CN220041933U - Pole piece thermal compounding device and thermal compounding system - Google Patents

Abstract

The utility model relates to a pole piece thermal compounding device and a thermal compounding system, wherein the pole piece thermal compounding device comprises: the correcting assembly comprises a correcting straight line module and at least one correcting module, the fixed end of the correcting module is connected with the driving end of the correcting straight line module to reciprocate to flow to a loading station and a taking station, and the correcting end of the correcting module is provided with a pickup structure; the feeding mechanism comprises a feeding line body and at least one compound die, and the compound die moves on the feeding line body so as to circulate between the sheet taking station and the compound station. According to the utility model, the pole piece is rectified through the rectification mechanism and then sent to the pole piece taking station, so that the pole piece rectified by the composite die is picked up, therefore, the rectification mechanism is not required to be arranged on the composite die, the structure of the composite die is simplified, and the manufacturing cost of the composite die is reduced.

Description

Pole piece thermal compounding device and thermal compounding system

Technical Field

The utility model relates to the technical field of battery processing equipment, in particular to a pole piece thermal compounding device and a thermal compounding system.

Background

At present, the lithium ion battery is generally manufactured by adopting a lamination process, particularly by adopting a thermal composite lamination mode, specifically, the positive electrode material belt, the negative electrode material belt and the isolating film belt are required to be rolled by adopting proper pressure after being heated by a heating device before lamination, so that the positive electrode material belt, the negative electrode material belt and the isolating film belt are mutually attached to form a whole.

In the related art, the pole pieces are firstly cut into sheet units, and then the sheet pole pieces are sequentially and thermally compounded on the surface of the unreeled diaphragm. Specifically, the pole piece is picked up by using a compound die, the pole piece is rectified, and finally the pole piece is sent to a compound station by the compound die to be thermally compounded with the diaphragm.

To increase the efficiency of the thermal compounding process, multiple compounding dies are typically used to pick up and transfer the pole pieces. Because the pole piece needs to rectify before thermal compounding, each compound die is correspondingly provided with a rectification module. The composite die is provided with the deviation rectifying modules, so that the composite die is complicated in structure and large in space occupation, and in addition, the deviation rectifying modules are required to be correspondingly arranged according to the number of the composite dies, so that the demand number of the deviation rectifying modules is large, and the cost of the whole thermal composite processing equipment is increased.

Disclosure of Invention

The embodiment of the utility model provides a pole piece thermal compounding device and a thermal compounding system, which are used for solving the technical problems of complex structure of a compounding die and higher cost of thermal compounding processing equipment in the related technology.

In a first aspect, there is provided a pole piece thermal compounding device, comprising:

the correcting assembly comprises a correcting straight line module and at least one correcting module, the fixed end of the correcting module is connected with the driving end of the correcting straight line module to reciprocate to flow to a loading station and a taking station, and the correcting end of the correcting module is provided with a pickup structure;

the feeding mechanism comprises a feeding line body and at least one compound die, and the compound die moves on the feeding line body so as to circulate between the sheet taking station and the compound station.

In some embodiments, the pole piece thermal compounding device further comprises a cutting mechanism, wherein the cutting mechanism is arranged at a cutting station, and the pole piece is cut by the cutting mechanism at the cutting station and then sent to the feeding station.

In some embodiments, the pole piece thermal compounding device further comprises a transfer mechanism, the transfer mechanism is arranged between the cutting mechanism and the deviation rectifying mechanism, the transfer mechanism comprises a transfer linear module and a transfer pick-up piece, the transfer pick-up piece is connected with the driving end of the transfer linear module to reciprocate to the pole piece taking station and the cutting station, and the transfer pick-up piece is suitable for picking up the pole piece.

In some embodiments, the pole piece thermal compounding device further comprises a pole piece feeding mechanism for unreeling the pole piece, wherein the unreeling path of the pole piece passes through the cutting station.

In some embodiments, the pick-up structure includes one or more of a suction hole, a suction slot, and a suction cup, the pick-up structure being in communication with an external negative pressure device.

In some embodiments, the composite mold includes a composite pick including a pick face for lay-down and picking up pole pieces.

In some embodiments, the composite mold further comprises a heating module integrated into the composite pick-up, the heating module for heating the pick-up face.

In some embodiments, the composite mold further includes a pressing linear driving member, a fixed end of the pressing linear driving member flows through the feeding line body, and a driving end of the pressing linear driving member is connected with the composite pick-up member, so as to drive the composite pick-up member to move perpendicular to the pick-up surface.

The technical scheme provided by the utility model has the beneficial effects that:

the embodiment of the utility model provides a pole piece thermal compounding device, because of the arrangement of a correction mechanism, a pole piece is corrected by the correction mechanism and then picked up by a compounding die, and finally the pole piece is thermally compounded on a diaphragm by the compounding die, so that the pole piece is subjected to thermal compounding processing by the compounding die after correction, the structure of the correction mechanism is not required to be arranged on the compounding die, the structure of the compounding die is simplified, and the manufacturing cost of the compounding die is saved. In addition, after the correction module of the correction mechanism picks up the pole piece, the correction module and the pole piece are conveyed to the piece taking station from the piece loading station by the correction linear module while the correction is carried out on the pole piece, so that the composite die takes away the pole piece after correction, and therefore, the correction and the transfer processes of the pole piece are simultaneously completed by the correction mechanism, and the efficiency of thermal composite processing is improved.

In a second aspect, there is provided a thermal compounding system comprising a pole piece thermal compounding device as described above.

In some embodiments, the pole piece thermal compounding device is provided with at least one pair, the feeding mechanisms of the pair of pole piece thermal compounding devices are arranged at intervals, a compounding channel is reserved between compounding stations of the pair of pole piece thermal compounding devices, and the membrane is penetrated by the compounding channel.

In another embodiment of the present utility model, a thermal compounding system is provided, and because the thermal compounding system includes the pole piece thermal compounding device described above, the beneficial effects of the thermal compounding system are consistent with those of the pole piece thermal compounding device described above, and will not be described herein.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a thermal compounding system according to another embodiment of the present utility model;

FIG. 2 is a schematic view of a portion of a pole piece thermal compounding device according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of a deviation rectifying mechanism, a cutting mechanism and a transfer mechanism according to an embodiment of the present utility model;

fig. 4 is a schematic diagram of a composite mold according to an embodiment of the present utility model.

In the figure: 1. a deviation correcting mechanism; 11. a deviation rectifying linear module; 12. a deviation rectifying module; 2. a feeding mechanism; 21. a feed line body; 22. a composite mold; 221. a composite pick-up; 222. pressing the linear driving piece; 2a, picking up the surface; 3. a cutting mechanism; 4. a transfer mechanism; 41. a transfer straight line module; 42. transferring the pick-up; 5. a pole piece supply mechanism; 6. a diaphragm supply mechanism; 7. and a rolling mechanism.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The embodiment of the utility model provides a pole piece thermal compounding device, which is used for rectifying a pole piece through a rectifying mechanism and then sending the pole piece to a pole piece taking station so as to enable a compounding die to pick up the rectified pole piece, so that the rectifying mechanism is not required to be arranged on the compounding die, the structure of the compounding die is simplified, and the manufacturing cost of the compounding die is reduced. The utility model solves the technical problems of complex structure of the composite die and high cost of thermal composite processing equipment in the related technology.

Referring to fig. 1 and 2, a pole piece heat compounding device comprises a deviation rectifying mechanism 1 and a feeding mechanism 2, wherein the deviation rectifying mechanism 1 is used for rectifying a pole piece, the rectified pole piece is sent to the feeding mechanism 2, and the feeding mechanism 2 is used for picking up the rectified pole piece and compounding the pole piece heat to the surface of a diaphragm.

Referring to fig. 1 and 2, further, the pole piece thermal compounding device further includes a pole piece supply mechanism 5, a cutting mechanism 3, and a transfer mechanism 4. The cutting mechanism 3 is located at a cutting station, and the transfer mechanism 4 is used for conveying the pole piece from the cutting station to the upper piece station. The pole piece supply mechanism 5 is used for unreeling the pole piece, the pole piece passes through the cutting station after unreeling, the pole piece is cut by the cutting station, and then the pole piece is sent to the upper pole station by the transfer component.

Referring to fig. 1 and 2, the pole piece feeding mechanism 5 includes a pole piece unreeling assembly and a pole piece deviation rectifying assembly, the pole piece unreeling assembly unreels the pole piece in a form of unreeling roller rotation, specifically, the pole piece coil stock is unreeled by the pole piece unreeling assembly, and the unreeled pole piece is rectified by the pole piece deviation rectifying assembly and then sent to the cutting mechanism 3. In this embodiment, the pole piece unreeling component is unreeling equipment, and the pole piece deviation rectifying component is deviation rectifying equipment, and because the unreeling equipment and the deviation rectifying equipment are more conventional, the description is omitted here.

Referring to fig. 1 and 2, after the pole piece is unreeled to the cutting mechanism 3, the pole piece is cut by a cutting station, and the pole piece in a roll shape is cut into pole pieces in a sheet shape so as to facilitate subsequent thermal compounding. In addition, by arranging the cutting mechanism 3, the sheet-shaped pole pieces can be continuously supplied. Wherein the cutting mechanism 3 comprises a laser cutting device.

Referring to fig. 1 to 3, a transfer mechanism 4 is disposed between the deviation rectifying mechanism 1 and the cutting mechanism 3, and the cut pole piece is located at the cutting station and transferred to the taking station by the transfer mechanism 4. The transfer mechanism 4 includes a transfer line module 41 and a transfer pick-up 42. The transfer line module 41 includes a linear motor, and in other embodiments, the transfer line module 41 may further include a screw mechanism. The transfer pick-up member 42 is connected to the driving end of the transfer linear module 41, so as to reciprocate by the drive of the transfer linear module 41, and send the pole piece of the cutting station to the piece taking station.

Referring to fig. 1 to 3, in particular, the transfer pick-up 42 includes a transfer pick-up rack, a transfer pick-up linear driving member, and a transfer pick-up chuck, and the transfer pick-up rack is connected to the driving end of the transfer linear module 41 to be moved by the transfer linear module 41. The fixed end of the transfer pick-up linear driving piece is fixed with the transfer pick-up frame through bolts, the transfer pick-up sucker is connected with the driving end of the transfer pick-up linear driving piece, and the transfer pick-up sucker is communicated with an external negative pressure device so as to control the transfer pick-up sucker to pick up or put down the pole piece through the external negative pressure device. In this embodiment, the transfer pick-up linear driving member includes a cylinder, and in other embodiments, the transfer pick-up linear driving member may further include a screw mechanism or a linear motor.

In this embodiment, the pole piece is unwound in a horizontal direction to a cutting station and is cut by the cutting mechanism 3. The cut pole piece is placed in a cutting station in a horizontal state. The transfer pick-up linear driving piece moves along the vertical direction to drive the transfer pick-up sucker to be close to the pole piece and be adsorbed on the surface of the pole piece.

Further, when the pole piece is cut, the transfer pick-up linear driving piece drives the transfer pick-up sucker to be adsorbed on the pole piece so as to limit the pole piece to move during cutting, so that the cutting quality of the pole piece is improved, the position of the pole piece is not easy to change after the pole piece is cut, excessive deflection of the pole piece is avoided, and the subsequent correction of the pole piece is facilitated so as to improve the thermal compounding quality of the pole piece.

Referring to fig. 1 to 3, the deviation rectifying mechanism 1 includes a deviation rectifying straight line module 11 and at least one deviation rectifying module 12. The deviation rectifying linear module 11 comprises a linear motor, and in other embodiments, the deviation rectifying linear module 11 can also be a screw mechanism, a conveyor belt mechanism, and the like. The fixed end of the rectifying module 12 is connected with the driving end of the rectifying linear module 11 so that the rectifying linear module 11 drives the rectifying module 12 to circulate, and the rectifying end of the rectifying module 12 is provided with a picking structure so as to pick up the pole piece. The deviation rectifying module 12 is driven by the deviation rectifying linear module 11 to reciprocate to flow to the loading station and the taking station, the deviation rectifying module 12 picks up the pole piece at the loading station, and then rectifies the pole piece and sends the pole piece to the taking station. In this embodiment, the rectifying module 12 rectifies the pole piece while sending the pole piece to the pole piece taking station, so as to improve the processing efficiency. The two deviation rectifying modules 12 are arranged, and the two deviation rectifying modules 12 are connected to the driving end of the deviation rectifying linear module 11 and are arranged at intervals in the driving direction of the deviation rectifying linear module 11.

Referring to fig. 1 to 3, in the present embodiment, the movement direction of the deviation rectifying module 12 is identical to the movement direction of the transfer pick-up 42, and both move in the horizontal direction. Typically, after unreeling the pole piece to the cutting mechanism 3, the pole piece may have a deviation in position in the direction of movement of the vertical transfer pick 42. After the pole piece is picked up by the rectifying module 12, the rectifying module 12 adjusts the position of the pole piece in the direction perpendicular to the movement direction of the rectifying module 12, so that the pole piece is rectified.

Specifically, the deviation rectifying module 12 includes a deviation rectifying seat, a deviation rectifying table, and a deviation rectifying linear driving member. The deviation correcting seat is fixed on the driving end of the deviation correcting linear module 11 through bolts, the deviation correcting table is arranged on the deviation correcting seat in a sliding mode, the fixed end of the deviation correcting linear driving piece is fixed with the deviation correcting seat, and the driving end of the deviation correcting linear driving piece is connected with the deviation correcting table so as to drive the deviation correcting table to move relative to the deviation correcting seat towards the driving direction perpendicular to the deviation correcting linear module 11. The deviation rectifying linear driving piece comprises a screw rod mechanism, and in other embodiments, the deviation rectifying linear driving piece can also comprise a linear motor.

The structure of rectifying is located to the structure of rectifying, and the structure of picking up includes one or more in absorption hole, adsorption tank and the sucking disc, and in this embodiment, the inside cavity setting of rectifying is located the surface of rectifying and with the inside intercommunication of rectifying the platform to the structure of picking up is located to the structure, and outside negative pressure device is through rectifying the platform and pick up the structure intercommunication to pick up or put down the pole piece through changing the negative pressure.

After the correction table picks up the pole piece, the position of the correction table relative to the correction seat is changed through the correction linear driving piece so as to correct the picked pole piece.

In other embodiments, the rectifying module 12 may further include a multi-axis mechanical arm, which may drive the pole piece to move in multiple axial directions, so as to adjust the rectifying pole piece.

Referring to fig. 1 and 2, after the pole piece is rectified, the pole piece is sent to the feeding mechanism 2 by the rectifying module 12. Wherein the feeding mechanism 2 comprises a feeding line body 21 and at least one compound die 22. The compound die 22 moves on the feed line 21 to circulate between the take-up station and the compound station. In this embodiment, the feeding line body 21 is an annular line body, and drives the composite mold 22 to rotate by using a magnetic drive mode. In other embodiments, the feed line 21 may be a conveyor belt mechanism.

Referring to fig. 1 and 2, in the present embodiment, a plurality of composite molds 22 are provided, so as to continuously thermally composite pole pieces. In addition, by varying the spacing between adjacent composite molds 22, different types of cell laminations can be accommodated.

Referring to fig. 2 and 4, in particular, the composite mold 22 includes a composite pick 221, a heating module, and a nip linear drive 222. The fixed end of the pressing linear driving member 222 is circulated to the feeding wire body 21, and the driving end of the pressing linear driving member 222 is connected with the composite pickup member 221 to drive the composite pickup member to move. In this embodiment, the pressing linear driving member 222 includes a cylinder, and in other embodiments, an electric cylinder may be included. The composite pick-up member 221 includes a pick-up surface 2a, the composite pick-up member 221 is in a block shape, the interior of the composite pick-up member is hollow, a hole is formed on the pick-up surface 2a, and in some embodiments, a suction cup may be disposed on the pick-up surface 2 a. Communicates with the composite pick 221 by an external negative pressure device to control the pick face 2a of the composite pick 221 to pick up or release the pole piece. When the composite pick-up member 221 picks up the pole piece, the pick-up surface 2a is flatly attached to the surface of the pole piece, that is, the pick-up surface 2a is horizontally arranged. The pressing linear driving member 222 drives the composite pick-up member 221 to move perpendicular to the pick-up surface 2a, i.e., vertically.

Referring to fig. 1 and 2, when the composite mold 22 is transferred to the sheet-taking station, the composite linear driving member drives the composite pickup member 221 to move to approach the pole piece, so that the composite pickup member 221 picks up the pole piece. When the composite mould 22 flows to the composite station, the composite linear driving piece drives the composite pick-up piece 221 to move and compress the surface of the diaphragm,

the heating module is integrated in the composite pick-up 221 and is used for heating the pick-up surface 2a, so as to heat the pole piece, and the pole piece is heated more uniformly because the pick-up surface 2a is flatly attached to the pole piece. After the pole piece is heated, the pole piece can be thermally compounded on the diaphragm. In this embodiment, the heating module includes an electric heating wire embedded in the composite pick-up 221.

The thermal compounding flow of this embodiment is: the pole piece feeding mechanism 5 unwinds the pole piece to the cutting mechanism 3, the coiled pole piece is cut by the cutting mechanism 3 to be in a single piece shape, and the cut pole piece is sent to the upper piece station by the transfer mechanism 4. The correction module 12 picks up the pole piece at the loading station, corrects the pole piece, and sends the corrected pole piece to the taking station. After the corrected pole piece is picked up by the compound die 22 of the feeding mechanism 2 at the pole piece picking station, the pole piece is transferred to the compound station, and the pole piece is thermally compounded on the diaphragm to complete thermal compounding processing.

The embodiment of the utility model provides a pole piece thermal compounding device, because of the arrangement of a correction mechanism 1, a pole piece is corrected by the correction mechanism 1 and then picked up by a compounding die 22, and finally the pole piece is thermally compounded on a diaphragm by the compounding die 22, so that the pole piece is subjected to thermal compounding processing by the compounding die 22 after correction, the compounding die 22 does not need to be provided with a correction structure, the structure of the compounding die 22 is simplified, and the manufacturing cost of the compounding die 22 is saved. In addition, after the rectifying module 12 of the rectifying mechanism 1 picks up the pole piece, the rectifying linear module 11 conveys the rectifying module 12 and the pole piece from the loading station to the taking station while rectifying the pole piece, so that the composite die 22 takes away the pole piece after rectifying, and the rectifying and transferring processes of the pole piece are completed simultaneously by the rectifying mechanism 1, thereby improving the efficiency of thermal composite processing.

Referring to fig. 1, another embodiment of the present utility model provides a thermal compounding system that includes the pole piece thermal compounding device described above.

Referring to fig. 1, in this embodiment, the thermal compounding system includes at least one pair of pole piece thermal compounding devices. In this embodiment, the pole piece thermal compounding device is provided with a pair. The two groups of pole piece heat compounding devices respectively and thermally compound the pole pieces to the two opposite surfaces of the diaphragm.

Referring to fig. 1, the feeding mechanisms 2 of the two sets of pole piece heat compounding devices are arranged at intervals, in this embodiment, the feeding mechanisms 2 of the two sets of pole piece heat compounding devices are arranged at intervals in the vertical direction, specifically, compounding stations of the two sets of pole piece heat compounding devices are arranged at intervals in the vertical direction, and a compounding channel is reserved between the two compounding stations for passing through a diaphragm. Wherein the diaphragm passes through the composite channel in a horizontal state. When the diaphragm passes through the composite channel, the two groups of feeding mechanisms 2 respectively thermally compound the pole pieces to the upper surface and the lower surface of the diaphragm.

By arranging the two groups of pole piece heat compounding devices, the two surfaces of the diaphragm are conveniently and simultaneously subjected to heat compounding, and the heat compounding processing efficiency is improved.

Referring to fig. 1, the thermal compounding system further includes a diaphragm feeding mechanism 6, the diaphragm feeding mechanism 6 unwinds the diaphragm by means of an unwind roller rotation, and the diaphragm passes through the compounding channel by means of a plurality of guide rollers, thereby thermally compounding the pole piece to the diaphragm surface by the pole piece thermal compounding device.

Referring to fig. 1, further, the thermal compounding system further includes a rolling mechanism 7, the rolling mechanism 7 is located at the rear of the compounding channel, after the pole piece is compounded on the diaphragm, the diaphragm after thermal compounding passes through the rolling mechanism 7, and the diaphragm and the pole piece are rolled by the rolling mechanism 7, so that the connection between the pole piece and the diaphragm is reinforced, the firm compounding of the pole piece and the diaphragm is ensured, and the compounding quality is improved.

The rolling mechanism 7 comprises a rolling frame and at least one pair of pressing rollers, and the pressing rollers are rotatably connected to the rolling frame. A rolling channel is reserved between each pair of press rollers, and the rolling channel is used for the diaphragm after the composite processing to pass through.

The working principle of the thermal composite system is as follows: the membrane supply mechanism 6 unwinds the membrane and the membrane passes through the composite channel. The pole piece feeding mechanism 5 unreels the pole piece, the pole piece is cut by the cutting mechanism 3 and then is sent to the upper pole piece station by the transfer mechanism 4, the pole piece of the upper pole piece station is picked up by the deviation correcting mechanism 1, the pole piece is sent to the pole piece taking station after deviation correction, and finally the pole piece after the deviation correction of the pole piece taking station is sent to the compounding station by the feeding mechanism 2 to be thermally compounded on the diaphragm. Wherein the two groups of pole piece thermal compounding devices compound pole pieces on the two opposite surfaces of the diaphragm respectively. After the pole piece is compounded, the diaphragm passes through a rolling mechanism 7, the pole piece and the diaphragm are rolled by the rolling mechanism 7, and the diaphragm and the pole piece are reinforced.

By the arrangement, when the pole piece reaches the feeding mechanism 2, correction is completed, so that the composite die 22 of the feeding mechanism 2 does not need to correct the pole piece, the structure of the composite die 22 is simplified, and the cost for manufacturing the composite die 22 is saved. In addition, two groups of pole piece compounding devices are used for continuously carrying out thermal compounding on the two opposite surfaces of the diaphragm, so that the thermal compounding efficiency is high.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It should be noted that in the present utility model, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing is only a specific embodiment of the utility model to enable those skilled in the art to understand or practice the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A pole piece thermal compounding device, comprising:

the correcting mechanism comprises a correcting straight line module and at least one correcting module, wherein the fixed end of the correcting module is connected with the driving end of the correcting straight line module to reciprocate to flow to a loading station and a taking station, and the correcting end of the correcting module is provided with a pickup structure;

the feeding mechanism comprises a feeding line body and at least one compound die, and the compound die moves on the feeding line body so as to circulate between the sheet taking station and the compound station.

2. The pole piece thermal compounding device of claim 1, further comprising a cutting mechanism disposed at a cutting station, wherein pole pieces are fed to the loading station after being cut by the cutting mechanism at the cutting station.

3. The pole piece thermal compounding device of claim 2, further comprising a transfer mechanism disposed between the cutting mechanism and the deviation rectifying mechanism, the transfer mechanism including a transfer linear module and a transfer pick-up connected to a drive end of the transfer linear module for reciprocal flow to the picking station and the cutting station, the transfer pick-up adapted to pick up the pole piece.

4. The pole piece thermal compounding device of claim 2, further comprising a pole piece feed mechanism for unreeling a pole piece, an unreeling path of the pole piece passing through the cutting station.

5. The pole piece thermal compounding device of claim 1, wherein the pick-up structure includes one or more of a suction hole, a suction slot, and a suction cup, the pick-up structure in communication with an external negative pressure device.

6. The pole piece thermal compounding device of claim 1, wherein the compounding die includes a compounding pick including a pick face for flat pasting and picking a pole piece.

7. The pole piece thermal compounding device of claim 6, wherein the compounding die further comprises a heating module integrated into the compound pick-up, the heating module configured to heat the pick-up face.

8. The pole piece thermal compounding device of claim 6 or 7, wherein the compounding die further comprises a lamination linear driving piece, a fixed end of the lamination linear driving piece flows to the feeding line body, and a driving end of the lamination linear driving piece is connected with the compounding pickup piece so as to drive the compounding pickup piece to move perpendicular to the pickup surface.

9. A thermal compounding system comprising a pole piece thermal compounding device of any of claims 1-8.

10. The thermal compounding system of claim 9, wherein the pole piece thermal compounding device is provided with at least one pair, the feeding mechanisms of the pair of pole piece thermal compounding devices are arranged at intervals, a compounding channel is reserved between compounding stations of the pair of pole piece thermal compounding devices, and the membrane passes through the compounding channel.