CN114024039A

CN114024039A - Automatic press diaphragm and press pole piece group lamination carrying device

Info

Publication number: CN114024039A
Application number: CN202210000732.5A
Authority: CN
Inventors: 唐延弟; 周贤文; 宾兴; 刘成; 徐骏
Original assignee: Shenzhen Sinvo Automatic Co Ltd
Current assignee: Shenzhen Sinvo Automatic Co Ltd
Priority date: 2022-01-04
Filing date: 2022-01-04
Publication date: 2022-02-08
Anticipated expiration: 2042-01-04
Also published as: CN114024039B

Abstract

The invention discloses an automatic diaphragm pressing and pole piece pressing assembly lamination carrying device which comprises a lamination platform and a driving mechanism, wherein the driving mechanism is horizontally arranged at a lamination station and is internally provided with a platform space; the driving mechanism comprises a jacking assembly, a cutting assembly and a film pressing assembly, the jacking assembly is arranged below the platform space, and the cutting assembly and the film pressing assembly comprise two groups which are respectively arranged at the left side and the right side of the platform space; the lamination platform is movably arranged in the platform space and comprises a bearing component and a pressing component, and the bearing component is horizontally arranged; the material pressing assemblies comprise two sets which are respectively arranged on the left side and the right side of the bearing assembly. The automatic lamination and lamination avoiding device has the advantages that the automatic bearing of the lamination and the carrying of the pole piece group are realized, the material waiting time is reduced, the whole line productivity is improved, the automatic pressing function is realized, the carrying position stability of the pole piece group is ensured, the automatic carrying connection of the lamination and the pole piece group is ensured, the automatic lamination and avoiding interference with the pole piece lamination are realized, and the automatic connection of the lamination and the lamination is effectively ensured.

Description

Automatic press diaphragm and press pole piece group lamination carrying device

Technical Field

The invention relates to the field of automation equipment, in particular to an automatic diaphragm pressing and pole piece group lamination carrying device in the field of automatic production equipment of lithium ion power batteries.

Background

Lithium battery refers to a battery containing Lithium including metallic Lithium, Lithium alloy and Lithium ion, Lithium polymer in electrochemical system. Lithium batteries can be broadly classified into two types: lithium metal batteries and lithium ion batteries. A lithium battery is a type of rechargeable battery that mainly operates by movement of lithium ions between a positive electrode and a negative electrode. During the charge and discharge process, lithium ions are intercalated and deintercalated between the two electrodes: when the battery is charged, lithium ions are extracted from the positive electrode and are inserted into the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state; the opposite is true during discharge. Batteries using a material containing lithium as an electrode are typical of modern high-performance batteries.

The electric core of the lithium ion battery is generally formed by overlapping positive and negative pole pieces in a staggered manner, and the positive and negative pole pieces of a single chip are firstly manufactured in the manufacturing process of the electric core. And then, overlapping the positive and negative pole pieces on the lamination platform in a staggered manner to form the battery core, wherein a diaphragm with an insulating and isolating function is required to be inserted between the positive and negative pole pieces in the staggered lamination process of the positive and negative pole pieces. In the actual lamination process of the pole piece lamination, a layer of pole piece is generally laminated on a lamination platform, then a diaphragm is covered on the pole piece, and the lamination is continuously and alternately circulated until the lamination of the battery cell is completed. In the actual lamination process, after the pole pieces are stacked, generally pulling a strip-shaped diaphragm to one side of a lamination platform from the upper part of the pole piece through a film pulling mechanism, so that the strip-shaped diaphragm covers the surface of the pole piece, then placing the pole piece with another attribute on the diaphragm, then horizontally pulling the strip-shaped diaphragm to the other side of the lamination platform, so that the diaphragm covers the surface of the pole piece with the other attribute, and repeating the steps, wherein the diaphragm is pulled back and forth between the two sides of the lamination platform to cover the surface of the pole piece until a required battery core pole piece group is formed, and then cutting off the diaphragm strip.

Based on the above lamination process background, the following technical problems need to be solved in the lamination automatic production line integrated design process: 1. in the lamination process, the strip-shaped diaphragm needs to be pulled back and forth so as to be alternately covered on the surfaces of pole pieces with different attributes, so that the diaphragm needs to have a film pressing function when being pulled out of the film from two sides of the lamination platform, for example, the left-side film-covered layer needs to be compressed after the diaphragm strip is pulled from the right side of the platform to the left side of the platform and before the film is pulled from the left side, and similarly, the right-side film-covered layer needs to be compressed in the process from the right side film-covered layer to the left side; therefore, the problem of automatic diaphragm pressing on two sides of the lamination platform in the diaphragm laminating process needs to be solved, the problem of motion interference between the pressed film and the positive and negative pole piece laminations needs to be solved, and the pressed film is prevented from influencing the positive and negative pole piece laminations. 2. The traditional lamination platform adopts a fixed structure, namely, after a lamination mechanism and a film covering mechanism form a pole piece group on the lamination platform, the pole piece group is taken out to carry out lamination and fixation of the pole piece group, and the material waiting time exists during the lamination and the encapsulation, and if the encapsulation process needs to be carried out after the lamination is formed into the pole piece group, the production capacity is influenced; therefore, the problem of reducing the waiting time needs to be solved in the whole-line automatic design process of the battery cell. 3. In the process of loading the lamination and carrying the electrode plate group with the lamination platform as a carrier, the problems of automatic positioning and lifting of the lamination platform are required to be solved at a lamination station, and meanwhile, the positive and negative electrode plates and the diaphragm which are overlapped up and down on the lamination platform are overlapped together to form the electrode plate group only by self gravity, so that the positive and negative electrode plates and the diaphragm in the overlapped electrode plate group are easy to shift, and the problem of fixing the position of the lamination platform to the electrode plate group is required to be solved in the process of carrying the electrode plate group. 4. In addition, when the lamination platform switches between the two processes of fixing the pole piece group and laminating, the problem of motion interference generated between the pole piece group fixing mechanism and the lamination needs to be solved, and the pole piece group fixing mechanism needs to be ensured not to influence the lamination action.

Disclosure of Invention

The technical problem to be solved by the invention is to provide an automatic diaphragm pressing and pole piece group lamination carrying device which can realize automatic bearing of laminations and carrying of a pole piece group, effectively reduce waiting time, excellently improve whole line productivity, has a self-pressing function, ensures stability of carrying position of the pole piece group, has functions of automatic jacking, cutting and rotary interference avoidance, effectively ensures automatic connection of the laminations and the pole piece group carrying, realizes automatic film pressing and interference avoidance with the pole piece laminations through film pressing in two freedom directions of the outer side and the upper side, and effectively ensures automatic connection of the film pressing and the laminations.

The technical scheme adopted by the invention is as follows: an automatic diaphragm pressing and pole piece pressing assembly lamination carrying device comprises a lamination platform and a driving mechanism, wherein the driving mechanism is horizontally arranged at a lamination station and a platform space is arranged in the driving mechanism; the driving mechanism comprises a jacking assembly, a cutting assembly and a film pressing assembly, the jacking assembly is arranged below the platform space, and the cutting assembly and the film pressing assembly comprise two groups which are respectively arranged at the left side and the right side of the platform space; the lamination platform is movably arranged in the platform space and comprises a bearing component and a pressing component, and the bearing component is horizontally arranged; the two pressing assemblies are respectively arranged on the left side and the right side of the bearing assembly and are correspondingly arranged above the cutting assembly; the jacking assembly outputs upward power to the bearing assembly, and the lamination platform is positioned and jacked; the cutting assembly outputs upward power and rotary power to the pressing assembly, and the pressing assembly compresses or releases the pole piece group on the bearing assembly from two sides; the lamination assembly compresses the lamination diaphragm from the outer side and the upper side.

Preferably, the bearing assembly comprises a platform support and a laminated support plate, wherein the platform support is horizontally arranged, two sides of the bottom of the platform support vertically extend downwards and are provided with linear sliding seats, and the linear sliding seats are slidably connected to the sliding rails; the lamination support plate is horizontally arranged above the platform support, the bottom of the lamination support plate is vertically connected with at least two guide posts, and the guide posts are slidably inserted on the platform support.

Preferably, the material pressing assembly comprises two material pressing supports, a material pressing sliding seat, a spring column and material pressing sheets, wherein the two material pressing supports are arranged on the side wall of the platform support at intervals, a supporting platform is formed at the upper part of each material pressing support, and a linear slide rail is vertically arranged on the side wall of each material pressing support below the supporting platform; the pressing sliding seat is connected to the linear sliding rail in a sliding mode, and the top of the pressing sliding seat extends horizontally to form an installation platform.

Preferably, the spring column is vertically and slidably inserted on the supporting platform and is fixedly inserted in the mounting platform, the upper end and the lower end of the spring column respectively extend to the upper part of the supporting platform and the lower part of the mounting platform, a spring is sleeved on the spring column and is arranged between the supporting platform and the mounting platform, and the spring pushes the material pressing sliding seat downwards by downward elasticity; the pressing sheet is horizontally connected to the top of the spring column, and the spring elasticity drives the pressing slide to drive the spring column to drive the pressing sheet to press downwards.

Preferably, the driving mechanism further comprises a driving support plate, the driving support plate is horizontally arranged, unit slide rails are arranged on the left side and the right side of the driving support plate at intervals in parallel, the unit slide rails are butted with external slide rails, and the linear slide carriage is slidably embedded on the unit slide rails; the jacking assembly comprises a jacking cylinder and a jacking column, the jacking cylinder is arranged at the bottom of the driving support plate, and the output end of the jacking cylinder is arranged upwards; the jacking column is vertically connected to the output end of the jacking cylinder, penetrates through the driving support plate and extends upwards into the lamination platform, and positions and lifts the lamination platform.

Preferably, the cutting assembly comprises two cutting motors, a transmission cam, a cutting seat, a cutting spring, a cutting transmission wheel, a rotating motor and a cutting rod, wherein the two cutting motors are arranged at the bottom of the driving support plate, the output direction of the two cutting motors faces the outer side of the driving support plate, and the transmission cam is connected to an output shaft of the cutting motors; the material cutting seats are correspondingly arranged on the outer side of the material cutting motor, penetrate through the driving support plate up and down, and freely slide on the driving support plate along the vertical direction.

Preferably, the cutting rod is vertically connected to the output end of the rotating motor and is driven by the rotating motor to rotate, and the top of the cutting rod is connected with the lamination platform; the cutting motor converts the rotary motion into power in the vertical direction through the transmission cam and the cutting transmission wheel, the power is output to the lamination platform through the cutting rod, and the rotary motor outputs the rotary power to the lamination platform through the cutting rod.

Preferably, the film pressing assembly comprises a film pressing support plate, a film pressing motor, a film pressing support, a horizontal transmission component, a lifting transmission component and a film pressing sheet, wherein the film pressing support plate is vertically arranged; the film pressing motor is arranged on the side part of the film pressing support plate; the film pressing support is arranged at the upper part of the film pressing support plate, a transmission shaft is rotatably inserted in the film pressing support, and the transmission shaft is connected with an output shaft of a film pressing motor through a transmission belt; the horizontal transmission component, the lifting transmission component and the film pressing sheet comprise two sets which are respectively arranged above two ends of the transmission shaft, and the horizontal transmission component and the lifting transmission component are connected with the transmission shaft through cam components; the film pressing sheets are connected with the horizontal transmission component and the lifting transmission component, the rotating power of the transmission shaft is transmitted to the horizontal transmission component and the lifting transmission component through the cam component, and the horizontal transmission component and the lifting transmission component drive the film pressing sheets to compress or loosen the diaphragms on the lamination platform from the horizontal direction and the vertical direction.

Preferably, the cam part comprises a first cam and a second cam, the first cam and the second cam comprise two sets, and the first cam and the second cam are respectively connected to two ends of the transmission shaft at intervals and extend out of the outer side part of the film pressing support.

Preferably, the horizontal transmission component comprises a transmission swinging block, a second transmission wheel, a second sliding seat and a film pressing support block, wherein the transmission swinging block is rotatably connected to the side wall of the film pressing support and extends upwards in an inclined manner to form a shifting block structure with an inner concave groove body at the upper end, the lower end of the transmission swinging block is a circular block body, and the circular block body is close to the first cam; the second sliding seat is connected to a linear sliding rail arranged at the top of the film pressing support in a sliding mode along the horizontal direction, and the second sliding seat freely slides along the direction close to or far away from the lamination platform; the second driving wheel is rotatably connected to the side wall of the second sliding seat and is positioned in a shifting block inner groove body above the transmission swinging block, the first cam pushes the transmission swinging block to rotate through the circular block body, and the transmission swinging block pushes the second driving wheel to drive the second sliding seat to horizontally and linearly slide through a shifting block structure at the upper part; the film pressing supporting block is vertically arranged on the second sliding seat.

Preferably, the lifting transmission component comprises a first sliding seat, a first transmission wheel, a transmission bracket, a third sliding seat, a third transmission wheel and a connecting bracket, wherein the first sliding seat is connected to the side wall of the film pressing support in a sliding manner along the vertical direction; the first driving wheel is rotatably connected to the side wall of the first sliding seat and is positioned above the second cam, and the second cam rotates to push the first sliding seat to move up and down through the first driving wheel; the transmission bracket is vertically arranged at the top of the first sliding seat, and a horizontal strip groove is formed in the middle of the transmission bracket; the third sliding seat is connected to one side wall of the film pressing supporting block in a sliding manner along the vertical direction; the upper end of the connecting bracket is connected with the side wall of the third sliding seat through a connecting rod, the side wall of the lower part of the connecting bracket is rotatably connected with a third driving wheel, and the third driving wheel is embedded into the horizontal strip groove and freely slides in the horizontal strip groove; the film pressing sheet is connected to the top of the third sliding seat and horizontally extends towards the direction of the lamination platform.

The invention has the advantages of

The invention is designed aiming at the technical problems in the process of manufacturing the battery cell, carries out independent research and development, realizes automatic bearing lamination and pole piece group carrying, effectively reduces the waiting time, excellently promotes the whole line productivity, has the function of self-pressing, ensures the stability of the carrying position of the pole piece group, has the functions of automatic jacking, cutting and rotary interference avoidance, effectively ensures the automatic connection of the lamination and the pole piece group carrying, realizes the automatic film pressing and avoidance of the interference with the pole piece lamination through film pressing in two freedom directions of the outer side and the upper side, and effectively ensures the automatic diaphragm pressing and pole piece group lamination carrying device of the automatic connection of the film pressing and the lamination.

Aiming at the integration requirement of the automatic production line of the battery cell, the invention originally takes the lamination platform as a lamination bearing and pole piece group carrying structure at the same time, the lamination platform is arranged at the lamination station, a plurality of lamination platforms of the lamination platform flow between the lamination station and the blanking station to realize platform circulation supply, after the full platform after lamination is completed is moved away, the next empty platform is jointed and enters the lamination station for lamination, the waiting time between lamination and blanking is effectively reduced, and the whole-line productivity is greatly improved while the whole-line automation degree is improved.

Aiming at the conditions of the automatic cyclic supply process requirement of the lamination platform and the high position stability requirement of the pole piece group in the carrying process, the invention integrates and designs the material pressing assemblies in the lamination platform, wherein the material pressing assemblies comprise two groups which are respectively arranged at the left side and the right side of the lamination support plate, and the material pressing assemblies are used for pressing the pole piece group which is laminated on the lamination platform from two sides, so that the position stability of the pole piece group is ensured in the pole piece group carrying process of the lamination platform, and the pole pieces and the diaphragms in the lamination platform are not staggered. Meanwhile, the lamination platform has a main function of serving as a bearing part during lamination besides carrying the pole piece group, so that the pressing assembly needs to avoid interference with the action of the lamination on the premise of ensuring the compression of the pole piece group. The material pressing component takes material pressing supports arranged on two side walls of a platform support as carriers, spring columns are vertically inserted into the material pressing supports, two ends of each spring column respectively extend to the upper side and the lower side of each material pressing support and are movably connected with the material pressing supports, material pressing sheets are horizontally connected to the tops of the spring columns, the lower portions of the spring columns are inserted into material pressing sliding seats, and the material pressing sliding seats are slidably connected to the side walls of the platform support along the vertical direction; in a natural state, the elastic force generated by the elastic force sleeved outside the spring column pushes the material pressing slide seat downwards, so that the spring column of the material pressing slide seat belt descends, and the material pressing sheet of the spring column belt presses the pole piece group downwards; when the lamination platform moves to the lamination station for lamination, a cutting assembly of a driving mechanism arranged at the lamination station firstly drives the spring column to rotate, so that the pressing sheet rotates to the outer side from the upper part of the lamination platform, and the problem of interference of lamination is solved; in addition, when the pole piece group is blanked, the blanking assembly outputs upward power to the pressing assembly, so that the pressing piece of the spring column belt moves upward, the pole piece group is loosened, and the pole piece group is taken out conveniently.

Aiming at the problems of positioning and lifting the lamination at the lamination station of the lamination platform, the invention drives the material pressing sheet to rotate and rise so as to avoid the problems of lamination interference and electrode sheet group blanking, and alternately presses the diaphragm process requirement during lamination. The driving mechanism is fixedly arranged at the lamination platform and does not move along with the lamination platform, and meanwhile, the unit slide rail inside the driving mechanism is in butt joint with the upper slide rail so that the lamination platform can slide in. The driving mechanism uses the driving support plate as a bearing structure and integrally comprises a jacking assembly, a cutting assembly and a film pressing assembly.

The jacking assembly is arranged below the driving support plate, the jacking cylinder is used as a power mechanism and outputs upward power to the jacking column, the jacking column penetrates through the driving support plate and a platform support of the lamination platform to jack a vacuum suction plate which is arranged above the platform support and used for bearing the lamination upwards to the position below the lamination mechanism, so that the lamination mechanism can conveniently overlap positive and negative pole pieces onto the vacuum suction plate, the vacuum suction plate is jacked upwards, and the platform support is guided and limited by the jacking column at the same time, so that the integral automatic positioning of the lamination platform is realized. The material cutting assemblies comprise two groups, and the material pressing assemblies of the two groups of material cutting assemblies which vertically correspond to the lamination platforms are arranged on the left side and the right side of the driving support plate.

Based on the requirements of pole piece pressing and pole piece loosening blanking and lamination interference avoidance required by the material pressing assembly, the material cutting assembly simultaneously outputs upward power to the material pressing assembly of the lamination platform for loosening the pole piece, and is also integrated with the function of outputting rotary power in a horizontal plane; specifically, from the perspective of space utilization, a cutting motor arranged at the bottom of a driving support plate is used as an upward power output part, the rotary power of the cutting motor is converted into upward linear power through a driving cam and a cutting driving wheel, a cutting support vertically penetrating and arranged on the driving support plate is driven to move up and down, the cutting support drives a rotary motor vertically arranged at the bottom of the cutting support to move up and down, an output shaft of the rotary motor is vertically connected with a cutting rod, the rotary motor and the cutting rod of the cutting support belt are jacked up upwards, the rotary motor also drives the cutting rod to move rotationally, so that the cutting rod connected with a spring column of a material pressing assembly at the top end jacks up the spring column to loosen a pole piece group, and meanwhile, the spring column of the cutting rod and a material pressing piece on the spring column are also jacked to move rotationally, so that the material pressing piece rotates to a position above a lamination platform to press the pole piece group or when lamination is carried out, the horizontal rotation is to the lamination platform outside, avoids the motion interference during the lamination.

The film pressing assemblies comprise two groups which are respectively arranged on the left side and the right side above the driving support plate, and when the two groups of film pressing assemblies are stacked, the diaphragms are pressed from the two sides of the diaphragms after the diaphragms cover the surfaces of the pole pieces. Because the film pressing is carried out alternately in the lamination process, the film pressing is ensured to avoid the motion interference with the lamination pole piece in real time, in order to realize the real-time avoidance of the motion interference while pressing the diaphragm, the film pressing assembly realizes film pressing from two freedom directions of the outer side and the upper side, the film pressing assembly moves to the upper part of the diaphragm from the outer side of a lamination platform in an arc path from the view of the motion trail to press the diaphragm so as to realize the driving of the two freedom directions, the film pressing assembly is realized by only one power output, specifically, the film pressing assembly takes a film pressing support plate vertically arranged on a driving support plate as a bearing structure, a film pressing motor is arranged on one side of the lower part of the film pressing support plate as a power output part, a film pressing support is arranged at the top of the film pressing support plate, the power of the film pressing motor is output to a transmission shaft inserted in the film pressing support through transmission, and two ends of the transmission shaft respectively form two power output fulcrums, the two output fulcrums output synchronously to form a synchronous movement double-side film pressing mode, so that the stability during film pressing can be better ensured compared with single-side film pressing, and the influence on the surface flatness of the diaphragm is reduced; for unilateral film pressing, a first cam and a second cam which are arranged on a transmission shaft at intervals are used as transmission components, a transmission swing block and a first transmission wheel are correspondingly arranged above the first cam and the second cam, when the first cam and the second cam of the transmission shaft belt rotate, the first cam and the second cam output rotary power into linear motion in the vertical direction, upward power respectively outputs a value to drive the swing block and the first transmission wheel, wherein the first transmission wheel drives the transmission swing block which is rotatably connected to the side wall of a film pressing support to rotate and swing, the transmission swing block converts the power in the vertical direction into the power in the horizontal linear direction, the upper end of the transmission swing block drives the second transmission wheel to horizontally linearly move through a shifting block structure of an inner groove body, the second transmission wheel drives a second sliding seat which is slidably arranged at the top of the film pressing support to linearly move, and drives a film pressing support block arranged on the second sliding seat to move, The film pressing cylinder and the film pressing sheet move linearly synchronously, so that the power driving of the film pressing sheet in the horizontal direction freedom degree inside and outside the lamination is realized. In addition, the second cam sets up the first slide elevating movement on the press mold support lateral wall through first transmission wheel drive, in order to export this vertical power to the press mold piece, realize the power take off of vertical direction degree of freedom, because the second slide can only maintain the free slip of horizontal direction, at the unable motion of vertical direction, consequently need solve both motion interference at power take off and horizontal power take off in-process that makes progress, the vertical power direct output of first slide promptly is unable drive press mold piece elevating movement for the second slide. In order to solve the interference problem, a transmission bracket is arranged at the top of a first sliding seat, a horizontal strip groove in the same direction as a second sliding motion direction is formed in the transmission bracket, a third driving wheel is embedded in the horizontal strip groove in a sliding manner, a third sliding seat is arranged on the side part of a film pressing support block in a sliding manner along the vertical direction, the third sliding seat is connected with the third driving wheel through a connecting bracket, when the first sliding seat is lifted through the transmission bracket, the third driving wheel is driven to lift through the strip sliding groove, the third driving wheel drives the third sliding seat to lift through the connecting bracket, and the third sliding seat drives a film pressing sheet horizontally connected to the third sliding seat to lift, so that the second sliding seat is prevented from interfering with the motion in the vertical direction on the premise of ensuring the horizontal linear motion; in addition, when the second slide horizontal linear motion, the straight line of third drive wheel in horizontal strip inslot slides to avoided vertical direction to the motion of horizontal direction to interfere, through above transmission structure under the prerequisite of avoiding two vertical direction motion to interfere, realized bilateral press mold with one set of power structure, and accomplished the motion drive of press mold piece in two degrees of freedom directions. In addition, after the lamination film moves to the diaphragm top from the outside top along the arc path through the power transmission, the power of the vertical direction is output to the third slide by the lamination cylinder vertically arranged on the other side wall of the lamination supporting block, so that the third slide is driven to drive the lamination film to press the diaphragm downwards.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic perspective view of the second embodiment of the present invention.

Fig. 3 is a third schematic perspective view of the present invention.

FIG. 4 is a fourth schematic view of the three-dimensional structure of the present invention.

Fig. 5 is a schematic perspective view of the hidden component according to the present invention.

Fig. 6 is a schematic perspective view showing a second embodiment of the hidden member of the present invention.

Fig. 7 is a third schematic perspective view of the hidden component according to the present invention.

Fig. 8 is a perspective view of a lamination platform according to the present invention.

Fig. 9 is a second perspective view of the lamination platform of the present invention.

Fig. 10 is a third schematic perspective view of the lamination platform of the present invention.

Fig. 11 is a schematic perspective view of the driving mechanism of the present invention.

Fig. 12 is a schematic perspective view of the second driving mechanism of the present invention.

Fig. 13 is a third schematic perspective view of the driving mechanism of the present invention.

Fig. 14 is a schematic perspective view of a lamination assembly according to the present invention.

Fig. 15 is a schematic perspective view of a second lamination assembly according to the present invention.

Fig. 16 is a third schematic perspective view of a film pressing assembly according to the present invention.

FIG. 17 is a fourth schematic view of a film pressing assembly according to the present invention.

Detailed Description

The invention will be further described with reference to the accompanying drawings in which:

as shown in fig. 1 to 17, the technical solution adopted by the present invention is as follows: an automatic diaphragm pressing and pole piece pressing assembly lamination carrying device comprises a lamination platform 3 and a driving mechanism 4, wherein the driving mechanism 4 is horizontally arranged at a lamination station, and a platform space is arranged in the driving mechanism 4; the driving mechanism 4 comprises a jacking assembly, a cutting assembly and a film pressing assembly, the jacking assembly is arranged below the platform space, and the cutting assembly and the film pressing assembly comprise two groups which are respectively arranged at the left side and the right side of the platform space; the lamination platform 3 is movably arranged in the platform space, the lamination platform 3 comprises a bearing component and a pressing component, and the bearing component is horizontally arranged; the two pressing assemblies are respectively arranged on the left side and the right side of the bearing assembly and are correspondingly arranged above the cutting assembly; the jacking assembly outputs upward power to the bearing assembly, and the lamination platform 3 is positioned and jacked; the cutting assembly outputs upward power and rotary power to the pressing assembly, and the pressing assembly compresses or releases the pole piece group on the bearing assembly from two sides; the lamination assembly compresses the lamination diaphragm from the outer side and the upper side.

The bearing assembly comprises a platform support 31 and a laminated support plate 35, wherein the platform support 31 is horizontally arranged, two sides of the bottom of the platform support 31 vertically extend downwards and are provided with linear sliding seats 32, and the linear sliding seats 32 are connected to the sliding rails in a sliding manner; the laminated support plate 35 is horizontally arranged above the platform support 31, at least two guide posts 34 are vertically connected to the bottom of the laminated support plate 35, and the guide posts 34 are slidably inserted into the platform support 31.

The pressing assembly comprises two pressing supports 37, two pressing slide seats 38, a spring column 39 and a pressing sheet 310, wherein the two pressing supports 37 are arranged on the side wall of the platform support 31 at intervals, a supporting platform is formed at the upper part of each pressing support 37, and a linear slide rail is vertically arranged on the side wall of each pressing support 37 below the supporting platform; the pressing slide 38 is slidably connected to the linear slide rail, and the top of the pressing slide 38 extends horizontally to form a mounting platform.

The spring column 39 is vertically and slidably inserted on the supporting platform and fixedly inserted in the mounting platform, the upper end and the lower end of the spring column 39 respectively extend to the upper part of the supporting platform and the lower part of the mounting platform, a spring is sleeved on the spring column 39 and arranged between the supporting platform and the mounting platform, and the spring pushes the material pressing slide seat 38 downwards under the downward elasticity; the material pressing sheet 310 is horizontally connected to the top of the spring post 39, and the spring force drives the material pressing slide 38 to drive the spring post 39 to drive the material pressing sheet 310 to press down.

The driving mechanism 4 further comprises a driving support plate 41, the driving support plate 41 is horizontally arranged, unit slide rails 42 are arranged on the left side and the right side of the driving support plate 41 in parallel at intervals, the unit slide rails 42 are butted with external slide rails, and the linear slide 32 is slidably embedded on the unit slide rails 42; the jacking assembly comprises a jacking cylinder 43 and a jacking column 44, wherein the jacking cylinder 43 is arranged at the bottom of the driving support plate 41, and the output end of the jacking cylinder is arranged upwards; the jacking column 44 is vertically connected to the output end of the jacking cylinder 43 and extends upward into the lamination platform 3 through the driving support plate 41 to position and lift the lamination platform 3.

The cutting assembly comprises two cutting motors 45, a transmission cam 46, a cutting seat 47, a cutting spring 48, a cutting transmission wheel 49, a rotating motor 410 and a cutting rod 411, wherein the two cutting motors 45 are arranged at the bottom of the driving support plate, the output direction of the two cutting motors 45 faces the outer side of the driving support plate 41, and the transmission cam 46 is connected to an output shaft of the cutting motors 45; the material cutting seats 47 are correspondingly arranged on the outer side of the material cutting motor 45, vertically penetrate through the driving support plate 41, and freely slide on the driving support plate 41 along the vertical direction.

The cutting rod 411 is vertically connected to the output end of the rotating motor 410 and is driven by the rotating motor 410 to rotate, and the top of the cutting rod 411 is connected with the lamination platform 3; the cutting motor 45 converts the rotary motion into power in the vertical direction through the transmission cam 46 and the cutting transmission wheel 49, and outputs the power to the lamination platform 3 through the cutting rod 411, and the rotary motor 410 outputs the rotary power to the lamination platform 3 through the cutting rod 411.

The film pressing assembly comprises a film pressing support plate 412, a film pressing motor 413, a film pressing support 417, a horizontal transmission component, a lifting transmission component and a film pressing sheet 430, wherein the film pressing support plate 412 is vertically arranged; the film pressing motor 413 is arranged on the side of the film pressing support plate 412; the film pressing support 417 is arranged on the upper part of the film pressing support 412, a transmission shaft 414 is rotatably inserted into the film pressing support 417, and the transmission shaft 414 is connected with an output shaft of the film pressing motor 413 through a transmission belt; the horizontal transmission component, the lifting transmission component and the film pressing sheet 430 comprise two sets which are respectively arranged above two ends of the transmission shaft 414, and the horizontal transmission component and the lifting transmission component are connected with the transmission shaft 414 through cam components; the lamination pressing plate 430 is connected to the horizontal transmission member and the lifting transmission member, the rotation power of the transmission shaft 414 is transmitted to the horizontal transmission member and the lifting transmission member through the cam member, and the horizontal transmission member and the lifting transmission member drive the lamination pressing plate 430 to press or release the diaphragm on the lamination platform from the horizontal direction and the vertical direction.

The cam parts comprise a first cam 415 and a second cam 416, the first cam 415 and the second cam 416 comprise two sets, and the first cam 415 and the second cam 416 are respectively connected to two ends of the transmission shaft 414 at intervals and extend out of the outer parts of the film pressing supports 417.

The horizontal transmission component comprises a transmission swing block 422, a second transmission wheel 423, a second sliding seat 424 and a film pressing support block 425, wherein the transmission swing block 422 is rotatably connected to the side wall of the film pressing support 417, and extends upwards in an inclined manner to form a shifting block structure with an inner concave groove body at the upper end, the lower end of the transmission swing block 422 is a circular block body, and the circular block body is close to the first cam 415; the second slide carriage 424 is slidably connected to a linear slide rail arranged at the top of the lamination holder 417 in the horizontal direction, and the second slide carriage 424 freely slides in the direction close to or far from the lamination platform; the second driving wheel 423 is rotatably connected to a side wall of the second sliding seat 424 and is located in a shifting block inner groove body above the transmission swinging block 422, the first cam 415 pushes the transmission swinging block 422 to rotate through a circular block body, and the transmission swinging block 422 pushes the second driving wheel 423 to drive the second sliding seat 424 to horizontally and linearly slide through a shifting block structure at the upper part; the squeeze film support block 425 is vertically disposed on the second slide 424.

The lifting transmission component comprises a first sliding seat 418, a first transmission wheel 419, a transmission bracket 420, a third sliding seat 427, a third transmission wheel 428 and a connecting bracket 429, wherein the first sliding seat 418 is slidably connected to the side wall of the film laminating support 417 along the vertical direction; the first driving wheel 419 is rotatably connected to a side wall of the first sliding seat 418 and is located above the second cam 416, and the second cam 416 rotates to push the first sliding seat 418 to move up and down through the first driving wheel 419; the transmission bracket 420 is vertically arranged at the top of the first sliding seat 418, and a horizontal strip groove 421 is formed in the middle of the transmission bracket 420; the third slide 427 is slidably connected to a sidewall of the squeeze film support block 425 in a vertical direction; the upper end of the connecting bracket 429 is connected with the side wall of the third sliding seat 427 through a connecting rod, the lower side wall of the connecting bracket 429 is rotatably connected with a third driving wheel 428, and the third driving wheel 428 is embedded into the horizontal groove 421 and freely slides in the horizontal groove 421; the lamination blades 430 are attached to the top of the third slide 427 and extend horizontally toward the lamination stage.

As shown in fig. 8 to 10, which are schematic views of the lamination platform 3 of the present invention, the lamination platform 3 of the present invention includes a platform support 31, a lamination support plate 35 and a pressing assembly, wherein the platform support 31 is horizontally disposed, two sides of the bottom of the platform support 31 vertically extend downward and are provided with a linear slide 32, and the linear slide 32 is slidably connected to a slide rail; the laminated support plate 35 is horizontally arranged above the platform support 31, and the positive plates, the diaphragms and the negative plates are alternately stacked on the laminated support plate 35 until a plate group is formed; at least two guide posts 34 are vertically connected to the bottom of the laminated support plate 35, and the guide posts 34 are slidably inserted into the platform support 31; the pressing assemblies comprise two groups, the two groups of pressing assemblies are respectively arranged on the left side and the right side of the platform support 31, and the pressing assemblies compress the pole piece groups on the lamination support plate 35 from the outer side.

The bottom of the platform support 31 is provided with a through hole 33 which is through up and down; the upper part of the laminated support plate 35 is provided with a vacuum suction plate 36, the surface of the vacuum suction plate 36 is provided with a plurality of vacuum suction holes, and the diaphragm is downwards adsorbed by negative pressure generated by the vacuum suction holes.

The pressing assembly comprises two pressing supports 37, two pressing slide seats 38, a spring column 39 and a pressing sheet 310, wherein the two pressing supports 37 are arranged on the side wall of the platform support 31 at intervals, a supporting platform is formed at the upper part of each pressing support 37, and a linear slide rail is vertically arranged on the side wall of each pressing support 37 below the supporting platform; the pressing slide 38 is slidably connected to the linear slide rail; the spring column 39 is vertically and slidably inserted between the supporting platform and the material pressing slide seat 38, and the spring column 39 is pulled down by the downward elastic force of the spring; the pressing sheet 310 is horizontally connected to the top of the spring pillar 39 and extends above the vacuum suction plate 36, and the pressing sheet presses the vacuum suction plate 36 downward by the downward elastic force of the spring pillar 39 in a natural state.

As shown in fig. 11 to 17, which are schematic diagrams of the driving mechanism 4 of the present invention, the driving mechanism 4 of the present invention includes a driving support plate 41, a jacking assembly, a cutting assembly and a film pressing assembly, wherein the driving support plate 41 is horizontally disposed, unit slide rails 42 are disposed on left and right sides of the driving support plate 41 at intervals in parallel, the unit slide rails 42 are butted with the slide rails, and a linear slide seat at the bottom of the platform support 31 is slidably embedded on the unit slide rails 42; the jacking assembly is arranged below the driving support plate 41 and vertically penetrates through the driving support plate 41 upwards, and outputs upward power to the laminated support plate 35 to drive the laminated support plate 35 to move up and down; the cutting assemblies are respectively arranged at the left side and the right side of the driving support plate 41 and are vertically arranged corresponding to the pressing assemblies, and the cutting assemblies output upward power to the pressing assemblies so that the pressing assemblies move upward to loosen the materials; the film pressing assemblies comprise two groups, wherein the two groups of film pressing assemblies are respectively arranged on the left side and the right side of the driving support plate 41 and are positioned on the outer side of the film pressing driving assembly, and the film pressing assemblies compress the diaphragms on the laminated support plate 35 from the outer side and the upper side.

As shown in fig. 11 to 13, the jacking assembly of the present invention includes a jacking cylinder 43 and a jacking column 44, wherein the jacking cylinder 43 is disposed at the bottom of the driving support plate 41, and the output end of the jacking cylinder is disposed upward; the top column 44 is vertically connected to the output end of the jacking cylinder 43 and drives the support plate 41 to extend upwards; when the lamination platform 3 moves to the lamination station, the jacking columns 44 upwards penetrate through the through holes 33 of the platform supports 31 to upwards jack the lamination support plate 35, and the lamination support plate 35 is upwards jacked to be close to the lamination mechanism 2, so that the lamination mechanism 2 sequentially laminates on the lamination platform 3.

The cutting assembly comprises two cutting motors 45, a transmission cam 46, a cutting seat 47, a cutting spring 48, a cutting transmission wheel 49, a rotating motor 410 and a cutting rod 411, the two cutting motors 45 of the cutting assembly are arranged at the bottom of the driving support plate and are arranged corresponding to the two pressing supports 37 of the lamination platform 3 up and down, the output direction of the two cutting motors is arranged towards the outer side of the driving support plate 41, and the transmission cam 46 is connected to an output shaft of the cutting motors 45 and is driven by the cutting motors 45 to rotate; the material cutting seats 47 of the material cutting assembly comprise two, the material cutting seats 47 are correspondingly arranged on the outer side of the material cutting motor 45, vertically penetrate through the driving support plate 41, and freely slide on the driving support plate 41 along the vertical direction; the rotating motor 410 is arranged at the bottom of the material opening seat 47, and an output shaft penetrates through the material opening seat 47 to extend upwards; the cutting driving wheel 49 is rotatably arranged on the side wall of the rotating motor 410 and is positioned above the driving cam 46, when the cutting motor 45 drives the driving cam 46 to rotate, the driving cam 46 pushes the cutting driving wheel 49 to ascend or descend, and the cutting driving wheel 49 drives the rotating motor 410 and the cutting base 47 to ascend and descend; the material opening rod 411 is vertically connected to the output end of the rotating motor 410 and is driven by the rotating motor 410 to rotate; the top of the blanking rod 411 is connected with the bottom of the spring column 39 of the blanking assembly of the lamination platform 3; when the material opening rod 411 is driven by the rotating motor to rotate, the driving spring column 39 drives the material pressing sheet 310 to rotate; the cutting motor 45 converts the rotation motion into the vertical lifting motion through the transmission cam 46 and the cutting transmission wheel 49, so as to drive the rotation motor 410 and the cutting base 47 to drive the cutting rod 411 to move up and down, the cutting rod 411 pushes up the spring column 39, and the spring column 39 drives the material pressing sheet 310 to move upwards. Therefore, before lamination, the material pressing sheet 310 is jacked upwards and rotates from the upper part of the vacuum suction plate 36 of the lamination platform to the outer side of the vacuum suction plate 36, so that the space above the vacuum suction plate 36 is reserved, and movement interference is avoided when lamination is carried out; after the lamination is completed and a pole piece group is formed on the vacuum suction plate 36, the material pressing piece 310 rotates to the position above the vacuum suction plate 36 from the outer side and descends to press the pole piece group, so that the position stability of each pole piece and a diaphragm in the pole piece group is ensured when the lamination platform 3 conveys the pole piece group. The cutting spring 48 is vertically connected between the cutting seat 47 and the bottom surface of the driving support plate 41, so that the cutting seat 47 and the driving support plate 41 are flexibly connected.

As shown in fig. 14 to 17, the film pressing assembly of the present invention includes a film pressing support plate 412, a film pressing motor 413, a transmission shaft 414, a first cam 415, a second cam 416, a film pressing support 417, a first slide 418, a first transmission wheel 419, a transmission support 420, a transmission swing block 422, a second transmission wheel 423, a second slide 424, a film pressing support block 425, a film pressing cylinder 426, a third slide 427, a third transmission wheel 428, a connecting support 429 and a film pressing sheet 430, wherein the film pressing support plate 412 is vertically disposed on the driving support plate 41 and is located outside the unit slide rail 42; the lamination support 417 is arranged on the lamination support plate 412; the film pressing motor 413 is arranged on one side of the film pressing support plate 412; the transmission shaft 414 is rotatably inserted into the film pressing support 417 and is connected with an output shaft of the film pressing motor 413 through a transmission belt, and the film pressing motor 413 drives the transmission shaft 414 to rotate; the first cam 415 and the second cam 416 comprise two sets, and the first cam 415 and the second cam 416 are respectively connected to two ends of the transmission shaft 414 at intervals and extend out of the film pressing support 417; the first slide 418 is slidably connected to a sidewall of the lamination holder 417 in a vertical direction; the first driving wheel 419 is rotatably connected to a side wall of the first sliding seat 418 and is located above the second cam 416, and the first sliding seat 418 is pushed to move up and down by the first driving wheel 419 when the second cam 416 rotates; the transmission bracket 420 is vertically arranged at the top of the first sliding seat 418, and a horizontal strip groove 421 is formed in the middle of the transmission bracket 420; the transmission swing block 422 is rotatably connected to the side wall of the film pressing support 417 and is positioned in a gap space between the first slide seat 418 and the side wall of the film pressing support 417, the lower end of the transmission swing block 422 is a circular block body, the circular block body is close to the first cam 415, and the circular block body extends upwards in an inclined manner to form a shifting block structure with an inner concave groove body at the upper end; the second slide seat 424 is slidably connected to a linear slide rail arranged on the top of the lamination holder 417 in the horizontal direction, and the lamination holder 417 freely slides in the direction close to or far from the lamination platform 3; the second driving wheel 423 is rotatably connected to a side wall of the second sliding seat 424 and is located in a shifting block inner groove body above the transmission swinging block 422, the first cam 415 pushes the transmission swinging block 422 to rotate through a circular block body when rotating, and the transmission swinging block 422 pushes the second driving wheel 423 to drive the second sliding seat 424 to slide linearly through a shifting block structure at the upper part; the film pressing supporting block 425 is vertically arranged on the second sliding seat 424, the film pressing cylinder 426 is vertically arranged on one side of the film pressing supporting block 425, the output end of the film pressing cylinder is upwards arranged, the third sliding seat 427 is slidably connected to the other side wall of the film pressing supporting block 425 along the vertical direction and is connected with the output end of the film pressing cylinder 426, and the film pressing cylinder 426 drives the third sliding seat 427 to move up and down; the upper end of the connecting bracket 429 is connected with the side wall of the third sliding seat 427 through a connecting rod, the lower side wall of the connecting bracket 429 is rotatably connected with a third driving wheel 428, and the third driving wheel 428 is embedded into the horizontal groove 421 and freely slides in the horizontal groove 421; the lamination blades 430 are attached to the top of the third slide 427 and extend horizontally toward the lamination stage 3. When the first cam 415 and the second cam 416 synchronously rotate, the first cam 415 drives the second slide seat 424 through the transmission swing block 422 to drive the film pressing support block 425, the film pressing air cylinder 426, the third slide seat 427, the third transmission wheel 428, the connecting bracket 429 and the film pressing sheet 430 to integrally and linearly move so as to be close to or far from the lamination platform 3; meanwhile, the third driving wheel 428 slides in the horizontal bar slot 421, so as to avoid the interference of movement with the driving bracket 420. Synchronously, the second cam 416 drives the first slide seat 418 and the transmission bracket 420 to integrally move up and down through the first transmission wheel 419, the vertical driving force is transmitted to the third transmission wheel 428 through the horizontal strip groove 421 in the transmission bracket 420, and the vertical driving force is transmitted to the third slide seat 427 through the third transmission wheel 428, so that the third slide seat 427 drives the film pressing sheet 430 to move up and down. The structure synchronously realizes the synchronous movement of the film pressing sheet 430 in the vertical direction and the horizontal direction through one power mechanism output by the film pressing motor 413, and simultaneously avoids the movement interference when the film pressing sheet moves in two directions which are perpendicular to each other.

Furthermore, the invention designs an automatic diaphragm pressing and pole piece group lamination carrying device which can realize automatic bearing of the lamination and carrying of the pole piece group, effectively reduces the waiting time, excellently improves the whole line productivity, has the function of self-pressing, ensures the stability of the carrying position of the pole piece group, has the functions of automatic jacking, cutting and rotary interference avoidance, effectively ensures the automatic connection of the lamination and the carrying of the pole piece group, realizes automatic film pressing and interference avoidance of the lamination and the pole piece lamination through film pressing in two freedom directions on the outer side and the upper side, and effectively ensures the automatic connection of the film pressing and the lamination.

The embodiments of the present invention are merely illustrative of specific embodiments thereof, and are not intended to limit the scope thereof. Since the present invention can be modified by a person skilled in the art, the present invention is not limited to the embodiments described above.

Claims

1. The utility model provides an automatic press diaphragm and press pole piece group lamination carrying device which characterized in that: the lamination stacking machine comprises a lamination platform (3) and a driving mechanism (4), wherein the driving mechanism (4) is horizontally arranged at a lamination station, and a platform space is arranged in the driving mechanism; the driving mechanism (4) comprises a jacking assembly, a cutting assembly and a film pressing assembly, the jacking assembly is arranged below the platform space, and the cutting assembly and the film pressing assembly comprise two groups which are respectively arranged at the left side and the right side of the platform space; the lamination platform (3) is movably arranged in the platform space, the lamination platform (3) comprises a bearing component and a pressing component, and the bearing component is horizontally arranged; the two pressing assemblies are respectively arranged on the left side and the right side of the bearing assembly and are correspondingly arranged above the cutting assembly; the jacking assembly outputs upward power to the bearing assembly, and the lamination platform (3) is positioned and jacked; the cutting assembly outputs upward power and rotary power to the pressing assembly, and the pressing assembly compresses or releases the pole piece group on the bearing assembly from two sides; the lamination assembly compresses the lamination diaphragm from the outer side and the upper side.

2. The apparatus of claim 1, wherein the apparatus further comprises a pressure roller for pressing the membrane against the pressure roller, the pressure roller comprising: the bearing assembly comprises a platform support (31) and a laminated support plate (35), wherein the platform support (31) is horizontally arranged, two sides of the bottom of the platform support (31) vertically extend downwards and are provided with linear sliding seats (32), and the linear sliding seats (32) are connected to the sliding rails in a sliding manner; the lamination support plate (35) is horizontally arranged above the platform support (31), the bottom of the lamination support plate (35) is vertically connected with at least two guide posts (34), and the guide posts (34) can be slidably inserted into the platform support (31).

3. The apparatus of claim 2, wherein the apparatus further comprises a pressure roller for pressing the membrane against the pole piece stack: the pressing assembly comprises two pressing supports (37), a pressing sliding seat (38), a spring column (39) and a pressing sheet (310), wherein the two pressing supports (37) are arranged on the side wall of the platform support (31) at intervals, a supporting platform is formed at the upper part of each pressing support (37), and a linear sliding rail is vertically arranged on the side wall of each pressing support (37) below the supporting platform; the pressing sliding seat (38) is connected to the linear sliding rail in a sliding mode, and the top of the pressing sliding seat (38) extends horizontally to form an installation platform.

4. The apparatus of claim 3, wherein the apparatus further comprises a pressure roller for pressing the membrane against the pole piece stack: the spring column (39) is vertically and slidably inserted on the supporting platform and fixedly inserted in the mounting platform, the upper end and the lower end of the spring column (39) respectively extend to the upper part of the supporting platform and the lower part of the mounting platform, a spring is sleeved on the spring column (39), the spring is arranged between the supporting platform and the mounting platform, and the spring pushes the material pressing sliding seat (38) downwards under the downward elasticity; the material pressing sheet (310) is horizontally connected to the top of the spring column (39), and the spring elasticity drives the material pressing slide seat (38) to drive the spring column (39) to drive the material pressing sheet (310) to press downwards.

5. The apparatus of claim 1, wherein the apparatus further comprises a pressure roller for pressing the membrane against the pressure roller, the pressure roller comprising: the driving mechanism (4) further comprises a driving support plate (41), the driving support plate (41) is horizontally arranged, unit slide rails (42) are arranged on the left side and the right side of the driving support plate (41) in parallel at intervals, the unit slide rails (42) are butted with external slide rails, and the linear slide base (32) is slidably embedded on the unit slide rails (42); the jacking assembly comprises a jacking cylinder (43) and a jacking column (44), the jacking cylinder (43) is arranged at the bottom of the driving support plate (41), and the output end of the jacking cylinder is arranged upwards; the jacking column (44) is vertically connected to the output end of the jacking cylinder (43), penetrates through the driving support plate (41) and extends upwards into the lamination platform (3) to position and lift the lamination platform (3).

6. The apparatus of claim 5, wherein the apparatus further comprises a pressure roller for pressing the membrane against the pole piece stack: the cutting assembly comprises two cutting motors (45), a transmission cam (46), a cutting seat (47), a cutting spring (48), a cutting transmission wheel (49), a rotating motor (410) and a cutting rod (411), wherein the two cutting motors (45) are arranged at the bottom of the driving support plate, the output direction of the two cutting motors is towards the outer side of the driving support plate (41), and the transmission cam (46) is connected to an output shaft of the cutting motors (45); the two material opening seats (47) are correspondingly arranged on the outer side of the material opening motor (45), vertically penetrate through the driving support plate (41), and freely slide on the driving support plate (41) along the vertical direction.

7. The apparatus of claim 6, wherein the apparatus further comprises a pressure roller for pressing the membrane against the pressure roller, the pressure roller comprising: the opening rod (411) is vertically connected to the output end of the rotating motor (410) and is driven by the rotating motor (410) to rotate, and the top of the opening rod (411) is connected with the lamination platform (3); the cutting motor (45) converts the rotary motion into power in the vertical direction through the transmission cam (46) and the cutting transmission wheel (49), the power is output to the lamination platform (3) through the cutting rod (411), and the rotary motor (410) outputs the rotary power to the lamination platform (3) through the cutting rod (411).

8. The apparatus of claim 5, wherein the apparatus further comprises a pressure roller for pressing the membrane against the pole piece stack: the film pressing assembly comprises a film pressing support plate (412), a film pressing motor (413), a film pressing support (417), a horizontal transmission component, a lifting transmission component and a film pressing sheet (430), wherein the film pressing support plate (412) is vertically arranged; the film pressing motor (413) is arranged on the side part of the film pressing support plate (412); the film pressing support (417) is arranged at the upper part of the film pressing support plate (412), a transmission shaft (414) is rotatably inserted in the film pressing support (417), and the transmission shaft (414) is connected with an output shaft of the film pressing motor (413) through a transmission belt; the horizontal transmission component, the lifting transmission component and the film pressing sheet (430) comprise two sets which are respectively arranged above two ends of the transmission shaft (414), and the horizontal transmission component and the lifting transmission component are connected with the transmission shaft (414) through cam components; the film pressing sheets (430) are connected with the horizontal transmission component and the lifting transmission component, the rotating power of the transmission shaft (414) is transmitted to the horizontal transmission component and the lifting transmission component through the cam component, and the horizontal transmission component and the lifting transmission component drive the film pressing sheets (430) to press or release the diaphragms on the lamination platform from the horizontal direction and the vertical direction.

9. The apparatus of claim 8, wherein the apparatus further comprises a motor for driving the diaphragm and the pole piece stack, the motor comprising: the cam component comprises a first cam (415) and a second cam (416), the first cam (415) and the second cam (416) comprise two sets, and the first cam (415) and the second cam (416) are respectively connected to two ends of the transmission shaft (414) at intervals and extend out of the outer part of the film pressing support (417).

10. The apparatus of claim 9, wherein the apparatus further comprises: the horizontal transmission component comprises a transmission swinging block (422), a second transmission wheel (423), a second sliding seat (424) and a film pressing support block (425), wherein the transmission swinging block (422) is rotatably connected to the side wall of the film pressing support (417), and extends upwards in an inclined manner to form a shifting block structure with an inner concave groove body at the upper end, the lower end of the transmission swinging block (422) is a circular block body, and the circular block body is close to the first cam (415); the second sliding seat (424) is connected to a linear sliding rail arranged at the top of the film pressing support (417) in a sliding manner along the horizontal direction, and the second sliding seat (424) freely slides along the direction close to or far away from the lamination platform; the second driving wheel (423) is rotatably connected to the side wall of the second sliding seat (424) and is positioned in a shifting block inner groove body above the transmission swinging block (422), the first cam (415) pushes the transmission swinging block (422) to rotate through a circular block body, and the transmission swinging block (422) pushes the second driving wheel (423) to drive the second sliding seat (424) to horizontally and linearly slide through a shifting block structure at the upper part; the film pressing supporting block (425) is vertically arranged on the second sliding seat (424).

11. The apparatus of claim 10, wherein the apparatus further comprises: the lifting transmission component comprises a first sliding seat (418), a first transmission wheel (419), a transmission bracket (420), a third sliding seat (427), a third transmission wheel (428) and a connecting bracket (429), wherein the first sliding seat (418) is connected to the side wall of the film pressing support (417) in a sliding manner along the vertical direction; the first driving wheel (419) is rotatably connected to the side wall of the first sliding seat (418) and is positioned above the second cam (416), and the second cam (416) rotates to push the first sliding seat (418) to move up and down through the first driving wheel (419); the transmission bracket (420) is vertically arranged at the top of the first sliding seat (418), and a horizontal strip groove (421) is formed in the middle of the transmission bracket (420); the third sliding seat (427) is connected on one side wall of the film pressing support block (425) in a sliding way along the vertical direction; the upper end of the connecting bracket (429) is connected with the side wall of the third sliding seat (427) through a connecting rod, the lower side wall of the connecting bracket (429) is rotatably connected with a third driving wheel (428), and the third driving wheel (428) is embedded into the horizontal groove (421) and freely slides in the horizontal groove (421); the lamination blades (430) are attached to the top of the third slide (427) and extend horizontally toward the lamination stage.