Cylindrical soft pack battery packaging machine

Abstract

The cylindrical soft-pack battery packaging machine provided by the present invention includes a machine base stand, a divider loading device, a testing device, a servo feeding device, a folding device, a shaping device, a sticker device, a cross glue wrapping device, a pole ear folding device, a side glue sticking device and a red and black glue wrapping device. After passing through the divider loading device and the testing device, the qualified cylindrical soft-pack battery cells that have been automatically loaded and tested are transported in an orderly manner to the folding station of the folding device, the shaping station of the shaping device, the sticker station of the sticker device, the cross glue wrapping station of the cross glue wrapping device, the pole ear folding station of the pole ear folding device, the side glue sticking station of the side glue sticking device and the red and black glue wrapping station of the red and black glue wrapping device in a progressive manner through the servo feeding device. The cells are automatically folded and shaped, stickered and glued, pole ears are automatically folded and the materials are automatically unloaded after complete packaging, thereby effectively allocating the loading and supply of the battery cells and the output after unloading, with orderly entry and exit, and effectively improving the assembly efficiency of the battery cells.

Description

Technical field

[0001] The present invention relates to a packaging technology for lithium-ion batteries, and in particular to a cylindrical soft-pack battery packaging machine. [Background Technology]

[0002] Lithium-ion batteries are widely used due to their unique performance advantages such as high voltage, high specific energy, many cycles and long storage time. In response to the huge market demand, the requirements for the performance and safety of lithium-ion batteries are becoming increasingly higher, forcing the lithium battery industry to continuously improve its technology.

[0003] In lithium battery production, after winding, the internal pole pieces and separator paper structures are relatively loose. Therefore, the lithium battery is generally required to be reshaped and packaged to make the battery cell more dense and ensure the strength of the internal structure. This can effectively prevent misalignment between the pole pieces and the separator, as well as wrinkling of the separator, during subsequent transportation and turnover, greatly improving the safety of the lithium battery.

[0004] However, in existing lithium battery production and assembly, manual or semi-automatic equipment is used for production, which requires processing steps such as testing, corner bending, shaping, sticker application, and encapsulation. In actual production, the battery cells are generally placed in the corresponding material frame for transportation and loading, and then the subsequent processing and assembly at each station are carried out, which requires a lot of manual operation. Moreover, in existing battery production lines, when loading the battery cells, the material frame and the battery cells can only be placed into the production line together. The battery cells in the material frame are removed one by one through a clamping mechanism, which often requires a lot of manual intervention, greatly reducing the efficiency of battery loading. The low degree of automation and long production time result in low overall production efficiency, relatively high costs and large production space occupation, which seriously limits the automated production of batteries. In addition, the uncertainty of human operation can lead to safety and quality issues. Especially for new employees, it takes a certain amount of time to become proficient in the operation before achieving product consistency.

[0005] Therefore, how to improve the automation level of battery cell loading, improve battery cell loading efficiency, reduce uncertainty and improve safety is an issue that the industry urgently needs to solve. [Summary of the invention]

[0006] The present invention provides a cylindrical soft-pack battery packaging machine with a high degree of automation, synchronous feeding and unloading, fast feeding and unloading speeds, accurate and controllable, stable performance, and the ability to complete automatic testing, automatic corner folding and shaping, automatic glue encapsulation, and automatic folding of tabs of battery cells in one go, effectively improving battery cell processing efficiency.

[0007] In order to achieve the above-mentioned object of the invention, the technical solution adopted by the present invention is:

[0008] The cylindrical soft-pack battery packaging machine is used for automatic loading, automatic testing, automatic corner bending and shaping, automatic encapsulation, automatic tab folding and automatic unloading of cylindrical soft-pack batteries at each station, including:

[0009] The machine base frame is placed horizontally, and its table is used to support the processing equipment at each station;

[0010] The divider loading device is installed at the side end of the machine base table, and the four-station dividing plate on it is used to automatically load the cylindrical soft-pack battery cells after winding;

[0011] The testing device is located next to the divider feeding device and is used to test the voltage and internal resistance of the cylindrical soft-pack batteries fed by the four-station divider plate in sequence;

[0012] The servo feeding device is arranged on the side of the machine base table, and progressively and orderly transports the cylindrical soft-pack battery cells tested by the test device to the corner folding station, shaping station, sticker station, cross glue wrapping station, tab folding station, side glue sticking station and red and black glue wrapping station;

[0013] A folding device, provided adjacent to the testing device, for cutting and bending the edge of the cylindrical soft-pack battery cell so that the edge fits the side wall of the cylindrical soft-pack battery cell body;

[0014] A shaping device is provided adjacent to the folding station of the folding device, and is used to round the cylindrical soft-pack battery cell by connecting the grooves on both sides that match the shaping diameter of the cylindrical soft-pack battery cell, and pressurizing and heating the cylindrical soft-pack battery cell to shape the irregular arc into a round shape;

[0015] The pasting device is arranged adjacent to the shaping station of the shaping device, and is used to stick and cover the edge of the cylindrical soft-pack battery cell after folding and shaping and the adjacent side wall with barley paper to keep the edge smooth and avoid burrs;

[0016] A cross glue wrapping device is arranged adjacent to the pasting station of the pasting device and is used to wrap glue at the position where the tab is welded to the pole piece;

[0017] The tab folding device is arranged adjacent to the glue wrapping station of the cross glue wrapping device and is used to bend the tabs on the cylindrical soft-pack battery cell according to a preset angle;

[0018] A side glue sticking device is sequentially arranged adjacent to the tab folding station of the tab folding device and is used to stick adhesive tape on the side seams of the positive and negative electrode sheets of the cylindrical soft-pack battery cells along the axial length direction of the cylindrical soft-pack battery cells;

[0019] The red and black glue wrapping device is arranged adjacent to the side glue sticking station of the side glue sticking device, and is used to wrap the two ends of the cylindrical soft-pack battery cell with red tape and black tape respectively before unloading and outputting.

[0020] Preferably, the divider loading device includes a four-station dividing plate and a cam divider, the cam divider is arranged on the lower side of the machine base stand surface, the four-station dividing plate is arranged on the upper side of the machine base stand surface, and is driven by the cam divider to the test station of the testing device.

[0021] Preferably, the testing device includes a stand plate, a probe head, a nozzle plate, a probe cylinder, a waste rejection cylinder and a waste funnel. A slider sliding along a transverse fixed slide rail is provided on the upper side of the stand plate, and the waste rejection cylinder drives the slider to move horizontally and feed. The probe head and the nozzle plate are vertically installed on the probe seat connected to the free end of the probe cylinder piston. The waste rejection cylinder drives the probe head and the nozzle plate on the lower side of the probe cylinder to move horizontally to the test station of the cylindrical soft-pack battery cell on the four-station partition plate, and the probe cylinder drives the probe head to move downward to detect the voltage and internal resistance of the cylindrical soft-pack battery cell. If the battery cell is qualified, the probe cylinder drives the probe head and the nozzle plate to move upward and reset. If the battery cell is unqualified, the nozzle plate adsorbs the cylindrical soft-pack battery cell and is driven by the waste rejection cylinder to move horizontally downward to the waste funnel for discharge.

[0022] Preferably, the servo feeding device includes a plurality of vertical plate seats fixedly connected to the side of the machine base table, a plurality of sets of longitudinal feed guide rails and sliders arranged in parallel, a longitudinal drive cylinder, a slide plate, a servo motor, a synchronous belt, a transverse feed guide rail and slider, a vertical lifting drive cylinder and a profile rod arranged along the feeding direction, and the profile rod is provided with a plurality of corresponding to the corner folding station, the shaping station, the pasting station, the cross glue wrapping station, the ear folding station and the side glue pasting station in sequence, and the cylindrical soft-pack battery cells of the test station are progressively and orderly fed to the test station in sequence. To the feeding nozzle plate of the red and black glue wrapping station, the servo motor tightens the synchronous belt and fixes it to the slide through the synchronous gear set, the transverse feed guide rail and the slider are installed on the slide, and the slider is driven by the synchronous belt, the profile rod is connected to the piston rod end of the vertical lifting drive cylinder, and the vertical lifting drive cylinder is fixedly installed on the slider corresponding to the transverse feed guide rail through the cylinder seat, the slide is slidably connected to the top of the vertical plate seat through multiple sets of longitudinal feed guide rails and sliders, and is driven by the longitudinal drive cylinder to move along the longitudinal feed.

[0023] Preferably, the folding device includes a folding pressing mechanism and a folding edge wrapping mechanism. The folding pressing mechanism presses down the cylindrical soft-pack battery cell body through a pneumatically driven forming block, and the corresponding folding edge wrapping mechanism is synchronously wrapped on the upper side by a pair of forming rollers.

[0024] Preferably, the shaping device includes a shaping pressing mechanism and a forming mechanism for longitudinally extruding the cylindrical soft-pack battery cell after folding the corners. The shaping pressing mechanism presses down the cylindrical soft-pack battery cell body through a pneumatically driven forming block, and simultaneously forms circular grooves on both sides of the forming mechanism, and performs longitudinal extrusion under pressure and temperature to round the cylindrical soft-pack battery cell.

[0025] Preferably, the sticker device includes a longitudinal paper feeding cylinder, guide rail vertical plates on both sides, a paper feeding slide, a left gripper, a right gripper and a pair of symmetrically arranged pressure plate assemblies. The left gripper and the right gripper are respectively pneumatically controlled and are placed on both sides of the paper feeding slide through vertical sliding bearings. The longitudinal paper feeding cylinder drives the left gripper and the right gripper on both sides of the paper feeding slide to clamp the barley paper and feed it to both sides of the battery cell longitudinally. The paper feeding slide is also provided with a mechanism for driving the left gripper and the right gripper to move vertically up and down, and pressing the barley paper down and attaching it to the side wall of the battery cell through the pressure plate arranged between the left gripper and the right gripper. The pressure plate assemblies corresponding to the left gripper and the right gripper respectively wrap the barley paper on the end faces of the battery cell and press it to keep the wrapping smooth and avoid protruding burrs.

[0026] Preferably, the cross glue wrapping device includes two symmetrically spaced material trays, a glue wrapping feeding assembly, a glue pressing assembly, a glue wrapping assembly and a material pressing assembly. The glue wrapping feeding assembly, the glue pressing assembly, the glue wrapping assembly and the material pressing assembly are respectively pneumatically controlled. The glue wrapping feeding assembly delivers the cross glue on the two material trays to the positive and negative pole ears at both ends of the battery cell in sequence. The glue pressing assembly presses the ends of the cross glue at the positive and negative pole ears, and then the glue wrapping assembly wraps the pole ears. The material pressing assembly presses the wrapped positive and negative pole ear tapes.

[0027] Preferably, the folding ear device includes a receiving base, a clamping assembly split front and back, a pressure plate assembly that rises and falls, and two forming assemblies symmetrically arranged on both sides of the receiving base, the clamping assembly uses the split grooves, and the pressure plate assembly presses and fixes the cylindrical soft-pack battery cell wrapped with cross glue on the receiving base through the pressure plate, and the two ends of the upper pressure plate of the pressure plate assembly are respectively provided with a left pressure block and a right pressure block that are lifted and lowered vertically for a second time to bend the positive and negative ears respectively, and a bending cylinder that drives the left pressure block and the right pressure block to press down synchronously for a second time is installed on the pressure plate of the pressure plate assembly, and the two forming assemblies press and form the bent ears through the forming blocks respectively.

[0028] Preferably, the side glue pasting device includes a double-sided glue feeding component, a pressing side glue component and a double-sided rolling and sticking component. The double-sided glue feeding component pulls the tape for pasting the side seams of the positive and negative electrodes of the cylindrical soft-pack battery cell along the axial length direction of the cylindrical soft-pack battery cell. The pressure roller arranged on the pressing side glue component along the axial length direction of the cylindrical soft-pack battery cell moves vertically downward to roll the pasted tape. The multiple groups of arc rollers on both sides of the double-sided rolling and sticking component roll and stick the tape pasted on both sides of the cylindrical soft-pack battery cell along the axial direction.

[0029] The beneficial effects of the present invention are:

[0030] The present invention uses a divider feeding device, a testing device, a servo feeding device, a folding device, a shaping device, a sticker device, a cross glue wrapping device, a pole ear folding device, a side glue sticking device and a red and black glue wrapping device to transport the qualified cylindrical soft-package battery cells that have been automatically loaded and tested to the folding station of the folding device, the shaping station of the shaping device, the sticker station of the sticker device, the cross glue wrapping station of the cross glue wrapping device, the pole ear folding station of the pole ear folding device, the side glue sticking station of the side glue sticking device and the red and black glue wrapping station of the red and black glue wrapping device in a progressive and orderly manner through the servo feeding device, and automatically folds the corners and shapes, automatically stickers and wraps glue, automatically folds the pole ears and automatically unloads after complete packaging, effectively distributes the loading and supply of the battery cells and the output after unloading, and has an orderly entry and exit, effectively improves the assembly efficiency of the battery cells, realizes synchronous control, replaces manual tray loading, saves labor costs, integrates multiple functions into one, reduces processing costs, and effectively improves the processing efficiency of the battery cells.

Brief Description of the Drawings

[0031] Figure 1 is a schematic diagram of the three-dimensional structure of an embodiment of the present invention;

[0032] Figure 2 This is an enlarged schematic diagram of the three-dimensional structure of the divider feeding device in an embodiment of the present invention;

[0033] Figure 3 This is an enlarged side view of the structure of the divider feeding device in an embodiment of the present invention;

[0034] Figure 4 is an enlarged schematic diagram of the three-dimensional structure of the testing device in an embodiment of the present invention;

[0035] Figure 5 is an enlarged schematic side view of the structure of the testing device in an embodiment of the present invention;

[0036] Figure 6 is an enlarged schematic diagram of the three-dimensional structure of the servo feeding device in an embodiment of the present invention;

[0037] Figure 7 This is an enlarged bottom view of the servo feeding device according to an embodiment of the present invention;

[0038] Figure 8 This is an enlarged schematic diagram of the rear structure of the servo feeding device in an embodiment of the present invention;

[0039] Figure 9 is an enlarged schematic diagram of the three-dimensional structure of the corner bending device in an embodiment of the present invention;

[0040] Figure 10 is an enlarged schematic diagram of the three-dimensional structure of the shaping device in an embodiment of the present invention;

[0041] Figure 11 is an enlarged schematic diagram of the three-dimensional structure of the sticker device in an embodiment of the present invention;

[0042] Figure 12 is an enlarged schematic diagram of the main structure of the sticker device in an embodiment of the present invention;

[0043] Figure 13 is an enlarged side view of the sticker device according to an embodiment of the present invention;

[0044] Figure 14 This is an enlarged schematic diagram of the three-dimensional structure of the cross glue wrapping device in an embodiment of the present invention;

[0045] Figure 15 It is an enlarged schematic diagram of the three-dimensional structure of the tab folding device in an embodiment of the present invention;

[0046] Figure 16 This is an enlarged schematic diagram of the main structure of the tab folding device in an embodiment of the present invention;

[0047] Figure 17 1 is an enlarged side view of the structure of the tab folding device according to an embodiment of the present invention;

[0048] Figure 18 It is an enlarged schematic diagram of the three-dimensional structure of the double-sided glue-coated feeding assembly on the side glue-coating device in an embodiment of the present invention;

[0049] Figure 19 It is an enlarged schematic diagram of the three-dimensional structure of the double-sided rolling and pressing components on the side glue sticking device in an embodiment of the present invention. [Specific implementation method]

[0050] Cylindrical soft pack battery packaging machine, such as Figure 1As shown, it is applied to automatic loading, automatic testing, automatic folding and shaping, automatic gluing, automatic folding of pole ears and automatic unloading of cylindrical soft-pack batteries at each station, including a base stand 1, a divider loading device 2, a testing device 3, a servo feeding device 4, a folding device 5, a shaping device 6, a sticker device 7, a cross glue wrapping device 8, a pole ear folding device 9, a side glue sticking device 10 and a red and black glue wrapping device 11. The base stand 1 is placed horizontally, and its table is used to support the processing devices of each station; the divider loading device 2 is arranged at the side end of the table of the base stand 1, and the four-station partition plate thereon is used to support Automatic loading of cylindrical soft-pack batteries after winding; the testing device 3 is arranged beside the divider feeding device 2, and is used to test the voltage and internal resistance of the cylindrical soft-pack batteries rotated and fed on the four-station separation disk in sequence; the servo feeding device 4 is arranged beside the table of the machine base stand 1, and step-by-step, the cylindrical soft-pack batteries tested by the testing device 3 are transported to the folding station, shaping station, sticker station, cross glue station, ear folding station, side glue station and red and black glue station in an orderly manner; the folding device 5 is arranged next to the testing device 3, and is used to cut the edge of the cylindrical soft-pack batteries and bending, so that the edge is fitted on the side wall of the cylindrical soft-package battery body; the shaping device 6 is adjacent to the folding station of the folding device 5, and the grooves on both sides that match the shaping diameter of the cylindrical soft-package battery are connected to form a circle, and the cylindrical soft-package battery is pressurized and heated to shape the irregular arc into a circle; the sticker device 7 is sequentially adjacent to the shaping station of the shaping device 6, and is used to stick and cover the edge of the cylindrical soft-package battery after folding and shaping and the adjacent part of the side wall with barley paper to keep the edge smooth and avoid burrs protruding; the cross glue wrapping device 8 is sequentially adjacent to the sticker station of the sticker device 7, and is used to Glue wrapping is performed at the position where the tab is welded to the electrode piece; the tab folding device 9 is sequentially arranged adjacent to the glue wrapping station of the cross glue wrapping device 8, and is used to bend the tabs on the cylindrical soft-pack battery cell according to a preset angle; the side glue sticking device 10 is sequentially arranged adjacent to the tab folding station of the tab folding device 9, and is used to stick the sealing tape on the side seams of the positive and negative electrode pieces of the cylindrical soft-pack battery cell along the axial length direction of the cylindrical soft-pack battery cell; the red and black glue wrapping device 11 is sequentially arranged adjacent to the side glue sticking station of the side glue sticking device 10, and is used to wrap the two ends of the cylindrical soft-pack battery cell with red tape and black tape respectively in a circumferential direction before unloading and outputting.

[0051] like Figures 1 to 3 As shown, the divider loading device 2 includes a four-station dividing plate 20 and a cam divider 21. The cam divider 21 is arranged on the lower side of the table top of the machine base frame 1, and the four-station dividing plate is arranged on the upper side of the table top of the machine base frame 1 and is driven by the cam divider 21 to the test station of the testing device 3.

[0052] like Figure 1 、 Figure 4 and Figure 5As shown, the testing device 3 includes a stand plate 30, a probe head 31, a nozzle plate 32, a probe cylinder 33, a waste rejection cylinder 34 and a waste funnel 35. A slider 37 is installed on the upper side of the stand plate to slide along a horizontal fixed slide rail 36. The waste rejection cylinder 34 drives the slider 37 to move horizontally and feed. The probe head 31 and the nozzle plate 32 are vertically installed on a probe seat 38 connected to the free end of the piston of the probe cylinder 33. The waste rejection cylinder 34 drives the probe The probe head 31 and the suction nozzle plate 32 on the lower side of the cylinder 33 move horizontally to the test station of the cylindrical soft-pack battery cell on the four-station partition plate, and the probe cylinder 33 drives the probe head 31 to move downward to detect the voltage and internal resistance of the cylindrical soft-pack battery cell. If the battery cell is qualified, the probe cylinder 33 drives the probe head 31 and the suction nozzle plate 32 to move upward and reset. If the battery cell is unqualified, the suction nozzle plate 32 absorbs the cylindrical soft-pack battery cell and is driven by the waste rejection cylinder 34 to move horizontally downward to the waste funnel 35 for discharge.

[0053] like Figure 1 、 Figures 6 to 8 As shown, the servo feeding device 4 includes a plurality of vertical plate seats 40 fixedly connected to the side of the machine base stand 1, a plurality of sets of longitudinal feed guide rails and sliders 41 arranged in parallel, a longitudinal drive cylinder 42, a slide plate 43, a servo motor 44, a synchronous belt 45, a transverse feed guide rail and slider 46, a vertical lifting drive cylinder 47 and a profile rod 48 arranged along the feeding direction, and the profile rod 48 is provided with a plurality of corresponding to the corner bending station, the shaping station, the sticker station, the cross glue wrapping station, the ear folding station and the side glue sticking station in sequence, and the cylindrical soft-pack battery cells of the test station are progressively and orderly fed to the The feeding nozzle plate 49 of the red and black glue wrapping station, the servo motor 44 tightens the synchronous belt 45 and fixes it on the slide 43 through the synchronous gear set, the transverse feed guide rail and the slider 46 are installed on the slide 43, and the slider 43 is driven by the synchronous belt 45, the profile rod 48 is connected to the piston rod end of the vertical lifting drive cylinder 47, the vertical lifting drive cylinder 47 is fixedly installed on the slider 46 corresponding to the transverse feed guide rail through the cylinder seat 470, the slide 43 is slidably connected to the top of the vertical plate seat 40 through multiple sets of longitudinal feed guide rails and sliders 41, and is driven by the longitudinal drive cylinder 42 to feed along the longitudinal direction.

[0054] like Figure 1 and Figure 9 As shown, the folding device 5 includes a folding pressing mechanism 50 and a folding edge wrapping mechanism 51. The folding pressing mechanism 50 presses down the cylindrical soft-pack battery cell body through a pneumatically driven forming block 500, and the corresponding folding edge wrapping mechanism 51 is synchronously wrapped on the upper side by a pair of forming rollers 510.

[0055] like Figure 1 and Figure 10As shown, the shaping device 6 includes a shaping pressing mechanism 60 and a forming mechanism 61 for longitudinally extruding the cylindrical soft-pack battery cell after folding the corners. The shaping pressing mechanism 60 presses down the cylindrical soft-pack battery cell body through the pneumatically driven forming block 600, and simultaneously forms circular grooves on both sides of the forming mechanism 61, and performs longitudinal extrusion under pressure and temperature to round the cylindrical soft-pack battery cell.

[0056] like Figure 1 、 Figure 11 to Figure 1 3, the sticker device 7 includes a longitudinal paper feeding cylinder 70, guide rail vertical plates 71 on both sides, a paper feeding slide 72, a left gripper 73, a right gripper 74 and a pair of symmetrically arranged pressure plate assemblies 9275. The left gripper 73 and the right gripper 74 are respectively pneumatically controlled and are respectively placed on both sides of the paper feeding slide 72 through vertical sliding bearings 76. The longitudinal paper feeding cylinder 70 drives the left gripper 73 and the right gripper 74 on both sides of the paper feeding slide 72 to clamp the paper. The tight barley paper is fed longitudinally to both sides of the battery cell. The paper feeding slide 72 is also provided with a left gripper 73 and a right gripper 74 that drive the vertical lifting and lowering movement, and the barley paper is pressed down and attached to the side wall of the battery cell through a pressure plate 77 set between the left gripper 73 and the right gripper 74. The pressure plate assemblies 9275 corresponding to the left gripper 73 and the right gripper 74 respectively wrap the barley paper on the end faces of both sides of the battery cell to keep the wrapping smooth and avoid protruding burrs.

[0057] like Figure 1 、 Figure 14 As shown, the cross glue wrapping device 8 includes two symmetrically spaced material trays 80, a glue wrapping feeding assembly 81, a glue pressing assembly 82, a glue wrapping assembly 83 and a material pressing assembly 84. The glue wrapping feeding assembly 81, the glue pressing assembly 82, the glue wrapping assembly 83 and the material pressing assembly 84 are respectively pneumatically controlled. The glue wrapping feeding assembly 81 delivers the cross glue on the two material trays 80 to the positive and negative pole ears at both ends of the battery cell in turn. The glue pressing assembly 82 presses the ends of the cross glue at the positive and negative pole ears, and the glue wrapping assembly 83 wraps the pole ears. The material pressing assembly 84 presses the wrapped positive and negative pole ear tapes.

[0058] like Figure 1 、 Figure 1 5 to Figure 1As shown in Figure 7, the folding ear device 9 includes a receiving base 90, a clamping assembly 91 that is split front and back, a pressure plate assembly 92 that is lifted up and down, and two forming assemblies 93 that are symmetrically arranged on both sides of the receiving base 90. The clamping assembly 91 presses and fixes the cylindrical soft-pack battery cell wrapped with cross glue on the receiving base 90 through the split grooves, and the pressure plate assembly 92 presses and fixes the cylindrical soft-pack battery cell wrapped with cross glue on the receiving base 90 through the pressure plate 920. The two ends of the pressure plate 920 on the pressure plate assembly 92 are also respectively provided with a left pressure block 94 and a right pressure block 95 that are lifted and lowered vertically for a second time and bend the positive and negative ears respectively. A bending cylinder 96 is installed on the pressure plate 920 of the pressure plate assembly 92 to drive the left pressure block 94 and the right pressure block 95 to perform a synchronous secondary downward pressing action. The two forming assemblies 93 press and form the bent ears through the forming blocks 930 respectively.

[0059] like Figure 1 、 Figure 1 8 and Figure 19 As shown, the side glue sticking device 10 includes a double-sided glue feeding component 100, a pressing side glue component 101 and a double-sided rolling and sticking component 102. The double-sided glue feeding component 100 pulls the tape for sticking the side seams of the positive and negative electrodes of the cylindrical soft-pack battery cell along the axial length direction of the cylindrical soft-pack battery cell. The pressure roller arranged along the axial length direction of the cylindrical soft-pack battery cell on the pressing side glue component 101 moves vertically downward to roll the sticking tape. The multiple groups of arc rollers 1020 on both sides of the double-sided rolling and sticking component 102 roll and stick the tapes stuck on both sides of the cylindrical soft-pack battery cell along the axial direction.

[0060] The above-described embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Except for the cases listed in the specific embodiments, all equivalent changes made according to the shape, structure and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. Cylindrical soft pack battery packaging machine, used for automatic loading, automatic testing, automatic corner bending and shaping, automatic encapsulation, automatic tab folding and automatic unloading of cylindrical soft pack batteries at each station, characterized by: include: The machine base frame is placed horizontally, and its table is used to support the processing equipment at each station; The divider loading device is installed at the side end of the machine base table, and the four-station dividing plate on it is used to automatically load the cylindrical soft-pack battery cells after winding; The testing device is located next to the divider feeding device and is used to test the voltage and internal resistance of the cylindrical soft-pack batteries fed by the four-station divider plate in sequence; The servo feeding device is arranged on the side of the machine base table, and progressively and orderly transports the cylindrical soft-pack battery cells tested by the test device to the corner folding station, shaping station, sticker station, cross glue wrapping station, tab folding station, side glue sticking station and red and black glue wrapping station; A folding device, provided adjacent to the testing device, for cutting and bending the edge of the cylindrical soft-pack battery cell so that the edge fits the side wall of the cylindrical soft-pack battery cell body; A shaping device is provided adjacent to the folding station of the folding device, and is used to round the cylindrical soft-pack battery cell by connecting the grooves on both sides that match the shaping diameter of the cylindrical soft-pack battery cell, and pressurizing and heating the cylindrical soft-pack battery cell to shape the irregular arc into a round shape; A pasting device is sequentially arranged adjacent to the shaping station of the shaping device, and is used to cover the corners and edges of the shaped cylindrical soft-pack battery cells and the adjacent side walls with barley paper; A cross glue wrapping device is arranged adjacent to the pasting station of the pasting device and is used to wrap glue at the position where the tab is welded to the pole piece; The tab folding device is arranged adjacent to the glue wrapping station of the cross glue wrapping device and is used to bend the tabs on the cylindrical soft-pack battery cell according to a preset angle; A side glue sticking device is sequentially arranged adjacent to the tab folding station of the tab folding device and is used to stick adhesive tape on the side seams of the positive and negative electrode sheets of the cylindrical soft-pack battery cells along the axial length direction of the cylindrical soft-pack battery cells; The red and black glue wrapping device is arranged adjacent to the side glue sticking station of the side glue sticking device, and is used to wrap the two ends of the cylindrical soft-pack battery cell with red tape and black tape respectively before unloading and outputting; The divider loading device includes a four-station dividing plate and a cam divider, the cam divider is arranged on the lower side of the machine base table, the four-station dividing plate is arranged on the upper side of the machine base table, and is driven by the cam divider to the test station of the test device; The testing device includes a stand plate, a probe head, a nozzle plate, a probe cylinder, a waste rejection cylinder and a waste funnel. A slider sliding along a horizontal fixed slide rail is provided on the upper side of the stand plate, and the waste rejection cylinder drives the slider to move horizontally and feed. The probe head and the nozzle plate are vertically installed on the probe seat connected to the free end of the probe cylinder piston. The waste rejection cylinder drives the probe head and the nozzle plate on the lower side of the probe cylinder to move horizontally to the test station of the cylindrical soft-pack battery cell on the four-station partition plate, and the probe cylinder drives the probe head to move downward to detect the voltage and internal resistance of the cylindrical soft-pack battery cell. If the battery cell is qualified, the probe cylinder drives the probe head and the nozzle plate to move upward and reset. If the battery cell is unqualified, the nozzle plate adsorbs the cylindrical soft-pack battery cell and is driven by the waste rejection cylinder to move horizontally downward to the waste funnel for discharge.

2. The cylindrical soft pack battery packaging machine according to claim 1, characterized in that: The servo feeding device includes a plurality of vertical plate seats fixedly connected to the side of the machine base table, a plurality of sets of longitudinal feed guide rails and sliders arranged in parallel, a longitudinal drive cylinder, a slide plate, a servo motor, a synchronous belt, a transverse feed guide rail and slider, a vertical lifting drive cylinder and a profile rod arranged along the feeding direction. The profile rod is provided with a plurality of corresponding to the corner folding station, the shaping station, the sticker station, the cross glue wrapping station, the ear folding station and the side glue sticking station in sequence, and the cylindrical soft-pack battery cells of the test station are progressively and orderly fed to the packaging station. The feeding nozzle plate of the red and black glue station, the servo motor tightens the synchronous belt and fixes it to the slide through the synchronous gear set, the transverse feed guide rail and the slider are installed on the slide, and the slider is driven by the synchronous belt, the profile rod is connected to the piston rod end of the vertical lifting drive cylinder, the vertical lifting drive cylinder is fixedly installed on the slider corresponding to the transverse feed guide rail through the cylinder seat, the slide is slidably connected to the top of the vertical plate seat through multiple sets of longitudinal feed guide rails and sliders, and is driven by the longitudinal drive cylinder to move along the longitudinal feed.

3. The cylindrical soft pack battery packaging machine according to claim 1, characterized in that: The corner folding device includes a corner pressing mechanism and a corner wrapping mechanism. The corner pressing mechanism presses down the cylindrical soft-pack battery cell body through a pneumatically driven forming block, and the upper side of the corresponding corner wrapping mechanism is synchronously wrapped by a pair of forming rollers.

4. The cylindrical soft pack battery packaging machine according to claim 1, characterized in that: The shaping device includes a shaping pressing mechanism and a forming mechanism for longitudinally extruding the cylindrical soft-pack battery cell after folding the corners. The shaping pressing mechanism presses down the cylindrical soft-pack battery cell body through a pneumatically driven forming block, and simultaneously forms circular grooves on both sides of the forming mechanism, and performs longitudinal extrusion under pressure and temperature to round the cylindrical soft-pack battery cell.

5. The cylindrical soft pack battery packaging machine according to claim 1, characterized in that: The sticker device includes a longitudinal paper feeding cylinder, guide rail vertical plates on both sides, a paper feeding slide, a left gripper, a right gripper and a pair of symmetrically arranged pressure plate assemblies. The left gripper and the right gripper are respectively pneumatically controlled and are placed on both sides of the paper feeding slide through vertical sliding bearings. The longitudinal paper feeding cylinder drives the left gripper and the right gripper on both sides of the paper feeding slide to clamp the barley paper and feed it to both sides of the battery cell longitudinally. The paper feeding slide is also provided with a device for driving the left gripper and the right gripper to move vertically up and down, and pressing the barley paper down and attaching it to the side wall of the battery cell through the pressure plate arranged between the left gripper and the right gripper. The pressure plate assemblies corresponding to the left gripper and the right gripper respectively wrap and press the barley paper on the end faces of both sides of the battery cell.

6. The cylindrical soft pack battery packaging machine according to claim 1, characterized in that: The cross glue wrapping device includes two symmetrically spaced material trays, a glue wrapping feeding assembly, a glue pressing assembly, a glue wrapping assembly and a material pressing assembly. The glue wrapping feeding assembly, the glue pressing assembly, the glue wrapping assembly and the material pressing assembly are respectively pneumatically controlled. The glue wrapping feeding assembly delivers the cross glue on the two material trays to the positive and negative tabs at both ends of the battery cell in sequence. The glue pressing assembly presses the ends of the cross glue at the positive and negative tabs, and then the glue wrapping assembly wraps the tabs. The material pressing assembly presses the wrapped positive and negative tab tapes.

7. The cylindrical soft pack battery packaging machine according to claim 1, characterized in that: The folding ear device includes a receiving base, a clamping assembly split front and back, a pressure plate assembly that rises and falls, and two forming assemblies symmetrically arranged on both sides of the receiving base, the clamping assembly uses the split grooves, and the pressure plate assembly presses and fixes the cylindrical soft-pack battery cell wrapped with cross glue on the receiving base through the pressure plate, and the two ends of the upper pressure plate of the pressure plate assembly are respectively provided with a left pressure block and a right pressure block that are lifted and lowered vertically for a second time to bend the positive and negative ears respectively, and a bending cylinder that drives the left pressure block and the right pressure block to synchronously press down for a second time is installed on the pressure plate of the pressure plate assembly, and the two forming assemblies press and form the bent ears through the forming blocks respectively.

8. The cylindrical soft pack battery packaging machine according to claim 1, characterized in that: The side glue pasting device includes a double-sided glue feeding component, a side glue pressing component and a double-sided rolling and sticking component. The double-sided glue feeding component pulls the tape for pasting the side seams of the positive and negative electrodes of the cylindrical soft-package battery cells along the axial length direction of the cylindrical soft-package battery cells. The pressure roller arranged on the side glue pressing component along the axial length direction of the cylindrical soft-package battery cells moves vertically downward to roll the pasting tape. The multiple groups of arc rollers on both sides of the double-sided rolling and sticking component roll and stick the tapes pasted on both sides of the cylindrical soft-package battery cells along the axial direction.

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