An automatic tank body forming machine

Abstract

The present application discloses an automatic tank body forming machine, which relates to the technical field of metal container processing. An automatic tank body forming machine includes a frame, on which there are a loading and unloading station, a stretching station and a material receiving station; the stretching station includes a bearing mechanism arranged on the frame, the bearing mechanism is used for placing a metal disc, and the frame is also provided with a driving mechanism, a sliding block and a pressing and stretching head, the driving mechanism, the sliding block and the pressing and stretching head are connected in sequence, and the driving mechanism is used for driving the pressing and stretching head to move through the sliding block so as to press and stretch the metal disc into a tank body. The present application can stretch out the tank body first quickly and then slowly.

Description

Technical Field

[0001] This application relates to the technical field of metal container processing, and in particular, to an automatic tank body forming machine. Background Art

[0002] Metal cans are a common type of packaging container, which are made of metal and are commonly used for storing and transporting various products. They usually have a strong structure, good sealing performance, and a long service life. Metal cans can be classified into circular, square, special-shaped cans, etc. according to their shapes, or can be classified into food can series, gift can series, chemical can series, etc. according to their usage environments. Typically, the metal cans currently used for storing aerosols usually have a circular cross-section.

[0003] In the manufacturing process of such metal cans, the can lids and can bodies need to be produced separately and then finally assembled together to form a complete metal can. Specifically, in the manufacturing of the can body, the pre-prepared blank is usually a metal disc, and then the metal disc needs to go through processes such as pressing and stretching, precision trimming, inspection, and surface treatment in sequence to obtain the finished product. Among them, in the pressing and stretching process, the currently mainly used punching tool is hydraulically driven. The process of pressing the metal disc by the punching tool is the process of stretching the metal disc, and the hydraulic system is used to quickly complete the production of the can body.

[0004] In order to ensure that the metal can can store more aerosols and has a lighter weight, the current can body tends to be designed in a longer and thinner wall thickness style. When such a can body is produced using the existing hydraulic punching tools, during the rapid stretching process of the can body, as the can body becomes longer and longer, the wall thickness of the can body will change from large to small. When the wall thickness changes, the stretching speed of the can body remains unchanged. The thinner can body may be torn under such rapid stretching, and the uncontrollable stretching speed may lead to product scrapping. In this regard, producers hope that the action of stretching out the can body can be fast first and then slow to prevent the above-mentioned tearing phenomenon as much as possible. Summary of the Invention

[0005] In order to be able to stretch out the can body fast first and then slow, this application provides an automatic tank body forming machine.

[0006] The automatic tank body forming machine provided by this application adopts the following technical solutions:

[0007] An automatic tank body forming machine, including a frame, on which there are a loading and unloading station, a stretching station, and a receiving station;

[0008] The stretching station includes a bearing mechanism arranged on a frame, the bearing mechanism is used to place the metal disc, and the frame is also provided with a feeding mechanism, a sliding block and a pressing and stretching head, the feeding mechanism, the sliding block and the pressing and stretching head are connected in sequence, and the feeding mechanism is used to drive the pressing and stretching head to move through the sliding block so as to press and stretch the metal disc into a can body;

[0009] The feeding mechanism includes a box body arranged on the frame, the box body is equipped with a first feeding rotation component, the first feeding rotation component is connected to the installation box; the installation box is equipped with a second feeding rotation component, the second feeding rotation component is connected to a rotating disk, the rotating axis of the rotating disk deviates from the rotating axis of the installation box; the rotating disk is eccentrically connected to a linkage arm, and the linkage arm is rotatably connected to the sliding block at one end away from the rotating disk; the first feeding rotation component is used to drive the installation box to rotate, thereby driving the sliding block to move quickly through the linkage arm, and the second feeding rotation component is used to drive the rotating disk to rotate, thereby driving the sliding block to move slowly through the linkage arm.

[0010] By adopting the above technical solution, firstly, the metal disc is placed on the supporting mechanism using the upper and lower workstations, and then the first feeding and rotating assembly is driven to drive the installation box to rotate, thereby driving the sliding block and the pressing and stretching head to move quickly through the linkage arm to perform the first stage of can body stretching, and then the second feeding and rotating assembly is driven to drive the rotating disk to rotate, thereby driving the sliding block and the pressing and stretching head to move slowly through the linkage arm to perform the second stage of can body stretching. Based on the above actions, the can body can be stretched out first quickly and then slowly, thereby preventing the occurrence of cracking during can body stretching as much as possible.

[0011] Preferably, the first feeding and rotating assembly includes a worm gear and a rotating shaft rotatably connected to the box body, a worm wheel 1 is mounted on the rotating shaft 1 and the rotating shaft 1 and the worm wheel 1 can rotate synchronously, the worm gear 1 and the worm wheel 1 are meshed, and the worm gear and the worm 1 can be self-locking, and the box body is also equipped with a feeding and rotating part connected to the worm gear 1, and the rotating shaft 1 extends outside the installation box and is connected to the installation box.

[0012] By adopting the above technical solution, driving the rotating part 1 can drive the worm 1, the worm wheel 1, the rotating shaft and the installation box to rotate, thereby driving the sliding block to move through the linkage arm; the self-locking characteristics of the worm wheel and the worm 1 can ensure that the installation box will not malfunction as a power input end.

[0013] Preferably, the second feeding and rotating assembly includes a worm gear 2 and a rotating shaft 2 rotatably connected to the mounting box, the rotating shaft 2 is rotatably mounted with a worm wheel 2, the worm gear 2 and the worm wheel 2 are meshed, and the worm gear 2 and the worm wheel 2 can be self-locking, and the mounting box is mounted with a feeding and rotating member 2 connected to the worm gear 2, the worm wheel 2 is connected to the rotating disk, and the worm wheel 2 and the rotating disk can rotate synchronously.

[0014] By adopting the above technical solution, driving the second driving and rotating part can drive the second worm, the second worm gear and the second rotating shaft to rotate, thereby driving the rotating disc to rotate, and then driving the sliding block to move through the linkage arm; the self-locking characteristics of the second worm and the second worm gear can ensure that the rotating disc will not move mistakenly as a power input end.

[0015] Preferably, the loading mechanism includes a height-adjusting component arranged on the frame and a loading and forming column connected to the height-adjusting component. A secondary pressing component for cooperating with the pressing and stretching head to complete the stretching of the metal disc is also arranged on the height-adjusting component on one side of the loading and forming column; when the metal disc is stretched, the pressing and stretching head and the secondary pressing component are respectively located on both sides of the metal disc.

[0016] By adopting the above technical solution, when the pressing and stretching head presses on the metal disc, the secondary pressing component will cooperate to press the metal disc tightly. As the pressing and stretching head moves, the metal disc will be stretched into a can body under the action of the loading and forming column.

[0017] Preferably, the height-adjusting component includes a reciprocating feeding part connected to the frame. An installation frame is connected to the reciprocating feeding part. The installation frame is slidably connected to the frame, and the loading and forming column is installed on the installation frame.

[0018] By adopting the above technical solution, driving the reciprocating part can drive the installation frame to move, thereby driving the loading and forming column to move to adjust the stamping depth of the pressing and stretching head on the metal disc, that is, to adjust the length of the can body being stretched.

[0019] Preferably, the secondary pressing component includes a secondary pressing ring. The secondary pressing ring is connected with a sliding column. A sliding hole is formed on the installation frame, and the sliding column is slidably connected to the sliding hole; a connecting plate is arranged on the sliding column, and a spring is installed on the connecting plate. One end of the spring away from the connecting plate is connected to the installation frame; when the pressing and stretching head presses the metal disc, the secondary pressing ring moves and the spring is compressed.

[0020] By adopting the above technical solution, when the pressing and stretching head presses the metal disc, the movement of the pressing and stretching head is synchronized with the movement of the secondary pressing ring. The pressing and stretching head and the secondary pressing ring can ensure the stability of the metal disc during stretching as much as possible. At this time, the spring will be compressed, and the spring will provide a force for the secondary pressing ring to press on the metal disc.

[0021] Preferably, the loading and unloading station includes a first frame arranged on the frame. A vertical reciprocating part is installed on the first frame. The vertical reciprocating part is connected with a horizontal reciprocating part. The horizontal reciprocating part is connected with a loading suction cup and an unloading suction cup.

[0022] By adopting the above technical solution, driving the vertical reciprocating part and the horizontal reciprocating part can drive the loading suction cup and the unloading suction cup to move rhythmically to efficiently complete the loading of the metal disc and the unloading of the can body.

[0023] Preferably, the material receiving station comprises a frame body 2 arranged on the frame, a belt conveyor mechanism is installed on the frame body 2, a material receiving piece is installed on the belt conveyor mechanism, and the material receiving piece comprises a concave material receiving groove on the wall surface.

[0024] By adopting the above technical solution, the driving belt transmission mechanism can drive the material receiving piece to move, that is, the material receiving trough to move. When the material receiving piece moves, the loading and unloading stations can be used to conveniently place the manufactured can bodies one by one in the material receiving trough for collection.

[0025] Preferably, a dovetail-shaped slide groove is provided on the frame, the sliding block is a dovetail-shaped slider, and the dovetail-shaped slider is slidably connected to the dovetail-shaped slide groove.

[0026] In summary, the present invention includes at least one of the following beneficial technical effects:

[0027] 1. First, place the metal disc on the bearing mechanism using the upper and lower workstations, then drive the first feed and rotation assembly to drive the installation box to rotate, thereby driving the sliding block and the pressing and stretching head to move quickly through the linkage arm to perform the first stage of can body stretching, and then drive the second feed and rotation assembly to drive the rotating disk to rotate, thereby driving the sliding block and the pressing and stretching head to move slowly through the linkage arm to perform the second stage of can body stretching. Based on the above actions, the can body can be stretched out first quickly and then slowly, and the occurrence of cracking during can body stretching can be prevented as much as possible;

[0028] 2. When the pressing and stretching head presses the metal disc, the movement of the pressing and stretching head is synchronized with the movement of the auxiliary pressure ring. The pressing and stretching head and the auxiliary pressure ring can ensure the stability of the metal disc when it is stretched as much as possible. At this time, the spring will be compressed, and the spring will provide the auxiliary pressure ring with force to press against the metal disc. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the overall structure of an automatic can forming machine in an embodiment of the present application;

[0030] Figure 2 It is a structural diagram used to reflect the loading and unloading stations;

[0031] Figure 3 It is a structural schematic diagram used to reflect the stretching station;

[0032] Figure 4 is a cross-sectional view for illustrating the first rotation assembly;

[0033] Figure 5 It is a structural schematic diagram for reflecting the pin block.

[0034] Labels in the attached drawings: 1, frame; 2, loading and unloading station; 21, first frame body; 22, vertical reciprocating member; 23, horizontal reciprocating member; 24, loading suction cup; 25, unloading suction cup; 26, supporting plate; 3, stretching station; 31, bearing mechanism; 311, height-adjusting assembly; 3111, reciprocating driving member; 3112, mounting frame; 31121, sliding hole; 312, bearing and forming column; 313, auxiliary pressing assembly; 3131, auxiliary pressing ring; 3132, sliding column; 3133, connecting plate; 3134, spring; 32, driving mechanism; 321, box body; 322, first rotating assembly; 3221, first worm; 3222, first rotating shaft; 3223, first worm gear; 3224, first rotating member; 323, mounting box; 3231, first groove; 3232, second groove; 324, second rotating assembly; 3241, second worm; 3242, second rotating shaft; 3243, second worm gear; 3244, second rotating member; 325, rotating disk; 3251, pin slot; 326, linkage arm; 33, sliding block; 34, pressing and stretching head; 35, material collecting member; 351, material collecting groove; 4, material collecting station; 41, second frame body; 42, belt conveyor mechanism; 5, guiding block; 51, pin block; 52, docking hole; 53, adjusting column; 54, rotating member. Detailed implementation manners

[0035] The present invention will be further described in detail below with reference to the attached drawings.

[0036] In the description of the present invention, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the attached drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0037] The embodiment of the present application discloses an automatic can body forming machine. It is used to control the speed of stretching a metal disc into a can body, for example, stretching first quickly and then slowly. In this embodiment, the can body of a cylindrical aerosol can is taken as an example.

[0038] Refer to Figure 1 , an automatic can body forming machine includes a frame 1, and a loading and unloading station 2, a stretching station 3 and a material collecting station 4 are successively arranged on the frame 1 from right to left.

[0039] The prepared metal disc is placed on the stretching station 3 by using the loading and unloading station 2. The stretching station 3 stretches the metal disc into a can body, and then the can body on the stretching station 3 is moved and placed on the material collecting station 4 by using the loading and unloading station 2 again, and the can bodies are collected at the material collecting station 4.

[0040] Refer to Figure 1 andFigure 2 The loading and unloading station 2 includes a first frame 21 provided on the frame 1. A vertical reciprocating member 22 is installed on the first frame 21. The vertical reciprocating member 22 is connected to a horizontal reciprocating member 23. Both the vertical reciprocating member 22 and the horizontal reciprocating member 23 are cylinders. The horizontal reciprocating member 23 is connected to a loading suction cup 24 and an unloading suction cup 25. Among them, in order to meet the grasping requirements, multiple loading suction cups 24 are provided. The first frame 21 is also connected to a supporting plate 26 for stacking and placing metal discs.

[0041] Stack multiple metal discs on the supporting plate 26 in advance, and drive the vertical reciprocating member 22 and the horizontal reciprocating member 23 to drive the loading suction cup 24 and the unloading suction cup 25 to move in space to complete the loading of the metal discs and the unloading of the can body.

[0042] Refer to Figure 1 and Figure 3 As shown in FIGS. and, the stretching station 3 includes a bearing mechanism 31 provided on the frame 1. The bearing mechanism 31 is used to place the metal disc. A driving mechanism 32, a sliding block 33 and a pressing and stretching head 34 are also provided on the frame 1. The driving mechanism 32, the sliding block 33 and the pressing and stretching head 34 are connected in sequence. Among them, the sliding block 33 is a dovetail-shaped slider. A dovetail-shaped sliding groove is formed on the frame 1. The sliding block 33 is slidably connected to the sliding groove. The sliding block 33 can slide up and down. The driving mechanism 32 provides power to drive the sliding block 33 to move; the driving mechanism 32 can drive the pressing and stretching head 34 to move up and down through the sliding block 33 so as to press and stretch the metal disc into a can body.

[0043] Refer to Figure 3 As shown in FIG., the bearing mechanism 31 includes a height-adjusting component 311 provided on the frame 1 and a bearing and forming column 312 connected to the height-adjusting component 311. A secondary pressing component 313 for cooperating with the pressing and stretching head 34 to complete the stretching of the metal disc is also provided on the height-adjusting component 311 on one side of the bearing and forming column 312. The pressing and stretching head 34 includes an inner groove at the lower end. When the pressing and stretching head 34 moves downward, the bearing and forming column 312 will be inserted into the inner groove. As the bearing and forming column 312 is inserted, the metal disc is stretched. The specific structure of the pressing and stretching head 34 is the prior art, so it will not be elaborated here.

[0044] When the metal disc is stretched, the pressing and stretching head 34 and the secondary pressing component 313 are respectively located on both sides of the metal disc and press against the metal disc to ensure the position stability of the metal disc when it is stretched.

[0045] Refer to Figure 3 As shown in FIG., the height-adjusting component 311 includes a reciprocating driving member 3111 connected to the frame 1. The reciprocating driving member 3111 is a cylinder. An installation frame 3112 is connected to the reciprocating driving member 3111. The installation frame 3112 is slidably connected to the frame 1. The bearing and forming column 312 is installed on the installation frame 3112.

[0046] Driving the reciprocating member can drive the mounting frame 3112 to move, thereby driving the bearing forming column 312 to move, so as to adjust the stamping depth of the pressing and stretching head 34 on the metal disc, that is, to adjust the length of the can body being stretched.

[0047] Referring to Figure 3 , the auxiliary pressing assembly 313 includes an auxiliary pressing ring 3131. The bearing forming column 312 is inserted into the auxiliary pressing ring 3131 and is slidably connected between the bearing forming column 312 and the auxiliary pressing ring 3131. The upper end of the bearing forming column 312 is flush with the upper end of the auxiliary pressing ring 3131. The auxiliary pressing ring 3131 is connected with a sliding column 3132. A sliding hole 31121 is formed on the mounting frame 3112, and the sliding column 3132 is slidably connected to the sliding hole 31121; a connecting plate 3133 is provided on the sliding column 3132, and a spring 3134 is installed on the connecting plate 3133. One end of the spring 3134 away from the connecting plate 3133 is connected to the mounting frame 3112; when the pressing and stretching head 34 presses the metal disc, the auxiliary pressing ring 3131 moves downward and the spring 3134 is compressed.

[0048] Referring to Figure 3 and Figure 4 , the feeding mechanism 32 includes a box body 321 provided on the machine frame 1. The box body 321 is installed with a first rotating assembly 322. The first rotating assembly 322 is connected with an installation box 323, and the first rotating assembly 322 can drive the installation box 323 to rotate. The installation box 323 is installed with a second rotating assembly 324. The second rotating assembly 324 is connected with a rotating disc 325. The rotation axis of the rotating disc 325 deviates from the rotation axis of the installation box 323. The rotating disc 325 is eccentrically rotatably connected with a linkage arm 326, and one end of the linkage arm 326 away from the rotating disc 325 is rotatably connected to the sliding block 33.

[0049] When the first rotating assembly 322 works alone, it can drive the installation box 323 to rotate, thereby driving the sliding block 33 to move quickly through the linkage arm 326. When the second rotating assembly 324 works alone, it can drive the rotating disc 325 to rotate, thereby driving the sliding block 33 to move slowly through the linkage arm 326. Specifically, the installation box 323 has a first rotation axis, the rotating disc 325 has a second rotation axis, and one end of the linkage arm 326 close to the rotating disc 325 has a third rotation axis. In order to achieve the above actions, when the first rotating assembly 322 works alone, the distance between the third rotation axis and the first rotation axis is e1. When the second rotating assembly 324 works alone, the distance between the third rotation axis and the second rotation axis is e2, and e2 is less than e1.

[0050] In addition, when the rotation speed input by the first rotating assembly 322 remains unchanged, the rotation of the rotating disc 325 to different positions will cause e1 to change, which will change the moving speed of the sliding block 33.

[0051] Referring to Figure 4, The first rotation and transmission component 322 includes a first worm 3221 rotatably connected to the box body 321 and a first rotating shaft 3222. A first worm gear 3223 is installed on the first rotating shaft 3222, and the first rotating shaft 3222 and the first worm gear 3223 can rotate synchronously. The first worm 3221 and the first worm gear 3223 are meshed, and the first worm gear 3223 and the first worm 3221 can be self-locked. The box body 321 is also provided with a first rotation and transmission member 3224 connected to the first worm 3221. The first rotation and transmission member 3224 is a motor. The first rotating shaft 3222 extends outside the installation box 323 and is connected to the installation box 323. The second rotation and transmission component 324 includes a second worm 3241 rotatably connected to the installation box 323 and a second rotating shaft 3242. A second worm gear 3243 is rotatably installed on the second rotating shaft 3242. The second worm 3241 and the second worm gear 3243 are meshed, and the second worm 3241 and the second worm gear 3243 can be self-locked. The installation box 323 is provided with a second rotation and transmission member 3244 connected to the second worm 3241. The second rotation and transmission member 3244 is a motor. The second worm gear 3243 is connected to the rotating disk 325, and the second worm gear 3243 and the rotating disk 325 can rotate synchronously.

[0052] Driving the first rotation and transmission member 3224 can drive the first worm 3221, the first worm gear 3223, the rotating shaft and the installation box 323 to rotate, so as to drive the sliding block 33 to move through the linkage arm 326; driving the second rotation and transmission member 3244 can drive the second worm 3241, the second worm gear 3243 and the second rotating shaft 3242 to rotate, so as to drive the rotating disk 325 to rotate and then drive the sliding block 33 to move through the linkage arm 326. In addition, the self-locking characteristic of the first worm gear 3223 and the first worm 3221 can ensure that the installation box 323 will not move by mistake as a power input end. Therefore, when the first rotation and transmission works alone, the rotating disk 325 will not move by mistake; the self-locking characteristic of the second worm 3241 and the second worm gear 3243 can ensure that the rotating disk 325 will not move by mistake as a power input end. When the second rotation and transmission member 3244 works alone, the installation box 323 will not move by mistake.

[0053] Refer to Figure 5 , There is a first groove 3231 on the outer wall of the installation box 323. The rotating disk 325 is located in the first groove 3231. There is also a second groove 3232 on the outer wall of the installation box 323. The second groove 3232 communicates with the first groove 3231. A guide block 5 is slidably connected to the first groove 3231. A pin block 51 is provided at one end of the guide block 5 close to the rotating disk 325. A plurality of pin slots 3251 are evenly formed on the circumferential outer wall of the rotating disk 325. A docking hole 52 is formed at one end of the guide block 5 away from the rotating disk 325. An adjusting column 53 is rotatably connected to the installation box 323. The adjusting column 53 is threadedly connected with the docking hole 52. There is also a driving member 54 on the installation box 323. The driving member 54 is connected to the adjusting column 53. The driving member 54 is preferably a motor.

[0054] The driving belt rotating member 54 can drive the adjusting column 53 to rotate, thereby driving the guiding block 5 to approach or move away from the rotating disk 325. The movement of the guiding block 5 can drive the latch block 51 to engage / disengage from the latch slot 3251, thereby maintaining / releasing the locking of the rotating disk 325.

[0055] In the present application, under normal conditions, the latch block 51 is not engaged in the latch slot 3251. However, when the stretching of the metal disc does not require speed change, that is, when only the driving member one 3224 needs to be started alone to drive the pressing and stretching head 34 to move quickly, the driving belt rotating member 54 is required to lock the rotating disk 325.

[0056] Refer to Figure 1 , the material receiving station 4 includes a second frame 41 provided on the frame 1. A belt conveyor mechanism 42 is installed on the second frame 41, and a material receiving member 35 is installed on the belt conveyor mechanism 42. The material receiving member 35 includes a material receiving groove 351 that is concave inward on the wall surface.

[0057] Driving the belt conveyor mechanism 42 can drive the material receiving member 35 to move, that is, the material receiving groove 351 to move. When the material receiving member 35 moves, the loading and unloading station 2 can facilitate placing the manufactured can bodies one by one into the material receiving groove 351 for collection, and the subsequent can bodies will be conveyed until they fall off.

[0058] The implementation principle of an automatic can body forming machine in an embodiment of the present application is as follows:

[0059] First, stack a plurality of metal discs on the supporting plate 26 in advance, and drive the vertical reciprocating member 22 and the horizontal reciprocating member 23 to drive the loading suction cup 24 to move so as to place the metal disc on the bearing forming column 312;

[0060] Drive the driving member one 3224 alone to drive the worm one 3221, the worm gear one 3223, the rotating shaft and the mounting box 323 to rotate, thereby driving the sliding block 33 to move quickly downward through the linkage arm 326. The pressing and stretching head 34 will press the metal disc. At this time, the pressing and stretching head 34 and the auxiliary pressing ring 3131 are respectively located on both sides of the metal disc and press against the metal disc. As the pressing and stretching head 34 moves, the metal disc will complete the first stage of stretching, that is, rapid stretching; then drive the driving member two 3244 alone to drive the worm two 3241, the worm gear two 3243 and the rotating shaft two 3242 to rotate, thereby driving the rotating disk 325 to rotate, and then driving the sliding block 33 to move slowly through the linkage arm 326. The pressing and stretching head 34 continues to press the metal disc, and the metal disc is completed the second stage of stretching, that is, slow stretching, so as to obtain the can body;

[0061] Drive the vertical reciprocating member 22 and the horizontal reciprocating member 23 to drive the unloading suction cup 25 to grab and place the can body into the material receiving groove 351, and the subsequent can bodies will be conveyed until they fall off.

[0062] The embodiments of this specific implementation manner are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention shall be covered within the protection scope of the present invention.

Claims

1. An automatic tank body forming machine, characterized in that: It includes a frame (1), and a loading and unloading station (2), a stretching station (3), and a material receiving station (4) are provided on the frame (1). The stretching station (3) includes a bearing mechanism (31) provided on the frame (1). The bearing mechanism (31) is used for placing metal discs. A driving mechanism (32), a sliding block (33), and a pressing and stretching head (34) are also provided on the frame (1). The driving mechanism (32), the sliding block (33), and the pressing and stretching head (34) are connected in sequence. The driving mechanism (32) is used for driving the pressing and stretching head (34) to move through the sliding block (33) so as to press and stretch the metal disc into a can body. The driving mechanism (32) includes a box body (321) provided on the frame (1). A first rotating component (322) is installed in the box body (321), and the first rotating component (322) is connected to an installation box (323). A second rotating component (324) is installed in the installation box (323), and the second rotating component (324) is connected to a rotating disc (325). The rotation axis of the rotating disc (325) deviates from the rotation axis of the installation box (323). The rotating disc (325) is eccentrically and rotationally connected to a linkage arm (326), and one end of the linkage arm (326) far from the rotating disc (325) is rotationally connected to the sliding block (33). The first rotating component (322) is used for driving the installation box (323) to rotate so as to drive the sliding block (33) to move quickly through the linkage arm (326), and the second rotating component (324) is used for driving the rotating disc (325) to rotate so as to drive the sliding block (33) to move slowly through the linkage arm (326). The first rotating component (322) includes a worm one (3221) and a rotating shaft one (3222) rotationally connected to the box body (321). A worm wheel one (3223) is installed on the rotating shaft one (3222), and the rotating shaft one (3222) and the worm wheel one (3223) can rotate synchronously. The worm one (3221) and the worm wheel one (3223) are meshed, and the worm wheel one (3223) and the worm one (3221) can be self-locked. The box body (321) is also installed with a rotating component one (3224) connected to the worm one (3221). The rotating shaft one (3222) extends outside the installation box (323) and is connected to the installation box (323). The second rotating component (324) includes a worm two (3241) and a rotating shaft two (3242) rotationally connected to the installation box (323). A worm wheel two (3243) is rotationally installed on the rotating shaft two (3242). The worm two (3241) and the worm wheel two (3243) are meshed, and the worm two (3241) and the worm wheel two (3243) can be self-locked. A rotating component two (3244) connected to the worm two (3241) is installed on the installation box (323). The worm wheel two (3243) is connected to the rotating disc (325), and the worm wheel two (3243) and the rotating disc (325) can rotate synchronously.

2. The automatic tank body forming machine according to claim 1, wherein: The bearing mechanism (31) includes a height-adjusting component (311) provided on the frame (1) and a bearing and forming column (312) connected to the height-adjusting component (311). On one side of the bearing and forming column (312) on the height-adjusting component (311), there is also an auxiliary pressing component (313) for cooperating with the pressing and stretching head (34) to complete the stretching of the metal disc. When the metal disc is stretched, the pressing and stretching head (34) and the auxiliary pressing component (313) are respectively located on both sides of the metal disc.

3. An automatic tank body forming machine according to claim 2, characterized in that: The height-adjusting component (311) includes a reciprocating feeding member (3111) connected to the frame (1). An installation frame (3112) is connected to the reciprocating feeding member (3111). The installation frame (3112) is slidably connected to the frame (1), and the bearing and forming column (312) is installed on the installation frame (3112).

4. The automatic can body forming machine according to claim 3, wherein: The auxiliary pressing component (313) includes an auxiliary pressing ring (3131). A sliding column (3132) is connected to the auxiliary pressing ring (3131). A sliding hole (31121) is formed on the installation frame (3112), and the sliding column (3132) is slidably connected to the sliding hole (31121). A connecting plate (3133) is provided on the sliding column (3132). A spring (3134) is installed on the connecting plate (3133). One end of the spring (3134) away from the connecting plate (3133) is connected to the installation frame (3112). When the pressing and stretching head (34) presses the metal disc, the auxiliary pressing ring (3131) moves and the spring (3134) is compressed.

5. An automatic tank body forming machine according to claim 1, characterized in that: The loading and unloading station (2) includes a first frame body (21) provided on the frame (1). A vertical reciprocating member (22) is installed on the first frame body (21). A horizontal reciprocating member (23) is connected to the vertical reciprocating member (22). A loading suction cup (24) and an unloading suction cup (25) are connected to the horizontal reciprocating member (23).

6. The automatic can body forming machine according to claim 1, characterized in that: The material receiving station (4) includes a second frame body (41) provided on the frame (1). A belt conveyor mechanism (42) is installed on the second frame body (41). A material receiving member (35) is installed on the belt conveyor mechanism (42). The material receiving member (35) includes a material receiving groove (351) with an inward concave wall surface.

7. The automatic tank body forming machine according to claim 1, characterized in that: A dovetail-shaped chute is formed on the frame (1). The sliding block (33) is a dovetail-shaped slider, and the dovetail-shaped slider is slidably connected to the dovetail-shaped chute.

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