CN217768474U - Lamination device and lamination machine - Google Patents

Abstract

The utility model provides a lamination device and lamination machine belongs to lithium battery manufacturing equipment technical field, include: a lamination mechanism; the annular conveying line is coplanar with the lamination mechanism or is arranged at intervals in the vertical direction, and a feeding position and a discharging position are arranged on the annular conveying line; the first transfer mechanism is movably arranged between the lamination mechanism and the feeding position; and the second transfer mechanism is arranged corresponding to the material discharging position and is suitable for transferring the battery cell at the material discharging position to a subsequent procedure. The utility model provides a pair of lamination device, the electric core that accomplishes the lamination uses first transport mechanism to transport to feeding position department, transport to ejection of compact position through the transport of annular transfer chain again to use second transport mechanism to roll out electric core from ejection of compact position department, the unloading of the electric core of being convenient for, and arrange annular transfer chain and lamination mechanism in vertical direction, utilize vertical space, space utilization has been improved, annular transfer chain can arrange according to lamination mechanism's shape, and is rationally distributed.

Description

Lamination device and lamination machine

Technical Field

The utility model relates to a lithium battery manufacturing equipment technical field, concretely relates to lamination device and lamination machine.

Background

The lamination technology is one of the lithium ion battery manufacturing technologies, and the speed and the precision of the lamination technology directly determine the productivity of a lithium ion production line and the manufacturing cost of a battery cell. After the pole pieces and the diaphragms are laminated on the laminating table, the pole pieces and the diaphragms need to be transferred to a hot pressing station for hot pressing operation, and the hot pressing station corresponding to the number of the laminating tables needs to be arranged due to the fact that the hot pressing station is slow in beat. In the prior art, the negative side of the lamination table is usually used as a blanking position, and when the lamination table is provided with a plurality of lamination tables, a long-stroke gantry manipulator needs to be arranged on the negative side of the lamination tables, and the electric core is transferred through the cooperation of the gantry manipulator. Therefore, the blanking transfer operation of the battery cell is inconvenient, and the lamination device integrally occupies a rectangular space due to the arrangement of the long-stroke gantry manipulator, so that the occupied area is large and the space utilization rate is low.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the defect that lamination device electricity core unloading transportation operation among the prior art is inconvenient, space utilization is low to a lamination device and lamination machine are provided.

In order to solve the above problem, the utility model provides a lamination device, include: a lamination mechanism; the annular conveying line is coplanar with the lamination mechanism or is arranged at intervals in the vertical direction, and a feeding position and a discharging position are arranged on the annular conveying line; a first transfer mechanism movably disposed between the lamination mechanism and the feed location; and the second transfer mechanism corresponds to the discharge position setting and is suitable for transferring the battery core at the discharge position to a subsequent process.

Optionally, the annular conveying line comprises an annular line body and a clamping tool, the clamping tool is arranged on the annular line body, and the annular line body is suitable for driving the clamping tool to rotate circularly along an annular direction.

Optionally, the clamping tool is provided with a plurality of clamping tools.

Optionally, the annular wire body is suitable for circularly rotating along an annular direction, and the clamping tool is fixedly arranged on the annular wire body; or the annular line body is fixedly arranged, a driving part is arranged on the annular line body and/or the clamping tool, and the driving part is suitable for driving the clamping tool to circularly flow along the annular line body.

Optionally, the lamination mechanism comprises: the device comprises a positive electrode deviation rectifying structure and a negative electrode deviation rectifying structure, wherein the positive electrode deviation rectifying structure and the negative electrode deviation rectifying structure are arranged along a first direction; the two stacking structures are respectively arranged on two sides of the positive electrode deviation rectifying structure and the negative electrode deviation rectifying structure along a first direction, the two stacking structures are arranged in a staggered mode to respectively correspond to the positive electrode deviation rectifying structure or the negative electrode deviation rectifying structure, and each stacking structure can be switched between the positive electrode deviation rectifying structure and the negative electrode deviation rectifying structure; the feeding structures are arranged correspondingly to the anode deviation rectifying structure or the cathode deviation rectifying structure respectively, and the feeding structures are movably arranged between the anode deviation rectifying structure and the stacking platform structure, and between the cathode deviation rectifying structure and the stacking platform structure.

Optionally, first transfer mechanism includes two transfer manipulators, be provided with two on the annular conveying line the feeding position, one of them transfer manipulator is in corresponding one fold platform structure and one change between the feeding position, another transfer manipulator is in another fold platform structure and another change between the feeding position.

Optionally, the transfer manipulator is arranged on one side of the stacking platform structure, which is far away from the positive pole deviation rectifying structure and the negative pole deviation rectifying structure, and is close to the negative pole deviation rectifying structure.

Optionally, the positive electrode rectification structure comprises a positive electrode conveying belt, a positive electrode rectification driving part and a positive electrode plate detection unit, the positive electrode plate detection unit is arranged corresponding to the conveying surface of the positive electrode conveying belt, the positive electrode plate detection unit is electrically connected with the positive electrode rectification driving part, the positive electrode rectification driving part is in transmission connection with the positive electrode conveying belt, and the positive electrode rectification driving part is suitable for driving the positive electrode conveying belt to rotate in a horizontal plane; the negative pole structure of rectifying includes negative pole conveyer belt, negative pole deviation rectifying drive division and negative pole piece detecting element, negative pole piece detecting element with the transport plane of negative pole conveyer belt corresponds the setting, negative pole piece detecting element with the negative pole deviation rectifying drive division electric connection, the negative pole deviation rectifying drive division with the transmission of negative pole conveyer belt is connected, the negative pole deviation rectifying drive division is suitable for the drive the negative pole conveyer belt is at horizontal rotation.

The utility model also provides a lamination machine, including foretell lamination device.

Optionally, the laminating machine further comprises a hot pressing device, wherein the hot pressing device is arranged on one side of the laminating device and corresponds to the discharging position.

Optionally, the hot pressing device includes a plurality of hot pressing mechanisms arranged in an array, the second transfer mechanism is a gantry robot, and the gantry robot extends along the plurality of hot pressing mechanisms.

Optionally, the lamination machine further includes an anode plate feeding line and a cathode plate feeding line, and the output end of the anode plate feeding line and the output end of the cathode plate feeding line are both arranged corresponding to the lamination mechanism.

The utility model has the advantages of it is following:

1. the utility model provides a pair of lamination device, the electric core of accomplishing the lamination uses first transport mechanism to transport to the feeding position department of annular transfer chain, transport to ejection of compact position through the annular transfer chain again, and use second transport mechanism to roll out electric core from ejection of compact position department, the unloading of the electric core of being convenient for, and arrange annular transfer chain and lamination mechanism on vertical direction, utilize vertical space, the space utilization has been improved, the annular transfer chain can be arranged according to the shape of lamination mechanism, and is rationally distributed.

2. The utility model provides a pair of lamination device utilizes the centre gripping frock to carry out the centre gripping to electric core in transportation process fixed, guarantees electric core right stability in transportation process.

3. The utility model provides a pair of lamination device, two pile a structure dislocation set, and can carry out position conversion between the structure of rectifying at the positive pole and the structure of rectifying of negative pole, two pile a structure can crisscross respectively from the positive pole structure of rectifying and the structural pole piece that acquires of rectifying of negative pole, therefore, through setting up one set of structure of rectifying, two lamination when having realized piling a structure, and set up two material loading structures and satisfy two material loadings that pile a structure, the material loading structure stroke is short, the energy consumption is low, the material loading is efficient, therefore, the lamination efficiency of lamination device is high.

4. The utility model provides a pair of lamination device is provided with a plurality of with the centre gripping frock, unloading and transportation when satisfying a plurality of electric core.

5. The utility model provides a pair of lamination device transports the manipulator through setting up two, carries out the unloading to two electric cores of folding a structure respectively and shifts, improves unloading efficiency.

6. The utility model provides a pair of lamination device will transport the manipulator and be close to the negative pole structure setting of rectifying, with the lamination technology looks adaptation of electric core, rationally distributed.

7. The utility model provides a pair of lamination device, when positive plate detecting element detected positive plate angular position and had the error, the anodal drive positive conveyer belt of drive portion of rectifying of control rotated to drive the positive plate adjustment to preset position, when negative plate detecting element detected negative plate angular position and had the error, the drive portion drive negative pole conveyer belt of rectifying of control negative pole rotated to drive the adjustment of negative pole piece to preset position.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 shows a perspective view of a lamination device provided in embodiment 1 of the present invention;

FIG. 2 is a top view of FIG. 1;

fig. 3 is a schematic view showing the overall structure of the lamination mechanism provided in embodiment 1 of the present invention;

fig. 4 shows a schematic structural diagram of a lamination mechanism provided in embodiment 1 of the present invention in a first state;

fig. 5 shows a schematic structural diagram of a lamination mechanism provided in embodiment 1 of the present invention in a second state;

fig. 6 shows a schematic structural diagram of a positive electrode rectification structure and a negative electrode rectification structure provided in embodiment 1 of the present invention;

fig. 7 shows a schematic structural diagram of a lamination stacking machine provided in embodiment 2 of the present invention.

Description of reference numerals:

100. a lamination mechanism; 110. a positive electrode rectification structure; 111. a positive electrode conveyor belt; 112. a positive electrode deviation rectifying driving part; 113. a positive plate detection unit; 120. a negative electrode deviation rectifying structure; 121. a negative electrode conveyor belt; 122. a negative electrode deviation rectifying driving part; 123. a negative plate detection unit; 130. a stacking structure; 140. a feeding structure; 141. a material taking part; 150. swinging the material discharging structure; 200. an annular conveyor line; 210. an annular wire body; 211. a straight portion; 212. a steering section; 220. clamping a tool; 300. a first transfer mechanism; 310. a transfer robot; 400. a second transfer mechanism; 500. a hot-pressing device; 600. a positive plate feeding line; 700. and a negative plate feeding line.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device 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 "third" 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, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

One embodiment of a lamination arrangement, as shown in fig. 1-6, includes: the lamination mechanism 100, the annular conveying line 200, the first transfer mechanism 300 and the second transfer mechanism 400. Annular transfer chain 200 sets up with lamination mechanism 100 coplane or interval setting in vertical direction, is provided with into material level and ejection of compact position on the annular transfer chain 200, and first transfer mechanism 300 is movably to be set up between lamination mechanism 100 and the material level of feeding, and second transfer mechanism 400 corresponds the setting of material level of going out to can shift the electric core of material level department to the back process.

The electric core that accomplishes the lamination uses first transport mechanism 300 to transport to the feeding position department of annular transfer chain 200, transport to the material level of discharging through the transport of annular transfer chain 200 again, and use second transport mechanism 400 to roll out electric core from the material level department, the unloading of the electric core of being convenient for, and arrange annular transfer chain 200 and lamination mechanism 100 in vertical direction, utilize vertical space, space utilization has been improved, annular transfer chain 200 can arrange according to the shape of lamination mechanism 100, and is rationally distributed.

As shown in fig. 1 to 6, the lamination mechanism 100 includes a positive electrode rectification structure 110, a negative electrode rectification structure 120, a lamination table structure 130, and a feeding structure 140. The positive electrode rectification structure 110 and the negative electrode rectification structure 120 are arranged along a first direction, a positive plate can be placed on the positive electrode rectification structure 110, and a negative plate can be placed on the negative electrode rectification structure 120. It is provided with two to fold a structure 130, and two fold a structure 130 and locate anodal structure 110 and the negative pole structure 120 of rectifying along the both sides of first direction to two fold a structure 130 dislocation set with respectively with anodal structure 110 and the negative pole structure 120 of rectifying corresponding, every fold a structure 130 and can rectify the conversion between structure 110 and the negative pole structure 120 of rectifying, every fold a structure 130 promptly and can follow the first direction reciprocating motion. The number of the feeding structures 140 is two, the two feeding structures 140 correspond to the positive electrode deviation rectifying structure 110 or the negative electrode deviation rectifying structure 120 respectively, and the feeding structures 140 are movably disposed between the positive electrode deviation rectifying structure 110 and the stacking structure 130, and between the negative electrode deviation rectifying structure 120 and the stacking structure 130.

In the present embodiment, as shown in fig. 4 and 5, the feeding structures 140 are moved in the second direction, which is perpendicular to the first direction, and the moving directions of the two feeding structures 140 are opposite at each lamination.

It should be noted that, referring to fig. 4 and 5, the first direction refers to a left-right direction in the drawings, and the second direction refers to an up-down direction in the drawings. The two stacking structures 130 are respectively located on the upper side and the lower side of the straight line where the positive electrode deviation rectifying structure 110 and the negative electrode deviation rectifying structure 120 are located, as shown in fig. 4, when the stacking structure 130 located on the upper side is arranged corresponding to the positive electrode deviation rectifying structure 110, the stacking structure 130 located on the lower side is arranged corresponding to the negative electrode deviation rectifying structure 120, as shown in fig. 5, when the stacking structure 130 located on the upper side is arranged corresponding to the negative electrode deviation rectifying structure 120, the stacking structure 130 located on the lower side is arranged corresponding to the positive electrode deviation rectifying structure 110. Referring to fig. 4 and 5, when the feeding structure 140 on the left side moves downward, the feeding structure 140 on the right side moves upward.

Two pile platform structure 130 dislocation set, and can carry out position conversion between the positive pole structure 110 of rectifying and the negative pole structure 120 of rectifying, two pile platform structure 130 can crisscross respectively from the positive pole structure 110 of rectifying and the negative pole structure 120 of rectifying acquire the pole piece, therefore, through setting up one set of structure of rectifying, two lamination when folding platform structure 130 have been realized, and set up two material loading structures 140 and satisfy two material loadings that fold platform structure 130, material loading structure 140 stroke is short, the energy consumption is low, the material loading is efficient, therefore, the lamination efficiency of lamination device is high.

In the present embodiment, as shown in fig. 3 to 5, each feeding structure 140 includes two material taking parts 141, the two material taking parts 141 are arranged along the second direction, and the two material taking parts 141 can reciprocate along the second direction. Specifically, referring to fig. 4 and fig. 5, a feeding structure 140 located on the left side is taken as an example for explanation, as shown in fig. 4, when the material taking part 141 located on the upper side performs lamination corresponding to the stacking platform structure 130 on the upper side, the material taking part 141 located on the lower side performs material taking on the positive electrode deviation rectifying structure 110, after the lamination of the material taking part 141 located on the upper side is completed, the two stacking platform structures 130 are switched from the position of fig. 4 to the position of fig. 5, and at the same time, the feeding structure 140 moves along the second direction, so that the material taking part 141 located on the lower side moves to the stacking platform structure 130 corresponding to the lower side, and the material taking part 141 located on the upper side performs material taking on the positive electrode deviation rectifying structure 110.

When one material taking part 141 takes materials from the positive pole deviation rectifying structure 110 or the negative pole deviation rectifying structure 120 and transports the materials to the stacking platform structure 130, the other material taking part 141 can move synchronously to the positive pole deviation rectifying structure 110 or the negative pole deviation rectifying structure 120 to take materials, so that after the two stacking platform structures 130 move in a staggered mode, the other material taking part 141 can transport pole pieces to the other stacking platform structure 130, therefore, stacking and taking can be carried out synchronously by arranging the two material taking parts 141, no idle stroke exists in the material loading structure 140, energy consumption is reduced, and material loading efficiency is improved.

In this embodiment, the feeding structure 140 is a manipulator, and the material taking part 141 is an adsorption structure, that is, two adsorption structures are provided on one manipulator.

Of course, the feeding structure 140 may also be provided with only one material taking part 141, and the material taking part 141 takes materials from the deviation correcting structure, moves to the corresponding stacking platform structure 130 for stacking, returns to the deviation correcting structure to take materials again, and moves to the other stacking platform structure 130 for stacking.

In this embodiment, the feeding structure 140 further includes a lifting portion, and the lifting portion can drive the two material taking portions 141 to move vertically and synchronously. Through setting up the portion of going up and down, make two material portions 141 be higher than anodal structure 110, the negative pole structure 120 of rectifying and fold a structure 130 back of rectifying in vertical, remove along the second direction again, avoid material portions 141 and anodal structure 110 of rectifying, the negative pole structure 120 of rectifying and fold a structure 130 and produce the interference.

In this embodiment, the lamination mechanism 100 further includes two driving structures, two driving structures are disposed corresponding to the two lamination table structures 130, respectively, and the driving structures can drive the lamination table structures 130 corresponding thereto to reciprocate along the first direction.

In this embodiment, the driving structure is a motor and screw combination.

Of course, the driving structure may be other linear driving structures, such as a linear motor.

As shown in fig. 1 and fig. 6, the positive electrode deviation rectifying structure 110 includes a positive electrode conveying belt 111, a positive electrode deviation rectifying driving portion 112 and a positive electrode plate detecting unit 113, the positive electrode plate detecting unit 113 is disposed corresponding to the conveying surface of the positive electrode conveying belt 111, the positive electrode plate detecting unit 113 is electrically connected to the positive electrode deviation rectifying driving portion 112, the positive electrode deviation rectifying driving portion 112 is in transmission connection with the positive electrode conveying belt 111, and the positive electrode deviation rectifying driving portion 112 can drive the positive electrode conveying belt 111 to rotate in a horizontal plane; the negative pole structure 120 of rectifying includes negative pole conveyer belt 121, negative pole drive division 122 and negative pole piece detecting element 123 of rectifying, and negative pole piece detecting element 123 corresponds the setting with the transport plane of negative pole conveyer belt 121, and negative pole piece detecting element 123 and negative pole drive division 122 electric connection of rectifying, negative pole drive division 122 and negative pole conveyer belt 121 transmission are connected, and negative pole drive division 122 of rectifying can drive negative pole conveyer belt 121 and rotate in the horizontal plane.

When the positive plate detecting unit 113 detects that there is an error in the angular position of the positive plate, the positive deviation rectifying driving unit 112 is controlled to drive the positive conveyer belt 111 to rotate so as to drive the positive plate to adjust to a predetermined position, and when the negative plate detecting unit 123 detects that there is an error in the angular position of the negative plate, the negative deviation rectifying driving unit 122 is controlled to drive the negative conveyer belt 121 to rotate so as to drive the negative plate to adjust to a predetermined position.

As shown in fig. 6, the positive electrode conveyor belt 111 includes a positive electrode belt body and a positive electrode belt body driving portion, the positive electrode belt body driving portion is in transmission connection with the positive electrode belt body, and the positive electrode sheet detecting unit 113 is electrically connected with the positive electrode belt body driving portion; the negative electrode conveyer belt 121 includes a negative electrode belt body and a negative electrode belt body driving portion, the negative electrode belt body driving portion is in transmission connection with the negative electrode belt body, and the negative electrode sheet detecting unit 123 is electrically connected with the negative electrode belt body driving portion.

When the positive plate detection unit 113 detects that an error exists in the conveying position of the positive plate on the positive plate belt body, the driving speed of the positive plate belt body driving part to the positive plate belt body is controlled to drive the positive plate to be adjusted to a preset position, and when the negative plate detection unit 123 detects that an error exists in the conveying position of the negative plate on the negative plate belt body, the driving speed of the negative plate belt body driving part to the negative plate belt body is controlled to drive the negative plate to be adjusted to the preset position.

It is worth to explain that, when the conveying speed of the positive pole belt body is slow and the positive pole piece is located backward, the driving part of the positive pole belt body is controlled to accelerate the driving of the positive pole belt body so that the positive pole piece moves to a preset position in an accelerating way, and when the conveying speed of the positive pole belt body is fast and the positive pole piece is located forward, the driving part of the positive pole belt body is controlled to slow down the driving of the positive pole belt body so that the positive pole piece moves to reach the preset position in a slowing way; when the conveying speed of the negative pole belt body is low and the negative pole piece is located at the back, the driving part of the negative pole belt body is controlled to accelerate the driving of the negative pole belt body so that the negative pole piece moves to the preset position in an accelerated mode, and when the conveying speed of the negative pole belt body is high and the negative pole piece is located at the front, the driving part of the negative pole belt body is controlled to decelerate the driving of the negative pole belt body so that the negative pole piece moves slowly to reach the preset position.

In this embodiment, as shown in fig. 3 to fig. 5, the positive electrode deviation rectifying structure 110 is provided with a positive electrode deviation rectifying position, the negative electrode deviation rectifying structure 120 is provided with a negative electrode deviation rectifying position, each stacking platform structure 130 includes a stacking platform, each stacking platform is provided with a stacking position, each material taking portion 141 takes a positive electrode plate from the positive electrode deviation rectifying position and places the positive electrode plate at the stacking position, and takes a negative electrode plate from the negative electrode deviation rectifying position and places the negative electrode plate at the stacking position at each time. Therefore, the two lamination stations can simultaneously perform lamination of two cells.

It should be noted that, in other alternative embodiments, a plurality of positive electrode deviation rectifying positions are arranged on each positive electrode deviation rectifying structure 110 along the first direction (the conveying direction of the positive electrode conveying belt 111), a plurality of negative electrode deviation rectifying positions are arranged on each negative electrode deviation rectifying structure 120 along the first direction (the conveying direction of the negative electrode conveying belt 121), each stacking platform structure 130 includes a stacking platform, a plurality of stacking positions are arranged on each stacking platform along the first direction, a plurality of positive electrode deviation rectifying positions and a plurality of negative electrode deviation rectifying positions are arranged corresponding to the plurality of stacking positions, and the material taking part 141 can simultaneously transport positive electrode plates at the plurality of positive electrode deviation rectifying positions to the plurality of stacking positions and transport negative electrode plates at the plurality of negative electrode deviation rectifying positions to the plurality of stacking positions. Or, a plurality of positive pole deviation rectifying positions are arranged on each positive pole deviation rectifying structure 110 along the first direction (the conveying direction of the positive pole conveying belt 111), a plurality of negative pole deviation rectifying positions are arranged on each negative pole deviation rectifying structure 120 along the first direction (the conveying direction of the negative pole conveying belt 121), each lamination platform structure 130 comprises a plurality of lamination platforms, each lamination platform is provided with a lamination position, the plurality of lamination platforms correspond to the plurality of positive pole deviation rectifying positions and the plurality of negative pole deviation rectifying positions, the material taking part 141 can simultaneously transfer the positive pole pieces on the plurality of positive pole deviation rectifying positions, and the negative pole pieces on the plurality of negative pole deviation rectifying positions to the plurality of lamination platforms. Therefore, through the above two methods, in a lamination process, on one lamination table structure 130, lamination of a plurality of battery cells can be performed simultaneously, that is, a plurality of battery cells are produced simultaneously, so that production efficiency is improved.

It should be further noted that if one positive electrode deviation rectifying structure 110 includes n positive electrode deviation rectifying positions, one negative electrode deviation rectifying structure 120 includes n negative electrode deviation rectifying positions, and one lamination stacking structure 130 includes n lamination positions, one lamination stacking structure 130 can simultaneously perform lamination of n cells, and then, since the lamination mechanism 100 includes two lamination structures 130, the lamination mechanism 100 can simultaneously perform lamination of 2n cells.

In this embodiment, the lamination device further includes two swing material placing structures 150, the swing material placing structures 150 are provided with two, the two swing material placing structures 150 are arranged corresponding to the two lamination platform structures 130, and the diaphragms can reciprocate along the first direction by arranging the swing material placing structures 150 to unreel the diaphragms.

In the present embodiment, the positive plate detection unit 113 and the negative plate detection unit 123 are both CCD cameras, and the positive correction driving part 112 and the negative correction driving part 122 are both rotary motors.

When the lamination mechanism 100 of the present embodiment is used to laminate the positive electrode tab, the separator, and the negative electrode tab, please refer to fig. 4 and 5, the positive electrode tab is disposed on the positive electrode deviation rectifying structure 110, the negative electrode tab is disposed on the negative electrode deviation rectifying structure 120, the material taking part 141 located on the upper side of the left feeding structure 140 is referred to as "upper left material taking part 141", the material taking part 141 located on the lower side of the left feeding structure 140 is referred to as "lower left material taking part 141", the material taking part 141 located on the upper side of the right feeding structure 140 is referred to as "upper right material taking part 141", and the material taking part 141 located on the lower side of the right feeding structure 140 is referred to as "lower right material taking part 141". The specific process is as follows:

step (one): with the position shown in fig. 4 as the initial position of the lamination table, when lamination is performed on two lamination tables for the first time, the left lower material taking part 141 does not take the positive plate, the right upper material taking part 141 takes the negative plate, the two lamination tables and the two feeding structures 140 are switched from the position shown in fig. 4 to the position shown in fig. 5, the right upper material taking part 141 places the negative plate on the lamination table on the upper side, and the lamination table on the lower side does not place the positive plate (of course, the negative plate is not placed);

step (II): in the state shown in fig. 5, the upper left material taking part 141 takes the positive plate, the lower right material taking part 141 takes the negative plate, the two lamination tables and the two feeding structures 140 are switched from the position shown in fig. 5 to the position shown in fig. 4, the upper left material taking part 141 places the positive plate on the lamination table located on the upper side (one negative plate is already on the lamination table), and the lower right material taking part 141 places the negative plate on the lamination table located on the lower side (the lamination table is the first lamination);

step (three): then, in the state shown in fig. 4, the left lower material taking part 141 takes the positive plate, the right upper material taking part 141 takes the negative plate, the two lamination stages and the two feeding structures 140 are switched from the position shown in fig. 4 to the position shown in fig. 5, the left lower material taking part 141 places the positive plate on the lamination stage at the lower side, and the right upper material taking part 141 places the negative plate on the lamination stage at the upper side; this step is repeated to complete the lamination.

It should be noted that, when the two lamination tables perform position conversion each time, the swinging material placing structure 150 places materials on the separators, so that the separators are laid on the lamination tables and between the positive plates and the negative plates.

It should be further noted that, in the process of manufacturing the battery cell by lamination, it is usually required to stack the negative electrode plates on the lamination table first.

Of course, in other alternative embodiments, the positive electrode plates may be disposed on both the positive electrode deviation rectifying structure 110 and the negative electrode deviation rectifying structure 120, and the negative electrode composite material roll (with the negative electrode plate disposed between two layers of membrane material strips) is fed by using the swing feeding structure 150; alternatively, the positive electrode plate is arranged on the positive electrode deviation rectifying structure 110, and the negative electrode composite sheet (the negative electrode plate is arranged between two layers of diaphragms) is arranged on the negative electrode deviation rectifying structure 120, so that the swinging material placing structure 150 is not required. Above two kinds of modes, directly use compound piece or compound material area to carry out the lamination, can stack pole piece and diaphragm simultaneously in once stacking the in-process, improved lamination efficiency.

As shown in fig. 1 and 2, the annular conveying line 200 includes an annular line body 210 and a clamping tool 220, the clamping tool 220 is disposed on the annular line body 210, and the annular line body 210 is adapted to drive the clamping tool 220 to rotate circularly along an annular direction. Utilize centre gripping frock 220 to carry out centre gripping fixed to electric core in transportation process, guarantee electric core stability right in transportation process.

In this embodiment, as shown in fig. 1 and fig. 2, the clamping tool 220 is provided with a plurality of parts, so that the cells can be simultaneously discharged and transferred.

It is worth to say that the annular wire body 210 and the clamping tool 220 include the following two embodiments: firstly, the annular wire body 210 can rotate circularly along the annular direction, the clamping tool 220 is fixedly arranged on the annular wire body 210, and the clamping tool 220 is driven to rotate in the rotating process of the annular wire body 210; secondly, the annular wire body 210 is fixedly arranged, a driving part is arranged on the annular wire body 210 and/or the clamping tool 220, and the driving part can drive the clamping tool 220 to circularly flow along the annular wire body 210.

It should be further noted that, in the second embodiment, the driving component may be a roller disposed along the endless wire body 210, and the clamping tool 220 is driven to move by using rolling friction between the clamping tool 220 and the roller during rotation of the roller. Of course, the driving component may be other components capable of driving the clamping tool 220 to move, and the clamping tool 220 and the annular wire body 210 may be connected in a sliding manner.

In the present embodiment, as shown in fig. 1 and 2, the annular wire body 210 has a square structure, the annular wire body 210 includes four straight portions 211 and four turning portions 212, the four straight portions 211 are respectively disposed along four sides of the directional structure, and the four turning portions 212 are partially disposed at four corners of the directional structure. By providing the turning part 212, the clamping tool 220 can be transferred between two adjacent linear parts 211 (the two adjacent linear parts 211 are arranged perpendicular to each other, and the flow direction is perpendicular).

It should be noted that the annular wire body 210 may be an island-shaped wire body which is continuously arranged, or may be formed by splicing a plurality of wire bodies.

In the present embodiment, as shown in fig. 1 and 2, the first transfer mechanism 300 includes two transfer robots 310, and two feeding positions are provided on the endless conveyor line 200, wherein one transfer robot 310 switches between the corresponding one of the stacking table structures 130 and the one feeding position, and the other transfer robot 310 switches between the other stacking table structure 130 and the other feeding position. Through setting up two transport manipulator 310, carry out the unloading to two electric cores of folding on the platform structure 130 respectively and shift, improve unloading efficiency.

In this embodiment, as shown in fig. 1 and fig. 2, the transferring robot 310 is disposed on one side of the stacking platform structure 130 away from the positive electrode deviation rectifying structure 110 and the negative electrode deviation rectifying structure 120, and is disposed close to the negative electrode deviation rectifying structure 120 so as to be adapted to the lamination process of the battery cell, and the layout is reasonable.

It is worth to be noted that, the laminated cell needs to realize a structure that the negative electrode wraps the positive electrode, so that the first pole piece and the last pole piece are both negative pole pieces in the lamination production process, and therefore, the blanking of the cell after lamination is usually on the negative side.

It should be further noted that, referring to fig. 2, two transfer robots 310 are respectively disposed at the left and right sides and near the upper side.

In the present embodiment, as shown in fig. 1, the endless conveyor line 200 is disposed below the stacking structure 130, the positive electrode conveyor belt 111, and the negative electrode conveyor belt 121.

Of course, the endless conveyor line 200 may be disposed coplanar with the stacking platform structure 130, the positive electrode conveyor belt 111, and the negative electrode conveyor belt 121, or the endless conveyor line 200 may be disposed above the stacking platform structure 130, the positive electrode conveyor belt 111, and the negative electrode conveyor belt 121.

When using the lamination device of this embodiment, after 100 laminations of lamination mechanism are accomplished, use transportation manipulator 310 to transport the electric core on the lamination bench to the centre gripping frock 220 of annular transfer chain 200 feed position department, at annular transfer chain 200 circulation pivoted in-process, centre gripping frock 220 drives electric core and removes to ejection of compact position department, and second transport mechanism 400 transports the electric core of ejection of compact position department to hot pressing mechanism in and carries out hot pressing.

Example 2

One embodiment of a lamination machine, as shown in fig. 7, includes the lamination apparatus of example 1. The laminating machine further comprises a hot-pressing device 500, wherein the hot-pressing device 500 is arranged on one side of the laminating device and corresponds to the discharging position. The second transfer mechanism 400 transfers the battery cells located at the material discharge position to the hot-pressing device 500 for hot pressing.

In this embodiment, as shown in fig. 7, the hot pressing device 500 includes a plurality of hot pressing mechanisms arranged in a row, and the second transfer mechanism 400 is a gantry robot, which is extended along the plurality of hot pressing mechanisms. Utilize the longmen manipulator to transport the electricity core respectively to a plurality of hot pressing mechanism in carry out the hot pressing, improve hot pressing efficiency.

As shown in fig. 6, the lamination machine further includes a positive plate feeding line 600 and a negative plate feeding line 700, an output end of the positive plate feeding line 600 corresponds to the positive deviation rectifying structure 110, and an output end of the negative plate feeding line 700 corresponds to the negative deviation rectifying structure 120.

It should be noted that the positive electrode plate feeding line 600 drives the positive electrode plate to be conveyed from the upper surface to the lower surface of the positive electrode plate feeding line 600, and fall onto the positive electrode deviation rectifying structure 110 from the lower surface of the positive electrode plate feeding line 600; the negative plate feeding line 700 drives the negative plates to be conveyed from the upper surface to the lower surface of the negative plate feeding line 700, and the negative plates fall onto the negative plate deviation rectifying structure 120 from the lower surface of the negative plate feeding line 700.

According to the above description, the present patent application has the following advantages:

1. the battery cell is discharged and transported by the annular conveying lines, a vertical space is utilized, the space utilization rate is improved, the annular conveying lines can be arranged according to the shape of the lamination mechanism, and the layout is reasonable;

2. the group of deviation correcting mechanisms can be provided with two stacking mechanisms which can stack the sheets at the same time, the stroke of the feeding mechanism is short, and the sheet stacking efficiency is high;

3. the feeding mechanism has no idle stroke and high feeding efficiency.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications derived therefrom are intended to be within the scope of the invention.

Claims (12)

1. A lamination assembly, comprising:

a lamination mechanism (100);

the annular conveying line (200) is coplanar with the lamination mechanism (100) or is arranged at intervals in the vertical direction, and a feeding position and a discharging position are arranged on the annular conveying line (200);

a first transfer mechanism (300) movably disposed between the lamination mechanism (100) and the feed location;

and the second transfer mechanism (400) corresponds to the discharging position setting and is suitable for transferring the battery cell at the discharging position to a post process.

2. The lamination device according to claim 1, wherein the annular conveying line (200) comprises an annular line body (210) and a clamping tool (220), the clamping tool (220) is disposed on the annular line body (210), and the annular line body (210) is adapted to drive the clamping tool (220) to rotate circularly along an annular direction.

3. The lamination device according to claim 2, wherein the clamping tooling (220) is provided in several numbers.

4. The lamination device according to claim 2 or 3, wherein said annular wire body (210) is adapted to rotate circularly, said clamping tool (220) being fixedly arranged on said annular wire body (210); or it is that,

the annular wire body (210) is fixedly arranged, a driving part is arranged on the annular wire body (210) and/or the clamping tool (220), and the driving part is suitable for driving the clamping tool (220) to circularly flow along the annular wire body (210).

5. A lamination arrangement according to any one of claims 1-3, wherein the lamination mechanism (100) comprises:

the device comprises a positive pole rectifying structure (110) and a negative pole rectifying structure (120), wherein the positive pole rectifying structure (110) and the negative pole rectifying structure (120) are arranged along a first direction;

the two stacking structures (130) are respectively arranged on two sides of the positive electrode deviation rectifying structure (110) and the negative electrode deviation rectifying structure (120) along a first direction, the two stacking structures (130) are arranged in a staggered mode to respectively correspond to the positive electrode deviation rectifying structure (110) or the negative electrode deviation rectifying structure (120), and each stacking structure (130) can be switched between the positive electrode deviation rectifying structure (110) and the negative electrode deviation rectifying structure (120);

the feeding structures (140) are arranged in two, the two feeding structures (140) are respectively arranged corresponding to the positive pole deviation rectifying structure (110) or the negative pole deviation rectifying structure (120), and the feeding structures (140) are movably arranged between the positive pole deviation rectifying structure (110) and the stacking platform structure (130), between the negative pole deviation rectifying structure (120) and the stacking platform structure (130).

6. The lamination device according to claim 5, wherein the first transfer mechanism (300) comprises two transfer robots (310), two of said feed locations being provided on the endless conveyor line (200), one of said transfer robots (310) switching between a corresponding one of said lamination station structures (130) and one of said feed locations, the other of said transfer robots (310) switching between the other of said lamination station structures (130) and the other of said feed locations.

7. The lamination device according to claim 6, wherein the transfer robot (310) is disposed on a side of the stacking platform structure (130) away from the positive rectification structure (110) and the negative rectification structure (120) and is disposed close to the negative rectification structure (120).

8. The laminating device according to claim 5, wherein the positive electrode deviation rectifying structure (110) comprises a positive electrode conveying belt (111), a positive electrode deviation rectifying driving portion (112) and a positive electrode plate detecting unit (113), the positive electrode plate detecting unit (113) is arranged corresponding to the conveying surface of the positive electrode conveying belt (111), the positive electrode plate detecting unit (113) is electrically connected with the positive electrode deviation rectifying driving portion (112), the positive electrode deviation rectifying driving portion (112) is in transmission connection with the positive electrode conveying belt (111), and the positive electrode deviation rectifying driving portion (112) is suitable for driving the positive electrode conveying belt (111) to rotate in a horizontal plane;

the negative pole structure of rectifying (120) includes negative pole conveyer belt (121), negative pole drive division (122) and negative pole piece detecting element (123), negative pole piece detecting element (123) with the delivery surface of negative pole conveyer belt (121) corresponds the setting, negative pole piece detecting element (123) with negative pole drive division (122) electric connection of rectifying, negative pole drive division (122) of rectifying with negative pole conveyer belt (121) transmission is connected, negative pole drive division (122) of rectifying is suitable for the drive negative pole conveyer belt (121) rotation in the horizontal plane.

9. A lamination machine, characterized in that it comprises a lamination device according to any one of claims 1 to 8.

10. The laminator according to claim 9, wherein the laminator further comprises a hot press (500), the hot press (500) being disposed on a side of the lamination device and corresponding to the discharge position.

11. The laminating machine according to claim 10, wherein the hot pressing device (500) comprises a plurality of hot pressing mechanisms arranged in an array, and the second transfer mechanism (400) is a gantry robot extending along the plurality of hot pressing mechanisms.

12. The lamination machine according to claim 9, further comprising a positive pole piece feeding line (600) and a negative pole piece feeding line (700), wherein an output end of the positive pole piece feeding line (600) and an output end of the negative pole piece feeding line (700) are both arranged corresponding to the lamination mechanism (100).

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