Flat-push type button cell pin insertion device and button cell packaging system

Abstract

The present invention relates to the technical field of battery production, and specifically discloses a flat-pushing type button battery pin insertion device and a button battery encapsulation system. The flat-pushing type button battery pin insertion device includes: a folding pin insertion jig mechanism for placing a sheet-shaped aluminum plastic shell and a button battery core; the folding pin insertion jig mechanism is provided with a pin with a hole; a pin driving mechanism for driving the pin with a hole to move above the sheet-shaped aluminum plastic shell; a flipping driving mechanism connected to the folding pin insertion jig mechanism for driving the folding pin insertion jig mechanism to fold, so that the sheet-shaped aluminum plastic shell is folded to form a folded aluminum plastic shell; a pin pulling driving mechanism for pulling the pin with a hole out of the folded aluminum plastic shell. The present invention provides a flat-pushing type button battery pin insertion device and a button battery encapsulation system, which can effectively solve the problem that the liquid injection hole is easily blocked by sol after the sheet-shaped aluminum plastic shell is folded and top-sealed.

Description

Technical Field

[0001] The present invention relates to the technical field of battery production, and particularly to a flat-pushing type button battery pin inserting device and a button battery encapsulation system. Background Art

[0002] Generally, a button battery includes a button battery core and an aluminum-plastic shell, and its production process is as follows:

[0003] ① Punch the rolled aluminum-plastic film into sheet-shaped aluminum-plastic shells adapted to the size of the button battery core.

[0004] ② The button battery core includes a core body and two pole tabs; place the core body in the middle position of the sheet-shaped aluminum-plastic shell, and the two pole tabs extend outside the sheet-shaped aluminum-plastic shell.

[0005] ③ Then fold the sheet-shaped aluminum-plastic shell in half so that the core body is covered by the folded sheet-shaped aluminum-plastic shell, and the two pole tabs are exposed, and the sheet-shaped aluminum-plastic shell forms a folded aluminum-plastic shell.

[0006] ④ Then perform top sealing (hot pressing and edge sealing) on the folded aluminum-plastic shell to form a liquid injection cavity for injecting electrolyte in the folded aluminum-plastic shell.

[0007] Since electrolyte needs to be injected into the liquid injection cavity subsequently, a liquid injection hole should be reserved during hot pressing and edge sealing. However, there is heat radiation during top sealing, and the heat radiation easily causes the liquid injection hole to deform, resulting in no suitable gap at the battery liquid inlet for the electrolyte to flow in (the heat radiation causes the aluminum-plastic film to sol and adhere, and due to the small volume of the button battery, it is difficult for subsequent liquid injection machines, etc. to expand the opening).

[0008] Therefore, a mechanism is needed to solve the problem that the liquid injection hole is easily blocked by sol after the sheet-shaped aluminum-plastic shell is folded and top-sealed. Summary of the Invention

[0009] An object of the present invention is to provide a flat-pushing type button battery pin inserting device and a button battery encapsulation system, which can effectively solve the problem that the liquid injection hole is easily blocked by sol after the sheet-shaped aluminum-plastic shell is folded and top-sealed.

[0010] To achieve the above object, on the one hand, the present invention provides a flat-pushing type button battery pin inserting device, including:

[0011] A folding and pin inserting jig mechanism for placing the sheet-shaped aluminum-plastic shell and the button battery core; the folding and pin inserting jig mechanism is provided with a hole-retaining pin.

[0012] A pin inserting driving mechanism for driving the hole-retaining pin to move above the sheet-shaped aluminum-plastic shell.

[0013] The flipping drive mechanism is connected to the folding pin inserting jig mechanism and is used to drive the folding pin inserting jig mechanism to fold, so that the sheet-shaped aluminum plastic shell is folded to form a folded aluminum plastic shell;

[0014] The pin pulling drive mechanism is used to pull out the pin with a hole from the folded aluminum plastic shell.

[0015] Optionally, the folding pin inserting jig mechanism further includes a fixed clamping plate fixedly arranged, a rotating clamping plate hinged to the fixed clamping plate, and a pin seat slidably connected to the fixed clamping plate;

[0016] One end of the pin with a hole is connected to the pin seat.

[0017] Optionally, the pin with a hole is magnetically connected to the pin seat.

[0018] Optionally, a transverse guide rod is fixedly arranged on one side of the fixed clamping plate close to the pin seat, and the transverse guide rod penetrates through the pin seat and is slidably connected to the pin seat.

[0019] Optionally, the pin inserting drive mechanism includes a sliding plate, two limit blocks fixedly arranged on the sliding plate, and a pin inserting cylinder with a telescopic end fixedly connected to the sliding plate;

[0020] A push-pull boss protruding downward is arranged at the bottom of the pin seat, and an interval space for the push-pull boss to insert is arranged between the two limit blocks.

[0021] Optionally, the flat-pushing button battery pin inserting device further includes a shell supply turntable, the folding pin inserting jig mechanism is fixed on the shell supply turntable, and both the pin inserting drive mechanism and the pin pulling drive mechanism are located at the peripheral positions of the shell supply turntable; the shell supply turntable is used to drive the folding pin inserting jig mechanism to rotate so that the push-pull boss enters or leaves the interval space.

[0022] Optionally, the structure of the pin pulling drive mechanism is the same as that of the pin inserting drive mechanism.

[0023] Optionally, a jacking mechanism for jacking up the pin with a hole is arranged below the pin with a hole.

[0024] Optionally, the jacking mechanism includes a jacking block located below the pin with a hole and penetrating through the fixed clamping plate, and a jacking cylinder for driving the jacking block to move up and down.

[0025] On the other hand, the present invention provides a button battery encapsulation system, including a frame body and any one of the above flat-pushing button battery pin inserting devices.

[0026] The beneficial effects of the present invention are as follows: A flat-pushing button cell pin inserting device and a button cell encapsulation system are provided. Before top sealing, a pin with a hole is inserted above the sheet-shaped aluminum-plastic shell by a pin driving mechanism, and after folding, top sealing is performed. After top sealing, the pin with a hole is pulled out by a pin pulling driving mechanism, so as to ensure that the liquid injection hole will not be blocked by heat radiation during top sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for description in the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0028] Figure 1 Structural schematic diagram of the button cell encapsulation system provided for the embodiment;

[0029] Figure 2 For Figure 1 Local enlarged schematic diagram at position A in

[0030] Figure 3 Schematic diagram of the ear shaping mechanism provided for the embodiment;

[0031] Figure 4 For Figure 3 Local enlarged schematic diagram at position B in

[0032] Figure 5 Structural schematic diagram of the lower clamping block provided for the embodiment;

[0033] Figure 6 Structural schematic diagram of the button cell core ear before shaping;

[0034] Figure 7 Structural schematic diagram of the button cell ear after shaping;

[0035] Figure 8 Structural schematic diagram of the folding pin jig mechanism when the pin with a hole is inserted provided for the embodiment;

[0036] Figure 9 For Figure 8 Local enlarged schematic diagram at position C in

[0037] Figure 10 Structural schematic diagram of the folding pin jig mechanism when the pin with a hole is pulled out provided for the embodiment.

[0038] In the figure:

[0039] 1. Frame main body;

[0040] 2. Film Feeding and Slicing Mechanism; 201. Unwinding Assembly; 202. Film Cutting Assembly;

[0041] 3. Shell Punching Mechanism; 301. Shell Punching Bottom Plate; 302. Shell Punching Die; 303. Shell Punching Cylinder;

[0042] 4. Shell Transfer Manipulator;

[0043] 5. Core Feeding Mechanism; 501. Core Feeding Turntable; 502. Core Fixing Fixture; 503. Core Picking Manipulator;

[0044] 6. Core Pressing Mechanism;

[0045] 7. Tab Shaping Mechanism;

[0046] 701. Lower Claw; 7011. Lower Clamping Block; 7012. Lower Clamping Cylinder; 7013. Protection Plate;

[0047] 702. Upper Claw; 7021. Upper Clamping Block; 7022. Upper Clamping Cylinder;

[0048] 703. Shaping Manipulator; 7031. Vertical Rotating Shaft;

[0049] 704. Shaping Platform;

[0050] 705. Core Releasing Plate;

[0051] 8. Shell Feeding Turntable;

[0052] 9. Jacking Mechanism; 901. Jacking Block; 902. Jacking Cylinder;

[0053] 10. Pin Insertion Driving Mechanism; 1001. Slide Plate; 1002. Limit Block; 1003. Pin Insertion Cylinder;

[0054] 11. Anti-Wrinkle Mechanism; 1101. Anti-Wrinkle Pressing Plate; 1102. Anti-Wrinkle Horizontal Cylinder; 1103. Anti-Wrinkle Vertical Cylinder;

[0055] 12. Edge Cutting Mechanism;

[0056] 13. Top Sealing Mechanism;

[0057] 14. Short Circuit Testing Mechanism;

[0058] 15. Sorting Mechanism; 1501. Rotary Rack; 1502. Sorting Cylinder; 1503. Sorting Suction Cup;

[0059] 16. Inkjet Coding Mechanism;

[0060] 17. Folding and Pin Insertion Fixture Mechanism; 1701. Fixed Clamping Plate; 1702. Rotating Clamping Plate; 1703. Pin Base; 1704. Hole-Retaining Pin; 1705. Pushing and Pulling Boss; 1706. Horizontal Guide Rod;

[0061] 18. Aluminum-plastic film; 1801. Sheet aluminum-plastic shell; 1802. Liquid injection groove;

[0062] 19. Button cell; 1901. Cell main body; 1902. Tab;

[0063] 20. Material box;

[0064] 21. Flip drive mechanism. Detailed implementation manners

[0065] To make the objectives, features, and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the embodiments described below are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0066] In the description of the present invention, it should be understood that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be an intermediate component. When a component is considered to be "disposed on" another component, it may be directly disposed on the other component or there may be an intermediate component.

[0067] In addition, the terms "long", "short", "inner", "outer", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have this specific orientation or be constructed and operated in this specific orientation. Therefore, it should not be construed as a limitation of the present invention.

[0068] The technical solutions of the present invention will be further described below with reference to the accompanying drawings and specific implementation manners.

[0069] See Figure 1 , this embodiment provides a button battery packaging system, including a frame body 1.

[0070] (1) The first part

[0071] One end of the frame body 1 is provided with a film supply slicing mechanism 2 for supplying the aluminum-plastic film 18, a shell punching mechanism 3 for punching and forming the aluminum-plastic film 18, and a shell transfer manipulator 4 for transferring the sheet aluminum-plastic shell 1801 obtained by punching.

[0072] The film supply and slicing mechanism 2 includes an unwinding assembly 201 for supplying the roll-shaped aluminum-plastic film 18 and a film cutting assembly 202 for cutting the roll-shaped aluminum-plastic film 18. Generally, the aluminum-plastic film 18 comes in a roll, and the unwinding assembly 201 supplies the film continuously. The film cutting assembly 202 includes a film cutting cylinder and a film cutting knife. When the film cutting cylinder drives the film cutting knife to move downward, the continuous aluminum-plastic film 18 can be cut off.

[0073] The shell punching mechanism 3 includes a shell punching bottom plate 301 for placing the aluminum-plastic shell, a shell punching die 302 located above the shell punching bottom plate 301, and a shell punching cylinder 303 for driving the shell punching die 302 to move up and down.

[0074] It should be noted that the shape of the shell punching die 302 matches the shape of the final button battery. The shell transfer manipulator 4 places the cut aluminum-plastic film 18 on the shell punching bottom plate 301, and then the shell punching cylinder 303 drives the shell punching die 302 to punch downward, so as to punch a liquid injection groove 1802 with an upward opening in the middle position of the aluminum-plastic film 18 (after folding and top-sealing the sheet-shaped aluminum-plastic shell 1801, the mouth of the liquid injection groove 1802 is blocked to form a liquid injection cavity), and the aluminum-plastic film 18 forms a sheet-shaped aluminum-plastic shell 1801.

[0075] So far, the preparation process of the sheet-shaped aluminum-plastic shell 1801 is completed.

[0076] (II) The second part

[0077] At the other end of the frame body 1, there is a core supply mechanism 5 for supplying the button cell 19, a core pressing mechanism 6 for flattening the tabs 1902 on the button cell 19, and an ear shaping mechanism 7 for shaping the tabs of the button cell 19.

[0078] The core supply mechanism 5 includes a core supply turntable 501 that is rotatable and located above the frame body 1, a plurality of core fixing jigs fixed on the core supply turntable 501, and a core picking manipulator for transferring the button cell 19 from the cartridge 20 to the core fixing jigs.

[0079] The core pressing mechanism 6 includes a core pressing hot plate located above the core supply turntable 501 and a core pressing cylinder for driving the core pressing hot plate to move up and down. There are three stations on the core supply turntable 501, and a set of core fixing jigs is fixedly installed at each station.

[0080] See Figures 3 to 5 , the ear shaping mechanism 7 includes a lower jaw 701 for clamping and fixing the cell body 1901, an upper jaw 702 for clamping the two tabs 1902, and a shaping manipulator 703 connected to the upper jaw 702 and driving the upper jaw 702 to move in four directions (front-back translation, up-down translation, left-right translation, and rotation around the vertical axis).

[0081] The lower clamping jaw 701 includes two relatively arranged lower clamping blocks 7011 and a lower clamping cylinder 7012 for driving the two lower clamping blocks 7011 to approach or separate from each other. The upper clamping jaw 702 includes two upper clamping blocks 7021 and an upper clamping cylinder 7022 for driving the two upper clamping blocks 7021 to approach or separate from each other.

[0082] The tab shaping mechanism 7 further includes a shaping platform 704. The shaping bracket is provided with a clamping jaw accommodating groove that penetrates up and down; the two lower clamping blocks 7011 are located in the clamping jaw accommodating groove. A core placing plate 705 for placing the battery cell main body 1901 is fixedly provided above the clamping jaw accommodating groove, and the core placing plate 705 is located between the two lower clamping blocks 7011.

[0083] The lower clamping jaw 701 is located directly below the tab 1902. A protection plate 7013 extending upward to the root of the tab 1902 (the end of the tab 1902 close to the battery cell main body 1901) is provided on the top of the lower clamping plate; the protection plate 7013 is attached to the outer side of the battery cell main body 1901. Specifically, when the upper clamping jaw 702 clamps the upper part of the button battery cell 19 to form a Z-shaped structure of the tab 1902, a clamping force will be formed on the upper part of the battery cell main body 1901. To prevent the upper clamping jaw 702 from damaging the battery cell main body 1901, the protection plate 7013 is attached to the outer side of the battery cell main body 1901. The tab 1902 is equivalent to being attached to the outer side of the protection plate 7013. The protection plate 7013 can effectively bear the clamping force exerted when the upper clamping jaw 702 clamps the tab 1902, thereby protecting the battery cell main body 1901 from being damaged.

[0084] Optionally, the protection plate 7013 has an arc-shaped structure, which is more conducive to closely fitting with the surface of the battery cell main body 1901.

[0085] Specifically, the shaping manipulator 703 is a four-axis manipulator. The shaping manipulator 703 includes a vertical rotating shaft 7031, and the upper clamping jaw 702 is fixed to the lower end of the vertical rotating shaft 7031.

[0086] Optionally, four groups of upper clamping jaws 702 are fixed on the same vertical rotating shaft 7031; correspondingly, four groups of lower clamping jaws 701 are provided on the shaping bracket. Four stations operate synchronously to improve production efficiency.

[0087] Specifically, the process of feeding and shaping is as follows:

[0088] ① At the beginning, the tab 1902 of the button battery cell 19 is in the Figure 6 shown flat plate-like structure; the core picking manipulator grabs the button battery cells 19 from the material box 20 one by one and places them into the core fixing fixture at the first station; optionally, the core picking manipulator cooperates with an industrial camera to work to achieve precise positioning;

[0089] ②When the core-fixing fixture on the first station is filled with button cells 19, the core supply turntable 501 rotates 120°, so that the core-fixing fixture containing the button cells 19 rotates to directly below the core-pressing hot pressing plate;

[0090] ③The core-pressing cylinder drives the core-pressing hot pressing plate to move downward to flatten the two pole tabs 1902 on the button cell 19;

[0091] ④After the hot pressing is completed, the core supply turntable 501 rotates 120° again, so that the hot-pressed button cell 19 rotates to directly below the upper clamping jaw 702;

[0092] ⑤The shaping manipulator 703 drives the upper clamping jaw 702 to move downward. The upper clamping jaw 702 clamps the button cell 19 from both sides without pole tabs 1902 of the button cell 19, and then the shaping manipulator 703 transfers the button cell 19 to the core placing plate 705; the upper clamping jaw 702 releases the button cell 19;

[0093] ⑥Next, the lower clamping cylinder 7012 drives the two lower clamping blocks 7011 to close in and clamp the cell main body 1901;

[0094] ⑦Then the shaping manipulator 703 drives the upper clamping jaw 702 to rotate 90° around the vertical axis, so that the two clamping jaws of the upper clamping jaw 702 rotate to directly above the two pole tabs 1902 of the button cell 19;

[0095] ⑧Then the shaping manipulator 703 drives the upper clamping jaw 702 to move downward. When the upper clamping jaw 702 touches the pole tab 1902, the shaping manipulator 703 continues to drive the upper clamping jaw 702 to move downward, and at the same time the upper clamping jaw 702 contracts and clamps, so that the flat plate-shaped pole tab 1902 can be formed into Figure 7 the Z-shaped structure shown.

[0096] So far, the process of shaping the pole tabs of the button cell 19 is completed.

[0097] (III) The third part

[0098] Refer to Figure 1 , a rotatable shell supply turntable 8 is provided between the shell transfer manipulator 4 and the core supply turntable 501.

[0099] The periphery of the shell supply turntable 8 is successively provided with an upper shell pin insertion station with a lifting mechanism 9 and a pin driving mechanism 10, a semi-folded shell station with a wrinkle prevention mechanism 11, a trimming station with a trimming mechanism 12, a core insertion station opposite to the core supply turntable 501, a top sealing station with a top sealing mechanism 13, a testing station with a short circuit testing mechanism 14, a pin pulling station with a pin pulling driving mechanism, and a sorting station with a sorting mechanism 15 along the rotation direction of the shell supply turntable 8; a coding mechanism 16 is provided on one side of the sorting mechanism 15 away from the shell supply turntable 8.

[0100] A pair of folding pin jig mechanisms 17 are provided at positions corresponding to each working station on the shell supply turntable 8, and each pair of folding pin jig mechanisms 17 is connected to a flipping drive mechanism 21.

[0101] Specifically, the shell supply turntable 8, the lifting mechanism 9, the pin inserting drive mechanism 10, the pin pulling drive mechanism, etc. constitute a flat-pushing type button battery pin inserting device for realizing the plugging and unplugging process of the pin 1704 with a hole left.

[0102] (1) Upper shell pin inserting working station

[0103] See Figures 8 to 10 , the folding pin jig mechanism 17 includes a fixed clamping plate 1701 fixedly arranged, a rotating clamping plate 1702 hinged to the fixed clamping plate 1701, a pin base 1703 slidably connected to the fixed clamping plate 1701, and a pin 1704 with a hole left connected to one end of the pin base 1703.

[0104] The lifting mechanism 9 includes a lifting block 901 located below the pin 1704 with a hole left and penetrating through the fixed clamping plate 1701, and a lifting cylinder 902 for driving the lifting block 901 to move up and down.

[0105] The pin inserting drive mechanism 10 is used to drive the pin base 1703 to approach the fixed clamping plate 1701, so that the other end of the pin 1704 with a hole left moves above the fixed clamping plate 1701. In this embodiment, the pin inserting drive mechanism 10 includes a slide plate 1001, two limit blocks 1002 fixedly arranged on the slide plate 1001, and a pin inserting cylinder 1003 for driving the slide plate 1001 to approach or move away from the shell supply turntable 8.

[0106] A pushing and pulling convex platform 1705 protruding downward is provided at the bottom of the pin base 1703, and a spaced space for the pushing and pulling convex platform 1705 to insert is provided between the two limit blocks 1002. When the folding pin jig mechanism 17 rotates to the position where the pushing and pulling convex platform 1705 is located in the spaced space, the pin inserting cylinder 1003 extends, and the limit block 1002 close to the pin inserting cylinder 1003 can push the pin base 1703 towards the fixed clamping plate 1701, so that the pin 1704 with a hole left is inserted above the sheet-shaped aluminum plastic shell 1801.

[0107] Specifically, the process of the upper shell pin inserting working station is as follows:

[0108] ① At the beginning, the fixed clamping plate 1701 and the rotating clamping plate 1702 are fully opened (the fixed clamping plate 1701 and the rotating clamping plate 1702 are at 180°), the pin inserting cylinder 1003 retracts, and the pin 1704 with a hole left is withdrawn to avoid blocking the subsequent placement of the sheet-shaped aluminum plastic shell 1801;

[0109] ② The shell moving robot 4 places the stamped sheet aluminum-plastic shell 1801 on the flat fixed clamping plate 1701 and the rotating clamping plate 1702;

[0110] ③ The lifting cylinder 902 extends, and the lifting block 901 lifts the hole-retaining pin 1704, so that the position of the hole-retaining pin 1704 is higher than the position of the sheet-like aluminum-plastic shell 1801;

[0111] ④ The pin cylinder 1003 extends out, and the hole pin 1704 is inserted above the sheet-like aluminum-plastic shell 1801;

[0112] ⑤ The lifting cylinder 902 retracts, the lifting block 901 descends, and the hole-retaining pin 1704 descends to fit with the sheet-like aluminum-plastic shell 1801;

[0113] ⑥ The shell supply turntable 8 rotates, the push-pull boss 1705 leaves the spacing space, and the folding pin fixture mechanism 17 rotates to the half-folding shell station.

[0114] Optionally, the hole-retaining pin 1704 is magnetically connected to the needle seat 1703 to facilitate assembly and disassembly.

[0115] In this embodiment, a transverse guide rod 1706 is fixedly disposed on one side of the fixed splint 1701 close to the needle seat 1703, and the transverse guide rod 1706 penetrates the needle seat 1703 and is slidably connected to the needle seat 1703. It can be understood that the transverse guide rod 1706 mainly plays a guiding role, thereby ensuring that the hole-retaining needle 1704 can be stably and smoothly inserted and removed.

[0116] (2) Half-folding shell station

[0117] See also Figure 2 The anti-wrinkle mechanism 11 is located between the pin driving mechanism 10 and the trimming mechanism 12, and includes an anti-wrinkle pressure plate 1101 for pressing the folding line of the sheet aluminum-plastic shell 1801, an anti-wrinkle horizontal cylinder 1102 for driving the anti-wrinkle pressure plate 1101 to approach or move away from the sheet aluminum-plastic shell 1801, and an anti-wrinkle vertical cylinder 1103 for driving the anti-wrinkle pressure plate 1101 to move up and down.

[0118] Optionally, the flip driving mechanism 21 includes a transmission belt and a flip motor that is transmission-connected to the rotating clamping plate 1702 via the transmission belt. The rotating clamping plate 1702 can be opened / closed by controlling the direction and rotation angle of the flip motor.

[0119] Specifically, the working process of the half-folding shell station is as follows:

[0120] ① The anti-wrinkle vertical cylinder 1103 extends, so that the position of the anti-wrinkle pressing plate 1101 is higher than that of the sheet-shaped aluminum-plastic shell 1801; then the anti-wrinkle horizontal cylinder 1102 extends, so that the anti-wrinkle pressing plate 1101 approaches the folding line of the sheet-shaped aluminum-plastic shell 1801 (the folding line of the sheet-shaped aluminum-plastic shell 1801 coincides with the rotation axis of the rotating clamping plate 1702); finally, the anti-wrinkle vertical cylinder 1103 retracts, so that the anti-wrinkle pressing plate 1101 descends to press the sheet-shaped aluminum-plastic shell 1801, and the edge contour line of the anti-wrinkle pressing plate 1101 exactly coincides with the folding line of the sheet-shaped aluminum-plastic shell 1801;

[0121] ② The flipping motor rotates a certain angle, so that the rotating clamping plate 1702 rotates upward by a certain angle, and the rotating clamping plate 1702 and the fixed clamping plate 1701 form an obtuse angle structure; generally, when folding the sheet-shaped aluminum-plastic shell 1801, the area most likely to wrinkle is at the folding line, and the most likely time to wrinkle is also when the sheet-shaped aluminum-plastic shell 1801 is folded from 180° to an obtuse angle (that is, at the beginning of folding, the folding line is most likely to wrinkle). In this embodiment, since the anti-wrinkle pressing plate 1101 tightly presses the folding line, it can effectively prevent the folding line from severely wrinkling due to the rotation of the rotating clamping plate 1702. Since there is no wrinkle at the beginning of folding, even if the sheet-shaped aluminum-plastic shell 1801 is continuously folded later, it will not wrinkle;

[0122] ③ The anti-wrinkle vertical cylinder 1103 extends and the anti-wrinkle horizontal cylinder 1102 retracts, allowing the shell turntable 8 to rotate, and the folding and pinning jig mechanism 17 rotates to the trimming station.

[0123] (3) Trimming station

[0124] The trimming mechanism 12 includes a trimming cutter located above the shell turntable 8 and a trimming cylinder for driving the trimming cutter to move up and down. It can be understood that when the trimming cylinder extends, the excess corner materials on the sheet-shaped aluminum-plastic shell 1801 can be cut off. After the cutter cylinder retracts, the shell turntable 8 rotates, and the folding and pinning jig mechanism 17 rotates to the core-inserting station.

[0125] (4) Core-inserting station

[0126] Specifically, the working process of the core-inserting station is as follows:

[0127] ① The shaping manipulator 703 places the button cell 19 that has completed the tab shaping on the aluminum-plastic shell in an obtuse state;

[0128] ② The flipping motor continues to rotate, so that the rotating clamping plate 1702 continues to flip until it fits with the fixed clamping plate 1701, thereby completely folding the obtuse-state aluminum-plastic shell to form a folded aluminum-plastic shell;

[0129] ③ The shell turntable 8 rotates, and the folding and pinning jig mechanism 17 rotates to the top-sealing station.

[0130] (5) Top sealing station

[0131] The top sealing mechanism 13 can be an existing top sealing mechanism 13, which includes a top sealing hot pressing plate located above the shell supply turntable 8 and a top sealing air cylinder for driving the up and down movement of the top sealing hot pressing plate. When the top sealing air cylinder extends, the top sealing hot pressing plate moves downward, and the edge position of the folded aluminum-plastic shell can be heat-pressed and sealed through the folding and pin inserting jig mechanism 17 to form a button battery (without electrolyte injection yet).

[0132] After top sealing, the edge position of the folded aluminum-plastic shell is sealed, and a liquid injection cavity is formed at the position with a liquid injection groove 1802 in the middle, which can be used for injecting electrolyte in subsequent processes.

[0133] After completing top sealing, the shell supply turntable 8 continues to rotate, and the folding and pin inserting jig mechanism 17 rotates to the testing station.

[0134] (6) Testing station

[0135] The short-circuit testing mechanism 14 can be an existing short-circuit testing mechanism 14, including two testing probes corresponding to the two pole ears 1902 respectively and a testing air cylinder for driving the up and down movement of the two testing probes. When the testing air cylinder extends, the two testing probes are exactly docked with the two pole pieces, and the testing program can be started to perform short-circuit testing. If there is no short-circuit phenomenon, it is considered qualified in the test; if there is a short-circuit phenomenon, it is considered unqualified in the test.

[0136] After the testing is completed, the flipping motor rotates in the reverse direction, the rotating clamping plate 1702 is opened, the shell supply turntable 8 rotates, and the folding and pin inserting jig mechanism 17 rotates to the pin pulling station.

[0137] (7) Pin pulling station

[0138] The pin pulling driving mechanism (in the attached Figure 1 figure, the pin pulling driving mechanism is blocked by the sorting mechanism 15 and not shown) is used to drive the pin base 1703 away from the fixed clamping plate 1701, so that the other end of the hole-retaining inserted pin 1704 is removed from above the fixed clamping plate 1701.

[0139] It can be understood that in the upper shell pin inserting station, when the pin inserting air cylinder 1003 retracts, the limit block 1002 away from the pin inserting air cylinder 1003 can pull the push-pull boss 1705 outwards, and then pull out the hole-retaining inserted pin 1704. In this embodiment, the pin pulling driving mechanism has the same structure as the pin inserting driving mechanism 10, and the working principle of pulling out the hole-retaining inserted pin 1704 is also the same (of course, there is no need to pull out the hole-retaining inserted pin 1704 in the upper shell pin inserting station), so the pin pulling driving mechanism will not be elaborated here.

[0140] After the pin pulling driving mechanism pulls out the hole-retaining inserted pin 1704, a liquid injection hole communicating with the liquid injection cavity is left in the button battery for subsequent injection of electrolyte into the liquid injection cavity.

[0141] Let the shell supply turntable 8 continue to rotate, and the folding pin inserting jig mechanism 17 rotates to the sorting station. Of course, in some other embodiments, the pin pulling driving mechanism can also be arranged at the sorting station, below the sorting mechanism 15.

[0142] (8) Sorting station

[0143] The sorting mechanism 15 includes a rotating frame 1501, a sorting motor for driving the rotating frame 1501 to rotate around the vertical axis, a plurality of sorting cylinders 1502 and a plurality of sorting suction cups 1503. Each of the sorting cylinders 1502 is fixedly arranged on the rotating frame 1501 at intervals, and the driving end of each sorting cylinder 1502 is fixedly connected with a sorting suction cup 1503. The sorting cylinder 1502 is used to drive the sorting suction cup 1503 to move up and down.

[0144] On one side of the sorting mechanism 15 away from the shell supply turntable 8, there is a coding mechanism 16, which is used to spray identification information such as two-dimensional code / bar code on the qualified button batteries.

[0145] Optionally, a defective product temporary storage box for collecting defective products is also arranged beside the sorting mechanism 15. When the button soft package battery cell sucked by the sorting suction cup 1503 is a qualified product, the rotating frame 1501 rotates 180°, and the button soft package battery cell is placed on the coding device behind, so that the coding device can perform coding; when the button soft package battery cell sucked by the sorting suction cup 1503 is a defective product, the rotating frame 1501 rotates 90°, and the button soft package battery cell is placed on the defective product temporary storage box on the side.

[0146] After the coding is completed, the button batteries can be sent to the downstream production equipment, and thus the entire encapsulation process is completed.

[0147] It should be noted that generally, a button battery includes a button battery cell 19 and an aluminum-plastic shell. The traditional production process is as follows:

[0148] ⑤ Punch the rolled aluminum-plastic film 18 into sheet-shaped aluminum-plastic shells 1801 that are adapted to the size of the button battery cell 19;

[0149] ⑥ The button battery cell 19 includes a battery cell main body 1901 and two pole tabs 1902; place the battery cell main body 1901 in the middle position of the sheet-shaped aluminum-plastic shell 1801, and the two pole tabs 1902 extend outside the sheet-shaped aluminum-plastic shell 1801;

[0150] ⑦ Then fold the sheet-shaped aluminum-plastic shell 1801 in half, so that the battery cell main body 1901 is wrapped by the folded sheet-shaped aluminum-plastic shell 1801, and the two pole tabs 1902 are exposed, and the sheet-shaped aluminum-plastic shell 1801 forms a folded aluminum-plastic shell;

[0151] ⑧Next, fold the aluminum-plastic shell and perform top sealing (heat-pressing the edge) to form a liquid injection cavity for injecting electrolyte in the folded aluminum-plastic shell.

[0152] Since electrolyte needs to be injected into the liquid injection cavity later, a liquid injection hole should be reserved during heat-pressing the edge. However, there is heat radiation during top sealing, and the heat radiation easily causes the liquid injection hole to deform, resulting in no suitable gap at the battery liquid inlet for the electrolyte to flow in (the heat radiation causes the aluminum-plastic film 18 to sol and stick together, and considering the small volume of the button battery, it is difficult for subsequent liquid injection machines, etc. to expand the opening). Therefore, in this embodiment, the method of inserting the needle first and then performing top sealing is used to prevent such defects.

[0153] The flat-pushing type button battery needle inserting device provided in this embodiment can effectively solve the problem that the liquid injection hole is easily blocked by sol after the sheet-shaped aluminum-plastic shell is folded and top-sealed. Specifically, before top sealing, the hole-retaining needle 1704 is inserted above the sheet-shaped aluminum-plastic shell 1801 through the needle inserting driving mechanism 10. When the sheet-shaped aluminum-plastic shell 1801 is folded in half, the hole-retaining needle 1704 is inserted into the liquid injection cavity (the space occupied by the hole-retaining needle 1704 will be the liquid injection hole later). During subsequent top sealing, the hole-retaining needle 1704 can ensure that the liquid injection hole does not collapse and deform. After top sealing, the hole-retaining needle 1704 is pulled out by the needle pulling driving mechanism, that is, to avoid the deformation and sol blockage of the liquid injection hole during top sealing, and then a liquid injection hole with a stable shape is obtained, finally effectively solving the problem that the traditional liquid injection hole is easily blocked by sol.

[0154] Preferably, the end of the hole-retaining needle 1704 extends to the button battery core 19 to form a stable electrolyte flow channel between the button battery core 19 and the liquid injection cavity.

[0155] The button battery packaging system provided in this embodiment, by setting up the film supply and slicing mechanism 2, shell punching mechanism 3, edge trimming mechanism 12, core supply mechanism 5, tab shaping mechanism 7, folding and needle inserting jig mechanism 17, flipping driving mechanism 21, top sealing mechanism 13, short-circuit testing mechanism 14 and sorting mechanism 15, etc., successively performs operations such as film supply and slicing, shell punching and forming, edge material removal, tab shaping, aluminum-plastic shell folding, top sealing and edge sealing, short-circuit testing and defective product sorting, etc., thereby realizing the fully automated production of the button battery packaging process, without manual labor, reducing labor costs and improving work efficiency.

[0156] The button battery packaging system provided in this embodiment integrates the overall button battery production processes of semi-automatic equipment of current battery manufacturers, such as aluminum-plastic film shell making, battery core heat-pressing, tab folding, battery core inserting into the shell, top sealing, testing, inkjet printing, NG sorting, etc. In the processes that rely strongly on manual operation, by adopting the current mainstream vision positioning detection and dynamic positioning picking and placing configuration, the participation of people is completely replaced, making the equipment fully automated and improving the production quality of products.

[0157] The button cell packaging system provided by this embodiment can excellently be compatible with the production process of button cells. Through the reasonable layout of the structures of each process, the structure is standardized. Further, by selecting the flexible control of a four-axis manipulator in cooperation with an industrial camera, the full-automatic packaging of button cells can be excellently completed.

[0158] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A flat-push type button battery pin inserting device, characterized in that, it includes: A folding pin inserting jig mechanism for placing a sheet-shaped aluminum plastic shell and a button cell; the folding pin inserting jig mechanism is provided with a pin with a hole; A pin driving mechanism for driving the pin with a hole to move above the sheet-shaped aluminum plastic shell; A flipping driving mechanism connected to the folding pin inserting jig mechanism for driving the folding pin inserting jig mechanism to fold, so that the sheet-shaped aluminum plastic shell is folded to form a folded aluminum plastic shell; A pin pulling driving mechanism for pulling the pin with a hole out of the folded aluminum plastic shell; The folding pin inserting jig mechanism further includes a fixed clamping plate fixedly arranged, a rotating clamping plate hinged to the fixed clamping plate, and a pin seat slidably connected to the fixed clamping plate; One end of the pin with a hole is connected to the pin seat; A transverse guide rod is fixedly arranged on one side of the fixed clamping plate close to the pin seat, and the transverse guide rod penetrates through the pin seat and is slidably connected to the pin seat; The pin driving mechanism includes a sliding plate, two limit blocks fixedly arranged on the sliding plate, and a pin cylinder with a telescopic end fixedly connected to the sliding plate; A pushing and pulling boss protruding downward is arranged at the bottom of the pin seat, and a spacing space for the pushing and pulling boss to insert is arranged between the two limit blocks.

2. The flat-push type button battery pin inserting device according to claim 1, characterized in that, The pin with a hole is magnetically connected to the pin seat.

3. The flat-push type button battery pin inserting device according to claim 1, characterized in that, The flat-push type button battery pin inserting device further includes a shell supply turntable, the folding pin inserting jig mechanism is fixed on the shell supply turntable, and the pin driving mechanism and the pin pulling driving mechanism are both located at the peripheral position of the shell supply turntable; the shell supply turntable is used to drive the folding pin inserting jig mechanism to rotate so that the pushing and pulling boss enters or exits the spacing space.

4. The flat-push type button battery pin inserting device according to claim 1, characterized in that, The structure of the pin pulling driving mechanism is the same as that of the pin driving mechanism.

5. The flat-push type button battery pin inserting device according to claim 1, characterized in that, A jacking mechanism for jacking up the pin with a hole is arranged below the pin with a hole.

6. The flat-push type button battery pin inserting device according to claim 5, characterized in that, The jacking mechanism includes a jacking block located below the pin with a hole and penetrating through the fixed clamping plate and a jacking cylinder for driving the jacking block to move up and down.

7. A button battery encapsulation system includes a frame body and the flat-push type button battery pin inserting device according to any one of claims 1 to 6.

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