Cylindrical lithium battery end portion current collecting post outer winding flat pressing mechanism

Abstract

The application discloses a cylindrical lithium battery end portion current collecting post outer rolling and flattening mechanism, which comprises a feeding guide rail, a plurality of rotating discs and a discharging guide rail, etc., and is mainly characterized in that a plurality of circumferentially distributed lifting devices and jacking devices which are the same in number as the conveying grooves and one-to-one corresponding in position are arranged above and below one of the rotating discs, each of the lifting devices is internally provided with a mandrel and an outer rolling head or a flattening head at the lower end of the mandrel, and each of the jacking devices is internally provided with a jacking rod; in this way, when the rotating disc rotates to work, the jacking rod upper end is lifted to abut against the bottom end of the clamped current collecting post, the lifting device is lowered to make the outer rolling head or the flattening head contact the exposed top end of the current collecting post, then the mandrel rotates to drive the outer rolling head or the flattening head to circumferentially roll around the exposed top end of the current collecting post to form an outer rolling opening or to be flattened. Therefore, the outer rolling and flattening mechanism can not only better form a completely automatic flow line production and manufacturing of lithium battery production procedures, but also better improve the production efficiency of the lithium battery.

Description

TECHNICAL FIELD

[0001] The application relates to an outer rolling and flattening mechanism, in particular to an outer rolling and flattening mechanism for a cylindrical lithium battery end collecting column. BACKGROUND

[0002] With the wide application of full tab cylindrical lithium batteries in new energy vehicles, in order to better ensure the round side structure of the full tab cylindrical lithium battery, in particular the end sealing structure of the positive electrode end has better insulation performance and sealing performance, it is necessary to roll and flatten the outer shell constituting the positive electrode end and the collecting column top exposed at the end of the outer shell, so as to ensure the sealing of the lithium battery without liquid leakage and high pressure resistance and other use advantages, so that the quality of the lithium battery is more reliable. However, since the full tab cylindrical lithium battery is a very new product, at present, the lithium battery manufacturers do not have special automatic production equipment or manufacturing mechanism for the outer rolling and flattening of the collecting column top; therefore, due to the lack of these mechanisms and equipment, it is impossible to form an automatic production manufacturing line in the lithium battery production process, which reduces the production efficiency of the lithium battery. SUMMARY

[0003] The technical problem to be solved by the application is to overcome the defects of the prior art and provide an outer rolling and flattening mechanism specially used for rolling and flattening the outer shell constituting the positive electrode end and the collecting column top exposed at the end of the outer shell, and to form a fully automatic production manufacturing line in the lithium battery production process through the outer rolling and flattening mechanism, so as to better improve the production efficiency of the lithium battery.

[0004] The technical problem of the application is solved by the following technical scheme:

[0005] The application discloses a cylindrical lithium battery end collecting post outer winding and flattening mechanism, which comprises an inlet guide rail, an outlet guide rail and a plurality of rotating discs arranged between the inlet guide rail and the outlet guide rail. The outer periphery of each rotating disc is provided with a plurality of circumferentially distributed conveying grooves. The conveying grooves are used for clamping lithium batteries, and the lithium batteries have a shell and a collecting post exposed at the end of the shell. The plurality of rotating discs are rotatable and sequentially meshed, so that the conveying grooves at the meshing positions of every two adjacent rotating discs are cooperatively connected to convey the lithium batteries. One of the rotating discs is provided with a plurality of circumferentially distributed lifting devices above and a plurality of circumferentially distributed jacking devices below. The plurality of lifting devices and the plurality of jacking devices are in one-to-one correspondence with the plurality of conveying grooves in terms of quantity and position. A mandrel is arranged in each lifting device, and an outer winding head or a flattening head is arranged at the lower end of the mandrel. A jacking rod is arranged in each jacking device. The lifting devices and the jacking rods are lifted and moved by the rotating work of the rotating discs. The mandrel is rotated by the rotating work of the rotating discs. When the upper end of the jacking rod in one of the jacking devices is lifted to penetrate into the shell and abut against the bottom end of the clamped collecting post, the corresponding lifting device is also lowered synchronously, so that the outer winding head or the flattening head contacts the top end of the exposed collecting post, and the outer winding head or the flattening head is rolled around the top end of the exposed collecting post by the rotating mandrel to form an outer winding opening or a flattening.

[0006] The plurality of rotating discs comprise an inlet rotating disc connected to the output end of the inlet guide rail, an outer winding rotating disc cooperatively connected to the inlet rotating disc, a transition rotating disc cooperatively connected to the outer winding rotating disc, a flattening rotating disc cooperatively connected to the transition rotating disc, and an outlet rotating disc cooperatively connected to the flattening rotating disc and connected to the input end of the outlet guide rail. The outer winding rotating disc is provided with a plurality of circumferentially distributed lifting devices above and a plurality of circumferentially distributed jacking devices below. The plurality of lifting devices and the plurality of jacking devices are in one-to-one correspondence with the plurality of conveying grooves in terms of quantity and position. A mandrel is arranged in each lifting device, and an outer winding head is arranged at the lower end of the mandrel. The flattening rotating disc is provided with a plurality of circumferentially distributed lifting devices above and a plurality of circumferentially distributed jacking devices below. The plurality of lifting devices and the plurality of jacking devices are in one-to-one correspondence with the plurality of conveying grooves in terms of quantity and position. A mandrel is arranged in each lifting device, and a flattening head is arranged at the lower end of the mandrel.

[0007] The inlet rotating disc is arranged on an inlet shaft and driven to rotate. The outer winding rotating disc is arranged on an outer winding shaft and driven to rotate. The transition rotating disc is arranged on a transition shaft and driven to rotate. The flattening rotating disc is arranged on a flattening shaft and driven to rotate. The outlet rotating disc is arranged on an outlet shaft and driven to rotate. The inlet shaft, the outer winding shaft, the transition shaft, the flattening shaft and the outlet shaft are parallel and vertically rotatable and arranged on a workbench.

[0008] The lifting device includes an upper cam, an upper mounting plate and a large gear which are sleeved on the rolling shaft or the flat pressing shaft; the upper cam is stationary relative to the rolling shaft or the flat pressing shaft, and the outer circumferential surface of the upper cam is provided with a driving groove which surrounds the circumference to form an elliptical closed track; the upper mounting plate and the large gear are driven by the rolling shaft or the flat pressing shaft to rotate synchronously, and the upper mounting plate is provided with a plurality of upper shaft sleeves which correspond to each conveying groove one by one, and a side roller which is rollingly mounted in the driving groove is provided on the outside of the upper shaft sleeve, and a core shaft which is rotatably mounted is provided in the upper shaft sleeve, and the core shaft The upper end passes through the top of the upper sleeve and is provided with a small gear, which is engaged with the large gear. The lower end of the core shaft passes through the bottom of the upper sleeve and is installed with an outer rolling head or a flat pressing head; the rotation of the rolling shaft or the flat pressing shaft drives the upper mounting disk and the upper sleeve on the upper mounting disk to rotate around the rolling shaft or the flat pressing shaft, and makes the side rollers outside the upper sleeve roll along the driving groove, which is then converted into the lifting movement of the upper sleeve relative to the upper mounting disk, and synchronously drives the large gear to rotate around the rolling shaft or the flat pressing shaft, and drives the pinion, the core shaft and the outer rolling head or the flat pressing head to rotate synchronously.

[0009] The lifting device includes a lower mounting plate sleeved on the reel shaft or the flat pressure shaft, and the lower mounting plate is driven by the reel shaft or the flat pressure shaft to rotate synchronously; the lower mounting plate is provided with a plurality of lower shaft sleeves corresponding to each conveying trough, and a lifting rod is provided in the lower shaft sleeve for lifting and lowering, and a lower cam is provided below the rod.

[0010] The lower cam is stationary relative to the rolling shaft or the flat pressing shaft, and the top surface of the lower cam is provided with a wavy cam surface, and the lower end of the push rod rolls and contacts on the cam surface through the lower roller; the rotation of the rolling shaft or the flat pressing shaft drives the lower mounting plate, the lower shaft sleeve on the lower mounting plate and the push rod in the lower shaft sleeve to rotate around the rolling shaft or the flat pressing shaft, and causes the lower roller at the lower end of the push rod to roll along the cam surface to form the lifting movement of the push rod.

[0011] The lower end of the feed shaft is equipped with a feed gear; the lower end of the roll shaft is equipped with a roll gear, and the roll gear forms a meshing transmission with the feed gear; the lower end of the transition shaft is equipped with a transition gear, and the transition gear forms a meshing transmission with the roll gear; the lower end of the flat pressing shaft is equipped with a flat pressing gear, and the flat pressing gear forms a meshing transmission with the transition gear; the lower end of the discharging shaft is equipped with a discharging gear, and the discharging gear forms a meshing transmission with the flat pressing gear.

[0012] The outer rolling head includes a mounting sleeve fixed on the lower end of the core shaft, a rotating sleeve rotatably mounted on the bottom of the mounting sleeve, and a rolling rod mounted on the rotating sleeve and rotating synchronously. The rotation axis of the rolling rod forms an inwardly inclined intersection with the rotation axis of the core shaft; the rolling rod is in contact with the exposed top end of the collecting column, and is driven by the rotation of the core shaft to roll along the circumference of the top end of the collecting column to form an outer rolling mouth.

[0013] The flat pressing head comprises a mounting fork fixed to the lower end of the mandrel, and a group of flat pressing rollers arranged in series in the mounting fork, and the rolling axis of the flat pressing rollers is perpendicular to the rotating axis of the mandrel; the flat pressing rollers are in contact with the outer curling edge of the top end of the current collecting column, and are driven to roll and press the outer curling edge by the rotation of the mandrel.

[0014] Compared with the prior art, the present application mainly provides a unique design of the outer curling flat pressing mechanism, which is composed of a feeding guide rail, a plurality of rotating discs and a discharging guide rail, and a plurality of lifting devices are arranged on the upper side of one of the rotating discs, and a plurality of jacking devices are arranged on the lower side of the rotating disc, the number of the lifting devices and the jacking devices is the same as the number of the conveying slots on the outer periphery of the rotating disc, and the positions of the lifting devices and the jacking devices correspond to the positions of the conveying slots, and a mandrel is arranged in each lifting device, and an outer curling head or a flat pressing head is arranged at the lower end of the mandrel, and a jacking rod is arranged in each jacking device; thus, the lifting devices and the jacking rods are driven to move up and down by the rotating work of the rotating disc, and the mandrel is driven to rotate by the rotating work of the rotating disc; therefore, when the upper end of the jacking rod in one of the jacking devices is lifted to penetrate into the shell and abut against the bottom end of the clamped current collecting column, the corresponding lifting device is also driven to move down, so that the outer curling head or the flat pressing head is in contact with the exposed top end of the current collecting column, and the outer curling head or the flat pressing head is driven to roll around the exposed top end of the current collecting column by the mandrel, so that the outer curling or the flat pressing is formed. Obviously, this is an outer curling flat pressing mechanism specially used for the outer curling and flat pressing between the shell at the end of the cylindrical lithium battery and the exposed top end of the current collecting column at the end of the shell; therefore, the outer curling flat pressing mechanism can better form the fully automatic assembly line production of the lithium battery production process, and can better improve the production efficiency of the lithium battery. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a sectional view of the structure of the present application.

[0016] Figure 2 It is a top view of the structure of the present application. Figure 1

[0017] Figure 3 It is a structure diagram of the outer curling head.

[0018] Figure 4 It is a structure diagram of the flat pressing head.

[0019] Figure 5 It is a structure diagram of the lithium battery with the current collecting column exposed at the end of the shell.

[0020] Figure 6 It is a structure diagram of the outer curling and flat pressing of the current collecting column at the end of the lithium battery. Figure 5 DETAILED DESCRIPTION ​​

[0021] The following will be described in detail according to the above-mentioned drawings.

[0022] As shown in Figures 1-6 , 1. workbench, 11. feeding shaft, 111. feeding gear, 12. winding shaft, 121. winding gear, 13. transition shaft, 131. transition gear, 14. flat pressing shaft, 141. flat pressing gear, 15. discharging shaft, 151. discharging gear, 16. feeding guide rail, 17. discharging guide rail, 18. conveying groove, 2. feeding turntable, 3. winding turntable, 4. transition turntable, 5. flat pressing turntable, 6. discharging turntable, 7. lifting device, 71. upper cam, 711. driving groove, 72. upper mounting disc, 73. large gear, 74. upper shaft sleeve, 75. side roller, 76. small gear, 77. mandrel, 78. outer winding head, 781. mounting sleeve, 782. rotating sleeve, 783. winding rod, 79. flat pressing head, 791. mounting fork, 792. flat pressing roller, 8. jacking mechanism, 81. lower mounting disc, 82. lower shaft sleeve, 83. jacking rod, 84. lower roller, 85. lower cam, 851. cam surface, 9. current collecting column, 91. outer winding, 10. outer shell.

[0023] An outer winding flat pressing mechanism for the end current collecting column of cylindrical lithium battery, as shown in Figure 1 , Figure 2 , relates to an outer winding flat pressing mechanism specially used for winding and pressing the outer shell 10 of the end of cylindrical lithium battery and the top end of the current collecting column 9 exposed outside the end of the outer shell, which is composed of feeding guide rail 13, discharging guide rail 17 and several turntables mounted between the feeding guide rail 13 and the discharging guide rail 17.

[0024] Among them, the several turntables involved in the embodiment refer to feeding turntable 2 connected to the output end of feeding guide rail 16, winding turntable 3 cooperatively connected to the feeding turntable, transition turntable 4 cooperatively connected to the winding turntable, flat pressing turntable 5 cooperatively connected to the transition turntable, and discharging turntable 6 cooperatively connected to the flat pressing turntable, which is also connected to the input end of the discharging guide rail 17.

[0025] Meanwhile, the outer circumference of each turntable is provided with several circumferentially distributed conveying grooves 18, which are semicircular notch grooves for clamping lithium batteries to facilitate conveying, as shown in Figure 5 , which have an outer shell 10 and a current collecting column 9 exposed at the top end of the outer shell; therefore, the several turntables work in rotation and form sequential engagement, so that the conveying grooves 18 at the engagement of each adjacent two turntables form cooperative connection to sequentially convey lithium batteries.

[0026] The feeding rotary disc 2 is installed on the feeding shaft 11, specifically fixed on the upper end of the feeding shaft and driven to rotate; the winding rotary disc 3 is installed on the winding shaft 12, specifically fixed on the middle part of the winding shaft and driven to rotate; the transition rotary disc 4 is installed on the transition shaft 13, specifically fixed on the upper end of the transition shaft and driven to rotate; the flat pressing rotary disc 5 is installed on the flat pressing shaft 14, specifically fixed on the middle part of the flat pressing shaft and driven to rotate; the discharging rotary disc 6 is installed on the discharging shaft 15, specifically fixed on the upper end of the discharging shaft and driven to rotate; the feeding shaft 11, the winding shaft 12, the transition shaft 13, the flat pressing shaft 14 and the discharging shaft 15 are installed on the workbench 1 in parallel and vertically.

[0027] Furthermore, the lower end of the feeding shaft 11 penetrates through the workbench 1 to install the feeding gear 111; the lower end of the winding shaft 12 penetrates through the workbench 1 to install the winding gear 121, which is in meshing transmission with the feeding gear 111; the lower end of the transition shaft 13 penetrates through the workbench 1 to install the transition gear 131, which is in meshing transmission with the winding gear 121; the lower end of the flat pressing shaft 14 penetrates through the workbench 1 to install the flat pressing gear 141, which is in meshing transmission with the transition gear 131; the lower end of the discharging shaft 15 penetrates through the workbench 1 to install the discharging gear 151, which is in meshing transmission with the flat pressing gear 141; thus, when the feeding shaft 11 drives the feeding gear 111 to rotate, power transmission is formed through the sequentially meshing winding gear 121, the transition gear 131, the flat pressing gear 141 and the discharging gear 151, that is, the feeding rotary disc 2, the winding rotary disc 3, the transition rotary disc 4, the flat pressing rotary disc 5 and the discharging rotary disc 6 form synchronous rotary work, so that the lithium batteries arranged one by one in the feeding guide rail 16 can be sequentially conveyed through the connection of the feeding rotary disc 2, the winding rotary disc 3, the transition rotary disc 4, the flat pressing rotary disc 5 and the discharging rotary disc 6, and then output through the discharging guide rail 17.

[0028] In addition, a plurality of circumferentially distributed lifting devices 7 are arranged above one of the rotary discs, and a plurality of circumferentially distributed jacking devices 8 are arranged below the rotary disc; according to the production process of the embodiment, a plurality of circumferentially distributed lifting devices 7 are arranged above the winding rotary disc 3, and a plurality of circumferentially distributed jacking devices 8 are arranged below the winding rotary disc 3; the number of the lifting devices 7 and the jacking devices 8 is the same as the number of the conveying grooves 18 on the outer circumference of the winding rotary disc 3, and the positions of the lifting devices 7 and the jacking devices 8 correspond to the positions of the conveying grooves 18 one by one; a mandrel 77 is arranged in each lifting device 7, and an outer winding head 78 is installed at the lower end of the mandrel 77; a plurality of circumferentially distributed lifting devices 7 are also arranged above the flat pressing rotary disc 5, and a plurality of circumferentially distributed jacking devices 8 are arranged below the flat pressing rotary disc 5; the number of the lifting devices 7 and the jacking devices 8 is the same as the number of the conveying grooves 18 on the outer circumference of the flat pressing rotary disc 5, and the positions of the lifting devices 7 and the jacking devices 8 correspond to the positions of the conveying grooves 18 one by one; a mandrel 77 is arranged in each lifting device 7, and a flat pressing head 79 is installed at the lower end of the mandrel 77.

[0029] The lifting device 7 is arranged above the roll-up rotary table 3 or above the flattening rotary table 5, and has the same structure design; the jacking device 8 is arranged below the roll-up rotary table 3 or below the flattening rotary table 4, and also has the same structure design.

[0030] The lifting device 7 comprises an upper cam 71, an upper mounting disc 72 and a large gear 73 which are sleeved on the roll-up shaft 12 or the flattening shaft 14; the upper cam 71 is fixed relative to the roll-up shaft 12 or the flattening shaft 14, and the outer circumferential surface of the upper cam 71 is provided with a driving groove 711 which forms an elliptical closed track in circumferential direction; the upper mounting disc 72 and the large gear 73 are driven to rotate synchronously by the roll-up shaft 12 or the flattening shaft 14, the upper mounting disc 72 is provided with a plurality of upper shaft sleeves 74 which correspond to the conveying grooves 18 one by one, the outer side of the upper shaft sleeve is provided with a side roller 75 which is rolling fitted in the driving groove 711, the inner side of the upper shaft sleeve 74 is provided with a core shaft 77 which is rotatably installed, and the upper end of the core shaft is provided with a pinion 76 which passes through the top of the upper shaft sleeve 74 and is engaged with the large gear 73 to form power transmission, and the lower end of the core shaft 77 passes through the bottom of the upper shaft sleeve 74 to install an outer roll head 78 or a flattening head 79; therefore, when the roll-up shaft 12 or the flattening shaft 14 rotates, the upper mounting disc 72 and the upper shaft sleeve 74 on the upper mounting disc are driven to rotate around the roll-up shaft 12 or the flattening shaft 14, and the side roller 75 outside the upper shaft sleeve 74 is rolled along the driving groove 711, and the side roller 75 is driven to form a closed loop rolling up and down along the elliptical closed track of the driving groove 711, so as to be converted into the lifting movement of the upper shaft sleeve 74 relative to the upper mounting disc 72, and at the same time, the large gear 73 is also driven to rotate around the roll-up shaft 12 or the flattening shaft 14, and the pinion 76, the core shaft 77 and the outer roll head 78 or the flattening head 79 are driven to rotate synchronously.

[0031] The jacking device 8 comprises a lower mounting disc 81 which is sleeved on the roll-up shaft 12 or the flattening shaft 14 and is driven to rotate synchronously by the roll-up shaft 12 or the flattening shaft 14; the lower mounting disc 81 is provided with a plurality of lower shaft sleeves 82 which correspond to the conveying grooves 18 one by one, the inner side of the lower shaft sleeve is provided with a jacking rod 83 which is movably installed, and the lower side of the jacking rod is provided with a lower cam 85 which is fixedly installed on the workbench 1 and is fixed relative to the roll-up shaft 12 or the flattening shaft 14, and the top surface of the lower cam 85 is provided with a cam surface 851 which has a wave shape, and the lower end of the jacking rod 83 is in rolling contact with the cam surface 851 through a lower roller 84; the roll-up shaft 12 or the flattening shaft 14 is rotated to drive the lower mounting disc 81, the lower shaft sleeve 82 on the lower mounting disc and the jacking rod 83 in the lower shaft sleeve to rotate around the roll-up shaft 12 or the flattening shaft 14, so as to drive the lower roller 84 at the lower end of the jacking rod 83 to roll along the cam surface 851 to form the lifting movement of the jacking rod 83.

[0032] The outer winding head 78 comprises a mounting sleeve 781 fixedly sleeved on the lower end of the mandrel 77, a rotating sleeve 782 rotatably mounted on the bottom of the mounting sleeve, and a winding rod 783 mounted on the rotating sleeve and synchronously rotating, the rotating axis of the winding rod 783 being inwardly inclined and intersected with the rotating axis of the mandrel 77; the winding rod 783 is in contact with the exposed top end of the current collecting post 9, and is rolled along the circumference of the top end of the current collecting post 9 to form the outer winding port 91 under the driving of the rotation of the mandrel 77.

[0033] The flat pressing head 79 comprises a mounting fork 791 fixedly mounted on the lower end of the mandrel 77, a group of flat pressing rollers 792 being mounted in series in the mounting fork, and the rolling axis of the flat pressing rollers 792 being perpendicular to the rotating axis of the mandrel 77; the flat pressing rollers 792 are in contact with the outer winding port 91 on the top end of the current collecting post 9, and are circumferentially rolled to press the outer winding port 91 under the driving of the rotation of the mandrel 77.

[0034] The working process of the present application is as follows: when the winding port rotating disc 3 rotates, the upper end of the jacking rod 83 in one of the jacking devices 8 is first lifted to penetrate the shell 10 and abut against the bottom end of the clamped current collecting post 9, so that the current collecting post can be in a fixed state, and the corresponding lifting device 7 is synchronously lowered to make the outer winding head 78 contact the exposed top end of the current collecting post 9, and the outer winding head 78 is circumferentially rolled around the exposed top end of the current collecting post 9 under the driving of the rotation of the mandrel 77 to form the outer winding port 91; of course, the working process of the flat pressing rotating disc 5 is the same, only that the rotating mandrel 77 drives the flat pressing head 79 to circumferentially roll around the exposed top end of the current collecting post 9 to press the outer winding port 91.

[0035] Obviously, it is an outer winding and flat pressing mechanism specially used for winding and pressing between the shell 10 at the end of a cylindrical lithium battery and the top end of the current collecting post 9 exposed at the end of the shell; therefore, the outer winding and flat pressing mechanism can better form a fully automatic assembly line production of lithium battery production process, and can better improve the production efficiency of lithium batteries.

[0036] The above is only a specific embodiment of the present application, and those skilled in the art should understand that any equivalent structural design to the embodiment should be included in the protection scope of the present application.

Claims

1. A cylindrical lithium battery end portion current collecting post outer winding flat pressing mechanism, comprising an inlet guide rail (16), an outlet guide rail (17), and a plurality of rotating discs installed between the inlet guide rail (16) and the outlet guide rail (17), wherein the outer circumference of each rotating disc is provided with a plurality of circumferentially distributed conveying grooves (18) for clamping lithium batteries, and the lithium batteries have a shell (10) and a current collecting post (9) exposed at the top end of the shell; the plurality of rotating discs rotate and form a meshing sequence, so that the conveying grooves (18) at the meshing positions of each adjacent two rotating discs form a matched and connected lithium battery conveying structure. One of the rotating disc is provided with several circumferentially distributed lifting devices (7) and several circumferentially distributed jacking devices (8), the several lifting devices (7) and the several jacking devices (8) are same in number and one-to-one corresponding in position with the several conveying grooves (18), each lifting device (7) is provided with a mandrel (77) inside, the lower end of the mandrel is provided with an outer coiling head (78) or a flat pressing head (79), each jacking device (8) is provided with a jacking rod (83) inside; the lifting device (7) and the jacking rod (83) are driven to move up and down by the rotating work of the rotating disc, the mandrel (77) is driven to rotate by the rotating work of the rotating disc, and when the upper end of the jacking rod (83) in one of the jacking devices (8) is driven to rise through the shell (10) and abut against the bottom end of the clamped current collecting column (9), the corresponding lifting device (7) is also driven to descend synchronously so that the outer coiling head (78) or the flat pressing head (79) contacts the exposed top end of the current collecting column (9), and the outer coiling head (78) or the flat pressing head (79) is driven to roll around the exposed top end of the current collecting column (9) by the rotating mandrel (77) to form an outer coiling opening (91) or a flat pressing; the several rotating discs include an inlet rotating disc (2) connected to the output end of an inlet guide rail (16), an opening rotating disc (3) cooperatively connected with the inlet rotating disc, a transition rotating disc (4) cooperatively connected with the opening rotating disc, a flat pressing rotating disc (5) cooperatively connected with the transition rotating disc, and an outlet rotating disc (6) cooperatively connected with the flat pressing rotating disc, and the outlet rotating disc is also connected to the input end of an outlet guide rail (17); the opening rotating disc (3) is provided with several circumferentially distributed lifting devices (7) above and several circumferentially distributed jacking devices (8) below, the several lifting devices (7) and the several jacking devices (8) are same in number and one-to-one corresponding in position with the several conveying grooves (18) on the outer circumference of the opening rotating disc (3), each lifting device (7) is provided with a mandrel (77) inside, and the lower end of the mandrel is provided with an outer coiling head (78); the flat pressing rotating disc (5) is provided with several circumferentially distributed lifting devices (7) above and several circumferentially distributed jacking devices (8) below, the several lifting devices (7) and the several jacking devices (8) are same in number and one-to-one corresponding in position with the several conveying grooves (18) on the outer circumference of the flat pressing rotating disc (5), each lifting device (7) is provided with a mandrel (77) inside, and the lower end of the mandrel is provided with a flat pressing head (79).

2. The outer winding flat pressing mechanism of the cylindrical lithium battery end current collector post according to claim 1, characterized in that The inlet rotating disc (2) is installed on an inlet shaft (11) and driven to rotate, the opening rotating disc (3) is installed on an opening shaft (12) and driven to rotate, the transition rotating disc (4) is installed on a transition shaft (13) and driven to rotate, the flat pressing rotating disc (5) is installed on a flat pressing shaft (14) and driven to rotate, and the outlet rotating disc (6) is installed on an outlet shaft (15) and driven to rotate; the inlet shaft (11), the opening shaft (12), the transition shaft (13), the flat pressing shaft (14) and the outlet shaft (15) are parallel and vertically installed on a workbench (1).

3. The outer winding flat pressing mechanism of the cylindrical lithium battery end current collector post according to claim 2, characterized in that The lifting device (7) includes an upper cam (71) mounted on the rolling shaft (12) or the flat pressing shaft (14), an upper mounting plate (72) and a large gear (73); the upper cam (71) is stationary relative to the rolling shaft (12) or the flat pressing shaft (14), and the outer circumferential surface of the upper cam (71) is provided with a driving groove (711) which surrounds the circumference to form an elliptical closed track; the upper mounting plate (72) and the large gear (73) are driven by the rolling shaft (12) or the flat pressing shaft (14) to rotate synchronously, and the upper mounting plate (72) is provided with a plurality of upper shaft sleeves (74) corresponding to each conveying groove (18), and a side roller (75) is provided on the outer side of the upper shaft sleeve and is rollingly mounted in the driving groove (711), and a core shaft (77) is provided in the upper shaft sleeve (74), and the upper end of the core shaft passes through the upper shaft A small gear (76) is provided on the top of the sleeve (74), which meshes with the large gear (73). The lower end of the core shaft (77) passes through the bottom of the upper sleeve (74) to install an outer coiling head (78) or a flat pressing head (79); the described coiling shaft (12) or the flat pressing shaft (14) rotates to drive the upper mounting plate (72) and the upper sleeve (74) on the upper mounting plate to rotate around the coiling shaft (12) or the flat pressing shaft (14), and causes the side roller (75) outside the upper sleeve (74) to roll along the driving groove (711), thereby converting the upper sleeve (74) into a lifting movement relative to the upper mounting plate (72), and synchronously driving the large gear (73) to rotate around the coiling shaft (12) or the flat pressing shaft (14), and driving the small gear (76), the core shaft (77) and the outer coiling head (78) or the flat pressing head (79) to rotate synchronously.

4. The outer rolling and flattening mechanism of the cylindrical lithium battery end current collecting column according to claim 2 is characterized in that the lifting device (8) includes a lower mounting plate (81) sleeved on the rolling shaft (12) or the flattening shaft (14), and the lower mounting plate is driven by the rolling shaft (12) or the flattening shaft (14) to rotate synchronously; the lower mounting plate (81) is provided with a plurality of lower shaft sleeves (82) corresponding to each conveying groove one by one, and a lifting and movable ejector rod (83) is provided in the lower shaft sleeve, and a lower cam (85) is provided below the ejector rod, and the lower cam is relative to the rolling shaft (12) or the flattening shaft. The pressing shaft (14) is stationary, and the top surface of the lower cam (85) is provided with a wavy cam surface (851), and the lower end of the push rod (83) rolls and contacts on the cam surface (851) through the lower roller (84); the rotation of the rolling shaft (12) or the flat pressing shaft (14) drives the lower mounting plate (81), the lower sleeve (82) on the lower mounting plate, and the push rod (83) in the lower sleeve to rotate around the rolling shaft (12) or the flat pressing shaft (14), and causes the lower roller (84) at the lower end of the push rod (83) to roll along the cam surface (851), thereby forming the lifting movement of the push rod (83).

5. The outer winding flat pressing mechanism of the cylindrical lithium battery end current collector post according to claim 2, characterized in that The lower end of the feeding shaft (11) is installed with a feeding gear (111); the lower end of the winding shaft (12) is installed with a winding gear (121), which forms meshing transmission with the feeding gear (111); the lower end of the transition shaft (13) is installed with a transition gear (131), which forms meshing transmission with the winding gear (121); the lower end of the flat pressing shaft (14) is installed with a flat pressing gear (141), which forms meshing transmission with the transition gear (131); the lower end of the discharging shaft (15) is installed with a discharging gear (151), which forms meshing transmission with the flat pressing gear (141).

6. The outer winding flat pressing mechanism of the cylindrical lithium battery end current collector post according to claim 1, characterized in that The outer winding head (78) comprises a mounting sleeve (781) fixedly sleeved on the lower end of the mandrel (77), a rotating sleeve (782) rotatably mounted on the bottom of the mounting sleeve, and a winding rod (783) mounted on the rotating sleeve and synchronously rotating, the rotating axis of the winding rod and the rotating axis of the mandrel (77) form an inwardly inclined intersection; the winding rod (783) is in contact with the exposed top end of the current collecting column (9), and is driven by the rotation of the mandrel (77) to roll along the top end of the current collecting column (9) to form an outer winding port (91).

7. The outer winding flat pressing mechanism of the cylindrical lithium battery end current collector post according to claim 1, characterized in that The flat pressing head (79) comprises a mounting fork (791) fixed on the lower end of the mandrel (77), a group of flat pressing rollers (792) are arranged in series in the mounting fork, and the rolling axis of the flat pressing rollers is perpendicular to the rotating axis of the mandrel (77); the group of flat pressing rollers (792) are in contact with the outer winding port (91) on the top end of the current collecting column (9), and are driven by the rotation of the mandrel (77) to circularly roll and press the outer winding port (91).

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