A lifting and positioning mechanism of an automatic plate conveying line

Abstract

This utility model belongs to the technical field of sheet material lifting and positioning mechanisms, and in particular, a lifting and positioning mechanism for an automatic sheet material conveying line. Addressing the problem in existing technologies where the surface of the transport rollers is easily contaminated with oil, glue, and other sticky pollutants, thus affecting performance, the following solution is proposed: It includes a worktable with two support legs fixedly installed at its bottom, support seats fixedly installed on both sides of the worktable, two support legs fixedly installed at the bottom of each support seat, and support frames fixedly installed on the top of each support seat; it also includes: a transport mechanism, located on top of the two support seats, for automatically transporting the sheet material; and a self-cleaning roller assembly mechanism, located on top of the two support frames, for cleaning the surface of the transport mechanism. This utility model can automatically vacuum the transport rollers, preventing oil, glue, and other sticky pollutants from contaminating their surface, thus improving performance.

Description

Technical Field

[0001] This application relates to the technical field of sheet material lifting and positioning mechanisms, and in particular to a lifting and positioning mechanism for an automatic sheet material conveying line. Background Technology

[0002] In the application of a lifting and positioning mechanism in an automated sheet metal conveying line, it is often necessary to connect the stamping and cutting processes of metal sheets such as automotive body steel sheets and electronic device housings. After these metal sheets are stamped and cut, extreme pressure cutting oil and other stamping lubricating oil will remain on their surface. When the sheet enters the transportation stage of the lifting and positioning mechanism, the lubricating oil will be transferred to the surface of the transport rollers along with the sheet surface. At the same time, some of these lifting and positioning mechanisms use hydraulic drive for transportation. If there is a slight leakage in the hydraulic oil pipe, the leaked hydraulic oil will also adhere to the surface of the transport rollers. Existing mechanisms lack specific designs for preventing and removing oil stains from the transport rollers, making the transport rollers easily contaminated with oil, which in turn affects the stability of subsequent sheet metal transportation and the lifting and positioning accuracy.

[0003] In existing technologies, the surface of the transport roller is easily contaminated with sticky pollutants such as oil and glue, which affects its performance. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies, which easily lead to the surface of transport rollers being contaminated with sticky pollutants such as oil and glue, thus affecting the performance of the equipment. Therefore, this invention proposes a lifting and positioning mechanism for an automatic sheet metal conveying line.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A lifting and positioning mechanism for an automated sheet metal conveying line includes: The workbench has two support legs fixedly installed at its bottom, support bases fixedly installed on both sides, two support legs fixedly installed at the bottom of each support base, and a support frame fixedly installed at the top of each support base; it also includes: The transport mechanism, located on top of the two support bases, is used for the automatic transport of the sheet metal. The self-cleaning roller assembly, located on top of two support frames, is used to clean the surface of the transport mechanism; The swing mechanism is located at the bottom of the two support frames; The lifting and positioning buffer mechanism is located on the top of the workbench and is used to lift the sheet metal. A width adjustment mechanism, located on the top of the workbench, is used to adjust the width of the sheet material. The clamping mechanism, located on the top of the workbench, is used to clamp and fix the sheet metal.

[0006] Preferably, the transport mechanism includes multiple transport rollers rotatably mounted inside two support seats, and multiple drive motors are provided at the front ends of the two support seats, with the output shafts of the multiple drive motors respectively fixedly connected to the multiple transport rollers.

[0007] Preferably, the self-cleaning roller assembly includes a cleaning box fixedly installed on the top of the support frame. The cleaning box has an internal cavity. A second drive motor is installed on the inner wall of the cavity. A filter screen is fixedly installed inside the cavity. A rotating shaft is fixedly installed on the output shaft of the second drive motor. Fan blades are fixedly installed on the outer surface of the rotating shaft. A pipe is fixedly installed at the bottom of the cleaning box. The pipe passes through the cleaning box and the support frame. Multiple flexible hoses are fixedly installed at the bottom end of the pipe. Each of the multiple flexible hoses has a nozzle fixedly installed at its bottom end.

[0008] Preferably, the swing mechanism includes a hydraulic cylinder 1 disposed inside the rear side of the support frame. The output shaft of the hydraulic cylinder 1 is fixedly mounted with a movable box. The movable box is equipped with a drive motor 3. The output shaft of the drive motor 3 is fixedly mounted with a rotating rod. The outer surface of the rotating rod is rotatably connected to the interior of the movable box. Multiple first bevel gears are fixedly mounted on the outer surface of the rotating rod. The multiple first bevel gears are meshed with second bevel gears. A rotating rod is fixedly mounted on the front side of the multiple second bevel gears.

[0009] Preferably, the interior of the movable box is rotatably connected to multiple rotating rods, each of the multiple rotating rods is movably connected to the interior of the support frame, and each of the multiple rotating rods has a fixing block fixedly installed on its outer surface, and each of the multiple fixing blocks is fixedly connected to multiple nozzles respectively.

[0010] Preferably, the lifting and positioning buffer mechanism includes a second hydraulic cylinder disposed at the bottom of the worktable, a lifting block is fixedly installed on the output shaft of the second hydraulic cylinder, a telescopic rod is fixedly installed on the bottom of the lifting block, and a spring buffer is fixedly installed on the bottom of the worktable.

[0011] Preferably, the width adjustment mechanism includes a dual-head motor disposed inside the lifting block. Both output shafts of the dual-head motor are fixedly mounted with screws. The outer surfaces of the two screws are rotatably connected to the interior of the lifting block. The outer surfaces of the two screws are threadedly connected with connecting blocks. The tops of the two connecting blocks are fixedly mounted with movable blocks. The two movable blocks and the two connecting blocks are slidably connected to the interior of the lifting block.

[0012] Preferably, the clamping mechanism includes a drive motor four disposed inside the moving block, the output shaft of the drive motor four is fixedly mounted with a threaded rod, the outer surface of the threaded rod is rotatably connected to the interior of the moving block, a clamping block is threadedly connected to the outer surface of the threaded rod, and the outside of the clamping block is slidably connected to the interior of the moving block.

[0013] The beneficial effects of the lifting and positioning mechanism for the automatic sheet metal conveying line described in this utility model are as follows: Because of the self-cleaning roller assembly mechanism, the rotating shaft will simultaneously drive the fan blades to rotate, which can suck the dust remaining on the surface of the transport roller into the cleaning box through nozzles, multiple hoses and pipes. The dust sucked into the cleaning box is effectively collected to prevent it from drifting back onto the surface of the transport roller or the surrounding environment, ensuring the continuous cleanliness of the transport roller surface. It can filter and separate the sucked dust, while the finer dust falls into the collection area at the bottom of the cleaning box, which is convenient for subsequent centralized processing and cleaning of the dust. Because of the swing mechanism, the angle of the nozzle swing can be flexibly adjusted, thereby expanding the cleaning range of the nozzle and ensuring that all parts of the conveyor roller surface are thoroughly and evenly cleaned. This makes the cleaning process more efficient and comprehensive, avoiding the problem of cleaning dead corners caused by fixed nozzle positions. Moreover, the entire swing process is precisely controlled by the drive motor, which can adjust the swing frequency and amplitude according to actual needs to adapt to the cleaning work of conveyor roller surfaces with different levels of dirt. Because of the lifting and positioning buffer mechanism, the plate can be automatically lifted. When the lifting block returns along the original path, it will contact the spring buffer. The spring buffer can effectively absorb the impact force generated when the lifting block returns, reduce the wear and noise of the equipment caused by the impact, and extend the service life of the equipment. The elastic coefficient of the spring buffer can be selected and adjusted according to actual needs to ensure that it can play a good buffering role under different working conditions. Because of the width adjustment mechanism, the distance between the two moving blocks can be flexibly adjusted according to the actual width of the board, ensuring that the board can be stably clamped during transportation, avoiding deviation or shaking, and ensuring the accuracy and reliability of the lifting and positioning of the automatic board conveyor line. Because of the clamping mechanism, as the two clamping blocks move downwards, they gradually come into contact with the upper surface of the board and apply appropriate pressure to ensure that the board is firmly clamped in the designated position. This clamping method is not only easy to operate, but also can be flexibly adjusted according to the thickness and material of the board, avoiding damage to the board due to excessive clamping force or slippage of the board during transportation due to insufficient clamping force. In addition, the speed and direction of the drive motor can be precisely adjusted through the control system, further improving the stability and reliability of the board clamping.

[0014] This invention can automatically vacuum the conveyor rollers, preventing the surface of the conveyor rollers from being contaminated with sticky pollutants such as oil and glue, thus improving the performance. Attached Figure Description

[0015] Figure 1This is a structural schematic diagram of a lifting and positioning mechanism for an automatic sheet metal conveying line proposed in this utility model; Figure 2 This is a bottom view of the lifting and positioning mechanism of an automatic sheet material conveying line proposed in this utility model. Figure 3 This is a schematic diagram of the internal structure of the support frame of the lifting and positioning mechanism for an automatic sheet material conveying line proposed in this utility model. Figure 4 This is a schematic diagram of the width adjustment mechanism of the lifting and positioning mechanism of the automatic sheet material conveying line proposed in this utility model; Figure 5 This is a schematic diagram of the clamping mechanism of the lifting and positioning mechanism of the automatic sheet material conveying line proposed in this utility model. Figure 6 This utility model proposes a lifting and positioning mechanism for an automatic sheet metal conveying line. Figure 3 Enlarged structural diagram of section A; Figure 7 This utility model proposes a lifting and positioning mechanism for an automatic sheet metal conveying line. Figure 3 Enlarged structural diagram of section B; Figure 8 This utility model proposes a lifting and positioning mechanism for an automatic sheet metal conveying line. Figure 3 An enlarged structural diagram of section C.

[0016] Reference numerals: 1. Workbench; 2. Support leg one; 3. Support base; 4. Support leg two; 5. Support frame; 6. Cleaning box; 7. Transport roller; 8. Drive motor one; 9. Hydraulic cylinder two; 10. Lifting block; 11. Telescopic rod; 12. Drive motor two; 13. Rotating shaft; 14. Fan blade; 15. Filter screen; 16. Pipe; 17. Hose; 18. Nozzle; 19. Fixing block; 20. Rotating rod; 21. Moving box; 22. Drive motor three; 23. Rotating rod; 24. First bevel gear; 25. Second bevel gear; 26. Dual-head motor; 27. Screw; 28. Connecting block one; 29. ​​Moving block; 30. Drive motor four; 31. Threaded rod; 32. Clamping block; 33. Hydraulic cylinder one. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Example

[0018] Reference Figures 1-8 A lifting and positioning mechanism for an automatic sheet metal conveying line, comprising: The workbench 1 has two support legs 2 fixedly installed at its bottom, and support seats 3 fixedly installed on both sides of the workbench 1. Two support legs 4 are fixedly installed at the bottom of each support seat 3, and a support frame 5 is fixedly installed at the top of each support seat 3. It also includes: The transport mechanism, located on top of the two support bases 3, is used for the automatic transport of the sheet metal; The self-cleaning roller assembly is located on top of the two support frames 5 and is used to clean the surface of the transport mechanism. The swing mechanism is located at the bottom of the two support frames 5; A lifting and positioning buffer mechanism is installed on the top of the workbench 1 and is used to lift the sheet metal. A width adjustment mechanism is located on the top of the workbench 1 and is used to adjust the width of the board. The clamping mechanism is located on the top of the workbench 1 and is used to clamp and fix the sheet metal.

[0019] In this embodiment, the transport mechanism includes multiple transport rollers 7 rotatably mounted inside two support seats 3. The transport rollers 7 are made of 304 stainless steel, with an outer diameter of 50-80mm. The surface is covered with a 3-5mm thick silicone anti-slip sleeve with a friction coefficient ≥0.8, which can prevent the sheet material from slipping due to inertia during transport. The parallelism error of the axes of the multiple transport rollers 7 is ≤0.1mm / m, ensuring that the sheet material is transported in a straight line without deviation. Multiple drive motors 8 are provided at the front end of each of the two support seats 3. The output shafts of the multiple drive motors 8 are fixedly connected to the multiple transport rollers 7. The multiple drive motors 8 are all servo motors with reducers, a reduction ratio of 1:10, and a rated torque of 5-8N·m. They are connected to the transport rollers 7 through couplings. The couplings are flexible plum blossom couplings of model ML3, which compensate for radial deviation ≤0.1mm, reducing the impact of motor vibration on the transport rollers 7. An aluminum protective cover with an IP54 protection level is installed on the outside of the drive motors 8, which is suitable for dusty and oily environments in the workshop.

[0020] In this embodiment, the self-cleaning roller assembly includes a cleaning box 6 fixedly installed on the top of the support frame 5. The cleaning box 6 has an internal cavity, and a drive motor 12 is installed on the inner wall of the cavity. A filter screen 15 is fixedly installed inside the cavity. The cleaning box 6 is made of PP plastic with a thickness of 5-8mm. A removable cover is provided on the top, and a silicone sealing gasket is installed between the cover and the cleaning box to prevent dust leakage. The filter screen 15 is made of stainless steel woven mesh with a mesh count of 100-120, and is detachably connected to the inner wall of the cleaning box 6 through a slot for easy periodic removal. Wash or replace; the bottom of the cleaning box 6 is equipped with a drawer-type dust collection box made of ABS material with a capacity of 1-2L. The dust collection box is connected to the cleaning box by a buckle, which can be quickly pulled out to empty the dust without disassembling the overall structure. The output shaft of the drive motor 12 is fixedly installed with a rotating shaft 13. The outer surface of the rotating shaft 13 is fixedly installed with a fan blade 14. The bottom of the cleaning box 6 is fixedly installed with a pipe 16, which runs through the cleaning box 6 and the support frame 5. Multiple hoses 17 are fixedly installed at the bottom of the pipe 16, and nozzles 18 are fixedly installed at the bottom of each hose 17.

[0021] In the above, the pipe 16 is made of PVC material with an inner diameter of 30-50mm. Rubber O-rings are installed at the connection between the pipe 16 and the cleaning box 6 and the hose 17 to prevent air leakage from causing a decrease in suction power. The multiple hoses 17 are made of steel wire reinforced PU tubing with an inner diameter of 20-30mm, which can withstand negative pressure of -0.09MPa, can be flexibly bent and is not easy to age, and can adapt to the oscillation of the nozzle 18. Nozzle 18 is integrally formed from aluminum alloy. The nozzle orifice is flat with an opening width of 10-15mm, and the edge of nozzle 18 is rounded with R1-R2 to avoid scratching the surface of conveyor roller 7. A guide plate is set inside nozzle 18, which can make the airflow form an "adhesive" dust suction range covering 1 / 3 of the circumference of the surface of conveyor roller 7, thereby improving dust adsorption efficiency.

[0022] In this embodiment, the swing mechanism includes a hydraulic cylinder 33 located inside the rear side of the support frame 5. The output shaft of the hydraulic cylinder 33 is fixedly mounted on a movable box 21. The support frame 5 has a T-shaped vertical slide rail adapted to the movable box 21, which works in conjunction with the T-shaped sliders on both sides of the movable box 21. Lithium-based grease (GB / T7324-2010) is applied between the sliders and the slide rail to ensure that the movable box 21 moves up and down without jamming and that the synchronization error is ≤0.5mm. A drive motor 22 is installed inside the movable box 21. A rotating rod 23 is fixedly mounted on the output shaft of the drive motor 22. The outer surface of the rotating rod 23 is flush with the movable box 21. The internal rotating connection is such that multiple first bevel gears 24 are fixedly installed on the outer surface of the rotating rod 23, and multiple first bevel gears 24 mesh with second bevel gears 25. A rotating rod 20 is fixedly installed on the front side of each of the multiple second bevel gears 25. A rolling bearing of model 6002 is embedded at the connection between the rotating rod 23 and the moving box 21 to reduce rotational wear. The multiple first bevel gears 24 and second bevel gears 25 are all made of 20CrMnTi material, and are carburized and quenched to a hardness of HRC58-62. The tooth surface accuracy is grade 7 in GB / T10095.2-2008, which avoids tooth surface wear caused by long-term meshing and extends service life.

[0023] In this embodiment, the interior of the movable box 21 is rotatably connected to multiple rotating rods 20. Angle limiting blocks made of PA66+glass fiber are fixedly installed on the outside of the rotating rods 20. The limiting blocks can limit the swing angle of the rotating rods 20 to between -30° and +30°, preventing the nozzles 18 from swinging too much and hitting the transport rollers 7 or the support frame 5. Multiple rotating rods 20 are movably connected to the inside of the support frame 5. Fixing blocks 19 are fixedly installed on the outer surface of multiple rotating rods 20. Multiple fixing blocks 19 are fixedly connected to multiple nozzles 18 respectively. Angle limiting blocks made of PA66+glass fiber are fixedly installed on the outside of the rotating rods 20. The limiting blocks can limit the swing angle of the rotating rods 20 to between -30° and +30°, preventing the nozzles 18 from swinging too much and hitting the transport rollers 7 or the support frame 5.

[0024] In this embodiment, the lifting and positioning buffer mechanism includes a hydraulic cylinder 2 9 disposed at the bottom of the workbench 1. The output shaft of the hydraulic cylinder 2 9 is fixedly mounted with a lifting block 10. A telescopic rod 11 is fixedly mounted at the bottom of the lifting block 10. The telescopic rod 11 has an outer diameter of 20-30mm, an inner diameter of 18-28mm, and a quantity of 4 rods, which are respectively installed at the four corners of the bottom of the lifting block 10. The telescopic rod 11 and the guide sleeve at the bottom of the workbench 1 have a clearance of 0.05-0.1mm to ensure that the verticality error of the lifting block 10 in vertical movement is ≤0.1mm / m. A silicone anti-slip pad with a thickness of 3-5mm is fixedly mounted on the top of the lifting block 10. The surface has a diamond pattern and a friction coefficient ≥0.9 to prevent the plate from sliding during the lifting process. A spring buffer is fixedly mounted at the bottom of the workbench 1.

[0025] In the above, the spring buffer adopts polyurethane buffer model PU80×50, with a rated energy absorption of 50J, and there are 4 of them, corresponding to the four corners of the bottom of the lifting block 10. The top of the buffer is detachably connected to the bottom of the lifting block 10 by threads. The buffer stiffness range of 50~200N / mm can be replaced according to the weight of the plate. The hydraulic cylinder 2 9 adopts a double-acting hydraulic cylinder with a cylinder diameter of 50~80mm and a stroke of 100~200mm. A magnetostrictive displacement sensor model MTSR-Series with an accuracy of ±0.01mm is installed on the outside of the cylinder body, which can provide real-time feedback on the position of the lifting block 10 and avoid overtravel operation.

[0026] In this embodiment, the width adjustment mechanism includes a dual-head motor 26 disposed inside the lifting block 10. Both output shafts of the dual-head motor 26 are fixedly mounted with screws 27. The outer surfaces of the two screws 27 are rotatably connected to the interior of the lifting block 10. The outer surfaces of the two screws 27 are threadedly connected with connecting blocks 28. The tops of the two connecting blocks 28 are fixedly mounted with moving blocks 29. The two moving blocks 29 and the two connecting blocks 28 are slidably connected to the interior of the lifting block 10.

[0027] In the above, the two screws 27 are reverse-rotating screws. The left screw 27 is left-handed and the right screw is right-handed. The pitch is 4-6mm, and the thread accuracy is 6g as specified in GB / T197-2003. This ensures that when the dual-head motor 26 rotates, the two connecting blocks 28 can move closer or further apart synchronously with a synchronization error ≤0.2mm. The top of the lifting block 10 has a T-shaped groove adapted to the moving block 29. The groove is 0.1-0.2mm wider than the moving block 29. Solid lubricant of type Mo is applied inside the groove. S2, with a friction coefficient ≤0.05, reduces the sliding resistance of the moving block 29. The dual-head motor 26 is a servo motor with a rated power of 0.75-1.5kW and a rated speed of 1500r / min. The motor output shaft and the screw 27 are connected by an expansion sleeve coupling (model Z10) to transmit a torque of 10-20N・m, avoiding stress concentration caused by key connections. The lifting block 10 has a motor mounting cavity inside, and the outside of the mounting cavity is equipped with a dustproof cover made of aluminum alloy to prevent dust from entering and affecting the operation of the motor.

[0028] In this embodiment, the clamping mechanism includes a drive motor 30 disposed inside the movable block 29. The output shaft of the drive motor 30 is fixedly mounted with a threaded rod 31. The outer surface of the threaded rod 31 is rotatably connected to the interior of the movable block 29. A clamping block 32 is threadedly connected to the outer surface of the threaded rod 31. The clamping block 32 is made of aluminum alloy material model 6061-T6. A flexible silicone pad with a thickness of 2-3mm and a Shore hardness of 50-60HA is fixedly mounted on the bottom of the clamping block 32. The surface of the silicone pad is provided with micro-protrusions with a diameter of 0.5-1mm, which can increase the friction with the plate and avoid excessive clamping force from scratching the plate. The outside of the clamping block 32 is slidably connected to the inside of the movable block 29. Guide protrusions and guide grooves inside the movable block 29 are provided on both sides of the clamping block 32. The gap between the guide groove and the protrusion is ≤0.05mm to ensure that the verticality error of the clamping block 32 in vertical movement is ≤0.1mm.

[0029] In this invention, the sheet material is placed onto the transport roller 7. When automatic transport of the sheet material is required, the drive motor 8 is started, and its output shaft drives the transport roller 7 to transport the sheet material onto the lifting block 10. When the width of the sheet material needs to be adjusted, the dual-head motor 26 is started, and its output shaft rotates the two screws 27. The two screws 27 drive the two connecting blocks 28 to move closer together, which in turn drives the two moving blocks 29 to move closer together. This allows the spacing between the two moving blocks 29 to be flexibly adjusted according to the actual width of the sheet material, ensuring that the sheet material is stably clamped during transport and preventing deviation or shaking, thus guaranteeing the automatic transport of the sheet material. The conveyor line offers precise and reliable lifting and positioning. Furthermore, when clamping and fixing the sheet metal is required, activating two drive motors 30 causes their output shafts to rotate two threaded rods 31. These rods, in turn, move two clamping blocks 32 downwards. As the clamping blocks 32 move downwards, they gradually contact the upper surface of the sheet metal, applying appropriate pressure to ensure the sheet metal is securely clamped in the designated position. This clamping method is not only easy to operate but also allows for flexible adjustment based on the sheet metal's thickness and material, preventing damage due to excessive clamping force or slippage during transport due to insufficient clamping force. Moreover, the speed and direction of the drive motors 30 can be precisely adjusted via the control system, further improving... The stability and reliability of the plate clamping are ensured when automatic lifting of the plate is required. By activating hydraulic cylinder 29, its output shaft pushes lifting block 10 upwards, automatically lifting the plate. When lifting block 10 returns along its original path, it contacts a spring buffer. The spring buffer effectively absorbs the impact force generated during the return of lifting block 10, reducing wear and noise caused by impact and extending the equipment's service life. The elastic coefficient of the spring buffer can be selected and adjusted according to actual needs to ensure good buffering effect under different working conditions. During the automatic lifting of the plate by lifting block 10, hydraulic cylinder 29 provides a stable and continuous lifting force, ensuring the smoothness and accuracy of plate lifting and avoiding... In case of board shaking or tilting during lifting, this provides reliable assurance for subsequent board positioning and processing operations. When it is necessary to clean the surface of the transport roller 7, the hydraulic cylinder 33 is activated, and its output shaft pushes the moving box 21 downward. The moving box 21 simultaneously drives multiple rotating rods 23 downward, which in turn drive multiple fixed blocks 19, multiple nozzles 18, and multiple hoses 17 downward. When the nozzles 18 come into contact with the surface of the transport roller 7, the drive motor 12 is activated, and its output shaft drives the rotating shaft 13 to rotate. The rotating shaft 13 simultaneously drives the fan blades 14 to rotate, which can suck the dust remaining on the surface of the transport roller 7 into the cleaning box 6 through the nozzles 18, multiple hoses 17, and pipes 16.Dust sucked into the cleaning box 6 is effectively collected, preventing it from re-spreading onto the surface of the transport roller 7 or the surrounding environment, ensuring the continuous cleanliness of the transport roller 7 surface. This system filters and separates the sucked-in dust, while finer dust particles fall into the collection area at the bottom of the cleaning box 6 for convenient subsequent centralized processing and cleaning. Simultaneously, when the nozzle 18 needs to be oscillated, the drive motor 22 is activated, its output shaft driving the rotating rod 23 to rotate. The rotating rod 23 simultaneously drives multiple first bevel gears 24 to rotate, which in turn drive multiple second bevel gears 25 to rotate. The second bevel gear 25 simultaneously drives multiple rotating rods 20, multiple fixed blocks 19, and multiple nozzles 18 to oscillate. This allows for flexible adjustment of the oscillation angle of the nozzles 18, thereby expanding their cleaning range and ensuring thorough and uniform cleaning of all parts of the transport roller 7 surface. This makes the cleaning process more efficient and comprehensive, avoiding cleaning dead zones caused by fixed nozzle positions. Furthermore, the entire oscillation process is precisely controlled by the drive motor 22, allowing for adjustment of the oscillation frequency and amplitude according to actual needs, adapting to cleaning the transport roller 7 surface with varying degrees of dirt. Example

[0030] The difference between this embodiment and Embodiment 1 is that a vibrator is provided on the filter screen 15. The vibrator can generate regular vibrations, which can promote the faster shedding of dust adhering to the filter screen 15, preventing dust from accumulating on the filter screen 15 for a long time and causing clogging, thus affecting the filtration and dust separation effect. The vibration state can be flexibly adjusted according to the characteristics of the dust and the usage of the filter screen 15 to ensure that the filter screen 15 always maintains good filtration performance, further improving the efficiency and stability of the entire cleaning system in dust handling.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A lifting positioning mechanism of an automatic plate conveying line, comprising: A workbench (1), wherein two support legs (2) are fixedly installed at the bottom of the workbench (1), and support seats (3) are fixedly installed on both sides of the workbench (1). Two support legs (4) are fixedly installed at the bottom of each of the two support seats (3), and support frames (5) are fixedly installed at the top of each of the two support seats (3); characterized in that: it further includes: The transport mechanism is set on top of the two support bases (3) and is used for automatic transport of the board material; The self-cleaning roller assembly is located on top of two support frames (5) and is used to clean the surface of the transport mechanism; The swing mechanism is located at the bottom of the two support frames (5); The lifting and positioning buffer mechanism is located on the top of the workbench (1) and is used to lift the plate. A width adjustment mechanism is located on the top of the workbench (1) and is used to adjust the width of the board. The clamping mechanism is located on the top of the workbench (1) and is used to clamp and fix the plate.

2. The lifting positioning mechanism of the automatic plate conveying line according to claim 1, characterized in that: The transport mechanism includes multiple transport rollers (7) rotatably mounted inside two support seats (3). Multiple drive motors (8) are provided at the front ends of the two support seats (3). The output shafts of the multiple drive motors (8) are fixedly connected to the multiple transport rollers (7).

3. The lifting positioning mechanism of the automatic plate conveying line according to claim 1, characterized in that: The self-cleaning roller assembly includes a cleaning box (6) fixedly installed on the top of the support frame (5). The cleaning box (6) has an internal cavity. A second drive motor (12) is installed on the inner wall of the cavity. A filter screen (15) is fixedly installed inside the cavity. A rotating shaft (13) is fixedly installed on the output shaft of the second drive motor (12). A fan blade (14) is fixedly installed on the outer surface of the rotating shaft (13). A pipe (16) is fixedly installed at the bottom of the cleaning box (6). The pipe (16) passes through the cleaning box (6) and the support frame (5). Multiple hoses (17) are fixedly installed at the bottom end of the pipe (16). A nozzle (18) is fixedly installed at the bottom end of each of the multiple hoses (17).

4. The lifting positioning mechanism of the automatic plate conveying line according to claim 3, characterized in that: The swing mechanism includes a hydraulic cylinder (33) located inside the rear side of the support frame (5). The output shaft of the hydraulic cylinder (33) is fixedly mounted with a movable box (21). The movable box (21) is equipped with a drive motor (22). The output shaft of the drive motor (22) is fixedly mounted with a rotating rod (23). The outer surface of the rotating rod (23) is rotatably connected to the interior of the movable box (21). Multiple first bevel gears (24) are fixedly mounted on the outer surface of the rotating rod (23). Multiple first bevel gears (24) mesh with second bevel gears (25). Rotating rods (20) are fixedly mounted on the front side of multiple second bevel gears (25).

5. The lifting and positioning mechanism for an automatic sheet metal conveying line according to claim 4, characterized in that: The interior of the movable box (21) is rotatably connected to multiple rotating rods (20), and the multiple rotating rods (20) are movably connected to the interior of the support frame (5). The outer surfaces of the multiple rotating rods (20) are fixedly installed with fixing blocks (19), and the multiple fixing blocks (19) are respectively fixedly connected to multiple nozzles (18).

6. The lifting positioning mechanism of the automatic plate conveying line according to claim 1, characterized in that: The lifting and positioning buffer mechanism includes a hydraulic cylinder two (9) located at the bottom of the workbench (1). The output shaft of the hydraulic cylinder two (9) is fixedly mounted with a lifting block (10). The bottom of the lifting block (10) is fixedly mounted with a telescopic rod (11). The bottom of the workbench (1) is fixedly mounted with a spring buffer.

7. The lifting positioning mechanism of the automatic plate conveying line according to claim 1, characterized in that: The width adjustment mechanism includes a dual-head motor (26) disposed inside the lifting block (10). Both output shafts of the dual-head motor (26) are fixedly mounted with screws (27). The outer surfaces of the two screws (27) are rotatably connected to the interior of the lifting block (10). The outer surfaces of the two screws (27) are threadedly connected with connecting blocks (28). The tops of the two connecting blocks (28) are fixedly mounted with moving blocks (29). The two moving blocks (29) and the two connecting blocks (28) are slidably connected to the interior of the lifting block (10).

8. The lifting positioning mechanism of the automatic plate conveying line according to claim 7, characterized in that: The clamping mechanism includes a drive motor four (30) disposed inside the moving block (29). The output shaft of the drive motor four (30) is fixedly mounted with a threaded rod (31). The outer surface of the threaded rod (31) is rotatably connected to the interior of the moving block (29). A clamping block (32) is threadedly connected to the outer surface of the threaded rod (31). The outside of the clamping block (32) is slidably connected to the inside of the moving block (29).

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