CN219329287U

CN219329287U - Diaphragm reversing device

Info

Publication number: CN219329287U
Application number: CN202223287708.9U
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Guangdong Lyric Robot Intelligent Automation Co Ltd
Current assignee: Guangdong Lyric Robot Automation Co Ltd
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-07-11
Anticipated expiration: 2032-12-08

Abstract

The utility model discloses a diaphragm reversing device, which comprises a lamination platform, wherein a mounting bracket is arranged beside the lamination platform, a turnover seat is arranged on the mounting bracket, the turnover seat is movably connected with the mounting bracket, and a diaphragm traction mechanism is arranged on the turnover seat; the turnover seat comprises a first station and a second station, when the turnover seat is positioned at the first station, the diaphragm traction mechanism is positioned outside the lamination platform, and when the turnover seat is positioned at the second station, the diaphragm traction mechanism is positioned on the lamination platform. According to the utility model, the turnover seat is additionally arranged beside the lamination platform, and the diaphragm is pulled and turned over/reversed through the diaphragm pulling mechanism on the turnover seat, so that the diaphragm can be stably attached to the lamination platform all the time, and the production quality and the production efficiency of the lamination battery cell are improved.

Description

Diaphragm reversing device

Technical Field

The utility model relates to production equipment of lithium batteries, in particular to a matched production device of a lamination system.

Background

Lithium ion batteries are widely applied to mobile phones, notebook computers, electric tools, electric vehicles, street lamp standby power supplies, navigation lamps and household small appliances, so that the lithium ion batteries are the largest application group at present. Meanwhile, as new energy environmental protection is a mainstream trend in the future, the lithium battery becomes an emerging industry advocated by the state to the greatest extent, and therefore, the method has important significance as high-efficiency automatic production of the lithium battery with environmental protection and high-tech content.

At present, most of lithium battery cells are produced by adopting a Z-shaped lamination mode, as shown in patent with publication number of CN 212725406U, in the lamination process, the preparation of the cells is carried out according to the cycle of diaphragm-negative pole piece-diaphragm-positive pole piece-diaphragm-negative pole piece-diaphragm … … from bottom to top in sequence, and under the condition of no tail winding, the diaphragm at the uppermost layer is directly cut, so that the lamination production of a single cell is completed. Then prepare the electric core lamination preparation next time, consequently need hug closely this diaphragm again on the platform, but because there is no tension control after the diaphragm is cut off, moreover, because the technology demand, the diaphragm is when hugging closely again on the platform, need turn over the diaphragm over/reverse, and the diaphragm takes place the offset easily in this process, and takes time for a long time, leads to the production efficiency of electric core low.

Disclosure of Invention

The utility model aims to solve the technical problems that: it is an object of the present utility model to provide a diaphragm reversing device that solves one or more of the technical problems of the prior art, and at least provides a beneficial choice or creation.

The utility model solves the technical problems as follows: the diaphragm reversing device comprises a lamination platform, wherein a mounting bracket is arranged beside the lamination platform, a turnover seat is arranged on the mounting bracket, the turnover seat is movably connected with the mounting bracket, and a diaphragm traction mechanism is arranged on the turnover seat; the turnover seat comprises a first station and a second station, when the turnover seat is positioned at the first station, the diaphragm traction mechanism is positioned outside the lamination platform, and when the turnover seat is positioned at the second station, the diaphragm traction mechanism is positioned on the lamination platform.

The beneficial effects of the utility model are as follows: according to the utility model, the turnover seat is additionally arranged beside the lamination platform, and the diaphragm is pulled and turned over/reversed through the diaphragm pulling mechanism on the turnover seat, so that the diaphragm can be stably attached to the lamination platform all the time, and the production quality and the production efficiency of the lamination battery cell are improved.

As a further improvement of the technical scheme, the diaphragm traction mechanism comprises a vacuum box, the vacuum box comprises an upper surface and an inner cavity, a plurality of vent holes are formed in the upper surface, the vent holes are communicated with the inner cavity, an extraction opening is further formed in the side edge of the vacuum box, and the extraction opening is communicated with the inner cavity. The membrane is adsorbed by vacuum, so that the adsorption structure can be simplified and the efficiency can be improved.

As a further improvement of the technical scheme, the turnover seat is rotationally connected with the mounting bracket, a turnover driving unit is arranged on the mounting bracket and comprises a shell and an output shaft, the shell is fixed on the mounting bracket, and the output shaft is in driving connection with the turnover seat. The overturning of the overturning seat is realized by utilizing the motor, so that the overturning action is quicker and more stable.

As a further improvement of the technical scheme, the overturning seat comprises a connecting plate and overturning plates, the diaphragm traction mechanism is fixed on the connecting plate, the overturning plates are provided with two overturning plates, the two overturning plates are respectively located on two sides of the connecting plate, one overturning plate is connected with the output shaft, the other overturning plate is connected with the mounting bracket through a rotating shaft, and the axis of the rotating shaft is located outside the diaphragm traction mechanism. The turnover plate is utilized to drive the connecting plate to rotate, so that the connecting plate is positioned outside the lamination platform when in a first station, and the turnover seat is positioned on the lamination platform when in a second station, thereby simplifying the structure of the turnover seat.

As a further improvement of the technical scheme, a speed reducing mechanism is further arranged between the overturning motor and the overturning seat. Through reducing mechanism, can make the rotation of upset seat more steady, smooth and easy.

As a further improvement of the technical scheme, the overturning plate is provided with an induction sheet, the mounting bracket is provided with an inductor, and the inductor corresponds to the induction sheet. Through the induction piece, the turnover position of the turnover seat can be automatically perceived, the automation of production is improved, and the production efficiency is improved.

As a further improvement of the technical scheme, the lamination platform is also provided with a pressing mechanism. By using the pressing mechanism, the diaphragm can be ensured to be pressed on the platform every time the diaphragm is laminated.

As a further improvement of the technical scheme, the pressing mechanism comprises a pressing knife and a driving mechanism, and the driving mechanism drives the pressing knife to be movably connected with the lamination platform. And the driving mechanism is used for driving the pressing knife to circularly and reciprocally move so as to realize the pressing of the pressing knife on the diaphragm.

As a further improvement of the technical scheme, the film feeding device further comprises a film feeding mechanism, wherein the film feeding mechanism reciprocates back and forth relative to the lamination platform. And the membrane is conveyed to the lamination platform by the membrane conveying mechanism, so that the production efficiency of the lamination battery cell can be improved.

As a further improvement of the technical scheme, the film cutting device further comprises a film cutting mechanism, wherein the film cutting mechanism comprises a cutter and a cutter rest, the cutter rest is fixed on the lamination platform, and the cutter is movably connected with the lamination platform. And cutting off the folded/reversed diaphragm by using a film cutting mechanism so as to enter the production operation of the next laminated cell.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is evident that the drawings described are only some embodiments of the utility model, but not all embodiments, and that other designs and drawings can be obtained from these drawings by a person skilled in the art without inventive effort.

Fig. 1 is a schematic perspective view of the present utility model.

Detailed Description

The conception, specific structure, and technical effects produced by the present utility model will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, features, and effects of the present utility model. It is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present utility model based on the embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings, which are used for supplementing the description of the text portion of the specification with figures so that a person can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but does not understand the limitation of the protection scope of the present utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme. Meanwhile, the technical characteristics in the utility model can be interactively combined on the premise of not contradicting and conflicting.

Referring to fig. 1, the present application provides a membrane reversing device applied to a laminated battery cell production apparatus, which includes a laminated platform 100, the laminated platform 100 is used for stacking a membrane and a pole piece, the laminated platform 100 includes a platform support 110 and a table top 120, the table top 120 is located on the platform support 110, and when in operation, the membrane and the pole piece are stacked on the table top 120 in a mutually staggered manner.

Because the diaphragm is paved at the lowest part and is covered at the uppermost part in the production process of the battery cells, the diaphragm needs to be paved on the platform again every time the production of the battery cells is completed, and the paving direction needs to be opposite to the last moving direction. However, the conventional laminated cell production equipment loses tension after the separator is cut, and reverse is difficult to achieve.

For this purpose, the diaphragm reversing device is provided with a mounting bracket 210 by adding a mounting bracket 210 beside the platform bracket 110, and a turnover seat 220 is arranged on the mounting bracket 210. In this embodiment, the mounting bracket 210 and the platform bracket 110 are separate structures, and in other embodiments, the mounting bracket 210 and the platform bracket 110 may be integral. The turning base 220 is pivotally connected to the mounting bracket 210, and the turning base 220 is further provided with a diaphragm traction mechanism 300, and the diaphragm traction mechanism 300 is fixed on the turning base 220, so that the diaphragm traction mechanism 300 can also turn over relative to the mounting bracket 210. The mounting bracket 210 is further provided with a turnover motor 230, the turnover motor 230 is in driving connection with the turnover seat 220, and the turnover seat 220 can be driven to turn around the rotating shaft by the turnover motor 230 relative to the lamination platform 100. In this embodiment, by using the motor as the power output source, in other embodiments, other overturning driving units may be used as the power output source, for example, an air cylinder, etc.

Specifically, the turnover seat 220 includes two connection plates 221 and two turnover plates 222, the two turnover plates 222 are respectively fixed at the front and rear ends of the connection plates 221, the turnover plates 222 are in a right-angle shape, that is, the turnover plates 222 include a transverse edge and a longitudinal edge, the transverse edge and the longitudinal edge are mutually perpendicular, the connection plates 221 are consistent with the extending direction of the longitudinal edge, that is, the longitudinal edge extends along the front and rear direction, and the connection plates 221 are fixedly connected with the longitudinal edge. The shaft is mounted on the lateral side, so that the axis of the shaft is offset from the longitudinal side in the left-right direction, and because the diaphragm traction mechanism 300 is mounted on the connecting plate 221 and the connecting plate 221 is fixed on the longitudinal side, the axis of the shaft is also offset from the diaphragm traction mechanism 300 in the left-right direction, so that the axis of the shaft is located outside the diaphragm traction mechanism 300. The membrane traction mechanism 300 can overturn relative to the lamination platform 100 around the rotating shaft under the driving of the overturning motor 230.

The length of the connecting plate 221 is slightly greater than that of the lamination platform, and the two turning plates 222 are respectively located at the front side and the rear side of the lamination platform 100, so that the connecting plate 221 can be closer to the lamination platform 100, and the whole diaphragm reversing device is more compact.

In this embodiment, the overturning motor 230 can drive the overturning seat 220 to overturn by 180 °, and the overturning seat 220 is set to have two stations, and the phase angles between the two stations are 180 °. When the first station where the turning seat 220 is located is set, the diaphragm traction mechanism 300 is located outside the lamination platform 100, so that the diaphragm traction mechanism 300 does not interfere with the lamination process of the diaphragm and the pole piece; and the turning block 220 is set at the second station, the diaphragm pulling mechanism 300 is located in the lamination stage 100.

When the operation is performed, the turnover seat 220 is positioned at the first station for most of the time, and when the production of one laminated cell is completed, the diaphragm traction mechanism 300 starts to operate, the diaphragm is positioned above the diaphragm traction mechanism, and then the diaphragm traction mechanism 300 adsorbs the diaphragm; then the overturning motor 230 acts to drive the overturning seat 220 to overturn from the first station to the second station, and the diaphragm traction mechanism 300 always keeps the adsorption relation with the diaphragm in the overturning process of the overturning seat 220, so that the diaphragm is driven to overturn relatively; until the turning seat 220 reaches the second station, the diaphragm traction mechanism 300 drives the diaphragm to turn 180 degrees, the diaphragm is originally positioned on the upper side of the diaphragm traction mechanism 300, and after the diaphragm traction mechanism 300 turns 180 degrees, the diaphragm is pressed on the lamination platform 100. Therefore, the diaphragm can be cut, and the cut diaphragm is always pressed on the lamination platform by the diaphragm traction mechanism 300, so that the free end of the diaphragm is always tensioned, the diaphragm moves reversely at the moment, and the re-paving quality and efficiency of the diaphragm are improved well.

In this embodiment, the membrane pulling mechanism 300 is a vacuum adsorption structure. The diaphragm traction mechanism 300 includes a vacuum box 310, and a lower surface of the vacuum box 310 is fixed to the connection plate 221 by bonding or bolting. The upper surface of the vacuum box 310 is provided with a plurality of fine ventilation holes, and the plurality of ventilation holes are uniformly distributed on the surface of the vacuum box 310. The vacuum box 310 is provided with an extraction opening at a side thereof. The vacuum box 310 is provided with an inner cavity inside, and the air extraction opening and the air vent are both communicated with the inner cavity. When the vacuum box 310 is in operation, the extraction opening is externally connected with a vacuum generator (such as a vacuum pump) so that the inner cavity forms negative pressure, and when the diaphragm covers the vent holes on the vacuum box 310, the negative pressure of the inner cavity can absorb the diaphragm, so that the diaphragm can be tightly attached to the upper surface of the vacuum box 310, and when the overturning seat 220 drives the vacuum box 310 to overturn, the inner cavity keeps the negative pressure, so that the diaphragm can overturn along with the overturning of the vacuum box 310.

In addition to using a vacuum suction mechanism, the diaphragm pulling mechanism 300 may also be a clamping mechanism. For example, the pneumatic clip is mounted on the connecting plate by using the pneumatic clip, and when in operation, the diaphragm is clamped by the pneumatic clip, then the diaphragm is driven to overturn, and then the diaphragm is buckled on the lamination platform.

In addition, in this embodiment, the turnover motor 230 is located at the rear of the lamination platform 100, the rotating shaft is located at the front of the lamination platform, and the axis of the output shaft of the turnover motor 230 is substantially overlapped with the axis of the rotating shaft. Specifically, the turnover motor 230 is a servo motor, the housing of the turnover motor 230 is fixed on the mounting bracket 210, and the output shaft of the turnover motor 230 is in driving connection with the turnover plate 222. When the output shaft rotates, the rear turning plate 222 is synchronously driven to rotate, and as the two turning plates 222 are connected by the connecting plate 221, the front turning plate 222 and the rear turning plate 222 also rotate simultaneously to drive the diaphragm traction mechanism 300 on the connecting plate 221 to realize turning.

Further as a preferred embodiment, a reduction gearbox may be added between the flipping motor 230 and the flipping plate 222. The output shaft of the motor of the turnover motor 230 passes through the reduction gearbox and then drives the turnover seat to rotate. Because servo motor's rotational speed is faster, if through servo motor direct drive upset seat rotation, lead to the upset of upset seat to be unsmooth easily, and drive the upset seat again and rotate after decelerating through the reducing gear box, can make the rotation of upset seat more steady, smooth and easy.

In addition, in order to ensure that the turnover seat 220 can be turned in place, further as a preferred embodiment, an induction piece is further disposed on the turnover plate 222, and correspondingly, an inductor is disposed on the mounting bracket 210, and the inductor is electrically connected with the turnover motor 230. Through the inductor, whether the turnover seat 220 is turned in place or not is known when the turnover seat acts, and the turnover seat 220 is ensured to accurately move back and forth on the first station and the second station. The two sensors can be arranged, and the positions corresponding to the two sensors are the positions when the turnover seat is positioned at the first station and the second station respectively.

Further as a preferred embodiment, the lamination platform is further provided with a pressing mechanism. By using the pressing mechanism, the diaphragm can be ensured to be pressed on the platform every time the diaphragm is laminated. The pressing mechanism comprises a pressing knife and a driving mechanism, and the driving mechanism drives the pressing knife to be movably connected with the lamination platform. And the driving mechanism is used for driving the pressing knife to circularly and reciprocally move so as to realize the pressing of the pressing knife on the diaphragm.

Further as a preferred embodiment, the device further comprises a film feeding mechanism, wherein the film feeding mechanism reciprocates back and forth relative to the lamination platform. In this reverse device of diaphragm, when electric core lamination, lamination platform is not understandable, and the diaphragm is through sending membrane mechanism to realize controlling making a round trip to utilize, utilizes sending membrane mechanism to send the diaphragm to lamination platform on, can improve the production efficiency of lamination electric core.

Further as the preferred implementation mode, the film cutting mechanism comprises a cutter and a cutter rest, wherein the cutter rest is fixed on the lamination platform, and the cutter is movably connected with the lamination platform. And cutting off the folded/reversed diaphragm by using a film cutting mechanism so as to enter the production operation of the next laminated cell.

While the preferred embodiments of the present utility model have been illustrated and described, the present utility model is not limited to the embodiments, and various equivalent modifications and substitutions can be made by one skilled in the art without departing from the spirit of the present utility model, and these are intended to be included in the scope of the present utility model as defined in the appended claims.

Claims

1. A diaphragm reversing device comprising a lamination platform, characterized in that: a mounting bracket is arranged beside the lamination platform, a turnover seat is arranged on the mounting bracket, the turnover seat is movably connected with the mounting bracket, and a diaphragm traction mechanism is arranged on the turnover seat; the turnover seat comprises a first station and a second station, when the turnover seat is positioned at the first station, the diaphragm traction mechanism is positioned outside the lamination platform, and when the turnover seat is positioned at the second station, the diaphragm traction mechanism is positioned on the lamination platform.

2. The diaphragm reversing device of claim 1, wherein: the diaphragm traction mechanism comprises a vacuum box, the vacuum box comprises an upper surface and an inner cavity, a plurality of vent holes are formed in the upper surface, the vent holes are communicated with the inner cavity, an extraction opening is further formed in the side edge of the vacuum box, and the extraction opening is communicated with the inner cavity.

3. The diaphragm reversing device of claim 1, wherein: the turnover seat is rotationally connected with the mounting bracket, a turnover driving unit is arranged on the mounting bracket and comprises a shell and an output shaft, the shell is fixed on the mounting bracket, and the output shaft is in driving connection with the turnover seat.

4. A diaphragm reversing device according to claim 3, wherein: the turnover seat comprises a connecting plate and turnover plates, the diaphragm traction mechanism is fixed on the connecting plate, the turnover plates are provided with two pieces, the two turnover plates are respectively positioned on two sides of the connecting plate, one turnover plate is connected with the output shaft, the other turnover plate is connected with the mounting bracket through a rotating shaft, and the axis of the rotating shaft is positioned outside the diaphragm traction mechanism.

5. The diaphragm reversing device of claim 4, wherein: and a speed reducing mechanism is further arranged between the overturning driving unit and the overturning seat.

6. The diaphragm reversing device of claim 4, wherein: the turnover plate is provided with an induction piece, the mounting bracket is provided with an inductor, and the inductor corresponds to the induction piece.

7. The diaphragm reversing device of claim 1, wherein: and the lamination platform is also provided with a pressing mechanism.

8. The diaphragm reversing device of claim 7, wherein the diaphragm reversing device comprises: the pressing mechanism comprises a pressing knife and a driving mechanism, and the driving mechanism drives the pressing knife to be movably connected with the lamination platform.

9. The diaphragm reversing device of claim 1, wherein: the film feeding mechanism is in reciprocating motion relative to the lamination platform.

10. The diaphragm reversing device of claim 1, wherein: the film cutting mechanism comprises a cutter and a cutter rest, wherein the cutter rest is fixed on the lamination platform, and the cutter is movably connected with the lamination platform.