CN220358149U

CN220358149U - Cutting and forming system for soft-package battery core of lithium battery

Info

Publication number: CN220358149U
Application number: CN202320136143.XU
Authority: CN
Inventors: 袁建军
Original assignee: Hubei Jianneng New Energy Technology Co ltd
Current assignee: Hubei Jianneng New Energy Technology Co ltd
Priority date: 2023-02-07
Filing date: 2023-02-07
Publication date: 2024-01-16
Anticipated expiration: 2033-02-07

Abstract

The utility model discloses a cutting type system for a soft package battery core of a lithium battery, which comprises a die-cutting liquid extracting device (110) and a baking chamber (120), wherein the die-cutting liquid extracting device (110) comprises a rotary table (30), a die-cutting rack (31) and a cutting die, and has the advantages that: (1) the die cutting and electrolyte pumping are integrated, redundant electrolyte can be pumped away while the battery cell is cut, electrolyte is prevented from overflowing and adhering to the surface of the battery cell during process switching, and the processing efficiency and the processing quality are improved; (2) the compaction die and the movable frame are movably connected into a whole, the stacked battery cells are moved into the compaction die or taken out from the compaction die at one time through the L-shaped battery cell placing plate, the compaction die is convenient and quick, the labor intensity is reduced, the battery cells can be quickly and regularly stacked in the L-shaped battery cell placing plate, and the baking molding quality is improved.

Description

Cutting and forming system for soft-package battery core of lithium battery

Technical Field

The utility model relates to the technical field of battery production, in particular to a cutting and forming system for a soft package battery core of a lithium battery.

Background

At present, along with the wide use of electric vehicles, the demand of batteries is rapidly increased, in the process of forming the battery core of the lithium battery, the soft package battery core is required to be subjected to die cutting, liquid pumping and baking forming procedures in sequence, and the existing forming procedures have the following problems that (1) the battery core is firstly cut during die cutting, then the battery core enters a vacuumizing device to pump out redundant electrolyte, the process is relatively complex, and the electrolyte is easy to overflow and adhere to the surface of the battery core when the two procedures are switched, so that the processing quality of the battery core is affected. (2) The stacking of electric core on the baking frame is that the mold compresses tightly earlier and carries on the baking frame again, and the transport of mould is wasted time and energy, and electric core stacking is multilayer stacking, and the mould pressing is only for setting when making its toast, therefore the pressure can not be too big, and electric core surface outsourcing is comparatively smooth simultaneously, and the mould can only horizontal transport when carrying, if the slope can lead to electric core removal dislocation or the risk that drops, influences the effect of toasting shaping.

Disclosure of Invention

The utility model aims to overcome the defects and provide a cutting and forming system for a soft package battery core of a lithium battery.

The utility model comprises a die-cutting liquid extracting device and a baking chamber,

the die-cutting liquid extracting device comprises a rotary table, a die-cutting frame and a cutting die, a pair of cell positioning plates are symmetrically arranged on a movable plate of the rotary table, a cutting plate and a liquid collecting plate are respectively arranged on the cell positioning plates, an adjustable positioning plate is arranged on the cutting plate, a pair of air sucking pumps opposite to the liquid collecting plate are arranged at the bottom of the movable plate of the rotary table, a liquid discharging hole communicated with the air sucking pumps is arranged on the liquid collecting plate, the cutting die is arranged on the die-cutting frame and is positioned above the rotary table,

a storage table is arranged at the front side of the die-cutting frame;

the utility model provides a be equipped with a set of mould pressing toasting frame that is used for fixed electric core in the toasting room, mould pressing toasting frame is including removing the frame and installing a plurality of compacting tool set on removing the frame, it has a plurality of fixed plates to be array respectively to be crisscross direction on removing the frame, compacting tool set includes lower base, go up base, compacting plate and L shape electric core and place the board, the one end of lower base articulates on the fixed plate through the round pin axle, pass through a set of guide arm fixed connection between lower base and the last base, compacting plate movable mounting is on a set of guide arm between lower base and the last base, be equipped with compression screw on the last base, the horizontal end of L shape electric core is placed the board and is equipped with the handle hole, L shape electric core is placed the board and is placed on the lower base to be located the compacting plate below.

The cutting die comprises a sealing plate matched with the battery cell positioning disc and a die cutting seat matched with the cutting plate, the sealing plate is movably arranged on the die cutting frame through a pair of lifting cylinders, a die cutting seat avoiding hole is formed in the sealing plate, a punch is arranged at the bottom of the die cutting seat, and the die cutting seat is movably arranged on the sealing plate through a pair of die cutting cylinders; the height of the cutting plate is higher than that of the liquid collecting disc, a group of tooth-shaped clamping grooves are respectively arranged on two sides of the cutting plate, and plug-in blocks matched with the tooth-shaped clamping grooves for use are respectively arranged at two ends of the adjustable positioning plate.

The die cutting seat is provided with a pre-pressing plate, the bottom of the die cutting seat is provided with a pre-pressing plate mounting groove, and the pre-pressing plate is movably mounted in the groove through a group of guide rods; the bottom of the sealing plate is provided with a circle of sealing strips matched with the edge opening of the battery cell positioning disc.

The fixed disk of the rotary table is provided with a liquid collecting groove communicated with the liquid outlet of the air pump.

The bottom of the movable frame is provided with a group of universal travelling wheels, and the front end and the rear end of the movable frame are respectively provided with a pair of armrests; the two fixing plates in the transverse direction of the movable frame are arranged, and an angle limiting cross rod is arranged on the movable frame between the two fixing plates in the transverse direction.

A push rod is arranged on a fixed plate corresponding to the lower base, a push rod mounting hole is arranged on the fixed plate, one end of the push rod is hinged in the hole through a pin shaft, a torsion spring for controlling the push rod to reset is arranged on the pin shaft, and a push rod limiting groove matched with the push rod is arranged on the lower base; the width of the lower base is larger than that of the pressing plate, and a limiting protrusion matched with the L-shaped cell placing plate is arranged on the lower base at the hinged end; a side of one end of the upper part of the guide rod for connecting the lower base and the upper base is provided with a notch, and one side of the guide rod avoiding hole on the compacting plate is of a square structure matched with the notch.

The utility model has the advantages that: (1) the die cutting and electrolyte pumping are integrated, redundant electrolyte can be pumped away while the battery cell is cut, electrolyte is prevented from overflowing and adhering to the surface of the battery cell during process switching, and the processing efficiency and the processing quality are improved; (2) the compaction die and the movable frame are movably connected into a whole, the stacked battery cells are moved into the compaction die or taken out from the compaction die at one time through the L-shaped battery cell placing plate, the compaction die is convenient and quick, the labor intensity is reduced, the battery cells can be quickly and regularly stacked in the L-shaped battery cell placing plate, and the baking molding quality is improved.

Drawings

Fig. 1 is a schematic diagram of the structure of the present utility model.

Fig. 2 is a schematic structural view of a die-cutting liquid extracting device.

Fig. 3 is a schematic diagram of a cell positioning disk structure.

Fig. 4 is a schematic view of a die-cut base structure.

Fig. 5 is a schematic view of a molded barbecue grill.

Fig. 6 is a schematic view of a compacting die structure.

Fig. 7 is a schematic view of a connection structure between the lower base and the fixing plate.

Fig. 8 is a schematic view of a connection structure of the pressing plate and the guide rod.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the embodiments of the present utility model, it should be noted that, if the terms "upper," "lower," "inner," "outer," and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like in the description of the present utility model, if any, are used for distinguishing between the descriptions and not necessarily for indicating or implying a relative importance.

In the description of the embodiments of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in the drawings, the present utility model includes a die cut liquid extraction device 110 and a bake chamber 120,

the cell cuts the air bag in the die-cutting liquid extracting device 110, simultaneously extracts the flowing electrolyte during cutting, and the processed cell is sequentially stacked and fixed on the die-pressing baking frame 130 and then pushed into the baking chamber 120 for baking and shaping.

The working principle of the die-cutting liquid extracting device 110 comprises a rotary table 30, a die-cutting rack 31 and a cutting die, wherein the rotary table 30 is an electric rotary table, a pair of cell positioning plates 35 are symmetrically arranged on a movable plate of the rotary table 30 through driving of a servo motor, the rotary table 30 rotates in a reciprocating manner, and each rotation angle is 180 degrees and is used for rotating the cell positioning plates 35 to the position right below the cutting die.

The cell positioning plate 35 is respectively provided with a cutting plate 36 and a liquid collecting disc 37, the cutting plate 36 is provided with an adjustable positioning plate 38, when the cell positioning plate is used, a cell to be cut is placed on the cutting plate 36, one end of the cell is tightly attached to the adjustable positioning plate 38 for positioning, the adjustable positioning plate 38 can be adjusted according to the size of the cell, after the cell positioning plate is adjusted, when the cell is placed on the cutting plate 36, the position to be cut is just located at the joint of the cutting plate 36 and the liquid collecting disc 37, and after the cutting die moves downwards to cut the redundant part of the cell, electrolyte can smoothly flow into the liquid collecting disc 37.

The movable disk bottom of the rotary table 30 is provided with a pair of air suction pumps 39 opposite to the liquid collecting disk 37, the liquid collecting disk 37 is provided with liquid discharge holes communicated with the air suction pumps 39, and when cutting is carried out, the air suction pumps 39 are started to enable negative pressure to be formed in the cell positioning disk 35, and electrolyte in a cell cutting part is discharged along with the negative pressure. The pump 39 is a WKA series pump that can pump both air and liquid.

The cutting die is mounted on the die-cutting frame 31 and above the rotary table 30; the cutting die comprises a sealing plate 40 matched with the battery cell positioning disc 35 and a die cutting seat 41 matched with the cutting plate 36, the sealing plate 40 is movably arranged on the die cutting frame 31 through a pair of lifting air cylinders 42, die cutting seat avoiding holes are formed in the sealing plate 40, a punch 43 is arranged at the bottom of the die cutting seat 41, and the die cutting seat 41 is movably arranged on the sealing plate 40 through a pair of die cutting air cylinders 45; the sealing plate 40 is used for forming a sealing cavity in cooperation with the battery cell positioning disc 35, a circle of sealing strip is arranged in the die cutting seat avoiding hole and used for sealing between the sealing plate 40 and the die cutting seat 41, air suction in the sealing cavity is facilitated, and when the punch 43 moves downwards, the sealing plate is matched with the end part of the cutting plate 36 to cut the battery cell. In actual installation, the sealing plate 40 is connected with the die-cutting frame 31 and the die-cutting seat 41 is connected with the sealing plate 40 through a group of guide rod and guide sleeve assemblies, so that the lifting is stable.

The height of the cutting plate 36 is higher than that of the drip pan 37, the cutting plate 36 is tightly attached to the drip pan 37, and electrolyte can be guaranteed to completely enter the drip pan 37 during cutting. A set of tooth-shaped clamping grooves 48 are respectively arranged on two sides of the cutting plate 36, and plug-in blocks 49 matched with the tooth-shaped clamping grooves 48 are respectively arranged on two ends of the adjustable positioning plate 38. The spacing between a set of tooth-like slots 48 is designed according to the cell size commonly used in the market, and each tooth-like slot 48 corresponds to a cell size, so that the position of the adjustable positioning plate 38 can be quickly adjusted when different types of cells are cut.

The die cutting seat 41 is provided with a pre-pressing plate 52, the bottom of the die cutting seat 41 is provided with a pre-pressing plate mounting groove, and the pre-pressing plate 52 is movably mounted in the groove through a group of guide rods; the bottom of the sealing plate 40 is provided with a circle of sealing strips matched with the edge opening of the battery cell positioning disc 35. The two guide rods are respectively positioned in the middle parts of the two ends of the pre-pressing plate 52, one end of the top of the guide rod is connected to the die cutting seat 41 through threads, a limiting boss is arranged at one end of the bottom of the guide rod, one end of the bottom of the guide rod does not exceed the bottom surface of the die cutting seat 41, and the pre-pressing plate 52 is provided with a step hole matched with the guide rod. Under the default condition, the pre-pressing plate 52 is hung below the die-cutting seat 41 due to dead weight, when the die-cutting seat 41 moves downwards, the pre-pressing plate 52 contacts the battery core firstly, the battery core is pressed by the dead weight, the position of the battery core is fixed, then when the die-cutting seat 41 continues to move downwards, the pre-pressing plate 52 is blocked and can retract into the die-cutting seat 41 until the punch 43 cuts the battery core, then the die-cutting seat 41 moves upwards in a resetting way, and the pre-pressing plate 52 always presses the battery core until the die-cutting seat 41 continues to move upwards to bring the pre-pressing plate 52 upwards and separate from the battery core.

The stationary plate of the rotary table 30 is provided with a liquid collecting tank 50 communicating with the liquid discharge port of the air pump 39. After the air pump 39 is started, the pumped electrolyte enters the liquid collecting tank 50 for collection, and the liquid outlet of the air pump 39 is connected with the liquid collecting tank 50 through a telescopic pipe or a hose, so that the air pump 39 cannot be influenced to rotate along with the rotary table 30.

The front side of the die-cutting frame 31 is provided with a storage table 22, so that the battery cells are conveniently stacked, and after cutting, the battery cells are sequentially and backwards placed on the storage table 22, so that workers can conveniently stack the battery cells on the die-pressing baking frame 130.

A set of molded barbecue grill 130 for fixing the battery cells is provided in the oven chamber 120, a steam heating pipe is provided in the oven chamber 120, and the battery cells on the molded barbecue grill 130 are baked by heat radiation.

The baking chamber 120 is positioned at one side of the die-cutting liquid extracting device 110, the die-pressing baking frame 130 is moved out of the baking chamber 120 for stacking the electric cores, the electric cores are pushed into the baking chamber 120 for parking after stacking, a steam heating pipeline in the baking chamber 120 is opened after all the die-pressing baking frames 130 are parked, the baking chamber 120 is closed, and the indoor temperature reaches 90 ℃ for three hours.

The working principle of the mould pressing baking frame 130 comprises a movable frame 60 and a plurality of compaction moulds 61 arranged on the movable frame 60, wherein a plurality of fixing plates 62 are respectively arranged on the movable frame 60 in an array manner in the longitudinal and transverse directions, the fixing plates 62 and the movable frame 60 are made of metal materials, and supporting frameworks corresponding to the fixing plates 62 are welded on the movable frame 60 to prevent the fixing plates 62 from deforming after bearing.

The compaction die 61 comprises a lower base 63, an upper base 64, a compaction plate 65 and an L-shaped cell placing plate 66, one end of the lower base 63 is hinged on the fixed plate 62 through a pin shaft, the lower base 63 and the upper base 64 are fixedly connected through a group of guide rods, the compaction plate 65 is movably mounted on a group of guide rods between the lower base 63 and the upper base 64, the upper base 64 is provided with a compaction screw 67, the horizontal end of the L-shaped cell placing plate 66 is provided with a handle hole, and the L-shaped cell placing plate 66 is placed on the lower base 63 and positioned below the compaction plate 65.

When the pressing die 61 is used, the electric cores are firstly stacked on the L-shaped electric core placing plates 66 in sequence, then the L-shaped electric core placing plates 66 are conveyed to the lower base 63, then the pressing die 61 is inclined backwards, when the electric cores follow the L-shaped electric core placing plates 66 to incline backwards together, the electric cores can be aligned forwards and backwards through the vertical plates of the L-shaped electric core placing plates 66, at the moment, the electric cores are all inclined, the pressure between the electric cores can be reduced, staff can normalize the electric cores from two sides, the two sides are aligned, the pressing plates 65 are put down after the alignment, the electric cores are fastened through the pressing screws 67, the electric cores are all fixed in the pressing die 61, at the moment, the pressing die 61 is placed flat, and the rest of the pressing die 61 sequentially repeats the actions to fix the electric cores. After baking, the pressing screw 67 is loosened, the pressing plate 65 is lifted upwards to draw out the L-shaped cell placing plate 66, and the cell can be taken out from the pressing die 61. The whole process does not need to carry the whole compaction die 61, so that time and labor are saved, and the battery cells are stacked neatly.

The bottom of the movable frame 60 is provided with a group of universal travelling wheels, and the front end and the rear end of the movable frame 60 are respectively provided with a pair of armrests 70; the two fixing plates 62 are arranged in the transverse direction of the movable frame 60, and an angle limiting cross rod 71 is arranged on the movable frame 60 between the two transverse fixing plates 62, and the angle limiting cross rod 71 is used for limiting the maximum tilting angle of the compaction die 61 and preventing rollover.

The fixed plate 62 corresponding to the lower base 63 is provided with a push rod 72, the fixed plate 62 is provided with a push rod mounting hole, one end of the push rod 72 is hinged in the hole through a pin shaft, the pin shaft is provided with a torsion spring for controlling the push rod 72 to reset, and the lower base 63 is provided with a push rod limiting groove matched with the push rod 72; that is, after the compaction die 61 is tilted, the compaction die is supported by the ejector rod 72, so that the compaction die is kept in a tilted state, and a worker can conveniently stack the battery cells. When the compaction die 61 is lifted upwards, the ejector rod 72 also follows the rotation to support upwards under the action of the torsion spring until one end of the ejector rod 72 enters the ejector rod limiting groove, so that the compaction die 61 can be supported and the tilting angle of the compaction die 61 can be fixed, and the tilting angle of the compaction die 61 is controlled to be 25-35 degrees. When the compacting die 61 needs to be leveled, only the compacting die 61 needs to be pushed upwards, one end of the lower part of the ejector rod 72 is pushed, the ejector rod 72 entering one end in the ejector rod limiting groove is moved out, then the compacting die 61 is put down, and one end of the ejector rod 72 is pressed into the ejector rod mounting hole of the fixing plate 62 by the compacting die 61 under the action of self weight.

The width of the lower base 63 is larger than that of the pressing plate 65, namely after the L-shaped battery cell placing plate 66 is inserted, the pressing plate 65 cannot interfere with the vertical part of the L-shaped battery cell placing plate 66 when being pressed downwards, and a limiting protrusion matched with the L-shaped battery cell placing plate 66 is arranged on the lower base 63 positioned at the hinged end; the limiting protrusion is used for limiting the position of the L-shaped battery cell placing plate 66 after being inserted, and optimally, the inner side of the vertical part of the L-shaped battery cell placing plate 66 after being inserted is attached to the side edge of the pressing plate 65, and the pressing plate 65 can completely press the battery cells. A notch is arranged at one side of one end of the upper part of the guide rod for connecting the lower base 63 and the upper base 64, and one side of the guide rod avoiding hole on the pressing plate 65 is of a square structure matched with the notch.

When the compaction die 61 is in an inclined state, when the compaction plate 65 moves upwards to the incision position of the guide rod, the compaction plate 65 can be fixed at the incision position due to the fact that the gravity center of the compaction plate 65 is matched with the incision through the square structure of the guide rod avoidance hole, the L-shaped battery cell placing plate 66 is convenient to put in and take away, meanwhile, the compaction plate 65 can be pulled forward through external force to enable the compaction plate 65 to be separated from the incision position, and the compaction plate can move up and down on the guide rod smoothly to compact the battery cells.

As shown in fig. 8, the upper hold-down plate 65 is fixed to the slit, and the lower hold-down plate 65 is movable up and down on the guide bar by being separated from the slit.

Claims

1. A cutting and forming system for a soft package battery core of a lithium battery is characterized by comprising a die cutting and liquid pumping device (110) and a baking chamber (120),

the die-cutting liquid extracting device (110) comprises a rotary table (30), a die-cutting frame (31) and a cutting die, a pair of cell positioning disks (35) are symmetrically arranged on a movable disk of the rotary table (30), a cutting plate (36) and a liquid collecting disk (37) are respectively arranged on the cell positioning disks (35), an adjustable positioning plate (38) is arranged on the cutting plate (36), a pair of air extracting pumps (39) opposite to the liquid collecting disk (37) are arranged at the bottom of the movable disk of the rotary table (30), liquid draining holes communicated with the air extracting pumps (39) are arranged on the liquid collecting disk (37), the cutting die is arranged on the die-cutting frame (31) and is positioned above the rotary table (30),

the front side of the die-cutting frame (31) is provided with a storage table (22);

the baking chamber (120) is internally provided with a group of molding baking frames (130) for fixing the battery cells, the molding baking frames (130) comprise a movable frame (60) and a plurality of pressing molds (61) arranged on the movable frame (60), a plurality of fixing plates (62) are respectively arrayed in the longitudinal and transverse directions on the movable frame (60), the pressing molds (61) comprise a lower base (63), an upper base (64), pressing plates (65) and L-shaped battery cell placing plates (66), one end of the lower base (63) is hinged on the fixing plates (62) through a pin shaft, the lower base (63) is fixedly connected with the upper base (64) through a group of guide rods, the pressing plates (65) are movably arranged on a group of guide rods between the lower base (63) and the upper base (64), the upper base (64) is provided with pressing screws (67), the horizontal end of the L-shaped battery cell placing plates (66) are provided with hand lifting holes, and the L-shaped battery cell placing plates (66) are placed on the lower base (63) and are located below the pressing plates (65).

2. The lithium battery soft package battery core cutting and forming system according to claim 1, characterized in that the cutting die comprises a sealing plate (40) matched with a battery core positioning disc (35) and a die cutting seat (41) matched with a cutting plate (36), the sealing plate (40) is movably arranged on a die cutting frame (31) through a pair of lifting cylinders (42), a die cutting seat avoiding hole is formed in the sealing plate (40), a punch (43) is arranged at the bottom of the die cutting seat (41), and the die cutting seat (41) is movably arranged on the sealing plate (40) through a pair of die cutting cylinders (45); the height of the cutting plate (36) is higher than that of the liquid collecting disc (37), a group of tooth-shaped clamping grooves (48) are respectively arranged on two sides of the cutting plate (36), and inserting blocks (49) matched with the tooth-shaped clamping grooves (48) are respectively arranged at two ends of the adjustable positioning plate (38).

3. The lithium battery soft package battery core cutting and forming system according to claim 2, characterized in that a pre-pressing plate (52) is arranged on the die cutting seat (41), a pre-pressing plate mounting groove is arranged at the bottom of the die cutting seat (41), and the pre-pressing plate (52) is movably mounted in the groove through a group of guide rods; the bottom of the sealing plate (40) is provided with a circle of sealing strips matched with the edge opening of the battery cell positioning disc (35).

4. The lithium battery soft package cell cutting and forming system according to claim 1, wherein a liquid collecting groove (50) communicated with a liquid outlet of the air pump (39) is arranged on a fixed disc of the rotary table (30).

5. The lithium battery soft package battery core cutting and forming system according to claim 1, wherein the bottom of the movable frame (60) is provided with a group of universal travelling wheels, and the front end and the rear end of the movable frame (60) are respectively provided with a pair of armrests (70); the number of the fixing plates (62) in the transverse direction of the movable frame (60) is two, and an angle limiting cross rod (71) is arranged on the movable frame (60) between the two transverse fixing plates (62).

6. The lithium battery soft package battery core cutting and forming system according to claim 1, wherein a push rod (72) is arranged on a fixed plate (62) corresponding to the lower base (63), a push rod mounting hole is arranged on the fixed plate (62), one end of the push rod (72) is hinged in the hole through a pin shaft, a torsion spring for controlling the push rod (72) to reset is arranged on the pin shaft, and a push rod limiting groove matched with the push rod (72) is arranged on the lower base (63).

7. The lithium battery soft package battery core cutting and forming system according to claim 1, wherein the width of the lower base (63) is larger than that of the pressing plate (65), and the lower base (63) at the hinged end is provided with a limiting protrusion matched with the L-shaped battery core placing plate (66); a side edge of one end of the upper part of the guide rod for connecting the lower base (63) and the upper base (64) is provided with a notch, and one side of the guide rod avoiding hole on the pressing plate (65) is of a square structure matched with the notch.