CN213936318U - Lamination auxiliary mechanism and lamination equipment - Google Patents

Abstract

The utility model relates to a lamination complementary unit and lamination equipment. The lamination auxiliary mechanism acts on a diaphragm between the clamping station and a lamination station downstream of the clamping station, the lamination device is used for stacking a lamination unit of the clamping station to the lamination station, and the lamination auxiliary mechanism comprises a suction assembly, the suction assembly is located below the diaphragm between the lamination station and the clamping station, and the suction assembly is used for generating suction force acting on the diaphragm between the lamination station and the clamping station.

Description

Lamination auxiliary mechanism and lamination equipment

Technical Field

The utility model relates to a lithium battery manufacturing equipment technical field especially relates to a lamination complementary unit and lamination equipment.

Background

In the battery manufacturing process, it is often necessary to stack the positive electrode sheet, the negative electrode sheet, and the separator with a stacking apparatus to form a cell.

At present, a Z-shaped lamination process is generally adopted, a positive plate and a negative plate are attached to two sides of a diaphragm to form a lamination unit, and then the lamination unit is stacked in a Z shape from bottom to top by utilizing a lamination clamping jaw of lamination equipment. However, in the process that the lamination clamping jaw clamps the lamination unit to move to the lamination station, diaphragm creases, diaphragm flanging, diaphragm corrugation and other phenomena are easy to occur on the diaphragm between the lamination clamping jaw and the lamination station, so that the diaphragm is prone to powder falling and area damage, and the risk of short circuit of the battery cell is increased.

SUMMERY OF THE UTILITY MODEL

On the basis, the lamination auxiliary mechanism and the lamination equipment for improving the defects are provided for solving the problems that in the prior art, diaphragm creases, diaphragm flanging, diaphragm corrugation and the like easily occur on a diaphragm between a lamination clamping jaw and a lamination station in the process of moving the lamination clamping jaw clamping lamination unit towards the lamination station, so that the diaphragm is broken and the area is damaged, and further the short circuit risk of a battery cell is increased.

A lamination complementary unit acts on a diaphragm between a clamping station and a lamination station at the downstream of the clamping station, a lamination device is used for stacking a lamination unit of the clamping station to the lamination station, the lamination complementary unit comprises a suction assembly, the suction assembly is located below the lamination station and the diaphragm between the clamping station, and the suction assembly is used for generating suction force acting on the diaphragm between the lamination station and the clamping station.

In one embodiment, the air suction assembly comprises a mounting frame and a suction piece, wherein the suction piece is mounted on the mounting frame;

the air suction piece is provided with an air outlet and an air suction port communicated with the air outlet, the air outlet is communicated with an exhaust pipeline, and the air suction port is used for sucking air so as to generate an adsorption force acting on a diaphragm between the lamination station and the clamping station.

In one embodiment, the air inlet direction of the air suction opening is inclined towards the clamping station relative to the vertical direction.

In one embodiment, the air suction port comprises a plurality of air suction holes which are communicated with the air outlet holes, and the air suction holes are arranged at intervals along a preset direction.

In one embodiment, the air suction member is an air suction pipe, and the preset direction is parallel to the axial direction of the air suction member; one end of the air outlet hole penetrates through one axial end of the air suction piece, and the other end of the air outlet hole extends along the axial direction of the air suction piece;

one end of each air suction hole penetrates through the peripheral side surface of the air suction piece, and the other end of each air suction hole extends along the radial direction of the air suction piece and is communicated with the air outlet hole.

In one embodiment, the air suction port includes a suction slit communicating with the air outlet hole, and the suction slit extends lengthwise in a predetermined direction.

In one embodiment, the predetermined direction is parallel to a width direction of the diaphragm.

In one embodiment, the lamination auxiliary mechanism further comprises a bearing plate, wherein the bearing plate is arranged on one side of the lamination station close to the clamping station and is used for bearing the diaphragm.

In one embodiment, the bearing plate comprises a horizontal bearing sub-plate and an inclined bearing sub-plate, the horizontal bearing sub-plate is arranged in parallel to a horizontal plane, one end of the inclined bearing sub-plate is connected to one end, close to the clamping station, of the horizontal bearing sub-plate, and the other end, opposite to the inclined bearing sub-plate, of the inclined bearing sub-plate extends downwards relative to the horizontal plane.

In one embodiment, the suction assembly comprises a bearing plate, the bearing plate is arranged on one side of the lamination station close to the clamping station and is used for bearing the diaphragm;

and the upper side of the bearing plate is provided with an air suction port communicated with the exhaust pipeline.

In one embodiment, the supporting plate comprises a horizontal supporting sub-plate and an inclined supporting sub-plate, the horizontal supporting sub-plate is arranged in parallel to a horizontal plane, one end of the inclined supporting sub-plate is connected to one end of the horizontal supporting sub-plate close to the clamping station, and the other end, opposite to the inclined supporting sub-plate, of the inclined supporting sub-plate extends downwards relative to the horizontal plane;

the air suction port is formed in the horizontal bearing sub-board and/or the inclined bearing sub-board.

A lamination apparatus comprising a lamination device, a lamination jaw, and a lamination assist mechanism as described in any of the above embodiments;

the lamination device comprises a lamination platform, the lamination platform is arranged corresponding to the lamination station, the lamination clamping jaws are arranged corresponding to the clamping stations, and the lamination device is used for clamping the lamination units of the membranes of the clamping stations and stacking the lamination units to the lamination platform.

According to the lamination auxiliary mechanism and the lamination equipment, during lamination operation, the lamination clamping jaws clamp the lamination units passing through the clamping station, then move towards the lamination platform of the lamination station, and finally stack the clamped lamination units on the lamination platform. And repeating the actions so as to stack the lamination units of the clamping stations on the lamination platform from bottom to top one by one. The in-process that the lamination platform of pressing from both sides the lamination unit back removes is got to the lamination clamping jaw, utilize the subassembly of breathing in to absorb and press from both sides the air of getting the diaphragm below of getting between station and the lamination station, form to adsorb the diaphragm, make the diaphragm keep having certain tension at the in-process that piles up, and make the diaphragm crooked (be downwarping) and avoid the diaphragm to upwards arch up towards the direction of subassembly of breathing in, thereby can avoid appearing the diaphragm crease when piling up, the diaphragm turn-ups, phenomenons such as diaphragm ripple, and then avoided appearing falling the powder, the regional damaged condition, the short circuit risk of electric core has been reduced.

Drawings

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

FIG. 2 is a schematic view of a suction member of a suction assembly of the lamination assist mechanism of the lamination apparatus of FIG. 1;

fig. 3 to 7 are schematic views illustrating a lamination operation of the lamination apparatus shown in fig. 1;

fig. 8 is a schematic structural diagram of a lamination assisting mechanism of a lamination apparatus according to another embodiment of the present invention.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1, an embodiment of the present invention provides a lamination apparatus, which includes a lamination device, a lamination clamping jaw 40 and a lamination assisting mechanism. The lamination equipment has a pick-up station a and a lamination station B located downstream of the pick-up station a.

The lamination device comprises a lamination platform 50, the lamination platform 50 being arranged in correspondence with the lamination station B. The lamination grippers 40 are arranged corresponding to the gripping station a for gripping the lamination units 101 of the gripping station a one by one and stacking the lamination units 101 to the lamination platform 50.

The lamination assist mechanism acts on the diaphragm 100 between the clamping station a and the lamination station B. The lamination assist mechanism includes a suction assembly 10, the suction assembly 10 being located below the membrane 100 between the lamination station B and the pick-up station a. The suction assembly 10 is used to suck air under the membrane 100 between the lamination station B and the clamping station a to form a negative pressure, thereby generating a suction force acting on the membrane 100 between the lamination station B and the clamping station a. Further, the suction assembly 10 may be disposed at a side of the lamination station B adjacent to the gripping station a. Of course, in other embodiments, the suction assembly 10 may be located on the other side of the lamination station B as long as it can suck air under the diaphragm 100 between the lamination station B and the gripping station a, which is not limited herein.

As shown in fig. 3 to 7, in the lamination assisting mechanism, during the lamination operation, the lamination clamping jaws 40 clamp the tape passing through the lamination unit 101 at the clamping station a, then move toward the lamination platform 50 at the lamination station B, and finally stack the clamped lamination unit 101 on the lamination platform 50. The above-described actions are then repeated, thereby achieving the stacking of the lamination units 101 of the gripping station a on the lamination platform 50 one by one from the bottom up. In the process that the lamination clamping jaw 40 clamps the lamination platform 50 moving towards the lamination station B after the lamination unit 101, the air below the diaphragm 100 between the clamping station a and the lamination station B is sucked by the suction assembly 10 to adsorb the diaphragm 100, so that the diaphragm 100 keeps certain tension in the stacking process, and the diaphragm 100 is bent towards the suction assembly 10 (namely, downwards bent) to avoid the upward arching of the diaphragm 100, thereby avoiding the phenomena of diaphragm crease, diaphragm flanging, diaphragm corrugation and the like in the stacking process, further avoiding the phenomena of powder falling and area damage, and reducing the short circuit risk of the battery cell.

Referring to fig. 1 and 2, in an embodiment of the present invention, the air suction assembly 10 includes a mounting frame 11 and an air suction member 12, and the air suction member 12 is mounted on the mounting frame 11. The air suction member 12 has an air outlet hole 121 and an air suction port communicating with the air outlet hole 121, the air outlet hole 121 is used for communicating with an exhaust duct, and the air suction port is used for sucking air below the diaphragm 100 between the lamination station B and the clamping station a to generate suction force to the diaphragm 100.

In the embodiment, the air inlet direction of the air suction port is inclined towards the clamping station A relative to the vertical direction. As lamination jaws 40 move after picking station a picks lamination unit 101 to lamination station B, they cause compression of membrane 100 between picking station a and lamination station B. The air inlet direction of the air suction port is obliquely arranged towards the clamping station A relative to the vertical direction, so that the extrusion force of the diaphragm 100 can be better released, the airflow can keep certain tension and bend downwards at the diaphragm 100, the diaphragm 100 is guided to be turned over under the condition, the turning-over process of the diaphragm 100 is smooth and reliable, the consistency is good, and the phenomena of diaphragm crease marks, diaphragm turning-over edges, diaphragm corrugation and the like are further avoided.

It should be noted that, in order to make the air inlet direction of the air inlet incline toward the clamping station a relative to the vertical direction, the air inlet may incline toward the lamination station B relative to the vertical direction, so that the air flow direction sucked by the air inlet (i.e., the air inlet direction of the air inlet) inclines toward the clamping station a relative to the vertical direction.

In one embodiment, the suction port comprises a plurality of suction holes 123 communicated with the air outlet 121, and the plurality of suction holes 123 are arranged at intervals along the preset direction, so that the suction holes 123 can be used for simultaneously sucking air below the membrane 100, the air flow is more uniform, the membrane 100 is uniformly stressed in the process that the lamination clamping jaw 40 moves towards the lamination station B, the left-right swinging or the inclination is avoided, and the stacking quality is improved. Alternatively, the suction holes 123 may be circular, square, triangular, oval, irregular, etc.

Further, the air suction member 12 is an air suction pipe, and the predetermined direction is parallel to the axial direction of the air suction member 12. One end of the air outlet hole 121 penetrates through one axial end of the air suction member 12, and the other end of the air outlet hole 121 extends in the axial direction of the air suction member 12. One end of each suction hole 123 penetrates through the circumferential side surface of the suction member 12, and the other end of each suction hole 123 extends in the radial direction of the suction member 12 and communicates with the discharge hole 121. In this way, the gas sucked by each suction hole 123 enters the gas outlet hole 121, flows in the axial direction of the suction member 12, and enters the exhaust duct from the gas outlet hole 121 to be discharged.

Further, the axial direction (i.e. the preset direction) of the air suction piece 12 is parallel to the width direction of the diaphragm 100, so that the whole width direction of the diaphragm 100 can be subjected to the adsorption force generated by air suction through the air suction holes 123, the diaphragm 100 is more smooth and reliable in folding process and good in consistency, and the phenomena of diaphragm folding, diaphragm flanging, diaphragm corrugation and the like are further avoided.

It should be noted that the air suction port is not limited to be in the form of a plurality of air suction holes 123, and in other embodiments, the air suction port may also include an air suction slit communicated with the air outlet hole 121, and the air suction slit extends lengthwise along a predetermined direction, so that the air suction slit can be used to suck the membrane 100, thereby making the air flow more uniform, and the membrane 100 is uniformly stressed during the movement of the lamination clamping jaw 40 to the lamination station B, avoiding the occurrence of side-to-side swinging or tilting, and facilitating the improvement of the stacking quality.

Further, the air suction member 12 is an air suction pipe, and the predetermined direction is parallel to the axial direction of the air suction member 12. One end of the air outlet hole 121 penetrates through one axial end of the air suction member 12, and the other end of the air outlet hole 121 extends in the axial direction of the air suction member 12. The suction slit penetrates the circumferential side surface of the suction member 12, and the suction slit penetrates to the air outlet hole 121 in the radial direction of the suction member 12 to communicate with the air outlet hole 121. Thus, the gas sucked by the suction slit enters the gas outlet hole 121 and then enters the exhaust pipeline to be discharged.

The embodiment of the utility model provides an in, lamination complementary unit still includes bearing board 20, and this bearing board 20 sets up in lamination station B and is close to the one side of pressing from both sides and getting station A for bearing diaphragm 100. Thus, the part of the diaphragm 100 close to the lamination station B is supported by the supporting plate 20, so that the diaphragm 100 is prevented from completely and freely falling, the part which is not supported is driven by the lamination clamping jaw 40 to be turned over towards the part which is supported, the turning over process of the diaphragm 100 is facilitated to be smooth and reliable, and the consistency is good.

In one embodiment, the support plate 20 includes a horizontal support sub-plate 21 and an angled support sub-plate 22. The horizontal support sub-plate 21 is disposed parallel to a horizontal plane. One end of the inclined bearing sub-plate 22 is connected to one end, close to the clamping station A, of the horizontal bearing sub-plate 21, and the other end, opposite to the inclined bearing sub-plate 22, of the inclined bearing sub-plate extends downwards relative to the horizontal plane. In this way, the provision of the inclined support sub-plate 22 facilitates the downward bending of the diaphragm 100 under the guidance of the suction force generated by the suction of the suction assembly 10 on the diaphragm 100, so as to maintain a certain tension, and avoid the phenomena of bending, stacking and wrinkling which are easily caused by the upward arching of the pressed diaphragm 100 when stacked.

It should be noted that the lamination assisting mechanism of the present invention is not limited to the way of separately providing the suction unit 10 for sucking the diaphragm 100 and the support plate 20 for supporting the diaphragm 100. In other embodiments, as shown in fig. 8, the suction assembly 10 includes a support plate disposed on a side of the lamination station B adjacent to the pick-up station a for supporting the membrane 100. The upper side of the bearing plate is provided with an air suction port communicated with the exhaust pipeline. In this way, the support plate serves to support the diaphragm 100 to prevent the diaphragm 100 from completely sagging freely, and sucks air below the diaphragm 100 through the air inlet on the upper side of the support plate to suck the diaphragm 100 downward, thereby sucking the diaphragm 100 downward. Alternatively, the suction port may be a plurality of suction holes opened on the upper side of the support plate, and the suction holes may be arranged at intervals in the width direction of the diaphragm 100. Of course, the air inlet may be an air inlet slit opened on the upper side of the support plate, and the suction slit may extend lengthwise in the width direction of the diaphragm 100. So, design the induction port for including a plurality of absorption holes or inhale the slit for the adsorption affinity that diaphragm 100 received is more even, and it is even to laminate clamping jaw 40 to the diaphragm 100 atress of lamination station B removal in-process, avoids taking place left and right rocking or slope, is favorable to improving and piles up the quality. It is to be noted that, of course, suction through the suction port in the support plate is stopped when the diaphragms are being transported, and suction through the suction port in the support plate is performed when the diaphragms are stacked.

Specifically to the embodiment, bearing board 20 includes horizontal bearing daughter board and slope bearing daughter board, and horizontal bearing daughter board is on a parallel with the horizontal plane setting, and the one end of slope bearing daughter board is connected in horizontal bearing daughter board and is close to the one end of getting station A, and the relative horizontal plane downward sloping of the other end that the slope bearing daughter board is relative extends. The air suction port is arranged on the horizontal bearing sub-board and/or the inclined bearing sub-board. Thus, the inclined support sub-plate is beneficial to the downward bending of the diaphragm 100 under the guiding of the suction force generated on the diaphragm 100 by the suction of the suction assembly 10, so that certain tension is kept, and the phenomena of bending, accumulation and wrinkling caused by the fact that the extruded diaphragm 100 is arched upwards during stacking are avoided.

Referring to fig. 1 and 3 to 7, in an embodiment of the present invention, the lamination device further includes a pressing plate assembly 60, wherein the pressing plate assembly 60 is disposed above the lamination platform 50 and configured to be capable of approaching or departing toward the lamination platform 50 to press the lamination unit 101 stacked on the lamination platform 50. In this manner, when lamination jaws 40 stack lamination unit 101 onto lamination platform 50, pressure plate assembly 60 is adjacent to lamination platform 50, thereby compressing lamination unit 101 stacked on lamination platform 50. Lamination jaws 40 are then withdrawn from lamination unit 101 and may be returned to clamping station a for the next stacking of lamination unit 101. At this point, the platen assembly 60 moves back away from the lamination platform 50.

Referring to fig. 1, in an embodiment, the platen assembly 60 includes a base 61, a slide 62, a first driving member 63, a second driving member 64, and a main platen 65. The slide 62 is movably connected to the base 61, and the first driving member 63 is mounted on the base 61 and is in transmission connection with the slide 62 to drive the slide 62 to move relative to the base 61 to move toward or away from the lamination platform 50. The second driving member 64 is mounted on the sliding base 62 and is in transmission connection with the main pressing plate 65 to drive the main pressing plate 65 to move close to or away from the lamination platform 50. Thus, after lamination unit 101 is stacked on lamination platform 50 by lamination jaws 40, first drive 63 drives slide 62 toward lamination platform 50, thereby bringing main pressure plate 65 close to lamination platform 50, and then second drive 64 drives main pressure plate 65 to continue close to lamination platform 50 until lamination unit 101 stacked on lamination platform 50 is compressed. The slide 62 and the base 61 are connected through a slide rail and a slide block, so that the slide 62 can move relative to the base 61.

Further, the pressing plate assembly 60 further includes a guide seat 68, the guide seat 68 is movably connected to the slide seat 62, the main pressing plate 65 is mounted on the guide seat 68, and the second driving member 64 is mounted on the slide seat 62 and is in transmission connection with the guide seat 68 to drive the guide seat 68 to move relative to the slide seat 62, so as to drive the main pressing plate 65 to move close to or away from the lamination platform 50. Alternatively, the guide seat 68 and the slide seat 62 are connected by a slide rail and a slide block, so that the guide seat 68 is movable relative to the slide seat 62.

Further, the pressing plate assembly 60 further includes a third driving member 66 and an auxiliary pressing plate 67, wherein the third driving member 66 is mounted on the sliding base 62 or the guide base 68 and is in transmission connection with the auxiliary pressing plate 67 to drive the auxiliary pressing plate 67 to approach or move away from the lamination platform 50.

In a specific embodiment, the lamination device further includes a pressing knife assembly 70, and the pressing knife assembly 70 includes a driving mechanism and a pressing knife in transmission connection with the driving mechanism, and the driving mechanism is used for driving the pressing knife to press the lamination unit 101 stacked on the lamination platform 50. In this manner, after lamination unit 101 is stacked on lamination platform 50 by lamination gripper 40, first drive 63 drives slide 62 toward lamination platform 50, thereby bringing main pressure plate 65 close to lamination platform 50. Then, the second driving member 64 drives the main pressing plate 65 to continue to approach the lamination platform 50 until the lamination unit 101 stacked on the lamination platform 50 is pressed. Then, the lamination jaws 40 are withdrawn from the lamination unit 101, and the third drive 66 drives the auxiliary pressure plate 67 to move close to the lamination platform 50 until the lamination unit 101 is pressed, i.e., the position where the lamination jaws 40 clamp the lamination unit 101 is pressed by the auxiliary pressure plate 67. Then, the driving mechanism drives the pressing blade to press the lamination unit 101 instead of the pressing plate assembly 60. Finally, first drive 63 drives slide 62 back to the initial position away from lamination stage 50 to facilitate suction of suction assembly 10 against diaphragm 100. The second driver 64 drives the main pressure plate 65 to return, and the third driver 66 drives the auxiliary pressure plate 67 to return.

Alternatively, the first driving member 63, the second driving member 64, and the third driving member 66 may employ air cylinders. The driving mechanism can drive the pressing knife to move in a translational manner and in a lifting manner to press the lamination unit 101, and can also drive the pressing knife to move in a rotational manner and in a lifting manner to press the lamination unit 101, which is not limited herein.

It should be noted that, in one embodiment, the auxiliary pressing plates 67 include two, and the main pressing plate 65 is located between the two auxiliary pressing plates 67, so that the main pressing plate 65 is used for pressing against the middle part of the lamination unit 101, and the two auxiliary pressing plates 67 press against the two opposite edges of the lamination unit 101. Four pressing knives may be provided, the four pressing knives are used for pressing against four corners of the lamination unit 101, and the position where the pressing knives press against the lamination unit 101 is not overlapped with the position where the auxiliary pressing plate 67 and the main pressing plate 65 press against the lamination unit 101, so as to avoid interference.

The embodiment of the utility model provides an in, bearing board 20 is connected in lamination platform 50, and is located lamination platform 50 towards pressing from both sides one side of getting station A to in the lamination in-process get the partial diaphragm between station A and the lamination station B to the clamp and carry out the bearing. Further, the horizontal support daughter board 21 of the support plate 20 is attached to the lamination platform 50.

Referring to fig. 3, in an embodiment of the present invention, the lamination apparatus further includes an unwinding device and a carrying device 80, the unwinding device is disposed at an upstream of the clamping station a, and is configured to unwind the output diaphragm 100 to the clamping station a, and the carrying device 80 is configured to carry the first pole piece 101a and the second pole piece 101b, and attach the first pole piece 101a and the second pole piece 101b to opposite sides of the diaphragm 100 to form the lamination unit 101. That is, each lamination unit 101 includes a first pole piece 101a, a second pole piece 101b, and a separator 100 between the first and second pole pieces 101a, 101 b.

Note that, in the present embodiment, the lamination unit 101 is composed of three layers of a first pole piece 101a, a separator 100, and a second pole piece 101b, which are laminated in this order. However, the lamination unit 101 is not limited thereto, and in other embodiments, the lamination unit may also be composed of five layers of the first pole piece 101a, the diaphragm 100, the second pole piece 101b, the diaphragm 100, and the first pole piece 101a, which are sequentially stacked. Or the seven layers of the first pole piece 101a, the diaphragm 100, the second pole piece 101b, the diaphragm 100, the first pole piece 101a, the diaphragm 100 and the second pole piece 101 b. By analogy, the lamination unit 101 may further include nine layers, 11 layers, and the like, as long as the stacked cells are formed by stacking the first pole piece 101a, the diaphragm 100, the second pole piece 101b, the diaphragm 100, the first pole piece 101a, the diaphragm 100, and the second pole piece 101b … …, which are stacked in sequence, and the stacking is not limited herein.

Further, a tape having a plurality of lamination units 101 may be formed by thermal lamination, and lamination jaws 40 may then stack lamination units 101 onto lamination platform 50 in accordance with the above-described steps. In addition, the lamination unit 101 having a plurality of pole pieces and a separator formed in advance may be attached to opposite sides of the separator 100 by using the handling device 80 and then stacked. The lamination unit may be formed in other manners known in the art, and is not limited herein.

It should be noted that the first pole piece 101a may be a positive pole piece, and the second pole piece 101b may be a negative pole piece. Of course, the first tab 101a may be a negative tab, and the second tab 101b may be a positive tab.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (12)

1. A lamination assist mechanism acting on a diaphragm between a clamping station and a lamination station downstream thereof, a lamination device being used for stacking a lamination unit of the clamping station to the lamination station, characterized in that the lamination assist mechanism comprises a suction assembly located below the lamination station and the diaphragm between the clamping station, the suction assembly being used for generating a suction force acting on the diaphragm between the lamination station and the clamping station.

2. The lamination aid according to claim 1, wherein said suction assembly includes a mounting bracket and a suction member, said suction member being mounted to said mounting bracket;

the air suction piece is provided with an air outlet and an air suction port communicated with the air outlet, the air outlet is communicated with an exhaust pipeline, and the air suction port is used for sucking air so as to generate an adsorption force acting on a diaphragm between the lamination station and the clamping station.

3. The lamination aid according to claim 2, wherein the air intake of the air inlet is angled relative to vertical toward the picking station.

4. The lamination aid according to claim 2, wherein said suction port includes a plurality of suction holes each communicating with said discharge hole, said plurality of suction holes being arranged at intervals in a predetermined direction.

5. The lamination aid according to claim 4, wherein the suction member is a suction pipe, and the predetermined direction is parallel to an axial direction of the suction member;

one end of the air outlet hole penetrates through one axial end of the air suction piece, and the other end of the air outlet hole extends along the axial direction of the air suction piece;

one end of each air suction hole penetrates through the peripheral side surface of the air suction piece, and the other end of each air suction hole extends along the radial direction of the air suction piece and is communicated with the air outlet hole.

6. The lamination aid according to claim 2, wherein said suction port includes a suction slot communicating with said outlet aperture, said suction slot extending lengthwise in a predetermined direction.

7. A lamination aid according to claim 4 or claim 6 wherein the predetermined direction is parallel to the width direction of the diaphragm.

8. The lamination assist mechanism according to claim 1, further comprising a support plate disposed on a side of the lamination station adjacent to the clamping station for supporting the diaphragm.

9. The lamination assist mechanism according to claim 8, wherein the support plate includes a horizontal support sub-plate disposed parallel to a horizontal plane and an inclined support sub-plate having one end connected to an end of the horizontal support sub-plate adjacent to the clamping station and an opposite end extending obliquely downward relative to the horizontal plane.

10. The lamination assist mechanism according to claim 1, wherein the suction assembly includes a support plate disposed on a side of the lamination station adjacent to the clamping station for supporting the diaphragm;

and the upper side of the bearing plate is provided with an air suction port communicated with the exhaust pipeline.

11. The lamination assist mechanism according to claim 10, wherein the support plate includes a horizontal support sub-plate and an inclined support sub-plate, the horizontal support sub-plate is disposed parallel to a horizontal plane, one end of the inclined support sub-plate is connected to an end of the horizontal support sub-plate near the clamping station, and an opposite end of the inclined support sub-plate extends obliquely downward relative to the horizontal plane;

the air suction port is formed in the horizontal bearing sub-board and/or the inclined bearing sub-board.

12. A lamination apparatus comprising a lamination device, a lamination gripper and a lamination assist mechanism as claimed in any one of claims 1 to 11;

the lamination device comprises a lamination platform, the lamination platform is arranged corresponding to the lamination station, the lamination clamping jaws are arranged corresponding to the clamping stations, and the lamination device is used for clamping the lamination units of the membranes of the clamping stations and stacking the lamination units to the lamination platform.

Images