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US20130251495A1 - Method for depositing sheet-like objects and an assembly for carrying out said method - Google Patents

Method for depositing sheet-like objects and an assembly for carrying out said method Download PDF

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Publication number
US20130251495A1
US20130251495A1 US13/884,138 US201113884138A US2013251495A1 US 20130251495 A1 US20130251495 A1 US 20130251495A1 US 201113884138 A US201113884138 A US 201113884138A US 2013251495 A1 US2013251495 A1 US 2013251495A1
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US
United States
Prior art keywords
objects
lifting device
sheet
hold
vacuum
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
US13/884,138
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English (en)
Inventor
Claus-Rupert Hohenthanner
Bastian Hörenz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Li Tec Battery GmbH
Original Assignee
Li Tec Battery GmbH
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Filing date
Publication date
Application filed by Li Tec Battery GmbH filed Critical Li Tec Battery GmbH
Assigned to LI-TEC BATTERY GMBH reassignment LI-TEC BATTERY GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HOHENTHANNER, CLAUS-RUPERT, HORENZ, BASTIAN
Publication of US20130251495A1 publication Critical patent/US20130251495A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/08—Separating articles from piles using pneumatic force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/0808—Suction grippers
    • B65H3/0816—Suction grippers separating from the top of pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
    • B65H3/54—Pressing or holding devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H39/00—Associating, collating, or gathering articles or webs
    • 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
    • H01M10/04—Construction or manufacture in general
    • H01M10/0404—Machines for assembling batteries
    • 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
    • H01M10/04—Construction or manufacture in general
    • H01M10/049—Processes for forming or storing electrodes in the battery container
    • 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
    • H01M10/06—Lead-acid accumulators
    • H01M10/12—Construction or manufacture
    • H01M10/14—Assembling a group of electrodes or separators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/421—Forming a pile
    • B65H2301/4211—Forming a pile of articles alternatively overturned, or swivelled from a certain angle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/19—Specific article or web
    • B65H2701/1912—Banknotes, bills and cheques or the like
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the present invention relates to a method for depositing sheet-like objects, particularly for depositing electrodes and/or separators for constructing an electrochemical energy store or parts of such electrodes or separators as well as an assembly for carrying out such a method.
  • DE 193 03 70 A1 discloses an apparatus for withdrawing sheet-like recorded medium of a stack resting on a height-adjustable base plate, in which the uppermost recorded medium of the stack in each case is grasped by a circulating friction band and led through a neck of a transporting belt formed by the conveyor belt circulating at transport speed and a counter-rotating brake belt. Openings disposed slightly inclined to the transport direction are arranged in the base plate receiving the stack through which the friction of the lowermost recorded medium of the stack relative the friction belt grasping same is controllable by means of negative pressurization.
  • DE 20 05 270 A1 discloses a transport apparatus for sheet-like documents consisting of a hollow drum in which a vacuum chamber is provided which is connected to a vacuum source via a hollow shaft and has suction openings in its cylinder barrel.
  • a pneumatically operated membrane valve is arranged behind a suction opening or a group of suction openings in the transport apparatus which selectively connects said openings to the vacuum chamber.
  • a pneumatic logical control is connected to the membrane valve to connect the suction openings to the vacuum chamber when a document is to be held to the cylinder barrel of the drum and to interrupt the connection to the vacuum chamber when no document is to be held or when a previously held document is to be released.
  • DE 22 01 254 B2 discloses an apparatus for separating sheet material from the underside of a stack to a pair of feed rollers using a stationary stacking table having a slide plate capable of moving back and forth which grasps the respectively lowermost sheet of the stack at its rear edge, moves it over the stacking table and feeds it to the feed rollers, suctions bores associated with the stacking table through which the respective lowermost sheet is subjected to a vacuum, and support strips for the stack.
  • Said stationary support strips form suction channels between themselves which open to the outer air on the ends opposite the feeder rolls.
  • the slide plate comprises continuous notches on its upper side to below the lower edge of the contact surface for the sheets to be separated which each align with one of the suction channels formed between the support strips. In so doing, the rear edge of the next sheet to be advanced during the separating of the lowermost sheet is pulled downward.
  • DE 34 41 479 A1 further discloses a vacuum-operated lifting apparatus for flat air-permeable objects of variable profile in which a housing containing a suction chamber having a plurality of evenly distributed suction openings is provided in the underside of the housing, and in which each suction opening is associated with a control valve comprising a valve member which seals the opening off from atmospheric pressure, a valve tappet projecting from the housing which penetrates the opening in a downward direction, and an operating piston connected to the valve member which is acted upon by atmospheric pressure over its entire diameter on the side facing away from the valve member when the opening is closed and over a reduced diameter when the opening is clear.
  • a control valve comprising a valve member which seals the opening off from atmospheric pressure, a valve tappet projecting from the housing which penetrates the opening in a downward direction, and an operating piston connected to the valve member which is acted upon by atmospheric pressure over its entire diameter on the side facing away from the valve member when the opening is closed and over a reduced diameter when the opening is clear.
  • the present invention is based on the object of providing a technical teaching for handling sheet-like objects which in particular also offer advantages in the handling of sheet-like objects of lower inherent stability of electrode materials and/or separator materials in conjunction with the manufacture of electrochemical energy stores.
  • This object is accomplished by a method for depositing sheet-like objects, respectively by an assembly for carrying out said method in accordance with any one of the independent claims.
  • a method for depositing sheet-like objects in which a plurality of such objects are successively placed atop one another and in which individual or multiple objects are intermittently removed again from above. It is thereby additionally provided for the objects to be placed atop each other offset and/or rotated relative one another.
  • a sheet-like object is to be understood as a flat object, preferably a thin flat object, thus preferably a flat object exhibiting dimensions in a direction perpendicular to its surface which are substantially smaller than the dimensions of its smallest segment completely within its surface.
  • sheet-like objects are in particular electrochemical materials such as, for example, electrode materials or separator materials as used in the manufacture of electro-chemical energy stores.
  • a plurality of such objects refers to a number of objects greater than one.
  • the concept of laying such objects atop one another is the creating or maintaining of an assembly of such objects in which the surfaces of the objects are in contact.
  • the surfaces of said objects are thereby preferably substantially perpendicular to the direction of gravity.
  • the objects are placed atop each other in offset manner from one another when they are deposited in displaced or offset manner in a direction tangential to their surfaces. They are placed atop each other in rotated manner when they are deposited atop one another and rotated relative each other about an axis perpendicular to their surfaces.
  • the offsetting, displacing or rotating processes can also be combined in any desired manner when overlaying the sheet-like objects atop one another.
  • the invention preferably provides for at least one object to be removed by being lifted.
  • the lifting of objects can thereby preferably occur in different ways, preferably by a mechanical gripping of the object to be lifted or by means of an electrostatic lifting device or, particularly preferably, by means of a vacuum lifter.
  • Such lifting devices can preferably also be used to deposit an object on top of other objects, particularly offset and/or rotated relative each other.
  • a vacuum lifter s to be understood as a lifting device which is suited to lifting sheet-like objects by at least locally suctioning said sheet-like objects using a vacuum in that the outer atmospheric pressure acts on the opposite side of the sheet and presses the sheet against the vacuum chamber or against the vacuum chambers of the vacuum lifter.
  • a lifted sheet By switching the vacuum on and off and/or engaging an excess pressure, a lifted sheet can also be readily deposited.
  • the invention preferably provides for at least one first object to be held while at least one second object lying atop the at least one first object is removed.
  • a second object lies over a first object in correspondence with the usual linguistic usage when the second object exerts the force of its weight on the first object.
  • One preferential embodiment of the invention provides for holding at least one first object while at least one second object lying atop the at least one first object is removed by a pressure being exerted from above onto at least one point or one part of said object.
  • the at least one point or at least one part of said object thereby preferably lies at the edge of the object's surface.
  • this embodiment of the invention has proven particularly advantageous when the sheet-like objects have a lower inherent stability, particularly a lower inherent stability than sheet-like objects made of paper, which is frequently the case with electrode or separator materials for constructing electrochemical energy stores.
  • the objects employed are at least partially air-permeable objects.
  • the inventive offset and/or rotated depositing of the sheet-like objects allows a particularly effective, reliable and simple separating of these sheet-like objects, particularly when they have a tendency to adhere to another one somewhat due to their material properties and associated adhesion or coherence or when a vacuum lifter suctions a plurality of them, particularly in the case of at least partially air-permeable objects.
  • At least one object is likewise preferably provided for at least one object to be an electrode or a separator for constructing an electrochemical energy store or a part of such an electrode or separator.
  • a lifting device rotatable about a vertical axis and/or displaceable in a horizontal plane to remove and/or deposit objects, said lifting device being aligned and/or positioned by means of a device which recognizes the position of an object to be removed using information technology.
  • Preferred lifting devices are thereby mechanical gripping devices, electrostatic lifting devices or vacuum lifters.
  • Feasible as devices for recognizing the position of an object to be removed are thereby all devices which are suited to recognizing the position of an object to be removed using information technology, preferably by means of signal processing and particularly preferably by means of pattern recognition.
  • the operative elements of the lifting device are preferably aligned and/or positioned such that said operative elements of the lifting device cover as much as possible of the surface of the object to be removed, particularly lifted, and that said operative elements of the lifting device preferably do not come into contact or interact with other objects, particularly those underneath the object to be lifted or removed.
  • At least one lifting device particularly preferably a vacuum lifter, which is arranged on a lifting apparatus so as to be rotatable about a vertical axis and/or displaceable in a horizontal plane.
  • the vertical axis is thereby preferably arranged substantially parallel to the direction of gravity and thus substantially orthogonal to the surfaces of the object to be deposited or lifted.
  • the horizontal plane is preferably aligned perpendicular to the vertical axis.
  • the present or further embodiments of the invention preferably exhibit at least one hold-down element which holds at least one first object while at least one second object lying above the at least one first object is removed.
  • a hold-down element refers to any device which is suited to holding a first object lying underneath a second object; i.e. preventing it from being lifted together with the object to be lifted due to adhesive or cohesive force.
  • hold-down elements are mechanical gripping devices, electrostatic retaining devices or hold-down elements operated by means of negative pressure or vacuum.
  • the present or further embodiments of the invention preferably exhibit a hold-down element which is structurally connected to the vacuum pickup or to another lifting device such that said hold-down element does not move, or at best only moves vertically, in the kinematic reference systems of the vacuum lifter when the vacuum lifter moves horizontally relative to a deposited or positioned object.
  • the hold-down element is thereby preferably rigidly connected to the vacuum lifter or to the other lifting device or at least connected such that a relative motion between the hold-down element and the vacuum lifter is then not possible when the vacuum lifter or other lifting device moves horizontally in relation to a deposited or positioned object.
  • At least one vacuum lifter thereby preferably comprises a plurality of pressure chambers.
  • Said pressure chambers can preferably be subjected to a vacuum independently of one another. It is particularly preferable for the pressure chambers to be arranged horizontally displaceable to one another. This is associated with the advantage of being able to adapt the position of the pressure chambers to the form of the sheet-like object.
  • the inventive assembly preferably comprises an IT device for recognizing the position of an object to be removed.
  • the inventive assembly preferably likewise comprises an IT device for aligning and/or positioning a lifting device based on the position of an object to be removed as recognized by the same or by a further IT device.
  • the IT device for recognizing the position of an object to be removed thereby preferably comprises a camera.
  • FIG. 1 a schematic view of a first arrangement of sheet-like objects
  • FIG. 2 a second arrangement of sheet-like objects
  • FIG. 3 a third arrangement of sheet-like objects
  • FIG. 4 a first embodiment of an assembly according to the invention
  • FIG. 5 a second embodiment of an inventive assembly
  • FIG. 6 a third embodiment of an inventive assembly
  • FIG. 7 a fourth arrangement of sheet-like objects
  • FIG. 8 a vacuum lifter in accordance with a preferred embodiment of the invention.
  • the sheet-like objects in this embodiment lie atop one another in offset manner, albeit not rotated with respect to one another, such that the edges or specific partial sections of a second sheet-like object lying underneath a first sheet-like object are freely accessible.
  • the sheet-like object 4 lying underneath can then be prevented from being lifted together with the sheet-like object 5 lying above it by said sheet-like object 4 being held down.
  • the further sheet-like objects underneath it are likewise prevented from being lifted.
  • Points 15 a , 15 b , 15 c and 15 d onto which pressure can be exerted, for example by means of a mechanical hold-down element, lend themselves to holding down the sheet-like objects, particularly sheet-like object 4 .
  • FIG. 2 depicts a similar situation using the example of sheet-like objects which are deposited one atop the other in rotated manner.
  • points 16 a , 16 b, 16 c and 16 d lend themselves to holding down the sheet-like objects lying underneath.
  • FIG. 3 depicts a similar situation, wherein here the sheet-like objects are deposited in rotated and offset manner to one another.
  • points 14 a , 14 b, 14 c land 14 d lend themselves to holding down the sheet-like objects lying underneath.
  • FIG. 4 shows a preferred embodiment of an inventive assembly in which a lifting device 1 , preferably a suction lifter having suction cups 6 or vacuum chambers 6 , is mounted to a lifting apparatus 2 .
  • Said lifting device 1 can be raised and/or lowered in the vertical direction 8 by means of the lifting apparatus 2 .
  • This assembly of the lifting device 1 as shown exemplarily in FIG. 4 can additionally also be offset or displaced horizontally or in any direction lying in horizontal plane 10 or rotated about vertical axis 9 .
  • the position of the vacuum chambers 6 can be adapted to the position and form of the sheet-like object 5 to be lifted such that said vacuum chambers preferably only suction the sheet-like object 5 to be lifted and preferably riot the object 4 lying underneath which is not to be lifted.
  • FIG. 4 schematically shows a preferred embodiment of an inventive assembly comprising a vacuum lifter 1 , thus a lifting device which is suited to lifting sheet-like objects by at least locally suctioning said sheet-like objects 4 , 5 by means of a vacuum in that the outer atmospheric pressure acts on the opposite side of the sheet 5 and presses the sheet against the vacuum chamber or against the vacuum chambers 6 of the vacuum lifter 1 .
  • a lifted sheet can also be readily deposited.
  • FIG. 4 shows this assembly according to a preferred embodiment in which at least one first object 4 is held while at least one second object 5 lying atop the at least one first object 4 is removed.
  • a pressure can thereby be exerted from above on at least one point of the points 14 a , 14 b, 14 c, 14 d , 15 a , 15 b , 15 c , 15 d , 16 a, 16 b, 16 c and/or 16 d shown in FIGS. 1 , 2 and/or 3 , or on one part of said object 4 .
  • the at least one point or at least one part of said object thereby preferably lies at the edge of the object's surface. It is particularly preferential for the objects employed to be at least partially air-permeable objects.
  • FIG. 5 depicts a further preferential embodiment of an inventive assembly in which the hold-down element 3 is affixed to the lifting device 1 such that the latter or the hold-down element 3 moves together with the lifting device 1 such that upon the lifting device 1 rotating about vertical axis 9 or upon a displacement of the lifting device 1 parallel to horizontal plane 10 , the hold-down element(s) 3 are preferably moved along therewith such that the object(s) 4 lying under the object 5 to be lifted are always held down, preferably by a pressure on the points 14 a , 14 b , 14 c , 14 d , 15 a , 15 b , 15 c , 15 d , 16 a , 16 b, 16 c and/or 16 d shown in FIG.
  • pivot points or articulations 11 thereby allow the hold-down element 3 to move horizontally in direction 12 .
  • Said pivot points or articulations 11 are preferably designed such that the hold-down element(s) 3 can also be moved in vertical direction 13 , preferably independently of the lifting device 1 .
  • a lifting device 1 which is rotatable about a vertical axis 9 and/or displaceable in a horizontal plane 10 and is aligned and/or positioned by means of a device 7 which uses information technology to recognize the position of an object 5 to be removed.
  • Preferential lifting devices are thereby mechanical griping devices, electrostatic lifting devices or vacuum lifters.
  • Feasible as devices 7 for recognizing the position of an object 5 to be removed are thereby all devices which are suited to recognizing the position of an object to be removed using information technology, preferably by means of signal processing and particularly preferably by means of pattern recognition.
  • the operative elements 6 of the lifting device are preferably aligned and/or positioned such that said operative elements 6 of the lifting device cover as much as possible of the surface of the sheet-like object 5 to be removed, particularly lifted, and that said operative elements of the lifting device preferably do not come into contact or interact with other sheet-like objects 4 , particularly those lying underneath the sheet-like object 5 to be lifted or removed.
  • FIG. 6 shows a further preferential embodiment of an inventive assembly in which IT devices 7 are preferably mounted to the lifting device 1 , by means of which the position of a sheet-like object 5 can be recognized such that the lifting device 1 can be aligned to the recognized position.
  • Said IT device 7 preferably comprises one or more cameras which preferably take images of the edges of the sheet-like objects from which the position of the sheet-like object(s) can be determined by means of information technology. Pattern recognition procedures are thereby preferably used, particularly preferably edge detection methods.
  • Edge detection is part of image processing segmentation which attempts to distinguish between flat regions within a digital image.
  • methods of automatic segmentation Basically, they are often divided into pixel-oriented, edge-oriented and region-oriented methods.
  • model-based methods which start with specific object forms, and texture-based methods, which also take a homogeneous internal structure of the objects into consideration.
  • edge detection so-called edge operators are to recognize the transitions between said regions. These transitions are marked as edges.
  • an individual region is also to be recognized as such and a good edge detector is not to divide it into two parts by an edge.
  • An edge detector calculates its corresponding edge image from an image in which all the edges are accordingly seen. In order to achieve this, each pixel is re-localized by matrix calculation.
  • Edge-oriented methods of segmenting digital images search an image for edges or object transitions. Many algorithms therefore still do not furnish closed edge contours; they must first be combined with further methods so they will include objects. However, for determining the position of sheet-like objects of known form, this is often not necessary. Edges frequently lie between the pixel regions of an image. The results of an algorithm can be polygons (or lines), but some operations also return the edges as differently colored pixels. Methods such as the Sobel operator and the Laplace operator, as well as gradient search, allow finding the pixels associated with an edge. However, they are still loose and need to be completed by edge-tracing algorithms.
  • One popular method of generating a coherent object outline or at least edge contours from the edge pixels is the live-wire method of authors E. Mortensen, W.
  • Optimum route selection is then a standard problem in information technology and can for example be solved by a breadth-first search.
  • Watershed transformation is also a very well-known method which works with grayscale images and always furnishes closed contours. Further methods include parallel and sequential edge extraction, optimal edge detection, the Felzenszwalb-Huttenlocher algorithm, active shape models and snakes.
  • At least one lifting device 1 is preferably provided in the embodiments of the invention shown in FIGS. 4 , 5 and 6 , same being arranged on a lifting apparatus 2 rotatable about a vertical axis 9 and/or displaceable in a horizontal plane 10 .
  • the vertical axis 9 is thereby preferably arranged substantially parallel to the direction of gravity and thus substantially orthogonal to the surfaces of the deposited or lifted objects.
  • the horizontal plane 10 is preferably aligned perpendicular to the vertical axis 9 .
  • the present or further embodiments of the invention preferably exhibit at least one hold-down element 3 which holds at least one first object 4 while at least one second object 5 lying above the at least one first object 4 is removed.
  • hold-down elements 3 are mechanical gripping devices, electrostatic retaining devices or hold-down elements operated by means of negative pressure or vacuum.
  • the embodiment of the invention shown in FIG. 5 comprises a hold-down element 3 which is structurally connected to the vacuum pickup 1 or to another lifting device such that said hold-down element does not move, or at best only moves vertically, in the kinematic reference systems of the vacuum lifter when the vacuum lifter moves horizontally relative to a deposited or positioned object.
  • the hold-down element 3 is thereby preferably rigidly connected to the vacuum lifter 1 or to the other lifting device or at least connected such that a relative motion between the hold-down element and the vacuum lifter is then not possible when the vacuum lifter or other lifting devices move horizontally in relation to a deposited or positioned object.
  • At least one vacuum lifter 1 thereby preferably comprises—as shown in FIGS. 4 , 5 and 6 —a plurality of pressure chambers 6 .
  • Said pressure chambers 6 can preferably be subjected to a vacuum independently of one another. It is particularly preferable for the pressure chambers to be arranged displaceable to one another in the horizontal direction 10 . This is associated with the advantage of being able to adapt the position of the pressure chambers to the form of the sheet-like object.
  • one preferential embodiment of the inventive assembly exhibits an IT device 7 for recognizing the position of an object 5 to be removed.
  • the inventive assembly preferably likewise comprises an IT device for aligning and/or positioning a lifting device based on the position of an object to be removed recognized by the same or a further IT device.
  • the IT device for recognizing the position of an object to be removed thereby preferably comprises a camera 7 .
  • the sheet-like objects 4 , 5 can preferably be rotated relative each other, particularly preferably rotated relative each other by an angle of approx. 26 degrees or alternatingly deposited individually or in groups in two interpenetrating stacks rotated relative one another.
  • the sheet-like objects can thereby be secured against unintentional rotating or displacing at their ends or edges by limiting elements 17 , 18 .
  • Such limiting elements 17 , 18 can preferably support the intended stacks of sheet-like objects so as to keep deviations from the desired position as minimal as possible.
  • such a vacuum lifter 1 preferably comprises a number of pressure chambers 6 with respective vacuum connections 20 .
  • the vacuum connections of the vacuum chambers are preferably independent of one another so that improper gripping by the vacuum lifter can be prevented wherever possible upon a drop in pressure.
  • the vacuum lifter preferably exhibits a groove 19 in the proximity of the edge into which a caulking strip is or can be fit.
  • the vacuum lifter preferably exhibits a plurality of hold-down elements 3 which, in the embodiment shown in FIG. 8 , are preferentially designed as spring hold-down elements 3 .
  • the points of contact of said hold-down elements preferably lie as close as possible to the edge of the vacuum gripper 1 so as to prevent unwanted kinking of the sheet-like objects when the vacuum gripper lifts them.
  • the vacuum lifter is preferably operated at a negative pressure of 0.7 bar.
  • the hold-down element preferably exerts a force totaling 18 N on the sheet-like object to be held down.
  • Embodiments of the invention are preferred in the manufacturing of electrochemical energy stores, particularly galvanic cells, in which sheet-like objects of different types and/or compositions, preferably electrode and/or separator films, are lifted and/or deposited together or such that an electrode is first lifted and thereafter a separator film is lifted by the same vacuum lifter without the electrode being deposited beforehand, or the reverse case; i.e. first the separator film and thereafter the electrode.
  • the separator film is thereby frequently gas-permeable, particularly air-permeable.
  • An annular gap which is preferably approx. 2 mm wide is preferably provided around the anode. Cut separator films are often somewhat larger than electrodes.
  • the invention is therefore also expressly applicable to sheet-like objects of different size or form.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Automatic Assembly (AREA)
  • Secondary Cells (AREA)
US13/884,138 2010-11-08 2011-10-28 Method for depositing sheet-like objects and an assembly for carrying out said method Abandoned US20130251495A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102010050745A DE102010050745A1 (de) 2010-11-08 2010-11-08 Verfahren zur Ablage von blattförmigen Objekten und Anordnungen zur Durchführung dieses Verfahrens
DE102010050745.8 2010-11-08
PCT/EP2011/005474 WO2012062421A1 (fr) 2010-11-08 2011-10-28 Procédé pour déposer des objets en forme de feuille et système pour mettre en oeuvre ce procédé

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US20130251495A1 true US20130251495A1 (en) 2013-09-26

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JP (1) JP2013543240A (fr)
KR (1) KR20130143070A (fr)
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US20170349387A1 (en) * 2016-06-03 2017-12-07 Gruma SAB de CV Rotating stacker
US11101489B2 (en) 2016-04-01 2021-08-24 Ns Co.Ltd. Apparatus and method for manufacturing electrode assembly and electrode assembly manufactured using the same
US12519123B2 (en) 2021-01-05 2026-01-06 Prime Planet Energy & Solutions, Inc. Method and apparatus for manufacturing laminated electrode body

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EP2962968B1 (fr) * 2014-07-01 2017-05-10 Wincor Nixdorf International GmbH Dispositif destiné à la séparation de produits en feuilles
WO2023112425A1 (fr) * 2021-12-14 2023-06-22 株式会社豊田自動織機 Dispositif de fabrication de module de stockage d'énergie et procédé de fabrication de module de stockage d'énergie
DE102022107942A1 (de) * 2022-04-04 2023-10-05 Mb Atech Gmbh Stapeleinheit zur Herstellung von Modulen oder Vorstufen von Modulen

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Publication number Priority date Publication date Assignee Title
US11101489B2 (en) 2016-04-01 2021-08-24 Ns Co.Ltd. Apparatus and method for manufacturing electrode assembly and electrode assembly manufactured using the same
US11101490B2 (en) 2016-04-01 2021-08-24 Ns Co. Ltd. Apparatus and method for manufacturing electrode assembly and electrode assembly manufactured using the same
US20170349387A1 (en) * 2016-06-03 2017-12-07 Gruma SAB de CV Rotating stacker
US10214367B2 (en) * 2016-06-03 2019-02-26 Gruma S.A.B. De C.V. Rotating stacker
US20190185277A1 (en) * 2016-06-03 2019-06-20 Gruma S.A.B. De C.V. Rotating stacker
US12519123B2 (en) 2021-01-05 2026-01-06 Prime Planet Energy & Solutions, Inc. Method and apparatus for manufacturing laminated electrode body

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DE102010050745A8 (de) 2012-09-06
CN103201203A (zh) 2013-07-10
EP2637955A1 (fr) 2013-09-18
KR20130143070A (ko) 2013-12-30
DE102010050745A1 (de) 2012-05-10
WO2012062421A1 (fr) 2012-05-18
JP2013543240A (ja) 2013-11-28

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