Device and method for providing a production machine for the energy battery production industry, and system for the energy

Abstract

The invention relates to a device (1) for providing bobbins (2) with wound web-shaped material for a production machine (3) in the energy battery production industry, comprising at least one bobbin changing device (4, 5, 6, 7) and a bobbin handling device (8), which is provided for supplying the at least one bobbin changing device (4, 5, 6, 7) with the bobbins (2), the bobbin changing device (4, 5, 6, 7) and the bobbin handling device (8) are arranged in a common air-conditioning chamber (9), and wherein a gate (10) is provided, which is designed such that the bobbin (2) can be conveyed into the air-conditioning chamber (9) via the gate (10).

Description

Technical Field

[0001] The invention relates to a method for providing a web-shaped strip winding for a production machine in the energy cell production industry according to the preamble of claim 1. The invention also relates to a system for the energy cell production industry. Background Art

[0002] In principle, it is known from the prior art to use energy cells or energy storage devices in motor vehicles, other land vehicles, ships, aircraft or stationary systems (e.g. photovoltaic systems in the form of batteries or fuel cells) in which large amounts of energy must be stored over a relatively long period of time. For this purpose, such energy cells have a structure consisting of a large number of segments stacked in a pile. The segments each consist of alternating anode and cathode sheets, which are connected by diaphragm sheets that are also made as segments. These segments are pre-cut during the manufacturing process, then stacked in a predetermined order and connected to each other by lamination.

[0003] In this case, the electrode sheets (i.e. anode sheets and cathode sheets) are usually composed of so-called sub-rolls, which in turn consist of mother rolls. The mother roll contains a limited, wound electrode web, wherein a cell stack cannot be formed due to the excessive width of the web. Therefore, the mother roll is first unrolled and cut in the longitudinal direction to reduce the width of the electrode web or to form several electrode webs of smaller width. The electrode web cut out in this way with a reduced width is then wound up again into so-called sub-rolls. The sub-rolls can then be unrolled again in order to form segments that are later suitable for forming a cell stack by cutting in the transverse direction.

[0004] The segments in the form of membrane sheets are also formed from the sub-rolls by cutting the web unrolled from the respective sub-roll in the transverse direction.

[0005] The production of the sub-rolls usually takes place on a first production machine which is spatially separated from a second production machine for cutting and stacking the sections.

[0006] Coils are also usually referred to as bobbins. Therefore, the sub-coils may also be referred to as bobbins.

[0007] It is also known from the prior art to cut and stack the segments, in particular under predetermined climatic conditions, in order to reliably ensure a high quality of the resulting cell stack. Summary of the invention

[0008] The object of the present invention is to provide a device for supplying a production machine of the energy cell production industry with bobbins of wound web-shaped material while maintaining predetermined climatic conditions, a corresponding method and a corresponding system for the energy cell production industry.

[0009] This object is achieved by the features of the independent claim. Further preferred embodiments of the invention can be found in the dependent claims, the drawings and the associated description.

[0010] According to a first aspect of the present application, the object is achieved by a device for providing a production machine in the energy cell production industry with bobbins of wound web-shaped material, the device comprising at least one bobbin changing device and a bobbin handling device, the bobbin handling device being configured to supply bobbins to the at least one bobbin changing device, wherein the bobbin changing device and the bobbin handling device are arranged in a common air-conditioned room, wherein a gate is provided, which is implemented so that the bobbins can be transported into the air-conditioned room through the gate.

[0011] The air exchange with the air conditioning room's surroundings when the bobbins are brought into the air conditioning room can be reduced by the gate, so that the climate conditions in the air conditioning room can be kept at a constant level. This allows process-reliable handling of the material web wound on the bobbins.

[0012] The air-conditioned room preferably comprises an air-conditioning device for setting predetermined climate conditions in the air-conditioned room. For example, the indoor temperature, relative humidity, static pressure and / or air purity can be set or adjusted by means of the air-conditioning device.

[0013] The bobbin can be brought into the air-conditioned room by the lock and positioned there so that it can be touched and picked up by the bobbin handling device. The bobbin handling device then transfers the bobbin to at least one bobbin changing device.

[0014] The at least one bobbin changing device is preferably configured to rotatably store at least one bobbin in order to supply the wound material web thereof to a production machine of the energy cell production industry.

[0015] The bobbin changing device preferably comprises two pick-up mandrels, on each of which a bobbin can be rotatably mounted. Thus, for example, the first pick-up mandrel can comprise a bobbin with an unwound material web, and the second pick-up mandrel can comprise a new, unused bobbin. Before the unwound material web is completely consumed, it can be connected to the material web of the unused bobbin; this is called splicing or joining. The used bobbin is then preferably pulled out of the first pick-up mandrel and removed from the air-conditioning chamber. This can also be done in a corresponding manner by means of a brake. A new, unused bobbin is then inserted onto the first pick-up mandrel and then spliced ​​together with the unwound material web that is now on the second pick-up mandrel. By alternately supplying the first and second pick-up mandrels with new, unused bobbins, the production machine can be supplied with the corresponding material web reliably and preferably even uninterruptedly.

[0016] The lock preferably comprises a fluidically isolable lock chamber, through which the cartridge can be conveyed from the environment into the air-conditioning room. For example, the lock chamber can be hermetically sealed relative to the environment and the air-conditioning room. When a new cartridge is brought into the air-conditioning room or a used cartridge is brought out of the air-conditioning room, the lock chamber causes a reduction in the air volume exchange between the air-conditioning room and the environment. As a result, the air-conditioning device only has to provide less power to compensate for possible deviations between the actual climate and the target climate. The energy consumption requirement of the air-conditioning device can thereby be reduced.

[0017] Preferably, at least one closable environmental door is provided for connecting the lock chamber to the environment, and at least one closable air conditioning chamber door is provided for connecting the lock chamber to the air conditioning chamber. It is further preferred that a control unit is provided, which is arranged to control the at least one environmental door and the at least one air conditioning chamber door so that only one of the doors can be opened at any one time. This can, for example, prevent an air conditioning chamber door and an environmental door from being opened simultaneously, and can also, for example, prevent two environmental doors or two air conditioning chamber doors from being opened simultaneously. By opening only one of the doors at a time, the air volume exchange between the air conditioning chamber and the environment can be further reduced.

[0018] For example, just one environment door and multiple air-conditioning room doors can be provided. Or, for example, just one air-conditioning room door and multiple environment doors can be provided. Of course, multiple environment doors, for example, just four, and multiple air-conditioning room doors, for example, also just four, can also be provided.

[0019] According to a preferred embodiment, the bobbin handling device is provided for automatically, preferably fully automatically picking up the bobbin and delivering it to at least one bobbin changing device. Preferably, the bobbin handling device is provided for picking up the bobbin from the bobbin rack. The bobbin handling device may include a sensor unit, which is provided for detecting whether the bobbin is ready and its ready position. In addition, the bobbin handling device may also include, for example, a robot arm, which includes a picking portion for holding the bobbin. In addition, the robot arm is also provided for delivering the bobbin from a delivery position in the air-conditioned room to at least one bobbin changing device. Since the bobbin is preferably brought into the air-conditioned room through a gate by means of a bobbin rack in the form of a transport trolley, the bobbin handling device may also be referred to as a depalletizer. By automatically delivering the bobbin to the bobbin changing device, the air volume exchange between the air-conditioned room and the environment can be further reduced, because an additional air volume exchange that may occur when an operator enters the air-conditioned room can be prevented.

[0020] The bobbin handling device is preferably also provided for taking used bobbins, whose material web has been completely or almost completely exhausted, from the bobbin changing device and delivering them to the delivery position so that they can be brought out of the conditioning room by means of the creel through the lock.

[0021] Preferably, the bobbin with the wound electrode web or membrane web is stored on at least one bobbin changer. It is further preferred that the bobbin is inserted onto a take-up mandrel on the bobbin changer so that the bobbin is stored rotatably relative to the bobbin changer. The electrode web can be an anode web or a cathode web.

[0022] It is further preferred that the device comprises exactly four bobbin changing devices. The first bobbin changing device stores bobbins with anode webs, the second bobbin changing device stores bobbins with cathode webs, and the third and fourth bobbin changing devices store bobbins with separator webs, respectively. With the aid of such equipped bobbin changing devices, raw materials for forming single cells can be provided to production machines of the energy cell production industry.

[0023] The single cell is composed of a first diaphragm sheet, an anode sheet arranged thereon, a second diaphragm sheet arranged thereon and a cathode sheet arranged thereon; the single cell may also have the following layer sequence: a first diaphragm sheet, a cathode sheet arranged thereon, a second diaphragm sheet arranged thereon and an anode sheet arranged thereon.

[0024] The four bobbin changing devices are preferably equipped with the bobbins by a single common bobbin transport device. This can save additional bobbin changing devices, thereby simplifying the overall structure of the equipment.

[0025] According to another preferred embodiment, the gate comprises a plurality of, preferably parallel, conveying paths, via which the bobbins can be conveyed into the conditioning chamber. It is further preferred that each conveying path is assigned an environmental door and a conditioning chamber door. The parallel arrangement of the conveying paths enables the bobbins handling device to be supplied with different types of bobbins, such as anode webs, cathode webs or membrane webs, almost without delay. Furthermore, each conveying path leads to a separate, predetermined transfer position, at which the bobbins are transferred to the bobbins handling device.

[0026] According to a second aspect of the present application, the task is solved by a system for the energy cell production industry, wherein the system comprises an apparatus as described above and at least one production machine, wherein the at least one production machine is arranged completely or partially in an air-conditioned room together with at least one bobbin changing device and bobbin handling device. The production machine preferably comprises a cutting device and further preferably also a battery stacking device. With the aid of the cutting device, the material web unrolled from the bobbin can be cut transversely to form segments. The segments can then be stacked together with the aid of the battery stacking device to form a battery stack. It goes without saying that the production machine may also comprise other processing units, such as a laminating device and / or a device for forming or placing arrester flags. device.

[0027] By arranging the production machine at least partially in a climate-controlled room, the air exchange between the climate-controlled room and the environment can be further reduced.

[0028] According to a third aspect of the present application, the object is achieved by a method for providing a production machine in the energy cell production industry with a web-shaped material wound on a bobbin, wherein the method is carried out using the above-mentioned device or the above-mentioned system. For the technical effects and advantages of the proposed method, please refer to the above description of the device and system.

[0029] Preferably, at least one bobbin is stored on a creel in the environment of a conditioned room, wherein the creel with at least one bobbin is transported from the environment to the conditioned room via a gate. Preferably, the creel is movable, further preferably autonomously movable. The creel preferably has a housing in which one or more bobbins can be stored. In this way, the housing forms a transport chamber for the bobbins, which can be fluidically isolated from the environment. For example, the transport chamber can be sealed airtightly from the environment. The transport chamber can be loaded with bobbins via at least one access door.

[0030] Preferably, the creel has at least one transport mandrel inside the transport chamber, on which the bobbins can be stored for transport. After loading, at least one transport door is closed, and the creel is driven through the lock in this state. After driving through the lock, the access door in the conditioning chamber is opened; the bobbins are preferably removed from the transport chamber by means of a bobbin handling device.

[0031] The creel further preferably comprises two transport spindles. Thus, for example, a new, unused bobbin can be brought into the conditioning room via a gate on a first transport spindle, while a used bobbin can be brought out of the conditioning room via a gate into the environment on a second pick-up spindle. Alternatively, two new, unused bobbins can also be conveyed simultaneously into the conditioning room on both transport spindles of the creel. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The present invention will be described below according to preferred embodiments with reference to the accompanying drawings, wherein:

[0033] Figure 1 A perspective view showing a system for an energy cell production industry; and

[0034] Figure 2 A top view in section of an apparatus for supplying bobbins to a production machine for the energy cell production industry is shown. DETAILED DESCRIPTION

[0035] Figure 1 A system 100 for manufacturing a battery stack for the energy battery production industry is shown. The system 100 comprises an apparatus 1 for providing a web of material with a winding to a production machine 3 (see Figure 2 ) of the bobbin 2, which production machine is also a component of the system 100.

[0036] The plant 1 comprises a climate room 9 in which the production machine 3 is also arranged so that the production of the battery stack can be carried out under predetermined climatic conditions. To this end, the climate room 9 comprises an air conditioning device (not shown) by which the temperature, relative humidity, static pressure and / or purity of the air can be adjusted.

[0037] In addition, a gate 10 is provided, through which the cylinder 2 (see Figure 2 ) is brought into the air-conditioned room 9 from the environment 12 of the air-conditioned room 9. In the present embodiment, the creel 22 is an autonomous, driverless transport vehicle.

[0038] The lock 10 comprises a lock chamber 11, which can be separated from the environment 12 and the air-conditioning chamber 9 in terms of fluid technology. In addition, the lock 10 comprises four environmental doors 13, 14, 15 and 16, through which the lock chamber 11 can be entered from the environment 12. Four air-conditioning chamber doors 17, 18, 19 and 20 are arranged opposite the environmental doors 13, 14, 15 and 16 (see FIG. Figure 2 ), the lock chamber 11 is connected to the air-conditioning chamber 9 through the air-conditioning chamber door.

[0039] Figure 1The creel 22 shown is in a waiting position in front of the environmental door 15. Once the environmental door 15 is opened, the creel 22 will enter the lock chamber 11 and the environmental door 15 will close again. Only when the environmental door 15 is completely closed will the air conditioning chamber door 19 arranged opposite to the environmental door 15 open (see Figure 2 ), so that the creel 22 can enter the air-conditioning room 9.

[0040] In addition, from Figure 1 It can also be seen that the creel 22 comprises a housing 23 for forming a transport chamber in which the bobbins 2 can be transported while maintaining a microclimate. In the present embodiment, the microclimate can be maintained by the transport chamber formed by the housing 23 being hermetically sealed relative to the environment. Since the transport distances and transport times are usually relatively short, there is no need to actively control and / or regulate the climate in the transport chamber. However, in principle, the creel 22 can also be equipped with a mobile air conditioning device.

[0041] The housing 23 of the creel 22 comprises an access door 32 for loading and unloading the creel 22 of the bobbins 2. The access door 32 is opened only when the creel 22 reaches the air conditioning chamber 9 and the corresponding air conditioning chamber door 19 is closed. Preferably, the creel 22 is also loaded with new, unused bobbins 2 in another air conditioning chamber not shown.

[0042] In order to coordinate the opening and closing of the environment doors 13, 14, 15, 16 and the air-conditioning chamber doors 17, 18, 19, 20 with each other, the device 1 also includes a control unit 21. The control unit is configured to open only one of the doors 16-20 at a time, because this can reduce the air exchange between the environment 12 and the air-conditioning chamber 9.

[0043] The bobbins 2 brought into the conditioning chamber 9 through the lock 10 are subsequently transported by means of the bobbin handling device 8 and by means of four bobbin changing devices 3-6 (see Figure 2 ) are transported to the production machine 3, which are also located in the air-conditioned room 9.

[0044] The production machine 3 comprises a cutting device (not shown) and a battery stacking device (also not shown). The cutting device can be used to cut the material web unrolled from the bobbin 2 in the transverse direction to form segments. These segments are then stacked together to form a battery stack by means of the battery stacking device. In the present embodiment, the production machine 3 is completely arranged in a climate-controlled room 9.

[0045] Figure 2 A top cross-sectional view of the device 1 is shown. It can be seen that four parallel conveying paths of the lock 10 are defined by the environmental doors 13-16 and the air-conditioning chamber doors 17-20 arranged oppositely in pairs.

[0046] It can likewise be seen that the package handling device 8 and the four package changing devices 4 , 5 , 6 and 7 are arranged in the air-conditioning room 9 .

[0047] Between the ambient door 13 and the air-conditioning chamber door 17 there is a first conveying path of the lock 10 , which leads to a first delivery point 24 arranged inside the air-conditioning chamber 9 .

[0048] Between the ambient door 14 and the air-conditioning chamber door 18 there is a second conveying path of the lock 10 , which leads to a second delivery point 25 arranged inside the air-conditioning chamber 9 .

[0049] Between the ambient door 15 and the air-conditioning chamber door 19 there is a third conveying path of the lock 10 , which leads to a third delivery point 26 arranged inside the air-conditioning chamber 9 .

[0050] Between the ambient door 16 and the air-conditioning chamber door 20 there is a fourth conveying path of the lock 10 , which leads to a fourth delivery point 27 arranged inside the air-conditioning chamber 9 .

[0051] Furthermore, as shown in the figures, each delivery position 24 , 25 , 26 or 27 can be assigned an intermediate storage 28 , 28 , 29 or 31 , in which at least one bobbin 2 can be temporarily stored.

[0052] Figure 2 The creel 22 located in the lock chamber 11 moves into the delivery position 24 after the air-conditioning chamber door 17 is opened.

[0053] In the present embodiment, the creel stand 22 comprises two transport spindles (not shown), each for storing a bobbin 2. On the first transport spindle, a new, unused bobbin 2 can be brought into the conditioning chamber 9. The second transport spindle of the creel stand 22 can be equipped with a used bobbin 2 in the conditioning chamber 9.

[0054] Thus, for example, used bobbins 2 can be stored in the intermediate storage 28. As soon as the creel 22 has reached the first transfer position 24, the air conditioning door 17 has been closed and the transport chamber of the creel 22 has been opened, the used bobbins 2 can be pushed from the intermediate storage 28 to the empty transport mandrel of the creel 22 by the handling device 8. Subsequently, new, unused bobbins 2 can be removed from the other transport mandrel of the creel 22 by the handling device 8 and transferred to one of the bobbin changing devices 3-6.

[0055] Alternatively, two transport mandrels can also be used to simultaneously transport two packages 2 into the air conditioning chamber 9. In this case, new, unused packages 2 can also be transported further to one of the package changing devices 4, 5, 6 or 7 via an intermediate connection of one of the intermediate storages 28, 29, 30 and / or 31.

[0056] In this embodiment, the bobbin replacement device 4 is equipped with two bobbins 2 each including a wound cathode web; the bobbin replacement device 4 is equipped with two bobbins 2 each including a wound anode web; the bobbin replacement device 5 is equipped with two bobbins 2 each including a diaphragm web; the bobbin replacement device 6 is equipped with two bobbins 2 each including a diaphragm web. Of course, the bobbin replacement devices 4 to 7 can also be arranged in other orders.

[0057] In the present embodiment, each of the package changing devices 4-7 comprises two picking-up mandrels, namely a first picking-up mandrel for picking up the unwound package 2 and a second picking-up mandrel for picking up a new, unused package 2, so that the material web of an almost completely exhausted package 2 can be connected to the material web of a new, unused package by splicing.

[0058] In the present embodiment, the delivery positions 24-27 are respectively assigned to bobbins 2 of a certain type. Only bobbins 2 with wound cathode webs are delivered to the delivery position 24; only bobbins 2 with wound anode webs are delivered to the delivery position 25; and only bobbins 2 with wound diaphragm webs are delivered to the delivery positions 26 and 27. Of course, other types of bobbins can also be assigned to the delivery positions 24-27. The bobbins 2 provided at the delivery positions 24 to 27 are then delivered to the corresponding bobbin changing devices 4 to 7 by the bobbin handling device 8.

[0059] The used bobbin 2 can be handed over to the bobbin stand 22 by means of the bobbin handling device 8 from the corresponding bobbin changing device 4 , 5 , 6 or 7 at one of the transfer positions 24 , 25 , 26 or 27 in order to be recovered via the lock 10 .

[0060] In addition, via a separate control unit or via Figure 1 The control unit 21 shown can control and / or regulate the automatically moving creel 22 so that it only moves through the lock 10 when the corresponding transfer position 24, 25, 26 or 27 is also free. In this way, unimpeded access to the delivery position 24-27 is ensured and unnecessary opening of the lock chamber 11 is prevented.

[0061] 4-7 direction through the package changing device Figure 1 The production machine 3 shown supplies a corresponding material web by unwinding it from a bobbin 2 which is rotatably stored in a bobbin changing device 4 - 7 .

[0062] Reference numerals list

[0063] 1 device

[0064] 2 bobbins

[0065] 3Production Machines

[0066] 4 Bobbin replacement device

[0067] 5. Bobbin replacement device

[0068] 6. Bobbin changing device

[0069] 7. Bobbin changing device

[0070] 8Bobbins handling device

[0071] 9 Air-conditioned room

[0072] 10 gates

[0073] 11 Lock Chamber

[0074] 12 Environment

[0075] 13 Environmental Gate

[0076] 14 Environmental Gate

[0077] 15 Environmental Gate

[0078] 16 Environmental Gate

[0079] 17 Air conditioning room door

[0080] 18 Air conditioning room door

[0081] 19 Air conditioning room door

[0082] 20 Air conditioning room door

[0083] 21Control Unit

[0084] 22 Creel

[0085] 23 Shell

[0086] 24 submission positions

[0087] 25 submission positions

[0088] 26 Submission Location

[0089] 27 Submission Location

[0090] 28Intermediate storage

[0091] 29Intermediate storage

[0092] 30Intermediate storage

[0093] 31Intermediate storage

[0094] 32 channel door

[0095] 100 systems

Claims

1. A device (1) for providing a production machine (3) for the energy cell production industry with a bobbin (2) with a wound web-shaped material, the device comprising: - at least one bobbin changing device (4, 5, 6, 7), and - a bobbin handling device (8) which is provided for supplying bobbins (2) to the at least one bobbin changing device (4, 5, 6, 7), characterized in that The package changing device (4, 5, 6, 7) and the package handling device (8) are arranged in a common air-conditioned room (9), wherein: A lock (10) is provided, which is designed so that the bobbin (2) can be conveyed through the lock into the air-conditioning chamber (9).

2. The device (1) according to claim 1, characterized in that The lock (10) comprises a fluidically isolable lock chamber (11) through which the bobbin (2) can be conveyed from the environment (12) into the conditioning chamber (9).

3. The device (1) according to claim 2, characterized in that - at least one closable environmental door (13, 14, 15, 16) is provided for connecting the lock chamber (11) to the environment (12), and - In order to connect the lock chamber (11) with the air-conditioning chamber (9), at least one air-conditioning chamber door (17, 18, 19, 20) that can be closed is provided.

4. The device (1) according to claim 3, characterized in that A control unit (21) is provided, which is arranged to control the at least one ambient door (13, 14, 15, 16) and the at least one air-conditioning chamber door (17, 18, 19, 20) so that only one of the doors is open at any point in time.

5. The device (1) according to claim 3 or 4, characterized in that - There is exactly one environmental door (13, 14, 15, 16) and a plurality of air-conditioning room doors (17, 18, 19, 20).

6. The device (1) according to claim 3 or 4, characterized in that - There is exactly one air-conditioning room door (17, 18, 19, 20) and a plurality of environmental doors (13, 14, 15, 16).

7. The device (1) according to one of the preceding claims, characterized in that The bobbin handling device (8) is arranged to automatically pick up the bobbin (2) and to hand it over to the at least one bobbin changing device (4, 5, 6, 7).

8. The device (1) according to one of the preceding claims, characterized in that - The bobbin (2) with the wound electrode web or membrane web is stored on at least one bobbin changing device (4, 5, 6, 7).

9. The device (1) according to one of the preceding claims, characterized in that The lock (10) comprises a plurality of, preferably parallel, conveying paths, via which the bobbins (2) can be conveyed into the conditioning chamber (9).

10. A system (100) for energy cell production industry, characterized in that: The system (100) comprises an apparatus (1) according to one of the preceding claims and at least one production machine (3), wherein: The at least one production machine (3) together with the at least one package changing device (4, 5, 6, 7) and the package handling device (8) are arranged completely or partially in the air-conditioned room (9).

11. A method for providing a production machine (3) for the energy cell production industry with a web-shaped material wound on a bobbin (2), characterized in that: - carrying out the method (200) using a device (1) according to one of claims 1 to 9 or using a system (100) according to claim 10.

12. The method according to claim 11, characterized in that - storing at least one bobbin (2) on a bobbin stand (22) in the environment (12) of a conditioned room (9), wherein: - transporting the creel (22) containing the at least one bobbin (2) from the environment (12) into the air-conditioning room (9) through the lock (10).

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