CN209912978U

CN209912978U - Lithium battery compound machine

Info

Publication number: CN209912978U
Application number: CN201920990821.2U
Authority: CN
Inventors: 温在东
Original assignee: DONGGUAN GREAT AUTOMATION EQUIPMENT TECHNOLOGY Co Ltd
Current assignee: DONGGUAN GREAT AUTOMATION EQUIPMENT TECHNOLOGY Co Ltd
Priority date: 2019-06-26
Filing date: 2019-06-26
Publication date: 2020-01-07
Anticipated expiration: 2029-06-26

Abstract

The utility model belongs to the technical field of lithium battery production equipment, in particular to a lithium battery compound machine, which comprises a frame, and a feeding device, a driving device, a heating device, a pressing device and a cutting device which are arranged on the frame, wherein the feeding device is used for inputting a pole piece and a diaphragm; the input end of the driving device is connected with the output end of the feeding device, and the driving device is used for superposing the pole piece and the diaphragm to enable the pole piece and the diaphragm to form a complex and conveying the complex; the heating device is used for heating the complex to a preset high temperature; the pressing device is used for extruding the combined body to enable the pole piece and the diaphragm to be bonded and formed at high temperature; the input end of the cutting device is connected with the output end of the driving device. The beneficial effects of the utility model reside in that: the utility model discloses a lithium battery compounding machine realizes that pole piece and diaphragm are automatic compound, reduces manual operation, improves production efficiency.

Description

Lithium battery compound machine

Technical Field

The utility model belongs to the technical field of lithium cell production facility, especially, relate to a lithium cell compounding machine.

Background

Lithium ion batteries are used as a new generation of chemical power supply, and have incomparable advantages with nickel-hydrogen, nickel-cadmium, lead-acid batteries and the like, so that the lithium ion batteries are widely applied to consumer electronics products at present and are also used as power batteries to be applied to various pure electric and hybrid electric vehicles. At present, the manufacturing modes of the lithium ion battery mainly comprise a winding type and a lamination type, and the performance and the actual production of the lithium ion battery are seen: the winding type has the advantage of easy manufacturing process, the laminated type has the advantage of good quality in all aspects of the battery, and people focus attention on the winding type laminated battery in order to combine the advantages of the two processes.

The laminated lithium battery production process comprises a composite process of thermal composite molding of a pole piece and a diaphragm, the composite process generally comprises heating and rolling, namely, the pole piece and the diaphragm are firstly laminated, a pre-composite body formed by laminating is heated, and then the pre-composite body in a high-temperature state is extruded by a roll shaft so as to enable the pole piece and the diaphragm to be bonded and molded.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lithium battery compounding machine aims at solving and needs to increase manual work in the lithium battery lamination composite production process among the prior art supplementary, leads to production efficiency low, has the technical problem of potential safety hazard moreover.

In order to achieve the above object, an embodiment of the present invention provides a lithium battery compound machine, which includes a base, and a feeding device, a driving device, a heating device, a pressing device and a cutting device which are arranged on the base, wherein the feeding device is used for inputting a pole piece and a diaphragm; the input end of the driving device is connected with the output end of the feeding device, and the driving device is used for superposing the pole piece and the diaphragm to enable the pole piece and the diaphragm to form a complex and conveying the complex; the heating device is arranged on a moving stroke of the compound body which is driven by the driving device to move and is used for heating the compound body to a preset high temperature; the pressing device is arranged on a moving stroke of the complex body which is driven by the driving device to move and is used for extruding the complex body which is heated to high temperature by the heating device so as to bond and form the pole piece and the diaphragm which are at high temperature; the input end of the cutting device is connected with the output end of the driving device, and the cutting device is used for cutting the formed composite body to a preset length.

Optionally, the driving device includes a fourth material roller, a fifth material roller, a sixth material roller, a seventh material roller, a first driving roller, a second driving roller, a third driving roller, a fourth driving roller, a first driving member, a second driving member, and a first driving motor, the fourth material roller and the fifth material roller are symmetrically arranged up and down, the sixth material roller and the seventh material roller are symmetrically arranged up and down, the first driving roller and the second driving roller are symmetrically arranged up and down, and the third driving roller and the fourth driving roller are symmetrically arranged up and down; the fourth material roller and the fifth material roller are both wound with mylar films, and the mylar films wound on the fourth material roller sequentially pass through the first driving roller, the third driving roller and the sixth material roller; the mylar film wound on the fifth material roller sequentially passes through the second driving roller, the fourth driving roller and the seventh material roller; the output ends of the first driving piece and the second driving piece are respectively in driving connection with the first driving roller and the third driving roller, and the first driving motor is in driving connection with the fourth driving roller through a transmission mechanism.

Optionally, the driving device includes a fourth material roller, a fifth material roller, a sixth material roller, a seventh material roller, a first synchronous wheel assembly, a second synchronous wheel assembly, a third synchronous wheel assembly, a fourth synchronous wheel assembly, a first driving member, a second driving member, and a first driving motor, the fourth material roller and the fifth material roller are symmetrically arranged up and down, the sixth material roller and the seventh material roller are symmetrically arranged up and down, the first synchronous wheel assembly and the second synchronous wheel assembly are symmetrically arranged up and down, the third synchronous wheel assembly and the fourth synchronous wheel assembly are symmetrically arranged up and down, the fourth material roller and the fifth material roller are both wound with a mylar film, and the mylar film wound on the fourth material roller sequentially passes through the first synchronous wheel assembly, the third synchronous wheel assembly, and the sixth material roller; the Mylar film wound on the fifth material roller sequentially passes through the second synchronous wheel assembly, the fourth synchronous wheel assembly and the seventh material roller; the output ends of the first driving piece and the second driving piece are respectively in driving connection with the first synchronous wheel component and the third synchronous wheel component, and the first driving motor is in driving connection with the fourth synchronous wheel component through a transmission mechanism so as to drive the fourth synchronous wheel component to rotate.

Optionally, the first synchronizing wheel and the third synchronizing wheel assembly are identical in structure, and the second synchronizing wheel assembly and the fourth synchronizing wheel assembly are identical in structure; the first synchronizing wheel assembly comprises a first synchronizing wheel, a second synchronizing wheel, a third synchronizing wheel, a first mounting frame and a first synchronizing belt, the first synchronizing wheel, the second synchronizing wheel and the third synchronizing wheel are all rotatably connected to the first mounting frame, the lower end faces of the second synchronizing wheel and the third synchronizing wheel are located at the same height, and the lower ends of the second synchronizing wheel and the third synchronizing wheel extend to the outer side of the first mounting frame; the first synchronizing wheel, the second synchronizing wheel and the third synchronizing wheel are rotationally connected through the first synchronizing belt; the second synchronizing wheel assembly comprises a fourth synchronizing wheel, a fifth synchronizing wheel, a sixth synchronizing wheel, a second mounting frame and a second synchronous belt, the fourth synchronizing wheel, the fifth synchronizing wheel and the sixth synchronizing wheel are all rotatably connected to the second mounting frame, the upper end faces of the fifth synchronizing wheel and the sixth synchronizing wheel are at the same height, and the upper ends of the fifth synchronizing wheel and the sixth synchronizing wheel extend to the outer side of the second mounting frame; the fourth synchronous wheel, the fifth synchronous wheel and the sixth synchronous wheel are rotationally connected through the second synchronous belt; the outer side walls of the second synchronous belt and the first synchronous belt are provided with glue layers for increasing friction force; the first driving motor is in driving connection with the fourth synchronizing wheel through a transmission mechanism so as to drive the fourth synchronizing wheel to rotate, and the output end of the first driving piece is in driving connection with the first mounting frame; the output end of the second driving piece is in driving connection with the second mounting rack.

Optionally, the feeding device includes a first material roller, a second material roller, a third material roller, and two chasing and cutting mechanisms, the number of the third material rollers is two, the two third material rollers, the first material roller and the second material roller are circumferentially arranged around the input end of the driving device at intervals, the first material roller is arranged between the two third material rollers, the third material roller is arranged between the first material roller and the second material roller, the number of the chasing and cutting mechanisms is two, the two chasing and cutting mechanisms are respectively arranged at the output ends of the first material roller and the second material roller, the first material roller and the second material roller are wound with pole pieces, and the polarities of the pole pieces wound on the first material roller and the pole pieces wound on the second material roller are always opposite; and the third material roller is wound with a diaphragm.

Optionally, the feeding device further includes a pair-roller driving mechanism for prepressing the pole pieces and the diaphragms conveyed by the second material roller and the third material roller, the pair-roller driving mechanism is disposed between the third material roller and the second material roller, the pair-roller driving mechanism includes a fourth driving part, a fifth driving roller and a sixth driving roller, the fifth driving roller and the sixth driving roller are symmetrically disposed up and down at the output end of the third material roller to form a gap for accommodating the composite body, and the output end of the fourth driving part is in driving connection with the fifth driving roller.

Optionally, heating device includes the support frame, generates heat the board, the heating tube and is used for the power supply to make the heating tube generates heat the power, the support frame is installed on the external support, the support frame is equipped with the opening cavity, the removal stroke of complex body is aimed at to the opening of opening cavity, the board that generates heat is installed in the opening cavity, the quantity of heating tube is the multiunit, the heating tube is followed the length direction interval distribution of the board that generates heat is in order to form the heating radiation district along the removal stroke setting of complex body.

Optionally, the bottom wall of the open cavity is hollowed with a plurality of limiting grooves arranged at intervals along the length direction of the open cavity, the number of the heating plates is multiple, each heating plate is installed in the corresponding limiting groove, each heating tube is installed on the corresponding heating plate, the heating device further comprises a plurality of independent switches, one end of each independent switch is electrically connected with the power supply, and the other end of each independent switch is electrically connected with the corresponding heating tube.

Optionally, the pressing device includes a first pressing roller, a second pressing roller, a third driving element, a second driving motor and a third driving motor, the first pressing roller and the second pressing roller are disposed in a vertically symmetrical manner with a moving stroke of the composite as a center, an output end of the third driving element is connected to the first pressing roller in a driving manner so as to drive the first pressing roller to move in a direction toward the second pressing roller, so that the first pressing roller and the second pressing roller cooperate to extrude the composite heated by the heating device, an output end of the second driving motor is connected to the first pressing roller in a driving manner so as to drive the first pressing roller to rotate through a transmission mechanism, the third driving motor is connected to the second pressing roller in a driving manner so as to drive the second pressing roller to rotate through a transmission mechanism, and rotation directions of the first pressing roller and the second pressing roller are always opposite.

Optionally, the pressing device further comprises a plurality of heating pipes, the number of the heating pipes is multiple, the first pressing roller and the second pressing roller are both provided with cavities for accommodating the heating pipes, the plurality of heating pipes are mounted on the inner wall of the cavities and distributed annularly, each heating pipe is arranged along the length direction of the cavity, and each heating pipe is electrically connected with an external power supply device.

The embodiment of the utility model provides an above-mentioned one or more technical scheme of lithium cell thermal compound machine has one of following technological effect at least: feeding unit input pole piece and diaphragm to drive arrangement department, drive arrangement forms the complex body with the crisscross coincide of pole piece and the diaphragm that corresponds and drives this complex body and carry so that the complex body passes through heating device and compression fittings in proper order toward cutting device's direction, heating device heats the complex body to high temperature, compression fittings extrusion is in the pole piece and the diaphragm of high temperature state so that pole piece and diaphragm bonding shaping, cutting device intercepting again through the fashioned complex body of drive arrangement output to predetermineeing length, compare in the partial process of the lithium cell composite process among the prior art and need pass through the supplementary completion of manual work, there is the technical problem that production efficiency is low, the utility model provides a lithium cell thermal compound machine can realize automatic lamination battery thermal compound shaping, reduces the manual work time, improves production efficiency effectively.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic structural diagram of a lithium battery compound machine provided by an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a lithium battery compound machine with a pair-roller driving mechanism provided by an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a driving device according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a heating device according to an embodiment of the present invention.

Fig. 5 is a flowchart of a method for manufacturing a laminated battery according to an embodiment of the present invention.

Fig. 6 is a flowchart of a method for manufacturing a laminated battery according to an embodiment of the present invention.

Fig. 7 is a flowchart of a method for manufacturing a laminated battery according to a third embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

10-feeding device 20-driving device 30-heating device

40-laminating device 50-cutting device 21-fourth material roller

22-fifth material roller 23-sixth material roller 24-seventh material roller

25-first drive roller 26-second drive roller 27-third drive roller

28-fourth drive roll 11-first material roll 12-second material roll

13-third material roller 14-chasing and cutting mechanism 3A-heating assembly

31-support frame 32-heating plate 33-heating tube

310-open cavity 41-first roller assembly 42-second roller assembly

15-pair roller driving mechanism 151-fifth driving roller 210-second synchronous belt

152-sixth drive roller 20C-first synchronizing wheel assembly 20D-second synchronizing wheel assembly

20E-third synchronizing wheel Assembly 20F-fourth synchronizing wheel Assembly 201-first synchronizing wheel

202-second synchronizing wheel 203-third synchronizing wheel 208-sixth synchronizing wheel

205-first timing belt 206-fourth timing wheel 207-fifth timing wheel

410-first heating pipe 411-first rotating shaft 412-first pressing sleeve

421-second heating pipe 422-second rotating shaft 423-second pressing sleeve.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to fig. 1-7 are exemplary and intended to be used to illustrate embodiments of the present invention, and should not be construed as limiting the invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which is only for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

Example one

As shown in fig. 1 to 7, the present embodiment provides a lithium battery compound machine, which includes a feeding device 10 for inputting a separator and a pole piece, a driving device 20 for laminating the pole piece and the separator to form a composite body of the pole piece and the separator and conveying the composite body, a heating device 30 for heating the composite body to a preset high temperature, a pressing device 40 for pressing the composite body heated to the high temperature by the heating device 30 to bond and form the pole piece and the separator at the high temperature, and a cutting device 50 for cutting the formed composite body to a preset length, wherein an output end of the feeding device 10 is connected to an input end of the driving device 20, the heating device 30 and the pressing device 40 are both disposed on a moving stroke of the composite body driven by the driving device 20, the heating device 30 and the pressing device 40 are sequentially disposed along a conveying direction of the composite body, the input end of the cutting device 50 is connected with the output end of the driving device 20; the cutting device 50 is a lithium battery pole piece cutting machine with mature technology, and the specific details of the structure of the lithium battery pole piece cutting machine are not described in detail in this embodiment, and the cutting device is applied to the output end of the driving device 20 to cut a formed pole piece, so as to obtain a formed product with a preset length.

Specifically, in the embodiment of the lithium battery compound machine, when the lithium battery compound machine works, the feeding device 10 inputs the pole pieces and the diaphragms to the driving device 20, the driving device 20 alternately overlaps and overlaps the corresponding pole pieces and diaphragms to form a compound body, and drives the compound body to convey towards the cutting device 50 so that the compound body sequentially passes through the heating device 30 and the pressing device 40, the heating device 30 heats the compound body to a high temperature, the pressing device 40 presses the pole pieces and diaphragms at the high temperature to bond and form the pole pieces and diaphragms, and the cutting device 50 intercepts the formed compound body output by the driving device 20 to a preset length. Therefore, the automatic thermal composite forming of the laminated battery can be realized, the manual operation time is reduced, and the production efficiency is effectively improved.

In this embodiment, as shown in fig. 1, the driving device 20 includes a fourth material roller 21, a fifth material roller 22, a sixth material roller 23, a seventh material roller 24, a first driving roller 25, a second driving roller 26, a third driving roller 27, a fourth driving roller 28, a first driving member (not numbered), a second driving member (not numbered), and a first driving motor (not numbered), the fourth material roller 21 and the fifth material roller 22 are arranged in a vertically symmetrical manner, the sixth material roller 23 and the seventh material roller 24 are arranged in a vertically symmetrical manner, the first driving roller 25 and the second driving roller 26 are arranged in a vertically symmetrical manner, and the third driving roller 27 and the fourth driving roller 28 are arranged in a vertically symmetrical manner; a mylar film is wound around each of the fourth material roller 21 and the fifth material roller 22, and the mylar film wound around the fourth material roller 21 is wound around the first driving roller 25, the third driving roller 27, and the sixth material roller 23 in this order; the mylar film wound around the fifth feed roller 22 is wound around the second driving roller 26, the fourth driving roller 28, and the seventh feed roller 24 in this order; first driving piece with the output of second driving piece respectively with first drive roller 25 with third drive roller 27 drive connection, first driving piece is used for the drive first drive roller 25 toward third drive roller 27's direction removes, the second driving piece is used for the drive third drive roller 27 toward fourth drive roller 28's direction removes, first driving motor pass through drive mechanism with fourth drive roller 28 drive is connected with the drive fourth synchronizing wheel subassembly 20F is rotatory, the mature and technological fashioned structure of drive mechanism technique, this embodiment is no longer repeated.

Specifically, the first driving member and the second driving member respectively drive the first driving roller 25 and the second driving roller 26 to move towards the third driving roller 27 and the fourth driving roller 28, so that a first guiding opening gradually narrowing towards the cutting device 50 is formed between the first driving roller 25 and the third driving roller 27 to guide the corresponding pole pieces and the membranes to be overlapped alternately to form a composite body; the first driving roller 25, the second driving roller 26, the third driving roller 27 and the fourth driving roller 28 clamp the composite body through the mylar film clamping composite body which is arranged in a vertically symmetrical mode, and the first driving motor drives the fourth driving roller 28 to rotate so that the mylar film moving along with the rotation of the roller shaft pulls the composite body to move, meanwhile, the stability of the composite body can be guaranteed, and the composite body is prevented from falling apart; the first driving member and the second driving member in this embodiment may be an air cylinder, a hydraulic cylinder or an electric push rod; the transmission mechanism can be a gear transmission mechanism or a synchronous belt transmission mechanism; the air cylinder, the hydraulic cylinder, the electric push rod, the gear transmission mechanism and the synchronous belt transmission mechanism are all structures with mature technology and are not described again, in the embodiment, the air cylinder, the hydraulic cylinder or the electric push rod is used as a roller shaft pushing source, and the gear transmission mechanism or the synchronous belt transmission mechanism is used for driving a roller shaft to rotate; compare in pole piece diaphragm complex body conveyor among the prior art only leads to a group to drive the complex body and remove to roller mechanism, has the complex body because of unilateral atress sticks up the limit, and the complex body that compression fittings 40 extrusion sticks up the limit has the fold to lead to the technical problem that product quality descends, the utility model provides a compounding machine adopts the driving method of two pairs of rollers, has effectually prevented that the complex body from sticking up the emergence of limit condition, makes the quality improvement of product.

In the embodiment, as shown in fig. 1, the feeding device 10 includes a first material roller 11, a second material roller 12, a third material roller 13 and a chasing mechanism 14, the number of the third material rollers 13 is two, the two third material rollers 13, the first material roller 11 and the second material roller 12 are circumferentially arranged around the input end of the driving device 20 at intervals, the first material roller 11 is arranged between the two third material rollers 13, wherein the third material roller 13 is arranged between the first material roller 11 and the second material roller 12, the number of the chasing and cutting mechanisms 14 is two, the two chasing and cutting mechanisms 14 are respectively arranged at the output ends of the first material roller 11 and the second material roller 12, the first material roller 11 and the second material roller 12 are wound with pole pieces, the polarity of the pole piece wound on the first material roller 11 is always opposite to that of the pole piece wound on the second material roller 12; the third material roller 13 is wound with a diaphragm; the chasing mechanism 14 may be a tab and sheet material cutter mechanism, which is a structure formed by a technology and mature technology, and is not described in detail in this embodiment and is applied to chasing and cutting the positive and negative electrode sheets so that the electrode sheets are conveyed to the first guide port in a single sheet structure.

In this embodiment, as shown in fig. 3, the heating device 30 includes a heating assembly 3A disposed on a moving stroke of the belt-shaped composite, the heating assembly 3A includes a supporting frame 31, a heating plate 32, heating tubes 33 and a power supply (not labeled), the supporting frame 31 is mounted on an external support, the supporting frame 31 is provided with an open cavity 310 disposed along a length direction of the supporting frame 31, openings of the open cavities 310 of the two supporting frames 31 are aligned with the moving stroke of the composite, the heating plate 32 is mounted in the open cavity 310 of the supporting frame 31, the number of the heating tubes 33 is multiple, the heating tubes 33 are spaced along the length direction of the heating plate 32, and an output end of the power supply is connected to the heating tubes 33 in a driving manner to drive the heating tubes 33 to generate heat; specifically, power drive heating tube 33 generates heat and makes heating plate 32 heat up and will generate heat the air heating around the plate 32 and make its temperature rise through the complex body that drive arrangement 20 carried with the radiation, and then realize the bonding of pole piece and diaphragm, compare the adoption in prior art and generate heat the roller and make pole piece and diaphragm bonding through the mode of hot rolling pressfitting, it is short to have a heat time, and pole piece and diaphragm are difficult to reach and accord with and realize adhesive temperature, lead to compound effect poor, influence product quality's technical problem, the utility model provides a heating device 30 passes through thermal radiation heating pole piece and diaphragm, can guarantee effectively that pole piece and diaphragm can be heated to predetermineeing the temperature, and then guarantee to accord with the effect.

In this embodiment, as shown in fig. 1, the pressing device 40 includes a first pressing roller assembly 41, a second pressing roller assembly 42, a third driving element (not labeled), a second driving motor (not labeled), and a third driving motor (not labeled), the first pressing roller assembly 41 and the second pressing roller assembly 42 are disposed in an up-down symmetrical manner with respect to a moving stroke of the composite as a center, an output end of the third driving element is connected to the first pressing roller assembly 41 in a driving manner to drive the first pressing roller assembly 41 to move toward the second pressing roller assembly 42 so as to enable the first pressing roller assembly 41 and the second pressing roller assembly 42 to cooperate and press the composite heated by the heating device 30, and an output end of the second driving motor is connected to the first pressing roller assembly 41 in a driving manner by a transmission mechanism to drive the first pressing roller assembly 41 to rotate, the third driving motor is in driving connection with the second pressing roller assembly 42 through a transmission mechanism so as to drive the second pressing roller assembly 42 to rotate, and the rotating directions of the first pressing roller assembly 41 and the second pressing roller assembly 42 are always opposite; specifically, the third driving member drives the first pressure roller assembly 41 to move and cooperate with the second pressure roller assembly 42 to clamp the complex heated by the heating device 30, the second driving motor and the third driving motor respectively drive the corresponding first pressure roller assembly 41 and the second pressure roller assembly 42 to rotate so as to extrude the complex, so as to bond and form the pole piece and the diaphragm, compared with the fixed double-roller structure adopted by the pressing device 40 in the prior art, the problems of difficult feeding/discharging, troublesome installation and influence on the production efficiency are caused, and meanwhile, the gap between the double rollers cannot be adjusted, so that the driving device 20 has general flexibility, the pressing device 40 provided by the embodiment of the utility model adopts the movable first pressure roller assembly 41 driven by the third driving member to cooperate with the second pressure roller assembly 42 to press the pole piece and the diaphragm, thereby facilitating the feeding/discharging and flexibly adjusting the gap between the first pressure roller assembly 41 and the second pressure roller assembly 42 according to the thickness of the product, the practicability is higher; the third driving part can be an air cylinder, a hydraulic cylinder or an electric push rod, and the second driving motor and the third driving motor are servo motors.

In this embodiment, the first material roller 11, the second material roller 12, the third material roller 13, the fourth material roller 21, the fifth material roller 22, the sixth material roller 23, the seventh material roller 24, the first driving roller 25, the second driving roller 26, the third driving roller 27, the fourth driving roller 28, the first pressing roller assembly 41 and the second pressing roller assembly 42 are all rotatable.

As shown in fig. 5, this embodiment further provides a method for manufacturing a laminated battery, where the method is a working process of the lithium battery thermal press compound machine, and the method includes the specific steps of:

s100: pulling the pole piece and the diaphragm wound on the first material roller 11, the second material roller 12 and the third material roller 13 respectively to the position between the first driving roller 25, the second driving roller 26, the third driving roller 27 and the fourth driving roller 28;

s200: the first driving member and the second driving member respectively drive the first driving roller 25 and the second driving roller 26 to move towards the third driving roller 27 and the fourth driving roller 28, so that the mylar film wound on the first driving roller 25, the second driving roller 26, the third driving roller 27 and the fourth driving roller 28 clamps a composite body formed by overlapping corresponding pole pieces and diaphragms in a staggered manner;

s300: setting a rotation speed parameter of a first driving motor and a cutting time point parameter of the chasing and cutting mechanism 14, wherein the first driving motor drives the fourth driving roller 28 to rotate, so that the first driving roller 25, the second driving roller 26, the third driving roller 27 and the fourth driving roller 28 synchronously rotate, and the chasing and cutting mechanism 14 cuts pole pieces with preset lengths according to requirements of products;

s400: setting temperature parameters of a heating device 30 and pressure parameters of a pressing device 40, wherein the heating device 30 heats the composite body to a preset temperature, and the pressing device 40 extrudes the composite body in a high-temperature state to bond and form the pole piece and the diaphragm;

s500: and setting the cutting time point parameter of the cutting device 50, and cutting the formed composite body to a preset length by the cutting device 50.

Example two

As shown in fig. 2, the feeding device 10 in this embodiment further includes a pair-roller driving mechanism 15, two sets of the third material roller 13, the first material roller 11, the pair-roller driving mechanism 15, and the second material roller 12 are all disposed at one side of the first guiding opening, the pair-roller driving mechanism 15 is disposed between the third material roller 13 and the second material roller 12, and the pair-roller driving mechanism 15 is configured to pre-press the pole pieces and the membranes conveyed by the second material roller 12 and the third material roller 13, so as to prevent the first guiding opening from being blocked due to an excessively large thickness of the composite body formed by the pole pieces and the membranes overlapped in a staggered manner and guided by the first guiding opening.

In this embodiment, the counter roller driving mechanism 15 includes a fourth driving member (not shown), a fifth driving roller 151 and a sixth driving roller 152, the fifth driving roller 151 and the sixth driving roller 152 are disposed at the output end of the third material roller 13 in a vertically symmetrical manner to form a gap for accommodating the composite to pass through, and the output end of the fourth driving member is connected to the fifth driving roller 151 in a driving manner to drive the fifth driving roller 151 to move in the direction of the sixth driving roller 152 so as to form a second guide opening between the fifth driving roller 151 and the sixth driving roller 152; the separator wound around the third material roll 13 is pulled by the driving device 20 to move in the direction of the second guide opening, and the pole piece wound around the first material roll 11 is pulled by the driving device 20 to move in the direction of the second guide opening and is overlapped on the corresponding separator through the second guide opening.

The fifth driving roller 151 and the sixth driving roller 152 in this embodiment are both rotatable.

As shown in fig. 6, this embodiment further provides a method for manufacturing a laminated battery, where the method is a working process of the lithium battery thermal press compound machine provided in this embodiment, and the method includes the specific steps of:

s100: pulling the pole piece and the diaphragm respectively wound around the first material roller 11 and one of the third material rollers 13 to the position between the fifth driving roller 151 and the sixth driving roller 152;

s200: the fourth driving member drives the fifth driving roller 151 to move toward the sixth driving roller 152 so as to cooperate with the sixth driving roller 152 to clamp the pole piece and the diaphragm between the fifth driving roller 151 and the sixth driving roller 152 to make them overlapped to form a first composite;

s300: pulling said first composite body, and the pole pieces and the diaphragms wound around said second material roll 12 and another said third material roll 13, respectively, between said first driving roll 25, said second driving roll 26, said third driving roll 27 and said fourth driving roll 28;

s400: the first driving member and the second driving member respectively drive the first driving roller 25 and the second driving roller 26 to move towards the third driving roller 27 and the fourth driving roller 28, so that the mylar film wound on the first driving roller 25, the second driving roller 26, the third driving roller 27 and the fourth driving roller 28 clamps a composite body formed by overlapping corresponding pole pieces, diaphragms and a first composite body in a staggered manner;

s500: the first driving motor drives the fourth driving roller 28 to rotate, so that the first driving roller 25, the second driving roller 26, the third driving roller 27 and the fourth driving roller 28 synchronously rotate to drive the composite body to move, and the chasing mechanism 14 cuts pole pieces with preset lengths according to the requirements of products;

s600: setting temperature parameters of a heating device 30 and pressure parameters of a pressing device 40, wherein the heating device 30 heats the composite body to a preset temperature, and the pressing device 40 extrudes the composite body in a high-temperature state to bond and form the pole piece and the diaphragm;

s700: the cutting time point parameter of the cutting device 50 is set. The cutting device 50 cuts the formed composite body to a predetermined length.

The rest of this embodiment is the same as the first embodiment, and the unexplained features in this embodiment are explained by the first embodiment, which is not described herein again.

EXAMPLE III

As shown in fig. 3, the driving device 20 in this embodiment includes a fourth material roller 21, a fifth material roller 22, a sixth material roller 23, a seventh material roller 24, a first synchronizing wheel assembly 20C, a second synchronizing wheel assembly 20D, a third synchronizing wheel assembly 20E, a fourth synchronizing wheel assembly 20F, a first driving member (not shown), a second driving member (not shown), and a first driving motor (not shown), wherein the fourth material roller 21 and the fifth material roller 22 are arranged symmetrically in the vertical direction, the sixth material roller 23 and the seventh material roller 24 are arranged symmetrically in the vertical direction, the first synchronizing wheel assembly 20C and the second synchronizing wheel assembly 20D are arranged symmetrically in the vertical direction, the third synchronizing wheel assembly 20E and the fourth synchronizing wheel assembly 20F are arranged symmetrically in the vertical direction, the fourth material roller 21 and the fifth material roller 22 both have mylar, and the mylar film wound around the fourth material roller 21 is sequentially wound around the first synchronizing wheel assembly 20C, A third synchronizing wheel assembly 20E and the sixth material roller 23; the mylar film wound around the fifth feed roll 22 is wound around the second synchronizing wheel assembly 20D, the fourth synchronizing wheel assembly 20F, and the seventh feed roll 24 in this order; the output ends of the first driving element and the second driving element are respectively in driving connection with the first synchronizing wheel assembly 20C and the third synchronizing wheel assembly 20E, the first driving element is used for driving the first synchronizing wheel assembly 20C to move towards the second synchronizing wheel assembly 20D, the second driving element is used for driving the third synchronizing wheel assembly 20E to move towards the fourth synchronizing wheel assembly 20F, and the first driving motor is in driving connection with the fourth synchronizing wheel assembly 20F through a transmission mechanism so as to drive the fourth synchronizing wheel assembly 20F to rotate.

In the present embodiment, as shown in fig. 3, the first synchronizing wheel assembly 20C and the third synchronizing wheel assembly 20E have the same structure, and the second synchronizing wheel assembly 20D and the fourth synchronizing wheel assembly 20F have the same structure; the first synchronizing wheel assembly 20C includes a first synchronizing wheel 201, a second synchronizing wheel 202, a third synchronizing wheel 203, a first mounting bracket (not marked in the drawing), and a first synchronizing belt 205, wherein the first synchronizing wheel 201, the second synchronizing wheel 202, and the third synchronizing wheel 203 are all rotatably connected to the first mounting bracket, the lower end surfaces of the second synchronizing wheel 202 and the third synchronizing wheel 203 are at the same height, and the lower ends of the second synchronizing wheel 202 and the third synchronizing wheel 203 extend to the outer side of the first mounting bracket; the first synchronous pulley 201, the second synchronous pulley 202 and the third synchronous pulley 203 are rotationally connected through the first synchronous belt 205; the second synchronizing wheel assembly 20D comprises a fourth synchronizing wheel 206, a fifth synchronizing wheel 207, a sixth synchronizing wheel 208, a second mounting frame and a second synchronizing belt 210, the fourth synchronizing wheel 206, the fifth synchronizing wheel 207 and the sixth synchronizing wheel 208 are all rotatably connected to the second mounting frame, the upper end surfaces of the fifth synchronizing wheel 207 and the sixth synchronizing wheel 208 are at the same height, and the upper ends of the fifth synchronizing wheel 207 and the sixth synchronizing wheel 208 extend to the outer side of the second mounting frame; the fourth synchronous wheel 206, the fifth synchronous wheel 207 and the sixth synchronous wheel 208 are rotationally connected through the second synchronous belt 210; the outer side walls of the second synchronous belt 210 and the first synchronous belt 205 are both provided with glue layers for increasing friction force; the adhesive layer can be made of silica gel or rubber; the first driving motor is in driving connection with the fourth synchronizing wheel 206 through a transmission mechanism so as to drive the fourth synchronizing wheel 206 to rotate, and the output end of the first driving piece is in driving connection with one of the first mounting frames; the output end of the second driving piece is in driving connection with one of the second mounting frames.

Specifically, the first driving element drives the first synchronous wheel assembly 20C to move towards the second synchronous wheel assembly 20D, so that the first synchronous wheel assembly 20C and the second synchronous wheel assembly 20D drive the mylar film to clamp and convey the composite body by using the synchronous belt coated with the adhesive layer; second driving piece drive third synchronizing wheel subassembly 20E removes so that third synchronizing wheel subassembly 20E and fourth synchronizing wheel subassembly 20F utilize the hold-in range that the coating has the glue film to drive wheat and draw the membrane to press from both sides tightly and carry the complex body, and first driving motor drive fourth synchronizing wheel subassembly 20F is rotatory, and then the drive complex body removes, the embodiment of the utility model provides an in driving device 20 adopt the synchronous belt that has the glue film to bring coiling wheat and draw the membrane, improve area of contact, improve frictional force, effectually prevent that wheat from drawing the membrane and skidding, improve product quality.

As shown in fig. 7, this embodiment further provides a method for manufacturing a laminated battery, where the method is a working process of the lithium battery thermal press compound machine, and the method includes the specific steps of:

s100: pulling the pole pieces and the diaphragms respectively wound on the first material roller 11, the second material roller 12 and the third material roller 13 to be between the first synchronous belt 205 and the second synchronous belt 210;

s200: the first driving member and the second driving member respectively drive one of the first mounting frames and one of the second mounting frames to move towards the other of the first mounting frames and the other of the second mounting frames, so that mylar films respectively wound on the first synchronous belt 205 and the second synchronous belt 210 clamp a composite body formed by overlapping corresponding pole pieces and diaphragms in a staggered manner;

s300: setting a rotation speed parameter of a first driving motor and a cutting time point parameter of the chasing and cutting mechanism 14, wherein the first driving motor drives the fourth synchronous wheel 206 to rotate, so that the second synchronous belt 210 rotates to match the first synchronous belt 205 to drive the complex to move, and the chasing and cutting mechanism 14 cuts pole pieces with preset lengths according to the requirements of products;

s400: setting temperature parameters of a heating device and pressure parameters of a pressing device, heating the complex to a preset temperature by the heating device 30, and extruding the complex at a high temperature by the pressing device 40 to bond and form the pole piece and the diaphragm;

Example four

As shown in fig. 3, the first platen roller assembly 41 in this embodiment includes a first heating pipe 410, a first rotating shaft 411, and a first platen sleeve 412 sleeved on the first rotating shaft 411, where the first rotating shaft 411 is connected to an output end of the third driving element, the first rotating shaft 411 is connected to an output end of the second driving motor, a first installation cavity for accommodating the first heating pipe 410 is disposed inside the first platen sleeve 412, the first platen sleeve 412 is made of an aluminum alloy or a copper alloy, and the first heating pipe 410 is disposed inside the first installation cavity; the second pressing roller assembly 42 includes a second heating pipe 421, a second rotating shaft 422, and a second pressing sleeve 423 sleeved on the second rotating shaft 422, the second rotating shaft 422 is connected to an output end of the third driving motor, a second installation cavity for accommodating the second heating pipe 421 is disposed on an inner side of the second pressing sleeve 423, the second pressing sleeve 423 is made of aluminum alloy or copper alloy, and the second heating pipe 421 is disposed in the second installation cavity; the first heating pipe 410 and the second heating pipe 421 are used to heat the first pressing sleeve 412 and the second pressing sleeve 423, respectively; specifically, power supply unit drive heating pipe generates heat so that the pressfitting face of first pressure cover 412 and second pressure cover 423 generates heat, can effectively guarantee the temperature of complex body, improves compound effect.

In this embodiment, the number of the first mounting cavities and the number of the second mounting cavities are multiple, the number of the first heating pipes 410 and the number of the second heating pipes 421 are multiple, the multiple first mounting cavities are annularly arranged around the inner hole of the first pressing sleeve 412 at intervals, and the multiple groups of first heating pipes 410 are mounted in the corresponding first mounting cavities and abut against the inner walls of the first mounting cavities to realize heat conduction; the plurality of second installation cavities are annularly arranged around the inner hole of the second pressing sleeve 423 at intervals, and the plurality of groups of first heating pipes 410 are installed in the corresponding second installation cavities and are abutted against the inner wall of the second installation cavities to realize heat conduction.

In this embodiment, the first heating pipe 410 and the second heating pipe 421 are both U-shaped electric heating pipes with mature and formed technologies, and the U-shaped electric heating pipes have a larger heating area in a smaller volume, so that the heating efficiency is higher and the effect is better.

EXAMPLE five

As shown in the figures, the supporting frame 31 in this embodiment is a cuboid, and the cross section of the supporting frame is an Contraband-shaped structure, the bottom wall of the open cavity 310 is hollowed with a plurality of limiting grooves arranged at intervals along the length direction of the open cavity, the number of the heating plates 32 is multiple, each heating plate 32 is fixed and locked in the corresponding limiting groove through screws, each heating tube 33 is installed on the corresponding heating plate 32, the heating device 30 further includes a plurality of independent switches, one end of each independent switch is electrically connected to a power supply, and the other end of each independent switch is electrically connected to the corresponding heating tube 33; specifically, the power supply drives the heating tube 33 through the corresponding independent switch according to the preset working condition so as to adjust the length of the heat radiation area of the heating device 30, so that the heating time of the pole piece and the diaphragm is realized, and the flexibility and the practicability of the product are improved.

In this embodiment, the heating tube 33 is U type electrothermal tube, and U type electrothermal tube has bigger heating area in less volume, and the efficiency of generating heat is higher, and the effect is better, and is further, the lateral wall of support frame 31 is provided with the heat preservation, the heat preservation can be formed by pottery, heat preservation cotton or thermal-insulated silica gel preparation, and the heat preservation is used for reducing support frame 31 and external heat transfer efficiency, effectual reduction calorific loss, and then improves heat radiation efficiency, improves heating effect, shortens heat duration.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A lithium battery composite machine, comprising:

a machine base;

the feeding device is arranged on the base and is used for inputting the pole piece and the diaphragm;

the driving device is arranged on the base, the input end of the driving device is connected with the output end of the feeding device, and the driving device is used for superposing the pole piece and the diaphragm to enable the pole piece and the diaphragm to form a complex and conveying the complex;

the heating device is arranged on a moving stroke of the compound body which is driven by the driving device to move and is used for heating the compound body to a preset high temperature;

the pressing device is arranged on a moving stroke of the composite body which is driven by the driving device to move and is used for extruding the composite body which is heated to high temperature by the heating device so as to bond and form the pole piece and the diaphragm which are at high temperature;

the cutting device is arranged on the machine base, the input end of the cutting device is connected with the output end of the driving device, and the cutting device is used for intercepting the formed composite body to a preset length.

2. The lithium battery pack as claimed in claim 1, wherein: the driving device comprises a fourth material roller, a fifth material roller, a sixth material roller, a seventh material roller, a first driving roller, a second driving roller, a third driving roller, a fourth driving roller, a first driving piece, a second driving piece and a first driving motor, wherein the fourth material roller and the fifth material roller are symmetrically arranged up and down; the fourth material roller and the fifth material roller are both wound with mylar films, and the mylar films wound on the fourth material roller sequentially pass through the first driving roller, the third driving roller and the sixth material roller; the mylar film wound on the fifth material roller sequentially passes through the second driving roller, the fourth driving roller and the seventh material roller; the output ends of the first driving piece and the second driving piece are respectively in driving connection with the first driving roller and the third driving roller, and the first driving motor is in driving connection with the fourth driving roller through a transmission mechanism.

3. The lithium battery pack as claimed in claim 1, wherein: the driving device comprises a fourth material roller, a fifth material roller, a sixth material roller, a seventh material roller, a first synchronous wheel assembly, a second synchronous wheel assembly, a third synchronous wheel assembly, a fourth synchronous wheel assembly, a first driving piece, a second driving piece and a first driving motor, wherein the fourth material roller and the fifth material roller are symmetrically arranged up and down, the sixth material roller and the seventh material roller are symmetrically arranged up and down, the first synchronous wheel assembly and the second synchronous wheel assembly are symmetrically arranged up and down, the third synchronous wheel assembly and the fourth synchronous wheel assembly are symmetrically arranged up and down, the fourth material roller and the fifth material roller are both wound with a mylar film, and the mylar film wound on the fourth material roller sequentially passes through the first synchronous wheel assembly, the third synchronous wheel assembly and the sixth material roller; the Mylar film wound on the fifth material roller sequentially passes through the second synchronous wheel assembly, the fourth synchronous wheel assembly and the seventh material roller; the output ends of the first driving piece and the second driving piece are respectively in driving connection with the first synchronous wheel component and the third synchronous wheel component, and the first driving motor is in driving connection with the fourth synchronous wheel component through a transmission mechanism so as to drive the fourth synchronous wheel component to rotate.

4. The lithium battery pack as claimed in claim 3, wherein: the first synchronous wheel component and the third synchronous wheel component have the same structure, and the second synchronous wheel component and the fourth synchronous wheel component have the same structure; the first synchronizing wheel assembly comprises a first synchronizing wheel, a second synchronizing wheel, a third synchronizing wheel, a first mounting frame and a first synchronizing belt, the first synchronizing wheel, the second synchronizing wheel and the third synchronizing wheel are all rotatably connected to the first mounting frame, the lower end faces of the second synchronizing wheel and the third synchronizing wheel are located at the same height, and the lower ends of the second synchronizing wheel and the third synchronizing wheel extend to the outer side of the first mounting frame; the first synchronizing wheel, the second synchronizing wheel and the third synchronizing wheel are rotationally connected through the first synchronizing belt; the second synchronizing wheel assembly comprises a fourth synchronizing wheel, a fifth synchronizing wheel, a sixth synchronizing wheel, a second mounting frame and a second synchronous belt, the fourth synchronizing wheel, the fifth synchronizing wheel and the sixth synchronizing wheel are all rotatably connected to the second mounting frame, the upper end faces of the fifth synchronizing wheel and the sixth synchronizing wheel are at the same height, and the upper ends of the fifth synchronizing wheel and the sixth synchronizing wheel extend to the outer side of the second mounting frame; the fourth synchronous wheel, the fifth synchronous wheel and the sixth synchronous wheel are rotationally connected through the second synchronous belt; the outer side walls of the second synchronous belt and the first synchronous belt are provided with glue layers for increasing friction force; the first driving motor is in driving connection with the fourth synchronizing wheel through a transmission mechanism so as to drive the fourth synchronizing wheel to rotate, and the output end of the first driving piece is in driving connection with the first mounting frame; the output end of the second driving piece is in driving connection with the second mounting rack.

5. The lithium battery pack as claimed in claim 1, wherein: the feeding device comprises a first material roller, a second material roller, a third material roller and a chasing and cutting mechanism, the number of the third material rollers is two, the two sets of the third material rollers, the first material roller and the second material roller are arranged around the input end of the driving device at intervals in the circumferential direction, the first material roller is arranged between the two third material rollers, the third material roller is arranged between the first material roller and the second material roller, the number of the chasing and cutting mechanism is two, the two sets of the chasing and cutting mechanism are respectively arranged at the output ends of the first material roller and the second material roller, the first material roller and the second material roller are wound with pole pieces, and the polarity of the pole pieces wound on the first material roller is always opposite to that of the pole pieces wound on the second material roller; and the third material roller is wound with a diaphragm.

6. The lithium battery pack as claimed in claim 5, wherein: material feeding unit is still including being used for the pre-compaction warp the second material roller with the pair roller actuating mechanism of pole piece and diaphragm that the third material roller was carried, pair roller actuating mechanism locates the third material roller with between the second material roller, pair roller actuating mechanism includes fourth drive piece, fifth drive roller and sixth drive roller, the fifth drive roller with the sixth drive roller is the symmetry about being in the output of third material roller is in order to be formed with the clearance that is used for holding the complex body and passes through, the output of fourth drive piece with the fifth drive roller drive is connected.

7. The lithium battery pack as claimed in claim 1, wherein: heating device includes the support frame, generates heat board, heating tube and is used for the power supply messenger the power that the heating tube generates heat, the support frame is installed on external support, the support frame is equipped with the opening cavity, the opening of opening cavity aims at the removal stroke of complex body, the heating tube is installed in the opening cavity, the quantity of heating tube is the multiunit, the heating tube is followed the length direction interval distribution of heating board is in order to form the heating radiation district that sets up along the removal stroke of complex body.

8. The lithium battery pack as claimed in claim 7, wherein: the heating device comprises a cavity body, a plurality of limiting grooves are arranged on the bottom wall of the cavity body, the limiting grooves are arranged at intervals along the length direction of the cavity body, the number of heating plates is multiple, each heating plate is installed in the corresponding limiting groove, each heating tube is installed on the corresponding heating plate, the heating device further comprises a plurality of independent switches, one end of each independent switch is electrically connected with a power supply, and the other end of each independent switch is electrically connected with the corresponding heating tube.

9. The lithium battery pack compounding machine according to any one of claims 1 to 8, wherein: the pressing device comprises a first pressing roller, a second pressing roller, a third driving piece, a second driving motor and a third driving motor, the first pressing roller and the second pressing roller are symmetrically arranged up and down by taking the moving stroke of the composite body as the center, the output end of the third driving piece is in driving connection with the first pressing roller to drive the first pressing roller to move towards the direction of the second pressing roller so as to enable the first pressing roller and the second pressing roller to be matched and extrude the composite body heated by the heating device, the output end of the second driving motor is in driving connection with the first pressing roller through a transmission mechanism so as to drive the first pressing roller to rotate, the third driving motor is in driving connection with the second pressing roller through the transmission mechanism so as to drive the second pressing roller to rotate, and the rotating directions of the first pressing roller and the second pressing roller are opposite all the time.

10. The lithium battery pack as claimed in claim 9, wherein: the pressing device further comprises a plurality of heating pipes, the number of the heating pipes is multiple, the first pressing roller and the second pressing roller are both provided with cavities for containing the heating pipes, the heating pipes are installed on the inner wall of the cavities and distributed annularly, each heating pipe is arranged along the length direction of the cavity, and each heating pipe is electrically connected with an external power supply device.