CN109216775B - Lamination device and lamination machine - Google Patents
Lamination device and lamination machine Download PDFInfo
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- CN109216775B CN109216775B CN201811116105.8A CN201811116105A CN109216775B CN 109216775 B CN109216775 B CN 109216775B CN 201811116105 A CN201811116105 A CN 201811116105A CN 109216775 B CN109216775 B CN 109216775B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0583—Construction or manufacture of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with "Z"-shaped electrodes or separators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
Abstract
本发明是一种叠片装置及叠片机，涉及电池制造装备技术领域，为解决现有叠片机无法满足多种型号电芯的叠片操作的问题而设计。该叠片装置包括叠片台、压料机构、水平移动机构和竖直移动机构；压料机构包括位于叠片台左右两侧的压料组件，水平移动机构与各压料组件螺旋传动连接，用于驱动两侧的压料组件相向运动以靠近叠片台或相背运动以远离叠片台；竖直移动机构的动力输出端与水平移动机构连接，用于驱动水平移动机构升降以带动压料组件升降，从而将叠片台上的电芯压紧，压料机构沿前后方向间隔设置有多组。该叠片机包括上述叠片装置。本发明提供的叠片装置及叠片机满足了多种型号电芯的叠片需求，通用化程度大大提高。
The present invention is a stacking device and a stacking machine, which relates to the technical field of battery manufacturing equipment, and is designed to solve the problem that the existing stacking machine cannot meet the stacking operation of various types of battery cells. The stacking device includes a stacking table, a pressing mechanism, a horizontal moving mechanism and a vertical moving mechanism; the pressing mechanism includes pressing assemblies located on the left and right sides of the stacking table, and the horizontal moving mechanism is connected to each pressing assembly with a spiral transmission, which is used to drive the pressing assemblies on both sides to move toward each other to approach the stacking table or move away from the stacking table; the power output end of the vertical moving mechanism is connected to the horizontal moving mechanism, which is used to drive the horizontal moving mechanism to rise and fall to drive the pressing assembly to rise and fall, thereby pressing the battery cells on the stacking table, and the pressing mechanism is arranged in multiple groups at intervals along the front and rear directions. The stacking machine includes the above-mentioned stacking device. The stacking device and stacking machine provided by the present invention meet the stacking requirements of various types of battery cells, and the degree of commonality is greatly improved.
Description
Technical Field
The invention relates to the technical field of battery manufacturing equipment, in particular to a lamination device and a lamination machine.
Background
The lithium battery lamination technology is a lithium battery manufacturing technology which uses a diaphragm to isolate positive and negative plates and sequentially superimposes the positive and negative plates to form a battery core. The Z-shaped lamination is an important lamination mode in a lithium battery, and the basic principle and the working process of the Z-shaped lamination are that a diaphragm wound on the Z-shaped lamination are discharged by utilizing an unreeling mechanism, the diaphragm is folded into a Z shape by the reciprocating movement of a lamination table, meanwhile, positive and negative plates are alternately placed between the folded diaphragms by utilizing a mechanical arm, the positive and negative plates are separated by the diaphragm, and the process is repeated for a plurality of times, so that a lithium battery cell with a certain thickness is finally formed.
In order to improve the stability of the battery cells in the lamination process, a material pressing mechanism is further arranged on the lamination table, and the semi-finished battery cells folded on the lamination table are pressed by the material pressing mechanism, so that the semi-finished battery cells which are folded are prevented from being scattered and the diaphragm, the positive electrode plate and the negative electrode plate are prevented from being shifted when tension changes due to the fact that the folded semi-finished battery cells have no fixing force, and the reliability of lamination is guaranteed. However, the pressing mechanism in the prior art has the advantages of less stroke, narrow application range and poor compatibility, can not meet the pressing operation of the battery cells of different types, and has low speed, so that the lamination efficiency of the battery cells of the lithium battery is greatly reduced.
Disclosure of Invention
The first object of the present invention is to provide a lamination device, which solves the technical problem that the existing battery cell lamination mechanism has a small stroke and cannot meet the lamination operation of battery cells of various types.
The invention provides a lamination device which comprises a lamination table, a material pressing mechanism, a horizontal moving mechanism and a vertical moving mechanism.
The material pressing mechanism comprises material pressing components located on the left side and the right side of the lamination table, the horizontal moving mechanism comprises a moving seat, a first shaft section, a second shaft section and a driving component, the first shaft section and the second shaft section are pivoted to the moving seat, the driving component is used for driving the first shaft section and the second shaft section to rotate, the first shaft section and the second shaft section extend along the horizontal direction and are provided with threads, and each material pressing component is connected with the first shaft section and the second shaft section in a threaded mode, and is connected with the moving seat in a sliding mode so as to move oppositely or move oppositely.
The power output end of the vertical moving mechanism is connected with the moving seat and is used for driving the moving seat to lift so as to drive the material pressing assembly to lift, so that the battery cell on the lamination table is pressed.
The pressing mechanisms are arranged in a plurality of groups at intervals along the front-rear direction, the number of the horizontal moving mechanisms is the same as that of the pressing mechanisms and used for driving each group of the pressing mechanisms to move in the horizontal direction, and the number of the vertical moving mechanisms is the same as that of the pressing mechanisms and used for driving each group of the pressing mechanisms to move in the vertical direction.
Further, the horizontal moving mechanism comprises a first screw rod pivoted to the moving seat, the first screw rod extends along the horizontal direction, threads with opposite rotation directions are arranged at two ends of the first screw rod, two sections of the first screw rod with the threads with opposite rotation directions respectively form the first shaft section and the second shaft section, and the driving part comprises a first driving piece in transmission connection with the first screw rod.
The horizontal moving mechanism further comprises a first transmission part fixedly connected with the pressing assembly, and the first transmission part is in threaded connection with the first screw rod and is in sliding connection with the moving seat.
Further, the horizontal moving mechanism further comprises a first sliding rail arranged on the moving seat, the first sliding rail is spaced from the first screw rod and extends along the horizontal direction, and the first transmission piece is connected with the first sliding rail in a sliding mode.
Further, the first shaft section and the second shaft section are in the same screw thread rotation direction, and the driving component drives the first shaft section and the second shaft section to rotate in opposite directions.
Further, the material pressing assembly comprises a tool rest, a material pressing cylinder arranged on the tool rest and a pressing tool fixedly connected to the output end of the material pressing cylinder, wherein the material pressing assembly obtains power input of horizontal opposite or opposite movement through the tool rest, and the pressing tool is used for being in contact with the battery cell on the lamination table to press the battery cell.
Further, the material pressing end of the pressing knife is sheet-shaped and is provided with a round corner for preventing the battery core from being scratched.
Further, the lamination table also comprises a mounting seat, and the lamination table is mounted on the mounting seat.
Further, the vertical moving mechanism comprises a second driving piece and a second screw rod, wherein the second driving piece and the second screw rod are arranged on the mounting seat, the second screw rod extends along the vertical direction, and the second driving piece is in transmission connection with the second screw rod.
The movable seat is connected with the mounting seat in a sliding manner, the vertical moving mechanism further comprises a second transmission piece fixedly connected to the movable seat, and the second transmission piece is connected with the second screw rod in a threaded manner.
Further, the vertical moving mechanism further comprises a second sliding rail arranged on the mounting seat, the second sliding rail is spaced from the second screw rod and extends along the vertical direction, and the moving seat is slidably connected with the second sliding rail.
Further, the lamination table lifting device further comprises a lifting mechanism for lifting the lamination table, and the lifting mechanism is mounted on the mounting seat.
Further, the pressing mechanisms are two groups.
The lamination device has the beneficial effects that:
When the lamination device works, in each group of lamination mechanisms, the first shaft section and the second shaft section rotate under the drive of the driving part in the horizontal moving mechanism, under the spiral transmission of the first shaft section/the second shaft section and the lamination assemblies and the sliding limiting effect of the moving seat on the lamination assemblies, the rotation motion of the first shaft section and the second shaft section is converted into the linear feeding motion of the lamination assemblies on two sides, so that the lamination assemblies on two sides of the lamination table move back to back, the lamination ends of the lamination assemblies are moved away from the electric core, the position avoidance of the lamination assemblies relative to the electric core is realized, then the vertical moving mechanism is utilized to enable the lamination assemblies to rise a certain distance, the lamination assemblies are positioned above the electric core, then the driving part in the horizontal moving mechanism is utilized again, the first shaft section and the second shaft section are driven to rotate in the directions opposite to the respective rotation directions, so that the lamination assemblies on two sides move in opposite directions until the lamination assemblies can be lowered down, and then the lamination assemblies on the lamination table can be pressed down, and finally the lamination table is pressed by the vertical moving mechanism again.
After spreading a new layer of diaphragm, putting a pole piece, loosening the battery core by another group of pressing mechanisms which are arranged opposite to the pressing mechanisms in the front-back direction, and compacting the battery core at the side after the same action flow as the action flow of the pressing mechanisms; and then, the diaphragm continues to spread, the pole piece continues to be put in, and the material pressing mechanism on the other side continues to press the corresponding side of the battery cell according to the action flow. The above actions are repeated continuously, and the material pressing operation in the process of lamination of the battery cell is realized in the process of multiple folding of the diaphragm and multiple placement of the positive electrode plate and the negative electrode plate. The pressing mechanisms pressed on the battery cells each time can be one group or multiple groups.
In this lamination device, utilize horizontal migration mechanism's spiral drive effect, realized the straight line of lamination platform both sides pressure material subassembly and fed, not only the stroke is controllable, and the stroke of feeding is longer to enlarged this lamination device's application scope, made it can satisfy the lamination demand of multiple model electricity core, the universalization degree improves greatly, has reduced the lamination cost of electricity core to a certain extent.
The invention provides a lamination machine, which aims to solve the technical problem that the existing lamination machine cannot meet the lamination operation of multiple types of battery cells.
The lamination machine provided by the invention comprises the lamination device.
The lamination machine has the beneficial effects that:
by arranging the lamination device in the lamination machine, the lamination machine has all advantages of the lamination device, and accordingly, the lamination device is not described in detail herein.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will briefly explain the drawings needed in the embodiments or the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic front view of a lamination device according to an embodiment of the present invention;
Fig. 2 is a schematic front view of a lamination device according to an embodiment of the present invention when a lamination table and a lifting mechanism are not shown;
Fig. 3 is a schematic top view of a lamination device according to an embodiment of the present invention when a lamination table and a lifting mechanism are not shown;
FIG. 4 is an enlarged view of a portion of FIG. 1 at A;
Fig. 5 is a schematic diagram of a movement path of a pressing knife and a battery cell when a lamination device provided by an embodiment of the invention is laminated once.
Reference numerals:
100-lamination table, 200-material pressing component, 300-horizontal moving mechanism, 400-vertical moving mechanism, 500-lifting mechanism, 600-mounting seat and 700-battery cell;
210-pressing knife, 220-knife rest and 230-pressing cylinder;
310-a first slide rail, 320-a first driving piece, 330-a first screw rod, 340-a first transmission piece, 350-a movable seat and 360-a first transmission component;
331-a first shaft section, 332-a second shaft section;
410-second slide rail, 420-second driving piece, 430-second screw rod, 440-second driving piece, 450-mounting plate and 460-second driving component;
510-lifting screw nut, 520-lifting screw rod, 530-sleeve, 540-bearing seat, 550-guide rail and 560-supporting frame;
710-diaphragm, 720-pole piece;
S1, a first rising distance of a pressing cutter;
S2, the second rising distance of the pressing knife;
H-lamination stage is lowered by a distance each time.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "horizontal", "vertical", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, unless explicitly stated or limited otherwise, the terms "connected," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intermediate medium, or in communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Fig. 1 is a schematic front view of a lamination device according to the present embodiment, fig. 2 is a schematic front view of the lamination device according to the present embodiment when the lamination table 100 and the lifting mechanism 500 are not shown, and fig. 3 is a schematic top view of the lamination device according to the present embodiment when the lamination table 100 and the lifting mechanism 500 are not shown. As shown in fig. 1 to 3, the present embodiment provides a lamination apparatus including a lamination stage 100, a pressing mechanism, a horizontal movement mechanism 300, and a vertical movement mechanism 400. Wherein lamination station 100 is mounted to mount 600.
Specifically, referring to fig. 1 to 3, the pressing mechanism includes pressing assemblies 200 located at the left and right sides of the lamination table 100, the horizontal moving mechanism 300 includes a moving seat 350, a first shaft section 331 and a second shaft section 332 both pivotally connected to the moving seat 350, and a driving component for driving the first shaft section 331 and the second shaft section 332 to rotate, wherein the first shaft section 331 and the second shaft section 332 both extend along a horizontal direction and are provided with threads, and each pressing assembly 200 is respectively in threaded connection with the first shaft section 331 and the second shaft section 332 and is slidably connected with the moving seat 350 so as to move in opposite directions or move in opposite directions under the driving of the driving component.
With continued reference to fig. 1 to 3, the power output end of the vertical moving mechanism 400 is connected to the moving seat 350, and is used for driving the moving seat 350 to lift so as to drive the pressing assembly 200 to lift, thereby pressing the battery cells 700 on the lamination table 100. The pressing mechanisms are two groups, and specifically, the two groups of pressing mechanisms are arranged at intervals along the front-back direction. The number of the horizontal moving mechanisms 300 is the same as that of the pressing mechanisms for respectively driving each group of the pressing mechanisms to move in the horizontal direction, and the number of the vertical moving mechanisms 400 is also the same as that of the pressing mechanisms for respectively driving each group of the pressing mechanisms to move in the vertical direction.
When the lamination device works, in a group of lamination mechanisms, under the drive of a driving component in the horizontal moving mechanism 300, the first shaft section 331 and the second shaft section 332 rotate, under the spiral transmission of the first shaft section 331/the second shaft section 332 and the lamination assemblies 200 and the sliding limiting effect of the moving seat 350 on the lamination assemblies 200, the rotation motion of the first shaft section 331 and the second shaft section 332 is converted into the linear feeding motion of the lamination assemblies 200 at two sides, so that the lamination assemblies 200 at two sides of the lamination table 100 move oppositely, the lamination ends of the lamination assemblies 200 are moved away from the battery cores 700, the position avoiding relative to the battery cores 700 is realized, then the vertical moving mechanism 400 is utilized to enable the lamination assemblies 200 to rise a certain distance, the lamination assemblies 200 are located above the battery cores 700, then the driving component in the horizontal moving mechanism 300 is utilized again to drive the first shaft section 331 and the second shaft section 332 to rotate along the direction opposite to the rotation direction respectively, so that the lamination assemblies 200 at two sides move oppositely until the lamination table 100 can be lowered, and finally the lamination table 100 can be pressed down by the vertical moving mechanism 400, and finally the lamination table 700 is pressed down, and the lamination table 700 is pressed.
After the membrane 710 spreads a new layer, the pole piece 720 is put in, and another group of pressing mechanisms which are arranged opposite to the pressing mechanisms in the front-back direction loosen the battery core 700, the battery core at the side is pressed after the same action flow as the action flow of the pressing mechanisms, then, the membrane 710 continues to spread, the pole piece 720 continues to be put in, the pressing mechanism at the other side continues to press the corresponding side of the battery core 700 according to the action flow, the actions are repeated continuously, and the pressing operation on the battery core 700 in the lamination process is realized in the processes of multiple folding of the membrane 710 and multiple putting of the pole piece 720.
In the lamination device, the linear feeding of the material pressing assemblies 200 at the two sides of the lamination table 100 is realized by utilizing the spiral transmission effect of the horizontal moving mechanism 300, the feeding stroke is controllable, and the feeding stroke is long, so that the application range of the lamination device is enlarged, the lamination requirements of multiple types of battery cells 700 can be met, the universalization degree is greatly improved, and the lamination cost of finished battery cells is reduced to a certain extent.
In this embodiment, the "horizontal direction" refers to the moving direction of each pressing assembly 200 in each group of pressing mechanisms in the horizontal plane, including the direction of the opposite movement of the pressing assemblies 200 and the direction of the opposite movement, and the "front-back direction" refers to the direction perpendicular to the moving direction of the pressing assemblies 200 in the horizontal plane, that is, the direction indicated by the mn arrow in fig. 3. Also, the "left and right sides of the lamination table 100" refer to both sides of the lamination table 100 in the moving direction of the nip assembly 200.
It should be further noted that, when the number of the pressing mechanisms is greater than two, the number of the pressing mechanisms pressed on the battery core at each time may be more than two. By the arrangement, the part, close to the middle part of the battery cell 700, of the battery cell 700 is simultaneously compressed in the lamination process, and the battery cell 700 is prevented from being loose due to failure of a group of material pressing mechanisms in a double compression mode, so that the working reliability of the lamination device of the embodiment is ensured.
With continued reference to fig. 1, in this embodiment, the lamination device may further include a mounting base 600, where the lamination stage 100 is mounted on the mounting base 600. By the arrangement, reliable installation of the lamination table 100 is realized, a stable working environment is provided for lamination of the battery cell 700, and reliability of lamination is ensured. Moreover, the arrangement realizes the modularization of the lamination device of the embodiment, and is convenient for the assembly and the fixation of the lamination device in a lamination machine.
Referring to fig. 1 to 3, in the present embodiment, the pressing assembly 200 includes a tool holder 220, a pressing cylinder 230 mounted on the tool holder 220, and a pressing tool 210 fixedly connected to an output end of the pressing cylinder 230, wherein the pressing assembly 200 is screwed to the first shaft section 331/the second shaft section 332 by the tool holder 220, and is slidably connected to the moving seat 350 by the tool holder 220, and the pressing tool 210 is used for contacting with the electrical core 700 on the lamination table 100 to press the electrical core.
When the pressing operation is required, under the action of the vertical moving mechanism 400, the moving seat 350 is driven to drive the tool rest 220 to move downwards, so that the contact between the pressing tool 210 and the battery cell 700 on the lamination table 100 is realized. The pressing cylinder 230 works and always outputs a constant pulling force to the pressing blade 210, so that the pressing blade 210 applies a constant pressing force to the battery cell 700 to complete the pressing action of the battery cell 700.
Specifically, in this embodiment, the pressing cylinder 230 may be a sliding table cylinder.
Through setting up pressure material cylinder 230 for pressure sword 210 at every turn all can apply invariable pressure to electric core 700, moreover, adopt the slip table cylinder as pressure material cylinder 230 in order to apply the setting form of pressure to electric core 700, utilize the vertical guide effect of slip table, still guaranteed by pressure material cylinder 230 to the pulling force that pressure sword 210 provided can be all the time along vertical direction and can not produce and rock, guaranteed the uniformity behind the electric core 700 lamination, thereby improved the uniformity of lithium cell finished product to a certain extent. Moreover, the material pressing structure has higher pressing reliability, thereby ensuring smooth lamination operation.
It should be noted that, in the present embodiment, the pressing assembly 200 may be in the form of applying pressure to the battery cell 700 through the pressing cylinder 230, but not limited thereto, and may also be in other arrangements, such as a tension spring between the tool rest 220 and the pressing tool 210. When the pressing blade 210 contacts with the battery cell 700 on the lamination table 100, the tension spring is in a stretched state, and the battery cell 700 on the lamination table 100 is pressed under the elastic restoring force. So long as the lamination assembly 200 is arranged in such a manner that the lamination operation of the battery cells 700 on the lamination table 100 can be realized.
Referring to fig. 1 to 3, in the present embodiment, the pressing end of the pressing blade 210 is sheet-shaped and is provided with a rounded corner for preventing the battery cell 700 from being scratched.
By arranging the pressing blade 210 in a sheet shape, the contact area between the pressing blade 210 and the battery cell 700 is increased, and the local tilting of the battery cell 700 is prevented, thereby improving the lamination effect. In addition, when the diaphragm 710 is folded again, the arrangement of the sheet-shaped pressing knife 210 reduces the height difference between the pole pieces 720 and the diaphragm 710, thereby reducing the overlong situation of the folded diaphragm 710 caused by the height of the pressing knife 210, avoiding the waste of the diaphragm 710 material, ensuring the flatness of the battery cell 700 between two adjacent pole pieces 720 after lamination, and further improving the lamination effect.
In addition, by setting the material pressing end of the pressing knife 210 to be in a round corner form, the damage to the diaphragm 710 or the pole piece 720 caused in the extraction process of the pressing knife 210 is prevented, and the resistance in the extraction process of the pressing knife 210 is reduced, so that the pressing knife 210 can be conveniently and rapidly extracted, and the working efficiency of the lamination device of the embodiment is improved to a certain extent.
Referring to fig. 1 to 3, in the present embodiment, the horizontal moving mechanism 300 may include a first screw rod 330 pivotally connected to the moving seat 350, the first screw rod 330 extends along a horizontal direction, and two opposite screw threads are disposed at two ends of the first screw rod 330, wherein two sections of the first screw rod 330 having opposite screw threads respectively form a first shaft section 331 and a second shaft section 332. The drive means comprises a first drive member 320 in driving connection with a first screw 330. The horizontal moving mechanism 300 further includes a first transmission member 340 fixedly connected to the tool holders 220, wherein the first transmission member 340 connected to each tool holder 220 is respectively screwed to two ends of the first screw rod 330 and slidably connected to the moving seat 350.
When the first driving member 320 drives the first screw rod 330 to rotate, under the action of the spiral transmission between the first driving member 340 and the first screw rod 330 and the sliding limit of the moving seat 350 on the first driving member 340, the spiral transmission between the first driving member 340 and the first screw rod 330 is converted into the linear feeding motion of the first driving member 340, so that the tool holders 220 disposed at two ends of the first screw rod 330 move towards or away from each other at the same time, so as to achieve the simultaneous approaching or separating of the two relative to the lamination table 100.
By the arrangement, the purpose that one driving piece drives the two pressing assemblies 200 to move simultaneously is achieved, and the setting cost of the horizontal moving mechanism 300 is reduced. Moreover, the transmission mode is stable in transmission, adverse effects on the lamination process are reduced, and the working reliability of the lamination device of the embodiment is further improved.
Referring to fig. 1 and 2, in the present embodiment, the horizontal moving mechanism 300 may further include a first sliding rail 310 disposed on the moving seat 350, specifically, the first sliding rail 310 is spaced from the first screw 330 and extends along a horizontal direction, and the first transmission member 340 is slidably connected to the first sliding rail 310.
When the first driving member 320 drives the pressing assemblies 200 at two sides to move in opposite directions or opposite directions, the first driving member 340 slides on the first sliding rail 310.
By providing the first slide rail 310, a sliding connection of the first transmission member 340 with respect to the movable seat 350 is achieved, thereby achieving a horizontal movement of the tool post 220. In addition, the first sliding rail 310 is simple in structure, easy to implement and low in cost.
With continued reference to fig. 1 and 2, in the present embodiment, the horizontal moving mechanism 300 may further include a first transmission assembly 360, where the first driving member 320 is in transmission connection with the first screw rod 330 through the first transmission assembly 360.
The arrangement of the first transmission assembly 360 realizes the power transmission from the first driving piece 320 to the first screw rod 330, and not only meets the installation requirements of various positions of the first driving piece 320, so that the lamination device of the embodiment has a more compact structure and saves the occupied area. Moreover, by selecting the first transmission assembly 360, the purpose of reducing speed and increasing torque can be achieved, so as to ensure reliable driving of the first screw rod 330.
Specifically, in the present embodiment, the first driving member 320 may be a servo motor, and the first transmission assembly 360 may be a belt transmission assembly. The belt transmission assembly comprises a driving wheel fixedly connected with an output shaft of the servo motor, a driven wheel fixedly sleeved on the first screw rod 330 and a transmission belt sleeved on the driving wheel and the driven wheel. When the output shaft of the servo motor rotates, the driving wheel is driven to rotate, power is output to the driven wheel through the transmission belt, and finally the first screw rod 330 is driven.
The belt drive assembly is utilized for power transmission, so that the structure is simple, the assembly is easy, and lubrication is almost not needed, thereby reducing pollution of the lubricant to the diaphragm 710 and the pole piece 720.
It should be noted that, in the present embodiment, the first shaft section 331 and the second shaft section 332 in the horizontal moving mechanism 300 may be in the form of threads with opposite rotation directions provided at two ends of one first screw rod 330, but not limited thereto, and other arrangements may be adopted, for example, the first shaft section 331 and the second shaft section 332 are two independent shaft sections with the same rotation direction, and the driving component drives the first shaft section 331 and the second shaft section 332 to rotate in opposite directions, so as to realize the opposite movement or the opposite movement of the pressing assemblies 200 at two sides of the lamination table 100.
Specifically, when the screw threads on the first shaft section 331 and the second shaft section 332 are in the same rotation direction, the first shaft section 331 and the second shaft section 332 may be coaxially disposed and spaced apart from each other along the axial direction, at this time, the driving component may include a first bevel gear fixedly sleeved on the first shaft section 331, a second bevel gear fixedly sleeved on the second shaft section 332, a power bevel gear simultaneously engaged with the first bevel gear and the second bevel gear, and a motor for driving the power bevel gear to rotate, and the motor is mounted on the moving seat 350. When the motor rotates, the power bevel gear rotates, thereby driving the first bevel gear and the second bevel gear engaged with the power bevel gear to rotate, and further realizing the reverse rotation of the first shaft section 331 and the second shaft section 332.
Of course, the driving of the first shaft section 331 and the second shaft section 332 may be performed by other driving members, so long as the first shaft section 331 and the second shaft section 332 can rotate in opposite directions by the arrangement of the driving members, and the specific form of the driving members is not limited in this embodiment.
Referring to fig. 1 to 3, in the present embodiment, the vertical moving mechanism 400 may include a second driving member 420 and a second screw 430 disposed on the mounting base 600, where the second driving member 420 is in transmission connection with the second screw 430, and the second screw 430 extends along a vertical direction. In addition, the moving seat 350 is slidably connected to the mounting seat 600, and the vertical moving mechanism 400 further includes a second transmission member 440 fixedly connected to the moving seat 350, where the second transmission member 440 is screwed to the second screw 430.
When the second driving member 420 drives the second screw rod 430 to rotate, under the spiral transmission of the second driving member 440 and the second screw rod 430 and the sliding limiting effect of the mounting seat 600 on the second driving member 440, the spiral transmission between the second driving member 440 and the second screw rod 430 is converted into the linear feeding motion of the second driving member 440, so as to realize the ascending or descending motion of the moving seat 350, and further realize the ascending or descending of the pressing assembly 200.
The transmission mode can adjust the ascending travel or the descending travel of the material pressing assembly 200 according to actual needs, thereby meeting the lamination requirements of various battery cells 700 with different types. Moreover, the transmission form is stable and reliable, and vibration and noise in the working process of the lamination device of the embodiment are reduced.
Specifically, the second driver 420 is coupled to the mount 600 by a mounting plate 450.
Referring to fig. 1 to 3, in the present embodiment, the vertical moving mechanism 400 may further include a second sliding rail 410 disposed on the mounting base 600, specifically, the second sliding rail 410 is spaced from the second screw 430 and extends along a vertical direction, and the moving base 350 is slidably connected to the second sliding rail 410.
When the second driving member 420 drives the movable base 350 to move up or down, the movable base 350 slides on the second sliding rail 410.
By arranging the second slide rail 410, the sliding connection of the movable seat 350 relative to the mounting seat 600, that is, the sliding connection of the second transmission member 440 relative to the mounting seat 600 is realized, and the spiral transmission of the second screw rod 430 and the second transmission member 440 is assisted, so that the movement of the movable seat 350 in the vertical direction is realized.
Referring to fig. 1 and 2, in the present embodiment, two second sliding rails 410 may be provided, and the two second sliding rails 410 are disposed at intervals along the length direction (left-right direction in the drawing) of the moving seat 350. By means of the arrangement, simultaneous sliding connection of the two ends of the movable seat 350 and the mounting seat 600 is achieved, and the phenomenon that stress concentration of the single-side second sliding rail 410 and the locking phenomenon caused by larger overturning force of the movable seat 350 are caused by one-end suspension is prevented, so that the smooth lifting degree of the movable seat 350 is ensured.
Specifically, a sliding block adapted to the second sliding rail 410 may be fixedly disposed on the moving seat 350, and the sliding connection of the moving seat 350 relative to the mounting seat 600 is achieved by using sliding fit between the sliding block and the second sliding rail 410.
With continued reference to fig. 1 and 2, in the present embodiment, the vertical moving mechanism 400 may further include a second transmission assembly 460, where the second driving member 420 is in transmission connection with the second screw 430 through the second transmission assembly 460.
The arrangement of the second transmission assembly 460 realizes the power transmission from the second driving piece 420 to the second screw rod 430, and not only meets the mounting requirements of various positions of the second driving piece 420, but also ensures that the lamination device of the embodiment has more compact structure and saves the occupied area. Moreover, by selecting the second transmission assembly 460, the purpose of reducing speed and increasing torque can be achieved, so as to ensure reliable driving of the second screw 430.
Specifically, in the present embodiment, the second driving member 420 may be a servo motor, and the second transmission assembly 460 may be a belt transmission assembly. The belt transmission assembly comprises a driving wheel fixedly connected with an output shaft of the servo motor, a driven wheel fixedly sleeved on the second screw rod 430 and a transmission belt sleeved on the driving wheel and the driven wheel. When the output shaft of the servo motor rotates, the driving wheel is driven to rotate, power is output to the driven wheel through the transmission belt, and finally the second screw 430 is driven.
The belt drive assembly is utilized for power transmission, so that the structure is simple, the assembly is easy, and lubrication is almost not needed, thereby reducing pollution of the lubricant to the diaphragm 710 and the pole piece 720.
With continued reference to fig. 1, in this embodiment, the lamination device may further include a lifting mechanism 500 for lifting the lamination table 100, where the lifting mechanism 500 is mounted on the mounting base 600.
In the process of lamination of the lamination device, after the membrane 710 is folded once, the lifting mechanism 500 can drive the lamination table 100 to descend for a certain distance, so that the highest surface on the lamination table 100 with the battery cell 700 placed thereon can be always positioned on the same plane, thereby ensuring the reliability and consistency of the pressing of the lamination assembly 200 on the battery cell 700 and further ensuring the lamination effect.
In this embodiment, the "highest surface on the lamination stage 100 with the battery cell 700 is the highest surface of the battery cell 700 as a whole after the battery cell 700 is placed on the lamination stage 100, that is, the surface of the uppermost layer of the battery cell 700, and the" same plane position "is the same plane position as the position of the table surface of the lamination stage 100 when the battery cell 700 is not placed.
Fig. 4 is a partial enlarged view at a in fig. 1. Referring to fig. 1, in this embodiment, the lifting mechanism 500 includes a bearing seat 540, a lifting screw 510, a lifting screw 520, a sleeve 530 and a supporting frame 560, specifically, the bearing seat 540 is fixedly connected to the mounting seat 600, two sides of the bearing seat 540 are provided with guide rails 550, the supporting frame 560 is slidably connected to the guide rails 550, the lamination table 100 is fixedly arranged on the supporting frame 560, the lifting screw 510 is in threaded connection with the lifting screw 520, wherein the lifting screw 520 is driven to rotate by a lifting driving member (not shown in the figure), the sleeve 530 is sleeved on the lifting screw 520, the lower end of the sleeve is fixedly connected with the lifting screw 510, and the upper end of the sleeve is fixedly connected with the supporting frame 560.
When the lamination table 100 needs to move up and down, the lifting driving member is started to rotate the lifting screw rod 520, the lifting screw rod 510 ascends or descends under the spiral transmission action of the lifting screw rod 520 and the lifting screw nut 510 and the sliding limit action of the guide rail 550, and the sleeve 530 drives the support frame 560 to ascend or descend in the movement process of the lifting screw nut 510 due to the fixed length of the sleeve 530 between the lifting screw nut 510 and the support frame 560, so that the lamination table 100 is lifted up and down.
Fig. 5 is a schematic diagram of the movement paths of the pressing blade 210 and the battery cell 700 when the lamination device provided in the present embodiment performs lamination once. With continued reference to fig. 3, and with reference to fig. 5, after the membrane 710 spreads from n to m along the lamination table 100, the carrying mechanism places the pole piece 720 on the membrane 710, after the pole piece 720 is in place, the vertical moving mechanism 400 drives the two pressing knives 210 on the m side to rise (the path of the pressing knife 210 is a) to be slightly away from the pole piece 720 below the pole piece, specifically, the rising path of the pressing knife 210 can be S1, the horizontal moving mechanism 300 drives the two pressing knives 210 on the m side to move oppositely (the path of the pressing knife 210 is b) so as to enable the pressing knife 210 to draw out from the electric core 700, the lifting mechanism 500 drives the lamination table 100 to drop for a certain distance (the path of the electric core 700 is f), specifically, the falling path of the lamination table 100 can be H so as to ensure that the highest surface of the lamination table 100 where the electric core 700 is placed is always on the same plane after the next lamination action is completed, the vertical moving mechanism 400 drives the two pressing knives 210 on the m side to rise (the path of the pressing knife 210 is c), specifically, the rising path of the pressing knife 210 on the m side can be ensured to be opposite to move to the pressing knife 210 on the m side, and the pressing mechanism 210 can be pressed against the highest surface of the electric core 700 is pressed down (the pressing knife 210 is the path of the pressing core 700 is pressed) to be pressed down) to be the pressing the electric core 700).
During the movement of the m-side pressing blade 210, the n-side pressing blade 210 is always stationary, and the n-side pressing cylinder 230 applies a constant tensile force to the pressing blade 210 under the action of the pressing cylinder 230, so that the pressing blade 210 applies a constant pressure to the battery cell 700 to reliably press the battery cell 700 against the lamination table 100. After the pressing operation of the pressing blade 210 on the m side is completed, a new layer of membrane 710 is spread along the lamination table 100 from the m side to the n side, then the pole piece 720 with the polarity opposite to that of the pole piece 720 is placed on the membrane 710 by the carrying mechanism, the pressing blade 210 on the n side repeats the working procedure of the pressing blade 210 on the m side, and the end of the battery cell 700 on the n side is pressed again. The lamination operation of the battery cell 700 is finally achieved by such cyclic reciprocation of the m-side press 210 and the n-side press 210.
Specifically, when the pressing blade 210 descends along the path e, the descending stroke thereof is the sum of S1 and S2, wherein S1 may be smaller than S2. In the embodiment, the main purpose of the ascending travel S1 of the pressing blade 210 is to prevent the pressing blade 210 from scratching the battery cell 700 during the blade drawing process, and the main purpose of the ascending travel S2 of the pressing blade 210 is to avoid the battery cell 700 on the lamination table 100.
In this embodiment, the term "primary laminate" refers to that the membrane 710 is folded once from the m-side to the n-side (or from the n-side to the m-side), and one pole piece 720 is placed on the membrane 710. That is, H is equal to the sum of the thicknesses of one membrane 710 and one pole piece 720.
In this embodiment, the pressing blades 210 on the m side and the n side may press the ends of the battery cell 700 during the pressing process of the battery cell 700. By the arrangement, the membrane 710 to be folded is not pulled by the next folding action, meanwhile, the battery cell 700 after the folding is completed is not deformed loosely, and the lamination effect of the lamination device of the embodiment is further improved.
The embodiment also provides a lamination machine, which comprises the lamination device.
By arranging the above-mentioned lamination device in the lamination machine, the lamination machine accordingly has all the advantages of the above-mentioned lamination device, and will not be described in detail here.
Specifically, the lamination machine may further include a control module, where the control module is electrically connected to the first driving member 320, the second driving member 420, and the lifting driving member. By the arrangement, automatic lamination of the lamination machine is realized, so that the lamination efficiency of the battery cell 700 is improved.
In addition, the lamination machine may further include a handling mechanism for handling the pole piece 720 and an unreeling mechanism for unreeling the diaphragm 710, wherein a driving part of the handling mechanism and a driving part of the unreeling mechanism may be electrically connected with the control module.
In the lamination process, the lamination device is fixed and the unreeling mechanism drives the diaphragm 710 to reciprocate, so that lamination operation on the lamination table 100 can be realized, or the lamination device is reciprocated and the unreeling mechanism is fixed, and the lamination operation can be realized by utilizing the lamination table 100 to receive the diaphragm released by the unreeling mechanism.
It should be noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present invention, and not for limiting the same, and although the present invention has been described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that the technical solution described in the above-mentioned embodiments may be modified or some or all of the technical features may be equivalently replaced, and these modifications or substitutions do not deviate from the essence of the corresponding technical solution from the scope of the technical solution of the embodiment of the present invention.
Claims (12)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811116105.8A CN109216775B (en) | 2018-09-25 | 2018-09-25 | Lamination device and lamination machine |
| CN202411445363.6A CN119340497A (en) | 2018-09-25 | 2018-09-25 | Lamination device and lamination machine |
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| CN201811116105.8A CN109216775B (en) | 2018-09-25 | 2018-09-25 | Lamination device and lamination machine |
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| CN202411445363.6A Division CN119340497A (en) | 2018-09-25 | 2018-09-25 | Lamination device and lamination machine |
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| CN109818040B (en) * | 2019-02-25 | 2024-07-30 | 无锡先导智能装备股份有限公司 | Lamination mechanism, lamination ending device and lamination ending method |
| CN110054015A (en) * | 2019-04-26 | 2019-07-26 | 东莞市佳的自动化设备科技有限公司 | A kind of lamination device |
| CN110061298A (en) * | 2019-04-26 | 2019-07-26 | 东莞市佳的自动化设备科技有限公司 | Lamination push type broach opening and closing control device |
| CN110323496B (en) * | 2019-07-11 | 2024-05-14 | 深圳市光大激光科技股份有限公司 | Multi-station lamination device and multi-station lamination method |
| CN112652802B (en) * | 2020-12-30 | 2022-12-13 | 蜂巢能源科技有限公司 | Lamination device |
| CN113889653B (en) * | 2021-09-18 | 2025-02-07 | 深圳市科晶智达科技有限公司 | A pole piece stacking device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207052707U (en) * | 2017-08-24 | 2018-02-27 | 雷天温斯顿电池（长泰）有限公司 | A kind of battery battery core laminating machine |
| CN208723031U (en) * | 2018-09-25 | 2019-04-09 | 无锡先导智能装备股份有限公司 | Lamination device and laminating machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201307621Y (en) * | 2008-11-07 | 2009-09-09 | 深圳市吉阳自动化科技有限公司 | Full-automatic laminating device of power battery cell |
| CN103904369B (en) * | 2014-04-03 | 2016-08-24 | 深圳市吉阳自动化科技有限公司 | Pole piece lamination winding head and cutting, winding and lamination all-in-one machine |
| CN204966618U (en) * | 2015-09-22 | 2016-01-13 | 浙江佳贝思绿色能源有限公司 | Electricity core anchor clamps |
| CN106229553B (en) * | 2016-08-16 | 2019-09-10 | 无锡先导智能装备股份有限公司 | Lithium battery lamination device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207052707U (en) * | 2017-08-24 | 2018-02-27 | 雷天温斯顿电池（长泰）有限公司 | A kind of battery battery core laminating machine |
| CN208723031U (en) * | 2018-09-25 | 2019-04-09 | 无锡先导智能装备股份有限公司 | Lamination device and laminating machine |
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| CN119340497A (en) | 2025-01-21 |
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