Aluminum plate strip winding equipment

Abstract

The invention discloses aluminum plate strip winding equipment, and belongs to the technical field of aluminum plate strip winding, the aluminum plate strip winding equipment comprises a control machine and a winding roller arranged on the outer side surface of the control machine, the control machine is mounted on the upper surface of a machining table top, a machining cover is mounted above the machining table top, a polishing assembly is arranged in the machining cover, and the polishing assembly is connected with the control machine. The grinding assembly comprises a grinding clamping seat and further comprises a moving frame. The aluminum plate strip winding equipment is provided with a cleaning scraping plate, while a half gear drives a movable frame to do reciprocating translation movement through two rows of tooth blocks, an ejection block connected to the left side of the movable frame ejects a wedge block to drive a movable base to do position movement in a machining cover through a telescopic rod, and then the ejection block can drive the inclined wedge block to move forwards; and therefore, the cleaning scraping plate can be driven to movably clean dust and impurities adhering to the surface of the aluminum plate strip, the situation that the dust and impurities adhere to the surface of the aluminum plate strip to affect later winding treatment is avoided, and the cleaning efficiency of the aluminum plate strip is improved.

Description

Technical Field

[0001] This invention relates to the field of aluminum sheet and strip winding technology, specifically to an aluminum sheet and strip winding device. Background Technology

[0002] Aluminum sheet and strip are plates or strips made from aluminum as a base material, with the addition of alloying elements such as copper, silicon, magnesium, zinc, and manganese, and processed through rolling and other processes. They are widely used in aerospace, construction, transportation, electronics, and other fields. Among them, aluminum sheet and strip winding equipment is the core equipment in the aluminum processing industry. It is mainly used to wind continuously produced aluminum sheet and strip materials into coils for easy storage, transportation, and subsequent processing. It is widely used in aluminum processing production lines, metal processing enterprises, and the packaging and construction industries. Existing technology 1 (Chinese patent application number CN202122765107.3, application date 2021-11-12) describes a winding device for aluminum sheet and strip processing with a leveling function, which is equipped with a pressure plate, an inner pulley, and a connecting column. The rotation of the inner pulley causes the connecting column to rotate, pulling the pressure plate inside the moving groove. The movement of the aluminum strip compresses it, flattening it and facilitating winding, reducing its space requirements and preventing loosening. In the prior art (Chinese patent application number CN202220856047.8, filed on 2022-04-12), the winding device of an antistatic aluminum strip slitting machine uses a movable rod to extend and retract, ensuring the vertical plate doesn't obstruct winding when the winding radius is large. A semi-arc plate is used for winding, and the outward stretching of the clamping block places the aluminum strip into the gap, while the rebound force clamps the strip, securing the head for easier subsequent winding. The extension and retraction of the second telescopic rod allows multiple semi-arc plates to expand outward or retract inward, adjusting the inner diameter of the winding.

[0003] While existing technologies can achieve more efficient winding of aluminum sheets and strips, the manufacturing process of aluminum sheets and strips often results in side burrs. Winding equipment cannot trim or polish these burrs during the winding process, requiring manual trimming later, which increases material waste and process costs, making it impractical. Therefore, this paper proposes an aluminum sheet and strip winding device to address the problem of side burrs caused by the aluminum sheet and strip manufacturing process, and the inability of winding equipment to trim or polish these burrs, which necessitates manual trimming later, increasing material waste and process costs, and reducing practicality. Summary of the Invention

[0004] The purpose of this invention is to provide an aluminum sheet and strip winding device to solve the problems currently found in the market as described in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an aluminum sheet and strip winding device, comprising a control unit and a winding roller disposed on the outer side of the control unit, wherein the control unit is mounted on the upper surface of a processing table, and an extrusion roller is also disposed on the upper surface of the processing table; a processing cover is mounted above the processing table, and a drive motor is mounted above the processing cover; a storage box is also disposed above the processing cover; a grinding assembly is disposed inside the processing cover, wherein the grinding assembly includes grinding clamps, and the grinding clamps are symmetrically disposed inside the processing cover; the grinding assembly also includes a movable frame, wherein the movable frame is slidably mounted on the top of the processing cover, and a connecting frame is mounted on the right end of the movable frame, and two grinding clamps are fixedly connected to the lower part of the connecting frame.

[0006] Preferably, the output end of the drive motor is connected to a half gear, wherein the half gear is set inside the processing cover, and the outer side of the half gear is connected to a moving frame through two rows of tooth blocks meshing. The two rows of tooth blocks are equally spaced and symmetrically arranged about the transverse center line of the moving frame, so that the moving frame can be driven to reciprocate and translate while the half gear rotates.

[0007] Preferably, the processing table has a hollow interior, and a collection frame is attached to the bottom of the processing table via a hook. A grinding clamp is located above the collection frame. The grinding clamp is slidably connected to the conveyed aluminum strip. The grinding clamp is C-shaped and can be used to reciprocate and grind the burrs on the side of the conveyed aluminum strip, thereby improving the winding efficiency of the aluminum strip.

[0008] Preferably, a top block is installed on the rear side of the movable frame, and a wedge block is correspondingly provided on the outer side of the top block. The wedge block is slidably installed inside the processing cover via a movable seat. The outer side of the wedge block is inclined, and a cleaning scraper is provided on the front side of the wedge block. The upper surface of the conveying aluminum strip is correspondingly located below the cleaning scraper.

[0009] Preferably, the interior of the movable seat is slidably connected to a telescopic rod via a first return spring, and the rear end of the telescopic rod extends through to the outside of the processing cover, while the front end of the telescopic rod passes through a wedge block and is connected to a cleaning scraper, wherein the cleaning scraper and the wedge block form a sliding connection.

[0010] Preferably, a third magnet is installed on the outer side of the telescopic rod, and a fourth magnet is correspondingly installed on the outer side of the third magnet. A row of fourth magnets is set on the inner wall of the processing cover, and the row of fourth magnets is equally spaced. The third magnet and the fourth magnet have the same magnetic poles.

[0011] Preferably, a second magnet is provided on the front side of the movable frame, and a first magnet is provided below the second magnet, and a first magnet is provided on the upper surface of a row of collection trays.

[0012] Preferably, a steel air pipe is rotatably installed on the inner wall of the processing cover by a torsion spring, and a row of collection trays is evenly spaced on the outer surface of the steel air pipe. The steel air pipe is connected to a storage box through a pipeline. A first magnet is provided on the upper surface of the row of collection trays, wherein the magnetic poles of the first magnet and the second magnet are opposite.

[0013] Preferably, the inside of the collection frame is provided with a force plate, and a lifting rod is correspondingly provided above the force plate. The lifting rod is slidably installed inside the collection frame by a second return spring, wherein the top end of the lifting rod extends through into the inside of the processing cover.

[0014] Preferably, an eccentric wheel is installed at the left end of the steel air pipe, and a lifting rod is correspondingly located below the eccentric wheel. The diameter of the eccentric wheel is larger than the diameter of the steel air pipe, and the top of the lifting rod is arc-shaped.

[0015] Compared with the prior art, the beneficial effects of this invention are as follows: The movable frame, via a connecting frame, drives two grinding clamps to reciprocate and move the conveyed aluminum strip for grinding, thus removing burrs from the sides of the aluminum strip. This avoids the need for manual trimming of burrs later, reducing material waste and process costs. Furthermore, the cleaning scraper reciprocates to clean dust and debris adhering to the surface of the aluminum strip, better assisting in the winding process. A row of collection trays absorbs and treats dust and debris generated during cleaning, preventing them from scattering on the outside of the winding equipment and affecting the winding efficiency. Finally, the reciprocating lifting and tapping of the lifting rod vibrates and collects debris and debris adhering to the surface of the collection frame 8, preventing them from sticking to the inner wall of the collection frame 8 and affecting the subsequent winding process. (1) A grinding clamp is provided. When the aluminum strip needs to be wound up, the drive motor is started to drive the half gear to rotate inside the top of the processing cover. Then the rotating half gear will drive the moving frame to move back and forth through two rows of tooth blocks. This will drive the connecting frame installed on the right side of the moving frame to drive the grinding clamp to move back and forth. The aluminum strip can be ground on the side by the grinding clamp, avoiding the need for manual trimming of the burrs on the side of the aluminum strip in the later stage. This reduces material loss and process cost and is more practical.

[0016] (2) A cleaning scraper is provided. While the half gear drives the moving frame to move back and forth through two rows of toothed blocks, the top block connected to the left side of the moving frame pushes the wedge block and drives the moving seat to move inside the processing cover through the telescopic rod. Then the top block can drive the inclined wedge block to move forward, thereby driving the cleaning scraper to move and clean the dust and impurities adhering to the surface of the aluminum strip, avoiding the dust and impurities from adhering to the surface of the aluminum strip and affecting the subsequent winding process, thus improving the cleaning efficiency of the aluminum strip.

[0017] (3) Furthermore, when the wedge block drives the cleaning scraper to move for cleaning, the third magnet set above the telescopic rod will drive the telescopic rod to extend through the first reset spring by repelling a row of fourth magnets through the principle of magnetic repulsion between like poles, thereby expanding the cleaning range of the cleaning scraper and better assisting the aluminum strip in winding, thus improving its practicality.

[0018] (4) A collection tray is provided. While the moving frame drives the top block to move back and forth, the moving frame will also drive the second magnet and the first magnet set on the upper surface of a row of collection trays to drive the steel air pipe to swing intermittently through the principle of magnetic attraction between opposite poles. This can expand the collection range of a row of collection trays and better transport the collected debris and impurities to the inside of the storage box, avoiding debris, dust and impurities from sticking to the surface of the aluminum strip and affecting the subsequent winding process, thus improving practicality.

[0019] (5) An eccentric wheel is provided. While the collection plate drives the steel air pipe to rotate intermittently, the steel air pipe will simultaneously drive the eccentric wheel to drive the lifting rod to move down inside the collection frame through the second reset spring. At this time, the lifting rod that is squeezed down will beat and vibrate the force plate set inside the collection frame. The vibration force of the beating can be used to vibrate and collect the debris and impurities adhering to the surface of the collection frame, so as to avoid the debris and impurities adhering to the inner wall of the collection frame and affecting the subsequent winding process of the aluminum strip, thus improving the collection efficiency of grinding debris. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a bottom-view three-dimensional structural diagram of the processing table and collection frame of the present invention; Figure 3 This is a partial three-dimensional structural diagram of the processing table and processing cover of the present invention; Figure 4 This is a partial three-dimensional structural diagram of the movable frame and grinding clamp of the present invention; Figure 5 For the present invention Figure 4 Enlarged structural diagram at point A in the middle; Figure 6This is a side-view perspective three-dimensional structural diagram of the movable frame and cleaning scraper of the present invention; Figure 7 For the present invention Figure 6 Enlarged structural diagram at point B; Figure 8 This is a partial three-dimensional structural diagram of the wedge block and top block of the present invention; Figure 9 This is a partial three-dimensional structural diagram of the collection frame and lifting rod of the present invention; Figure 10 For the present invention Figure 9 Enlarged structural diagram at point C.

[0021] In the diagram: 1. Processing table; 2. Control unit; 3. Rewinding roller; 4. Extrusion roller; 5. Processing cover; 6. Drive motor; 7. Storage bin; 8. Collection frame; 9. Moving seat; 10. Telescopic rod; 11. Hook; 12. Moving frame; 13. Connecting frame; 14. Grinding clamp; 15. Half gear; 16. Tooth block; 17. Steel air pipe; 18. Collection tray; 19. Eccentric wheel; 20. Lifting rod; 21. Wedge block; 22. Cleaning scraper; 23. First magnet; 24. Second magnet; 25. Top block; 26. Third magnet; 27. Fourth magnet; 28. Torsion spring; 29. ​​First return spring; 30. Force plate; 31. Second return spring. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] This invention provides the following technical solution: an aluminum sheet and strip winding device. Example 1 addresses the issue that existing aluminum sheet and strip production processes often result in side burrs on the aluminum sheet and strip. Furthermore, the winding equipment cannot remove these burrs during winding, requiring manual trimming later, which increases material waste and process costs, leading to poor practicality. The proposed solution includes a control machine 2 and a winding roller 3 mounted on the outer side of the control machine 2. The control machine 2 is installed on the upper surface of a processing table 1, and the upper surface of the processing table 1 is also equipped with an extrusion roller 4. Figure 1 As shown, a processing cover 5 is installed above the processing table 1, and a drive motor 6 is installed above the processing cover 5. A storage box 7 is also provided above the processing cover 5. Figure 2As shown, a grinding assembly is provided inside the processing cover 5. The grinding assembly includes grinding clamps 14, which are symmetrically arranged inside the processing cover 5. The grinding assembly also includes a movable frame 12, which is slidably mounted on the top of the processing cover 5. A connecting frame 13 is mounted on the right end of the movable frame 12, and two grinding clamps 14 are fixedly connected to the lower part of the connecting frame 13. Figure 3 and Figure 4 As shown.

[0024] The output end of the drive motor 6 is connected to a half gear 15, which is located inside the processing cover 5. The outer side of the half gear 15 is connected to a moving frame 12 via two rows of toothed blocks 16. The two rows of toothed blocks 16 are equally spaced and symmetrically arranged about the transverse center line of the moving frame 12. The processing table 1 is hollow inside, and a collection frame 8 is hung below the processing table 1 via a hook 11. A grinding clamp 14 is located above the collection frame 8, and a conveying aluminum strip is slidably attached to the inside of the grinding clamp 14. The grinding clamp 14 is C-shaped. Figure 3 and Figure 6 As shown.

[0025] When the aluminum strip is wound by the winding equipment, it is only necessary to convey the aluminum strip to the winding equipment via the conveying mechanism. Then, the aluminum strip is wound around the winding roller 3 by the extrusion roller 4, thus achieving the winding process. Figure 1 and Figure 2 As shown, the drive motor 6 is then started to drive the half gear 15 to rotate on the top inner side of the processing cover 5. The rotating half gear 15 then drives the moving frame 12 to reciprocate through the two rows of toothed blocks 16, thereby driving the connecting frame 13 mounted on the right side of the moving frame 12 to drive the grinding clamp 14 to reciprocate. Figure 3 and Figure 6 As shown, the aluminum strip being conveyed can be side-grinded using the grinding clamp 14, avoiding the need for manual trimming of burrs on the sides of the aluminum strip later. Figure 8 As shown, this reduces material waste and process costs, and improves practicality.

[0026] Example 2 differs from Example 1 in that, while the grinding clamp 14 is simultaneously grinding the side of the aluminum strip, the cleaning scraper 22 is driven to push and clean the dust, impurities, or grinding debris on the surface of the aluminum strip. This causes the cleaned debris to fall into the collection frame 8. Furthermore, the collection tray 18 can absorb the cleaned dust and impurities into the storage bin 7, resulting in better practicality. The following is disclosed: A top block 25 is installed on the rear side of the movable frame 12, and a wedge block 21 is correspondingly provided on the outer side of the top block 25. The wedge block 21 is slidably installed inside the processing cover 5 via the movable seat 9. The outer side of the wedge block 21 is inclined, and a cleaning scraper 22 is provided on the front side of the wedge block 21. The upper surface of the conveying aluminum strip is correspondingly located below the cleaning scraper 22. Figure 6 As shown, a telescopic rod 10 is slidably connected inside the movable seat 9 via a first return spring 29, and the rear end of the telescopic rod 10 extends through to the outside of the processing cover 5, while the front end of the telescopic rod 10 passes through the wedge block 21 and is connected to a cleaning scraper 22, wherein the cleaning scraper 22 and the wedge block (21) form a sliding connection, as shown. Figure 8 As shown, a third magnet 26 is installed on the outer side of the telescopic rod 10, and a fourth magnet 27 is correspondingly installed on the outer side of the third magnet 26. A row of fourth magnets 27 is installed on the inner wall of the processing cover 5, and the fourth magnets 27 are evenly spaced. The third magnet 26 and the fourth magnet 27 have the same magnetic poles. A second magnet 24 is installed on the front side of the moving frame 12, and a first magnet 23 is correspondingly installed below the second magnet 24. The upper surface of a row of collecting trays 18 is also equipped with a first magnet 23. Figure 7 As shown, the first magnet 23 is disposed on the upper surface of the collecting tray 18. A steel air pipe 17 is rotatably mounted on the inner wall of the processing cover 5 via a torsion spring 28. A row of collecting trays 18 is evenly spaced on the outer surface of the steel air pipe 17, and the steel air pipe 17 is connected to a storage box 7 via a pipeline. The first magnet 23 is disposed on the upper surface of the row of collecting trays 18, wherein the magnetic poles of the first magnet 23 and the second magnet 24 are opposite. Figure 5 As shown.

[0027] like Figures 1-8 As shown, while the moving frame 12 is reciprocating, the top block 25 connected to the left side of the moving frame 12 pushes the wedge block 21, which in turn drives the moving seat 9 to move within the processing cover 5 via the telescopic rod 10. Figure 8 As shown, the top block 25 then moves the inclined wedge block 21 forward, thereby moving the cleaning scraper 22 to clean the dust and impurities adhering to the surface of the aluminum strip. Figure 6 As shown, to prevent dust and impurities from adhering to the surface of the aluminum strip and affecting subsequent winding, the cleaning efficiency of the aluminum strip is improved. Subsequently, the third magnet 26 set above the telescopic rod 10 and a row of fourth magnets 27 drive the telescopic rod 10 through the principle of magnetic repulsion, which drives the cleaning scraper 22 connected to the front end to extend and move via the first return spring 29, thereby expanding the cleaning range of the cleaning scraper 22. Figure 7 As shown, it provides better assistance for the coiling of aluminum strips and is more practical.

[0028] While the moving frame 12 drives the top block 25 to reciprocate, the moving frame 12 also drives the second magnet 24 and the first magnet 23 set on the upper surface of the row of collecting trays 18 to drive the steel air pipe 17 to oscillate intermittently through the principle of magnetic attraction between opposite magnetic fields. This expands the collection range of the row of collecting trays 18 and better transports the collected debris and impurities to the inside of the storage box 7, preventing debris, dust and impurities from sticking to the surface of the aluminum strip and affecting the subsequent winding process. Figure 4 and Figure 5 As shown.

[0029] Example 3, unlike Example 2, involves a steel air pipe 17 driving a row of collection trays 18 to collect dust and impurities while simultaneously driving a lifting rod 20 to reciprocate and vibrate the force plate 30 via a second return spring 31. This vibration force effectively collects debris and impurities adhering to the surface of the collection frame 8, preventing them from sticking to the inner wall of the collection frame 8 and affecting subsequent aluminum strip winding. The following is disclosed: The collection frame 8 has a force-bearing plate 30 inside, and a lifting rod 20 is positioned above the force-bearing plate 30. The lifting rod 20 is slidably mounted inside the collection frame 8 via a second return spring 31. Figure 9 As shown, the top end of the lifting rod 20 extends through the interior of the processing hood 5. An eccentric wheel 19 is installed at the left end of the steel air pipe 17, and the lifting rod 20 is positioned below the eccentric wheel 19. The diameter of the eccentric wheel 19 is larger than the diameter of the steel air pipe 17, and the top end of the lifting rod 20 is arc-shaped. Figure 10 As shown.

[0030] While the collecting tray 18 drives the steel air pipe 17 to rotate intermittently, the steel air pipe 17 simultaneously drives the eccentric wheel 19 to drive the lifting rod 20 to move downwards inside the collecting frame 8 via the second return spring 31. Figure 8 As shown, when the lifting rod 20 is pressed down, it will beat and vibrate the force plate 30 inside the collection frame 8. This vibration will collect the debris and impurities adhering to the surface of the collection frame 8, preventing them from sticking to the inner wall and affecting the subsequent winding of the aluminum strip. This improves the efficiency of collecting grinding debris. Finally, the second return spring 31 will elastically reset the position of the lifting rod 20 after its descent, facilitating repeated descent and beating vibrations later. Figure 9 and Figure 10 As shown.

[0031] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An aluminum sheet and strip winding device, comprising a control machine (2) and a winding roller (3) disposed on the outer side of the control machine (2), wherein the control machine (2) is mounted on the upper surface of a processing table (1), and the upper surface of the processing table (1) is also provided with an extrusion roller (4). Its features are: A processing cover (5) is installed above the processing table (1), and a drive motor (6) is installed above the processing cover (5). A storage box (7) is also provided above the processing cover (5). The processing cover (5) is provided with a grinding assembly inside, wherein the grinding assembly includes a grinding clamp (14), and the grinding clamp (14) is symmetrically arranged inside the processing cover (5); The polishing assembly also includes a movable frame (12), which is slidably mounted on the top of the processing cover (5), and a connecting frame (13) is installed on the right end of the movable frame (12), and two polishing clamps (14) are fixedly connected to the bottom of the connecting frame (13).

2. The aluminum sheet and strip winding equipment according to claim 1, characterized in that: The output end of the drive motor (6) is connected to a half gear (15), wherein the half gear (15) is set inside the processing cover (5), and the outer side of the half gear (15) is connected to the moving frame (12) by two rows of tooth blocks (16). The two rows of tooth blocks (16) are equally spaced and symmetrical about the transverse center line of the moving frame (12).

3. The aluminum sheet and strip winding equipment according to claim 1, characterized in that: The processing table (1) has a hollow interior, and a collection frame (8) is attached to the bottom of the processing table (1) by a hook (11), and a grinding clamp (14) is attached to the top of the collection frame (8). Meanwhile, an aluminum plate strip is slidably attached to the inside of the grinding clamp (14), and the grinding clamp (14) is in the shape of a "C".

4. The aluminum sheet and strip winding equipment according to claim 1, characterized in that: A top block (25) is installed on the rear side of the movable frame (12), and a wedge block (21) is corresponding to the outer side of the top block (25). The wedge block (21) is slidably installed inside the processing cover (5) via the movable seat (9). The outer side of the wedge block (21) is inclined, and a cleaning scraper (22) is provided on the front side of the wedge block (21). The upper surface of the conveying aluminum strip is corresponding to the cleaning scraper (22).

5. The aluminum sheet and strip winding equipment according to claim 4, characterized in that: The interior of the movable seat (9) is slidably connected to a telescopic rod (10) via a first reset spring (29), and the rear end of the telescopic rod (10) extends through to the outside of the processing cover (5), and the front end of the telescopic rod (10) is connected to a cleaning scraper (22) through a wedge block (21), wherein the cleaning scraper (22) and the wedge block (21) are slidably connected.

6. The aluminum sheet and strip winding equipment according to claim 5, characterized in that: The telescopic rod (10) is equipped with a third magnet (26) on its outer side, and the outer side of the third magnet (26) is equipped with a fourth magnet (27). A row of fourth magnets (27) is set on the inner wall of the processing cover (5), and the row of fourth magnets (27) is set at equal intervals. The third magnet (26) and the fourth magnet (27) have the same magnetic poles.

7. The aluminum sheet and strip winding equipment according to claim 1, characterized in that: The front side of the movable frame (12) is provided with a second magnet (24), and the bottom of the second magnet (24) is provided with a first magnet (23), and the upper surface of a row of collection trays (18) is provided with a first magnet (23).

8. The aluminum sheet and strip winding equipment according to claim 7, characterized in that: The inner wall of the processing cover (5) is rotatably mounted with a steel air pipe (17) by a torsion spring (28), and a row of collection trays (18) are evenly spaced on the outer surface of the steel air pipe (17). The steel air pipe (17) is connected to a storage box (7) through a pipeline. A first magnet (23) is provided on the upper surface of the row of collection trays (18), wherein the magnetic poles of the first magnet (23) and the second magnet (24) are opposite.

9. The aluminum sheet and strip winding equipment according to claim 3, characterized in that: The collection frame (8) is provided with a force plate (30) inside, and a lifting rod (20) is provided above the force plate (30). The lifting rod (20) is slidably installed inside the collection frame (8) by a second return spring (31), wherein the top end of the lifting rod (20) extends through to the inside of the processing cover (5).

10. An aluminum sheet and strip winding device according to claim 8, characterized in that: An eccentric wheel (19) is installed at the left end of the steel air pipe (17), and a lifting rod (20) is located below the eccentric wheel (19). The diameter of the eccentric wheel (19) is larger than the diameter of the steel air pipe (17), and the top of the lifting rod (20) is arc-shaped.

Images