WO2023213192A1 - 片料转移装置及电芯生产设备 - Google Patents

片料转移装置及电芯生产设备 Download PDF

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Publication number
WO2023213192A1
WO2023213192A1 PCT/CN2023/089397 CN2023089397W WO2023213192A1 WO 2023213192 A1 WO2023213192 A1 WO 2023213192A1 CN 2023089397 W CN2023089397 W CN 2023089397W WO 2023213192 A1 WO2023213192 A1 WO 2023213192A1
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WO
WIPO (PCT)
Prior art keywords
pieces
picking
sheet
transfer device
sheet material
Prior art date
Application number
PCT/CN2023/089397
Other languages
English (en)
French (fr)
Inventor
姚军付
杨鹏飞
Original Assignee
无锡先导智能装备股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by 无锡先导智能装备股份有限公司 filed Critical 无锡先导智能装备股份有限公司
Publication of WO2023213192A1 publication Critical patent/WO2023213192A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G61/00—Use of pick-up or transfer devices or of manipulators for stacking or de-stacking articles not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/22—Devices influencing the relative position or the attitude of articles during transit by conveyors
    • B65G47/24—Devices influencing the relative position or the attitude of articles during transit by conveyors orientating the articles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/058—Construction or manufacture
    • H01M10/0585—Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/005—Devices for making primary cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/14—Cells with non-aqueous electrolyte
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/02—Articles

Definitions

  • the invention relates to the technical field of lithium battery equipment, and in particular to a sheet material transfer device and battery core production equipment.
  • the lamination unit composed of pole pieces, separators or pole pieces and separators generally needs to be transported to a designated position by a conveyor belt, and then grabbed from the conveyor belt by a picking mechanism and transferred to Stacking is performed on the stacking table.
  • the picking mechanism When the picking mechanism transfers the pieces, it needs to first move above the conveyor belt and then lower to the conveying belt to pick up the pieces. For the picking mechanism that uses a vacuum suction cup to pick up the pieces, vacuum preparation is also required. Therefore, the material retrieval mechanism does not continuously retrieve materials, so the conveyor belt also needs to be transported in a stepwise manner to cooperate with the material retrieval mechanism.
  • the conveyor belt will be transported forward for a certain distance, and then it will stop waiting for the picking mechanism to pick up the next piece of material. In this cycle, multiple pieces of material on the conveyor belt can be taken away in sequence.
  • the step-by-step conveying method will reduce the incoming efficiency of the sheet materials, resulting in a reduction in the production efficiency of the battery cells.
  • a piece transfer device including:
  • a conveying mechanism capable of conveying sheet materials in a preset direction
  • the pickup mechanism includes a transfer component and a grabber.
  • the transfer component can drive the grabber to accelerate from the starting position to the pickup position, and at the pickup position, it is in contact with the conveyor mechanism. The speed is kept consistent in the preset direction, and the starting position and the picking position are spaced apart along the preset direction;
  • the grabber can grab the piece of material at the material picking position, and drive the transfer component to move the piece of material.
  • the grabbed pieces of material are transferred to the unloading position, and the transfer assembly can also drive the grabbing member to return to the starting position from the picking position.
  • the conveying mechanism can convey the sheet material at a constant speed at a preset speed.
  • the transfer component takes a first time for the transfer component to drive the grabber from the starting position through the picking position and the unloading position and back to the starting position; so
  • the conveying mechanism requires a second length of time to feed the center distance of two adjacent pieces, and the first length of time is equal to the second length of time, and the piece transfer device is provided with one of the picking mechanisms.
  • the conveying mechanism requires a second length of time to feed the center distance between two adjacent pieces of material, and the first length of time is N times the second length of time, and N is an integer greater than 1;
  • the sheet material transfer device is provided with N pieces of the material taking mechanisms, and the N pieces of the material taking mechanisms are respectively arranged on N workstations spaced along the preset direction, and each of the workstations is equipped with There is the starting position, the picking position and the unloading position.
  • the conveying mechanism requires a second length of time to feed the center distance between two adjacent pieces of material, and the first length of time is N times the second length of time, and N is an integer greater than 1;
  • the sheet material transfer device is provided with N pieces of said picking up mechanisms, the N pieces of said picking up mechanisms are disposed at the same work station, and the grabbing pieces of the N pieces of said picking up mechanisms can be used as the said first Two periods of time are used as intervals to alternately move to the starting position, the picking position and the unloading position.
  • the transfer component includes a first driving member, a second driving member and a third driving member, and the first driving member, the second driving member and the third driving member can respectively The grabbing member is driven to move along a first direction, a second direction and a third direction that are perpendicular to each other, and the first direction is parallel to the preset direction.
  • a kind of battery core production equipment including:
  • a tableting device for preparing tablets and outputting the prepared tablets to the conveying mechanism
  • it also includes a stacking manipulator and a correction platform disposed at the unloading position.
  • the correction platform can receive the alignment of the sheets transferred to the unloading position by the sheet transfer device. correct the deviation of the material,
  • the lamination robot can transfer the sheet materials from the correction platform to the lamination table for stacking.
  • the lamination table is located between the two sheet material transfer devices.
  • the two sheet material transfer devices are respectively used to transfer two polarities.
  • the opposite piece of material is transferred to the unloading position.
  • the sheet material transfer device is provided with N pieces of the material picking mechanisms, and the N pieces of the material picking mechanisms are respectively arranged on N work stations spaced apart along the preset direction.
  • the sheet material transfer device is provided with N pieces of the material taking mechanisms, and the N pieces of the material taking mechanisms are provided at the same work station, and the stacking table is provided with one and N pieces of the material taking mechanisms.
  • the pieces of material transferred to the unloading position by the material pickup mechanism are all stacked on one of the stacking tables.
  • the transfer component first drives the grabber to accelerate from the starting position to the picking position, and at the picking position, it is in contact with the conveying mechanism.
  • the speed is kept consistent in the preset direction, so the grabber can grab the piece of material during the operation of the conveyor mechanism.
  • the grabber is driven by the transfer assembly to move to the unloading position and place the piece of material in the unloading position for subsequent lamination operations.
  • the vacated grabber is driven back to the starting position by the transfer assembly to grab the next piece of material.
  • the material taking mechanism can realize the sequential taking of multiple pieces of material.
  • the conveyor mechanism can keep running without stopping while the pieces are being picked. Therefore, the efficiency of incoming sheet materials is improved, thereby improving the production efficiency of battery cells.
  • Figure 1 is a schematic diagram of battery cell production equipment in a preferred embodiment of the present invention
  • FIG 2 is a schematic diagram of the sheet material transfer device in the battery cell production equipment shown in Figure 1;
  • FIG 3 is a schematic structural diagram of the material retrieval mechanism in the sheet material transfer device shown in Figure 2;
  • FIGS 4 to 8 are schematic diagrams of state changes during the working process of the sheet material transfer device shown in Figure 2;
  • Figure 9 is a schematic diagram of battery core production equipment in the second embodiment of the present invention.
  • Figure 10 is a schematic diagram of battery cell production equipment in the third embodiment of the present invention.
  • first and second are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as “first” and “second” may explicitly or implicitly include at least one of these features.
  • “plurality” means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.
  • connection In the present invention, unless otherwise clearly stated and limited, the terms “installation”, “connection”, “connection”, “fixing” and other terms should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. , or integrated into one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interactive relationship between two elements, unless otherwise specified restrictions. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
  • a first feature being “on” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. touch.
  • the terms “above”, “above” and “above” the first feature is above the second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature.
  • "Below”, “below” and “beneath” the first feature to the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature has a smaller horizontal height than the second feature.
  • the present invention provides a battery core production equipment 10 and a sheet material transfer device 100.
  • the battery core production equipment 10 includes a sheet material transfer device 100, a production device (not shown) and a lamination table 200.
  • the film making device can prepare the sheet materials 20 required for battery core lamination.
  • the material transfer device 100 can transfer the sheet materials 20 prepared by the film making device to the unloading position.
  • the sheet materials 20 in the unloading position can finally be placed on the lamination table 200 Stack them on and prepare a battery core.
  • the sheet material 20 may be a pole piece, a diaphragm piece, or a stacked unit composed of a pole piece and a diaphragm.
  • the film making device can provide different types of sheet materials.
  • the core production equipment 10 can adopt a Z-shaped lamination process, and the sheet material 20 can be a lamination unit formed by a pole piece or a composite of a pole piece and a separator.
  • the battery core production equipment 10 also includes an unwinding mechanism (not shown). The unwinding mechanism is used to unwind the separator tape or the composite tape formed by combining the separator tape and the pole piece onto the stacking table 200 . By making the laminating table 200 and the unwinding mechanism move back and forth relative to each other, the diaphragm tape or the composite material tape can be laid in a Z-shape on the laminating table 200 .
  • the battery core production equipment 10 can also adopt a cutting and stacking process, and the sheet material 20 can be a lamination unit formed by a composite of pole pieces and separators.
  • the laminated unit includes two types with opposite polarity, which are composed of positive electrode sheets, negative electrode sheets and separators. At this time, there is no need for an unwinding mechanism to lay the separator tape in a Z-shape. Instead, lamination units with opposite polarities are directly placed alternately on the lamination table 200 to form a battery core in which positive electrodes, separators, and negative electrodes are alternately stacked.
  • the lamination table 200 is located between the two sheet material transfer devices 100.
  • the two sheet material transfer devices 100 are respectively used to transfer two pieces of sheet materials with opposite polarities. 20Transfer to the unloading position.
  • the two opposite polarity sheet materials 20 may be negative electrode sheets and positive electrode sheets, or they may be laminated units formed by combining the positive electrode sheets and the negative electrode sheets with separators respectively.
  • only one sheet transfer device 100 may be provided.
  • the sheet transfer device 100 includes a conveying mechanism 110 and a picking mechanism 120 .
  • the conveying mechanism 110 can adopt a belt conveying line and can convey the sheet material 20 in a preset direction.
  • the preset direction refers to the left-right direction shown in Figure 2.
  • the tablets 20 prepared by the tableting device can be transferred to the conveying mechanism 110 and transported downstream under the driving of the conveying mechanism 110 .
  • the conveying mechanism 110 may convey the sheet material 20 in a stepwise manner or in a continuous conveying manner.
  • the conveying mechanism 110 can convey the sheet material 20 at a constant speed at a preset speed. Since the conveying mechanism 110 does not stop during the uniform conveying process, it can ensure that the sheet material 20 comes from material efficiency.
  • the material picking mechanism 120 includes a transfer component 121 and a grabber 122 .
  • the grabbing member 122 may be a suction cup, a clamping claw, or other mechanism capable of grabbing and releasing the sheet 20 .
  • the transfer assembly 121 can drive the grabber 122 to move in multiple directions, thereby driving the grabber 122 to switch between various positions.
  • the transfer component 121 includes a first driving member 1211, a second driving member 1212, and a third driving member 1213.
  • the first driving member 1211, the second driving member 1212, and the third driving member 1213 can
  • the grabbing member 122 is respectively driven to move along the first direction, the second direction and the third direction that are perpendicular to each other, and the first direction is parallel to the preset direction.
  • the specific structures of the first driving member 1211 , the second driving member 1212 and the third driving member 1213 can be the same, and they can all be cylinder driving mechanisms with guide rails or threaded screw pair mechanisms.
  • the grabbing member 122 can be installed on the mounting bracket 123 through the mounting bracket 123 .
  • the second direction refers to the direction perpendicular to the plane of the drawing shown in Figure 2
  • the third direction refers to the up and down direction shown in Figure 2.
  • the transfer component 121 may also be a multi-degree-of-freedom manipulator.
  • the transfer component 121 can also be provided with a rotational drive component to drive the grabber 122 to rotate.
  • the work station where the material picking mechanism 120 is located is provided with a starting position and a picking position spaced apart along the above-mentioned preset direction, and the starting position is located upstream of the picking position. For example, if the conveying mechanism 110 conveys from left to right, the starting position is located on the left side of the picking position.
  • the transfer assembly 121 can drive the grabber 122 to accelerate from the starting position to the picking position, and maintain the same speed as the conveying mechanism 110 in the preset direction at the picking position.
  • the grabbing member 122 is synchronized with the sheet material 20 conveyed by the conveying mechanism 110 in the preset direction, so that the sheet material 20 can be grasped during the operation of the conveying mechanism 110 .
  • the conveying mechanism 110 can keep running without stopping when the sheet 20 is grabbed.
  • the conveying mechanism 110 for continuous conveying can always maintain a state of uniform conveying; and for the conveying mechanism 110 for step conveying, since the grabbing part 122 can follow the movement of the piece of material 20 to be grasped, the conveying mechanism 110 does not need to pause to stop. Waiting for the lifting and lowering of the grabber 122, translation into position and sufficient vacuum preparation, so the pause time can also be significantly shortened.
  • the conveying efficiency of the conveying mechanism 110 is improved, and the feeding efficiency of the sheet material 20 is also improved.
  • the conveying efficiency of the conveying mechanism 110 is not limited by the material picking mechanism 120, the tableting device does not need to reduce the efficiency of the tableting device in order to match the conveying efficiency of the conveying mechanism 110. In this way, the efficiency of the film-making device is released.
  • the grabbing member 122 is driven by the transfer assembly 121 to move to the unloading position, and the piece of material 20 is placed in the unloading position for subsequent lamination operations.
  • the vacated grabbing member 122 is driven by the transfer assembly 121 to return to the starting position in preparation for grabbing the next piece of material 20 .
  • the material taking mechanism 120 can realize Multiple tablets 20 are taken out in sequence.
  • the picking mechanism 120 picks up the piece of material 20
  • the grabbing member 122 moves to the starting position
  • the piece of material 20 to be picked is also transported to a specific position, which is called the starting position of the piece of material.
  • the grabber 122 completes the transfer of the previous piece 20 and returns to the starting position
  • the next piece 20 is also just transported to the piece. initial position. Normally, the picking position overlaps with the initial position of the pole piece.
  • the transfer component 121 of the picking mechanism 120 drives the grabbing member 122 to accelerate from the A position shown in FIG. 4 , which is the above-mentioned starting position, and the piece of material 20 to be grabbed is also transported to the A position, that is, Initial position of the sheet material; when the grabber 122 accelerates to the B position shown in Figure 5, the speed of the grabber 122 in the preset direction is the same as the transport speed of the conveyor mechanism 110, and the sheet material 20 to be grabbed It is also transported to position B; then, the grabber 122 starts to descend driven by the transfer assembly 121, and while descending, the speed in the preset direction is still the same as the transportation speed of the transportation mechanism 110, until it reaches Figure 6
  • the C position is shown and is in contact with the sheet 20; the grabber 122 resists the sheet 20 and then moves with the sheet 20.
  • vacuum preparation can be performed and the sheet can be moved to the D position shown in Figure 7.
  • 20 grabbing, position D is the above-mentioned picking position.
  • the transfer assembly 121 drives the grabber 122 to the unloading position shown in Figure 8, and the grabber 122 puts down the grabbed sheet 20; then, transfer The assembly 121 will drive the grabber 122 back to the A position shown in Figure 4, that is, the starting position. At this time, the next pole piece 20 to be grabbed is also transported to position A.
  • the working process of the material picking mechanism 120 may also be different.
  • the grabber 122 accelerates and moves from position A to position B, the grabber 122 simultaneously descends and prepares for vacuum.
  • the grabber 122 moves to position B, the grabber 122 just contacts the piece of material 20 and the vacuum preparation is completed.
  • the grabbing member 122 can complete grabbing the piece of material 20 at the B position, so the B position is used as the above-mentioned picking position.
  • the grabber 122 is simultaneously prepared for vacuuming, and when the grabber 122 moves to the C position, the grabber 122 just contacts the sheet 20 And the vacuum preparation is completed. At this time, the grabbing member 122 can complete grabbing the piece of material 20 at the C position, so the C position is used as the above-mentioned picking position.
  • the battery cell production equipment 10 also includes a stacking robot (not shown) and a correction platform 300 disposed at the unloading position.
  • the correction platform 300 can receive a sheet material transfer device. 100 transfers the sheet material 20 to the unloading position and corrects the sheet material 20, and the lamination robot can transfer the sheet material 20 from the correction platform 300 to the lamination table 200 for stacking.
  • the correction platform 300 can drive the sheet 20 to rotate and translate. Thus, the position correction of the sheet material 20 is achieved, and the position correction of the sheet material 20 is beneficial to improving the accuracy of lamination.
  • the correction platform 300 can be omitted, and the stacking table 200 is set at the unloading position, and the picking mechanism 120 can grab it from the conveying mechanism 110 The sheet materials 20 are directly placed on the stacking table 200 for stacking.
  • the transfer assembly 121 will drive the grabber 122 to circulate between the starting position, the picking position, the unloading position and the starting position. That is, the grabber 122 first moves from the starting position to the pickup position and completes grabbing the piece of material 20, then moves from the pickup position to the unloading position to put down the grabbed piece of material 20, and finally grabs the empty piece.
  • the piece 122 returns from the unloading position to the starting position, and the above process is circulated in sequence, so that the continuous transfer of the piece 20 can be realized.
  • the transfer component 121 drives the grabber 122 to cycle once between the starting position, the picking position, the unloading position and the starting position, that is, from the starting position through the picking position and the unloading position and then back to the starting position.
  • the required time is defined as the first duration; the time required for the conveying mechanism 110 to feed the length of the center distance of two adjacent pieces of material 20 is defined as the second duration.
  • the second duration is equal to the center distance of two adjacent pieces 20 divided by the conveying speed of the conveying mechanism 110 .
  • Each time the conveying mechanism 110 feeds a length of center distance the next piece of material 20 can be conveyed to the original position of the previous piece of material 20 .
  • the first duration is equal to the second duration
  • the sheet transfer device 100 is provided with a picking mechanism 120 . Therefore, when the picking mechanism 120 completes the transfer of the previous piece of material 20 and returns the grabber 122 to the initial position, the next piece of material 20 also just moves to the original position of the previous piece of material 20, that is, the initial position of the piece of material. Location. At this time, only one picking mechanism 120 is needed to transfer the pieces 20 on the conveying mechanism 110 in time.
  • the distance between two adjacent pieces 20 of the conveying mechanism 110 is reduced, so the center distance is also shortened, resulting in that the second time period may be shorter than the first time period. Therefore, when the next piece of material 20 is transported to the initial position of the piece of material, the grabbing member 122 has not yet returned to the starting position, so that the next piece of material 20 cannot be grasped in time. In view of this situation, if only one picking mechanism 120 is provided, the pieces 20 on the conveying mechanism 110 can only be picked up at intervals, resulting in a waste of pieces 20 . Therefore, multiple picking mechanisms 120 need to be provided to transfer the pieces 20 in a timely manner.
  • the first duration is N times the second duration, and N is an integer greater than 1.
  • the sheet material transfer device 100 is provided with N picking-up mechanisms 120.
  • the N picking-up mechanisms 120 are respectively arranged on N workstations spaced along the preset direction, and each workstation is provided with a starting position, Picking position and unloading position.
  • each picking mechanism 120 can be driven by the transfer assembly 121 to circulate between the starting position, picking position and unloading position of the respective work station, and transfer the pieces on the conveying mechanism 110 Material 20 is transferred to the unloading position.
  • the pieces 20 are numbered according to the order in which they are transported to the initial position of the pieces, and N numbers are taken.
  • the material mechanism 120 is numbered in the direction from the upstream to the downstream of the conveying mechanism 110 .
  • the first duration is N times the second duration
  • the grabber 122 of the first picking mechanism 120 completes the transfer of the first piece of material 20 and returns to the starting position
  • the N+1th piece of material 20 just moved to the initial position of the piece of material at the first station
  • the previous N-1 pieces of material 20 were not transferred by the first material picking mechanism 120 in time, and will continue past the initial position of the piece of material of the first station. transported downstream.
  • the previous N-1 pieces of material 20 will be transferred by the subsequent N-1 picking mechanisms 120 in the same manner.
  • the numbers of the pieces 20 that can be transferred by the first picking-up mechanism 120 are 1, 1+N, 1+2N, 1+3N, ...; the numbers of the pieces 20 that can be transferred by the second picking-up mechanism 120 are The numbers are 2, 2+N, 2+2N, 2+3N, ...; and the pieces 20 that can be transferred by the N-th material picking mechanism 120 are numbered N, 2N, 3N, ....
  • the sheet material transfer device 100 is provided with two material retrieval mechanisms 120 , and the two material retrieval mechanisms 120 are distributed at the left and right ends of the conveying mechanism 110 .
  • the pickup mechanism 120 at the upstream end, that is, the left end, can transfer the odd-numbered pieces 20 such as 1, 3, 5, ..., etc.; while the pickup mechanism 120 located at the downstream end, that is, the right end, can transfer 2, 4, etc. 6. ...etc. the even-numbered pieces 20 are transferred.
  • the sheet material transfer device 100 is provided with three material retrieval mechanisms 120.
  • the first material retrieval mechanism 120 from left to right can realize the processing of the pieces 20 numbered 1, 4, 7, 10, etc. Transfer; the second picking mechanism 120 can transfer the pieces 20 numbered 2, 5, 8, 11... etc.; the third picking mechanism 120 can transfer the pieces 3, 6, 9, 12... ...and other numbered pieces 20 are transferred.
  • N lamination tables 200 are provided.
  • the N lamination tables are spaced apart along the preset direction and are arranged in one-to-one correspondence with the N material picking mechanisms 120.
  • Each material picking mechanism The sheets 20 transferred to the unloading position by the mechanism 120 are stacked on the corresponding stacking table 200 .
  • the N picking mechanisms 120 of the two sheet material transferring devices 100 also need to be set in one-to-one correspondence, and the corresponding two picking mechanisms The sheets 20 transferred to the unloading position by the mechanism 120 will eventually be stacked on the same corresponding stacking table 200 .
  • the N stacking stations 200 are numbered.
  • the sheets 20 transferred by the first picking mechanism 120 to the unloading position of the first station will be stacked on the first stacking table 200; the pieces 20 transferred by the Nth picking mechanism 120 to the Nth station The sheets 20 at the unloading position will be stacked on the Nth stacking table 200 . That is to say, N stacking operations of N battery cells can be performed simultaneously on the N stacking stations 200 , so the overall production efficiency of the battery cells can be improved while avoiding material waste.
  • the first duration is N times the second duration, and N is an integer greater than 1.
  • the sheet transfer device 100 is provided with N picking-up mechanisms 120 , the N picking-up mechanisms 120 are arranged at the same work station, and the grabbers 122 of the N picking-up mechanisms 120 can alternate with the second time length as an interval. Move to starting position, Picking position and unloading position.
  • the first duration is N times the second duration
  • the grabber 122 of the first picking mechanism 120 completes the transfer of the first piece of material 20 and returns to the starting position, the N+1
  • the grabber 122 of the first picking mechanism 120 completes the transfer of the first piece of material 20 and returns to the starting position, the N+1
  • the grabber 122 of the first picking mechanism 120 completes the transfer of the first piece of material 20 and returns to the starting position, the N+1
  • the grabber 122 of the first picking mechanism 120 completes the transfer of the first piece of material 20 and returns to the starting position
  • the cyclic processes of the grabbers 122 of the N picking-up mechanisms 120 are asynchronous, and there is a second length of beat difference between them. That is to say, the grabbers 122 of the N picking-up mechanisms 120 can alternately return to the starting position at intervals of the second time length, and alternately grab the pieces 20 at the picking-up position, and finally alternately grab the pieces 20 20Transfer to the unloading position. In this way, every time a piece of material 20 is transported to the original position of the piece of material, a corresponding grabbing member 122 returns to the starting position. Therefore, the N picking mechanisms 120 can transfer the pieces 20 on the conveying mechanism 110 one by one at the same work station, thereby improving the efficiency of transferring the pieces 20 from the conveying mechanism 110 to the unloading position.
  • one laminating table 200 is provided, and the sheets 20 transferred to the unloading position by the N picking mechanisms 120 are all stacked on one laminating table 200 .
  • N pick-up mechanisms 120 will simultaneously provide sheet materials 20 for the lamination operation on one lamination table 200 .
  • the stacking speed of a single battery cell on the stacking table 200 will be significantly increased. Taking N equal to 2 as an example, the stacking speed of a single battery cell will be doubled. In this way, the overall production efficiency of the battery cell production equipment 10 can be improved while avoiding material waste.
  • the transfer assembly 121 first drives the grabber 122 to accelerate from the starting position to the picking position, and then picks up the pieces.
  • the position of the material is consistent with the speed of the conveying mechanism 110 in the preset direction, so the grabber 122 can capture the sheet 20 during the operation of the conveying mechanism 110 .
  • the grabbing member 122 is driven by the transfer assembly 121 to move to the unloading position and place the piece of material 20 in the unloading position for subsequent stacking operations.
  • the vacated grabber 122 is driven by the transfer assembly 121 to return to the starting position to grab the next piece of material 20 .
  • the material taking mechanism 120 can realize the sequential taking of multiple pieces of material 20 . Moreover, the conveying mechanism 110 can keep running without stopping while the sheet 20 is being grabbed. Therefore, the incoming efficiency of the sheet material 20 is improved, thereby improving the production efficiency of the battery cells.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
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Abstract

一种片料转移装置（100）及电芯生产设备（10），在取用输送机构（110）上的片料（20）时，移载组件（121）先驱动抓取件（122）由起始位置加速移动至取料位置，并在取料位置与输送机构（110）在预设方向上保持速度一致，故抓取件（122）能够在输送机构（110）运行的过程中对片料（20）实现抓取；抓取到片料（20）后，抓取件（122）在移载组件（121）的带动下移动至下料位置并将片料（20）放置于下料位置，以供后续的叠片操作；而空出的抓取件（122）则在移载组件（121）的带动下回到起始位置，以进行下一个片料（20）的抓取；依次循环，取料机构（120）可实现多个片料（20）的依次取用，输送机构（110）在片料（20）被抓取的过程中可保持运行而无需停顿。

Description

片料转移装置及电芯生产设备
本公开要求于2022年05月06日递交中国专利局，申请号为202210488902.9，申请名称为“片料转移装置及电芯生产设备”的中国专利申请的优先权，其全部内容通过引用结合在本公开中。
技术领域
本发明涉及锂电池设备技术领域，特别涉及一种片料转移装置及电芯生产设备。
背景技术
在锂电池电芯的叠片工艺中，极片、隔膜或极片与隔膜组成的叠片单元一般需要先由输送皮带输送至指定位置，再由取料机构从输送皮带上抓取并转移到叠片台上进行堆叠。
取料机构在转移片料时，需要先移动到输送皮带上方再下降到输送皮带上进行取料，且对于采用真空吸盘吸取片料的取料机构，还需要进行真空准备。因此，取料机构并非连续取料，故输送皮带也需采用步进的方式进行输送以与取料机构配合。
取料机构每取走一个片料，输送皮带便向前输送一段距离，接着便停顿以等待取料机构取走下一个片料。如此循环，输送皮带上的多个片料便可依次被取走。但是，步进的输送方式会降低片料的来料效率，从而导致电芯的生产效率降低。
发明内容
基于此，有必要针对上述问题，提供一种能够提升电芯的生产效率的片料转移装置及电芯生产设备。
一种片料转移装置，包括：
输送机构，能够沿预设方向输送片料；及
取料机构，包括移载组件及抓取件，所述移载组件能够驱动所述抓取件由起始位置加速移动至取料位置，并在所述取料位置与所述输送机构在所述预设方向上保持速度一致，所述起始位置与所述取料位置沿所述预设方向间隔设置；
其中，所述抓取件能够在所述取料位置抓取片料，并在所述移载组件的驱动下将所 抓取的片料转移至下料位置，所述移载组件还能够带动所述抓取件由所述取料位置返回至所述起始位置。
在其中一个实施例中，所述输送机构能够以预设速度匀速输送片料。
在其中一个实施例中，所述移载组件带动所述抓取件由所述起始位置经所述取料位置及所述下料位置并回到所述起始位置需要第一时长；所述输送机构进给相邻两个片料的中心距的长度需要第二时长，且所述第一时长等于所述第二时长，所述片料转移装置设置一个所述取料机构。
在其中一个实施例中，所述移载组件带动所述抓取件由所述起始位置经所述取料位置及所述下料位置并回到所述起始位置需要第一时长；所述输送机构进给相邻两个片料的中心距的长度需要第二时长，且所述第一时长为所述第二时长的N倍，N为大于1的整数；
所述片料转移装置设置有N个所述取料机构，N个所述取料机构分别设置于沿所述预设方向间隔设置的N个工位上，且每个所述工位均设有所述起始位置、所述取料位置及所述下料位置。
在其中一个实施例中，所述移载组件带动所述抓取件由所述起始位置经过所述取料位置及所述下料位置并回到所述起始位置需要第一时长；所述输送机构进给相邻两个片料的中心距的长度需要第二时长，且所述第一时长为所述第二时长的N倍，N为大于1的整数；
所述片料转移装置设置有N个所述取料机构，N个所述取料机构设置于同一个工位上，且N个所述取料机构的所述抓取件能够以所述第二时长作为间隔交替移动至所述起始位置、所述取料位置及所述下料位置。
在其中一个实施例中，所述移载组件包括第一驱动件、第二驱动件及第三驱动件，所述第一驱动件、所述第二驱动件及所述第三驱动件能够分别驱动所述抓取件沿相互垂直的第一方向、第二方向及第三方向移动，且所述第一方向平行于所述预设方向。
一种电芯生产设备，包括：
如上述优选实施例中任一项所述的片料转移装置；
制片装置，用于制备片料并将所制备的片料输出至所述输送机构；及
叠片台，所述片料转移装置转移至所述下料位置的片料能够在所述叠片台上进行堆叠。
在其中一个实施例中，还包括叠片机械手及设置于所述下料位置的纠偏平台，所述纠偏平台能够接收所述片料转移装置转移至所述下料位置的片料的并对片料进行纠偏， 所述叠片机械手能够将片料由所述纠偏平台转移至所述叠片台进行堆叠。
在其中一个实施例中，所述片料转移装置为两个，所述叠片台位于两个所述片料转移装置之间，两个所述片料转移装置分别用于将两种极性相反的片料转移至所述下料位置。
在其中一个实施例中，所述片料转移装置设置有N个所述取料机构，N个所述取料机构分别设置于沿所述预设方向间隔设置的N个工位上，所述叠片台设置有N个，N个所述叠片台沿所述预设方向间隔设置并与N个所述取料机构一一对应的设置，每个所述取料机构转移至所述下料位置的片料在对应的所述叠片台上进行堆叠。
在其中一个实施例中，所述片料转移装置设置有N个所述取料机构，N个所述取料机构设置于同一个工位上，所述叠片台设置有一个，且N个所述取料机构转移至所述下料位置的片料均在一个所述叠片台上进行堆叠。
上述片料转移装置及电芯生产设备，在取用输送机构上的片料时，移载组件先驱动抓取件由起始位置加速移动至取料位置，并在取料位置与输送机构在预设方向上保持速度一致，故抓取件能够在输送机构运行的过程中对片料实现抓取。抓取到片料后，抓取件在移载组件的带动下移动至下料位置并将片料放置于下料位置，以供后续的叠片操作。而空出的抓取件则在移载组件的带动下回到起始位置，以进行下一个片料的抓取。依次循环，取料机构可实现多个片料的依次取用。而且，输送机构在片料被抓取的过程中可保持运行而无需停顿。因此，片料的来料效率得到提升，从而提升电芯的生产效率。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明较佳实施例中电芯生产设备的示意图；
图2为图1所示电芯生产设备中片料转移装置的示意图；
图3为图2所示片料转移装置中取料机构的结构示意图；
图4至图8为图2所示片料转移装置工作过程中的状态变化示意图；
图9为本发明第二个实施例中电芯生产设备的示意图；
图10为本发明第三个实施例中电芯生产设备的示意图。
具体实施方式
为使本发明的上述目的、特征和优点能够更加明显易懂，下面结合附图对本发明的具体实施方式做详细的说明。在下面的描述中阐述了很多具体细节以便于充分理解本发明。但是本发明能够以很多不同于在此描述的其它方式来实施，本领域技术人员可以在不违背本发明内涵的情况下做类似改进，因此本发明不受下面公开的具体实施例的限制。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本发明的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
需要说明的是，当元件被称为“固定于”或“设置于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。本文所使用的术语“垂直 的”、“水平的”、“上”、“下”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施方式。
请参阅图1，本发明提供了一种电芯生产设备10及片料转移装置100。其中，电芯生产设备10包括片料转移装置100、制片装置(图未示)及叠片台200。
制片装置能够制备电芯叠片所需的片料20，料转移装置100能够将制片装置制备的片料20转移至下料位置，下料位置的片料20最终能够在叠片台200上进行堆叠，并制得电芯。片料20可以是极片、隔膜片料或极片与隔膜组成的叠片单元。根据叠片工艺的不同，制片装置能够提供不同类型的片料。
譬如，芯生产设备10可采用Z型叠片工艺，片料20可以是极片或者极片与隔膜复合形成的叠片单元。此外，电芯生产设备10还包括放卷机构(图未示)，放卷机构用于向叠片台200放卷隔膜料带或者隔膜料带与极片复合形成的复合料带。通过使叠片台200及放卷机构相对往复运动，可使隔膜料带或者复合料带在叠片台200上实现Z型铺设。与此同时，向隔膜料带或者复合料带上堆叠极性极片或叠片单元并使得相邻两个片料20的极性相反，便可形成正极、隔膜、负极交替堆叠的电芯。
电芯生产设备10还可采用切叠工艺，片料20可以是极片与隔膜复合形成的叠片单元。叠片单元包括两种极性相反的类型，分别由正极片、负极片与隔膜复合而成。此时，无需放卷机构进行隔膜料带的Z型铺设，直接将极性相反的叠片单元交替放置于叠片台200上，便可形成正极、隔膜、负极交替堆叠的电芯。
具体在本实施例中，片料转移装置100为两个，叠片台200位于两个片料转移装置100之间，两个片料转移装置100分别用于将两种极性相反的片料20转移至下料位置。两种极性相反的片料20可以是负极片及正极片，或者是正极片、负极片分别与隔膜复合形成的叠片单元。
显然，在其他实施例中，若叠片过程中不需要对放置于叠片台200上的片料20的极性进行区分，则也可以只设置一个片料转移装置100。
请一并参阅图2，本发明较佳实施例中的片料转移装置100包括输送机构110及取料机构120。
输送机构110可以采用皮带输送线，能够沿预设方向输送片料20。其中，预设方向指的是图2所示的左右方向。制片装置制备的片料20能够传递至输送机构110，并在输送机构110的带动下向下游输送。输送机构110可以采用步进的方式输送片料20，也可以采用持续输送的方式进行输送。具体在本实施例中，输送机构110能够以预设速度匀速输送片料20。由于匀速输送的过程中输送机构110不停顿，故能够保证片料20的来 料效率。
请一并参阅图3，取料机构120包括移载组件121及抓取件122。抓取件122可以采用吸盘、夹爪等能够抓取并释放片料20的机构。移载组件121能够驱动抓取件122在多个方向移动，从而带动抓取件122在各位置之间切换。
具体在本实施例中，移载组件121包括第一驱动件1211、第二驱动件1212及第三驱动件1213，所述第一驱动件1211、第二驱动件1212及第三驱动件1213能够分别驱动抓取件122沿相互垂直的第一方向、第二方向及第三方向移动，且第一方向平行于预设方向。
第一驱动件1211、第二驱动件1212及第三驱动件1213的具体结构可以相同，均可以是带导轨的气缸驱动机构或螺纹丝杠副机构，抓取件122可通过安装架123安装于第一驱动件1211、第二驱动件1212及第三驱动件1213任一个的驱动端。具体的，第二方向指的是图2所示垂直于图纸平面的方向，第三方向指的是图2所示上下方向。
需要指出的是，在其他实施例中，移载组件121也可以是多自由度的机械手。此外，若需要在取料过程中对输送机构110上的片料20进行角度调整，移载组件121还可设置旋转驱动组件，用以驱动抓取件122旋转。
进一步的，取料机构120所在的工位，设置有沿上述预设方向间隔设置有起始位置及取料位置，且起始位置位于取料位置的上游。譬如，若输送机构110从左向右输送，则起始位置位于取料位置的左侧。
移载组件121能够驱动抓取件122由起始位置加速移动至取料位置，并在取料位置与输送机构110在预设方向上保持速度一致。此时，抓取件122与随输送机构110输送的片料20在预设方向上保持同步，从而便能够在输送机构110运行的过程中对片料20实现抓取。由此可见，输送机构110在片料20被抓取的过程中可保持运行而无需停顿。针对连续输送的输送机构110，可始终保持匀速输送的状态；而针对步进输送的输送机构110，由于抓取件122能够跟随所需抓取的片料20移动，故输送机构110无需停顿以等待抓取件122升降、平移到位以及真空准备充分，故停顿时间也可显著缩短。
如此，输送机构110的输送效率得以提升，片料20的来料效率也得到提升。而且，由于输送机构110的输送效率不用受取料机构120的限制，故制片装置也无需为了匹配输送机构110的输送效率而降低制片的效率。如此，制片装置的效率得到释放。
抓取到片料20后，抓取件122在移载组件121的带动下移动至下料位置，并将片料20放置于下料位置，以供后续的叠片操作。空出的抓取件122则在移载组件121的带动下回到起始位置，以准备进行下一个片料20的抓取。依次循环，取料机构120可实现 多个片料20的依次取用。
取料机构120在取用片料20时，当抓取件122移动至起始位置，待抓取的片料20也被输送至特定位置，称之为片料初始位置。而且，为了保证片料转移装置100持续运行，通过与匹配调试，当抓取件122完成前一个片料20的转移并回到起始位置时，下一个片料20也刚好被输送至片料初始位置。通常情况下，取料位置与极片初始位置是重叠的。
下面结合图4至图8，对本实施例中料转移装置100的工作过程中进行简单描述：
取料机构120的移载组件121驱动抓取件122从图4所示的A位置开始加速，A位置即为上述起始位置，而待抓取的片料20也被输送至A位置，即片料初始位置；当抓取件122到加速至图5所示的B位置时，抓取件122在预设方向上的速度与输送机构110的输送速度相同，而待抓取的片料20也同样输送至B位置；随后，抓取件122在移载组件121的驱动下开始下降，并在下降的同时依然保持预设方向上的速度与输送机构110的输送速度相同，直至达到图6所示的C位置并与片料20接触；抓取件122抵压住片料20之后跟随片料20移动，在移动的过程中可进行真空准备并在图7所示的D位置将片料20抓取，D位置即为上述取料位置。
片料20被抓取件122抓取后，移载组件121将抓取件122带动至图8所示的下料位置，抓取件122将所抓取的片料20放下；接着，移载组件121将带动抓取件122再次回到图4所示的A位置，即起始位置。此时，下一个待抓取的极片20也被输送至A位置。
显然，在其他实施例中，取料机构120的工作过程也可存在区别。譬如，抓取件122由A位置加速移动至B位置的过程中，抓取件122同时下降并进行真空准备。当抓取件122移动至B位置时，抓取件122刚好与片料20接触且真空准备完成。此时，抓取件122在B位置便可完成对片料20的抓取，故B位置便作为上述取料位置。
或者，抓取件122由B位置下降并移动至C位置的过程中，抓取件122同时进行真空准备，且当抓取件122移动至C位置时，抓取件122刚好与片料20接触且真空准备完成。此时，抓取件122在C位置便可完成对片料20的抓取，故C位置便作为上述取料位置。
请再次参阅图1及图2，在本实施例中，电芯生产设备10还包括叠片机械手(图未示)及设置于下料位置的纠偏平台300，纠偏平台300能够接收片料转移装置100转移至下料位置的片料20的并对片料20进行纠偏，而叠片机械手能够将片料20由纠偏平台300转移至叠片台200进行堆叠。纠偏平台300能够带动片料20进行旋转及平移， 从而对片料20实现位置纠偏，而经过位置纠偏的片料20则有利于提升叠片的精度。
需要指出的是，在其他实施例中，片料20无需进行位置纠偏时可将纠偏平台300省略，叠片台200则设于下料位置，取料机构120能够将从输送机构110上抓取的片料20直接放置于叠片台200上进行堆叠。
在电芯生产设备10的工作过程中，移载组件121将带动抓取件122在起始位置、取料位置、下料位置及起始位置之间循环。即，抓取件122先由起始位置移动至取料位置并完成片料20的抓取，再由取料位置移动至下料位置将所抓取的片料20放下，最后空置的抓取件122由下料位置回到起始位置，且上述过程中依次循环，便可实现对片料20的不断转移。
移载组件121带动抓取件122在起始位置、取料位置、下料位置及起始位置之间循环一次，即由起始位置经取料位置及下料位置再回到起始位置所需要的时间，定义为第一时长；输送机构110进给相邻两个片料20的中心距的长度所需要的时间，定义为第二时长。第二时长等于相邻两个片料20的中心距除以输送机构110的输送速度。输送机构110每进给一个中心距的长度，下一个片料20便可被输送至前一个片料20原先所在的位置。
在本实施例中，第一时长等于第二时长，片料转移装置100设置一个取料机构120。因此，当取料机构120完成前一个片料20的转移并使抓取件122回到初始位置时，下一个片料20也刚好移动至前一个片料20原先所在的位置，即片料初始位置。此时，只需要设置一个取料机构120便能够将输送机构110上的片料20及时转移。
但是，随着制片装置的制片效率越来越高，输送机构110相邻两个片料20之间的间距缩小，故中心距也缩短，从而导致第二时长可能会小于第一时长，故当下一个片料20被输送至片料初始位置时，抓取件122还未回到起始位置，从而无法及时抓取下一个片料20。针对这一情况，若只设置一个取料机构120则只能间隔抓取输送机构110上的片料20，从而造成片料20的浪费。因此，需要设置多个取料机构120，以及时转移片料20。
请参阅图9，在第二个实施例中，第一时长为第二时长的N倍，N为大于1的整数。而且，片料转移装置100设置有N个取料机构120，N个取料机构120分别设置于沿预设方向间隔设置的N个工位上，且每个工位均设有起始位置、取料位置及下料位置。
每个取料机构120的抓取件122均能够在移载组件121的带动下在各自所在工位的起始位置、取料位置及下料位置之间循环，并将输送机构110上的片料20转移至下料位置。为便于描述，将片料20按照输送至片料初始位置的先后顺序进行编号，N个取 料机构120按照从输送机构110的上游到下游的方向进行编号。
由于第一时长为第二时长的N倍，故当第一个取料机构120的抓取件122完成第一个片料20的转移并回到起始位置时，第N+1个片料20刚好移动至第一个工位的片料初始位置，而前面的N-1个片料20由于来不及被第一个取料机构120转移，将越过第一个工位的片料初始位置继续向下游输送。通过与第一个工位相同的设置，前面N-1个片料20将以同样的方式分别由后续的N-1个取料机构120进行转移。
对应的，第一个取料机构120能够转移的片料20的编号为1、1+N、1+2N、1+3N、……；第二个取料机构120能够转移的片料20的编号为2、2+N、2+2N、2+3N、……；而第N个取料机构120能够转移的片料20的编号为N、2N、3N、……。
以N等于2为例，片料转移装置100设置有两个取料机构120，两个取料机构120分布于输送机构110的左右两端。上游端，即左端的取料机构120能够实现对1、3、5、……等编号为奇数的片料20进行转移；而位于下游端，即右端的取料机构120能够对2、4、6、……等编号为偶数的片料20进行转移。
以N等于3为例，片料转移装置100设置有三个取料机构120，从左向右的第一个取料机构120能够实现对1、4、7、10……等编号的片料20进行转移；第二个取料机构120能够实现对2、5、8、11……等编号的片料20进行转移；第三个取料机构120则能够实现对3、6、9、12……等编号的片料20进行转移。
进一步的，在上述第二个实施例中，叠片台200设置有N个，N个叠片台沿预设方向间隔设置并与N个取料机构120一一对应的设置，每个取料机构120转移至下料位置的片料20在对应的叠片台200上进行堆叠。
需要指出的是，当电芯生产设备10包括两个片料转移装置100时，两个片料转移装置100的N个取料机构120也需要一一对应的设置，且对应的两个取料机构120转移至下料位置的片料20，最终将在同一个对应的叠片台200上进行堆叠。同样的，对N个叠片台200进行编号。
第一个取料机构120转移至第一个工位的下料位置的片料20将在第一个叠片台200上进行堆叠；第N个取料机构120转移至第N个工位的下料位置的片料20将在第N个叠片台200上进行堆叠。也就是说，N个叠片台200上能够同时进行N个电芯的叠片操作，故能够在避免材料浪费的前提下从整体上提升电芯的生产效率。
请参阅图10，在第三个实施例中，第一时长为第二时长的N倍，N为大于1的整数。而且，片料转移装置100设置有N个取料机构120，N个取料机构120设置于同一个工位上，且N个取料机构120的抓取件122能够以第二时长作为间隔交替移动至起始位置、 取料位置及下料位置。
同样的，由于第一时长为第二时长的N倍，故当第一个取料机构120的抓取件122完成第一个片料20的转移并回到起始位置时，第N+1个片料20刚好移动至片料初始位置，而前面的N-1个片料20由于来不及被第一个取料机构120转移，将越过片料初始位置继续向下游输送。
N个取料机构120的抓取件122的循环过程是不同步的，彼此之间存在一个第二时长的节拍差。也就是说，N个取料机构120的抓取件122能够以第二时长作为间隔交替回到起始位置，并交替在取料位置抓取片料20，最后交替将所抓取的片料20转移至下料位置。如此，每当一个片料20被输送至片料初始位置，均对应有一个抓取件122回到起始位置。因此，N个取料机构120能够在同一工位对输送机构110上的片料20逐个进行转移，从而提升了将片料20从输送机构110转移至下料位置的效率。
进一步的，在第三个实施例中，叠片台200设置有一个，且N个取料机构120转移至下料位置的片料20均在一个叠片台200上进行堆叠。
也就是说，N个取料机构120将同时为一个叠片台200上的叠片操作提供片料20。虽然叠片台200上同时进行叠片的电芯只有一个，但叠片台200上单个电芯的叠片速度将显著提升。以N等于2为例，单个电芯的叠片速度将提升两倍。如此，也能够在避免材料浪费的前提下从整体上提升电芯生产设备10的生产效率。
上述片料转移装置100及电芯生产设备10，在取用输送机构110上的片料20时，移载组件121先驱动抓取件122由起始位置加速移动至取料位置，并在取料位置与输送机构110在预设方向上保持速度一致，故抓取件122能够在输送机构110运行的过程中对片料20实现抓取。抓取到片料20后，抓取件122在移载组件121的带动下移动至下料位置并将片料20放置于下料位置，以供后续的叠片操作。而空出的抓取件122则在移载组件121的带动下回到起始位置，以进行下一个片料20的抓取。依次循环，取料机构120可实现多个片料20的依次取用。而且，输送机构110在片料20被抓取的过程中可保持运行而无需停顿。因此，片料20的来料效率得到提升，从而提升电芯的生产效率。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不 能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。

Claims (11)

  1. 一种片料转移装置，其特征在于，包括：
    输送机构，能够沿预设方向输送片料；及
    取料机构，包括移载组件及抓取件，所述移载组件能够驱动所述抓取件由起始位置加速移动至取料位置，并在所述取料位置与所述输送机构在所述预设方向上保持速度一致，所述起始位置与所述取料位置沿所述预设方向间隔设置；
    其中，所述抓取件能够在所述取料位置抓取片料，并在所述移载组件的驱动下将所抓取的片料转移至下料位置，所述移载组件还能够带动所述抓取件由所述取料位置返回至所述起始位置。
  2. 根据权利要求1所述的片料转移装置，其特征在于，所述输送机构能够以预设速度匀速输送片料。
  3. 根据权利要求1所述的片料转移装置，其特征在于，所述移载组件带动所述抓取件由所述起始位置经所述取料位置及所述下料位置并回到所述起始位置需要第一时长；所述输送机构进给相邻两个片料的中心距的长度需要第二时长，且所述第一时长等于所述第二时长，所述片料转移装置设置一个所述取料机构。
  4. 根据权利要求1所述的片料转移装置，其特征在于，所述移载组件带动所述抓取件由所述起始位置经所述取料位置及所述下料位置并回到所述起始位置需要第一时长；所述输送机构进给相邻两个片料的中心距的长度需要第二时长，且所述第一时长为所述第二时长的N倍，N为大于1的整数；
    所述片料转移装置设置有N个所述取料机构，N个所述取料机构分别设置于沿所述预设方向间隔设置的N个工位上，且每个所述工位均设有所述起始位置、所述取料位置及所述下料位置。
  5. 根据权利要求1所述的片料转移装置，其特征在于，所述移载组件带动所述抓取件由所述起始位置经过所述取料位置及所述下料位置并回到所述起始位置需要第一时长；所述输送机构进给相邻两个片料的中心距的长度需要第二时长，且所述第一时长为所述第二时长的N倍，N为大于1的整数；
    所述片料转移装置设置有N个所述取料机构，N个所述取料机构设置于同一个工位上，且N个所述取料机构的所述抓取件能够以所述第二时长作为间隔交替移动至所述起 始位置、所述取料位置及所述下料位置。
  6. 根据权利要求1至5任一项所述的片料转移装置，其特征在于，所述移载组件包括第一驱动件、第二驱动件及第三驱动件，所述第一驱动件、所述第二驱动件及所述第三驱动件能够分别驱动所述抓取件沿相互垂直的第一方向、第二方向及第三方向移动，且所述第一方向平行于所述预设方向。
  7. 一种电芯生产设备，其特征在于，包括：
    如上述权利要求1至6任一项所述的片料转移装置；
    制片装置，用于制备片料并将所制备的片料输出至所述输送机构；及
    叠片台，所述片料转移装置转移至所述下料位置的片料能够在所述叠片台上进行堆叠。
  8. 根据权利要求7所述的电芯生产设备，其特征在于，还包括叠片机械手及设置于所述下料位置的纠偏平台，所述纠偏平台能够接收所述片料转移装置转移至所述下料位置的片料的并对片料进行纠偏，所述叠片机械手能够将片料由所述纠偏平台转移至所述叠片台进行堆叠。
  9. 根据权利要求7所述的电芯生产设备，其特征在于，所述片料转移装置为两个，所述叠片台位于两个所述片料转移装置之间，两个所述片料转移装置分别用于将两种极性相反的片料转移至所述下料位置。
  10. 根据权利要求7所述的电芯生产设备，其特征在于，所述片料转移装置设置有N个所述取料机构，N个所述取料机构分别设置于沿所述预设方向间隔设置的N个工位上，所述叠片台设置有N个，N个所述叠片台沿所述预设方向间隔设置并与N个所述取料机构一一对应的设置，每个所述取料机构转移至所述下料位置的片料在对应的所述叠片台上进行堆叠。
  11. 根据权利要求7所述的电芯生产设备，其特征在于，所述片料转移装置设置有N个所述取料机构，N个所述取料机构设置于同一个工位上，所述叠片台设置有一个，且N个所述取料机构转移至所述下料位置的片料均在一个所述叠片台上进行堆叠。
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