third transport roller 32, the upper brush roller 33, and the lower brush roller 34 are all provided with bearing slides a at both ends. The frame 10 is provided with a sliding groove that is adapted to the bearing slides a and extends in the vertical direction. The bearing slides a corresponding to the first transport roller 12, the second transport roller 31, and the upper brush roller 33 are provided with compression springs b at the top, and the top of the compression springs b is provided with adjusting nuts c that abut against them. The distances between the first transmission roller 12 and the transmission belt 113, the distances between the second transmission roller 31 and the third transmission roller 32, and the distances between the upper brush roller 33 and the lower brush roller 34 can all be adaptively adjusted according to the panel thickness. The compression spring b is fitted onto an adjusting rod, and an adjusting nut c is provided on the adjusting rod. The adjusting nut c abuts against the top of the compression spring b. By changing the position of the adjusting nut c on the adjusting rod, the pressure of the compression spring b on the bearing slide a can be adjusted, thereby adjusting the pressure applied to the panel by the first transmission roller 12, the second transmission roller 31, or the upper brush roller 33, suitable for polishing and cleaning panels of different thicknesses. Pads can be provided below the first transmission roller 12, the second transmission roller 31, and the upper brush roller 33 as needed to increase the range of panel thicknesses that can be accommodated.

[0046] In this embodiment, a second liquid receiving tank 5 is provided below the belt conveyor mechanism 11 for collecting cleaning liquid. The cleaning liquid in the second liquid receiving tank 5 is transported again to the spray pipe 35 by the second circulation pump and sprayed onto the brush roller to achieve panel cleaning. Preferably, in this embodiment, the first conveyor roller 12, the belt conveyor mechanism 11, the second conveyor roller 31, the third conveyor roller 32, the upper brush roller 33, and the lower brush roller 34 are all synchronously driven by the second rotary drive mechanism 4. That is, the rotation of the drive pulley 111, the first conveyor roller 12, the second conveyor roller 31, the third conveyor roller 32, the upper brush roller 33, and the lower brush roller 34 is synchronized, avoiding asynchronous transmission of the top and bottom surfaces of the panel, which could lead to scratches or even breakage of the panel surface.

[0047] In this embodiment, the second rotary drive mechanism 4 can be a second reduction drive motor, which is fixed to the frame 10. To achieve synchronous transmission between the second rotary drive mechanism 4 and the drive pulley 111 of the first transmission roller 12 and the belt transmission mechanism 11, this embodiment provides a first transition shaft 61 and a second transition shaft 62 on the frame 10. The first transition shaft 61 and the second transition shaft 62 are rotatably mounted on the frame 10 via bearings. The first transition shaft 61 has a first gear 611 and a first intermediate pulley coaxially mounted on it, and the second transition shaft 62 has a second gear 621 and a second intermediate pulley set coaxially mounted on it. The first gear 611 meshes with the second gear 621. One end of the drive pulley 111 has a power input pulley set e, and one end of the first transmission roller 12 has a first transmission pulley. The second rotary drive mechanism 4, the power input pulley set e, and the first intermediate pulley are sequentially connected in a transmission manner, and the second intermediate pulley set is connected in a transmission manner to the first transmission pulley. The second reduction drive motor has a power output sprocket on its power output shaft. This power output sprocket is connected to the sprocket on the power input pulley set e via a transmission chain, thereby enabling the operation of the drive pulley 111 and its transmission belt 113. Because the first gear 611 on the first transition shaft 61 meshes with the second gear 621 on the second transition shaft 62, the rotation directions of the first intermediate pulley on the first transition shaft 61 and the second intermediate pulley set on the second transition shaft 62 are opposite. In this embodiment, at least two sprockets are coaxially arranged on the power input wheel set e. Another sprocket on the power input wheel set e is connected to the first intermediate wheel on the first transition shaft 61 via a transmission chain. Power is transmitted in the opposite direction through the first gear 611 and the second gear 621. The first transmission wheel, which is connected to the second intermediate wheel set on the second transition shaft 62 via a transmission chain, drives the first transmission roller 12 to rotate in the opposite direction to the drive belt pulley 111. Thus, the transmission belt 113 and the first transmission roller 12 achieve co-directional transmission of the panel when they are in contact with the bottom and top surfaces of the panel, respectively.

[0048] In this embodiment, the second intermediate rotating wheel group is provided with at least three coaxially arranged sprockets. Each sprocket on the second intermediate rotating wheel group is used to drive at least one of the first transmission roller 12, the second transmission roller 31, and the lower brush roller 34 to rotate. Specifically, one end of the second transmission roller 31 is provided with a second drive wheel, and one end of the lower brush roller 34 is provided with a lower brush drive wheel. In this embodiment, the first drive wheel, the second drive wheel, and the lower brush drive wheel are all arranged on the same side of the frame 10. The lower brush drive wheel is driven by the second intermediate rotating wheel group, and the second drive wheel is driven by the second intermediate rotating wheel group.

[0049] One end of the drive pulley 111 is provided with a power input pulley set e, and the other end is provided with a power output pulley set f. Multiple sprockets are coaxially arranged on the power output pulley set f. The power output pulley set f is used to drive the third transmission roller 32 and the upper brush roller 33 to rotate. One end of the third transmission roller 32 is provided with a third drive wheel, and one end of the upper brush roller 33 is provided with an upper brush drive wheel. In this embodiment, the third drive wheel and the upper brush drive wheel are both located on the same side of the frame 10, and the upper brush drive wheel is drivenly connected to the power output pulley set f, and the third drive wheel is drivenly connected to the power output pulley set f.

[0050] Preferably, in this embodiment, the active pulley 111 is positioned close to the output end of the transmission belt 113, that is, the upper brush roller 33 and the lower brush roller 34 are provided with a larger number of re-cleaning units B positioned close to the active pulley 111, and the upper brush roller 33 and the lower brush roller 34 are provided with a smaller number of pre-cleaning units A positioned close to the driven pulley 112.

[0051] To reduce the use of long chains and improve the reliability of synchronous transmission, in this embodiment, the lower brush roller 34 of the pre-cleaning unit A is connected to one of the second transmission wheels via a transmission chain. All the second transmission wheels of the pre-cleaning unit A are connected via transmission chains. The second transmission wheel adjacent to the first transmission wheel is connected to the first transmission wheel via a transmission chain, and a first tensioning wheel is provided between the second transmission wheel and the first transmission wheel. Furthermore, in this embodiment, the upper brush transmission wheel of the pre-cleaning unit A is connected to one of the third transmission wheels via a transmission chain. All the third transmission wheels of the pre-cleaning unit A are connected via transmission chains. The third transmission wheel closest to the power output wheel set f is connected to the power output wheel set f via a transmission chain, and a second tensioning wheel is provided between the power output wheel set f and the third transmission wheel located at the input end of the transmission belt 113.

[0052] In this embodiment, the grinding head units 221 are arranged in an array on the mounting bracket. The first rotary drive mechanism 222 is fixed to the mounting bracket. Each grinding head unit 221 is wound around the first transmission belt or the first transmission chain. The first rotary drive mechanism 222 is used to drive each grinding head unit 221 to rotate synchronously. The mounting bracket is connected to the sliding seat. The swing drive mechanism 223 is fixed to the frame 10. The swing drive mechanism 223 is connected to the sliding seat to drive the sliding seat to slide back and forth in a second preset direction, that is, in a direction perpendicular to the transmission direction of the panel.

[0053] The grinding head units 221 are arranged in an array on the mounting bracket 225. The first rotary drive mechanism 222 is fixed to the mounting bracket 225. Each grinding head unit 221 is wound around the first transmission belt 224 or the first transmission chain. The first rotary drive mechanism 222 synchronously drives each grinding head unit 221 to rotate. The grinding head units 221 of the grinding unit 2 are evenly distributed and move in the same rhythm, resulting in good grinding uniformity and making it suitable for high-precision processing of small-sized panels.

[0054] Specifically, the mounting bracket 225 includes a sliding plate, a grinding head mounting plate disposed below the sliding plate, and a support member connected to the sliding plate and the grinding head mounting plate. In this embodiment, the support member includes a support column and a connecting plate. The first rotary drive mechanism 222 and the first transmission belt 224 are both disposed within the driving space formed between the sliding plate and the grinding head mounting plate. The grinding head unit 221 is rotatably mounted on the grinding head mounting plate and extends downwards from the driving space to grind the panel below.

[0055] This embodiment also includes an abrasive supply pipeline 7, which is used to spray abrasive into the grinding head unit 221. A first liquid receiving tank 8 for collecting abrasive is provided below the transmission unit 1. The abrasive supply pipeline 7 transports the abrasive in the first liquid receiving tank 8 through a first circulation pump and sprays it to the work station where the grinding head unit 221 is located, so as to make the grinding of the panel surface more uniform and reduce the thermal deformation and wear of the grinding head unit 221.

[0056] The first rotary drive mechanism 222 in this embodiment includes a second drive motor, a driving pulley, and a driven pulley. The second drive motor is fixed to the slide plate. The driving pulley is located at the power output end of the second drive motor. The driven pulley is coaxially connected to one of the grinding head units 221 and is connected to the driving pulley via a transmission belt. Alternatively, the first rotary drive mechanism 222 can be a geared drive motor, with its power output end connected to one of the grinding head units 221. In this embodiment, the first rotary drive mechanism 222 drives one of the grinding head units 221 to rotate the other grinding head units 221.

[0057] In this embodiment, multiple grinding head units 221 are arranged in a second preset direction. The first transmission belt 224 is arranged in an S-shape in the second preset direction to wrap around the grinding head units 221 arranged in the second preset direction. The rotation directions of two adjacent grinding head units 221 in the second preset direction are opposite, which helps to improve the grinding uniformity.

[0058] In this embodiment, the grinding head unit 221 is arranged in two rows in a first preset direction perpendicular to the second preset direction. The first transmission belt 224 is sleeved on the two rows of grinding head units 221, and the first transmission belt 224 is arranged in an S-shape in the second preset direction. While improving the grinding uniformity, the winding path of the first transmission belt 224 is simple, the contact between the first transmission belt 224 and the grinding head unit 221 is more uniform, and the entire first transmission belt 224 is easier to maintain a uniform tension, ensuring the reliability of synchronous transmission.

[0059] The mounting bracket 225 is connected to the slide block 226, specifically, the sliding plate and the slide block 226 are slidably engaged in a second preset direction, and the swing drive mechanism 223 is used to drive the slide block 226 to reciprocate in the second preset direction. Because the sliding plate and the slide block 226 are slidably engaged in the second preset direction, when the slide block 226 reciprocates in the second preset direction, the sliding plate will swing accordingly, and the grinding head unit 221 mounted on the mounting bracket 225 will swing accordingly in the second preset direction, further improving the uniformity of grinding.

[0060] The swing drive mechanism 223 specifically includes a first drive motor, an eccentric block, and a rocker arm. The first drive motor is connected to the frame 10. A guide rail slider assembly is provided between the frame 10 and the slide block 226. The guide rail slider assembly extends along a second preset direction. The eccentric block is located at the drive end of the first drive motor. The two ends of the rocker arm are rotatably connected to the eccentric block and the slide block 226, respectively. In this embodiment, the guide rail slider assembly includes a slider on the frame 10 and a guide rail on the top of the slide block 226. The guide rail extends along the second preset direction, and the slider slides in cooperation with the guide rail. When the eccentric block on the first drive motor drives the rocker arm to swing, the slide block 226 slides back and forth slightly relative to the frame 10 along the second preset direction.

[0061] The grinding head assembly in this embodiment is also provided with a grinding head cover plate 227 and a guide rail cover 228. The grinding head cover plate 227 is connected to the slide block 226 to prevent external dust and other impurities from contaminating the first rotary drive mechanism 222. The guide rail cover 228 is connected to the frame 10, and the guide rail slider assembly is surrounded by the guide rail cover 228 to prevent impurities from entering the guide rail slider assembly and the swing drive mechanism 223, and to prevent drive jamming due to impurity intrusion.

[0062] In this embodiment, rollers g are provided on both opposite outer side walls of the slide plate. The bottom opening of the slide block 226 is provided, and grooves adapted to the rollers g are provided on both sides of the opening. The grooves extend along a second preset direction, and the wheel surface of the rollers g abuts against the grooves. When the slide block 226 slides back and forth in the second preset direction, the rollers g on the outer side walls of the slide plate roll on the grooves, making the slide plate move more smoothly relative to the slide block 226. The rollers g on the slide plate are housed in the grooves of the slide block 226, and the grinding head cover plate 227 is connected to the slide block 226 to help prevent impurities from entering and affecting the smooth operation of the rollers g relative to the slide block 226.

[0063] The skateboard specifically includes a main body and end plates. The main body extends into the opening, and the rollers g are disposed on the two opposite outer side walls of the main body. The end plates are disposed at the ends of the main body and protrude from the opposite outer side walls of the main body to prevent the skateboard from falling off the end of the slide block 226.

[0064] Furthermore, the bottom of the end plate is folded downwards, and a limiting member h is provided at the bottom of the end plate. The limiting member h extends from the top surface of the end plate towards the slide block 226 to limit the vertical movement of the slide plate. The length of the limiting member h extending towards the top surface of the end plate is adjustable to facilitate the assembly of the slide plate and the slide block 226. At the same time, the top surface of the bottom wall of the slide groove makes rolling contact with the roller g, and the bottom surface of the bottom wall of the slide groove makes close or even sliding contact with the locking member, preventing the slide plate from jumping relative to the slide block 226. This makes the grinding head unit 221 grind the panel more smoothly, which helps to improve the grinding quality of small-sized panels.

[0065] like Figure 11 and Figure 12 As shown, the lifting drive mechanism 21 includes a lifting platform 211, a lifting seat 212, and a first reduction drive motor 213. The lifting seat 212 is arranged circumferentially along the lifting platform 211. The lifting seat 212 is provided with a seat body i and a transmission assembly. The seat body i and the first reduction drive motor 213 are both fixed to the frame 10. The transmission assembly is movably connected to the seat body i. The two ends of the transmission assembly extend to the top and bottom of the seat body i, respectively. The bottom of the transmission assembly is movably connected to the lifting platform 211. The first reduction drive motor 213 is connected to the top of each transmission assembly through the same transmission belt or transmission chain to synchronously drive each transmission assembly to rotate and lift relative to the seat body i.

[0066] In this embodiment, lifting seats 212 are arranged in a circumferential array on the lifting platform 211, so that the seat body i of the lifting seat 212 is fixed to the frame 10, and the transmission components of the lifting seat 212 extend to the top and bottom of the seat body i. The bottom of the transmission components is movably connected to the lifting platform 211, and the top of each transmission component is driven by the same first reduction drive motor 213 through the same second transmission belt or second transmission chain 214, so that the movement of each transmission component is consistent, realizing the smooth lifting and lowering of the lifting platform 211. The grinding head assembly is connected to the lifting platform 211, which can be used for high-precision processing of small-sized panels.

[0067] The grinding head assembly described in this embodiment includes multiple grinding head units arranged horizontally below the lifting platform 211. Since the lifting platform 211 moves smoothly, each grinding head can be kept on the same horizontal grinding surface when it moves up and down, ensuring the uniformity and consistency of small-sized panel processing.

[0068] The transmission assembly includes a lifting shaft j and a driven sprocket k. The two ends of the lifting shaft j extend towards the top and bottom of the base i, respectively. The top of the lifting shaft j is fixed to the driven sprocket k. The bottom of the transmission shaft is provided with a limiting post l that is movably connected to the lifting platform 211. The limiting post l rotates and rises and falls with the transmission shaft, thereby driving the lifting platform 211 to rise and fall. The limiting post l is connected to the lifting shaft j by a positioning pin, and the bottom of the limiting post l has a boss that supports the lifting platform 211. The limiting post l can rotate freely relative to the lifting platform 211.

[0069] The first geared drive motor 213 is preferably a worm geared motor. The housing of the worm geared motor is provided with a bracket. The power output shaft of the worm geared motor is connected to an encoder through a coupling. The encoder is fixed to the bracket. The height of the lifting platform 211 can be precisely controlled by controlling the rotation of the drive sprocket m.

[0070] Regarding the arrangement of the first reduction drive motor 213 and the lifting seat 212, in this embodiment, the lifting seats 212 are preferably arranged in a circumferential array on the lifting platform 211, and the first reduction drive motor 213 is arranged offset from the center of the array of each lifting seat 212. The power output end of the first reduction drive motor 213 is provided with a drive sprocket m, and the axes of the drive sprocket m and each driven sprocket k are vertically arranged. The second transmission chain 214 is wound around the drive sprocket m and the driven sprocket k of each lifting seat 212. At the same time, the drive sprocket m is symmetrically arranged between two driven sprockets k, and the second transmission chain 214, which passes around the drive sprocket m, is sequentially connected to the driven sprocket k away from the drive sprocket m and the driven sprocket k close to the drive sprocket m. Along the winding direction of the second transmission chain 214, the distance between the driving sprocket m and the adjacent driven sprocket k in this embodiment is equal to the distance between two adjacent driven sprockets k. This makes the tension of each segment of the second transmission chain 214 closer, reducing the risk of individual driven sprockets k of the lifting seat 212 becoming loose from the second transmission chain 214, which could lead to the lifting platform 211 becoming unbalanced.

[0071] In this embodiment, a tensioning sprocket for adjusting the tension of the second transmission chain 214 is also provided on the frame 10, and the driven sprocket k passes around the tensioning sprocket. In this embodiment, the tensioning sprocket is connected to a slotted hole, and driving the tensioning sprocket to move within the slotted hole can adjust the tension of the second transmission chain 214.

[0072] The above-disclosed embodiment is merely a preferred embodiment of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A panel polishing machine, characterized in that, Includes a transmission unit, a polishing unit, and a cleaning unit. The transmission unit includes a belt transmission mechanism and a first transmission roller. The belt transmission mechanism and the first transmission roller are in contact with the bottom surface and top surface of the panel, respectively, and both transmit the panel in a first preset direction. The grinding unit includes a lifting drive mechanism and a grinding head assembly. The grinding head assembly is located between two adjacent first transmission rollers and includes a grinding head unit, a first rotary drive mechanism, and a swing drive mechanism. The first rotary drive mechanism is used to drive multiple grinding head units to rotate synchronously. The swing drive mechanism is used to drive the first rotary drive mechanism and the grinding head units to swing back and forth along a second preset direction. The lifting drive mechanism is used to drive at least one set of grinding head assemblies to lift and lower. The cleaning unit is located at at least one of the input and output ends of the belt conveyor mechanism. The cleaning unit includes a second conveyor roller, a third conveyor roller, an upper brush roller, a lower brush roller, and a spray pipe. The second conveyor roller is located above the third conveyor roller, the upper brush roller is located above the lower brush roller, the upper brush roller is located between two adjacent second conveyor rollers, the lower brush roller is located between two adjacent third conveyor rollers, and the nozzle of the spray pipe is located above the upper brush roller. The first transmission roller, the belt transmission mechanism, the second transmission roller, the third transmission roller, the upper brush roller, and the lower brush roller are all synchronously driven by the second rotary drive mechanism.

2. The panel polishing machine as described in claim 1, characterized in that, The grinding head units are arranged in an array on the mounting bracket. The first rotary drive mechanism is fixed to the mounting bracket. Each grinding head unit is wound around the first transmission belt or the first transmission chain. The first rotary drive mechanism is used to drive each grinding head unit to rotate synchronously. The mounting bracket is connected to the sliding seat, the swing drive mechanism is fixed to the frame, and the swing drive mechanism is connected to the sliding seat to drive the sliding seat to reciprocate in a second preset direction.

3. The panel polishing machine as described in claim 1, characterized in that, The lifting drive mechanism includes a lifting platform, a lifting seat, and a first reduction drive motor. The lifting seat is arranged circumferentially along the lifting platform. The lifting seat has a base and a transmission assembly. The base and the first reduction drive motor are fixed to the frame. The transmission assembly is movably connected to the base. The two ends of the transmission assembly extend to the top and bottom of the base, respectively. The bottom of the transmission assembly is movably connected to the lifting platform. The first reduction drive motor is connected to the top of each transmission assembly in sequence through a second transmission belt or a second transmission chain to synchronously drive each transmission assembly to rotate and lift relative to the base.

4. The panel polishing machine as described in claim 1, characterized in that, The belt transmission mechanism includes a driving pulley, a driven pulley, and a transmission belt, with a support plate between the driving pulley and the driven pulley.

5. The panel polishing machine as described in claim 4, characterized in that, The second rotary drive mechanism is fixed to the frame. The frame is provided with a first transition shaft and a second transition shaft. A first gear and a first intermediate rotating wheel are coaxially provided on the first transition shaft. A second gear and a second intermediate rotating wheel set are coaxially provided on the second transition shaft. The first gear meshes with the second gear. One end of the drive pulley is provided with a power input wheel set. One end of the first transmission roller is provided with a first transmission wheel. The drive mechanism, the power input wheel set, and the first intermediate rotating wheel are sequentially connected in a transmission manner. The second intermediate rotating wheel set is connected in a transmission manner to the first transmission wheel.

6. The panel polishing machine as described in claim 5, characterized in that, One end of the second transmission roller is provided with a second drive wheel, and one end of the lower brush roller is provided with a lower brush drive wheel. The lower brush drive wheel is connected to the second intermediate rotating wheel group in a driving connection, and the second drive wheel is connected to the second intermediate rotating wheel group in a driving connection. The other end of the drive pulley is provided with a power output wheel assembly, one end of the third transmission roller is provided with a third transmission wheel, one end of the upper brush roller is provided with an upper brush transmission wheel, the upper brush transmission wheel is connected to the power output wheel assembly, and the third transmission wheel is connected to the power output wheel assembly.

7. The panel polishing machine as described in claim 5, characterized in that, The first transmission roller, the second transmission roller, the third transmission roller, the upper brush roller, and the lower brush roller are all provided with bearing slides at both ends. The frame is provided with a slide groove that is adapted to the bearing slide and extends in the vertical direction. The top of the bearing slide corresponding to the first transmission roller, the second transmission roller, and the upper brush roller is provided with a compression spring, and the top of the compression spring is provided with an adjusting nut that abuts against it.

8. The panel polishing machine as described in claim 2, characterized in that, The mounting bracket includes a sliding plate, a grinding head mounting plate disposed below the sliding plate, and a support member connected to the sliding plate and the grinding head mounting plate. The sliding plate is slidably engaged with the sliding seat. Rollers are provided on both opposite outer side walls of the sliding plate. The bottom of the sliding seat is open, and grooves adapted to the rollers are provided on both sides of the opening. The grooves extend along a second preset direction, and the wheel surface of the roller abuts against the grooves.

9. The panel polishing machine as described in claim 8, characterized in that, The skateboard includes a main body and end plates. The main body extends into the opening, and the end plates are located at the ends of the main body, protruding from the opposite outer walls of the main body. The bottom of the end plate is provided with a limiting member, which extends from the top of the end plate toward the sliding seat.

10. The panel polishing machine as described in claim 1, characterized in that, It also includes an abrasive supply pipeline for spraying abrasive into the grinding head unit. The transmission unit is provided with a first liquid receiving tank for collecting abrasive and a second liquid receiving tank for collecting cleaning liquid below it.

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