A wind blade limiting lifting device for a plate

Abstract

The utility model relates to the technical field of board processing discloses a kind of wind knife limiting lifting devices for board, including bottom plate, the top of bottom plate is equipped with processing table, the both sides of processing table are fixedly connected with supporting plate in the top of bottom plate, the both sides of supporting plate are fixedly connected with adjusting plate, the side of adjusting plate is movably connected with limiting plate by limiting mechanism, wind knife assembly is slidably connected between two supporting plates by lifting mechanism, the both sides of wind knife assembly are provided with self-stop mechanism, and the lifting mechanism includes motor installed in the top of supporting plate, so that the device can be lifted by lifting mechanism with wind knife assembly at the same time can be limited to board by limiting mechanism Limiting processing, so that the processing precision and dust removal efficiency of the device can be effectively avoided to shift when using wind knife to dust, and further greatly improve.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal processing technology, specifically to a limit lifting device for a sheet metal air knife. Background Technology

[0002] Air knives have numerous applications in the industrial field, such as blowing away water and dust. They can be used to blow away dust and moisture from flat surfaces like steel plates and aluminum alloy profiles, remove moisture from the surfaces of beverage bottles and packaging cans, remove impurities, dust, residual liquid, and moisture from product surfaces and outer packaging, and clean conveyor belts. With a compressed air supply, air knives can perfectly meet these applications.

[0003] For example, Chinese patent application number 202020558000.4 describes a lifting air knife device. This patent has strong stability and flexible operation. It can quickly adjust the distance between the device and the workpiece as needed, and can perform more cleaning steps on the workpiece through the air knife group and the suction nozzle group, thereby improving cleaning efficiency.

[0004] However, in actual use, the aforementioned patent requires separate operations for raising and lowering the air knife and fixing the plate, resulting in low efficiency of the existing air knife device for dust removal. In addition, due to the different thicknesses of the plates, the existing device often requires manual observation to determine whether the air knife component has moved to the lowest height. This manual judgment method is not only time-consuming and labor-intensive, but also prone to human error, which may cause the air knife component to descend too much and damage the air knife component. Utility Model Content

[0005] The purpose of this utility model is to provide a limit lifting device for air knife of sheet metal, which solves the problems mentioned in the background art.

[0006] This application provides a limit lifting device for a sheet metal air knife, including a base plate, a processing table mounted on the top of the base plate, support plates fixedly connected to both sides of the processing table on the top of the base plate, an adjusting plate fixedly connected to both sides of the support plates, a limiting plate movably connected to one side of the adjusting plate via a limiting mechanism, an air knife assembly slidably connected between the two support plates via a lifting mechanism, and a self-stopping mechanism provided on both sides of the air knife assembly.

[0007] By adopting the above technical solution, this device can remove dust from the plates using the air knife assembly, thereby greatly improving the dust removal efficiency of this device.

[0008] Optionally, the lifting mechanism includes a motor mounted on the top of the support plate. The output end of the motor extends into the inner cavity of the support plate and is fixedly connected to a threaded rod. The outer surface of the threaded rod is threadedly connected to a threaded seat. One side of the threaded seat extends to the outside of the support plate through a groove and is fixedly connected to the air knife assembly.

[0009] By adopting the above technical solution, this device can use the lifting mechanism to drive the air knife assembly for lifting and lowering, thereby greatly improving the applicability of this device.

[0010] Optionally, the limiting mechanism includes a first bevel gear mounted on the outer surface of the threaded rod, with a second bevel gear meshing with both sides of the first bevel gear. A positive and negative lead screw is fixedly connected inside the second bevel gear. The other end of the positive and negative lead screw extends into the inner cavity of the adjusting plate and is rotatably connected to its other inner wall. Both the positive and negative threaded ends of the positive and negative lead screw are threadedly connected to lead screw nuts. One side of the lead screw nut extends to the outside of the adjusting plate through a limiting groove and is hinged to a connecting rod. The other end of the connecting rod is hinged to the limiting plate.

[0011] By adopting the above technical solution, this device can use the lifting mechanism to drive the air knife assembly to lift and lower, while simultaneously using the limiting mechanism to limit the plate, thereby effectively preventing the plate from shifting when using the air knife for dust removal, and thus greatly improving the processing accuracy and dust removal efficiency of this device.

[0012] Optionally, the air knife assembly includes a frame, with both sides of the frame fixedly connected to threaded seats, and a plurality of suction nozzle assemblies provided at the bottom of the frame.

[0013] By adopting the above technical solution, the dust removal process of the board material can be better achieved by utilizing the synergistic effect of multiple suction nozzle groups.

[0014] Optionally, the self-stop mechanism includes a self-stop groove formed on the outer surface of the frame. A lever is hinged to one side of the inner wall of the self-stop groove via a support seat. A self-stop switch is installed on the other side of the inner wall of the self-stop groove below the lever. A top rod is fixedly connected to the bottom of the side of the lever away from the self-stop switch. A connecting plate is fixedly connected to the bottom of the top rod. One side of the connecting plate extends to the outside of the self-stop groove and is fixedly connected to an abutment plate. The bottom end of the abutment plate is lower than the height of the nozzle assembly.

[0015] By adopting the above technical solution, the device can automatically cut off the power to the motor through the self-stop mechanism when the air knife assembly is adjusted to the lowest height, thereby greatly improving the practicality and safety of the device.

[0016] Optionally, an elastic telescopic rod is provided between the adjusting plate and the limiting plate, with the fixed end of the elastic telescopic rod fixedly connected to the adjusting plate and the telescopic end of the elastic telescopic rod fixedly connected to the limiting plate.

[0017] By adopting the above technical solution, the limiting effect of the elastic telescopic rod is utilized to enable the limiting plate to better limit and clamp the plate.

[0018] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows:

[0019] The technical solution of this application, by setting up a support plate, adjusting plate, limiting plate, motor, slide groove, threaded rod, threaded seat, first bevel gear, second bevel gear, positive and negative lead screws, lead screw nut, limiting groove, connecting rod and elastic telescopic rod, enables the device to simultaneously use the lifting mechanism to drive the air knife assembly to lift and lower, and use the limiting mechanism to limit the plate, thereby effectively preventing the plate from shifting when using the air knife for dust removal, and thus greatly improving the processing accuracy and dust removal efficiency of the device.

[0020] The technical solution of this application, by setting up a self-stopping slot, connecting plate, abutment plate, lever, top rod and self-stopping switch, enables the device to automatically cut off the power to the motor when the air knife assembly is adjusted to the lowest height, so that there is no need to manually observe to determine whether the air knife assembly is adjusted to the lowest lifting height. This can avoid the suction nozzle at the bottom of the air knife assembly from colliding with the plate, thereby greatly improving the practicality and safety of the device. Attached Figure Description

[0021] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0022] Figure 1 This is a three-dimensional structural diagram of the air knife limiting and lifting device for sheet metal according to the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of the support plate in the air knife limiting and lifting device for sheet metal according to this utility model;

[0024] Figure 3 This is a top sectional view of the adjusting plate in the air knife limiting and lifting device for sheet metal according to this utility model;

[0025] Figure 4 This is a schematic diagram of the internal structure of the air knife assembly and the connecting part of the abutment plate in the air knife limiting and lifting device for sheet metal of this utility model;

[0026] Figure 5 This utility model relates to a limit lifting device for a sheet metal air knife. Figure 4Enlarged view of point A in the middle.

[0027] In the diagram: 1. Base plate; 2. Machining table; 3. Support plate; 4. Adjusting plate; 5. Limiting plate; 6. Air knife assembly; 7. Motor; 8. Slide groove; 9. Threaded rod; 10. Threaded seat; 11. First bevel gear; 12. Second bevel gear; 13. Positive and negative lead screws; 14. Lead screw nut; 15. Limiting groove; 16. Connecting rod; 17. Elastic telescopic rod; 18. Self-stop groove; 19. Connecting plate; 20. Abutment plate; 21. Lever; 22. Top rod; 23. Self-stop switch. Detailed Implementation

[0028] Please see Figure 1-4 This utility model provides a technical solution: a limit lifting device for air knife of sheet metal, including a base plate 1, a processing table 2 installed on the top of the base plate 1, support plates 3 fixedly connected to both sides of the top of the base plate 1 on the processing table 2, an adjusting plate 4 fixedly connected to both sides of the support plate 3, a limiting plate 5 movably connected to one side of the adjusting plate 4 through a limiting mechanism, an air knife assembly 6 slidably connected between the two support plates 3 through a lifting mechanism, and a self-stopping mechanism provided on both sides of the air knife assembly 6.

[0029] By adopting the above technical solution, this device can remove dust from the plate through the air knife assembly 6, thereby greatly improving the dust removal efficiency of this device.

[0030] Furthermore, the lifting mechanism includes a motor 7 mounted on the top of the support plate 3. The output end of the motor 7 extends into the inner cavity of the support plate 3 and is fixedly connected to a threaded rod 9. The outer surface of the threaded rod 9 is threadedly connected to a threaded seat 10. One side of the threaded seat 10 extends to the outside of the support plate 3 through a slide groove 8 and is fixedly connected to the air knife assembly 6.

[0031] By adopting the above technical solution, this device can use the lifting mechanism to drive the air knife assembly 6 to lift and lower, thereby greatly improving the applicability of this device.

[0032] Furthermore, the limiting mechanism includes a first bevel gear 11 mounted on the outer surface of the threaded rod 9. Both sides of the first bevel gear 11 are meshed with second bevel gears 12. The inside of the second bevel gear 12 is fixedly connected to a positive and negative lead screw 13. The other end of the positive and negative lead screw 13 extends into the inner cavity of the adjusting plate 4 and is rotatably connected to its other inner wall. The threaded portions at both ends of the positive and negative lead screw 13 are threadedly connected to lead screw nuts 14. One side of the lead screw nut 14 extends to the outside of the adjusting plate 4 through the limiting groove 15 and is hinged to a connecting rod 16. The other end of the connecting rod 16 is hinged to the limiting plate 5.

[0033] By adopting the above technical solution, this device can use the lifting mechanism to drive the air knife assembly 6 to lift and lower, while simultaneously using the limiting mechanism to limit the plate, thereby effectively preventing the plate from shifting when using the air knife for dust removal, and thus greatly improving the processing accuracy and dust removal efficiency of this device.

[0034] Furthermore, the air knife assembly includes a frame, with both sides of the frame fixedly connected to the threaded seat 10, and multiple suction nozzle assemblies provided at the bottom of the frame.

[0035] By adopting the above technical solution, the dust removal process of the board material can be better achieved by utilizing the synergistic effect of multiple suction nozzle groups.

[0036] Furthermore, the self-stop mechanism includes a self-stop groove 18 formed on the outer surface of the frame. A lever 21 is hinged to one side of the inner wall of the self-stop groove 18 via a support seat. A self-stop switch 23 is installed on the other side of the inner wall of the self-stop groove 18 below the lever 21. A top rod 22 is fixedly connected to the bottom of the side of the lever 21 away from the self-stop switch 23. A connecting plate 19 is fixedly connected to the bottom of the top rod 22. One side of the connecting plate 19 extends to the outside of the self-stop groove 18 and is fixedly connected to an abutment plate 20. The bottom end of the abutment plate 20 is lower than the height of the nozzle assembly.

[0037] By adopting the above technical solution, the device can automatically cut off the power to the motor 7 through the self-stop mechanism when the air knife assembly 6 is adjusted to the lowest height, thereby greatly improving the practicality and safety of the device.

[0038] Furthermore, an elastic telescopic rod 17 is provided between the adjusting plate 4 and the limiting plate 5. The fixed end of the elastic telescopic rod 17 is fixedly connected to the adjusting plate 4, and the telescopic end of the elastic telescopic rod 17 is fixedly connected to the limiting plate 5.

[0039] By adopting the above technical solution, the limiting effect of the elastic telescopic rod 17 is utilized to enable the limiting plate 5 to better limit and clamp the plate.

[0040] In operation, the operator first transports the sheet metal to the processing table 2 via the conveying device, then starts the motor 7, causing the motor 7 to drive the threaded rod 9 to rotate. As the threaded rod 9 rotates, it simultaneously moves the threaded seat 10 downwards under the limiting action of the slide groove 8, and drives the first bevel gear 11 to rotate. When the threaded seat 10 moves downwards, it drives the air knife assembly 6 downwards. When the first bevel gear 11 rotates, it drives the second bevel gears 12 on both sides to rotate through meshing. When the second bevel gears 12 rotate, they drive the positive and negative lead screws 13 to rotate. When the positive and negative lead screws 13 rotate, they drive the lead screw nuts 14 at both ends of the threaded section to move relative to each other under the limiting action of the limiting groove 15. This allows the lead screw nuts 14 to drive the limiting plate 5 via the connecting rod 16 to limit the sheet metal. When the air knife assembly 6 descends to its lowest height, the limiting plate 5 precisely limits the sheet metal to the center of the processing table 2, thus effectively... To prevent the sheet metal from shifting during dust removal using the air knife, the dust removal efficiency of this device is greatly improved. When the air knife assembly 6 moves downward, the abutment plates 20 on both sides will first contact the sheet metal. As the air knife assembly 6 continues to descend, the abutment plates 20 will drive the connecting plate 19 to move upward along the self-stop groove 18. This allows the abutment plates 20 to drive the top rod 22 to lift one side of the lever 21 upward, thereby allowing the other side of the lever 21 to deflect downward and press against the self-stop switch 23. Since the support of the lever 21 is close to the end of the top rod 22, the downward deflection of the lever 21 is greater than the upward lifting, resulting in higher self-stop accuracy. When the lever 21 presses against the self-stop switch 23, the self-stop switch 23 will automatically shut off the motor 7, allowing the air knife assembly 6 to automatically stop descending. This prevents the suction nozzle at the bottom of the air knife assembly 6 from colliding with the sheet metal, thus greatly improving the practicality and safety of this device.

Claims

1. A limit lifting device for a sheet metal air knife, comprising a base plate (1), characterized in that: A processing table (2) is installed on the top of the base plate (1). Support plates (3) are fixedly connected to both sides of the processing table (2) on the top of the base plate (1). Adjustment plates (4) are fixedly connected to both sides of the support plates (3). A limit plate (5) is movably connected to one side of the adjustment plate (4) through a limit mechanism. An air knife assembly (6) is slidably connected between the two support plates (3) through a lifting mechanism. A self-stopping mechanism is provided on both sides of the air knife assembly (6).

2. The air knife limiting and lifting device for sheet metal according to claim 1, characterized in that: The lifting mechanism includes a motor (7) installed on the top of the support plate (3). The output end of the motor (7) extends into the inner cavity of the support plate (3) and is fixedly connected to a threaded rod (9). The outer surface of the threaded rod (9) is connected to a threaded seat (10) by a thread. One side of the threaded seat (10) extends to the outside of the support plate (3) through a groove (8) and is fixedly connected to the air knife assembly (6).

3. The air knife limiting and lifting device for sheet metal according to claim 2, characterized in that: The limiting mechanism includes a first bevel gear (11) mounted on the outer surface of the threaded rod (9). Both sides of the first bevel gear (11) are meshed with second bevel gears (12). The inside of the second bevel gear (12) is fixedly connected to a positive and negative screw (13). The other end of the positive and negative screw (13) extends to the inner cavity of the adjusting plate (4) and is rotatably connected to the inner wall of its other side. The threaded parts at both ends of the positive and negative screw (13) are threadedly connected to screw nuts (14). One side of the screw nut (14) extends to the outside of the adjusting plate (4) through a limiting groove (15) and is hinged to a connecting rod (16). The other end of the connecting rod (16) is hinged to the limiting plate (5).

4. The air knife limiting and lifting device for sheet metal according to claim 1, characterized in that: The air knife assembly includes a frame, with both sides of the frame fixedly connected to threaded seats (10), and a plurality of suction nozzles are provided at the bottom of the frame.

5. The air knife limiting and lifting device for sheet metal according to claim 4, characterized in that: The self-stop mechanism includes a self-stop groove (18) formed on the outer surface of the frame. A lever (21) is hinged to one side of the inner wall of the self-stop groove (18) via a support seat. A self-stop switch (23) is installed on the other side of the inner wall of the self-stop groove (18) below the lever (21). A top rod (22) is fixedly connected to the bottom of the side of the lever (21) away from the self-stop switch (23). A connecting plate (19) is fixedly connected to the bottom of the top rod (22). One side of the connecting plate (19) extends to the outside of the self-stop groove (18) and is fixedly connected to an abutment plate (20). The bottom height of the abutment plate (20) is lower than the height of the nozzle assembly.

6. The air knife limiting and lifting device for sheet metal according to claim 1, characterized in that: An elastic telescopic rod (17) is provided between the adjusting plate (4) and the limiting plate (5). The fixed end of the elastic telescopic rod (17) is fixedly connected to the adjusting plate (4), and the telescopic end of the elastic telescopic rod (17) is fixedly connected to the limiting plate (5).

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