Roll changing cart and roll changing method

Abstract

This technology allows for the exchange of rolls containing specific substances that react with moisture to generate reactive materials between different pieces of equipment. [Solution] A roll changing trolley used to change rolls containing a specific substance that reacts with moisture to generate a reactive substance comprises a roll storage section having a main body capable of accommodating rolls, an opening for inserting and removing rolls from the main body, and a lid that can open and close to cover the opening, the roll storage section being insertable into equipment capable of controlling the dew point temperature, and a trolley-side air supply pipe connected to the main body that supplies dry air to keep the temperature inside the main body below a predetermined dew point temperature.

Description

Technical Field

[0001] The present disclosure relates to a roll-changing cart and a roll-changing method.

Background Art

[0002] Conventionally, a transport jig for transporting an electrode plate that needs to maintain a low dew point temperature to prevent deterioration due to moisture absorption is known (Patent Document 1). This transport jig supplies dry air to a sealed electrode plate storage section, controls the dew point temperature in the electrode plate storage section within a predetermined range, and suppresses the moisture content in the electrode plate storage section to a desired moisture content or less. The electrode plate is taken in and out of the electrode plate storage section through a door provided in the electrode plate storage section.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In a manufacturing facility controlled to be at or below a predetermined dew point temperature, a product may be manufactured using a roll containing a specific substance that reacts with moisture to generate a reaction substance. This reaction substance may, for example, have a predetermined effect on the human body. At this time, there may be cases where the roll is moved from the first manufacturing facility to the second manufacturing facility, from the manufacturing facility to the storage facility, or from the storage facility to the manufacturing facility. In this case, a roll-changing cart having a roll storage section capable of controlling the dew point temperature may be used to change the roll. However, in the conventional technology, when the roll is taken out of the roll storage section through the door, the specific substance may react with moisture to generate a reaction substance. Therefore, in the conventional technology, it may not be possible to change the roll.

Means for Solving the Problems

[0005] This disclosure can be implemented in the following forms:

[0006] (1) According to one embodiment of the present disclosure, a roll changing trolley is provided. The roll changing trolley, used for changing rolls containing a specific substance that reacts with moisture to generate a reactive substance, comprises a roll storage section having a main body capable of accommodating the roll, an opening for inserting and removing the roll from the main body, and a lid that can be opened and closed to cover the opening, the roll storage section being insertable into equipment capable of controlling the dew point temperature, and a trolley-side air supply pipe connected to the main body and supplying dry air to keep the temperature inside the main body below a predetermined dew point temperature. According to this embodiment, the roll changing trolley can change rolls with the trolley-side roll storage section, which is capable of controlling the dew point temperature, inserted into equipment capable of controlling the dew point temperature. As a result, the roll changing trolley can suppress the generation of a reactive substance when the specific substance reacts with moisture during roll changes. (2) In the above configuration, the lid may be a double structure having a silicone inner lid and a metal outer lid. With this configuration, by making the outer lid out of metal, the rigidity of the outer lid can be increased, and the airtightness of the main body on the trolley side when the outer lid is closed can be increased. Furthermore, by making the inner lid out of silicone, the weight can be reduced compared to the outer lid, and the workability of opening and closing the lid can be increased. Thus, the roll changing trolley can achieve both workability in opening and closing the lid and maintenance of a low dew point environment inside the main body on the trolley side by having a double structure for the lid covering the opening on the trolley side having a high inner lid that can increase workability and an outer lid that can increase airtightness. (3) The above configuration may further include a trolley-side holding part provided within the main body for holding the roll, and an irradiation device that irradiates a laser beam toward a target provided in the equipment in order to align the position of the equipment-side holding part, which is provided within the equipment for holding the roll, with the position of the trolley-side holding part. In this configuration, the position of the equipment-side holding part and the position of the trolley-side holding part can be easily aligned by irradiating a target with a laser beam and adjusting the position of the roll changing trolley. (4) In the above configuration, the trolley-side air supply pipe may have a socket for a coupler that contains a valve which opens when fitted with a plug on a coupler attached to the device-side air supply pipe connected to the dry air generator that generates the dry air, and closes when the fitting with the plug is released. In this configuration, the trolley-side air supply pipe can be easily connected to the device-side air supply pipe. Therefore, by fitting the socket to the plug, dry air can be quickly supplied from the dry air generator into the trolley-side main body. As a result, the temperature inside the trolley-side main body can be quickly brought below a predetermined dew point temperature. Furthermore, by removing the plug from the socket, the roll exchange trolley can be quickly made movable. (5) Another embodiment of the present disclosure provides a method for changing a roll. The method for changing a roll containing a specific substance that reacts with moisture to generate a reactive substance comprises: (a) supplying dry air from a trolley-side air supply pipe connected to a main body capable of housing the roll to bring the temperature inside the main body below a predetermined dew point temperature; (b) inserting a roll storage unit having the main body, an opening for inserting and removing the roll from the main body, and a lid that can open and close to cover the opening, into equipment capable of controlling the dew point temperature; (c) opening the lid inside the equipment; (d) changing the roll between the roll changing trolley and the equipment; and (e) closing the lid inside the equipment and removing the roll storage unit from the equipment. According to this embodiment, the roll can be changed with the trolley-side roll storage unit, which is capable of controlling the dew point temperature, inserted into equipment capable of controlling the dew point temperature. This makes it possible to suppress the generation of a reactive substance by the specific substance reacting with moisture when changing a roll. This disclosure can be implemented in various forms other than the roll changing cart and roll changing method described above. For example, it can be implemented in the form of a manufacturing system equipped with a roll changing cart, manufacturing equipment and other equipment and an air supply unit, a method for manufacturing the roll changing cart and manufacturing system, a method for controlling the roll changing cart and manufacturing system, a computer program that implements the control method, and a non-temporary recording medium on which the computer program is stored. [Brief explanation of the drawing]

[0007] [Figure 1] A diagram showing the general configuration of the manufacturing system. [Figure 2] A diagram showing the detailed configuration of the manufacturing equipment and the roll changing trolley. [Figure 3] A flowchart showing how to change the roll. [Modes for carrying out the invention]

[0008] A. Embodiments: Figure 1 shows a schematic configuration of manufacturing system 1. Manufacturing system 1 is a system for manufacturing products using a roll R containing a specific substance. The specific substance reacts with moisture to generate a reactive substance. This reactive substance may, for example, have a predetermined effect on the human body. Therefore, the roll R must be handled in an environment below a predetermined dew point temperature. In this embodiment, manufacturing system 1 is a system for manufacturing an all-solid-state battery using a roll R around which an electrode containing a sulfide electrolyte as the specific substance is wound. Therefore, the reactive substance is hydrogen sulfide generated when the sulfide reacts with moisture.

[0009] The manufacturing system 1 is installed, for example, in a space where the dew point temperature can be controlled. In this embodiment, the manufacturing system 1 is installed in a portable tent, a fixed tent, or a room, etc., capable of achieving a dew point temperature of -30°C DP or lower. The manufacturing system 1 comprises a first manufacturing equipment 10, a second manufacturing equipment 20, an air supply unit 40, and a roll changing trolley 50.

[0010] The first manufacturing equipment 10 and the second manufacturing equipment 20 are facilities for manufacturing all-solid-state batteries, and include, for example, a coating machine, a press machine, and a slitting machine. The coating machine is a facility for coating the battery material with metal foil. The press machine is a facility for pressing the coated battery material to increase its density. The slitting machine is a facility for cutting off the excess metal foil. The first manufacturing equipment 10 and the second manufacturing equipment 20 each include an unwinding station, a processing station, and a winding station. The winding station sets the roll R before processing at the processing station and sends the roll R towards the processing station. The processing station performs processing on the roll R, such as coating, pressing, and slitting. The winding station winds up the roll R after it has been processed at the processing station.

[0011] The roll exchange cart 50 is used to exchange rolls R between equipment. In this embodiment, the roll exchange cart 50 is used to move rolls R processed at the first manufacturing equipment 10 from the first manufacturing equipment 10 to the second manufacturing equipment 20. Specifically, the user moves the roll exchange cart 50 from a predetermined standby position P0 to a first exchange position P1 where the rolls R are exchanged with the first manufacturing equipment 10. At the first exchange position P1, the user takes the rolls R from the winding station of the first manufacturing equipment 10 and places them in the roll exchange cart 50. Next, the user moves the roll exchange cart 50 from the first exchange position P1 to a second exchange position P2 where the rolls R are exchanged with the second manufacturing equipment 20. At the second exchange position P2, the user attaches the rolls R stored in the roll exchange cart 50 to the unwinding station of the second manufacturing equipment 20. After that, the user returns the roll exchange cart 50 from the second exchange position P2 to the standby position P0. In the following, when it is not necessary to distinguish between the first manufacturing facility 10 and the second manufacturing facility 20, they will simply be referred to as "manufacturing facility 30".

[0012] Figure 2 shows the detailed configuration of the manufacturing equipment 30 and the roll changing trolley 50. The manufacturing equipment 30 includes an equipment-side roll storage section 310, an equipment-side air supply pipe 320, and an equipment-side exhaust pipe 330. The equipment-side roll storage section 310 has an equipment-side shaft section 311, an equipment-side support section 312, an equipment-side main body section 313, an equipment-side opening 314, and a target 315. The equipment-side shaft section 311 is through which the roll R is inserted. The equipment-side shaft section 311 has an equipment-side holding section 311r at its tip to hold the roll R. A concave equipment-side guide section 311p is formed at the tip of the equipment-side shaft section 311 to align the position of the equipment-side holding section 311r with the position of the trolley-side holding section 511r of the roll changing trolley 50, which will be described later. The equipment-side support section 312 supports the base end of the equipment-side shaft section 311. Both the equipment-side shaft portion 311 and the equipment-side support portion 312 are provided within the equipment-side main body portion 313. In other words, the equipment-side main body portion 313 is capable of accommodating the roll R. The equipment-side opening 314 is provided for inserting and removing the roll R from the equipment-side main body portion 313. The target 315 is provided to align the position of the equipment-side holding portion 311r with the position of the trolley-side holding portion 511r when the roll R is replaced. When the equipment-side guide portion 311p and the trolley-side guide portion 511p are fitted together, the target 315 is positioned such that when laser light B is irradiated from the irradiation device 550 of the roll replacement trolley 50 (described later), the irradiation position BO of the laser light B is located at the center position TO of the target 315.

[0013] As shown in Figure 1, the equipment-side roll storage section 310 further includes a curtain cover section 316, a noren-shaped cover section 317, a door section 318, and a base section 319. The curtain cover section 316 is attached to the equipment-side main body section 313 while covering the equipment-side opening 314. The curtain cover section 316 is, for example, a roll curtain-like cover that can be slid vertically by the user. The noren-shaped cover section 317 is provided on the curtain cover section 316. The noren-shaped cover section 317 is a noren-like cover that allows the roll storage section 510 on the trolley side of the roll changing trolley 50 (described later) or the user's hand to be inserted into the equipment-side main body section 313. The door section 318 covers the equipment-side opening 314 so that it can be opened and closed. The base section 319 supports the equipment-side main body section 313.

[0014] As shown in Figure 2, the equipment-side roll storage section 310 further includes an equipment-side air inlet 313a for receiving dry air into the equipment-side main body section 313, and an equipment-side exhaust port 313b for exhausting air from inside the equipment-side main body section 313 to the outside of the equipment-side main body section 313. The equipment-side air inlet 313a is connected via an equipment-side air supply pipe 320 to a dry air generator (not shown) that generates dry air below a predetermined dew point temperature. The equipment-side air supply pipe 320 is provided with an equipment-side air supply valve (not shown) for adjusting the amount of air supplied. The equipment-side exhaust port 313b is connected to the outside of the equipment-side main body section 313 via an equipment-side exhaust pipe 330. The equipment-side exhaust pipe 330 is provided with an equipment-side exhaust valve (not shown) for adjusting the amount of exhaust.

[0015] To keep the temperature inside the main unit 313 below a predetermined dew point, the equipment-side air supply pipe 320 supplies dry air from the dry air generator to the equipment-side air inlet 313a. When the door 318 is closed, the opening of the equipment-side air supply valve and the equipment-side exhaust valve are adjusted so that the air pressure inside the main unit 313 is positive compared to the air pressure outside the main unit 313. When the door 318 is open, the opening of the equipment-side air supply valve and the equipment-side exhaust valve are adjusted so that the airflow inside the main unit 313 is greater than when the door 318 is closed. In this way, by preventing air from entering from the equipment-side opening 314, the temperature inside the main unit 313 is controlled to be below a predetermined dew point. In this embodiment, the equipment-side air supply pipe 320 supplies dry air below -70°C DP generated by the dry air generator to the main unit 313. As a result, even when the door section 318 is opened or closed, the inside of the equipment-side main body section 313 is maintained in a low dew point environment of -60°C DP or lower.

[0016] The air supply unit 40 shown in Figure 1 is a unit for generating dry air and supplying the generated dry air to the roll changing trolley 50. In this embodiment, the air supply unit 40 is installed at a standby position P0 of the roll changing trolley 50, which is different from the roll changing positions P1 and P2. The air supply unit 40 comprises a dry air generator 410 and a device-side air supply pipe 430. The dry air generator 410 generates dry air with a dew point temperature such that the inside of the trolley-side main body 513 of the roll changing trolley 50 (described later) can be maintained below a predetermined dew point temperature for a predetermined period of time, even after the supply of dry air has been stopped. In this embodiment, in order to maintain the inside of the trolley-side main body 513 below -60°CDP for 10 minutes even after the supply of dry air has been stopped, the dry air generator 410 generates dry air below -70°CDP. The dry air generator 410 is, for example, a dehumidifier. The equipment-side air supply pipe 430 supplies dry air generated by the dry air generator 410 to the roll changing trolley 50. One end of the equipment-side air supply pipe 430 is connected to the dry air generator 410. The other end of the equipment-side air supply pipe 430 is fitted with a plug 451 of a coupler 45.

[0017] As shown in Figure 2, the roll changing trolley 50 includes a trolley-side roll storage section 510, a trolley-side air supply pipe 520, a trolley-side exhaust pipe 530, a dew point meter 540, an irradiation device 550, a trolley-side support section 560, a base section 570, wheels 580, and a gripping section 590.

[0018] The trolley-side roll storage section 510 is insertable into equipment capable of controlling the dew point temperature. The trolley-side roll storage section 510 includes a trolley-side shaft section 511, a trolley-side main body section 513, a trolley-side opening 514, lids 515 and 516, and a filter 517. The trolley-side shaft section 511 is through which the roll R is inserted. The trolley-side shaft section 511 is formed of a metal material mainly composed of light metals such as aluminum. The trolley-side shaft section 511 has a trolley-side holding section 511r at its tip to hold the roll R. A convex trolley-side guide section 511p is formed at the tip of the trolley-side shaft section 511 to align the position of the equipment-side holding section 311r with the position of the trolley-side holding section 511r. The trolley-side guide section 511p fits into a concave equipment-side guide section 311p. The trolley-side holding portion 511r is provided within the trolley-side main body portion 513. In other words, the trolley-side main body portion 513 is capable of accommodating the roll R. The trolley-side main body portion 513 is fixed to the trolley-side shaft portion 511. The trolley-side main body portion 513 is formed from a metal material mainly composed of heavy metals such as stainless steel. The trolley-side opening 514 is provided for inserting and removing the roll R from the trolley-side main body portion 513. The lids 515 and 516 cover the trolley-side opening 514 so as to be openable and closable. In this embodiment, the lids 515 and 516 are double structures having a silicone inner lid 515 and a metal outer lid 516. The filter 517 is installed inside the trolley-side main body portion 513 so as to cover the trolley-side air intake port 513a.

[0019] The carriage-side roll storage unit 510 further includes a carriage-side air supply port 513a for receiving dry air within the carriage-side main body 513 and a carriage-side exhaust port 513b for exhausting air from inside the carriage-side main body 513 to the outside of the carriage-side main body 513. The carriage-side air supply port 513a is connected to the dry air generator 410 via the carriage-side air supply pipe 520 and the device-side air supply pipe 430. One end of the carriage-side air supply pipe 520 is connected to the carriage-side air supply port 513a. A socket 452 of the coupler 45 is attached to the other end of the carriage-side air supply pipe 520. The socket 452 incorporates a valve 452v that opens by fitting with the plug 451 of the coupler 45 attached to the device-side air supply pipe 430 shown in FIG. 1 and closes when the fitting with the plug 451 is released. The carriage-side exhaust port 513b is connected to the outside of the carriage-side main body 513 via the carriage-side exhaust pipe 530. A carriage-side exhaust valve 535 for adjusting the exhaust volume is provided in the carriage-side exhaust pipe 530.

[0020] In order to make the inside of the equipment-side main body 313 below a predetermined dew point temperature, with the lids 515, 516 attached to the carriage-side main body 513, the plug 451 of the coupler 45 and the socket 452 are fitted together. As a result, the carriage-side air supply pipe 520 supplies dry air from the dry air generator 410 to the carriage-side air supply port 513a. At this time, the carriage-side exhaust valve 535 is opened. In this way, by exhausting air from the carriage-side main body 513 while receiving the supply of dry air, the inside of the carriage-side main body 513 is replaced with dry air. When moving the roll-changing carriage 50, after the carriage-side exhaust valve 535 is closed, the fitting between the plug 451 of the coupler 45 and the socket 452 is released. As a result, even after the supply of dry air is stopped, the inside of the carriage-side main body 513 is controlled to be below a predetermined dew point temperature. In this embodiment, the carriage-side air supply pipe 520 supplies dry air with a DP of -70°C or lower generated by the dry air generator 410 to the carriage-side main body 513 via the device-side air supply pipe 430. Then, when the carriage-side exhaust valve 535 is closed, the carriage-side main body 513 is sealed. As a result, even when the supply of dry air is stopped and the lids 515, 516 are opened and closed, the inside of the carriage-side main body 513 is maintained in a low dew point environment of -60°C DP or lower.

[0021] The dew point meter 540 shown in FIG. 2 measures the dew point temperature inside the carriage-side main body 513. The dew point meter 540 is fixed to the carriage-side main body 513. The irradiation device 550 irradiates the target 315 provided on the equipment with the laser beam B. The irradiation device 550 is, for example, a marking laser. The irradiation device 550 may also be a laser irradiator. The irradiation device 550 is fixed to the carriage-side shaft portion 511. The carriage-side support portion 560 supports the base end of the carriage-side shaft portion 511. The base portion 570 supports the carriage-side support portion 560. The wheels 580 are attached to the base portion 570 and can rotate on a road surface F such as a floor surface. The gripping portion 590 is gripped by the user when moving the roll-changing carriage 50. The gripping portion 590 is attached to the base portion 570.

[0022] FIG. 3 is a flowchart showing a roll-changing method. The method shown in FIG. 3 is started, for example, according to the progress of each process in the first manufacturing equipment 10.

[0023] In step S1, the user supplies dry air from the trolley-side air supply pipe 520 connected to the trolley-side main body 513 capable of accommodating the roll R, thereby keeping the temperature inside the trolley-side main body 513 below a predetermined dew point temperature. Specifically, as shown in Figure 1, the user operates the empty roll exchange trolley 50, which does not hold the roll R, to the standby position P0. Then, with the covers 515 and 516 attached to the trolley-side main body 513, the user engages the plug 451 of the coupler 45 attached to the device-side air supply pipe 430 located at the standby position P0 with the socket 452 of the coupler 45 attached to the trolley-side air supply pipe 520. After that, with the trolley-side exhaust valve 535 open, the user drives the dry air generator 410 to generate dry air below -70°CDP. After confirming that the dew point temperature indicated by the dew point meter 540 is below -70°CDP, the user closes the trolley-side exhaust valve 535 at a predetermined timing. Subsequently, the user removes the plug 451 from the socket 452 attached to the trolley-side air supply pipe 520. This allows the user to create a low dew point environment and maintain the temperature inside the trolley-side main body 513 below -60°CDP for 10 minutes.

[0024] In step S2, as shown in Figure 3, the user prepares to retrieve the roll R from the winding station of the first manufacturing equipment 10. Specifically, as shown in Figure 1, the user operates the roll exchange trolley 50 to move it from the standby position P0 to the first exchange position P1. The user then removes the outer cover 516 from the trolley-side main body 513 to open the outer cover 516. After that, the user opens the door 318 provided on the winding station of the first manufacturing equipment 10 to prepare the trolley-side roll storage section 510 for receiving.

[0025] In step S3 shown in Figure 3, the user inserts the trolley-side roll storage unit 510 into the first manufacturing equipment 10. Specifically, as shown in Figures 1 and 2, the user inserts the trolley-side roll storage unit 510 into the equipment-side main body 313 of the first manufacturing equipment 10, while peeling back the curtain-like cover unit 317 provided on the equipment-side opening 314, until at least the inner lid 515 is housed inside the equipment-side main body 313.

[0026] In step S4, the user opens the inner lid 515 inside the first manufacturing equipment 10. Specifically, the user opens the inner lid 515 by removing it inside the equipment-side main body 313 of the first manufacturing equipment 10, which is controlled to a temperature of -60°C DP or lower.

[0027] In step S5, the user exchanges the roll R between the roll exchange trolley 50 and the first manufacturing equipment 10. Specifically, as shown in Figure 2, the user irradiates the target 315 provided on the first manufacturing equipment 10 with laser light B from the irradiation device 550. The user adjusts the position of the roll exchange trolley 50 so that the irradiation position BO of the laser light B approaches the center position TO of the target 315. Then, the user further inserts the roll exchange trolley 50 into the equipment-side main body 313 and fits the trolley-side guide part 511p into the equipment-side guide part 311p. This connects the equipment-side shaft part 311 and the trolley-side shaft part 511. After that, the user slides the roll R held by the equipment-side holding part 311r towards the trolley-side holding part 511r. This allows the user to remove the roll R from the equipment-side holding part 311r located at the winding station of the first manufacturing equipment 10 and move the roll R to the roll exchange trolley 50.

[0028] In step S6 shown in Figure 3, the user closes the inner lid 515 inside the first manufacturing equipment 10. Specifically, the user closes the inner lid 515 by installing it inside the equipment-side main body 313, which is controlled to a temperature of -60°C DP or lower.

[0029] In step S7, the user removes the trolley-side roll storage unit 510 from the first manufacturing equipment 10. Specifically, the user removes the trolley-side roll storage unit 510 from the first manufacturing equipment 10 by lifting the curtain-like cover unit 317 provided at the equipment-side opening 314.

[0030] In step S8, the user closes the outer cover 516 by attaching it to the main body 513 on the trolley side. However, if the distance between the first replacement position P1 and the second replacement position P2 is very short, or if the time required to replace the roll R is very short, step S8 may be omitted as long as the dew point temperature inside the main body 513 on the trolley side can be maintained at -60°CDP or lower until the end of this flow.

[0031] In step S9, the user prepares to attach the roll R taken from the first manufacturing equipment 10 to the unwinding station of the second manufacturing equipment 20. Specifically, as shown in Figure 1, the user operates the roll exchange trolley 50 holding the roll R to move it from the first exchange position P1 to the second exchange position P2. After that, the user opens the door 318 provided on the unwinding station of the second manufacturing equipment 20 to make the trolley-side roll storage section 510 ready to receive the roll.

[0032] In step S10 shown in Figure 3, the user inserts the trolley-side roll storage unit 510 into the second manufacturing equipment 20. Specifically, similar to step S3, the user inserts the trolley-side roll storage unit 510 into the equipment-side main body 313 of the second manufacturing equipment 20 until at least the inner lid 515 is housed inside the equipment-side main body 313, while peeling back the curtain-like cover 317 provided on the equipment-side opening 314.

[0033] In step S11, the user opens the inner cover 515 inside the second manufacturing equipment 20. Specifically, similar to step S4, the user opens the inner cover 515 by removing it inside the equipment-side main body 313 of the second manufacturing equipment 20, which is controlled to a temperature of -60°C DP or lower.

[0034] In step S12, the user exchanges the roll R between the roll exchange trolley 50 and the second manufacturing equipment 20. Specifically, similar to step S5, the user irradiates the target 315 with laser light B from the irradiation device 550 and aligns the position of the equipment-side holding part 311r with the position of the trolley-side holding part 511r, thereby connecting the equipment-side shaft part 311 and the trolley-side shaft part 511. The user then slides the roll R held by the trolley-side holding part 511r towards the equipment-side holding part 311r. This allows the user to move the roll R from the roll exchange trolley 50 and attach the roll R to the equipment-side holding part 311r located at the unwinding station of the second manufacturing equipment 20.

[0035] In step S13, the user closes the inner lid 515 inside the second manufacturing equipment 20. Specifically, similar to step S6, the user closes the inner lid 515 by installing it inside the equipment-side main body 313, which is controlled to a temperature of -60°C DP or lower.

[0036] In step S14, the user removes the trolley-side roll storage unit 510 from the second manufacturing equipment 20. Specifically, similar to step S7, the user removes the trolley-side roll storage unit 510 from the second manufacturing equipment 20 by lifting the curtain-like cover unit 317 provided on the equipment-side opening 314.

[0037] In step S15, the user closes the outer cover 516 by attaching it to the bogie-side main body 513. The user completes the series of operations from step S1 to step S15 within 10 minutes. After the supply of dry air is stopped, the dew point temperature inside the bogie-side main body 513 gradually rises. When the covers 515 and 516 are opened, the dew point temperature inside the bogie-side main body 513 rises further. Therefore, in preparation for the next roll R replacement, after step S15, it is preferable for the user to return the roll replacement bogie 50 from the second replacement position P2 to the standby position P0, and return the dew point temperature inside the bogie-side main body 513 to -70°CDP or lower, similar to step S1.

[0038] According to the above embodiment, the roll changing trolley 50 can change the rolls R while the trolley-side roll storage section 510, which is capable of controlling the dew point temperature, is inserted into equipment capable of controlling the dew point temperature. In other words, the roll changing trolley 50 can change the rolls R while maintaining a low dew point environment without exposing the rolls R to moisture outside the equipment. As a result, the roll changing trolley 50 can suppress the generation of reactive substances when specific substances react with moisture during roll changing.

[0039] Furthermore, according to the above embodiment, the roll changing trolley 50 is equipped with an outer cover 516 that can be opened and closed to cover the trolley-side opening 514. This outer cover 516 is made of metal. By making the outer cover 516 out of metal, the rigidity of the outer cover 516 can be increased. This improves the airtightness of the trolley-side main body 513 when the outer cover 516 is closed. Therefore, the roll changing trolley 50 can more reliably suppress the rise in the dew point temperature inside the trolley-side main body 513 and the generation of reactive substances when changing the rolls R. However, making the outer cover 516 out of metal may increase the weight. If the weight increases, it may be difficult to open and close the outer cover 516 in the limited space inside the equipment-side main body 313. Therefore, the roll changing trolley 50 is further equipped with an inner cover 515 that can be opened and closed to cover the trolley-side opening 514. This inner cover 515 is made of silicone. By making the inner cover 515 out of silicone, the weight can be reduced compared to the outer cover 516. Therefore, a double structure is provided, comprising a tall inner lid 515 that can be easily opened and closed within the equipment-side main body 313 to improve workability, and an outer lid 516 that can improve airtightness. By opening and closing the inner lid 515 inside the equipment and the outer lid 516 outside the equipment, the following can be achieved. In this case, the roll changing trolley 50 can achieve both ease of operation in opening and closing the lids 515 and 516 and maintenance of a low dew point environment inside the trolley-side main body 513. Note that the configuration of the lids 515 and 516 is not limited to the above.

[0040] Furthermore, according to the above embodiment, by fitting the trolley-side guide portion 511p to the equipment-side guide portion 311p, the positions of the equipment-side holding portion 311r and the trolley-side holding portion 511r can be aligned, and the equipment-side shaft portion 311 and the trolley-side shaft portion 511 can be connected. However, when changing the roll R, the tip of the shaft portion 311, 511 may not be visible to the user. Therefore, the roll changing trolley 50 is further equipped with an irradiation device 550 that irradiates a target 315 provided on the equipment with laser light B. By adjusting the position of the roll changing trolley 50 so that the irradiation position BO of the laser light B approaches the center position TO of the target 315, the positions of the equipment-side holding portion 311r and the trolley-side holding portion 511r can be easily aligned. Thus, the roll changing trolley 50 can easily connect the equipment-side shaft portion 311 and the trolley-side shaft portion 511. The method for aligning the equipment-side holding portion 311r and the trolley-side holding portion 511r is not limited to the above.

[0041] Furthermore, according to the above embodiment, a plug 451 of a coupler 45 is attached to the device-side air supply pipe 430 connected to the dry air generator 410. A socket 452 of a coupler 45, which incorporates a valve 452v that opens when fitted with the plug 451 and closes when the fitting with the plug 451 is released, is attached to the bogie-side air supply pipe 520 connected to the bogie-side air supply pipe 430. This allows the bogie-side air supply pipe 520 to be easily connected. Therefore, by fitting the socket 452 to the plug 451, dry air can be quickly supplied from the dry air generator 410 into the bogie-side body 513. As a result, the temperature inside the bogie-side body 513 can be quickly brought below a predetermined dew point temperature. Furthermore, by removing the plug 451 from the socket 452, the roll exchange bogie 50 can be quickly made movable.

[0042] Furthermore, according to the above embodiment, the dry air supplied from the trolley-side air supply pipe 520 passes through the filter 517. This makes the dry air supplied from the trolley-side air supply pipe 520 a laminar flow. As a result, the roll-changing trolley 50 can evenly supply dry air throughout the entire trolley-side main body 513. Therefore, the temperature inside the trolley-side main body 513 can be quickly brought below a predetermined dew point temperature.

[0043] Furthermore, according to the above embodiment, the rigidity of the bogie-side main body 513 can be increased by making the bogie-side main body 513 out of a metal mainly composed of heavy metals. This improves the airtightness of the bogie-side main body 513 when the lids 515 and 516 are closed. Therefore, the roll-changing bogie 50 can more reliably suppress the rise in the dew point temperature inside the bogie-side main body 513 and the generation of reactive substances when the roll R is changed.

[0044] Furthermore, according to the above embodiment, by making the bogie-side shaft portion 511 out of metal mainly composed of light metal, it is possible to suppress the bending of the bogie-side shaft portion 511 due to the weight of the roll R.

[0045] Furthermore, according to the above embodiment, the roll exchange trolley 50 can move the roll R from the first manufacturing equipment 10 to the second manufacturing equipment 20.

[0046] B. Other embodiments: (B1) Manufacturing system 1 may be used for manufacturing purposes other than all-solid-state batteries. In other words, the roll changing cart 50 may be used to change rolls R containing specific substances other than sulfides.

[0047] (B2) The manufacturing system 1 may further include storage facilities for storing the rolls R. In this case, the roll changing trolley 50 may be used to move the rolls R from the manufacturing equipment 30 to the storage facilities, or from the storage facilities to the manufacturing equipment 30.

[0048] (B3) At least some of the operations of the roll changing method may be performed automatically by a machine. For example, the opening and closing of the lids 515 and 516 may be performed automatically by a machine in response to instructions from the user via a remote controller. The roll changing cart 50 may also be moved by unmanned operation.

[0049] This disclosure is not limited to the embodiments described above, and can be implemented in various configurations without departing from its spirit. For example, the technical features of the embodiments corresponding to the technical features in each form described in the summary of the invention can be replaced or combined as appropriate in order to solve some or all of the above-described problems, or to achieve some or all of the above-described effects. Furthermore, if a technical feature is not described as essential in this specification, it can be deleted as appropriate. [Explanation of Symbols]

[0050] 1...Manufacturing system, 10...First manufacturing equipment, 20...Second manufacturing equipment, 30...Manufacturing equipment, 40...Air supply unit, 45...Coupler, 50...Roll changing trolley, 310...Equipment-side roll storage section, 311...Equipment-side shaft section, 311p...Equipment-side guide section, 311r...Equipment-side holding section, 312...Equipment-side support section, 313...Equipment-side main body section, 313a...Equipment-side air intake port, 313b...Equipment-side exhaust port, 314...Equipment-side opening, 315...Target, 316...Curtain cover section, 317...Noren-shaped cover section, 318...Door section, 319...Base section, 320...Equipment-side air intake pipe, 330...Equipment-side exhaust pipe, 410...Dry air generator, 430...Equipment-side air intake pipe, 451...Plug, 452 ...Socket, 452v...Valve, 510...Bogie-side roll storage section, 511...Bogie-side shaft section, 511p...Bogie-side guide section, 511r...Bogie-side holding section, 513...Bogie-side main body section, 513a...Bogie-side air intake port, 513b...Bogie-side exhaust port, 514...Bogie-side opening, 515...Inner cover, 516...Outer cover, 517...Filter, 520...Bogie-side air intake pipe, 530...Bogie-side exhaust pipe, 535...Bogie-side exhaust valve, 540...Dew point meter, 550...Irradiation device, 560...Bogie-side support section, 570...Base section, 580...Wheel, 590...Gripping section, B...Laser beam, BO...Irradiation position, F...Road surface, P0...Standby position, P1...First replacement position, P2...Second replacement position, R...Roll, TO...Center position

Claims

1. A roll changing cart used for changing rolls containing a specific substance that reacts with moisture to generate a reactive substance, A roll storage unit having a main body capable of accommodating the roll, an opening for inserting and removing the roll from the main body, and a lid that can open and close to cover the opening, wherein the roll storage unit can be inserted into equipment capable of controlling the dew point temperature, A roll changing trolley comprising a trolley-side air supply pipe connected to the main body and supplying dry air to keep the temperature inside the main body below a predetermined dew point temperature.

2. A roll changing trolley according to claim 1, The aforementioned lid is a double-layered structure having a silicone inner lid and a metal outer lid, for a roll changing trolley.

3. A roll changing trolley according to claim 1, further, A trolley-side holding portion is provided within the main body portion and holds the roll, A roll changing trolley comprising: an irradiation device that irradiates a laser beam toward a target provided in the equipment in order to align the position of the equipment-side holding part that holds the roll provided in the equipment with the position of the trolley-side holding part.

4. A roll changing trolley according to claim 1, A roll changing trolley, wherein the trolley-side air supply pipe has a socket for a coupler that contains a valve that opens when it engages with a plug of a coupler attached to an air supply pipe on the device side connected to a dry air generating device that generates dry air, and closes when the engagement with the plug is released.

5. A method for replacing rolls containing a specific substance that reacts with moisture to generate a reactive substance, (a) A step of supplying dry air from a trolley-side air supply pipe connected to a main body capable of housing the roll, thereby lowering the temperature inside the main body to a predetermined dew point temperature, (b) Inserting a roll storage unit having the main body, an opening for inserting and removing the roll from the main body, and a lid that can open and close to cover the opening, into the equipment capable of controlling the dew point temperature, (c) The step of opening the lid within the equipment, (d) A step of exchanging the roll between the roll exchange trolley and the equipment, (e) The step of closing the lid within the equipment, A method for replacing rolls, comprising the step of removing the roll storage section from the equipment.

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