Flat pouch soft-pack battery packaging machine

Abstract

The application provides a planar soft package battery packaging machine, which comprises a packaging part, the packaging part comprises a rotary disc, a folding mechanism is arranged on the rotary disc, a pressing and assembling module, a cutting module, an assembling module, a first heat pressing module and a second heat pressing module are sequentially arranged in the circumferential direction of the rotary disc, the folding mechanism can synchronously rotate with the rotary disc to sequentially pass through the pressing and assembling module, the cutting module, the assembling module, the first heat pressing module and the second heat pressing module, the pressing and assembling module is arranged close to an upper and lower feeding station, and the assembling module is arranged close to an assembling station; the folding mechanism comprises a fixed cover plate and a movable cover plate, a fixed adsorption surface is arranged on the fixed cover plate, a movable adsorption surface is arranged on the movable cover plate, and the movable cover plate can rotate around a first rotating shaft so that the movable adsorption surface can be close to or away from the fixed adsorption surface. The application can realize full-automatic flow operation of aluminum plastic film folding, pressing and assembling, cutting, battery cell assembling and multi-stage heat pressing packaging.

Description

Technical Field

[0001] This invention relates to the field of battery technology, and in particular to a planar pitless soft-pack battery packaging machine. Background Technology

[0002] Pouch batteries typically have indentations punched into the aluminum-plastic film to accommodate the battery cells for encapsulation. For thinner cells, single-sided indentation or flat, pitless encapsulation can be used. However, flat, pitless encapsulation with aluminum-plastic film is mostly done with semi-automatic equipment, requiring high manual intervention and resulting in low efficiency. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a planar pitless soft-pack battery packaging machine, which can realize planar pitless packaging of soft-pack batteries.

[0004] The embodiments of the present invention are achieved through the following technical solutions: A planar pitless soft-pack battery packaging machine includes a packaging section. A first feeding unit for feeding aluminum-plastic film is provided on one side of the loading / unloading station of the packaging section, and a second feeding unit for feeding battery cells is provided on one side of the assembly station of the packaging section. The packaging section includes a rotary table with a folding mechanism. A pressing module, a cutting module, an assembly module, a first hot-pressing module, and a second hot-pressing module are sequentially arranged circumferentially on the rotary table. The folding mechanism can rotate synchronously with the rotary table to sequentially pass through the pressing module, cutting module, assembly module, first hot-pressing module, and second hot-pressing module. The pressing module is located near the loading / unloading station, and the assembly module is located near the assembly station. The folding mechanism includes a fixed cover plate and a movable cover plate. The fixed cover plate has a fixed adsorption surface, and the movable cover plate has a movable adsorption surface. The movable cover plate can rotate around a first rotating axis so that the movable adsorption surface can approach or move away from the fixed adsorption surface.

[0005] According to a preferred embodiment, the pressing module includes a first support, a first carrier plate movably disposed on the top of the first support, a first support plate extending vertically on the first carrier plate, an adjusting frame slidably mounted on the first support plate, a pressure plate mounted on the adjusting frame, the pressure plate being able to extend into the region between the fixed adsorption surface and the moving adsorption surface; a pressing cylinder and a lifting cylinder are disposed on the first carrier plate, when the pressure plate is in the region between the fixed adsorption surface and the moving adsorption surface, the pressing cylinder is used to drive the adjusting frame so that the pressure plate can move toward the fixed adsorption surface, and the lifting cylinder is used to drive the adjusting frame so that the pressure plate can move away from the fixed adsorption surface.

[0006] According to a preferred embodiment, the adjusting frame includes a transfer plate slidably mounted on the first support plate, two rotating mounting plates are spaced apart on the transfer plate, and a rotating mounting block is rotatably mounted between the two rotating mounting plates via a second rotating shaft, with the pressure plate fixedly mounted on the rotating mounting block; an arc-shaped adjusting hole is provided through the rotating mounting plate, the center of the arc of the adjusting hole being located on the central axis of the second rotating shaft; a locking screw is provided in the arc-shaped adjusting hole, and the locking screw is threadedly connected to the rotating mounting block.

[0007] According to a preferred embodiment, the end of the pressure plate facing the aluminum-plastic film is a wedge-shaped plate structure, and during the folding process of the aluminum-plastic film, the wedge-shaped surface of the wedge plate is positioned on the side facing the dynamic adsorption surface.

[0008] According to a preferred embodiment, the cutting module includes a second support, a second carrier plate is movably disposed on the top of the second support, and an upper cutter and a lower cutter are disposed opposite to each other on the second carrier plate, the upper cutter and the lower cutter being able to move closer to each other or further away from each other.

[0009] According to a preferred embodiment, the assembly module includes a third support, a second support plate movably disposed on the top of the third support, and a first gripper assembly for clamping the battery cell tabs disposed on the side of the second support plate facing the rotary table.

[0010] According to a preferred embodiment, the first feeding unit includes a feeding section, a cutting section, and a pulling section arranged in sequence. The aluminum-plastic film roll is fed from the feeding section, the strip passes through the cutting section, and the pulling section is used to pull the strip.

[0011] According to a preferred embodiment, the material pulling part includes two support plates spaced apart, a third carrier plate spanning between the two support plates, two positioning mechanisms mirror-arranged between the two support plates, and two second gripper assemblies corresponding one-to-one with the two positioning mechanisms on the support plates; the third carrier plate can be close to or far from the cutting part.

[0012] According to a preferred embodiment, the positioning mechanism includes a mounting frame that can be close to or away from the cutting part. An adjusting plate is slidably mounted on the mounting frame in the vertical direction, and a negative pressure suction plate is disposed on the top of the adjusting plate for fixing the material strip.

[0013] According to a preferred embodiment, the negative pressure suction plate is provided with an avoidance notch for avoiding the second gripper assembly.

[0014] The technical solutions of the embodiments of the present invention have at least the following advantages and beneficial effects: This invention uses a rotary table to drive a folding mechanism through each functional module in sequence, realizing a fully automated production line operation of aluminum-plastic film folding, pressing, cutting, battery cell assembly, and multi-stage hot-pressing packaging. This effectively solves the problems of high manual intervention and low efficiency in traditional planar pitless packaging. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a top view of the packaging machine provided in an embodiment of the present invention; Figure 2 A three-dimensional structural diagram of the rotary table and folding mechanism after assembly, provided in an embodiment of the present invention; Figure 3 A three-dimensional structural schematic diagram of the folding mechanism provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the assembly structure of the movable cover plate, the fixed cover plate, and the balance shaft provided in an embodiment of the present invention; Figure 5 This is a three-dimensional structural diagram of the press-fit module provided in an embodiment of the present invention; Figure 6 for Figure 5 A schematic diagram of the three-dimensional structure after the first support and the linear module have been removed. Figure 7 A schematic diagram of the assembly structure of the adjusting frame and the pressure plate provided in an embodiment of the present invention; Figure 8 for Figure 7 Exploded view of the structure shown; Figure 9 A three-dimensional structural diagram of the cutting module provided in an embodiment of the present invention; Figure 10 This is a three-dimensional structural diagram of the assembly module provided in an embodiment of the present invention; Figure 11 for Figure 10 A partially enlarged schematic diagram of the structure at point A; Figure 12 A three-dimensional structural schematic diagram of the first feeding unit provided in an embodiment of the present invention; Figure 13 This is a three-dimensional structural diagram of the material pulling part provided in an embodiment of the present invention; Figure 14 This is a three-dimensional structural diagram of the positioning structure provided in an embodiment of the present invention; Figure 15 A three-dimensional structural schematic diagram of the second gripper assembly provided in an embodiment of the present invention; Figure 16 This is a three-dimensional structural diagram of the aluminum-plastic film in an embodiment of the present invention; Figure 17 This is a schematic diagram of the battery cell structure in an embodiment of the present invention.

[0017] Icons: a- Packaging section, a1- Loading / unloading station, a2- Assembly station, b- First feeding unit, b1- Discharging section, b11- Roller, c- Second feeding unit, d- Aluminum-plastic film, d1- Packaging surface, e- Battery cell, e1- Tab, 1- Rotary disk, 2- Folding mechanism, 21- Fixed cover plate, 211- Fixed adsorption surface, 22- Moving cover plate, 221- Moving adsorption surface, 23- First rotating shaft, 24- Base plate, 241 - Bearing housing, 242- Drive rack, 25- Balance shaft, 251- Drive gear, 3- Press-fit module, 31- First support, 32- First carrier plate, 321- First support plate, 33- Adjusting bracket, 331- Rotary mounting plate, 3311- Arc adjustment hole, 332- Transfer plate, 34- Pressure plate, 341- Wedge plate, 3411- Wedge surface, 3412- Rounded corner, 35- Downward pressing cylinder, 36- Lifting cylinder 37-Second rotating shaft, 38-Rotating mounting block, 39-Limiting plate, 4-Cutting module, 41-Second support, 42-Second carrier plate, 43-Tool holder, 44-Upper tool, 45-Lower tool, 5-Assembly module, 51-Third support, 52-Second support plate, 53-First gripper assembly, 531-First gripper cylinder, 532-First gripper plate, 6-First hot pressing module, 7-Second hot pressing module, 8-First Robotic arm, b2-cutting section, b3-pulling section, 91-support plate, 92-third carrier plate, 93-positioning mechanism, 931-mounting frame, 932-adjusting plate, 933-negative pressure suction plate, 9331-avoidance notch, 94-second gripper assembly, 941-second gripper cylinder, 942-second gripper plate, 943-third gripper plate, 9431-first section, 9432-second section, 9433-third section. Detailed Implementation

[0018] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0019] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0021] Please refer to Figures 1 to 17 A planar pitless soft-pack battery packaging machine includes a packaging section a. A first feeding unit b for feeding aluminum-plastic film d is provided on one side of the loading / unloading station a1 of the packaging section a, and a second feeding unit c for feeding battery cells e is provided on one side of the assembly station a2 of the packaging section a. The packaging section a includes a rotary table 1, on which a folding mechanism 2 is provided. A pressing module 3, a cutting module 4, an assembly module 5, a first hot-pressing module 6, and a second hot-pressing module 7 are sequentially arranged circumferentially on the rotary table 1. The folding mechanism 2 can follow the rotary table. 1. The synchronous rotation passes through the pressing module 3, cutting module 4, assembly module 5, first hot pressing module 6 and second hot pressing module 7 in sequence. The pressing module 3 is set near the loading and unloading station a1, and the assembly module 5 is set near the assembly station a2. The folding mechanism 2 includes a fixed cover plate 21 and a movable cover plate 22. The fixed cover plate 21 is provided with a fixed adsorption surface 211, and the movable cover plate 22 is provided with a movable adsorption surface 221. The movable cover plate 22 can rotate around the first rotating shaft 23 so that the movable adsorption surface 221 can approach or move away from the fixed adsorption surface 211. In this embodiment, the pressing module 3 is used to cooperate with the folding mechanism 2 to form creases on the aluminum-plastic film d; the cutting module 4 is used to cut the long side opening end of the folded aluminum-plastic film d; the assembly module 5 is used to assist the battery cell e in positioning between the two encapsulation surfaces d1 of the folded aluminum-plastic film d to ensure encapsulation accuracy; the first hot pressing module 6 is used to heat seal the long side opening end of the folded aluminum-plastic film d; and the second hot pressing module 7 is used to heat seal the two short side opening ends of the folded aluminum-plastic film d.

[0022] In use, the first feeding unit b provides aluminum-plastic film d to the folding mechanism 2 at the loading and unloading station a1. The pressing mechanism cooperates with the folding mechanism 2 to fold the aluminum-plastic film d in half and form a consistent crease. Subsequently, the pressing mechanism resets, and the folding mechanism 2 rotates to the cutting module 4 under the action of the rotary table 1. At this time, the aluminum-plastic film d is in a folded state, with its long side opening facing the cutting module 4, and is cut and shaped under the action of the cutting module 4 to facilitate the subsequent encapsulation of the battery cell e. Next, the folding mechanism 2 runs to the assembly module 5, and the folding mechanism 2 opens. At this time, the aluminum-plastic film d is in an open state, and the second feeding unit c provides the battery cell e and assembles the battery cell e between the two encapsulation surfaces d1 of the folded aluminum-plastic film d. The assembly module 5 positions the battery cell e through the electrode tab e1 of the battery cell e. The folding mechanism 2 folds the two encapsulation surfaces d1 of the aluminum-plastic film d to position and clamp the battery cell e. Then, the folding mechanism 2 runs to the first hot pressing module 6 and the second hot pressing module 7 respectively to complete the heat sealing operation of the two long sides and two short sides of the folded aluminum-plastic film d. Finally, the folding mechanism 2 clamps and returns to the loading and unloading station a1, and the heat-sealed soft pack battery can be unloaded.

[0023] In this embodiment, the rotary table 1 drives the folding mechanism 2 through each functional module in sequence, realizing a fully automated production line operation of aluminum-plastic film d folding, pressing, cutting, cell e assembly and multi-level hot pressing packaging, effectively solving the problems of high manual participation and low efficiency in traditional planar pitless packaging.

[0024] like Figure 3 and Figure 4 As shown, the folding mechanism 2 includes a base plate 24 mounted on a rotary table 1, a fixed cover plate 21 fixedly mounted on the base plate 24, a bearing seat 241 mounted on the base plate 24, and a movable cover plate 22 rotatably mounted on the bearing seat 241 via a balance shaft 25. A drive gear 251 is mounted on the balance shaft 25, and a drive rack 242 meshing with the drive gear 251 is slidably mounted on the base plate 24 via a slide rail slider assembly. The drive rack 242 is driven by a cylinder mounted on the base plate 24 to realize the movement of the movable cover plate 22 relative to the fixed cover plate 21. In this embodiment, the rotation axis of the balance shaft 25 on the bearing seat 241 is coaxial with the first rotating shaft 23. In use, the fixed adsorption surface 211 and the movable adsorption surface 221 adsorb and fix the two packaging surfaces d1 of the folded aluminum-plastic film d. The aluminum-plastic film d is switched between an open state and a closed state by the rotation of the movable cover plate 22 relative to the fixed cover plate 21.

[0025] like Figure 5As shown, the pressing module 3 includes a first support 31, a first carrier plate 32 movably disposed on the top of the first support 31, a first support plate 321 extending vertically on the first carrier plate 32, an adjusting frame 33 slidably mounted on the first support plate 321 via a slide rail slider assembly, a pressure plate 34 mounted on the adjusting frame 33, the pressure plate 34 being able to extend into the area between the fixed adsorption surface 211 and the moving adsorption surface 221; a pressing cylinder 35 and a lifting cylinder 36 are disposed on the first carrier plate 32. When the pressure plate 34 is in the area between the fixed adsorption surface 211 and the moving adsorption surface 221, the pressing cylinder 35 is used to drive the adjusting frame 33 so that the pressure plate 34 can move toward the fixed adsorption surface 211, and the lifting cylinder 36 is used to drive the adjusting frame 33 so that the pressure plate 34 can move away from the fixed adsorption surface 211. In this embodiment, the first carrier plate 32 is driven by a linear module located on the top of the first support 31, allowing the first carrier plate 32 to move closer to or further away from the folding mechanism 2 corresponding to the pressing module 3. During use, when the folding mechanism 2 folds the aluminum-plastic film d, the linear module drives the first carrier plate 32, allowing the pressure plate 34 to extend between the two encapsulation surfaces d1 of the folded aluminum-plastic film d. The pressing cylinder 35 drives the adjusting frame 33, causing the pressure plate 34 to move towards the fixed adsorption surface 211. Specifically, the free end of the pressure plate 34 contacts the aluminum-plastic film d, thereby forming a stable and consistent crease during the folding process of the aluminum-plastic film d. When the moving adsorption surface 221 is about to abut the pressure plate 34, the lifting cylinder 36 drives the adjusting frame 33, causing the pressure plate 34 to move away from the fixed adsorption surface 211 and reset under the drive of the linear module. The contact between the pressure plate 34 and the aluminum-plastic film d line ensures the consistency of the creases. At the same time, the pressure plate 34 does not contact the aluminum-plastic film d during the reset process, which can prevent scratching the aluminum-plastic film d.

[0026] like Figures 6 to 8 As shown, the end of the pressure plate 34 facing the aluminum-plastic film d has a wedge-shaped plate 341 structure. During the folding process of the aluminum-plastic film d, the wedge-shaped surface 3411 of the wedge plate 341 is positioned on the side facing the dynamic adsorption surface 221. This adapts to the spatial shape between the two encapsulation surfaces d1 during the folding process of the aluminum-plastic film d, avoiding scratches between the pressure plate 34 and the aluminum-plastic film d that could damage the aluminum-plastic film d.

[0027] Furthermore, the end of the wedge plate 341 facing the aluminum-plastic film d is provided with a rounded corner 3412. This arrangement can prevent scratching of the aluminum-plastic film d.

[0028] The adjustment frame 33 includes a transfer plate 332 that is slidably mounted on the first support plate 321. Two rotating mounting plates 331 are spaced apart on the transfer plate 332. A rotating mounting block 38 is rotatably mounted between the two rotating mounting plates 331 via a second rotating shaft 37. A pressure plate 34 is fixedly mounted on the rotating mounting block 38. An arc-shaped adjustment hole 3311 is provided through the rotating mounting plate 331. The center of the arc of the arc-shaped adjustment hole 3311 is located on the central axis of the second rotating shaft 37. A locking screw (not shown in the figure) is provided inside the arc adjustment hole 3311, and the locking screw is threadedly connected to the rotating mounting block 38.

[0029] By rotating the mounting block 38 around the second rotating shaft 37, the pressing angle of the pressure plate 34 can be precisely adjusted to meet the pressing requirements of different specifications of aluminum-plastic film d. The cooperation between the arc-shaped adjustment hole 3311 and the locking screw makes the angle adjustment operation simple and the positioning reliable. After the adjustment is completed, the mounting block 38 can be fixed by the locking screw, ensuring that the angle of the pressure plate 34 remains constant during the pressing process and improving the stability of the pressing quality.

[0030] A limiting plate 39 is provided across the two rotating mounting plates 331, and the limiting plate 39 is positioned above the rotating mounting block 38. The limiting plate 39 prevents the rotating mounting block 38 from rotating at an excessive angle.

[0031] like Figure 9 As shown, the cutting module 4 includes a second support 41. A second carrier plate 42 is movably mounted on the top of the second support 41 via a slide rail slider assembly. The second carrier plate 42 is driven by a cylinder mounted on the second support 41. An upper cutter 44 and a lower cutter 45 are arranged opposite each other on the second carrier plate 42, and the upper cutter 44 and the lower cutter 45 can move closer to each other or further away from each other. Specifically, a blade holder 43 is provided on the second carrier plate 42, and the upper cutter 44 and the lower cutter 45 are mounted on the blade holder 43. In use, the long side opening end of the folded aluminum-plastic film d extends between the upper cutter 44 and the lower cutter 45. The lower cutter 45 serves as a reference, and the upper cutter 44 is driven by the cylinder on the blade holder 43 to move towards the lower cutter 45 to cut and shape the aluminum-plastic film d. Specifically, this cutting module 4 can accurately remove the excess portion of the long side opening end of the folded aluminum-plastic film d, ensuring the neatness of the appearance and the consistency of the dimensions of the packaged battery.

[0032] like Figure 10As shown, the assembly module 5 includes a third support 51. A second support plate 52 is movably mounted on the top of the third support 51 via a linear module. A first gripper assembly 53 for holding the tab e1 of the battery cell e is provided on the side of the second support plate 52 facing the rotary table 1. At the assembly station a2, the folding mechanism 2 is in the open state. At this time, the battery cell e is assembled between the two encapsulation surfaces d1 of the aluminum-plastic film d, and the first gripper assembly 53 holds the tab e1 of the battery cell e to position the battery cell e, so as to prevent the battery cell e from shifting during the subsequent folding process of the folding mechanism 2 folding the aluminum-plastic film d.

[0033] like Figure 10 and Figure 11 As shown, the first gripper assembly 53 includes a first gripper cylinder 531 disposed on the second support plate 52, and a first gripper plate 532 is mounted on the first gripper cylinder 531.

[0034] like Figure 12 As shown, the first feeding unit b includes a feeding section b1, a cutting section b2, and a pulling section b3 arranged sequentially. The aluminum-plastic film d roll is fed from the feeding section b1, passes through the cutting section b2, and the pulling section b3 pulls the roll. In this embodiment, the aluminum-plastic film d roll (not shown) is mounted on the feeding section b1 and unwound by a roller b11. The unwound roll passes through the cutting section b2, and the pulling section b3 acts on the free end of the roll to straighten it in conjunction with the cutting section b2. Subsequently, the cutting section b2 cuts the roll between the cutting section b2 and the pulling section b3 to form the aluminum-plastic film d used for packaging the battery cell e. This embodiment, through the coordinated operation of the feeding section b1, the cutting section b2, and the pulling section b3, achieves automatic feeding, fixed-length cutting, and automatic traction feeding of the aluminum-plastic film d roll, replacing the traditional manual feeding method and improving feeding efficiency and accuracy.

[0035] Specifically, such as Figure 13 As shown, the feeding section b3 includes two spaced-apart support plates 91, with a third carrier plate 92 spanning between them. Two positioning mechanisms 93 are mirror-imagely arranged between the two support plates 91. Each support plate 91 has two second gripper assemblies 94 corresponding to one of the positioning mechanisms 93. The third carrier plate 92 can move closer to or further away from the cutting section b2. In this embodiment, the third carrier plate 92 is slidably connected to one of the support plates 91 via a slide rail slider assembly. A linear module is mounted on the other support plate 91, which drives the third carrier plate 92. In use, the third carrier plate 92 drives the second gripper assembly 94 to clamp the free end of the strip, thereby pulling the strip and positioning it via the positioning mechanism 93. The aluminum-plastic film d formed by the cutting section b2 is positioned and placed in the positioning mechanism 93, awaiting subsequent loading by the first robotic arm 8 to the folding mechanism 2 at the loading / unloading station a1.

[0036] like Figure 14 As shown, the positioning mechanism 93 includes a mounting frame 931. The mounting frame 931 can move closer to or further away from the cutting section b2 via a linear module drive. An adjusting plate 932 is slidably mounted on the mounting frame 931 in the vertical direction. A negative pressure suction plate 933 is disposed on the top of the adjusting plate 932 for fixing the material strip. Specifically, after the second gripper assembly 94 clamps the material strip, it pulls the material to adsorb and fix the material strip to the adsorption plate. In this embodiment, the adjusting plate 932 can move in the vertical direction so that the two adsorption plates can be misaligned in the vertical direction, thereby realizing the alternating use of the two adsorption plates. Specifically, after the adsorption plate of one positioning mechanism 93 fixes the cut material strip, i.e., aluminum-plastic film d, the adsorption plate of the other positioning mechanism 93 also adsorbs and fixes another aluminum-plastic film d through the same linear operation process of the corresponding second gripper assembly 94, thereby improving the feeding efficiency of the aluminum-plastic film d and improving the overall production efficiency.

[0037] Furthermore, such as Figure 14 As shown, the negative pressure suction plate 933 is provided with an avoidance notch 9331 to avoid the second gripper assembly 94. Specifically, during the process of the second gripper assembly 94 clamping the material strip and making the material strip adhere to the suction plate, the suction plate moves upward in the vertical direction. The structure of the second gripper assembly 94 avoids interference with the suction plate through the avoidance notch 9331, thereby ensuring that the free end of the material strip does not excessively exceed the suction surface of the suction plate, which can save aluminum-plastic film d material.

[0038] like Figure 15 As shown, the second gripper assembly 94 includes a second gripper cylinder 941 mounted on the third carrier plate 92. A second gripper plate 942 and a third gripper plate 943 are respectively mounted on the second gripper cylinder 941. The third gripper plate 943 includes a first segment 9431, a second segment 9432, and a third segment 9433 connected in sequence. The first segment 9431 and the third segment 9433 are parallel. The first segment 9431 is mounted on the second gripper cylinder 941. The second segment 9432 and the third segment 9433 are substantially perpendicular. The third segment 9433 is parallel to the second gripper plate 942 and is positioned closer to the second gripper plate 942 than the first segment 9431. This reduces the gripping stroke of the second gripper cylinder 941, improving work efficiency, and simultaneously preventing interference between the second gripper assembly 94 and the positioning mechanism 93.

[0039] In this embodiment, the structure of the cutting part b2 is similar to that of the cutting module 4, except that the cutting part b2 also includes an upper pressing plate (not shown in the figure) and a lower pressing plate (not shown in the figure) arranged vertically opposite each other. The material strip is located between the upper pressing plate and the lower pressing plate. Both the upper pressing plate and the lower pressing plate are driven by a cylinder to move closer or further apart, so that the cutting part b2 can cooperate with the positioning mechanism 93 to fix the material strip, which facilitates the cutting of the material strip to form an aluminum-plastic film d of effective size. The cutting part b2 for cutting the material strip is prior art and will not be described in detail here.

[0040] The second feeding unit c is the feeding mechanism for the existing soft-pack battery cell e, which uses a second robotic arm, similar to the first robotic arm 8, to transfer the cell e to the folding mechanism 2.

[0041] In this embodiment, both the first hot-pressing module 6 and the second hot-pressing module 7 utilize well-known technologies in the field of soft-pack battery packaging, which will not be described in detail here.

[0042] The technical means disclosed in this invention are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this invention, and these improvements and modifications are also considered within the scope of protection of this invention.

Claims

1. A planar pitless soft-pack battery packaging machine, characterized in that, The packaged part includes a first feeding unit for feeding aluminum-plastic film on one side of the loading and unloading station of the packaged part, and a second feeding unit for feeding battery cells on one side of the assembly station of the packaged part. The packaging unit includes a rotary table with a folding mechanism. The rotary table is circumferentially arranged with a pressing module, a cutting module, an assembly module, a first hot pressing module, and a second hot pressing module. The folding mechanism can rotate synchronously with the rotary table to pass through the pressing module, the cutting module, the assembly module, the first hot pressing module, and the second hot pressing module in sequence. The pressing module is located near the loading and unloading station, and the assembly module is located near the assembly station. The folding mechanism includes a fixed cover plate and a movable cover plate. The fixed cover plate is provided with a fixed adsorption surface, and the movable cover plate is provided with a movable adsorption surface. The movable cover plate can rotate around a first rotating axis so that the movable adsorption surface can approach or move away from the fixed adsorption surface.

2. The planar pitless soft-pack battery packaging machine according to claim 1, characterized in that, The pressing module includes a first support, a first carrier plate is movably disposed on the top of the first support, a first support plate is disposed on the first carrier plate along the vertical direction, an adjustment frame is slidably mounted on the first support plate, a pressure plate is assembled on the adjustment frame, and the pressure plate can extend into the area between the fixed adsorption surface and the moving adsorption surface. The first carrier plate is equipped with a pressing cylinder and a lifting cylinder. When the pressing plate is in the area between the fixed adsorption surface and the moving adsorption surface, the pressing cylinder is used to drive the adjusting frame so that the pressing plate can move toward the fixed adsorption surface, and the lifting cylinder is used to drive the adjusting frame so that the pressing plate can move away from the fixed adsorption surface.

3. The planar pitless soft-pack battery packaging machine according to claim 2, characterized in that, The adjusting frame includes a transfer plate that is slidably mounted on the first support plate. Two rotating mounting plates are spaced apart on the transfer plate. A rotating mounting block is rotatably mounted between the two rotating mounting plates via a second rotating shaft. The pressure plate is fixedly mounted on the rotating mounting block. The rotating mounting plate is provided with a circular arc adjustment hole, and the center of the circular arc adjustment hole is located on the central axis of the second rotating shaft; A locking screw is provided inside the arc-shaped adjustment hole, and the locking screw is threadedly connected to the rotating mounting block.

4. The planar pitless soft-pack battery packaging machine according to claim 2, characterized in that, The end of the pressure plate facing the aluminum-plastic film has a wedge-shaped structure. During the folding process of the aluminum-plastic film, the wedge-shaped surface of the wedge plate is positioned on the side facing the dynamic adsorption surface.

5. The planar pitless soft-pack battery packaging machine according to claim 1, characterized in that, The cutting module includes a second support, on the top of which a second carrier plate is movably mounted. An upper cutter and a lower cutter are mounted opposite each other on the second carrier plate, and the upper cutter and the lower cutter can move closer to each other or further away from each other.

6. The planar pitless soft-pack battery packaging machine according to claim 1, characterized in that, The assembly module includes a third support, on the top of which a second support plate is movably mounted. The second support plate has a first gripper assembly for clamping the battery cell tabs on the side facing the rotary table.

7. The planar pitless soft-pack battery packaging machine according to claim 1, characterized in that, The first feeding unit includes a feeding section, a cutting section, and a pulling section arranged in sequence. The aluminum-plastic film roll is fed from the feeding section, the strip passes through the cutting section, and the pulling section is used to pull the strip.

8. The planar pitless soft-pack battery packaging machine according to claim 7, characterized in that, The material pulling part includes two support plates spaced apart, a third carrier plate spanning between the two support plates, two positioning mechanisms mirrored between the two support plates, and two second gripper assemblies corresponding one-to-one with the two positioning mechanisms on the support plates. The third carrier plate can be close to or far from the cutting section.

9. The planar pitless soft-pack battery packaging machine according to claim 8, characterized in that, The positioning mechanism includes a mounting frame that can be close to or away from the cutting part. An adjusting plate is slidably mounted on the mounting frame in the vertical direction. A negative pressure suction plate is disposed on the top of the adjusting plate for fixing the material strip.

10. The planar pitless soft-pack battery packaging machine according to claim 9, characterized in that, The negative pressure suction plate is equipped with an avoidance notch to avoid the second gripper assembly.

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