CN219575703U - Stacking device and battery cell hot-pressing system - Google Patents

Abstract

The present application relates to the field of battery technology, and specifically provides a stacking device and a cell heat-pressing system. The stacking device includes: a retrieving mechanism, which is provided with multiple layers of retrieving components arranged in the vertical direction and can be lifted and lowered on the frame, and any adjacent two layers of retrieving components can move relatively to change the adjacent The layer spacing of the two-layer reclaiming components; the driving mechanism drives the reclaiming mechanism up and down, so that the reclaiming components of each layer can reclaim or unload materials. The stacking device provided by this application can quickly and automatically stack the materials conveyed by the conveyor line, and the number of single stacks is large, which effectively improves the stacking efficiency. Similarly, it can also quickly split multiple stacked materials. Applied in battery production, it improves the production efficiency of batteries in processes such as hot pressing.

Description

A stacking device and a cell heat-pressing system

technical field

The present application relates to the technical field of batteries, and in particular to a stacking device and a cell hot-pressing system.

Background technique

In the production process or application scenarios of many products, it is necessary to convert materials from horizontal arrangement to vertical stacking. For example, in battery production, some processes need to stack the cells for processing. For example, in the hot pressing process, in order to enhance the efficiency of hot pressing, it is usually necessary to stack and place the horizontally arranged cells delivered by the conveyor line, so that Multiple battery cells are stacked on the bracket vertically, and then a stack of stacked battery cells is put into the heat-pressing device for batch heat-pressing. After hot pressing, the stacked cells need to be reconverted into a horizontal arrangement and transported to the next process.

Therefore, increasing the number of materials stacked in each batch and accelerating stacking efficiency are also important factors to improve material production efficiency, such as cell heat-pressing efficiency.

Utility model content

In view of this, the embodiment of the present application is dedicated to providing a stacking device, which can quickly and automatically stack the materials conveyed by the conveying line, and has a large number of single stacks, which effectively improves the stacking efficiency. It is applied in battery production and improves It ensures the production efficiency of the battery cell in processes such as hot pressing.

The application provides a stacking device, comprising: a reclaiming mechanism, provided with a multi-layer retrieving assembly arranged vertically and liftably arranged on a frame, any adjacent two layers of the retrieving assembly can be Relatively moving to change the interlayer distance between any two adjacent layers of the reclaiming components; the driving mechanism drives the reclaiming mechanism up and down, so that the retrieving components of each layer can be reclaimed or unloaded.

In a possible implementation manner, any adjacent two layers of the retrieving components are connected by a telescopic structure, so that when the retrieving component on the uppermost layer moves, it will drive each of the retrieving components below it in turn. moving; the driving mechanism drives the uppermost reclaiming assembly up and down, so that the reclaiming assemblies of each layer can move up in sequence to form an open state in which the reclaiming assemblies of two adjacent layers have a first interval, It can also be descended sequentially to form a compressed state in which two adjacent layers of the reclaiming components have a second interval.

In a possible implementation manner, the retractable structure is a limiting sliding structure, including: a limiting connecting block, connected to the first of any two adjacent picking components, and is provided with a A chute extending in the vertical direction; a sliding connection piece, connected to the second of any two adjacent picking assemblies, arranged in the chute and capable of sliding along the chute.

In a possible implementation manner, the pick-up assembly includes two pick-up parts arranged opposite to each other at intervals along the first horizontal direction, and any two pick-up parts adjacent in the vertical direction pass through The limiting sliding structures are connected.

In a possible implementation manner, the driving mechanism includes a power element and two lifting elements that are both connected with the power element and move up and down. The two picking parts are connected so that the two picking parts move synchronously.

In a possible implementation manner, the picking part includes a base and a support fixed on the base, and the support is provided with one, two or more, two or more of the The supports are arranged along the second horizontal direction.

In a possible implementation manner, a guiding structure is provided on the frame, and the guiding structure guides the retrieving components of each layer to reciprocate vertically.

In a possible implementation manner, the guide structure includes two sets of slide rails arranged in the vertical direction, and the two pick-up parts in each pick-up assembly are respectively slidably arranged on the two sets of slide rails .

In a possible implementation manner, the sliding connection is a cam bearing follower.

The present application also provides a hot-pressing system for electric cells, including a conveying line for conveying electric cores and a stacking device as described in any one of the above items, the electric cores have a suspended part relative to the conveying line, and the retrieving mechanism grabs Or lift the suspended part to obtain the battery core.

According to the stacking device provided by the present application, its reclaiming mechanism has multi-layer retrieving components arranged in the vertical direction. Automatic stacking, when each reclaiming component moves down and places materials (such as batteries) on the conveyor line in turn, it can realize the splitting of multiple stacked materials. At the same time, the distance between any adjacent two layers of reclaiming components can be adjusted, so at the beginning, there is a small layer spacing between the retrieving components of each layer, and they are compressed together so that the overall height is also the same as that of the uppermost layer of retrieving components. The height is reduced to match the lower reclaiming height. In other words, when the reclaiming height remains unchanged, the number of layers of reclaiming components can be increased; It is also beneficial to increase the number of layers of reclaiming components, so that the number of materials stacked in a single batch can be increased. The layer spacing between the retrieving components of the obtained materials can be increased to facilitate the transfer of materials.

It can be seen that the stacking device provided by this application can not only quickly stack materials, but also increase the number of single stacks, effectively improving stacking efficiency; when applied to battery production, it not only improves the efficiency of stacking and feeding batteries, but also improves The production efficiency of batteries in processes such as hot pressing.

Description of drawings

FIG. 1 is a schematic diagram of a first angle of a stacking device in an embodiment of the present application;

Fig. 2 shows the schematic diagram of taking material assembly in the embodiment of the present application;

FIG. 3 is a schematic diagram of a second angle of the stacking device in the embodiment of the present application;

FIG. 4 is a schematic diagram of a limiting sliding structure in an embodiment of the present application.

In Figure 1-4:

1. Rack; 2. Battery cell; 3. Retrieving mechanism; 31. Retrieving assembly; 311. Base; 312. Support; 32. Limiting connection block; 33. Sliding connection; 4. Driving mechanism; 41. Power parts; 42. Lifting parts; 5. Slide rails.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some, not all, embodiments of the application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

First of all, it should be noted that the spatial relationship terms used in this application, such as "vertical direction" and "horizontal direction", match the actual direction of the product in use in this application, so as to facilitate description. When the actual use orientation of the product changes, spatial relational terms should be interpreted accordingly.

Please refer to accompanying drawing 1-4, the embodiment of the present application provides a kind of stacking device, comprises frame 1, material retrieving mechanism 3 and driving mechanism 4, and retrieving mechanism 3 is arranged on frame 1, and driving mechanism 4 is also arranged On the frame 1, it is used to drive the reclaiming mechanism 3 up and down. Wherein, the retrieving mechanism 3 is provided with a plurality of retrieving components 31 , and the multiple retrieving components 31 are arranged vertically and can be arranged on the frame 1 in a liftable manner. The reclaiming mechanism 3 is formed with a retrieving position for placing materials to be stacked (can be formed by a feeding part such as a feeding conveyor line that conveys the material to the reclaiming mechanism 3), when each retrieving assembly 31 is driven by the driving mechanism 4 When moving up in the vertical direction, the uppermost retrieving assembly 31 first moves up to the retrieving height (the retrieving assembly grabs the height of the material on the material level, such as the height of the feeding conveyor line), and reaches the reclaiming level After the material is obtained, the material continues to move upwards, and then the next retrieving component 31 moves up to the retrieving height to obtain the material from the retrieving position until the bottommost and last retrieving component 31 obtains the material. In this way, each pick-up assembly 31 moves up to sequentially pick up the conveyed materials (such as battery cells), so as to realize the stacking of multiple materials.

At the same time, any adjacent two-layer material taking assembly 31 can move relative to each other to change the interlayer distance between two adjacent layers of material taking assembly 31 . That is, a spacing adjustment structure is formed between any two layers of reclaiming assemblies 31 that are adjacent to each other in the vertical direction, which can be adjusted by variable pitch to change the layer spacing. Then in the initial state, or in other words, when the material is not obtained, there can be a very small layer spacing between the layers of reclaiming components 31, and they are compressed together, as shown in the reclaiming mechanism 3 on the right half of Fig. 1, so that all The overall height of the retrieving assembly 31 is also the height reduction of the uppermost retrieving assembly 31, which can match the lower retrieving height (the height of the feeding conveying line). Then, compared with the mechanism in which the pitch cannot be adjusted and the overall synchronous lifting of each picking assembly 31 is performed, the lower or original picking height can still be matched in the case of increasing the number of layers of picking assemblies 31 . In other words, on the basis of not needing to change the original reclaiming height (maintaining the original height of the feeding conveying line), the number of reclaiming components 31, that is, the number of layers, can be increased; When material, there is a higher moving space, as shown in the upper space of the retrieving mechanism 3 on the right half side in Fig. 1 and the left half side in Fig. 3, which is also conducive to increasing the number of layers of the retrieving assembly 31.

On the whole, after the reclaiming mechanism completes the retrieving, there is a certain distance between each retrieving assembly 31, which can be used for manipulators to extend into the layer interval and carry away the multi-layer materials as a whole. After that, each retrieving assembly 31 is empty. The load moves down, compresses the layer spacing, and draws in downwards until the uppermost layer of material retrieving assembly 31 is also lower than the retrieving level, that is, enters the level to be reclaimed, so that once retrieving and feeding is completed.

In this way, through the variable distance adjustment performance of the different layer reclaiming components 31 in the vertical direction, the reclaiming mechanism 3 of the present application is compared with a mechanism that has multiple reclaiming parts but the distance between the reclaiming parts is fixed. , more number/layers of reclaiming components 31 can be provided in the vertical direction, and more materials can be stacked in a single batch. The stacking device of the present application has a faster stacking speed than using a manipulator to individually grab materials and place them on a stacking frame, and has a lower space limitation than a device with a fixed layer spacing of the picking assembly 31 , can match the lower reclaiming height with more reclaiming components 31 quantity, can have more layers of retrieving components 31 without changing the reclaiming height, and can increase the material stacked in a single batch Quantity, effectively improve the stacking efficiency.

When applied to battery production, in the initial state of the retrieving mechanism 3, which can also be said to be the idle state when the batteries are not stacked, the layer spacing of each retrieving assembly 31 is very small, and the whole is gathered together, and the overall height is lower than that of the retrieving unit 31. Material level height. When retrieving and stacking the electric cores, the conveying line conveys the electric cores to the retrieving position at the retrieving mechanism 3, and under the drive of the drive mechanism 4, each retrieving assembly 31 moves up to obtain the electric cores in sequence (every time there is one After the retrieving component 31 obtains a cell, the conveying line will transport the next cell to the retrieving position, and then the next retrieving component 31 that moves up will obtain the cell). During the upward movement, the distance between the retrieving components 31 of each layer is increased, so as to facilitate the retrieving of materials in sequence, and the battery cells transported by the conveying line are stacked vertically. As shown in the reclaiming mechanism 3 on the left half side in Fig. 1 and the right half side in Fig. 3, the layer spacing of each layer of retrieving components 31 after obtaining the electric core is greater than the layer spacing before retrieving, and each layer of retrieving components 31 It is in an open state with a gap, so that the battery cells are transferred to the next station (hot pressing device) by other devices such as clamps.

It can be seen that the stacking device provided by the present application can not only quickly stack materials, but also increase the number of single stacks, effectively improving the stacking efficiency. Applying the stacking device to battery production not only improves the efficiency of battery cell stacking and feeding, but also improves the production efficiency of battery cells in processes such as hot pressing.

At the same time, in battery production, the battery cells stacked by the stacking device will be moved from the handling device into the hot-pressing device, and the stacked batteries will be subjected to multi-layer synchronous hot-pressing in the hot-pressing device. The stacked batteries are taken out, and then the batteries need to be placed on the conveyor line one by one, and then transported to the next process one by one by the conveyor line. The stacking device provided by the present application can also unstack and feed stacked battery cells. For example, first take out the piles of electric cores by the handling device and make a distance between each electric core, so that each layer of electric cores is opposite to each layer of retrieving assemblies 31 (each retrieving assembly 31 is in an open state, with Larger layer spacing, so that the battery cells are put in), and then each battery cell can be put into each retrieving assembly 31. Each pick-up assembly 31 is fixed with one electric core. Then each retrieving assembly 31 moves down with the material, and each layer of retrieving assembly 31 will move down to the retrieving height in turn to place the material to the discharge position (the discharge position is formed by the unloading receiving parts such as the unloading conveyor line), Convert multiple materials stacked vertically to be arranged horizontally on the unloading conveyor line to realize unstacking and unloading of multiple batteries of different heights.

Since the stacking device of the present application has more reclaiming components 31, when unloading and unloading stacked multiple materials such as stacked electric cores after hot pressing, the quantity of materials disassembled in a single batch is also the same. There are many, and the grabbed materials are sequentially placed on the same feeding conveying line through the successive downward movement of each feeding assembly 31, so as to realize the rapid unloading of materials of different heights.

As shown in the accompanying drawings, in some embodiments, at least two groups of retrieving mechanisms 3 on the frame 1 can be provided, and at least two groups of driving mechanisms 4 can be provided as well, and the driving mechanism 4 and the retrieving mechanism 3 can be provided in one-to-one correspondence. , so that each set of retrieving mechanisms 3 can operate independently, different retrieving mechanisms 3 stack materials alternately, and provide stacked materials alternately or sequentially, which can further improve stacking efficiency and feeding efficiency.

In the retrieving mechanism 3, in the vertical direction, any adjacent two-layer reclaiming assembly 31 is connected by a telescopic structure, so that the adjacent two-layer reclaiming assembly 31 has a relative movement amount in the vertical direction, through Relative movement changes the layer spacing. At the same time, they are connected by a telescopic structure, so that although the material taking components 31 of each layer have relative movement, they are still connected to each other to form a whole. Then, when the uppermost layer of material picking assembly 31 moves, it will drive the material picking components 31 of each layer below it to move sequentially. The driving mechanism 4 only needs to be connected with the uppermost layer reclaiming assembly 31 and drive the uppermost layer reclaiming assembly 31 up and down, so that the reclaiming assemblies 31 of each layer can be moved upward and reclaimed sequentially, and discharged or compressed sequentially.

In detail, when the drive mechanism 4 drives the uppermost layer of material extraction assembly 31 to move upward, the uppermost layer of material extraction assembly 31 will first move a certain distance relative to the second layer of material extraction assembly 31 below (that is, the maximum relative movement amount), Then the second layer of material retrieving assembly 31 can be pulled to move up, and after the second layer of material retrieving assembly 31 moves a certain distance relative to the third layer of material retrieving assembly 31, the third layer of material retrieving assembly 31 can be pulled to move up, so that pulling in turn, each layer The material taking assembly 31 can move up successively, and take material successively. At this time, the distance between any two adjacent layers of the retrieving components 31 is the maximum layer distance, which can be recorded as the first distance, and this state is called the opened state. In this way, after each layer of retrieving components 31 moves up and acquires materials, it is in an open state, and there is enough space between two adjacent layers of retrieving components 31 to accommodate materials and facilitate the insertion of other handling components to remove materials.

And treat that material is removed, or when needing unloading, driving mechanism 4 drives the taking-up assembly 31 of top floor to move down, and top floor take-off assembly 31 moves down a certain distance (maximum relative movement) relative to second-layer take-off assembly 31. After measuring), it will be offset against the second-layer reclaimer assembly 31, and then it will press against or push the second-layer reclaimer assembly 31 to move down together, and the second-layer reclaimer assembly 31 will press against the third-layer reclaimer assembly 31. In this way, each layer of retrieving components 31 is compressed together and is in a compressed state, and there is a smaller interlayer distance between two adjacent layers of retrieving components 31, which can be recorded as the second distance. The second spacing is smaller than the first spacing, and the entire retrieving mechanism 3 is in a compressed state, as shown in the retrieving mechanism 3 on the left side of Figure 2, the overall height is low, and the overall synchronous lifting of each retrieving assembly 31 cannot be adjusted compared to the spacing The mechanism, the stacking device of the present application can still match lower or original material retrieval heights under the situation of increasing the number of layers of material retrieval components 31, it can also be said that without changing the original material retrieval height, it can have more There are 31 layers of reclaiming components, which increases the stacking quantity of a single batch of materials.

As shown in FIG. 2 and FIG. 4 , in some embodiments, the retractable structure is a limiting sliding structure, which specifically includes a limiting connecting block 32 and a sliding connecting piece 33 . In the vertical direction, any adjacent two layers of material taking assemblies 31 are connected through a limiting sliding structure. And the limit connection block 32 is connected with the first one in every two material taking assemblies 31, such as the higher one (the position is higher than the other in the vertical direction), and is provided with a chute extending in the vertical direction ; The sliding connecting piece 33 is connected with the second one of every two retrieving components 31, for example, the lower one, and is arranged in the chute, and can slide along the chute. One end of the sliding connecting piece 33 is fixedly connected with the fetching assembly 31 , and the other end is slidingly connected in the chute, so that the fetching assembly 31 connected thereto and the fetching assembly 31 connected with the limiting connection block 32 can slide relatively. It can also be said that, except for the uppermost layer reclaiming assembly and the lowermost reclaiming assembly, each layer of retrieving assembly 31 between the two layers is fixed with a limit connection block 32 and a sliding connection piece 33, through the limit connection block 32 and The sliding connectors 33 are respectively connected to the upper and lower layers of the fetching assembly 31 adjacent to it, for example, the sliding connectors 33 on the upper layer of the fetching assembly 31 are connected through the limit connecting block 32, and the sliding connectors 33 are connected to the sliding connectors 33. The position-limiting connecting blocks 32 on the material taking assembly 31 of the next layer are connected to each other. However, the uppermost material taking assembly 31 only needs to be connected with the lower material taking assembly 31 through a limit sliding structure, and is connected to the power part 41 of the driving mechanism 4 through transmission. The material taking assembly 31 on the bottom layer is connected with the material taking assembly 31 on the upper layer through a limiting sliding structure.

In this way, every two adjacent pick-up assemblies 31 can move relative to each other for a certain distance, and when the sliding connector 33 moves to the end of the chute, it will be offset against the upper-layer pick-up assembly 31 and be driven by the upper-layer pick-up assembly 31 , so that the entire reclaiming mechanism 3, that is, all reclaiming components 31, has an expanded state and a compressed state.

The limit connection block 32 can be in the shape of a strip and arranged along the vertical direction. In some embodiments, the chute can be a long through hole, and the sliding connection 33 can be a cam bearing follower. A cam bearing follower consists of a bolt, a roller, and a roller positioned between the end of the bolt and the roller. In this way, when the cam bearing follower moves up and down in the chute, it will roll relative to the chute to reduce the frictional force.

Certainly, in other embodiments, the limiting sliding structure may also include a slide rail, a sliding block and a limiting block. One end of the slide rail is connected with one layer of material taking assembly 31, and the limit block is arranged at the other end of the slide rail.

Two adjacent layers of reclaiming components 31 can be connected through a limit sliding structure to perform distance adjustment. In some other embodiments, the retractable structure can also be a hinge structure or a connecting rod structure. For example, at least two hinges or connecting rods are arranged between every adjacent two layers of material taking assemblies 31. The retrieving components 31 are hinged, so that when the driving mechanism 4 drives the uppermost retrieving component 31 to move up or down, the remaining retrieving components 31 will also move sequentially, and can realize the opened state with the first distance and A compressed state with a second spacing.

The retrieving component 31 obtains the material, which can be grasped or lifted. The pick-up component 31 may be provided with, but not limited to, jaws, suction cups and the like.

In some embodiments, the retrieving assembly 31 includes two opposite retrieving parts, and the two retrieving parts are used to obtain the material placed on the retrieving position during the upward movement process, and take the material on the material after retrieving. Moving, materials such as batteries are placed flat on the two pick-up parts. Each layer of material extraction assembly 31 includes two material extraction parts arranged opposite to each other along the first horizontal direction, forming two rows of material extraction parts facing each other at intervals and arranged from top to bottom. In each row, any two vertically adjacent fetching parts are all connected by the above-mentioned telescopic structure, and the two fetching parts of the uppermost layer fetching assembly 31 move synchronously, then the fetching parts of each layer are Driven in turn will move synchronously to maintain stability.

The material taking position can be formed between two rows of material taking parts, that is, the material feeding part, such as a feeding conveying line, transports the material between the two rows of material taking parts. When the two pick-up parts of each layer move to the pick-up height, they jointly take the material from the pick-up position. The material picking position can also be formed on one side of the two rows of material picking parts. In such an embodiment, the material picking parts can be jaws or suction cups, which grab and fix the material from one side of the material.

When the pick-up position is between two rows of pick-up parts, the pick-up parts can be jaws, suction cups, or support parts for lifting materials. When moving up to obtain materials, the supporting parts on both sides lift the materials from bottom to top and take them away. After each layer lifts the materials, the stacking is completed.

Taking stacked cells as an example, the cells are sent to the pick-up position sequentially by the conveyor line. Each cell protrudes from the conveyor line with a suspended area, and the two columns of support parts are located on both sides of the conveyor line. When the cells move When it is between the two rows of supporting parts and is at the material picking position, the suspended areas on both sides of the battery cell are opposite to the supporting parts on both sides. When the two supporting parts of each layer move up to the height of the conveying line, they will be offset against the suspended area of the battery core from bottom to top to lift the battery core, and then lift the battery core to move upward. Whenever the two supporting parts of one layer of reclaiming assembly 31 lift the cell on the retrieving level, the conveying line moves to send the next cell to the retrieving position, and then the two retrieving components 31 of the next layer The supporting part lifts the cell. After the supporting parts of each layer lift the battery cores, the operation of converting multiple horizontally transported battery cores into vertically spaced and stacked ones is realized, which is very convenient for handling parts to stack each layer of battery cores The state is removed synchronously, and sent into the hot-pressing device, and the hot-pressing parts of the hot-pressing device jointly press the stacked multiple batteries, so that the simultaneous hot-pressing of a large number of batteries can be completed at a time.

When the pick-up part is a support part, it includes at least one support member 312 , for example, the pick-up part includes a base 311 and a support member 312 fixed on the base 311 . There can be one support member 312, or two or more. When at least two support members 312 are provided, at least two support members 312 are fixed on the base 311 and arranged along the second horizontal direction. In this way, each supporting member 312 of each material picking part is fixed on the same base 311, and is driven and moved synchronously, which can ensure stability. At the same time, each material is smoothly lifted and supported by at least four support members 312, which has good stability and can maintain a high level. The support member 312 may be a plate-like structure, and the top surfaces of the support members 312 of each layer of the material taking assembly 31 jointly form a lifting support surface.

The support member 312 can be block-shaped, such as a support block, or plate-shaped, such as a support plate, or other shapes, but no matter what shape it is, it has a flat lifting surface to lift and support materials smoothly.

The driving mechanism 4 needs to drive the two picking parts of the uppermost layer picking assembly 31 to move synchronously, which can include a power part 41 and two lifting parts 42 that are all connected to the power output end of the same power part 41. The part 42 moves up and down synchronously on the frame 1 under the drive of power, and is connected with the two fetching parts respectively, so as to realize the synchronous driving of the two fetching parts. The two fetching parts of the uppermost layer fetching assembly 31 move synchronously, and when the relative sliding structures between the fetching parts of each layer are all the same (parts and sizes are all the same), the same layer of fetching assembly 31 can be driven. The two pick-up parts move synchronously to ensure the levelness of the lifting support surface jointly formed by multiple support members 312 on each layer.

The power part 41 can be but not limited to a motor, and the lifting part 42 can be a synchronous belt. As shown in FIGS. 1 and 4 , the frame 1 is in the shape of a frame, the power element 41 is arranged on the top of the frame 1 , and two lifting elements 42 are arranged on both sides of the frame 1 . When the lifting member 42 is a synchronous belt, it can extend from the top of the frame 1 to the bottom, which is not only convenient for setting, but also has a long stroke, which is very convenient to drive the retrieving assembly 31 to move up and down.

Further, the frame 1 is provided with a guiding structure for guiding the material taking components 31 of each layer, and the guiding structure guides the material taking components 31 of each layer to reciprocate in the vertical direction, so as to ensure the accuracy of the moving direction of the material taking components 31 of each layer. Sex, to prevent the feeding part from skewing.

When the pick-up assembly 31 includes two pick-up parts arranged at intervals along the horizontal first direction, the guide structure includes two sets of slide rails 5 arranged in the vertical direction, and the two pick-up parts in each pick-up assembly 31 are , respectively slidingly arranged on two sets of slide rails 5 . That is to say, in each material fetching mechanism 3 , two sets of slide rails 5 correspond to two rows of fetching parts one by one, and each fetching part in the same row is slidably arranged on the same set of slide rails 5 . Two sets of slide rails 5 are arranged on both sides of the retrieving mechanism 3, each set of slide rails 5 corresponds to a row of retrieving parts, and in each set of slide rails 5, the number of slide rails 5 can be one, two or more, Each slide rail 5 extends along the vertical direction. The slide rails 5 in the same group are arranged along the second horizontal direction. The base 311 of the material taking part is all fixedly connected with the slide blocks on each slide rail 5 in the same group, and slides smoothly on each slide rail 5 .

Embodiments of the present application also provide a cell hot-pressing system, including the stacking device described in any one of the above embodiments and a conveying line for conveying the electric core, the electric core has a suspended part relative to the conveying line, and the material is taken out Mechanism 3 grabs or lifts the suspended part to obtain battery cells and stack them. Then the stacking device cooperates with the conveying line to realize the automatic stacking and automatic unloading of the battery cells. And the stacking efficiency is high, and the number of cells stacked in a single batch is large, which improves the overall efficiency of the cell hot-pressing process. The derivation process of the beneficial effect is basically the same as the derivation process of the above-mentioned beneficial effect of the stacking device, and will not be repeated here.

The basic principles of the present application have been described above in conjunction with specific embodiments, but it should be pointed out that the advantages, advantages, effects, etc. mentioned in the application are only examples rather than limitations, and these advantages, advantages, effects, etc. Various embodiments of this application must have. In addition, the specific details disclosed above are only for the purpose of illustration and understanding, rather than limitation, and the above details do not limit the application to be implemented by using the above specific details.

The components and devices involved in this application are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the drawings. As will be appreciated by those skilled in the art, these components, devices may be connected, arranged, configured in any manner. Words such as "including", "comprising", "having" and the like are open-ended words meaning "including but not limited to" and may be used interchangeably therewith. As used herein, the words "or" and "and" refer to the word "and/or" and are used interchangeably therewith, unless the context clearly dictates otherwise. As used herein, the word "such as" refers to the phrase "such as but not limited to" and can be used interchangeably therewith.

It should also be pointed out that in the device and equipment of the present application, each component can be decomposed and/or reassembled. These decompositions and/or recombinations should be considered equivalents of this application.

The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects without departing from the scope of the application. Thus, the present application is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The foregoing description has been presented for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of the application to the forms disclosed herein. Although a number of example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof.

The above is only a preferred embodiment of the application, and is not intended to limit the application. Any modifications, equivalent replacements, etc. made within the spirit and principles of the application shall be included in the protection scope of the application. within.

Claims (10)

1. A stacking device, comprising:

the material taking mechanism is provided with a plurality of layers of material taking assemblies which are arranged along the vertical direction and are arranged on the rack in a lifting manner, and any two adjacent layers of material taking assemblies can relatively move so as to change the layer spacing between any two adjacent layers of material taking assemblies;

and the driving mechanism drives the material taking mechanism to lift so as to take or unload the material taking assembly of each layer.

2. The stacking device of claim 1 wherein any two adjacent layers of said take-off assemblies are connected by a telescoping structure such that movement of the uppermost layer of said take-off assemblies causes sequential movement of each of said take-off assemblies thereunder;

the driving mechanism drives the uppermost material taking assembly to lift, so that each layer of material taking assembly can sequentially move upwards to form an open state of two adjacent layers of material taking assemblies with a first interval, and can also sequentially descend to form a compressed state of two adjacent layers of material taking assemblies with a second interval.

3. The stacking device of claim 2 wherein the telescoping structure is a limit slide structure comprising:

the limiting connecting block is connected with a first one of any two adjacent material taking assemblies and is provided with a chute extending along the vertical direction;

and the sliding connecting piece is connected with the second one of any two adjacent material taking assemblies, is arranged in the sliding groove and can slide along the sliding groove.

4. A stacking device as claimed in claim 3 wherein said take-out assembly includes two take-out portions spaced apart and opposed in a first horizontal direction, any two of said take-out portions adjacent in a vertical direction being connected by said limited slip arrangement.

5. The stacking device as claimed in claim 4, wherein the driving mechanism comprises a power member and two lifting members which are connected with the power member and move up and down, and the two lifting members are respectively connected with the two material taking portions of the uppermost material taking assembly so as to enable the two material taking portions to move synchronously.

6. The stacking device of claim 4 wherein said take-out section comprises a base and a support member secured to said base, said support member being provided with one, two or more of said support members being aligned in a horizontal second direction.

7. The stacking device of claim 1 wherein said frame is provided with guide structures for guiding each of said layers of said take out assembly to reciprocate in a vertical direction.

8. The stacking device of claim 7 wherein said guide structure comprises two sets of vertically disposed slide rails, and two take-out portions of each of said take-out assemblies are slidably disposed on each of said two sets of slide rails.

9. A stacking device as claimed in claim 3 wherein said sliding connection is a cam bearing follower.

10. A hot pressing system for electrical core, comprising a conveyor line for conveying electrical core and a stacking device according to any one of claims 1-9, wherein the electrical core has a suspended portion relative to the conveyor line, and the material taking mechanism grabs or lifts the suspended portion to obtain the electrical core.