CN114639857A

CN114639857A - Lamination machine

Info

Publication number: CN114639857A
Application number: CN202011473666.0A
Authority: CN
Inventors: 李剑; 宗勇; 刘云
Original assignee: Shenzhen Chengjie Intelligent Equipment Co Ltd
Current assignee: Shenzhen Chengjie Intelligent Equipment Co Ltd
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2022-06-17

Abstract

The invention belongs to a laminating machine, which comprises a diaphragm unreeling device, a laminating table device, a material placing device, a first diaphragm moving device, a second diaphragm moving device, a diaphragm cutting device, a diaphragm reeling device and a power core taking device, wherein the diaphragm unreeling device is connected with the laminating table device through a first connecting rod; the membrane unreeling device comprises an automatic belt splicing assembly and two unreeling assemblies for placing membrane material rolls, wherein one unreeling assembly is arranged above the other unreeling assembly; the automatic tape splicing assembly comprises a first cutter assembly, an upper pressing assembly and a lower pressing assembly, the lower pressing assembly presses a section of the membrane material roll positioned above downwards to enable the section of the membrane material roll positioned above to be attached to a section of the membrane material roll positioned below, and the first cutter assembly cuts off the membrane material roll positioned above; the pressing assembly presses a section of the membrane material roll located below upwards to fit the section of the membrane material roll located below and a section of the membrane material roll located above together, and the first cutter assembly cuts off the membrane material roll located below. The laminating machine is high in production efficiency and saves production time.

Description

Lamination machine

Technical Field

The invention belongs to the technical field of battery core manufacturing, and particularly relates to a laminating machine.

Background

The lithium ion power battery is mainly used for energy supply of new energy automobiles and is a core component of the electric automobiles. In the manufacturing process of the lithium ion battery, the lithium ion battery has a winding structure and a lamination structure. When the cell with the laminated structure is manufactured, a laminating machine is generally adopted for manufacturing.

At present, a lamination machine usually adopts a Z-shaped lamination mode to manufacture a lamination battery core, in the stacking process of a pole piece and a diaphragm, a positive pole piece and a negative pole piece are required to be alternately stacked, and the positive pole piece and the negative pole piece are separated by the diaphragm. The Z-shaped lamination mode is that a cut positive plate and a cut negative plate are sequentially placed on a diaphragm, when one plate is placed, the diaphragm is folded to cover one layer, the diaphragm forms a Z shape, the plate group is transferred to a diaphragm winding station by a plate transfer manipulator until the required number of layers is reached, the plate group is clamped tightly by the winding manipulator, the diaphragm is coated outside the plate group, after the diaphragm coated outside the plate group reaches the set number of turns, the diaphragm is cut by a cutter, the equipment automatically enters the next plate group for assembly, meanwhile, anti-loose gummed paper is pasted on the plate group coated with the diaphragm, and a complete naked battery core is formed.

However, when the existing lamination machine is used for manufacturing a lamination battery core, the production speed is low, the efficiency is low, and the requirements of customers cannot be well met, for example, when a diaphragm is unreeled, when a roll of diaphragm is used up, the diaphragm needs to be replaced, the operation is continued after the diaphragm is replaced again, the diaphragm needs to be replaced when the diaphragm is used up every time, and the production efficiency is greatly reduced.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: to the problem that current pelleter work efficiency is low, provide a lamination machine.

In order to solve the technical problem, an embodiment of the invention provides a lamination machine, which comprises a diaphragm unreeling device, a lamination table device, a material placing device, a first sheet moving device, a second sheet moving device, a diaphragm cutting device, a diaphragm reeling device and a core taking device, wherein the diaphragm unreeling device is arranged on the lamination table device; the number of the discharging devices is two, one discharging device is used for placing the positive plate, and the other discharging device is used for placing the negative plate;

the membrane unreeling device comprises an automatic belt splicing assembly and two unreeling assemblies used for placing membrane material rolls, wherein one unreeling assembly is arranged above the other unreeling assembly; one unwinding assembly is used for placing a currently used membrane material roll, and the other unwinding assembly is used for placing a standby membrane material roll; the first sheet moving device and the second sheet moving device are used for alternately placing the positive sheets and the negative sheets on the sheet stacking table device, and the currently used membrane material roll is coated on the positive sheets and the negative sheets so as to separate the positive sheets and the negative sheets which are stacked together to form a primary battery cell;

the battery core taking device is used for moving the primary battery core on the lamination table device to the diaphragm winding device, the diaphragm winding device drives the primary battery core to rotate so that the diaphragm material roll is coated on the periphery of the primary battery core, and then the diaphragm cutting device cuts the diaphragm material roll to obtain a battery core coated with a diaphragm on the periphery;

the automatic tape splicing assembly comprises a first cutter assembly, an upper pressing assembly and a lower pressing assembly, the first cutter assembly is arranged between the two unreeling assemblies, and the upper pressing assembly and the lower pressing assembly are located on one side of the unreeling assemblies and are arranged oppositely;

the pressing assembly is used for pressing a section of the membrane material roll positioned above downwards to attach a section of the membrane material roll positioned above to a section of the membrane material roll positioned below, and after the section of the membrane material roll positioned above is attached to the section of the membrane material roll positioned below, the first cutter assembly cuts off the membrane material roll positioned above;

the upper pressing assembly is used for pressing a section of the membrane material roll positioned below upwards to attach a section of the membrane material roll positioned below to a section of the membrane material roll positioned above, and the first cutter assembly cuts off the membrane material roll positioned below after the section of the membrane material roll positioned below is attached to the section of the membrane material roll positioned above.

Optionally, the membrane unwinding device further comprises a membrane driving assembly, one end of the currently used membrane material roll passes through the membrane driving assembly and is positioned on the lamination table device, the membrane driving assembly coats the membrane material roll on the positive plate and the negative plate in a zigzag mode, and the positive plate and the negative plate which are overlapped together are matched with the positive plate and the negative plate to be alternately overlapped so that the positive plate and the negative plate which are overlapped together are mutually separated.

Optionally, the diaphragm driving assembly includes a first driving member, a driving bottom plate, and a first material passing roller, the driving bottom plate is disposed at an output end of the first driving member, the first material passing roller is rotatably disposed on the driving bottom plate, and the diaphragm material is wound around the first material passing roller; the first driving piece is used for driving the driving bottom plate to horizontally move;

the unreeling assembly comprises an air expansion shaft and a second driving piece, the air expansion shaft is connected with the output end of the second driving piece, the second driving piece is used for driving the air expansion shaft to rotate, and the air expansion shaft is used for placing the membrane material roll.

Optionally, the first cutter assembly comprises a first cutter and a third driving member, the first cutter is arranged at an output end of the third driving member, and the third driving member is used for driving the first cutter to cut off the membrane material roll;

the upper pressing assembly comprises a first pressing roller and a fourth driving piece, the first pressing roller is arranged at the output end of the fourth driving piece, and the fourth driving piece is used for driving the first pressing roller to move up and down;

the pressing assembly comprises a second pressing roller and a fifth driving piece, the second pressing roller is arranged at the output end of the fifth driving piece, and the fifth driving piece is used for driving the second pressing roller to move up and down.

Optionally, the automatic tape splicing assembly further comprises a second cutter assembly and a third cutter assembly, and the second cutter assembly is located on one side, away from the unwinding assembly, of the pressing assembly; the third cutter assembly is positioned on one side, away from the unreeling assembly, of the upper pressing assembly; the second cutter assembly is used for cutting off the section of the membrane material roll which is positioned above and bypasses the pressing assembly after the section of the membrane material roll which is positioned above bypasses the pressing assembly; the third cutter assembly is adapted to sever a section of the underlying roll of separator material that bypasses the hold-up assembly after the section of the underlying roll of separator material bypasses the hold-up assembly.

Optionally, the lamination table device comprises a mounting base plate, a first lifting assembly, a second lifting assembly, a lamination table, a first pressing assembly and a second pressing assembly; the lamination table is arranged on the mounting bottom plate and used for bearing the pole piece and the diaphragm; the first lifting assembly is used for driving the first pressing assembly to lift, and the second lifting assembly is used for driving the second pressing assembly to lift;

the first pressing assembly comprises a first driving assembly, a first pressing claw assembly and a second pressing claw assembly, the first driving assembly is used for driving the first pressing claw assembly and the second pressing claw assembly to approach or move away from each other, and the first pressing claw assembly and the second pressing claw assembly are used for pressing the first end of the pole piece and the first end of the diaphragm;

the second pressing assembly comprises a second driving assembly, a third pressing claw assembly and a fourth pressing claw assembly, the second driving assembly is used for driving the third pressing claw assembly and the fourth pressing claw assembly to be close to or away from each other, and the third pressing claw assembly and the fourth pressing claw assembly are used for pressing the second end of the pole piece and the second end of the diaphragm.

Optionally, the lamination stacking machine further comprises a detection and correction device; the detection and correction device comprises a waste collection assembly, a detection platform, a detection CCD and a sixth driving piece, wherein the detection platform is arranged at the output end of the sixth driving piece, the detection CCD is arranged on the detection platform, the detection CCD is used for detecting whether a pole piece placed on the detection platform is qualified or not and whether the position of the pole piece is inclined or not, the sixth driving piece is used for driving the detection platform to rotate so as to enable the pole piece placed on the detection platform to be corrected, and the waste collection assembly is used for collecting unqualified pole pieces.

Optionally, the separator winding device includes a flattening assembly, a first clamping assembly, a second clamping assembly and a driving rotation assembly, the first clamping assembly is used for clamping a first end of the battery cell conveyed from the lamination table device, and the second clamping assembly is used for clamping a second end of the battery cell conveyed from the lamination table device; the driving rotating assembly is used for driving the first clamping assembly and the second clamping assembly to rotate so as to drive the battery core to rotate, so that the membrane material roll is coated on the periphery of the battery core, the membrane cutting device is used for cutting off the membrane material roll, and the flattening assembly is used for flattening a fracture of the membrane material roll on the battery core.

Optionally, the laminating machine further comprises a side adhesive tape sticking device, the side adhesive tape sticking device comprises an adhesive tape sticking clamp assembly, an adhesive tape sticking frame, a seventh driving piece and an adhesive tape feeding assembly, the adhesive tape sticking clamp assembly is arranged on the adhesive tape sticking frame and used for clamping the battery core which is conveyed by the battery core taking device and is coated with the diaphragm at the periphery, the adhesive tape feeding assembly is used for attaching the stop adhesive tape to the battery core, and the seventh driving piece is used for driving the adhesive tape sticking frame to rotate so that the adhesive tape feeding assembly can attach the stop adhesive tape to the periphery of the battery core.

Optionally, the adhesive feeding assembly comprises an adhesive placing disc, an adhesive tape cutting assembly, an adhesive clamping head, an adhesive tape mounting plate, an eighth driving piece, a moving frame and a ninth driving piece;

the adhesive tape placing disc, the adhesive tape cutting assembly and the adhesive tape clamping head are all arranged on the adhesive tape mounting plate, the adhesive tape placing disc is used for placing a termination adhesive tape, and one end of the termination adhesive tape is pulled to the adhesive tape clamping head; the adhesive tape mounting plate is arranged on the movable frame in a vertically movable mode, the movable frame is arranged at the output end of the ninth driving piece, the ninth driving piece is used for driving the movable frame to be close to the battery cell so as to enable the adhesive tape clamping head to be close to the battery cell, and the eighth driving piece is used for driving the adhesive tape mounting plate to vertically move so as to enable the adhesive tape stopping head to be attached to the battery cell; and after the termination adhesive tape is attached to the battery cell, the adhesive tape cutting assembly cuts off the termination adhesive tape.

Compared with the prior art, the lamination machine provided by the embodiment of the invention has the advantages that by adopting the membrane unwinding device provided with two unwinding assemblies, and the membrane material rolls are arranged on both the unwinding assemblies, when one membrane material roll is in use, the other membrane material roll can be used as a spare material roll, when the membrane material roll in use is about to be used up, one end of the spare material roll is pulled out by a small section and is pasted with an adhesive tape, the upper pressing assembly or the lower pressing assembly presses the section of the membrane material roll which is about to be used up to the direction close to the spare material roll so as to paste the section of the membrane material roll which is about to be used up with the section of the spare material roll, after the two membrane material rolls are pasted together, the first cutter assembly cuts the membrane material roll which is about to be used up, so that the membrane material roll which is about to be used up is connected together with the spare material roll so as to be used up, at the moment, the membrane material roll is replaced with a new membrane material roll as a standby material roll on the unreeling assembly, the whole process is smooth in connection, long material changing time does not need to be waited, the production efficiency is improved, and therefore the production efficiency of the laminating machine is improved.

Drawings

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

fig. 2 is a schematic structural diagram of a membrane unwinding device according to an embodiment of the present invention;

FIG. 3 is an enlarged view at A in FIG. 2;

FIG. 4 is a schematic view of a section of the roll of separator material positioned above, bypassing the hold-down assembly;

FIG. 5 is a schematic view of an unwinding assembly and a roll of separator material according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a tension detecting assembly according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a tension assembly according to an embodiment of the present invention

FIG. 8 is a schematic structural diagram of a lamination station apparatus provided in accordance with an embodiment of the present invention;

FIG. 9 is one of the schematic structural views of a first lifting assembly and a first pressing assembly provided in accordance with an embodiment of the present invention;

fig. 10 is a second schematic structural view of the first lifting assembly and the first pressing assembly according to an embodiment of the present invention;

FIG. 11 is a schematic structural view of a third lifting assembly and a laminating station provided in accordance with an embodiment of the present invention;

FIG. 12 is a schematic structural diagram of a detection and normalization device according to an embodiment of the invention;

FIG. 13 is a schematic structural view of a platen assembly provided in accordance with one embodiment of the present invention;

FIG. 14 is a schematic structural diagram of a first clamping assembly, a second clamping assembly and a drive rotation assembly provided in accordance with an embodiment of the present invention;

FIG. 15 is a schematic view of a portion of a side adhesive applying apparatus according to an embodiment of the present invention;

fig. 16 is a schematic structural diagram of a device for applying side glue according to an embodiment of the present invention.

The reference numerals in the specification are as follows:

1. a membrane unwinding device; 11. an automatic splicing assembly; 111. a first cutter assembly; 1111. a first cutter; 1112. a third driving member;

112. an upper pressing assembly; 1121. a first press roll; 1122. a fourth drive;

113. pressing the assembly; 1131. a second press roll; 1132. a fifth driving member;

114. a second cutter assembly; 1141. a second cutter;

115. a third cutter assembly; 1151. a third cutter;

12. an unwinding assembly; 121. an air expansion shaft; 122. a second driving member;

13. a membrane material roll;

14. a diaphragm drive assembly; 141. a first driving member; 142. a drive chassis; 143. a first material passing roller;

15. a tension detection assembly; 151. a tension bracket; 152. a tension roller; 153. a tension sensor;

16. a tension assembly; 161. a twelfth driving member; 162. a rotating shaft; 163. a tension roller; 164. connecting the swing arm;

17. unwinding a mounting rack; 18. a second material passing roller; 19. a cache component;

2. a lamination station device; 21. mounting a bottom plate;

22. a first lifting assembly; 221. a fifteenth driving member; 222. a first screw base; 223. a third screw rod; 224. a fifth feed screw nut;

23. a lamination table; 24. a first hold-down assembly; 241. a first drive assembly; 2411. a thirteenth driving member; 2412. a first lead screw; 2413. a first lead screw nut; 2414. a second feed screw nut; 2415. a first mounting assembly;

242. a first pressing claw component; 2421. a first fixed component; 2422. a seventeenth driving member; 2423. a first pressing claw;

243. a second pressing claw component; 2431. a second fixed component; 2432. an eighteenth driving member; 2433. a second pressing claw;

25. a second hold-down assembly; 251. a second drive assembly; 252. a third pressing claw component; 253. a fourth pressing claw component;

26. a third lifting assembly; 261. a twenty-first driving member; 262. a third screw base; 263. a fifth screw rod; 264. a seventh feed screw nut;

27. a third drive assembly; 271. a twenty-second driving member; 272. a fourth screw base; 273. a sixth lead screw; 274. an eighth feed screw nut;

3. a discharging device;

4. a first sheet moving device;

5. a second sheet moving device; 6. a diaphragm cut-off device;

7. a separator winding device; 71. a flattening assembly; 72. a first clamping assembly; 73. a second clamping assembly; 74. driving the rotating assembly;

8. taking a core device;

9. detecting a righting device; 91. a waste collection assembly; 911. a fixed mount; 912. a waste bin; 913. a twenty-seventh driving member; 92. a detection table; 93. a twenty-fifth driving member; 94. a sixth driving member; 95. a twenty-sixth driving member; 96. a first mounting plate; 97. a second mounting plate;

10. a side glue pasting device; 101. gluing a clamp component; 1011. a twenty-eighth driving member; 1012. a twenty-ninth driving member; 1013. A pressing piece is arranged; 1014. a push-down member; 102. a gluing frame; 103. a seventh driving member;

104. a glue feeding assembly; 1041. placing a rubber plate; 1042. a tape cutting assembly; 1043. clamping a rubber head; 1044. a tape mounting plate; 1045. an eighth driving member; 1046. a movable frame; 1047. a ninth driving member;

20. and a frame.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1-3, a lamination machine provided by an embodiment of the present invention includes a membrane unwinding device 1, a lamination table device 2, a material discharge device 3, a first sheet moving device 4, a second sheet moving device 5, a membrane cutting device 6, a membrane winding device 7, a core taking device 8, and a frame 20; the membrane unreeling device 1, the lamination table device 2, the emptying device 3, the first sheet moving device 4, the second sheet moving device 5, the membrane cutting device 6, the membrane reeling device 7 and the electricity core taking device 8 are respectively arranged on the frame 20; the material placing devices 3 are provided with two material placing devices, one material placing device is used for placing the positive plate, and the other material placing device is used for placing the negative plate.

As shown in fig. 2-3, the membrane unwinding device 1 comprises an automatic splicing assembly 11 and two unwinding assemblies 12 for placing membrane material rolls 13, wherein one unwinding assembly 12 is arranged above the other unwinding assembly 12; one of the unwinding assemblies 12 is used for placing a currently used membrane material roll, and the other unwinding assembly 12 is used for placing a standby membrane material roll; the first sheet moving device 4 and the second sheet moving device 5 are used for alternately placing the positive sheets and the negative sheets on the lamination table device 2, and the currently used separator material roll 13 is coated on the positive sheets and the negative sheets so as to separate the stacked positive sheets and the stacked negative sheets from each other to form a primary battery core;

the battery cell taking device 8 is used for moving the primary battery cell on the lamination table device 2 to the diaphragm winding device 7, the diaphragm winding device 7 drives the primary battery cell to rotate so that the diaphragm material roll 13 is coated on the periphery of the primary battery cell, and the diaphragm cutting device 6 cuts the diaphragm material roll 13 to obtain the battery cell coated with the diaphragm on the periphery;

as shown in fig. 3, the automatic splicing assembly 11 includes a first cutter assembly 111, an upper pressing assembly 112 and a lower pressing assembly 113, the first cutter assembly 111 is disposed between the two unwinding assemblies 12, and the upper pressing assembly 112 and the lower pressing assembly 113 are disposed at one side of the unwinding assemblies 12 and are disposed opposite to each other;

the pressing assembly 113 is used for pressing a section of the membrane material roll 13 positioned above downwards to attach a section of the membrane material roll 13 positioned above to a section of the membrane material roll 13 positioned below, and after the section of the membrane material roll 13 positioned above is attached to the section of the membrane material roll 13 positioned below, the first cutter assembly 111 cuts off the membrane material roll 13 positioned above;

the pressing-up assembly 112 serves to press up a section of the underlying separator roll 13 to attach a section of the underlying separator roll 13 to a section of the overlying separator roll 13, and the first cutter assembly 111 cuts off the underlying separator roll 13 after attaching a section of the underlying separator roll 13 to a section of the overlying separator roll 13.

Compared with the prior art, the lamination machine provided by the embodiment of the invention adopts the membrane winding device 7 provided with two unwinding assemblies 12, and the two unwinding assemblies 12 are both provided with the membrane material rolls 13, when one membrane material roll 13 is in use, the other membrane material roll 13 can be used as a standby material roll, when the membrane material roll 13 in use is about to be used up, one end of the standby material roll is pulled out for a short section and is pasted with an adhesive tape, the upper pressing assembly 112 or the lower pressing assembly 113 presses one section of the membrane material roll 13 which is about to be used up in the direction close to the standby material roll (if the lower membrane material roll 13 is about to be used up, one section of the membrane material roll 13 which is about to be used up is pressed up by the upper pressing assembly 112, and if the upper membrane material roll 13 is about to be used up, one section of the membrane material roll 13 which is about to be used up is pressed down by the lower pressing assembly 113), one section of the membrane material roll 13 which is about to run out is attached to one section of the standby material roll, after the two membrane material rolls 13 are attached together, the first cutter assembly 111 cuts off the membrane material roll 13 which is about to run out, the membrane material roll 13 which is about to run out is connected with the standby material roll, the standby material roll can be used, at the moment, the unwinding assembly 12 which is used up by the membrane material roll 13 is replaced with a new membrane material roll 13 to serve as the standby material roll, the whole process is smooth in connection, long material changing time does not need to be waited, the production efficiency is improved, and the production efficiency of the lamination machine is improved.

In an embodiment, as shown in fig. 2, the membrane unwinding device further includes an unwinding mounting frame 17, the automatic splicing assembly 11 and the unwinding assembly 12 are both disposed on the unwinding mounting frame 17, a plurality of second material passing rollers 18 are disposed on the unwinding mounting frame 17, and one end of the membrane material roll 13 sequentially passes around the second material passing rollers 18 and is wound on the membrane driving assembly 14. The feeding of the roll of membrane material 13 is facilitated by the provision of a second feed roller 18.

In one embodiment, as shown in fig. 2, the membrane unwinding device further includes a membrane driving assembly 14, wherein one end of one membrane material roll 13 (currently used membrane material roll) is wound on the membrane driving assembly 14, and the membrane material roll 13 is pulled by the membrane driving assembly 14 and is coated on the pole pieces; another roll of separator material 13 is ready for use. The diaphragm driving assembly 14 is arranged to be matched with the lamination table device 2 in the lamination machine, so that the pole piece is coated with the diaphragm in a zigzag mode.

In an embodiment, as shown in fig. 2, the diaphragm driving assembly 14 includes a first driving member 141, a driving base plate 142 and a first material passing roller 143, the first driving member 141 is fixedly disposed on the unwinding mounting frame 17, the driving base plate 142 is disposed at an output end of the first driving member 141, the first material passing roller 143 is rotatably disposed on the driving base plate 142, and the diaphragm material roll 13 is wound around the first material passing roller 143; the first driving member 141 is used for driving the driving base plate 142 to move horizontally; the first driving member 141 can use a linear module, and has high working stability.

As shown in fig. 5, the unwinding assembly 12 includes an air inflation shaft 121 and a second driving member 122, the air inflation shaft 121 is connected to an output end of the second driving member 122, the second driving member 122 is used for driving the air inflation shaft 121 to rotate, and the air inflation shaft 121 is used for placing the membrane material roll 13. The air shaft 121 is a conventional element for placing the roll of membrane material, and cooperates with the second driving member 122 to realize the transportation of the roll of membrane material.

Specifically, the second driving member 122 includes a first motor and a first motor frame, the inflatable shaft 121 is rotatably connected to the unwinding mounting frame 17 through a bearing, the first motor is fixed to the unwinding mounting frame 17 through the first motor frame, and transmission is realized through a synchronous pulley structure between the output ends of the inflatable shaft 121 and the first motor. The synchronous pulley structure is a conventional structure, so that the synchronous pulley structure is not unfolded here.

In one embodiment, as shown in fig. 3, the first cutter assembly 111 includes a first cutter 1111 and a third driving member 1112, the first cutter 1111 is disposed at an output end of the third driving member 1112, and the third driving member 1112 is configured to drive the first cutter 1111 to cut the roll of separator material 13.

In an embodiment, the third driving element 1112 may adopt a first push rod cylinder, the first push rod cylinder is fixed on the unreeling mounting frame 17 through a first cylinder frame, and the first cutter 1111 is fixedly arranged on a piston rod of the first push rod cylinder through a first cutter seat. Through adopting first push rod cylinder, it is with low costs, response efficiency is fast.

In an embodiment, as shown in fig. 3, the pressing-up assembly 112 includes a first pressing roller 1121 and a fourth driver 1122, the first pressing roller 1121 is disposed at an output end of the fourth driver 1122, and the fourth driver 1122 is configured to drive the first pressing roller 1121 to move up and down; the fourth driving element 1122 may be a second push rod cylinder, the second push rod cylinder is fixed to the unwinding mounting frame 17 through a second cylinder frame, and the first pressing roller 1121 is fixedly disposed on a piston rod of the second push rod cylinder through a first pressing roller seat. The first pressing roller 1121 is driven to move up and down by the second push rod cylinder, so that the cost is low and the response efficiency is high.

The pressing assembly 113 includes a second pressing roller 1131 and a fifth driving member 1132, the second pressing roller 1131 is disposed at an output end of the fifth driving member 1132, and the fifth driving member 1132 is used for driving the second pressing roller 1131 to move up and down; the fifth driving element 1132 may adopt a third push rod cylinder, the third push rod cylinder is fixed on the unwinding mounting frame 17 through a third cylinder frame, and the second pressing roller 1131 is fixedly disposed on a piston rod of the third push rod cylinder through a second pressing roller seat. The third push rod cylinder is adopted to drive the second pressing roller 1131 to move up and down, so that the cost is low and the response efficiency is high.

In an embodiment, as shown in fig. 3, the automatic splicing assembly 11 further includes a second cutter assembly 114 and a third cutter assembly 115, the second cutter assembly 114 is located on a side of the pressing assembly 113 away from the unwinding assembly 12; the third cutter assembly 115 is positioned on the side of the upper pressing assembly 112 away from the unwinding assembly 12; after the section of the roll of separator material 13 located above has passed around the hold-down assembly 113, the second cutter assembly 114 is used to cut off the section of the roll of separator material 13 located above that has passed around the hold-down assembly 113; after the section of the underlying roll of separator material 13 has bypassed the upper press assembly 112, the third cutter assembly 115 is used to cut the section of the underlying roll of separator material 13 that has bypassed the upper press assembly 112.

Taking the membrane material roll 13 positioned at the lower part as the currently used material roll and the membrane material roll 13 positioned at the upper part as the standby material roll as an example, the membrane unreeling device of the invention realizes the automatic tape splicing process as follows: as soon as the lower roll of membrane material 13 is depleted, a short length of membrane material 13 is pulled from the upper roll of membrane material 13 and bypasses the hold-down assembly 113 (as shown in figure 4), a small pulled-out material roll is pasted with an adhesive tape or the lower membrane material roll 13 is pasted with an adhesive tape (the specific position of the adhesive tape is not limited as long as the material rolls are pasted together), the upper pressing component 112 presses a section of the lower membrane material roll upwards, so that a section of the lower roll of separator material will engage the pulled-out short section of the upper roll of separator material 13, the second cutter assembly 114 will cut off the excess roll of separator material in the pulled-out short section of the upper roll of separator material 13, and the first cutter assembly 111 will cut off the lower roll of separator material 13 (the stock roll), from which the upper stock roll will be joined to the lower, near-end roll, so that the stock roll can be used.

The working process of the separator roll 13 located above as the currently used roll and the separator roll 13 located below as the standby roll is the same as the working process of the separator roll 13 located below as the currently used roll and the separator roll 13 located above as the standby roll, and the present invention is not described herein again.

In one embodiment, as shown in fig. 3, the second cutter assembly 114 includes a tenth driving member (not shown) and a second cutting knife 1141, the second cutting knife 1141 is disposed at an output end of the tenth driving member, and the tenth driving member is used for driving the second cutting knife 1141 to cut off a section of the membrane material roll 13 located above, which bypasses the pressing assembly 113;

the third cutter assembly 115 includes an eleventh drive member (not shown) and a third cutter 1151, the third cutter 1151 is disposed at an output end of the eleventh drive member, and the eleventh drive member is used for driving the third cutter 1151 to cut off a section of the underlying membrane material roll 13 bypassing the upper press assembly 112.

The second cutter 1141 and the third cutter 1151 can be pushed by an air cylinder, and the second cutter 1141 and the third cutter 1151 can be driven to move by matching of a motor, a screw rod, a screw nut and a guide rail.

In one embodiment, as shown in fig. 2 and 6, the membrane unwinding device further includes a tension detecting assembly 15 disposed between the unwinding assembly 12 and the membrane driving assembly 14, the tension detecting assembly 15 includes a tension bracket 151, a tension roller 152 and a tension sensor 153, two ends of the tension roller 152 are respectively connected to the tension sensor 153 and rotatably connected to the tension bracket 151 through the tension sensor 153, and the tension roller 152 is used for winding the membrane material roll 13. The tension sensor 153 is arranged to detect the tension of the membrane material roll 13, so as to adjust the tension of the membrane material roll according to actual requirements.

In an embodiment, as shown in fig. 7, the membrane unwinding device further includes a tensioning assembly 16, the tensioning assembly 16 includes a twelfth driving element 161, a rotating shaft 162, a tensioning roller 163 and a connecting swing arm 164, the rotating shaft 162 is connected to an output end of the twelfth driving element 161, one end of the connecting swing arm 164 is fixedly connected to the rotating shaft 162, the other end of the connecting swing arm 164 is rotatably connected to the tensioning roller 163, the membrane material roll 13 is wound on the tensioning roller 163, and the twelfth driving element 161 is configured to drive the rotating shaft 162 to rotate so as to drive the connecting swing arm 164 to swing, so as to drive the tensioning roller 163 to tension the membrane material roll 13.

In an embodiment, the twelfth driving element 161 includes a second motor and a second motor frame, the rotating shaft 162 is connected to an output end of the second motor through a coupling, the second motor is fixed to the unwinding mounting frame 17 through the second motor frame, and the rotating shaft 162 is driven to rotate by the second motor, so that the tensioning roller 163 swings around the rotating shaft 162 as a rotation center, and thus a tensioning degree of the tensioning roller 163 on the membrane material roll 13 can be adjusted.

In one embodiment, as shown in fig. 2, the membrane unwinding device further comprises a buffer assembly 19 disposed between the tensioning assembly 16 and the membrane driving assembly 14, and the buffer assembly 19 can buffer the membrane material roll. Wherein the cache memory component 19 may employ existing cache memory structures.

In one embodiment, as shown in fig. 8, the lamination station apparatus 2 includes a mounting base plate 21, a first lifting assembly 22, a second lifting assembly (not shown), a lamination station 23, a first pressing assembly 24, and a second pressing assembly 25; the lamination table 23 is arranged on the mounting base plate 21; the lamination table 23 is used for bearing materials (diaphragms and pole pieces); the first lifting assembly 22 is used for driving the first pressing assembly 24 to lift, and the second lifting assembly is used for driving the second pressing assembly 25 to lift;

the first pressing assembly 24 comprises a first driving assembly 241, a first pressing claw assembly 242 and a second pressing claw assembly 243, the first pressing claw assembly 242 and the second pressing claw assembly 243 are oppositely arranged, and the first driving assembly 241 is used for driving the first pressing claw assembly 242 and the second pressing claw assembly 243 to approach or move away from each other; the first pressing claw assembly 242 and the second pressing claw assembly 243 are used for pressing a first end of the material;

the second pressing assembly 25 comprises a second driving assembly 251, a third pressing claw assembly 252 and a fourth pressing claw assembly 253, the third pressing claw assembly 252 and the fourth pressing claw assembly 253 are oppositely arranged, and the second driving assembly 251 is used for driving the third pressing claw assembly 252 and the fourth pressing claw assembly 253 to approach to or move away from each other; the third clamping jaw assembly 252 and the fourth clamping jaw assembly 253 are used for pressing a second end of the material.

When the first pressing claw assembly 242 and the second pressing claw assembly 243 press the first end of the pressing material, the second driving assembly 251 drives the third pressing claw assembly 252 and the fourth pressing claw assembly 253 to move away from each other, so that the third pressing claw assembly 252 and the fourth pressing claw assembly 253 do not press the second end of the pressing material, and when the third pressing claw assembly 252 and the fourth pressing claw assembly 253 press the second end of the pressing material, the first driving assembly 241 drives the first pressing claw assembly 242 and the second pressing claw assembly 243 to move away from each other, so that the first pressing claw assembly 242 and the second pressing claw assembly 243 do not press the first end of the pressing material, and therefore the lamination machine is prevented from interfering with the first pressing claw assembly 242 and the second pressing claw assembly 243 or the third pressing claw assembly 252 and the fourth pressing claw assembly 253 when the lamination machine carries out lamination of the pole piece and the membrane unwinding device of the lamination machine to carry out Z-shaped coating on the membrane pole piece.

Compared with the prior art, the lamination table device provided by the embodiment of the invention has the advantages that the heights of the first pressing component 24 and the second pressing component 25 can be adaptively changed according to the stacking height of materials (pole pieces and membranes) by arranging the first lifting component 22 and the second lifting component, so that the first pressing component 24 and the second pressing component 25 can better press the materials, the positioning effect is improved, the first driving component 241 simultaneously drives the first pressing claw component 242 and the second pressing claw component 243 to be close to or away from each other, the consistency of the response of the first pressing claw component 242 and the second pressing claw component 243 can be improved, the second driving component 251 simultaneously drives the third pressing claw component 252 and the fourth pressing claw component 253 to be close to or away from each other, the consistency of the response of the third pressing claw component 252 and the fourth pressing claw component 253 can be improved, and then can improve the precision of location to and also make the structure of lamination platform device compacter, reduced occupation space.

In one embodiment, as shown in fig. 10, the first driving assembly 241 includes a thirteenth driving member 2411, a first lead screw 2412, a first lead screw nut 2413, a second lead screw nut 2414 and a first mounting assembly 2415, wherein the first mounting assembly 2415 is disposed at the output end of the first lifting assembly 22; the first screw rod 2412 is rotatably connected to the first mounting assembly 2415, the first screw rod 2412 is provided with a first screw thread section and a second screw thread section, the rotating direction of the first screw thread section is opposite to that of the second screw thread section, the first screw rod nut 2413 is in threaded connection with the first screw thread section, the first pressing claw assembly 242 is fixedly arranged on the first screw rod nut 2413, the second screw rod nut 2414 is in threaded connection with the second screw thread section, the second pressing claw assembly 243 is fixedly arranged on the second screw rod nut 2414, and the thirteenth driving member 2411 is used for driving the first screw rod 2412 to rotate so as to drive the first screw rod nut 2413 and the second screw rod nut 2414 to be close to or away from each other, so that the first pressing claw assembly 242 and the second pressing claw assembly 243 are close to or away from each other. By arranging the first thread section and the second thread section with opposite rotation directions on the first screw rod 2412, when the first screw rod 2412 rotates, the first screw rod nut 2413 and the second screw rod nut 2414 can be close to or away from each other, and by the structure, the first pressing claw assembly 242 and the second pressing claw assembly 243 can be close to or away from each other without arranging a plurality of driving pieces, so that the overall structure of the first driving assembly 241 is more compact, and meanwhile, the consistency of the movement response of the first pressing claw assembly 242 and the second pressing claw assembly 243 is improved.

In an embodiment, the thirteenth driving component 2411 adopts a third motor, the first mounting component 2415 includes a first side plate, a fifth screw seat and a third motor frame, the first side plate is fixedly disposed at an output end of the first lifting component 22, the fifth screw seat and the third motor frame are fixedly disposed on the first side plate, the first screw 2412 is rotatably connected to the fifth screw seat, the third motor is fixed on the first side plate through the third motor frame, a motor shaft of the third motor is connected to the first screw 2412, and certainly, a transmission between the motor shaft of the third motor and the first screw 2412 can be performed through a synchronous pulley structure.

In one embodiment, as shown in fig. 10, the first pressing claw assembly 242 includes a first fixing assembly 2421, a seventeenth driving element 2422 and a first pressing claw 2423, the first fixing assembly 2421 is disposed at the output end of the first driving assembly 241, the seventeenth driving element 2422 is disposed on the first fixing assembly 2421, and the first pressing claw 2423 is disposed at the output end of the seventeenth driving element 2422; the seventeenth driving part 2422 is used for driving the first pressing claw 2423 to press the material. Specifically, the first fixing element 2421 is fixedly connected to the first screw nut 2413.

The second pressing jaw assembly 243 includes a second fixing assembly 2431, an eighteenth driving member 2432 and a second pressing jaw 2433, the second fixing assembly 2431 is disposed at the output end of the first driving assembly 241, the eighteenth driving member 2432 is disposed on the second fixing assembly 2431, and the second pressing jaw 2433 is disposed at the output end of the eighteenth driving member 2432; the eighteenth driving member 2432 is used for driving the second pressing claw 2433 to press the material. Specifically, the second fixing assembly 2431 is fixedly connected to the second lead screw nut 2414.

Preferably, a first guide rail assembly is arranged on the first side plate, and the first fixing assembly 2421 and the second fixing assembly 2431 are slidably arranged on the first side plate through the first guide rail assembly, so that the movement stability of the first pressing claw assembly 242 and the second pressing claw assembly 243 can be improved.

In an embodiment, the seventeenth driving element 2422 and the eighteenth driving element 2432 may adopt a push rod cylinder, and the first pressing claw 2423 and the second pressing claw 2433 are driven by the push rod cylinder to press the material.

In an embodiment, as shown in fig. 9, the first lifting assembly 22 includes a fifteenth driving element 221, a first screw seat 222, a third screw 223 and a fifth screw nut 224, the first screw seat 222 is disposed on the mounting base plate 21, the third screw 223 is vertically disposed and rotatably connected to the first screw seat 222, the fifth screw nut 224 is threadedly connected to the third screw 223, the first mounting assembly 2415 is fixedly connected to the fifth screw nut 224, the fifteenth driving element 221 is configured to drive the third screw 223 to rotate so as to drive the fifth screw nut 224 to lift, and further drive the first mounting assembly 2415 to lift, so that the first pressing claw assembly 242 and the second pressing claw assembly 243 can lift.

The fifteenth driving element 221 may adopt a fourth motor, and a motor shaft of the fourth motor and the third screw rod 223 may be driven by a synchronous pulley structure.

In an embodiment, the structure of the second driving assembly may be similar to that of the first driving assembly 241, and the second driving assembly 251 includes a fourteenth driving member, a second lead screw, a third lead screw nut, a fourth lead screw nut, and a second mounting assembly, and the second mounting assembly is disposed at the output end of the second lifting assembly; the second lead screw rotates to be connected on the second installation component, the second lead screw has a third thread section and a fourth thread section, the turning direction of the third thread section is opposite to that of the fourth thread section, the third lead screw nut is in threaded connection with the third thread section, the third pressing claw component 252 is fixedly arranged on the third lead screw nut, the fourth lead screw nut is in threaded connection with the fourth thread section, the fourth pressing claw component 253 is fixedly arranged on the fourth lead screw nut, the fourteenth driving part is used for driving the second lead screw to rotate so as to drive the third lead screw nut and the fourth lead screw nut to be close to or keep away from each other, and therefore the third pressing claw component 252 and the fourth pressing claw component 253 are close to or keep away from each other.

In an embodiment, the third pressing claw assembly 252 may have a structure similar to that of the first pressing claw assembly 242, and the third pressing claw assembly 252 includes a third fixing assembly, a nineteenth driving member and a third pressing claw, the third fixing assembly is disposed at the output end of the second driving assembly 251, the nineteenth driving member is disposed on the third fixing assembly, and the third pressing claw is disposed at the output end of the nineteenth driving member; the nineteenth driving piece is used for driving the third pressing claw to compact the material; specifically, the third fixing component is fixedly connected with the third lead screw nut.

The fourth pressing claw assembly 253 may have a structure similar to that of the second pressing claw assembly 243, and the fourth pressing claw assembly 253 includes a fourth fixing assembly, a twenty driving member and a fourth pressing claw, the fourth fixing assembly is disposed at the output end of the second driving assembly 251, the twentieth driving member is disposed on the fourth fixing assembly, and the fourth pressing claw is disposed at the output end of the twentieth driving member; the twentieth driving piece is used for driving the fourth pressing claw to press the material. Specifically, the fourth fixing assembly is fixedly connected with the fourth lead screw nut.

In an embodiment, the nineteenth driving part and the twentieth driving part can adopt push rod cylinders, and the third pressing claw and the fourth pressing claw are driven by the push rod cylinders to press the material.

In an embodiment, the structure of the second lifting assembly may be similar to that of the first lifting assembly 22, the second lifting assembly includes a sixteenth driving member, a second screw seat, a fourth screw and a sixth screw nut, the second screw seat is disposed on the mounting base plate 21, the fourth screw is vertically disposed and rotatably connected to the second screw seat, the sixth screw nut is threadedly connected to the fourth screw, the second mounting assembly is fixedly connected to the sixth screw nut, the sixteenth driving member is configured to drive the fourth screw to rotate so as to drive the sixth screw nut to lift, and then the second mounting assembly is driven to lift so as to enable the third pressing claw assembly 252 and the fourth pressing claw assembly 253 to lift.

In an embodiment, as shown in fig. 11, the lamination table apparatus further includes a third lifting assembly 26, the third lifting assembly 26 is used for driving the lamination table 23 to lift; the third lifting assembly 26 includes a twenty-first driving element 261, a third screw rod seat 262, a fifth screw rod 263 and a seventh screw nut 264, the third screw rod seat 262 is disposed on the installation bottom plate 21, the fifth screw rod 263 is vertically disposed and rotatably connected to the third screw rod seat 262, the seventh screw nut 264 is threadedly connected to the fifth screw rod 263, the seventh screw nut 264 is fixedly connected to the lamination table 23, the twenty-first driving element 261 is used for driving the fifth screw rod 263 to rotate so as to drive the seventh screw nut 264 to lift, and then the lamination table 23 is lifted to adapt to a battery cell with a continuous lamination thickness.

In one embodiment, the twenty-first driving element 261 is a fifth motor, and a motor shaft of the fifth motor is connected with the fifth screw rod 263 through a coupler.

In one embodiment, as shown in fig. 8, the lamination table apparatus further includes a third driving assembly 27 for driving the mounting base plate 21 to move horizontally, the third driving assembly 27 includes a twenty-second driving member 271, a fourth lead screw seat 272, a sixth lead screw 273 and an eighth lead screw nut 274, the fourth lead screw seat 272 is disposed on the frame 20 of the lamination machine, the sixth lead screw 273 is rotatably connected to the fourth lead screw seat 272, the eighth lead screw nut 274 is threadedly connected to the sixth lead screw 273, the eighth lead screw nut 274 is fixedly connected to the mounting base plate 21, the twenty-second driving member 271 is used for driving the sixth lead screw 273 to rotate so as to drive the eighth lead screw nut 274 to move horizontally, and then drive mounting plate 21 horizontal migration to make the subassembly of setting on mounting plate 21 of lamination platform device can switch back and forth at the different stations of lamination machine, in order to make things convenient for the preparation of lamination electricity core.

In one embodiment, the twenty-second driving element 271 employs a sixth motor, and a motor shaft of the sixth motor is connected to the sixth lead screw 273 by a coupling.

Preferably, the mounting base plate 21 is slidably connected to the frame 20 of the laminating machine through a guide rail assembly, so that the mounting base plate 21 slides on the frame 20 more stably.

In one embodiment, the first sheet moving device 4 is used for moving the positive electrode sheets, the second sheet moving device 5 is used for moving the negative electrode sheets, the first sheet moving device 4 comprises a twenty-third driving piece and a moving plate, the moving plate is provided with a first vacuum chuck, and the twenty-third driving piece is used for driving the moving plate to move, so that the first vacuum chuck can convey the positive electrode sheets to each station (detection station, lamination station) from the discharging device where the positive electrode sheets are placed.

The second sheet moving device 5 comprises a twenty-fourth driving part and a transfer assembly, a second vacuum chuck is arranged on the transfer assembly, and the twenty-fourth driving part is used for driving the transfer assembly to move, so that the second vacuum chuck can convey the negative sheets to all stations (detection stations and lamination stations) from the discharging device with the negative sheets placed on the discharging device.

In an embodiment, as shown in fig. 12, the lamination machine further comprises a detection and righting device 9; the detection and righting device 9 comprises a waste collection assembly 91, a detection table 92, a detection CCD and a sixth driving piece 94, wherein the detection table 92 is arranged at the output end of the sixth driving piece 94, the detection CCD is arranged on the detection table 92 and used for detecting whether a pole piece (a positive pole piece or a negative pole piece) placed on the detection table 92 is qualified or not and whether the position of the pole piece is inclined or not, the sixth driving piece 94 is used for driving the detection table 92 to rotate so as to righting the inclined pole piece placed on the detection table 92, and the waste collection assembly 91 is used for collecting unqualified pole pieces. For example, taking the positive electrode plate as an example, the first plate moving device 4 moves the positive electrode plate to the detection table 92, and if the detection CCD detects that the positive electrode plate is damaged or has a bevel, the waste pole pieces are collected by the waste collection assembly 91, if the detection CCD detects that the positive pole piece is qualified and detects that the position of the positive pole piece placed on the detection table 92 is inclined, the positive plate is sucked up from the detection table 92 by the first plate moving device 4, the detection table 92 is driven by the sixth driving element 94 to deflect by a certain angle, the deflected angle is consistent with the inclined angle of the positive plate, then the positive plate is placed on the detection table 92 again by the first plate moving device 4, the position where the positive plate is placed on the detection table 92 is the correct position, the detection table 92 is driven by the sixth driving element 94 to reset, and the positive plate with the corrected position is transferred to the lamination table device by the first plate moving device 4 to be subjected to the lamination process.

In one embodiment, as shown in fig. 12, the detection and correction device 9 further includes a twenty-fifth driving element 93, a twenty-sixth driving element 95, a first installation plate 96 and a second installation plate 97, the first installation plate 96 is disposed at the output end of the twenty-fifth driving element 93, the twenty-sixth driving element 95 is disposed on the first installation plate 96, the second installation plate 97 is slidably disposed on the first installation plate 96, the sixth driving element 94 is disposed on the second installation plate 97, the twenty-fifth driving element 93 is used for driving the first installation plate 96 to move horizontally, the twenty-sixth driving element 95 is used for driving the second installation plate 97 to move horizontally, the direction of movement of the first installation plate 96 is perpendicular to the direction of movement of the second installation plate 97, the adjustment of the position of the detection table 92 in the horizontal direction can be realized through the twenty-fifth driving element 93 and the twenty-sixth driving element 95, and the correction of obliquely placed pole pieces is further optimized. The sixth driving member 94, the twenty-fifth driving member 93 and the twenty-sixth driving member 95 can be driven by motors.

In an embodiment, the waste collecting assembly 91 includes a fixing frame 911, a waste box 912 and a twenty-seventh driving element 913, the twenty-seventh driving element 913 is disposed on the fixing frame 911, and is used for driving the waste box 912 to move to above the detection table 92, for example, when the positive plate is detected by the detection CCD to be damaged or has a bevel, the positive plate is sucked up from the detection table 92 by the first plate moving device 4, the waste box 912 is driven by the twenty-seventh driving element 913 to move to above the detection table 92, the damaged or beveled positive plate is placed on the waste box 912 by the first plate moving device 4, and the waste box 912 is driven by the twenty-seventh driving element 913 to be away from the detection table 92, so as to collect waste. The twenty-seventh driving element 913 may be driven by a rodless cylinder or a motor.

In one embodiment, the detection and recovery devices 9 are provided in two, one detection and recovery device 9 is matched with the first sheet moving device 4 for detecting and recovering the positive electrode sheets and collecting the damaged or folded positive electrode sheets, and the other detection and recovery device 9 is matched with the second sheet moving device 5 for detecting and recovering the negative electrode sheets and collecting the damaged or folded negative electrode sheets.

In one embodiment, as shown in fig. 13 and 14, the membrane winding device 7 includes a flattening assembly 71, a first clamping assembly 72, a second clamping assembly 73 and a driving rotation assembly 74, wherein the first clamping assembly 72 is used for clamping a first end of the cell delivered from the lamination stage device 2, and the second clamping assembly 73 is used for clamping a second end of the cell delivered from the lamination stage device 2; the driving rotating assembly 74 is used for driving the first clamping assembly 72 and the second clamping assembly 73 to rotate so as to drive the battery core to rotate, so that the membrane material roll 13 is coated on the periphery of the battery core, and after the membrane material roll 13 is cut by the membrane cutting device 6, the fracture of the membrane material roll 13 is flattened on the battery core by the flattening assembly 71.

In an embodiment, as shown in fig. 15 and 16, the lamination machine further includes a side adhesive applying device 10, the side adhesive applying device 10 includes an adhesive applying clamp assembly 101, an adhesive applying frame 102, a seventh driving member 103, and an adhesive feeding assembly 104, the adhesive applying clamp assembly 101 is disposed on the adhesive applying frame 102, the adhesive applying clamp assembly 101 is configured to clamp the battery cell, which is conveyed by the battery cell taking device 8 and is coated with the separator on the periphery, the adhesive feeding assembly 104 attaches the termination adhesive tape to the battery cell, and the seventh driving member 103 is configured to drive the adhesive applying frame 102 to rotate so that the adhesive feeding assembly 104 can attach the termination adhesive tape around the battery cell.

In one embodiment, as shown in fig. 15, the tape clip assembly 101 includes a twenty-eighth driving member 1011, a twenty-ninth driving member 1012, an upper pressing member 1013 and a lower pressing member 1014, wherein the upper pressing member 1013 is disposed at an output end of the twenty-eighth driving member 1011, the lower pressing member 1014 is disposed at an output end of the twenty-ninth driving member 1012, the twenty-eighth driving member 1011 drives the upper pressing member 1013 downward, and the twenty-ninth driving member 1012 drives the lower pressing member 1014 upward, so that the upper pressing member 1013 and the lower pressing member 1014 clamp a cell together. Wherein the twenty-eighth driving element 1011 and the twenty-ninth driving element 1012 may be push rod cylinders.

In one embodiment, as shown in fig. 16, the adhesive feeding assembly 104 includes an adhesive placing tray 1041, an adhesive tape cutting assembly 1042, an adhesive clamping head 1043, an adhesive tape mounting plate 1044, an eighth driving member 1045, a movable frame 1046 and a ninth driving member 1047;

the adhesive placing disc 1041, the adhesive tape cutting assembly 1042 and the adhesive clamping head 1043 are all arranged on the adhesive tape mounting plate 1044, the adhesive placing disc 1041 is used for placing a termination adhesive tape, and one end of the termination adhesive tape is pulled to the adhesive clamping head 1043; the tape mounting plate 1044 is arranged on the movable frame 1046 in a manner of moving up and down, the movable frame 1046 is arranged at an output end of the ninth driving member 1047, the ninth driving member 1047 is used for driving the movable frame 1046 to approach the battery cell so as to enable the tape clamping head 1043 to approach the battery cell, and the eighth driving member 1045 is used for driving the tape mounting plate 1044 to move up and down so as to enable the termination tape at the tape clamping head 1043 to be attached to the battery cell; after the adhesive tape is attached to the battery core, the adhesive tape cutting assembly 1042 cuts off the adhesive tape.

The working process of the preferred embodiment of the invention is as follows: one end of a membrane material roll 13 in the membrane unreeling device 1 is wound on a membrane driving assembly 14 and is pressed on a lamination table 23 by a first pressing claw assembly 242 and a second pressing claw assembly 243, a layer of membrane is flatly laid on the lamination table 23 through the membrane driving assembly 14, a positive plate is transferred to a detection and correction device 9 by a first plate transferring device 4 for detection and correction, a good positive plate is transferred to the membrane on the lamination table 23 by the first plate transferring device 4, the positive plate and the membrane are pressed by a third pressing claw assembly 252 and a fourth pressing claw assembly 253 together, the first pressing claw assembly 242 and a second pressing claw assembly 243 are loosened, the membrane driving assembly 14 continuously drives the membrane to cover the positive plate, a negative plate is transferred to the detection and correction device 9 by a second plate transferring device 5 for detection and correction, and a good negative plate is laminated on the positive plate by a second plate transferring device 5 (the membrane is separated between the positive plate and the negative plate), the first pressing claw assembly 242 and the second pressing claw assembly 243 press the negative pole piece, the positive pole piece and the diaphragm on the negative pole piece, the third pressing claw assembly 252 and the fourth pressing claw assembly are loosened, the diaphragm driving assembly 14 continues to drive the diaphragm to enable the diaphragm to cover the negative pole piece, the above steps are repeated, the negative pole piece and the positive pole piece are stacked alternately, the diaphragm is used for isolating and coating the negative pole piece and the positive pole piece in a zigzag mode, when the negative pole piece and the positive pole piece are stacked to a certain thickness, the battery core (the negative pole piece, the positive pole piece and the diaphragm) is moved to the diaphragm winding device 7 by the battery core device 8, the battery core is driven to rotate by the diaphragm winding device 7 to enable the diaphragm material roll 13 to be coated on the periphery of the battery core, the diaphragm cutting device 6 cuts the diaphragm material roll 13 to obtain the battery core coated with the diaphragm on the periphery, the battery core is moved to the side adhesive tape pasting device 10 by the battery core cutting device 8, and finally blanking is carried out.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A laminating machine is characterized by comprising a diaphragm unreeling device, a laminating table device, a material placing device, a first film moving device, a second film moving device, a diaphragm cutting device, a diaphragm reeling device and a core taking device; the number of the discharging devices is two, one discharging device is used for placing the positive plate, and the other discharging device is used for placing the negative plate;

the membrane unreeling device comprises an automatic belt splicing assembly and two unreeling assemblies, wherein one unreeling assembly is arranged above the other unreeling assembly; one unwinding assembly is used for placing a currently used material roll, and the other unwinding assembly is used for placing a standby membrane material roll; the first sheet moving device and the second sheet moving device are used for alternately placing the positive sheets and the negative sheets on the sheet stacking table device, and the currently used separator material roll is coated on the positive sheets and the negative sheets so as to separate the stacked positive sheets and the stacked negative sheets from each other to form a primary battery cell;

the battery cell taking device is used for moving the primary battery cell on the lamination table device to the diaphragm winding device, the diaphragm winding device drives the primary battery cell to rotate so that a diaphragm material roll is coated on the periphery of the primary battery cell, and the diaphragm cutting device cuts the diaphragm material roll to obtain a battery cell coated with a diaphragm on the periphery;

the pressing assembly is used for pressing a section of the membrane material roll positioned above downwards to attach a section of the membrane material roll positioned above to a section of the membrane material roll positioned below, and the first cutter assembly cuts off the membrane material roll positioned above after the section of the membrane material roll positioned above is attached to the section of the membrane material roll positioned below;

2. The laminating machine according to claim 1, wherein said membrane unwinding device further comprises a membrane driving assembly, one end of said currently used membrane material roll is wound through said membrane driving assembly and positioned on said lamination table device, said membrane driving assembly wraps the membrane material roll thereon on the positive plate and the negative plate in a zigzag manner, and separates the stacked positive plate and the stacked negative plate in cooperation with the alternate stacking of the positive plate and the negative plate.

3. The laminating machine according to claim 2, wherein the membrane driving assembly comprises a first driving member, a driving bottom plate and a first material passing roller, the driving bottom plate is arranged at the output end of the first driving member, the first material passing roller is rotatably arranged on the driving bottom plate, and the membrane material is wound on the first material passing roller; the first driving piece is used for driving the driving bottom plate to horizontally move;

4. The laminating machine of claim 1, wherein the first cutter assembly includes a first cutter disposed at an output end of a third drive member for driving the first cutter to cut the roll of separator material;

5. The laminating machine of claim 1, wherein the automatic splicing assembly further comprises a second cutter assembly and a third cutter assembly, the second cutter assembly being located on a side of the pressing assembly facing away from the unwinding assembly; the third cutter assembly is positioned on one side, away from the unreeling assembly, of the upper pressing assembly; the second cutter assembly is used for cutting off a section of the membrane material roll which is positioned above and bypasses the pressing assembly after the section of the membrane material roll which is positioned above bypasses the pressing assembly; after a section of the underlying roll of separator material has bypassed the upper pressure assembly, the third cutter assembly is used to cut off the section of the underlying roll of separator material that has bypassed the upper pressure assembly.

6. The lamination machine according to claim 1, wherein the lamination station apparatus includes a mounting base plate, a first lifting assembly, a second lifting assembly, a lamination station, a first compression assembly, and a second compression assembly; the lamination table is arranged on the mounting bottom plate and used for bearing the pole piece and the diaphragm; the first lifting assembly is used for driving the first pressing assembly to lift, and the second lifting assembly is used for driving the second pressing assembly to lift;

the first pressing assembly comprises a first driving assembly, a first pressing claw assembly and a second pressing claw assembly, the first driving assembly is used for driving the first pressing claw assembly and the second pressing claw assembly to move close to or away from each other, and the first pressing claw assembly and the second pressing claw assembly are used for pressing the first end of the pole piece and the first end of the diaphragm;

7. The laminator according to claim 1, wherein the laminator further comprises a detection and righting device; the detection and righting device comprises a waste collection assembly, a detection platform, a detection CCD and a sixth driving piece, wherein the detection platform is arranged at the output end of the sixth driving piece, the detection CCD is arranged on the detection platform, the detection CCD is used for detecting whether a pole piece placed on the detection platform is qualified or not and whether the position of the pole piece is inclined or not, the sixth driving piece is used for driving the detection platform to rotate so as to enable the pole piece placed on the detection platform to be righted, and the waste collection assembly is used for collecting unqualified pole pieces.

8. The lamination machine according to claim 1, wherein the membrane winding device includes a flattening assembly, a first clamping assembly for clamping a first end of the cell conveyed from the lamination table device, a second clamping assembly for clamping a second end of the cell conveyed from the lamination table device, and a driving rotation assembly; the driving rotating assembly is used for driving the first clamping assembly and the second clamping assembly to rotate so as to drive the battery core to rotate, so that the membrane material roll is coated on the periphery of the battery core, the membrane cutting device is used for cutting off the membrane material roll, and the flattening assembly is used for flattening a fracture of the membrane material roll on the battery core.

9. The laminating machine according to claim 1, further comprising a side adhesive applying device, wherein the side adhesive applying device comprises an adhesive applying clamp assembly, an adhesive applying frame, a seventh driving member and an adhesive feeding assembly, the adhesive applying clamp assembly is arranged on the adhesive applying frame, the adhesive applying clamp assembly is used for clamping a battery cell which is conveyed by the battery cell taking device and is coated with a diaphragm on the periphery, the adhesive feeding assembly is used for attaching a termination adhesive tape to the battery cell, and the seventh driving member is used for driving the adhesive applying frame to rotate so that the adhesive feeding assembly can attach the termination adhesive tape to the periphery of the battery cell.

10. The laminating machine of claim 9, wherein the glue feeding assembly comprises a glue placing disc, a tape cutting assembly, a glue clamping head, a tape mounting plate, an eighth driving member, a moving frame and a ninth driving member;