CN219326306U - Delivering and stacking machine and adsorption device thereof - Google Patents

Abstract

The utility model discloses a stacking machine and an adsorption device thereof, wherein the adsorption device comprises a pole piece adsorption mechanism and a pole lug adsorption mechanism; the lug adsorption mechanism comprises a gas distribution bin and a support assembly, wherein the gas distribution bin is communicated with the negative pressure system, and the support assembly is connected with the gas distribution bin and is provided with an air passage communicated with the inner cavity of the gas distribution bin; the supporting component further comprises an adsorption supporting part which can be adapted to the tab to be adsorbed, and the air passage extends to penetrate through the adsorption supporting part so as to form an adsorption port in the adsorption supporting part; the support component is at least arranged at the position of the lug adsorption mechanism corresponding to the lug side end part. By the aid of the scheme, when the suction operation is performed, the lug side end can be reliably adsorbed through the supporting and adsorbing function provided by the adsorbing and supporting part, and the flat posture can be kept. Therefore, when the feeding and stacking clamping jaw moves towards the lug and the pole piece, the lug can be prevented from being folded by touching the lug, and technical guarantee is provided for ensuring the yield and the installability of products.

Description

Delivering and stacking machine and adsorption device thereof

Technical Field

The utility model relates to the technical field of lithium ion battery processes, in particular to a stacking machine and an adsorption device thereof.

Background

In the prior art, the pole piece and the pole lug are sucked by the traditional stacking machine through the sucking disc, and are transferred to the sheet combining position, based on the soft characteristic of the pole piece, the two side end parts of the pole lug are inclined to turn up and turn down in the sucking process, when the stacking clamping jaw is used for executing clamping operation to move towards the pole lug and the pole piece, the pole lug part with deformation tendency touches the clamping jaw head, the pole lug is turned over, and the thermal runaway risk of the product is extremely large.

In view of this, structural optimization of the adsorption device is needed to overcome the tab folding defect.

Disclosure of Invention

The utility model aims at providing a send and fold machine and adsorption equipment thereof, on satisfying the basis that the pole piece absorbed the function, can effectively avoid the utmost point ear to turn over the problem of rolling over, for the technical guarantee that guarantees that product yield and mountability provided.

The adsorption device provided by the embodiment of the application comprises a pole piece adsorption mechanism and a pole lug adsorption mechanism; the lug adsorption mechanism comprises a gas distribution bin and a support assembly, wherein the gas distribution bin is communicated with the negative pressure system, and the support assembly is connected with the gas distribution bin and is provided with an air passage communicated with the inner cavity of the gas distribution bin; the supporting component further comprises an adsorption supporting part which can be adapted to the tab to be adsorbed, and the air passage extends to penetrate through the adsorption supporting part so as to form an adsorption port in the adsorption supporting part; the support component is at least arranged at the position of the lug adsorption mechanism corresponding to the lug side end part.

Compared with the prior art, the technical scheme has the following advantages: by applying the adsorption device provided by the embodiment of the application, based on the negative pressure established by the negative pressure system, when the suction operation is executed, the lug side end can be reliably adsorbed through the support adsorption function provided by the adsorption support part, and the flat gesture can be kept. Therefore, when the feeding and stacking clamping jaw moves towards the lug and the pole piece, the lug can be prevented from being folded due to the fact that the lug is touched.

Optionally, the support assembly includes a first support assembly and a second support assembly; the first supporting component is positioned at the first end of the gas distribution bin and is arranged corresponding to one side end part of the tab; the second supporting component is positioned at the second end of the gas distribution bin and is arranged corresponding to the end part of the other side of the tab.

Optionally, the first support component and the second support component each have an auxiliary air port and are respectively communicated with the corresponding air passages.

Optionally, each of the first support component and the second support component comprises a plurality of plate-shaped bodies arranged at intervals, and the air passage is formed between the adjacent plates; the adsorption supporting parts are formed at the bottom plate edges of the plates, corresponding adsorption ports are formed between the bottom plate edges of two adjacent plates, and the auxiliary air ports are formed between the outer plate edges of the adjacent plates.

Optionally, the second support component is further located in a middle region of the gas separation cartridge.

Optionally, the plate-shaped body of the first support assembly is deformable and switchable between a support position and an avoidance position, and is configured to: when the first stacking clamping jaw is inserted and moved, the clamping jaw positioned above the lug can push the sheet-shaped body of the first supporting component to deform and switch to the avoiding position; and a clearance part is arranged between the plate-shaped bodies of the second supporting components, and the clearance part is arranged corresponding to the second stacking clamping jaw.

Optionally, the plate-shaped body of the first supporting component is parallel to the inserting and moving direction of the first stacking clamping jaw, so that the clamping jaw is laterally deformed and switched to the avoiding position.

Optionally, the plate-shaped body of the first supporting component is perpendicular to the inserting and moving direction of the first stacking clamping jaw, so that the clamping jaw deforms inwards to be switched to the avoiding position.

Optionally, the plate-shaped body of the first support assembly is hinged with the gas distributing bin, so as to swing and switch between a support position and an avoidance position, and is configured to: when the first stacking clamping jaw is inserted and moved, the clamping jaw above the lug can push the sheet-shaped body of the first supporting component to swing and switch to the avoiding position; and a clearance part is arranged between the plate-shaped bodies of the second supporting components, and the clearance part is arranged corresponding to the second stacking clamping jaw.

Optionally, a baffle is further included, the baffle at least partially covering the auxiliary gas port to form a restriction to the flow through the auxiliary gas port.

Optionally, the baffle is fixedly arranged on the gas separation bin, or the baffle is hinged with the gas separation bin.

Optionally, a plurality of interfaces for communicating with a negative pressure system are configured on the gas separation bin, and a plurality of gas separation strips which are arranged in parallel are arranged in the gas separation bin.

Optionally, the gas separation strips are arranged along the length direction of the tab.

The utility model also provides a stacking machine which comprises an adsorption device for adsorbing the pole pieces and the pole lugs, wherein the adsorption device adopts the adsorption device.

Optionally, the device further comprises at least two groups of stacking clamping jaws, wherein the head part of the upper clamping jaw of at least one group of stacking clamping jaws is gradually folded.

Drawings

Fig. 1 is a schematic overall structure of an adsorption device according to an embodiment of the present disclosure;

FIG. 2 is a schematic view showing the use state of the adsorption apparatus shown in FIG. 1;

FIG. 3 is a view in the direction A of FIG. 2;

FIG. 4 is a schematic view of the adsorption device shown in FIG. 2 in correspondence with pole pieces and tabs;

FIG. 5 is a schematic view of the fitting relationship between the suction device and the stacking jaw shown in FIG. 1;

FIG. 6 is a view in the B direction of FIG. 5;

FIG. 7 is a schematic view of the gas separation cartridge shown in FIG. 1;

FIG. 8 is a schematic diagram of the overall structure of another adsorption device according to an embodiment of the present disclosure;

FIG. 9 is a schematic view of the fitting relationship between the suction device and the stacking jaw shown in FIG. 8;

fig. 10 is a schematic overall structure of another adsorption apparatus according to an embodiment of the present disclosure.

In the figure:

adsorption apparatus 100, adsorption apparatus 100a, adsorption apparatus 100b;

the lug adsorption mechanism 10, the gas distribution bin 1, the interface 11, the gas distribution strip 12, the support component 2, the first support component 21a, the second support component 22, the clearance part 221, the adsorption port 23, the auxiliary gas port 24 and the baffle 3;

a pole piece adsorption mechanism 20;

a negative pressure system 30, a pipeline 301 and a vacuum pump 302;

tab 401, pole piece 402;

a first set of stack feeding jaws 50a, a second set of stack feeding jaws 50b.

Detailed Description

In order to make the technical solution of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings and specific embodiments.

In the related art, during the lamination operation process of the stacking machine, when the pole pieces and the pole lugs are sucked through the suckers based on the soft characteristics of the pole pieces, the two side end parts of the pole lugs tend to turn up and turn down. When the feeding and stacking clamping jaw is displaced towards the lug and the pole piece, the deformed lug part touches the head of the clamping jaw, and the lug is folded. This is a significant risk of thermal runaway of the product.

Based on this, this application embodiment provides an adsorption equipment, including pole piece adsorption equipment and utmost point ear adsorption equipment, both establish respectively through negative pressure system and adsorb with negative pressure to be used for adsorbing pole piece and utmost point ear respectively. The lug adsorption mechanism comprises a gas distribution bin and a support assembly, wherein the gas distribution bin is communicated with the negative pressure system, and the support assembly is connected with the gas distribution bin and is provided with an air passage communicated with the inner cavity of the gas distribution bin; the supporting component further comprises an adsorption supporting part which can be adapted to the tab to be adsorbed, and the air passage extends to penetrate through the adsorption supporting part to form an adsorption port; the support component is at least arranged at the position of the lug adsorption mechanism corresponding to the lug side end part.

Based on the negative pressure established by the negative pressure system, when the suction operation is executed, the lug side end can be reliably adsorbed by the support adsorption function provided by the adsorption support part, and the flat posture can be kept. Therefore, when the feeding and stacking clamping jaw moves towards the lug and the pole piece, the lug can be prevented from being folded due to the fact that the lug is touched.

For a better understanding of the technical solutions and technical effects of the present application, specific embodiments are described in detail below with reference to the accompanying drawings. Referring to fig. 1 and fig. 2, fig. 1 is a schematic overall structure diagram of an adsorption apparatus according to an embodiment of the present application, and fig. 2 is a schematic usage state diagram of the adsorption apparatus shown in fig. 1.

As shown in the figure, the adsorption device 100 includes a tab adsorption mechanism 10 and a pole piece adsorption mechanism 20, wherein the tab adsorption mechanism 10 and the pole piece adsorption mechanism 20 are connected with a negative pressure system 30, and negative pressure is established through the negative pressure system 300 to adsorb and connect the tab 401 and the pole piece 402 as a whole respectively.

The lug adsorption mechanism 10 comprises a gas distribution bin 1 and a support assembly 2. Here, the top of the gas separation bin 1 has three connection positions, which are respectively communicated with the vacuum pump 302 through the pipeline 301 of the negative pressure system 30, so that a substantially uniform negative pressure state is formed in the gas separation bin 1. In a specific implementation, the gas distributing bin 1 is provided with interfaces 11 respectively communicated with the pipelines 301, and a plurality of other gas inlet positions can be configured, and the gas inlet positions can be specifically determined according to the overall design requirement of the equipment.

In this embodiment, the gas separation bins 1 are arranged along the length direction of the tab 401, and the formed adsorption area can substantially cover the tab. The support component 2 is located below the gas distributing bin 1, and an adsorption support portion for adapting to the tab 401 is formed at the bottom of the support component 2. As shown in connection with fig. 2, the support assembly 2 comprises a first support assembly 21 and a second support assembly 22.

Wherein, the first supporting component 21 is located at the first end of the gas distributing bin 1 and is arranged corresponding to one side end of the tab 401 so as to form reliable adsorption to the side end of the tab; correspondingly, the second support component 22 is located at the second end of the gas separation chamber 1 and is arranged corresponding to the other side end of the tab 401, and meanwhile, the second support component 22 is also located in the middle area of the gas separation chamber 1. Referring to fig. 3 and fig. 4 together, fig. 3 is a view of fig. 2 in a direction a, and fig. 4 is a schematic diagram of a correspondence relationship between the adsorption device shown in fig. 2 and the pole piece and the pole ear.

So set up, form reliable absorption through second supporting component 21 to tab opposite side tip and tab middle part, avoid the lamination in-process tab to turn over. It can be appreciated that the first support component 21 and the second support component 22 are at least disposed at the first end and the second end of the gas distribution chamber 1, so as to avoid deformation of the two ends of the tab 401 during the adsorption process.

In this embodiment, the first supporting component 21 and the second supporting component 22 are both in a plate-shaped structure, an air passage communicated with the inner cavity of the air distribution chamber 1 is formed between two adjacent plates, and an adsorption supporting portion adapted to the tab to be adsorbed is formed at the bottom plate edge of each plate, and a corresponding adsorption port 23 is formed between the bottom plate edges of two adjacent plates.

In other embodiments, the first support component 21 and the second support component 22 may also take different forms, for example, but not limited to, a single-piece structure and form corresponding ventilation channels.

To further accommodate the actual deployment position of the stacking jaw, the support assembly 2 may further provide a relief structural design. Referring to fig. 5, the fitting relationship between the suction device and the stack gripper shown in fig. 1 is shown. Without loss of generality, two sets of stacking clamping jaws are taken as an example for illustration, the first set of stacking clamping jaws 50a and the second set of stacking clamping jaws 50b comprise two clamping jaws and can be inserted and moved along the direction indicated by an arrow X in the drawing, and after the two clamping jaws of each set of stacking clamping jaws are respectively positioned on the upper side and the lower side of the lug 401, the lug 401 is clamped and then is moved along the direction indicated by the arrow Y in the drawing, so that stacking operation is performed.

In this embodiment, the first stack feeding jaw 50a is disposed corresponding to one side end portion of the tab 401, and the second stack feeding jaw 50b is disposed corresponding to the middle region of the tab 401. Accordingly, the support assemblies 2 are retracted at two respective positions.

Wherein, the sheet-shaped body of the first supporting component 21 can be changed between the supporting position and the avoiding position in a deformation way, and is configured as follows: when the first stacking clamping jaw 50a is inserted, the clamping jaw above the tab 401 can push the first supporting component 21 to deform and switch to the avoiding position, and store elastic deformation energy to reset to the supporting position. Here, when the plate-shaped body of the first supporting member 21 is located at the supporting position, an adsorption support at the corresponding position of the tab can be formed.

That is, by the deformable first support member 21, a relief space is provided that meets the insertion travel requirements of the first stack jaw 50 a. In this embodiment, the plate-shaped body of the first supporting component 21 is arranged parallel to the inserting and moving direction of the stacking clamping jaw, and can be deformed to the side of the first stacking clamping jaw 50a under the pressing and pushing action. Please refer to fig. 6, which is a view from direction B of fig. 5.

As shown in the drawing, each plate-shaped body of the first support assembly 21 is parallel to the inserting and moving direction of the stacking jaw, that is, is disposed along the inserting and moving direction of the stacking jaw, and also deforms to two sides respectively. The head of the upper clamping jaw of the first stacking clamping jaw 50a is gradually folded so as to be pushed to two sides while being pressed against each plate-shaped body, so that the operation accuracy is improved, and in other specific implementations, each plate-shaped body of the first supporting component 21 can also be deformed towards the same side of the clamping jaw under the pushing of the first stacking clamping jaw 50 a.

Here, the plate-shaped body of the first support member 21 may be made of different materials, such as, but not limited to, a spring plate made of a spring steel belt, or may be made of a plastic material. The plate-like body of the second support member 22 may be a plastic plate.

Further, for the spring plate made of the spring steel belt, the anti-abrasion plastic coating treatment can be integrally performed, so that the spring plate cannot rub against the tab to cause the tab abrasion in the process of being pushed to deform relative to the tab 401. In the concrete implementation, for the spring plate made of the spring steel belt, the bottom of the plate-shaped body can be coated with wear-resistant plastic, and the electrode lugs can be prevented from being worn.

The second support assembly 22 has a plate-shaped body with a space portion 221 disposed therebetween, and the space portion 221 is disposed opposite to the second set of stacking clamping jaws 50b. In this way, when the second stacking jaw 50b is inserted, the jaw located above the tab 401 may be inserted into the clearance portion 221 of the second support assembly 22. The space avoiding portion 221 of the second support assembly 22 is configured to be fixed in comparison with the space avoiding portion formed by deformation of the first support assembly 21.

It should be noted that, corresponding to the avoidance provided by the second stacking jaw 50b, the avoidance may also be provided by using the implementation manner of the first supporting component; in other words, the avoidance space for avoiding the second stacking jaw 50b may be switched to the avoidance position by pushing the upper jaw.

To create an even distribution of air flow, the tabs are further force balanced. In this embodiment, a plurality of gas distributing strips 12 are disposed in parallel in the gas distributing chamber 1, please refer to fig. 7, which is a schematic diagram of the gas distributing chamber shown in fig. 1. Here, fig. 7 is formed from the bottom view of the gas cartridge 1 to clearly illustrate the internal structure of the gas cartridge 1.

Referring to fig. 6 and 7, the plurality of air dividing strips 12 are staggered with the plate-shaped bodies of the first support component 21 and the second support component 22, so that a uniformly distributed negative pressure air flow can be formed at the adsorption port as a whole, and the adsorbed tab is stressed uniformly.

In addition, in order to further avoid suction marks on the tab surface on the basis of reliable suction of the tab, in this embodiment, auxiliary air ports 24 are formed between the outer side plate edges of the adjacent plate-like bodies of the first support member 21 and between the outer side plate edges of the adjacent plate-like bodies of the second support member 22. Based on the air inflow that auxiliary air port kept, send and fold behind the clamping jaw clamping tab, need not powerful broken vacuum, close the corresponding control gas circuit of negative pressure system 30, can realize the breaking away from of tab and pole piece, can effectively avoid forming the suction mark. Meanwhile, the tab can be prevented from being deformed by blowing.

The operation flow of the adsorption apparatus according to the present embodiment is briefly described as follows:

firstly, the negative pressure system 30 is started when the sheet is taken, the tab and the pole piece are absorbed by the tab absorbing mechanism 10 and the pole piece absorbing mechanism 20, and after the absorption is finished, the pole piece is moved to the sheet combining position.

Next, during the extending process of the stacking clamping jaw, the upper clamping jaw of the second group of stacking clamping jaws 50b is inserted and moved to the clearance part 221 of the second supporting component 22, the upper clamping jaw of the first group of stacking clamping jaws 50a is inserted and moved and pushes each plate-shaped body of the first supporting component 21 to deform, and the self-supporting position is switched to the clearance position; the upper clamping jaw inserted and moved above the tab can block the adsorption force while the bottom edge of each plate body of the first supporting component 21 is separated from the tab 401, so that the tab is separated from the suction force synchronously, and a stable clamping state is formed.

After the clamping jaw clamps the pole piece, the negative pressure system 30 is closed, and the whole pole piece can be separated from the adsorption device 100. The adsorption device 100 moves upward, and performs the next adsorption operation; the pole piece is clamped by the stacking clamping jaw and is conveyed to the lamination table. At the same time, after the adsorption device 100 moves up, each plate-shaped body of the first supporting component 21 can release elastic deformation energy and return to the supporting position.

It will be appreciated that the negative pressure system 30 may be implemented in accordance with an actual application scenario configuration, such as, but not limited to, providing a corresponding negative pressure environment for establishing a vacuum by a pneumatic suction gun based on a compressed air source.

In the foregoing embodiment, each plate-like body of the first support assembly is deformed to form the escape space toward both sides of the jaw by pushing the jaw on the first group of stacking jaws 50a, respectively. In other specific implementations, each plate-shaped body of the first support assembly may also be deformed along the insertion direction of the upper jaw to switch to the avoidance position. Referring to fig. 8 and fig. 9 together, fig. 8 is a schematic overall structure of another adsorption apparatus according to the embodiment of the application; fig. 9 is a schematic view illustrating the fitting relationship between the suction device and the stacking gripper shown in fig. 8. In order to clearly illustrate the differences and connections of the present solution with the previous embodiments, the same functional constitution or structure is shown with the same reference numerals in the drawings.

In this embodiment, the first support member 21a of the adsorption apparatus 100a adopts a different deformation avoiding method. Similarly, each plate-shaped body of the first supporting component 21a can be changed between a supporting position and a avoiding position in a deformation and avoiding direction which is the same as the inserting and moving direction of the stacking clamping jaw.

As shown in fig. 9, when the first stacking jaw 50a is inserted, the jaw located above the tab 401 may push the first supporting component 21a to deform inwards, and switch to the avoidance position.

In this embodiment, other functional configurations of the adsorption device 100a may be consistent with the embodiment depicted in fig. 1. And will not be described in detail here.

Furthermore, the avoidance function of the first support assembly is achieved in the foregoing embodiments by the deformable plate-like body. In other specific implementations, the plate-shaped body of the first supporting component may be hinged on the gas distributing bin, so as to switch between the supporting position and the avoiding position (not shown in the drawings) through the change of the swing angle of the plate-shaped body, and configured to: when the first stacking clamping jaw is inserted and moved, the clamping jaw above the lug can push each sheet-shaped body of the first supporting component to swing and switch to the avoiding position, and store gravitational potential energy to reset to the supporting position.

In order to further adjust the negative pressure intensity established by the gas dividing bin, the flow rate of the auxiliary gas port 24 can be adjusted. Referring to fig. 10, a schematic overall structure of another adsorption apparatus according to an embodiment of the present application is shown. In order to clearly illustrate the differences and connections of the present solution with the previous embodiments, the same functional constitution or structure is shown with the same reference numerals in the drawings.

In this embodiment, the adsorption device 100b includes a baffle 3, and the baffle 3 at least partially covers the auxiliary air port 24 of the support assembly 2 to form a restriction on the flow rate of the auxiliary air port 24 as required.

In a specific implementation, the baffle 3 may be fixedly disposed on the gas separation cartridge 1. In other specific implementations, the upper edge of the baffle 3 may be hinged to the gas separation chamber 1, as shown in fig. 10, and based on the hinged connection relationship, the swing angle of the baffle 3 may be changed relative to the adsorption port 23, so that the actual throughput may be adjusted as required.

In this embodiment, other functional configurations of the adsorption device 100b may be consistent with the embodiments described in fig. 1 and 8. And will not be described in detail here.

In addition to the adsorption device, the embodiment also provides a stacking machine, which comprises the adsorption device. It should be understood that the specific functions of the other components of the stacking machine are not core utility model points of the present application, and those skilled in the art can implement them based on the prior art, so they are not described herein.

It should be noted that the adsorption device provided in the embodiments of the present application may also be used in different battery manufacturing apparatuses, for example, but not limited to, apparatuses that need to provide an adsorption function, such as, for example, stacking, thermal compounding, and winding. Likewise, other functions of the corresponding battery manufacturing apparatus constitute core points of the utility model other than the present application, and those skilled in the art can implement them based on the prior art, so that the description thereof is omitted herein.

The ordinal terms "first" and "second" used herein are used only to describe the same functional constitution or structure in the technical solution. It is to be understood that the use of the ordinal terms "first" and "second" above does not constitute an understanding of the technical solutions claimed in this application.

The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.

Claims (15)

1. The adsorption device is characterized by comprising a pole piece adsorption mechanism and a pole lug adsorption mechanism;

the lug adsorption mechanism comprises a gas distribution bin and a support assembly, wherein the gas distribution bin is communicated with the negative pressure system, and the support assembly is connected with the gas distribution bin and is provided with an air passage communicated with the inner cavity of the gas distribution bin; the supporting component further comprises an adsorption supporting part which can be adapted to the tab to be adsorbed, and the air passage extends to penetrate through the adsorption supporting part so as to form an adsorption port in the adsorption supporting part;

the support assembly is at least arranged at the position of the lug adsorption mechanism corresponding to the lug side end part.

2. The adsorption device of claim 1, wherein the support assembly comprises a first support assembly and a second support assembly; the first supporting component is positioned at the first end of the gas distribution bin and is arranged corresponding to one side end part of the tab; the second supporting component is positioned at the second end of the gas distribution bin and is arranged corresponding to the end part of the other side of the tab.

3. The adsorption device of claim 2, wherein the first support assembly and the second support assembly each have an auxiliary port and are in communication with the respective airway.

4. The adsorption device of claim 3 wherein the first support assembly and the second support assembly each comprise a plurality of spaced apart plate-like bodies with the air passage formed between adjacent plates; the adsorption supporting parts are formed at the bottom plate edges of the plates, corresponding adsorption ports are formed between the bottom plate edges of two adjacent plates, and the auxiliary air ports are formed between the outer plate edges of the adjacent plates.

5. The adsorption device of any one of claims 2-4, wherein the second support assembly is further located in a middle region of the gas separation cartridge.

6. The suction device of claim 5, wherein the plate-like body of the first support assembly is deformable between a support position and a avoidance position and is configured to: when the first stacking clamping jaw is inserted and moved, the clamping jaw positioned above the lug can push the sheet-shaped body of the first supporting component to deform and switch to the avoiding position; and a clearance part is arranged between the plate-shaped bodies of the second supporting components, and the clearance part is arranged corresponding to the second stacking clamping jaw.

7. The suction apparatus of claim 6, wherein the plate-like body of the first support assembly is parallel to the direction of insertion of the first stack gripper to switch to the evacuation position with sideways deformation relative to the gripper.

8. The suction apparatus of claim 6, wherein the plate-like body of the first support assembly is perpendicular to the direction of insertion of the first stack gripper to switch to the evacuation position with respect to inward deformation of the gripper.

9. The adsorption device of claim 5, wherein the plate-like body of the first support assembly is hinged to the gas distribution cartridge to swing between a support position and a avoidance position, and is configured to: when the first stacking clamping jaw is inserted and moved, the clamping jaw above the lug can push the sheet-shaped body of the first supporting component to swing and switch to the avoiding position; and a clearance part is arranged between the plate-shaped bodies of the second supporting components, and the clearance part is arranged corresponding to the second stacking clamping jaw.

10. The adsorption apparatus of claim 3 or 4, further comprising a baffle at least partially covering the auxiliary gas port to form a restriction to the flow through the auxiliary gas port.

11. The adsorption apparatus of claim 10, wherein the baffle is fixedly disposed on the gas separation cartridge or the baffle is hinged to the gas separation cartridge.

12. The adsorption device of claim 1, wherein a plurality of interfaces for communicating with a negative pressure system are arranged on the gas dividing bin, and a plurality of gas dividing strips which are arranged in parallel are arranged in the gas dividing bin.

13. The adsorption device of claim 12, wherein the gas separation strips are disposed along a length of the tab.

14. A stack feeder comprising an adsorption device for adsorbing pole pieces and tabs, characterized in that the adsorption device employs the adsorption device of any one of claims 1 to 13.

15. The stack feeder of claim 14, further comprising at least two sets of stack feeding jaws, wherein the head of the upper jaw of at least one set of the stack feeding jaws is tapered.

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