A bottom paper assembly device for battery can

Abstract

A bottom paper assembly device for a battery barrel comprises a machine body, a battery barrel positioning mechanism and a bottom paper punching and cutting mechanism; the battery barrel positioning mechanism comprises a positioning plate and a lifting mechanism; the positioning plate is fixedly arranged on the machine body, and a positioning hole is provided on the positioning plate; the lifting mechanism is located below the positioning plate; the bottom paper punching and cutting mechanism comprises a punching template, a bottom paper pressing plate, a punching head and a pressing shaft; a punching hole is provided on the punching template; a feed hole is provided on the bottom paper pressing plate; the punching template is arranged on the positioning plate, the bottom paper pressing plate is arranged on the punching template, and a paper feeding channel is left between the bottom paper pressing plate and the punching template; the punching head is located above the bottom paper pressing plate, and the punching head is arranged on the machine body through the punching head lifting mechanism; the pressing shaft passes through the punching head and can move up and down in the punching head; the pressing shaft is arranged on the machine body through the pressing shaft lifting mechanism. The device can effectively improve the battery production efficiency.

Description

Technical Field

[0001] The invention relates to the field of battery assembly, in particular to a bottom paper assembly device for a battery can. Background Art

[0002] During battery manufacturing, the bottom paper needs to be loaded into the bottom of the battery can so that the bottom paper completely covers the inner surface of the bottom of the battery can, so that manganese, zinc and other materials can be loaded later. The existing bottom paper assembly process is to first cut the paper strip into a circular bottom paper so that the diameter of the bottom paper is slightly larger than the diameter of the battery can; then the battery can is placed vertically, and the bottom paper is placed at the top opening of the battery can; then the bottom paper is pressed to the bottom of the battery can by a pressing shaft, and the bottom paper will form a paper bowl under the action of the inner wall of the battery can and the pressing shaft, so that the bottom of the paper bowl covers the bottom of the battery can, and the side wall of the paper bowl contacts the inner wall of the bottom of the battery can.

[0003] The bottom paper assembly process includes multiple steps of bottom paper cutting, alignment and positioning of the battery cylinder and the pressing shaft, and bottom paper feeding into the cylinder; however, there is currently no equipment that can efficiently complete the above assembly process. Summary of the invention

[0004] The purpose of the present invention is to provide a bottom paper assembly device for a battery can in view of the above-mentioned problems, which can align the battery can with the pressing shaft, can complete the cutting and feeding of the bottom paper at the same station, and can efficiently complete the bottom paper feeding operation.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A bottom paper assembly device for a battery can comprises a machine body, a battery can positioning mechanism and a bottom paper punching and cutting mechanism;

[0007] The battery cartridge positioning mechanism comprises a positioning plate and a lifting mechanism; the positioning plate is fixedly arranged on the machine body, and a positioning hole vertically penetrating the positioning plate is opened on the positioning plate; the lifting mechanism is located below the positioning plate, and the lifting mechanism is used to push the battery cartridge upward so that the upper end of the battery cartridge is inserted into the positioning hole;

[0008] The bottom paper punching and cutting mechanism comprises a punching template, a bottom paper pressing plate, a punching head and a pressing shaft;

[0009] The punching template is provided with a punching hole which vertically penetrates the punching template;

[0010] The bottom paper pressing plate is provided with a knife feed hole which vertically penetrates the bottom paper pressing plate;

[0011] The punching template is arranged on the positioning plate, the bottom paper pressing plate is arranged on the punching template, and a paper feeding channel is reserved between the bottom paper pressing plate and the punching template;

[0012] The punching head is located above the bottom paper pressing plate, and the punching head is arranged on the machine body through a punching head lifting mechanism, and the punching head lifting mechanism is used to drive the punching head to move up and down so that the lower end of the punching head can be inserted into the feed hole and the punching hole;

[0013] The pressing shaft passes through the punching head and can move up and down inside the punching head; the pressing shaft is arranged on the machine body through a pressing shaft lifting mechanism, and the pressing shaft lifting mechanism is used to drive the pressing shaft to move up and down, so that the lower end of the pressing shaft can pass through the feed hole, the punching hole and the positioning hole.

[0014] Furthermore, the jacking mechanism includes a guide cylinder and a jacking shaft, the guide cylinder is vertically arranged, the jacking shaft passes through the guide cylinder, and can move up and down in the guide cylinder; the lower end of the jacking shaft is connected to a jacking shaft driving mechanism, and the jacking shaft driving mechanism is used to drive the jacking shaft to move up and down; the axis of the jacking shaft coincides with the axis of the positioning hole.

[0015] Furthermore, the lifting shaft driving mechanism includes a rocker rod, a lifting connecting rod, a cam, a guide wheel and a return spring;

[0016] The rocker arm 1 is rotatably arranged on a rotating shaft 1 and can rotate in a vertical direction; the rear end of the rocker arm 1 is movably connected to a lower end of a lifting link, and the upper end of the lifting link 1 is movably connected to a lower end of a lifting shaft; the guide wheel 1 is rotatably arranged on a side of the rocker arm 1, close to the rear end of the rocker arm 1; the cam 1 is located below the guide wheel 1 and contacts the guide wheel 1; the return spring is connected to the front end of the rocker arm 1, and is used to drive the front end of the rocker arm 1 to move upward.

[0017] Furthermore, the punching head lifting mechanism includes a punching head mounting shaft, a punching head mounting plate and a punching head lifting rod; the punching head lifting rod vertically penetrates the machine body, the lower end of the punching head lifting rod is connected to the punching head lifting rod driving mechanism, and the punching head lifting rod driving mechanism is used to drive the punching head lifting rod to move up and down in the machine body; the upper end of the punching head lifting rod is connected to the punching head mounting plate; the upper end of the punching head mounting shaft is connected to the punching head mounting plate, and the lower end of the punching head mounting shaft is connected to the punching head; the punching head mounting shaft is a hollow shaft, so that the lower end of the pressing shaft can pass through the punching head mounting shaft.

[0018] Furthermore, the pressing shaft lifting mechanism includes a pressing shaft mounting plate and a pressing shaft lifting rod; the pressing shaft lifting rod vertically penetrates the machine body and the punching head mounting plate, the lower end of the pressing shaft lifting rod is connected to the pressing shaft lifting rod driving mechanism, and the pressing shaft lifting rod driving mechanism is used to drive the pressing shaft lifting rod to move up and down in the machine body and the punching head mounting plate; the upper end of the pressing shaft lifting rod is connected to the pressing shaft mounting plate; the upper end of the pressing shaft is connected to the pressing shaft mounting plate, the lower end of the pressing shaft penetrates the punching head mounting shaft and the punching head, and can move up and down in the punching head mounting shaft and the punching head.

[0019] Furthermore, the punching head lifting rod driving mechanism includes a second swing rod, a second lifting connecting rod, a second cam and a second guide wheel;

[0020] The rear end of the second rocker arm is rotatably set on the second rotating shaft and can rotate in the vertical direction; the middle part of the second rocker arm is movably connected with the lower end of the second lifting link, and the upper end of the second lifting link is movably connected with the lower end of the punching head lifting link; the second guide wheel is rotatably set on the side of the second rocker arm and is located at the front end of the second rocker arm; the side of the second cam is provided with an annular groove one, and the annular groove one is set along the edge of the second cam; the second guide wheel is placed in the annular groove one and can move in the annular groove one.

[0021] Furthermore, the pressing shaft lifting rod driving mechanism includes a rocker rod three, a lifting connecting rod three, a cam three and a guide wheel three;

[0022] The front end of the rocker arm three is rotatably arranged on the rotating shaft three, and can rotate in the vertical direction; the rear end of the rocker arm three is movably connected to the lower end of the lifting link three, and the upper end of the lifting link three is movably connected to the lower end of the pressing shaft lifting link; the guide wheel three is rotatably arranged on the side of the rocker arm three, located in the middle of the rocker arm three; the side surface of the cam three is provided with an annular groove two, and the annular groove two is arranged along the edge of the cam three; the guide wheel three is placed in the annular groove two, and can move in the annular groove two.

[0023] Furthermore, a clamping sleeve installation groove is provided at the top of the positioning plate; a clamping sleeve is provided in the clamping sleeve installation groove; and the axis of the center hole of the clamping sleeve coincides with the axis of the positioning hole.

[0024] Furthermore, the pressing shaft is a hollow shaft, and the upper end of the pressing shaft is connected to an air source.

[0025] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0026] In the present invention, the punching head moves downward, first passes through the feed hole and then inserts into the punching hole, so that a part of the paper strip can be punched into a circular bottom paper; then the lower end of the pressing shaft moves downward, passes through the feed hole and the punching hole to push the circular bottom paper into the battery barrel, and the bottom paper barrel entry operation is completed. The bottom paper punching and barrel entry mechanism of the present invention can complete the bottom paper cutting and bottom paper barrel entry operations at one station, can efficiently complete the bottom paper barrel entry operation, and can effectively improve the battery production efficiency. At the same time, due to the presence of the battery barrel positioning mechanism, the pressing shaft and the battery barrel can be aligned. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a side view of the present invention;

[0028] Figure 2 A perspective view of the present invention;

[0029] Figure 3 It is a cross-sectional view of the positioning plate, the punching template, the bottom paper pressing plate, the punching head and the pressing shaft;

[0030] Figure 4 It is the structural diagram of the lifting shaft driving mechanism;

[0031] Figure 5 It is a structural diagram of the pressing shaft lifting rod driving mechanism;

[0032] Figure 6 It is a structural diagram of installing multiple cams on the camshaft;

[0033] Figure 7 A structural diagram showing a clamping sleeve disposed in a positioning plate;

[0034] Figure 8 is a three-dimensional diagram of the clamping sleeve;

[0035] Fig. 9 is a cross-sectional view of the clamping sleeve;

[0036] Fig.10 This is a structural diagram of the positioning disk. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. 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.

[0039] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features of the embodiments may be combined with each other.

[0040] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0041] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0042] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] like Figures 1 to 10 As shown, the present invention discloses a bottom paper assembly device for a battery cartridge, which comprises a body 13, a battery cartridge positioning mechanism and a bottom paper punching and cutting mechanism;

[0044] The battery cartridge positioning mechanism includes a positioning plate 5 and a lifting mechanism 17; the positioning plate 5 is fixedly arranged on the body 13, and a positioning hole 501 vertically penetrating the positioning plate 5 is opened on the positioning plate 5; the lifting mechanism 17 is located below the positioning plate 5, and the lifting mechanism 17 is used to push the battery cartridge upward so that the upper end of the battery cartridge is inserted into the positioning hole 501;

[0045] The bottom paper punching and feeding mechanism comprises a punching template 4, a bottom paper pressing plate 3, a punching head 2 and a pressing shaft 1;

[0046] The punching template 4 is provided with a punching hole 401 which vertically penetrates the punching template 4;

[0047] The bottom paper pressing plate 3 is provided with a knife feed hole 301 which vertically penetrates the bottom paper pressing plate 3;

[0048] The punching template 4 is set on the positioning plate 5 by bolts, and the bottom paper pressing plate 3 is set on the punching template 4 by bolts, and the axes of the positioning hole 501, the punching hole 401 and the feed hole 301 coincide with each other; a paper feed channel 6 is left between the bottom paper pressing plate 3 and the punching template 4;

[0049] The punching head 2 is located above the bottom paper pressing plate 3, and the lower end of the punching head 2 is cylindrical. The diameters of the feed hole 301 and the punching hole 401 match the diameter of the lower end of the punching head. The punching head 2 is arranged on the machine body 13 through a punching head lifting mechanism, and the punching head lifting mechanism is used to drive the punching head 2 to move up and down, so that the lower end of the punching head 2 can be inserted into the feed hole 301 and the punching hole 401.

[0050] The pressing shaft 1 passes through the punching head 2 and can move up and down inside the punching head 2; the pressing shaft 1 is arranged on the machine body 13 through a pressing shaft lifting mechanism, and the pressing shaft lifting mechanism is used to drive the pressing shaft 1 to move up and down, so that the lower end of the pressing shaft 1 can pass through the feed hole 301, the punching hole 401 and the positioning hole 501.

[0051] Due to the above structure, when the base paper assembly device for battery barrel of the present invention is used, the paper strip is first placed in the paper feed channel 6, so that the paper strip is clamped between the base paper pressing plate 3 and the punching template 4, and then the battery barrel is placed on the lifting mechanism 17 by means of a conveying device or manually, and the lifting mechanism 17 pushes the battery barrel to move upward, so that the upper end of the battery barrel opening is inserted into the positioning hole 501; then the punching head 2 moves downward, first penetrates the feed hole 301 and then inserts into the punching hole 401, so that a part of the paper strip can be punched into a circular base paper; then the lower end of the pressing shaft 1 moves downward again, passes through the feed hole 301, the punching hole 401 and the positioning hole 501 to push the circular base paper into the battery barrel, and the base paper entry operation is completed. When the base paper is assembled, the lifting mechanism 17 no longer continues to lift the battery barrel, so that the battery barrel can exit the positioning hole 501; the base paper punching and entry mechanism of the present invention completes the base paper cutting and base paper entry operations at one station, which can effectively improve the battery production efficiency. At the same time, the positioning plate 5 can limit the horizontal movement of the battery can, ensure that the axis of the battery can coincide with the axis of the punching hole 401, and facilitate the pressing shaft 1 to push the bottom paper into the battery can. The diameter of the positioning hole 501 matches the diameter of the battery can.

[0052] Furthermore, the lifting mechanism 17 includes a guide cylinder 171 and a lifting shaft 172, the guide cylinder 171 is vertically arranged, the lifting shaft 172 passes through the guide cylinder 171, and can move up and down in the guide cylinder 171; the lower end of the lifting shaft 172 is connected to a lifting shaft driving mechanism, and the lifting shaft driving mechanism is used to drive the lifting shaft 172 to move up and down; the axis of the lifting shaft 172 coincides with the axis of the positioning hole 501.

[0053] A linear bearing is arranged in the guide cylinder 171, and the lifting shaft 172 is movably arranged in the linear bearing. The existence of the linear bearing can reduce the friction between the guide cylinder 171 and the lifting shaft 172.

[0054] The punching head lifting mechanism includes a punching head mounting shaft 11, a punching head mounting plate 10 and a punching head lifting rod 7; the punching head lifting rod 7 vertically penetrates the machine body 13, and the lower end of the punching head lifting rod 7 is connected to the punching head lifting rod driving mechanism, and the punching head lifting rod driving mechanism is used to drive the punching head lifting rod 7 to move up and down in the machine body 13; the upper end of the punching head lifting rod 7 is connected to the punching head mounting plate 10; the upper end of the punching head mounting shaft 11 is connected to the punching head mounting plate 10, and the lower end of the punching head mounting shaft 11 is connected to the punching head 2; the punching head mounting shaft 11 is a hollow shaft, so that the lower end of the pressing shaft 1 can pass through the punching head mounting shaft 11.

[0055] The pressing shaft lifting mechanism includes a pressing shaft mounting plate 9 and a pressing shaft lifting rod 8; the pressing shaft lifting rod 8 vertically penetrates the machine body 13 and the punching head mounting plate 10, and the lower end of the pressing shaft lifting rod 8 is connected to the pressing shaft lifting rod driving mechanism, and the pressing shaft lifting rod driving mechanism is used to drive the pressing shaft lifting rod 8 to move up and down in the machine body 13 and the punching head mounting plate 10; the upper end of the pressing shaft lifting rod 8 is connected to the pressing shaft mounting plate 9; the upper end of the pressing shaft 1 is connected to the pressing shaft mounting plate 9, and the lower end of the pressing shaft 1 penetrates the punching head mounting shaft 11 and the punching head 2, and can move up and down in the punching head mounting shaft 11 and the punching head 2.

[0056] The base paper assembly device for battery can of the present invention is arranged on the support platform 14 when in use, such as Figure 1 As shown, the machine body 13 is fixedly arranged on the supporting platform 14, the guide cylinder 171 of the jacking mechanism 17 is fixedly arranged on the supporting platform 14, and the lower end of the jacking shaft 172 extends to the bottom of the supporting platform 14 and is connected to the jacking shaft driving mechanism; the punching head lifting rod 7 and the pressing shaft lifting rod 8 should also be extended to the bottom of the supporting platform 14 and connected to the punching head lifting rod driving mechanism and the pressing shaft lifting rod driving mechanism.

[0057] In the present invention, the lifting shaft driving mechanism, the punching head lifting rod driving mechanism and the pressing shaft lifting rod driving mechanism can be cylinders. The following structure can also be adopted:

[0058] In the present invention, the lifting shaft driving mechanism includes a rocker arm 1003, a lifting connecting rod 1001, a cam 1002, a guide wheel 1008 and a reset spring 1005; the rocker arm 1003 is rotatably arranged on a rotating shaft 1004 and can rotate in the vertical direction; the rotating shaft 1004 is fixedly arranged at the lower end of a connecting plate 1007, and the upper end of the connecting plate 1007 is connected to the bottom of the supporting platform 14; the rear end of the rocker arm 1003 is movably connected to the lower end of the lifting connecting rod 1001, and the upper end of the lifting connecting rod 1001 is movably connected to the lower end of the lifting shaft 172; specifically, the lifting connecting rod 1001 is movably connected to the lower end of the lifting shaft 172. The lower end of the connecting rod 1001 is hinged to the rear end of the rocker arm 1003 through a pin shaft, and the upper end of the lifting connecting rod 1001 is connected to the lower end of the jacking shaft 172 through a ball joint; the guide wheel 1008 is rotatably set on the side of the rocker arm 1003, close to the rear end of the rocker arm 1003; the cam 1002 is located below the guide wheel 1008 and contacts with the guide wheel 1008; the lower end of the return spring 1005 is connected to the front end of the rocker arm 1003, the upper end of the return spring 1005 is connected to the lower end of the spring connecting plate 1006, and the upper end of the spring connecting plate 1006 is connected to the bottom of the support platform 14.

[0059] Due to the above structure, when the cam 1002 rotates, when the raised side of the cam 1002 contacts the guide wheel 1008, the cam 1002 can push the rear end of the swing rod 1003 to rotate upward, thereby moving the lifting link 1001 upward, and then moving the lifting shaft 172 upward, thereby pushing the battery cartridge into the positioning hole. When the cam 1002 continues to rotate, the lifting shaft 172 moves downward, and the battery cartridge can exit the positioning hole; the reset spring 1005 always pulls the front end of the swing rod 1003 to rotate upward, so that the rear end of the swing rod 1003 can move downward, ensuring that the rear end of the swing rod 1003 can be reset.

[0060] In the above structure, since the protrusion height of the cam 1002 is not very high, the swing amplitude of the rocker arm 1003 is not large, and the swing amplitude of the lifting link 1001 is also small; when the rear end of the rocker arm 1003 rotates upward, the lifting link 1001 can provide an upward thrust for the lifting shaft 172, pushing the lifting shaft 172 to move upward.

[0061] In the present invention, the punching head lifting rod driving mechanism includes a second swing rod 2004, a second lifting connecting rod 2002, a second cam 2005 and a second guide wheel;

[0062] The rear end of the second swing rod 2004 is rotatably arranged on the second rotating shaft 2003 and can rotate in the vertical direction; the second rotating shaft 2003 is fixedly arranged at the lower end of the second connecting plate 2001, and the upper end of the second connecting plate 2001 is connected to the bottom of the supporting platform 14; the middle part of the second swing rod 2004 is movably connected to the lower end of the second lifting connecting rod 2002, and the upper end of the second lifting connecting rod 2002 is movably connected to the lower end of the punching head lifting rod 7; specifically, the lower end of the second lifting connecting rod 2002 is connected to the punching head lifting rod 7 through a pin shaft. The middle part of the swing rod 2004 is hinged, and the upper end of the lifting connecting rod 2002 is connected to the lower end of the punching head lifting rod 7 by means of a ball joint; the guide wheel 2 is rotatably arranged on the side of the swing rod 2004, and is located at the front end of the swing rod 2004; the side of the cam 2005 is provided with an annular groove 2006, and the annular groove 2006 is arranged along the edge of the cam 2005; the guide wheel 2 is placed in the annular groove 2006 and can move in the annular groove 2006.

[0063] Due to the above structure, the cam 2005 rotates, and when the guide wheel 2 is located on the convex side of the cam 2005 in the annular groove 1 2006, the front end of the swing rod 2004 is pushed to rotate upward, thereby causing the lifting link 2002 to move upward, and then causing the punching head lifting rod 7 to move upward, thereby driving the punching head 2 to move upward. When the cam 2005 continues to rotate, when the guide wheel 2 is located on the non-convex side of the cam 2005 in the annular groove 1 2006, the front end of the swing rod 2004 rotates downward, thereby causing the lifting link 2002 to move downward, and then causing the punching head lifting rod 7 to move downward, thereby driving the punching head 2 to move downward to punch and cut paper strips.

[0064] In the above structure, since the protrusion height of the cam 2005 is not very high, the swing amplitude of the rocker arm 2004 is not large, and the swing amplitude of the lifting link 2002 is also small; when the front end of the rocker arm 2004 rotates upward, the lifting link 2002 can provide an upward thrust for the punching head lifting rod 7, pushing the punching head lifting rod 7 to move upward.

[0065] In the present invention, the pressing shaft lifting rod driving mechanism includes a swing rod 3006, a lifting connecting rod 3001, a cam 3002 and a guide wheel 3;

[0066] The front end of the swing rod 3006 is rotatably arranged on the rotating shaft 3004 and can rotate in the vertical direction; the rotating shaft 3004 is fixedly arranged at the lower end of the connecting plate 3005, and the upper end of the connecting plate 3005 is connected to the bottom of the supporting platform 14; the rear end of the swing rod 3006 is movably connected to the lower end of the lifting link 3001, and the upper end of the lifting link 3001 is movably connected to the lower end of the pressing shaft lifting rod 8; specifically, the lower end of the lifting link 3001 is connected by a pin. It is hinged with the rear end of the rocker arm three 3006, and the upper end of the lifting connecting rod three 3001 is connected to the lower end of the pressing shaft lifting rod 8 by means of a ball joint; the guide wheel three is rotatably arranged on the side of the rocker arm three 3006, and is located in the middle of the rocker arm three 3006; an annular groove two 3003 is opened on the side of the cam three 3002, and the annular groove two 3003 is arranged along the edge of the cam three 3002; the guide wheel three is placed in the annular groove two 3003, and can move in the annular groove two 3003.

[0067] Due to the above structure, the cam 3 3002 rotates, and when the guide wheel 3 is located on the convex side of the cam 3 3002 in the annular groove 2 3003, the rear end of the swing rod 3 3006 is pushed to rotate upward, thereby causing the lifting link 3 3001 to move upward, and then causing the pressing shaft lifting rod 8 to move upward, thereby driving the pressing shaft 1 to move upward. When the cam 3 3002 continues to rotate, when the guide wheel 3 is located on the non-convex side of the cam 3 3002 in the annular groove 2 3003, the rear end of the swing rod 3 3006 rotates downward, thereby causing the lifting link 3 3001 to move downward, and then causing the pressing shaft lifting rod 8 to move downward, thereby driving the pressing shaft 1 to move downward.

[0068] In the above structure, since the protrusion height of the cam three 3002 is not very high, the swing amplitude of the rocker arm three 3006 is not large, and the swing amplitude of the lifting link three 3001 is also small; when the rear end of the rocker arm three 3006 rotates upward, the lifting link three 3001 can provide an upward thrust for the pressing shaft lifting rod 8, pushing the pressing shaft lifting rod 8 to move upward.

[0069] The cam 1 1002, cam 2 2005 and cam 3 3002 are all arranged on the same camshaft 16, and the protrusions of cam 1 1002, cam 2 2005 and cam 3 3002 are staggered from each other in the circumferential direction of the camshaft 16. The left end of the camshaft 16 is rotatably arranged at the lower end of the left connecting plate, and the right end is rotatably arranged at the lower end of the right connecting plate 15; the upper ends of the left connecting plate and the right connecting plate 15 are connected to the bottom of the support platform 14. One end of the cam mounting shaft is connected to the cam driving motor by chain drive or belt drive.

[0070] Since the cam 1 1002, the cam 2 2005 and the cam 3 3002 are arranged on the same camshaft 16, one cam driving motor can drive the pressing shaft 1, the punching head 2 and the lifting shaft to work. At the same time, the cam is an intermittent transmission mechanism, and the raised parts of the cam 1 1002, the raised parts of the cam 2 2005 and the raised parts of the cam 3 3002 are staggered from each other in the circumferential direction of the camshaft 16, so that the pressing shaft 1, the punching head 2 and the lifting shaft can be controlled to cooperate and work at a certain time interval. And the time interval can be fixed.

[0071] Furthermore, a clamping sleeve 12 installation groove is provided on the top of the positioning plate 5; a clamping sleeve 12 is provided in the clamping sleeve 12 installation groove; the axis of the center hole 1200 of the clamping sleeve 12 coincides with the axis of the positioning hole 501. The lower end of the pressing shaft 1 can first pass through the center hole 1200 of the clamping sleeve and then through the positioning hole 501.

[0072] When the lower end of the pressing shaft 1 pushes the bottom paper into the clamping sleeve 12, the clamping sleeve 12 can clamp the edge of the bottom paper on the pressing shaft 1, so that the bottom paper forms a paper bowl and wraps around the lower end of the pressing shaft 1. Then the pressing shaft 1 continues to move downward, driving the paper bowl to move downward and sending the paper bowl to the bottom of the battery tube.

[0073] If the pressing shaft 1 directly presses the bottom paper, due to the friction between the inner wall of the battery tube and the bottom paper, the edge of the formed paper bowl may be high on one side and low on the other side, or even a gap may appear on one side of the edge of the paper bowl. If there is a gap in the paper bowl, materials such as manganese and zinc may run out of the paper bowl and contact the inner wall of the battery tube. This results in poor production quality of the battery. Due to the presence of the clamping sleeve 12, the clamping sleeve 12 can make the bottom paper form a paper bowl on the pressing shaft 1 in advance, and then feed it into the battery tube, which can avoid gaps in the edge of the formed paper bowl. At the same time, the clamping sleeve 12 can clamp the edge of the paper bowl on the pressing shaft 1, which can avoid wrinkles on the edge of the paper bowl.

[0074] In the present invention, the clamping sleeve 12 includes an elastic ring 1205 and a plurality of clamping blocks 1201; the clamping blocks 1201 surround the positioning hole 501 and are spliced ​​into an annular sleeve; the elastic ring 1205 is sleeved on the outside of the annular sleeve; the clamping block 1201 can move in the installation groove of the clamping sleeve 12 along the radial direction of the annular sleeve, and the elastic ring 1205 is used to move the clamping block 1201 toward the center of the annular sleeve.

[0075] Due to the above structure, when the pressing shaft 1 passes through the center hole 1200 of the annular sleeve, it can push each clamping block 1201 to move outward in the radial direction of the clamping sleeve 12. Due to the presence of the elastic ring 1205, each clamping block 1201 moves inward in the radial direction of the clamping sleeve 12 under the action of the elastic force of the elastic ring 1205, so that the inner side of each clamping block 1201 clamps the pressing shaft 1, thereby enabling the edge of the bottom paper to be clamped on the pressing shaft 1.

[0076] The clamping block 1201 is fan-shaped so that the clamping sleeve 12 can be spliced ​​into a complete cylindrical shape, ensuring that the center hole 1200 of the clamping sleeve is a round hole, thereby ensuring that the edge of the bottom paper can be clamped on the pressing shaft 1, and wrinkles can be avoided on the edge of the paper bowl.

[0077] The inner side surface of the clamping block 1201 includes an inclined guide surface 1204 and a vertically arranged clamping surface 1203 from top to bottom; when the clamping blocks 1201 are spliced ​​together, the inner side surface of the clamping block 1201 is spliced ​​into a center hole 1200, and the center hole 1200 includes a guide hole spliced ​​by the guide surface 1204 and a clamping hole spliced ​​by the clamping surface 1203 from top to bottom; the diameter of the upper end of the guide hole is larger than the diameter of the lower end.

[0078] Due to the existence of the guide surface 1204, the pressing shaft 1 can be easily inserted into the clamping sleeve 12, and the bottom paper can also be easily formed into a paper bowl; the diameter of the upper end of the guide hole is larger than the diameter of the pressing shaft 1; the clamping surface 1203 is used to clamp the edge of the bottom paper on the pressing shaft 1.

[0079] The upper end of the guide surface 1204 is inclined outward, and the inclination angle α is 5-30°.

[0080] A groove 1202 is formed on the outer side of the clamping block 1201 ; when the clamping blocks 1201 are spliced ​​together, the groove 1202 forms an annular groove, and the elastic ring 1205 is located in the annular groove.

[0081] Due to the presence of the annular groove, it is possible to ensure that the elastic ring 1205 is stably sleeved on the outside of the clamping sleeve 12 , thereby preventing the elastic ring 1205 from moving up or down during operation and then separating from the clamping sleeve 12 .

[0082] In the present invention, the elastic ring 1205 is a rubber ring or a spring ring. The elastic ring 1205 is always in a stretched state to provide elastic force so that the clamping block 1201 always has a tendency to move inward in the radial direction so as to clamp the pressing shaft 1.

[0083] There are at least two clamping blocks 1201. Figure 8 As shown, four fan-shaped clamping blocks 1201 are provided.

[0084] A limiting groove 1206 is provided at the bottom of the clamping block 1201; when the clamping blocks 1201 are spliced ​​together, the limiting groove 1206 forms an annular limiting groove 1206; a limiting ring 502 is provided at the bottom of the mounting groove of the clamping sleeve 12, and the limiting ring 502 is located at the top of the positioning hole 501 and is concentric with the positioning hole 501; the limiting ring 502 is located in the annular limiting groove 1206, and the width of the annular limiting groove 1206 in the radial direction is greater than the width of the limiting ring 502 in the radial direction.

[0085] The presence of the limiting ring 502 can limit the radial movement distance of the clamping block, and at the same time, can ensure that the clamping block 1201 is always above the positioning hole 501, and ensure that the center hole 1200 of the clamping sleeve is coaxial with the positioning hole 501.

[0086] At least one annular bottom groove 503 is formed at the bottom of the mounting groove 7 of the clamping sleeve 12 . The annular bottom groove 503 is located outside the positioning hole 501 and is concentric with the positioning hole 501 .

[0087] Due to the presence of the annular bottom groove 503 , the contact area between the bottom of the clamping block 1201 and the bottom of the installation groove of the clamping sleeve 12 can be reduced, thereby reducing the friction between the bottom of the clamping block 1201 and the bottom of the installation groove of the clamping sleeve 12 .

[0088] like Fig.10 As shown, the mounting groove of the clamping sleeve 12 is circular, and a circle of annular bottom groove 503 is arranged at the bottom of the mounting groove of the clamping sleeve 12.

[0089] Furthermore, the pressing shaft 1 is a hollow shaft, and the upper end of the pressing shaft 1 is connected to an air source.

[0090] Due to the existence of the air source, the air entering the pressing shaft 1 can blow down the bottom paper wrapped at the lower end of the pressing shaft 1, so as to prevent the bottom paper from being brought out when the pressing shaft 1 moves upward to exit the battery tube. At the same time, it is also more conducive to the bottom paper being attached to the battery tube.

[0091] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A bottom paper assembly device for a battery can, characterized in that: It comprises a machine body (13), a battery cartridge positioning mechanism and a bottom paper punching and cutting cartridge mechanism; The battery cartridge positioning mechanism comprises a positioning plate (5) and a lifting mechanism (17); the positioning plate (5) is fixedly arranged on the machine body (13), and a positioning hole (501) vertically penetrating the positioning plate (5) is provided on the positioning plate (5); the lifting mechanism (17) is located below the positioning plate (5), and is used to push the battery cartridge upward so that the upper end of the battery cartridge is inserted into the positioning hole (501); The bottom paper punching and feeding mechanism comprises a punching template (4), a bottom paper pressing plate (3), a punching head (2) and a pressing shaft (1); The punching template (4) is provided with a punching hole (401) which vertically penetrates the punching template (4); The bottom paper pressing plate (3) is provided with a knife feed hole (301) which vertically penetrates the bottom paper pressing plate (3); The punching template (4) is arranged on a positioning plate (5), the bottom paper pressing plate (3) is arranged on the punching template (4), and a paper feeding channel (6) is left between the bottom paper pressing plate (3) and the punching template (4); The punching head (2) is located above the bottom paper pressing plate (3), and the punching head (2) is arranged on the machine body (13) via a punching head lifting mechanism, and the punching head lifting mechanism is used to drive the punching head (2) to move up and down, so that the lower end of the punching head (2) can be inserted into the feed hole (301) and the punching hole (401); The pressing shaft (1) passes through the punching head (2) and is capable of moving up and down inside the punching head (2); the pressing shaft (1) is arranged on the machine body (13) via a pressing shaft lifting mechanism, and the pressing shaft lifting mechanism is used to drive the pressing shaft (1) to move up and down, so that the lower end of the pressing shaft (1) can pass through the feed hole (301), the punching hole (401) and the positioning hole (501); The lifting mechanism (17) comprises a guide cylinder (171) and a lifting shaft (172), wherein the guide cylinder (171) is vertically arranged, and the lifting shaft (172) passes through the guide cylinder and can move up and down inside the guide cylinder; a lifting shaft driving mechanism is connected to the lower end of the lifting shaft (172), and the lifting shaft driving mechanism is used to drive the lifting shaft to move up and down; the axis of the lifting shaft (172) coincides with the axis of the positioning hole (501).

2. The bottom paper assembly device for battery can according to claim 1, characterized in that: The lifting shaft driving mechanism comprises a rocker rod 1 (1003), a lifting connecting rod 1 (1001), a cam 1 (1002), a guide wheel 1 (1008) and a return spring (1005); The rocker arm 1 (1003) is rotatably arranged on a rotating shaft 1 (1004) and can rotate in a vertical direction; the rear end of the rocker arm 1 (1003) is movably connected to the lower end of a lifting link 1 (1001), and the upper end of the lifting link 1 (1001) is movably connected to the lower end of a lifting shaft; the guide wheel 1 (1008) is rotatably arranged on the side of the rocker arm 1 (1003) and close to the rear end of the rocker arm 1 (1003); the cam 1 (1002) is located below the guide wheel 1 (1008) and contacts the guide wheel 1 (1008); the return spring (1005) is connected to the front end of the rocker arm 1 (1003) and is used to drive the front end of the rocker arm 1 (1003) to move upward.

3. The bottom paper assembly device for battery can according to claim 1, characterized in that: The punching head lifting mechanism comprises a punching head mounting shaft (11), a punching head mounting plate (10) and a punching head lifting rod (7); the punching head lifting rod (7) vertically penetrates the machine body (13); the lower end of the punching head lifting rod (7) is connected to a punching head lifting rod driving mechanism, and the punching head lifting rod driving mechanism is used to drive the punching head lifting rod (7) to move up and down in the machine body (13); the upper end of the punching head lifting rod (7) is connected to the punching head mounting plate (10); the upper end of the punching head mounting shaft (11) is connected to the punching head mounting plate (10), and the lower end of the punching head mounting shaft (11) is connected to the punching head (2); the punching head mounting shaft (11) is a hollow shaft, so that the lower end of the pressing shaft (1) can pass through the punching head mounting shaft (11).

4. The bottom paper assembly device for battery can according to claim 3, characterized in that: The pressing shaft lifting mechanism comprises a pressing shaft mounting plate (9) and a pressing shaft lifting rod (8); the pressing shaft lifting rod (8) vertically penetrates the machine body (13) and the punching head mounting plate (10); the lower end of the pressing shaft lifting rod (8) is connected to a pressing shaft lifting rod driving mechanism; the pressing shaft lifting rod driving mechanism is used to drive the pressing shaft lifting rod (8) to move up and down in the machine body (13) and the punching head mounting plate (10); the upper end of the pressing shaft lifting rod (8) is connected to the pressing shaft mounting plate (9); the upper end of the pressing shaft (1) is connected to the pressing shaft mounting plate (9), the lower end of the pressing shaft (1) penetrates the punching head mounting shaft (11) and the punching head (2), and can move up and down in the punching head mounting shaft (11) and the punching head (2).

5. The bottom paper assembly device for battery can according to claim 4, characterized in that: The punching head lifting rod driving mechanism comprises a second swing rod (2004), a second lifting connecting rod (2002), a second cam (2005) and a second guide wheel; The rear end of the second swing rod (2004) is rotatably arranged on the second rotating shaft (2003) and can rotate in the vertical direction; the middle part of the second swing rod (2004) is movably connected to the lower end of the second lifting link (2002), and the upper end of the second lifting link (2002) is movably connected to the lower end of the punching head lifting rod (7); the second guide wheel is rotatably arranged on the side of the second swing rod (2004) and is located at the front end of the second swing rod (2004); the side of the second cam (2005) is provided with an annular groove (2006), and the annular groove (2006) is arranged along the edge of the second cam (2005); the second guide wheel is placed in the annular groove (2006) and can move in the annular groove (2006).

6. The bottom paper assembly device for battery can according to claim 5, characterized in that: The pressing shaft lifting rod driving mechanism comprises a rocker rod three (3006), a lifting connecting rod three (3001), a cam three (3002) and a guide wheel three; The front end of the swing rod three (3006) is rotatably arranged on the rotating shaft three (3004) and can rotate in the vertical direction; the rear end of the swing rod three (3006) is movably connected to the lower end of the lifting link three (3001), and the upper end of the lifting link three (3001) is movably connected to the lower end of the pressing shaft lifting rod (8); the guide wheel three is rotatably arranged on the side of the swing rod three (3006) and is located in the middle of the swing rod three (3006); the side of the cam three (3002) is provided with an annular groove two (3003), and the annular groove two (3003) is arranged along the edge of the cam three (3002); the guide wheel three is placed in the annular groove two (3003) and can move in the annular groove two (3003).

7. The bottom paper assembly device for battery can according to claim 1, characterized in that: A clamping sleeve installation groove (504) is provided on the top of the positioning plate (5); a clamping sleeve (12) is arranged in the clamping sleeve installation groove (504); and the axis of the central hole (1200) of the clamping sleeve (12) coincides with the axis of the positioning hole (501).

8. The bottom paper assembly device for battery can according to claim 1, characterized in that: The pressing shaft (1) is a hollow shaft, and the upper end of the pressing shaft (1) is connected to an air source.

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