Tank body curled edge composite forming device of tinplate can

Abstract

The invention relates to the technical field of copper can hemming, in particular to a can body hemming composite forming device of a tinplate can. The edge curling device comprises a workbench, edge curling assemblies are arranged in moving frames, a rotating disc is arranged between the moving frames, a mold is arranged on the surface of the rotating disc, a tank is inserted into the mold to be limited, a trimming assembly is arranged at the bottom of a base plate, and an adsorption assembly is arranged below the base plate. Compression springs arranged at the bottom of the moving frame slide on the inner walls of the sliding grooves, so that the moving frame drives the rollers to move towards the two sides, when the outer diameter distance between the rollers is the same as that of the inner wall of the tank body, a push rod at the end of a second telescopic rod is controlled to stop pushing, and when the rollers are attached to the hemming position of the tank body, the second telescopic rod stops pushing. Due to the fact that the quadrant position of the outer wall of the roller is attached to the diameter of the inner wall of the can body, the inner wall of the turned edge of the can body in the rotating process is extruded through the roller, and therefore the sunken position of the turned edge of the can body can be rapidly adjusted and reset.

Description

Technical Field

[0001] The invention relates to the technical field of copper can curling, in particular to a can body curling composite molding device for a horse mouth can. Background Art

[0002] In the packaging industry, cans are widely used in food, beverage, chemical and other fields due to their good sealing, mechanical strength and excellent protection of the contents. The can body curling is a key link in the manufacturing process of cans, which directly affects the quality, sealing and appearance of the can body.

[0003] There are many existing technologies for crimping devices, such as: Chinese Patent Publication No. CN114210865A discloses an integrated film coating and curling forming device based on iron can manufacturing, including a workbench, a bearing seat is arranged at the middle of the left side of the end of the workbench, a driving shaft is rotatably installed inside the bearing seat, an adapter plate is arranged at the end of the driving shaft, a loading plate is installed at the end of the adapter plate, a curling assembly is arranged on the right side of the end of the workbench, and a film coating assembly is arranged on the left front side of the end of the workbench, the iron can can be positioned and clamped by the positioning plate, so that the iron can has high stability during the curling process, the curling work of the iron can can be simple and convenient by the curling assembly, the curling roller can be regulated conveniently by the curling cylinder, so that the curling efficiency and quality of the iron can are good, the film coating spraying angle of the film coating nozzle can be simply and conveniently regulated by the regulating cylinder, and the film coating nozzle can be coated during the curling process of the iron can, so that the curling coating efficiency of the iron can is high.

[0004] However, there are still some problems in actual use: 1. During the use of the traditional hemming device, when the hemming roller performs the extrusion and hemming operation on the can body, the hemming position is very easy to deform and bend due to the lack of a stable and reliable support system and a precise positioning mechanism. Once the hemming part is deformed, the hemming part and the can body cannot be kept on the same axis. This deviation has a very bad impact on the subsequent processing flow. For example, in the process of welding and sealing the can body, the axis deviation of the hemming part will cause the welding position of the cap to shift, the weld will be loose, and the sealing of the can body will be greatly reduced; 2. When the tank is ready for curling, there are often many burrs on its surface. At present, the burr cleaning method mainly relies on manual pretreatment. However, even if the operator is extremely careful during manual operation, some burrs will inevitably fall into the tank during the cleaning process. This requires the operator to spend a lot of extra time and energy after the curling is completed, and use professional tools to carefully clean the burrs in the tank. This additional cleaning work greatly increases the labor intensity of the operation.

[0005] In view of this, we propose a can body curling composite molding device for a can. Summary of the invention

[0006] The object of the present invention is to provide a can body curling composite molding device for a can to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention aims to provide a can body curling composite molding device for a can, comprising a workbench, an electric guide rail is provided on the surface of the workbench, movable frames are provided on both sides of the surface of the electric guide rail, a curling assembly is provided inside the movable frame, a turntable is provided between the movable frames, a mold is provided on the surface of the turntable, the can body is inserted into the mold for limiting, a column is provided above the workbench, a cylinder is provided on the top of the column, a base plate is provided on the piston rod at the end of the cylinder, a trimming assembly is provided at the bottom of the base plate, the trimming assembly is used to trim the inner wall of the can body curling after the can body curling is completed, and an adsorption assembly is provided under the base plate.

[0008] As a further improvement of the technical solution, a fixing column is provided at the bottom of the base plate, and a pressure plate is provided at the bottom of the fixing column, and the pressure plate is tightly fitted with the bottom of the tank body.

[0009] As a further improvement of the present technical solution, the curling assembly includes a servo motor arranged on the top of the movable frame, the output shaft of the servo motor passes through the movable frame and a screw rod is provided at the end, a moving block is provided on the surface of the screw rod, and when the screw rod rotates, it drives the moving block provided on its surface to move in a vertical direction, and a curling roller is provided at the end of the moving block.

[0010] As a further improvement of the technical solution, a scraper is provided on the side away from the curling roller, and the scraper is used to scrape the top of the rotating tank body to remove burrs.

[0011] As a further improvement of the present technical solution, the trimming assembly includes a first telescopic rod provided at the bottom of the base plate, a movable seat provided at the bottom of the first telescopic rod, the movable seat moves in a vertical direction outside the fixed column, a sliding groove is provided on the surface of the movable seat, a sliding plate is provided on the inner wall of the sliding groove for sliding, and a compression spring is provided between the sliding groove and the sliding plate.

[0012] As a further improvement of the present technical solution, a movable frame is provided at the end of the slide plate, a roller is provided inside the movable frame, and the roller protrudes out of the movable frame. The movable slide plate slides on the inner wall of the slide groove so that the roller provided inside the movable frame end fits with the inner wall of the tank body.

[0013] As a further improvement of the technical solution, a second telescopic rod is provided at the end of the movable seat, and the end of the second telescopic rod is in contact with the top of the movable frame, and the second telescopic rod is controlled to push the movable frame to move in the horizontal direction.

[0014] As a further improvement of the present technical solution, the adsorption assembly includes a main belt shaft arranged on the top of the pressure plate, an extension rod is provided on one side of the fixed column, a secondary belt shaft is provided at the bottom of the extension rod, and a transmission belt is provided between the main belt shaft and the secondary belt shaft.

[0015] As a further improvement of the technical solution, an eccentric wheel is provided at the bottom of the secondary belt shaft, and an electric suction cup is provided at the bottom of the eccentric wheel. The electric suction cup rotates in the gap between the pressure plate and the tank body, and the electric suction cup is used to absorb burrs and impurities.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the can body curling composite molding device of the can, the base plate is driven to move downward in the vertical direction by controlling the air cylinder. During the movement of the base plate, the fixed column drives the pressure plate to fit closely with the bottom of the can body and fix it. When the turntable drives the mold to rotate, the pressure plate limits the bottom of the can body, so that the can body and the mold rotate synchronously. At the same time, the can body is subjected to the pressure of the pressure plate, so that the stability of the can body is increased, and the can body is prevented from being unstable due to the force applied to the can body during the curling process, thereby improving the safety of the can body curling operation.

[0017] 2. In the can body curling composite forming device of the can, the push rod at the end of the second telescopic rod is controlled to push the moving frame, and the compression spring at the bottom of the moving frame slides on the inner wall of the slide groove, so that the moving frame drives the rollers to move to both sides. When the outer diameter distance between the rollers is the same as the inner wall of the can, the push rod at the end of the second telescopic rod is controlled to stop pushing. Since a compression spring is provided between the slide groove and the slide plate, when the push rod at the end of the second telescopic rod stops moving, the moving frame is subjected to the pulling force of the compression spring, thereby preventing the roller from continuing to move due to inertia. When the roller fits the curling of the can body, the quadrant position of the outer wall of the roller fits the inner wall diameter of the can body, and the roller squeezes the inner wall of the curling of the rotating can body, thereby quickly adjusting and resetting the concave part of the curling of the can body.

[0018] 3. In the can body curling composite forming device of the can, when the bottom of the pressure plate is rotated by friction, since the main belt shaft is provided on the surface of the pressure plate, the main belt shaft rotates coaxially with the pressure plate. When the main belt shaft rotates, it drives the secondary belt shaft through the transmission belt to transmit. When the secondary belt shaft rotates, it drives the eccentric wheel provided at the bottom to do eccentric movement. Its movement trajectory is no longer limited to a fixed circle, but can cover a larger area, so that the burr impurities in the gap between the pressure plate and the can body can be more comprehensively adsorbed, which can effectively expand the adsorption range and reduce the labor intensity of operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2It is a cross-sectional view of the overall structure of the present invention; Figure 3 For the present invention Figure 2 Schematic diagram of point A; Figure 4 It is a schematic diagram of the substrate structure of the present invention; Figure 5 It is a schematic diagram of the structure of the crimping assembly of the present invention; Figure 6 It is a schematic diagram of the structure of the trimming assembly of the present invention; Figure 7 For the present invention Figure 6 Schematic diagram of point B; Figure 8 It is a schematic diagram of the structure of the adsorption component of the present invention.

[0020] The meaning of each number in the figure is: 100, workbench; 101, electric guide rail; 102, mobile rack; 103, turntable; 104, mold; 200, column; 201, cylinder; 202, base plate; 203, fixed column; 204, pressure plate; 300, curling assembly; 301, servo motor; 302, lead screw; 303, moving block; 304, curling roller; 305, scraper; 400, trimming assembly; 401, first telescopic rod; 402, slide groove; 403, slide plate; 404, moving frame; 405, roller; 406, compression spring; 407, second telescopic rod; 500, adsorption assembly; 501, main belt shaft; 502, secondary belt shaft; 503, transmission belt; 504, eccentric wheel; 505, electric suction cup. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] The purpose of this embodiment is to provide a can body curling composite molding device for a can, see Figure 1-Figure 8 As shown, it includes a workbench 100, an electric guide rail 101 is provided on the surface of the workbench 100, moving frames 102 are provided on both sides of the surface of the electric guide rail 101, a curling assembly 300 is provided inside the moving frame 102, a turntable 103 is provided between the moving frames 102, a mold 104 is provided on the surface of the turntable 103, the can body is inserted into the mold 104 for limiting, a column 200 is provided above the workbench 100, a cylinder 201 is provided on the top of the column 200, a base plate 202 is provided on the piston rod at the end of the cylinder 201, a trimming assembly 400 is provided at the bottom of the base plate 202, the trimming assembly 400 is used to trim the inner wall of the can body curling after the can body curling is completed, and an adsorption assembly 500 is provided below the base plate 202.

[0024] By controlling the push rod at the end of the second telescopic rod 407 to push the moving frame 404, the compression spring 406 provided at the bottom of the moving frame 404 slides on the inner wall of the slide groove 402, so that the moving frame 404 drives the roller 405 to move to both sides. When the outer diameter distance between the rollers 405 is the same as the inner wall of the tank body, the push rod at the end of the second telescopic rod 407 is controlled to stop pushing. Since a compression spring 406 is provided between the slide groove 402 and the slide plate 403, when the push rod at the end of the second telescopic rod 407 stops moving, the moving frame 404 is pulled by the compression spring 406 to prevent the roller 405 from continuing to move due to inertia. When the roller 405 is in contact with the curling of the tank body, the quadrant position of the outer wall of the roller 405 is in contact with the inner wall diameter of the tank body, the inner wall of the curling of the rotating tank body is squeezed by the roller 405, thereby quickly adjusting and resetting the concave part of the curling of the tank body.

[0025] Considering that when the can body is placed inside the mold 104, when the turntable 103 drives the mold 104 to rotate, the can body is curled by the force of the curling roller 304, and the can body is easily flew out due to uneven force, causing safety hazards. Therefore, a fixed column 203 is provided at the bottom of the base plate 202, and a pressure plate 204 is provided at the bottom of the fixed column 203. The pressure plate 204 fits tightly with the bottom of the can body. When curling the can body, the can body is placed inside the mold 104, and the base plate 202 is driven to move downward in the vertical direction by controlling the cylinder 201. During the movement of the base plate 202, the fixed column 203 drives the pressure plate 204 to fit tightly with the bottom of the can body and fix it. When the turntable 103 drives the mold 104 to rotate, the pressure plate 204 limits the bottom of the can body, so that the can body and the mold 104 rotate synchronously. At the same time, the can body is subjected to the pressure of the pressure plate 204, so that the stability of the can body is increased, and the instability of the can body caused by the force applied to the can body during the curling process is avoided, thereby improving the safety of the can body curling operation.

[0026] When the can body is curled, due to the different diameters of the can body during production, in order to improve the practicability of the device, when the can bodies of different sizes are curled quickly, the curling assembly 300 includes a servo motor 301 arranged on the top of the moving frame 102, the output shaft of the servo motor 301 passes through the moving frame 102 and a screw rod 302 is arranged at the end, and a moving block 303 is arranged on the surface of the screw rod 302. When the screw rod 302 rotates, it drives the moving block 303 arranged on its surface to move in a vertical direction, and a curling roller 304 is arranged at the end of the moving block 303. When the curling operation is required, the moving block 303 is controlled to move in a vertical direction. The frame 102 moves on the surface of the electric guide rail 101, and the curling roller 304 is adjusted according to the height of the can body. The output end of the servo motor 301 is controlled to drive the screw rod 302 to rotate. When the screw rod 302 rotates, it drives the moving block 303 to move in the vertical direction, so that the curling roller 304 provided at the end of the moving block 303 moves to the top of the can body. When curling is required, the turntable 103 drives the can body placed inside the mold 104 to rotate, and the curling roller 304 moves downward along the top of the can body, so that curling operations are performed according to different can body heights, thereby improving the practicability of the device.

[0027] During the curling process, burrs will interfere with the uniform pressure of the curling roller 304 on the edge of the can body, resulting in uneven curling thickness and irregular shape, affecting the sealing and structural stability of the curling. Therefore, a scraper 305 is provided on the side away from the curling roller 304. The scraper 305 is used to scrape the top of the rotating can body to remove burrs. Before curling the can body, the scraper 305 is controlled to move to the surface of the can body. When the can body rotates, the scraper 305 scrapes the burrs on the surface of the can body to remove the burrs, thereby ensuring the sealing and stability of the can body during curling.

[0028] Considering that when the outer edge of the tank body is curled, the supporting force near the curled edge of the tank body is small. When the bottom of the tank body is forced to flip outward, the side wall of the tank body is easily squeezed and deformed, causing the curled edge to sag toward the center of the tank body, affecting the later use effect of the tank body. Therefore, the trimming component 400 includes a first telescopic rod 401 arranged at the bottom of the base plate 202, a movable seat is arranged at the bottom of the first telescopic rod 401, and the movable seat moves in a vertical direction outside the fixed column 203. A slide groove 402 is opened on the surface of the movable seat, and a slide plate 403 is slidingly arranged on the inner wall of the slide groove 402, and a compression spring is arranged between the slide groove 402 and the slide plate 403 406, a moving frame 404 is provided at the end of the slide plate 403, and a roller 405 is provided inside the moving frame 404, and the roller 405 protrudes from the inside of the moving frame 404. The moving slide plate 403 slides on the inner wall of the slide groove 402, so that the roller 405 provided inside the end of the moving frame 404 fits with the inner wall of the tank body, and a second telescopic rod 407 is provided at the end of the moving seat, and the end of the second telescopic rod 407 fits with the top of the moving frame 404. The second telescopic rod 407 is controlled to push the moving frame 404 to move in the horizontal direction. When the curling of the tank body is completed, the first telescopic rod 401 is controlled to drive the moving seat to move in the vertical direction to the curling position. By controlling the second telescopic rod 407, the moving seat is moved to the vertical direction. The push rod at the end of the second telescopic rod 407 pushes the moving frame 404, and the compression spring 406 provided at the bottom of the moving frame 404 slides on the inner wall of the slide groove 402, so that the moving frame 404 drives the roller 405 to move to both sides. When the outer diameter distance between the rollers 405 is the same as the inner wall of the tank, the push rod at the end of the second telescopic rod 407 is controlled to stop pushing. Since a compression spring 406 is provided between the slide groove 402 and the slide plate 403, when the push rod at the end of the second telescopic rod 407 stops moving, the moving frame 404 is pulled by the compression spring 406 to prevent the roller 405 from continuing to move due to inertia. When the wheel 405 is in contact with the curled edge of the tank body, since the quadrant position of the outer wall of the roller wheel 405 is in contact with the inner wall diameter of the tank body, when the tank body is rotating, the roller wheel 405 squeezes the inner wall of the curled edge of the tank body, thereby quickly adjusting and resetting the concave part of the curled edge of the tank body, so that the curled edge of the tank body and the tank body as a whole maintain the same verticality, thereby improving the later use effect of the tank body. When the adjustment of the curled edge position of the tank body is completed, the push rod at the end of the second telescopic rod 407 is reset. At this time, the slide plate 403 is subjected to the force of the compression spring 406, driving the moving frame 404 to reset, thereby facilitating the trimming and resetting of the tank body placed later.

[0029] Considering that when removing the burrs on the curled edge of the tank body, some burrs will fall into the inside of the tank body, in order to facilitate the rapid removal of the burrs, the operator needs to invert the curled edge of the tank body to remove the burrs, which increases the labor intensity of the operator. Therefore, the adsorption component 500 includes a main belt shaft 501 arranged on the top of the pressure plate 204, an extension rod is arranged on one side of the fixed column 203, a secondary belt shaft 502 is arranged at the bottom of the extension rod, a transmission belt 503 is arranged between the main belt shaft 501 and the secondary belt shaft 502, an eccentric wheel 504 is arranged at the bottom of the secondary belt shaft 502, and an electric suction cup 505 is arranged at the bottom of the eccentric wheel 504. The electric suction cup 505 rotates in the gap between the pressure plate 204 and the tank body. The electric suction cup 505 is used to absorb burr impurities. When the bottom of the pressure plate 204 is rotated at the bottom of the fixed column 203 due to the friction force, since the main belt shaft 501 is provided on the surface of the pressure plate 204, the main belt shaft 501 rotates coaxially with the pressure plate 204. When the main belt shaft 501 rotates, it drives the secondary belt shaft 502 through the transmission belt 503 for transmission. When the secondary belt shaft 502 rotates, it drives the eccentric wheel 504 provided at the bottom thereof to do eccentric movement. Its movement trajectory is no longer limited to a fixed circle, but can cover a larger area. In this way, the burr impurities in the gap between the pressure plate 204 and the tank body can be more comprehensively absorbed, which can effectively expand the absorption range and improve the absorption effect on burrs.

[0030] When in use, the can body is placed inside the mold 104, and the base plate 202 is driven to move downward in the vertical direction by controlling the air cylinder 201. During the movement of the base plate 202, the fixed column 203 drives the pressure plate 204 to fit closely with the bottom of the can body and fix it. When the turntable 103 drives the mold 104 to rotate, the pressure plate 204 limits the bottom of the can body, so that the can body and the mold 104 rotate synchronously. At the same time, the can body is subjected to the pressure of the pressure plate 204, so that the stability of the can body is increased, and the can body is prevented from being unstable due to the force applied to the can body during the hemming process, thereby improving the safety of the can body hemming operation; The scraper 305 scrapes the top of the rotating can body to remove burrs. Before curling the can body, the scraper 305 is controlled to move to the surface of the can body. When the can body rotates, the scraper 305 scrapes the burrs on the surface of the can body to remove the burrs. The output end of the servo motor 301 is controlled to drive the screw rod 302 to rotate. When the screw rod 302 rotates, it drives the moving block 303 to move in the vertical direction, so that the curling roller 304 provided at the end of the moving block 303 moves to the top of the can body. When curling is required, the turntable 103 drives the can body placed inside the mold 104 to rotate, and the curling roller 304 moves downward close to the top of the can body, so that the curling operation is performed according to different can body heights, thereby improving the practicality of the device; When the curling of the tank body is completed, the first telescopic rod 401 is controlled to drive the moving seat to move to the curling position in the vertical direction, and the push rod at the end of the second telescopic rod 407 is controlled to push the moving frame 404. The compression spring 406 provided at the bottom of the moving frame 404 slides on the inner wall of the slide groove 402, so that the moving frame 404 drives the rollers 405 to move to both sides. When the outer diameter distance between the rollers 405 is the same as the inner wall of the tank body, the push rod at the end of the second telescopic rod 407 is controlled to stop pushing. Since a compression spring 406 is provided between the slide groove 402 and the slide plate 403, when When the push rod at the end of the second telescopic rod 407 stops moving, the moving frame 404 is pulled by the compression spring 406 to prevent the roller 405 from continuing to move due to inertia. When the roller 405 fits the curling edge of the tank body, the quadrant position of the outer wall of the roller 405 fits the inner wall diameter of the tank body. Therefore, when the tank body is rotating, the inner wall of the curling edge of the tank body is squeezed by the roller 405, so as to quickly adjust and reset the concave part of the curling edge of the tank body, so that the curling edge of the tank body and the whole tank body maintain the same verticality, thereby improving the use effect of the tank body in the later stage. When the bottom of the pressure plate 204 is rotated at the bottom of the fixed column 203 due to the friction force, since the main belt shaft 501 is provided on the surface of the pressure plate 204, the main belt shaft 501 rotates coaxially with the pressure plate 204, and the main belt shaft 501 drives the secondary belt shaft 502 for transmission through the transmission belt 503 when rotating, and the secondary belt shaft 502 drives the eccentric wheel 504 provided at its bottom to do eccentric movement when rotating, and its movement trajectory is no longer limited to a fixed circle, but can cover a larger area, so that the burr impurities in the gap between the pressure plate 204 and the tank body can be more comprehensively adsorbed, which can effectively expand the adsorption range, effectively improve the burr adsorption effect, and reduce the labor intensity of operators.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A can body curling composite molding device for a can, characterized in that: It includes a workbench, the surface of the workbench is provided with an electric guide rail, both sides of the electric guide rail surface are provided with moving frames, a curling assembly is provided inside the moving frames, a turntable is provided between the moving frames, a mold is provided on the surface of the turntable, the tank body is inserted into the mold for limiting, a column is provided above the workbench, a cylinder is provided on the top of the column, a base plate is provided on the piston rod at the end of the cylinder, a trimming assembly is provided at the bottom of the base plate, the trimming assembly is used to trim the inner wall of the tank body curling after the tank body curling is completed, and an adsorption assembly is provided under the base plate.

2. The can body curling composite molding device of the can according to claim 1, characterized in that: A fixing column is arranged at the bottom of the base plate, and a pressure plate is arranged at the bottom of the fixing column, and the pressure plate is closely fitted with the bottom of the tank body.

3. The can body curling composite molding device of the can according to claim 1, characterized in that: The curling assembly includes a servo motor arranged on the top of the moving frame. The output shaft of the servo motor passes through the moving frame and a screw rod is provided at the end. A moving block is provided on the surface of the screw rod. When the screw rod rotates, it drives the moving block provided on its surface to move in a vertical direction. A curling roller is provided at the end of the moving block.

4. The can body curling composite molding device of the can according to claim 3, characterized in that: A scraper is provided on the side away from the curling roller, and the scraper is used to scrape the top of the rotating tank body to remove burrs.

5. The can body curling composite molding device of the can according to claim 1, characterized in that: The trimming assembly includes a first telescopic rod arranged at the bottom of the base plate, a movable seat is arranged at the bottom of the first telescopic rod, the movable seat moves in a vertical direction outside the fixed column, a sliding groove is opened on the surface of the movable seat, a sliding plate is slidingly arranged on the inner wall of the sliding groove, and a compression spring is arranged between the sliding groove and the sliding plate.

6. The can body curling composite molding device of the can according to claim 5, characterized in that: A moving frame is provided at the end of the slide plate, and a roller is provided inside the moving frame. The roller protrudes from the moving frame, and the moving slide plate slides on the inner wall of the slide groove, so that the roller provided inside the moving frame end fits with the inner wall of the tank body.

7. The can body curling composite molding device of the can according to claim 5, characterized in that: A second telescopic rod is arranged at the end of the moving seat, and the end of the second telescopic rod is in contact with the top of the moving frame, and the second telescopic rod is controlled to push the moving frame to move in the horizontal direction.

8. The can body curling composite molding device of the can according to claim 2, characterized in that: The adsorption component includes a main belt shaft arranged on the top of the pressure plate, an extension rod is arranged on one side of the fixed column, a secondary belt shaft is arranged at the bottom of the extension rod, and a transmission belt is arranged between the main belt shaft and the secondary belt shaft.

9. The can body curling composite molding device of the can according to claim 8, characterized in that: An eccentric wheel is arranged at the bottom of the secondary belt shaft, and an electric suction cup is arranged at the bottom of the eccentric wheel. The electric suction cup rotates in the gap between the pressure plate and the tank body, and the electric suction cup is used to absorb burrs and impurities.

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