CN105762379B - Battery lamination machine - Google Patents

Abstract

The invention discloses a battery stacking machine. The battery stacking machine includes: a supply device for supplying a positive electrode separator assembly belt, the positive electrode separator assembly belt includes a positive electrode separator assembly and a separator with insulating properties extended from the positive electrode separator assembly Belt; the first negative mold and the second negative mold are respectively arranged on opposite sides of one end of the supply device, and are respectively used for punching and making negative electrode sheets and attaching them to the positive electrode separator assembly supplied by the supply device. The two sides of the two sides; the winding module is arranged between the first negative mold and the second negative mold, and is used for one-way or two-way cross-rotation after the negative plate and the positive separator assembly are compressed and laminated 360° makes the separator tape wrap the surface of the negative electrode sheet to wait for the next lamination until the set number of lamination layers is reached and then the cell is made. Through the above embodiments, the structure is simple, and the production efficiency and yield rate are high.

Description

Battery stacker

technical field

The invention relates to the technical field of battery manufacturing, in particular to a battery stacking machine.

Background technique

At present, the laminating method adopted by the latest lamination machine in China is that the lamination table drives the diaphragm to move left and right, and then moves to the positive lamination after stacking a negative electrode. After stacking in this way to the set number of layers, the diaphragm is cut off and the glue is applied at the end. .

The lamination speed of this method can only be between 1.5-2.0s/pcs according to the size of the pole piece, and it is difficult to have a greater breakthrough in efficiency.

Contents of the invention

To solve the above technical problems, the present invention provides a battery lamination machine, which has a simple structure, high production efficiency and high yield.

In order to solve the above technical problems, the present invention provides a battery stacking machine, including: a supply device for supplying a positive electrode separator assembly belt, the positive electrode separator assembly belt includes a positive electrode separator assembly and is formed by extending the positive electrode separator assembly. A diaphragm belt with insulating properties; the first negative mold and the second negative mold are respectively arranged on opposite sides of one end of the supply device, and are respectively used for punching and making negative electrode sheets and attaching them to the supply device. The opposite sides of the positive electrode separator assembly; the winding module is arranged between the first negative electrode mold and the second negative electrode mold, and is used to compress the negative electrode sheet and the positive electrode separator assembly after lamination One-way or two-way cross rotation of 360° makes the separator belt wrap the surface of the negative electrode sheet to wait for the next lamination until the set number of lamination layers is reached to form a battery cell.

Further, a discharge clamp is provided at the end of the winding module, and a cutter is provided at the end of the discharge clamp, and the discharge clamp is used to pull down the cell by a distance of a cell width, and the cutter The knife is used to cut off the pulled-down electric core.

Further, the number of the positive electrode separator assemblies in the positive electrode separator assembly belt is more than two, and the adjacent positive electrode separator assemblies are connected by the separator belt, wherein the lengths of the adjacent separator belts are equal Or incrementally, the winding module selects an appropriate rotation mode to rotate according to the length relationship between the adjacent diaphragm belts.

Further, when the lengths of the adjacent diaphragm belts are equal, the winding module selects a two-way cross rotation of 360° for rotating lamination; when the length of the adjacent diaphragm belts increases, the winding module selects a single Rotate laminations in a 360° manner.

Further, the supply device includes a transmission mechanism; the transmission mechanism is sequentially arranged with a positive electrode coil material, a lower diaphragm coil material, a positive electrode mold, an upper diaphragm coil material, and a hot pressing module from the proximal end to the far end, and the positive electrode mold The positive electrode tape supplied by the positive coil material is punched into a positive electrode sheet and placed on the lower diaphragm supplied by the lower diaphragm coil material, and the lower diaphragm and the positive electrode sheet are driven from the proximal end by the transmission mechanism. Moving to the far end, the upper diaphragm supplied by the upper diaphragm coil is placed above the positive electrode sheet and moves synchronously, and the upper diaphragm, the positive electrode sheet and the lower diaphragm are moving to the center of the hot pressing module , the hot-pressing module hot-presses the upper diaphragm, the positive electrode sheet, and the lower diaphragm to form the positive-electrode-separator assembly, wherein the positive-electrode-separator assembly is connected The upper diaphragm and the lower diaphragm form the diaphragm belt; the first negative mold and the second negative mold are arranged on opposite sides of the distal end of the transmission mechanism.

Further, the supply device also includes three translation mechanisms; one translation mechanism is arranged at the positive electrode mold, and is used to move the positive electrode sheet made by the positive electrode mold to the lower diaphragm; in addition The two translation mechanisms are respectively arranged at the first negative electrode mold and the second negative electrode mold, and are respectively used for affixing the negative electrode sheets made by the first negative electrode mold and the second negative electrode mold. combined to the opposite sides of the positive electrode separator assembly.

Further, the transmission mechanism is composed of a driving roller and a transition roller, the lower diaphragm passes through the driving roller and the transition roller and moves from the proximal end to the distal end of the transmission mechanism as a transmission belt, and the driving The rollers are paired with at least a first group of driving rollers and a second group of driving rollers.

Further, the first group of driving rollers and/or the second group of driving rollers are provided with a deviation correction sensor, and correspondingly, when the deviation correction sensor senses that the positive electrode separator assembly has a deviation The movement corrects the deviation of the positive electrode separator assembly.

Further, the first group of driving rollers and the second group of driving rollers are arranged at a certain distance to form a buffer zone for buffering the positive electrode separator assembly, the buffer zone is arranged in a U-shaped structure, and the buffer zone A position sensor is provided in the center to continue making the next positive electrode separator assembly when it is detected that the distance between the positive electrode separator assembly directly below the position sensor and the distance is less than a set value, otherwise, the production is suspended.

Further, the winding module includes two needle rolling groups provided with at least a pair of openable and closable rolling needles, the rolling needle groups are arranged opposite to each other, and each of the rolling needle groups passes through a fixing plate and a driving motor respectively. Rotationally connected, each driving motor synchronously rotates to drive the corresponding needle roll group to rotate synchronously.

The battery laminate machine according to the embodiment of the utility model is provided with a supply device for supplying a positive electrode diaphragm assembly with a diaphragm belt, a first negative electrode mold for punching and making a negative electrode sheet, a second negative electrode mold, and pressing the negative electrode sheet to the positive electrode separator. Assembled and stacked coiled material winding module, wherein the coiled material film group rotates 360° in one direction or two directions to wrap the surface of the negative electrode sheet with the separator tape to provide working conditions for the next negative electrode stack. Lamination machine, which can stack sheets continuously, has high production efficiency and good product rate, and its efficiency can reach 0.25s/pcs, and its production capacity can be increased by 6 to 8 times compared with existing lamination machines.

Description of drawings

Fig. 1 is a schematic structural view of a battery lamination machine according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of the positive electrode separator assembly belt in the battery stacker according to the embodiment of the present invention.

Fig. 3 is a schematic structural view of the positive electrode separator assembly in the positive electrode separator assembly belt shown in Fig. 2 .

Fig. 4 is a structural schematic diagram of a translation mechanism in a battery stacker according to an embodiment of the present invention.

Fig. 5 is a schematic structural view of a winding module in a battery stacker according to an embodiment of the present invention.

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

Referring to FIG. 1 to FIG. 3 , the battery stacking machine according to the embodiment of the present invention at least includes: a supply device, a negative electrode mold, and a winding module 6 .

The supply device is used to supply the positive electrode separator assembly belt 100, wherein the positive electrode separator assembly belt 100 includes a positive electrode separator assembly 101 and a separator belt 102 with insulating properties formed by extending the positive electrode separator assembly 101;

The negative electrode mold includes a first negative electrode mold 1 and a second negative electrode mold 1', which are respectively arranged on opposite sides of one end of the supply device, and are respectively used for punching and making the negative electrode sheet 3 and attaching it to the positive electrode separator assembly supplied by the supply device 101 opposite sides. Specifically, the first negative electrode mold 1 and the second negative electrode mold 1' are synchronously punched to produce the negative electrode sheet 3.

Winding module 6, which is located at the same end of the supply device where the negative electrode mold is set, and is arranged between the first negative electrode mold 1 and the second negative electrode mold 1', is used to compress and stack the negative electrode sheet 3 and the positive electrode separator assembly 101 After the sheet is rotated 360° in one direction or two directions, the separator belt 102 wraps the surface of the negative electrode sheet 3 for the next lamination until the set number of lamination layers is reached, and then the cell is made. Among them, the positive electrode separator assembly 101 that has been laminated but has not reached the set number of layers is called a semi-finished battery cell for convenience, and the positive electrode separator assembly 101 that has been laminated to a set number of layers is called a battery cell for convenience. That is, the finished battery cell.

In a specific embodiment, the first negative electrode mold 1 and the second negative electrode mold 1' can be respectively provided with negative electrode bags to provide negative electrode strips for punching.

In a specific embodiment, a discharge clamp 4 is provided at the end of the winding module 6 , and a cutter 5 is further provided at the end of the discharge clamp 4 . The unloading clamp 4 is used to pull down the cell by a distance of the width of the cell, and the cutter 5 is used to cut off the pulled cell. At this point, one cell is completed, and the next cell is continued to be manufactured.

In a specific embodiment, the timing of attaching the negative electrode sheet 3 to both sides of the positive electrode separator assembly 101 can be determined by sensor detection, or determined according to a preset program or time, which will not be described in detail here.

In this embodiment, the number of positive electrode separator assemblies 101 is more than two, and each positive electrode separator assembly 101 is formed into a continuous strip structure, and each positive electrode separator assembly 101 is spaced at a certain distance according to a certain rule, that is, adjacent positive electrodes The diaphragm assemblies 101 are all connected by diaphragm belts 102 . Wherein, the spacing distance between adjacent positive electrode separator assemblies 101 is equal or increasing. The rotation method is rotated. Preferably, when the lengths of adjacent diaphragm belts 102 are equal, the winding module 6 selects a two-way cross rotation of 360° (such as first clockwise/counterclockwise rotation of 360°, then counterclockwise/clockwise rotation of 360°, and so on) Carry out rotating lamination; when the length of adjacent diaphragm belts 102 is increasing, the winding module 6 selects a mode of rotating 360° in one direction (such as continuously clockwise or counterclockwise 360°) to perform rotating lamination. In this way, the lamination speed is fast and the efficiency is high, and the material of the diaphragm belt 102 will not be wasted.

In a specific embodiment, the supply device includes a transmission mechanism; the transmission mechanism is sequentially arranged with a positive electrode coil 24, a lower diaphragm coil 22, a positive electrode mold 17, an upper diaphragm coil 16, and a hot pressing module 14 from the proximal end to the distal end. . Specifically, the positive electrode mold 17 punches the positive electrode strip 240 supplied by the positive electrode coil 24 into a positive electrode sheet 25 and places it on the lower diaphragm 220 supplied by the lower diaphragm coil 22, and the lower diaphragm 220 and the positive electrode sheet 25 are driven by the transmission mechanism. The bottom moves from the proximal end to the distal end, and the upper diaphragm 160 supplied by the upper diaphragm roll material 16 is placed on the top of the positive electrode sheet 25 and moves synchronously. , the hot-pressing module 14 compresses the upper diaphragm 160, the positive electrode sheet 25, and the lower diaphragm 220 into one body to form the positive electrode separator assembly 101, wherein the upper diaphragm 160 connected between the adjacent positive electrode separator assemblies 101 and the lower diaphragm 220 form the aforementioned diaphragm strip 102, which is mainly used for electrical insulation. The first negative electrode mold 1 and the second negative electrode mold 1' are arranged on opposite sides of the far end of the transport mechanism, that is, the positive electrode separator assembly 101 will be transported to the first negative electrode mold 1 and the second negative electrode mold 1'.

A sensor can be installed at the center of the hot pressing module 14 to detect whether the positive electrode sheet 25 has reached its center, and when the sensor detects that the positive electrode sheet 25 has reached its center, the positive electrode separator assembly 101 is made by hot pressing. In this way, by setting the sensor to precisely position the positive electrode sheet 25 , the manufacturing of the positive electrode separator assembly 101 can be accurate, reliable and efficient. Of course, it is also possible to calculate the hot pressing start and time of the hot pressing mold according to the transmission speed of the transmission mechanism, the position and time at which the positive electrode sheet 25 is placed on the lower diaphragm 220, and the distance from the initial position of the positive electrode sheet 25 to the center of the hot pressing module 14. The positive electrode separator assembly 101 was fabricated at intervals.

As shown in FIG. 3 , the supply device also includes three translation mechanisms 27 responsible for moving the positive electrode sheet 25 and the negative electrode sheet 3 . Specifically, one of the translation mechanisms 27 is arranged at the positive electrode mold 17, and the positive electrode mold 17 is usually arranged at the side of the transmission belt to prevent the transmission belt from being accidentally cut off while making the positive electrode sheet 25 and affecting the transmission function. The translation mechanism 27 It is used to move the positive electrode sheet 25 made by the positive electrode mold 17 onto the lower diaphragm 220 . The other two translation mechanisms 27 are respectively arranged at the first negative electrode mold 1 and the second negative electrode mold 1', and are respectively used to bond the negative electrode sheet 3 made by the first negative electrode mold 1 and the second negative electrode mold 1' to the positive electrode. The opposite sides of the diaphragm assembly 101 . Preferably, a waste box 20 is provided under the positive electrode mold 17 to recover the remaining positive electrode waste 19 that is punched when the positive electrode mold 17 is used to make the positive electrode sheet 25 .

For example, the translation mechanism 27 may include a suction cup 271 and a manipulator 272 connected to the suction cup 271 , and the manipulator 272 drives the suction cup 271 to move back and forth. The manipulator 272 can be a cylinder or other retractable components (such as a motor combined with a ball screw, etc.). Among them, the suction cup 271 is a vacuum suction cup 271, which absorbs the positive electrode sheet 25 or the negative electrode sheet 3 by vacuuming, and releases the positive electrode sheet 25 or the negative electrode sheet 3 when it is inflated. slice 3. Of course, the translation mechanism 27 can also be other more complicated and costly clamping structures and the like. Preferably, the placement form of the positive electrode sheet 25 on the lower separator 220 can be shown in FIG. 3 , that is, the width direction of the positive electrode sheet 25 is consistent with the length direction of the lower separator 220 . Such a structural arrangement is convenient for winding the stack.

In a specific embodiment, continue to refer to Fig. 1, the transmission mechanism is made up of driving rollers 7, 13 and transition rollers 10, 15, 18, 21, 23, driving rollers 7, 13 are driven by motors, and the lower diaphragm 220 passes through each driving roller. The rollers 7, 13 and the respective transition rollers 10, 15, 18, 21, 23 also move as a conveyor belt from proximal to distal. Preferably, two driving rollers 7 constitute the first group of driving rollers, and two driving rollers 13 constitute the second group of driving rollers. Wherein, the first group of driving rollers is provided with a deviation correction sensor 8 and/or the second group of driving rollers is provided with a deviation correction sensor 12, and the corresponding driving roller 7 (13) senses that the positive electrode separator assembly 101 has During the offset, the overall movement inside and outside corrects the positive electrode separator assembly 101 (via motor correction), and then ensures that the positive electrode separator assembly 101 can reach the lamination position with an accurate posture after being transported, that is, it can accurately reach the first negative electrode mold 1 and the second negative electrode mold 1. The lamination is completed at the two negative electrode molds 1 ′ and the lamination is completed at the winding module 6 .

In a specific embodiment, the first group of driving rollers is spaced from the second group of driving rollers to form a buffer zone (not shown) for buffering the positive electrode separator assembly 101 . The buffer zone can be set in a U-shaped structure, and a position sensor 26 is arranged in the center of the buffer zone to continue making the next positive electrode when it is detected that the distance between the positive electrode diaphragm assembly 101 located directly below the position sensor 26 and the distance between it is less than the set value. The separator assembly 101, otherwise, the production of the positive electrode separator assembly 101 is suspended. In this way, it can be ensured that the next positive electrode diaphragm assembly 101 can be stored in time for making electric cells after the production of one battery cell is completed, without wasting the production line and time; at the same time, the production line will not be crowded due to the production of too many positive electrode separator assemblies 101 .

In the above embodiment, as shown in FIG. 4 , the winding module 6 includes two needle winding groups 61 provided with at least a pair of openable and closable winding needles 611 , and the winding needle groups 61 are arranged opposite to each other so as to pass through the winding needles 611 thereon. Jointly clamp and compress the electric core, and further, each needle winding group 61 is respectively connected to a drive motor 62 through a fixed plate (not shown), and each driving motor 62 rotates synchronously to drive the corresponding needle winding group 61 to rotate synchronously, The driving motor 62 can drive the winding needle set 61 to rotate clockwise and counterclockwise at any angle. For example, the needle rollers 641 of the needle roller group 61 can be opened and closed by the air cylinder 642 . In order to stably clamp and better compress the battery cells, there can be more than two pairs of rolling needles arranged on each rolling needle group.

Among them, the working principle of the first negative electrode mold 1, the second negative electrode mold 1', the winding module 6, the unloading clamp 4 and the cutting to cooperate to complete the cell production is briefly described as follows:

(1) Negative electrode punching: the first negative electrode mold 1 punches the negative electrode strip to form a punched negative electrode sheet 3, and the sucker 271 of the translation mechanism 27 absorbs the negative electrode sheet 3 through vacuum and then sends it to the stacking position;

(2) Roll material lamination: the needle set 61 clamps the positive electrode separator assembly 101 at the same time. 3 When it is sent to the stacking position and the two sides of the positive electrode separator assembly 101 are pressed tightly, the rolling needle group 61 is opened and then retracted and then advanced to compress the two negative electrode sheets 3 just placed and the positive electrode separator assembly 101 together, and the cell ( semi-finished product) and then rotate 360° clockwise with the axis of the winding needle group 61, while the first negative electrode mold 1 and the second negative electrode mold 1' continue punching to make the negative electrode sheet 3, and then the first negative electrode mold 1 and the second negative electrode mold 1' The suction cups 271 of the translation mechanism 27 on both sides send the two negative electrode sheets 3 to the stacking position at the same time and press them tightly. The hour hand rotates 360° (two-way cross), and so on;

(3) Blanking and cutting: When the number of laminated layers reaches the set number of layers, that is, after the battery (finished product) is produced, the unloading clamp 4 rises to clamp the laminated battery, and the rolling needle group 61 opens After that, the unloading clamp 4 pulls down the battery core by a distance of the width of the battery core, the coil needle group 61 opens and then advances to clamp the positive electrode separator assembly 101, and the cutter 5 cuts off the separator belt 102 at the joint of the assembly, and the completion Then repeat the above action for the coiling of the next cell.

The battery laminating machine of the embodiment of the present utility model is provided with a supply device for supplying a positive electrode separator assembly 101 with a separator belt 102, a first negative electrode mold 1 for punching and making the negative electrode sheet 3, a second negative electrode mold 1', and the negative electrode The sheet 3 is pressed onto the positive electrode separator assembly 101 and the winding module 6 is used for lamination of the coiled material, wherein the coiled film group is unidirectionally or bidirectionally rotated 360° to wrap the separator belt 102 on the surface of the negative electrode sheet 3 as follows One-time negative electrode stacking provides working conditions. Using such a stacking machine, it can stack stacks continuously, with high production efficiency and yield rate, and its efficiency can reach 0.25s/pcs. Compared with the existing stacking machine, the production capacity can be increased by 6~ 8 times.

The present invention also provides a battery stacking method, which mainly includes the following steps:

Step 1, positive electrode punching. Specifically, after the positive electrode mold 17 punches the positive electrode strip 240 supplied by the positive electrode roll material 24 , the translation mechanism 27 places the punched positive electrode sheet 25 on the lower separator 220 .

Step 2, making the positive electrode separator assembly 101 . Specifically, the rotation of the driving roller 13 drives the upper diaphragm 160, the lower diaphragm 220, and the punched positive electrode piece 25 to move synchronously to the left. The upper diaphragm 160, the lower diaphragm 220 and the positive electrode sheet 25 are pressed and bonded together to form the positive electrode separator assembly 101, and the interval between each positive electrode can be in an increasing relationship with the thickness of the stacked cells (corresponding to the winding module 6 unidirectional 360°coil use) can also be at equal intervals (first rotate the coil 360°clockwise, then counterclockwise 360°coil).

Step 3, caching the positive electrode separator assembly 101 . Specifically, the driving roller 13 rotates counterclockwise to drive the positive electrode diaphragm assembly 101 to move downward. When the deviation correction sensor 12 senses that the positive electrode diaphragm assembly 101 has a deviation, the driving roller 13 moves inside and outside as a whole to correct it. When the position sensor 26 senses When the distance between the lower positive electrode separator assembly 101 and it is less than the set value, the production of the positive electrode separator assembly 101 is continued, otherwise, the production is suspended.

Step 4, deflection correction before winding. Specifically, the driving roller 7 rotates counterclockwise to drive the material belt to continue to move, and the deviation correction sensor 8 senses that the positive electrode diaphragm assembly 101 has a deviation, and the driving roller 7 moves inside and outside as a whole to correct it.

Step five, negative electrode punching. Specifically, the first negative electrode mold 1 punches the negative electrode strip to form the punched negative electrode sheet 3, and the suction cup 271 of the translation mechanism 27 absorbs the negative electrode sheet 3 through vacuum and then sends it to the stacking position.

Step 6, roll material stacking. Specifically, the rolling pin group 61 clamps the positive electrode separator assembly 101 at the same time, when the suction cups 271 of the translation mechanism 27 on both sides of the first negative electrode mold 1 and the second negative electrode mold 1' send two negative electrode sheets 3 to the stack Position and press both sides of the positive electrode separator assembly 101, the rolling needle group 61 is opened and then retracted and then moved forward to compress the two negative electrode sheets 3 just placed and the positive electrode separator assembly 101 together, and the electric core (semi-finished product) is then rolled The axis of the needle group 61 rotates 360° clockwise, while the first negative mold 1 and the second negative mold 1' continue punching to make the negative sheet 3, and then the translation mechanism on both sides of the first negative mold 1 and the second negative mold 1' The suction cup 271 of 27 sends the two negative electrode sheets 3 to the lamination position simultaneously and compresses them, and the electric core (semi-finished product) rotates 360° clockwise (unidirectionally) or 360° counterclockwise ( two-way cross), and so on.

Step seven, cutting off the material. Specifically, when the number of laminated layers reaches the set number of layers, that is, after the battery core (finished product) is produced, the unloading clamp 4 rises to clamp the laminated battery core, and the rolling needle group 61 is opened and returned, and the unloading The material clip 4 pulls down the battery core by a distance of the width of the battery core, the needle set 61 is opened and then moves forward to clamp the positive electrode diaphragm assembly 101, and the cutter 5 cuts off the diaphragm belt 102 at the junction of the assembly, and repeats the above after completion The action proceeds to the coiling of the next cell.

The above is only the embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process conversion made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related technical fields, All are included in the scope of patent protection of the present invention in the same way.

Claims (9)

1. a kind of battery lamination machine, which is characterized in that including：

Feedway, for supplying positive diaphragm assemblage zone, the anode diaphragm assemblage zone include positive diaphragm assembly and by The mode separation strapping with insulation performance that the anode diaphragm assembly extends to form；

First cathode mold and the second cathode mold, are respectively arranged at the opposite sides of the feedway one end, use respectively In punching production negative electrode tab and conform to the opposite two sides of the positive diaphragm assembly supplied by the feedway；

Wind mould group, be set between the first cathode mold and the second cathode mold, for by negative electrode tab with it is described One-way or bi-directional intersection, which is rotated by 360 °, after positive diaphragm assembly compression lamination makes the mode separation strapping wrap up the negative electrode tab Surface to be made battery core until reaching and setting the lamination number of plies to next lamination in turn；

The winding mould group includes two volume needle groups being oppositely arranged, each volume needle group can forward-reverse, each volume needle Group is at least provided with a pair of openable and closable volume needle, and each volume needle group passes through a fixed plate respectively and driving motor rotation connects It connects, each driving motor synchronous rotary drives the corresponding volume needle group synchronous rotary.

2. battery lamination machine according to claim 1, it is characterised in that：

The winding mould group end is provided with material unloading clamp, and the material unloading clamp end is provided with cutter, and the material unloading clamp is used for institute The distance that battery core pulls down a battery core width is stated, the cutter is used to cut off the battery core of drop-down.

3. battery lamination machine according to claim 1, it is characterised in that：

The quantity of the positive diaphragm assembly in the anode diaphragm assemblage zone is two or more, the adjacent positive diaphragm Assembly passes through the diaphragm band connection, wherein the equal length of the adjacent mode separation strapping is incremented by, the winding mould group According to the relationship selection of length between the adjacent mode separation strapping, suitable rotation mode is rotated.

4. battery lamination machine according to claim 3, it is characterised in that：

When the adjacent mode separation strapping equal length, it is folded that the bidirectional crossed mode being rotated by 360 ° of the winding mould group selection carries out rotation Piece；When the adjacent mode separation strapping increasing lengths, the mode of 360 ° of the mould group selection single direction rotation of winding carries out rotation lamination.

5. battery lamination machine according to claim 1, it is characterised in that：

The feedway includes transmission mechanism；

The transmission mechanism is proximally to being distally successively laid with positive coiled strip, lower diaphragm plate coiled strip, positive mold, upper diaphragm coiled strip And hot-die group, the anode mold by the positive band of the positive coiled strip supply be punched into positive plate be placed in it is described under every On the lower diaphragm plate of film roll material supply, the lower diaphragm plate and the positive plate are under the drive of the transmission mechanism proximally to distal end Mobile, the upper diaphragm of the upper diaphragm coiled strip supply is placed in above the positive plate and synchronizing moving, the upper diaphragm, described When being moved to the hot-die group center, the hot-die group is by the upper diaphragm, described for positive plate and the lower diaphragm plate Positive plate and the lower diaphragm plate, which are hot pressed into, is made into integration the positive diaphragm assembly, wherein is connected to the adjacent anode The upper diaphragm and the lower diaphragm plate between diaphragm assembly form the mode separation strapping；

The first cathode mold and the second cathode mold are set to the opposite sides of the transmission mechanism distal end.

6. battery lamination machine according to claim 5, it is characterised in that：

The feedway further includes three translation mechanisms；

One translation mechanism is set at the positive mold, for moving the good positive plate of the positive Mold Making It moves to the lower diaphragm plate；

Other two described translation mechanism is respectively arranged at the first cathode mold and the second cathode mold, is used respectively In by the good negative electrode tab of the first cathode mold and the second cathode Mold Making and conforming to the positive diaphragm The opposite two sides of assembly.

7. battery lamination machine according to claim 5, it is characterised in that：

The transmission mechanism is made of driven roller and transition roller, and the lower diaphragm plate passes through the driven roller and the transition roller and makees Mobile from the proximate of the transmission mechanism for transmission belt, the driven roller is in pairs at least provided with first group of driven roller With second group of driven roller.

8. battery lamination machine according to claim 7, it is characterised in that：

Deflection correction sensor is equipped at first group of driven roller and/or second group of driven roller, the corresponding driven roller is in institute It states deflection correction sensor and senses and moved inside and outside entirety when the positive diaphragm assembly is offset to the positive diaphragm assembly It rectifies a deviation.

9. battery lamination machine according to claim 7, it is characterised in that：

First group of driven roller and second group of driven roller setting spaced apart are formed with for caching the anode The buffer area of diaphragm assembly, the U-shaped structure setting in buffer area, the buffer area be provided centrally with position sensor with Detect the positive diaphragm assembly being located at immediately below the position sensor and its distance between less than setting value when, Continue to make next positive diaphragm assembly, otherwise pause makes.