WO2011001648A1 - 両面塗工基材用搬送装置 - Google Patents
両面塗工基材用搬送装置 Download PDFInfo
- Publication number
- WO2011001648A1 WO2011001648A1 PCT/JP2010/004226 JP2010004226W WO2011001648A1 WO 2011001648 A1 WO2011001648 A1 WO 2011001648A1 JP 2010004226 W JP2010004226 W JP 2010004226W WO 2011001648 A1 WO2011001648 A1 WO 2011001648A1
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- WO
- WIPO (PCT)
- Prior art keywords
- rotating body
- base material
- body unit
- substrate
- coating
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
- H01M4/0404—Methods of deposition of the material by coating on electrode collectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
- B05C9/04—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material to opposite sides of the work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
- B65H23/022—Registering, tensioning, smoothing or guiding webs transversely by tentering 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
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
- B65H23/032—Controlling transverse register of web
- B65H23/0324—Controlling transverse register of web by acting on lateral regions of the web
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
- B65H23/032—Controlling transverse register of web
- B65H23/038—Controlling transverse register of web by rollers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/88—Processes of manufacture
- H01M4/8825—Methods for deposition of the catalytic active composition
- H01M4/8828—Coating with slurry or ink
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0254—Coating heads with slot-shaped outlet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2252/00—Sheets
- B05D2252/02—Sheets of indefinite length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2252/00—Sheets
- B05D2252/10—Applying the material on both sides
-
- 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
- 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
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Definitions
- the present invention relates to a transport device for a double-sided coated base material in which a coating liquid is coated on both front and back surfaces used for electrodes of secondary batteries, fuel cells and the like.
- a double-sided coated base material is used for electrodes of secondary batteries and fuel cells.
- the double-sided coated base material is obtained by coating a coating liquid containing an active material on both the front and back surfaces of a base material to be a core body to form a coated surface.
- the process for producing a double-sided coated substrate is usually performed by first coating the surface of the substrate to be the core with the surface coating die head, and at the same time the back surface is coated with the back coating die head. And a step of transporting the double-side coated base material to a drying furnace to dry both coated surfaces, and a step of winding the double-side coated base material.
- the coating substrate is formed by gas injection from the gas injection nozzles provided at the upper and lower parts in the drying furnace. Is supported.
- the only stable support portion is the back coating die head and the backup roller at the back surface coating point on the base material.
- the coated base material since the coated base material is in a floating state from the coating point to the drying process in the drying furnace, the coated base material being transported becomes unstable, and the base material being transported may flutter. Wrinkles are likely to occur.
- Patent Document 2 Japanese Patent Application No. 2005-213037 (Patent Document 2), which is an earlier application by the applicant of the present application, both end portions that are uncoated portions in the width direction of the double-sided coated base material from the front and back sides of the base material.
- a pair of rotating bodies that are supported by nipping are disposed. And the direction with respect to the conveyance direction of a pair of rotating bodies arranged at both ends is adjusted and changed simultaneously in conjunction with the link mechanism, and the base material is tensioned outward in the width direction, thereby preventing flickering of the base material and wrinkle stretching. Is going.
- the base material between them is the base material transport direction and the base material. It becomes a catenary line state in the width direction. Due to the influence of the weight of the base material and the coating liquid, the contact pressure with the base material at the right and left sides in the width direction of the base material at the liquid discharge part of the coating die head becomes uneven, and the coating is applied at the part where the contact pressure is high. There is also a problem that a coating thickness unevenness occurs due to a phenomenon that the working liquid is difficult to be produced.
- the present invention reduces the occurrence of complex flickering and wrinkles that differ between the left and right sides of the substrate in the width direction when the double-sided coated substrate is conveyed, thereby causing coating thickness irregularities at the discharge part of the coating die head.
- An object of the present invention is to provide a transport device for a double-sided coated substrate that is difficult.
- the conveying apparatus for double-sided coating base materials includes a surface coating die head and a back coating die head, a drying furnace, a first rotating body unit, and a second rotating body unit.
- the die head for surface coating and the die head for back surface coating are devices for applying a coating solution to both the front and back surfaces of a substrate.
- the drying furnace is an apparatus for forming a coating film on both the front and back surfaces of a base material by drying the coating liquid adhering to the base material.
- the first rotating body unit and the second rotating body unit are devices provided independently at both ends in the width direction of the base material on the downstream side or the upstream side in the conveyance direction of the back coating die head.
- Each of the first rotating body unit and the second rotating body unit has a pair of rotating bodies and a rotating body turning portion.
- the pair of rotating bodies grips both ends in the width direction of the base material from the front and back surfaces.
- the rotating body swivel unit is configured so that the rotation axes of the pair of rotating bodies are inclined to the downstream side in the substrate conveyance direction when viewed from the outside in the substrate width direction with respect to a line perpendicular to the substrate conveyance direction. Can be individually changed between the first rotating body unit and the second rotating body unit.
- this apparatus in the conveyance of the double-sided coated base material, by separately providing a rotary unit that grips the base material from the front and back surfaces at both ends of the base material, by changing each operation individually, It is possible to reliably reduce the occurrence of substrate flickering and wrinkles that occur during conveyance of the substrate, and to reduce the occurrence of uneven coating thickness in the coating portion on the substrate. As a result, the conveyance of the substrate is stable, and a good substrate can be obtained.
- Each of the first rotating body unit and the second rotating body unit may further include a moving device that individually moves the pair of rotating bodies in the conveyance direction of the base material.
- Each of the first rotating body unit and the second rotating body unit may further include a gripping force variable device that individually changes the gripping force gripping the base material by the pair of rotating bodies from the front and back surfaces of the base material. Good.
- each of the first rotating body unit and the second rotating body unit further includes a rotation speed variable device that individually changes the rotation speed of the drive wheels in accordance with the substrate conveyance speed.
- the rotating body turning section may be able to adjust the inclination angle of the pair of rotating bodies with respect to the substrate conveyance direction within a range of 0 to 20 degrees.
- a plurality of first rotating body units and second rotating body units may be arranged in the substrate transport direction, and the rotation speed, inclination angle, or gripping force of all the rotating body units may be set individually.
- the rotary unit for gripping the base material from the front and back surfaces can be provided independently at both ends of the base material, and each operation can be individually changed. Therefore, the conveyance of the substrate is stable, and a non-defective substrate can be obtained.
- FIG. 2 is a “II arrow view” in FIG. 1, and is a view of the arrangement of the rotating body unit seen from a plane.
- FIG. 3 is a “III-III arrow view” in FIG. 2 and is a view of the arrangement of the rotating body unit as viewed from the front.
- FIG. 4 is a “IV-IV arrow view” in FIG. 2 and is a view of the rotating body unit as viewed from the side.
- FIG. 5 is a “V arrow view” in FIG. 4. It is a top view which shows the direction of the rotary body unit with respect to a base material conveyance direction. It is a block block diagram of the control board which controls a rotary body unit.
- FIG. 1A is a schematic view showing the entire conveying device for a double-sided coated substrate according to the present invention.
- the transport apparatus 100 is an apparatus for applying a coating liquid on both surfaces of a base material 1 that becomes a core of an electrode of a secondary battery or a fuel cell.
- the transport apparatus 100 mainly includes a backup roller 2, a surface coating die head 3, a back surface coating die head 4, a rotating body unit 20, and a drying device 5 from the upstream side toward the downstream side in the transport direction. Yes.
- various rollers and motors for transporting the substrate 1 are not shown.
- the backup roller 2 and the surface coating die head 3 face each other in the horizontal direction.
- the substrate 1 is moved obliquely from below to the opposite portion of the backup roller 2 and the die head 3, and is further changed in direction by the backup roller 2, and thereafter moved in the horizontal direction.
- the surface coating die head 3 is an apparatus for coating the surface of the substrate 1 with a coating liquid containing an active material.
- the back coating die head 4 is a device for supporting the base material 1 from below and for coating the back surface of the base material 1 with a coating liquid containing an active material.
- the drying furnace 5 is an apparatus for drying the substrate 1 to which the coating liquid has been applied.
- gas jet nozzles 6 for jetting a gas for drying the coated surface are provided at the top and bottom, and the double-side coated base material 1 coated on both sides is conveyed in a floating state by the jet gas. .
- the rotator unit 20 is disposed between the back coating die head 4 and the entrance of the drying furnace 5. Specifically, the rotator unit 20 includes both end portions in the width direction of the double-side coated substrate 1.
- the first rotating body unit 20A and the second rotating body unit 20B are disposed in the uncoated portion.
- Each of the first rotating body unit 20A and the second rotating body unit 20B has a pair of rotating bodies (described later).
- the description of the rotating body unit 20 will be made only on the first rotating body unit 20A because the first rotating body unit 20A and the second rotating body unit 20B have the same symmetrical structure.
- FIG. 1B shows a case where the rotating body unit 20 is disposed between the backup roller 2 and the back coating die head 4 in the conveying direction as the second embodiment.
- the rotating body unit 20 is arranged at two places between the backup roller 2 and the back coating die head 4 and between the back coating die head 4 and the inlet of the drying furnace 5. The case where it is done is shown. In this embodiment, a total of four rotating body units are provided.
- the first rotating body unit 20 ⁇ / b> A is installed on the frame 7 constituting the transport device 100 as shown in FIGS. 2 and 3.
- the first rotating body unit 20A includes a free roller 21 and a driving roller 22, which are a pair of rotating bodies, a rotating body turning portion 23, and a unit driving portion 24.
- the free rollers 21 are in contact with uncoated portions at both ends of the base material width direction on the surface 8 of the base material 1.
- the driving roller 22 is in contact with uncoated portions at both ends of the back surface 9 of the substrate 1 in the substrate width direction.
- the rotating body turning unit 23 is a mechanism for turning the free roller 21 and the driving roller 22.
- the unit moving unit 24 is a mechanism for moving the rotating body turning unit 23 in the substrate transport direction and the substrate width direction.
- the unit moving unit 24 mainly includes an LM guide 25, a base 26, a bracket 27, and a unit moving servo motor 28.
- the base 26 is a member that extends in the substrate conveyance direction, and is fixed to the frame 7.
- the LM guide 25 extends in the substrate transport direction and is attached to the base 26.
- the bracket 27 engages with the LM guide 25 and is movable in the substrate transport direction.
- the bracket 27 further has a portion 27a extending in the substrate width direction.
- the moving servo motor 28 is fixed to the base 26 with a fixture 30.
- a screw shaft 31 is connected to the output shaft of the motor 28, and the screw shaft 31 is screwed into the screw hole of the bracket 27.
- the first rotating body unit 20A and the second rotating body unit 20B which are independently arranged at both ends of the substrate width direction, individually move (L1 direction in FIG. 2).
- the moving distance can be arbitrarily adjusted. Therefore, even if complicated flutter and wrinkles occur in the substrate 1 being conveyed, the rotating body unit 20 can be set at an optimal position for suppressing flutter and wrinkles.
- the unit moving unit 24 moves the rotating body turning unit 23 in the substrate width direction (L2 direction in FIG. 2).
- the unit moving unit 24 further includes an LM guide 29, a screw shaft 45, and a width determining servo motor 46.
- the LM guide 29 extends in the substrate width direction, and is attached to a portion 27 a of the bracket 27 extending in the substrate width direction.
- the width determining servo motor 46 is attached to the bracket 27.
- a screw shaft 45 is connected to the output shaft of the width determining servo motor 46, and the screw shaft 45 is screwed into a lower portion of a bracket 34 (described later) of the rotating body turning portion 23.
- the first rotating body unit 20A and the second rotating body unit 20B which are independently arranged at both ends in the substrate width direction, individually move (L2 direction in FIG. 2).
- the moving distance can be arbitrarily adjusted. Therefore, even if complicated flutter and wrinkles occur on the substrate being conveyed, the rotating body unit 20 can be set at an optimum position for suppressing flutter and wrinkles.
- the movement adjustment in the width direction of the gripping positions at both ends of the base material by the rotating body turning portion 23, that is, the pair of rotating bodies including the free roller 21 and the driving roller 22, is usually about 10 mm. This is indispensable for accurately gripping the uncoated part at both ends, and according to this function, the gripping position can be easily adjusted.
- the width dimension of the base material is often changed. However, it is possible to easily cope with such a change in production condition.
- FIGS. 4 and 5 show the rotating body turning unit 23.
- the rotating body turning unit 23 is This is a structure for turning a free roller 21 as a first rotating body and a slip type driving roller 22 as a second rotating body by a predetermined angle.
- the rotating body turning unit 23 includes a turning servo motor 32, a turning speed reducer 33, an L-shaped bracket 34, a turning member 35, an air cylinder 42, a connecting plate 44, and a spring pressure link mechanism 10. is doing.
- the L-shaped bracket 34 is attached to be engaged with the LM guide 29 and is further screwed into the screw shaft 45.
- a turning speed reducer 33 and a turning servo motor 32 are attached to the L-shaped bracket 34.
- the turning member 35 has a lower portion 35 a fixed to an output shaft (not shown) of the turning speed reducer 33.
- the structure for attaching the free roller 21 to the turning member 35 is constituted by an air cylinder 42, a connecting plate 44, and the spring pressure link mechanism 10.
- the air cylinder 42 is suspended from the upper part 45 b of the turning member 35.
- the connecting plate 44 connects the spring pressure link mechanism 10 to the turning member 35.
- the free roller 21 is rotatable about the rotation shaft 43 with respect to the spring pressure link mechanism 10.
- the structure for attaching the drive roller 22 to the turning member 35 includes a rotation servomotor 36, a rotation speed reducer 37, a bearing 41, and a rotation shaft 39.
- the bearing 41 is attached to the turning member 35 and supports the drive roller 22 so as to be rotatable about the rotation shaft 39.
- the servo motor 36 and the rotational speed reducer 37 are connected to each other, and the rotational speed reducer 37 is fixed to the turning member 35.
- the rotation shaft 39 of the drive roller 22 is connected to the output shaft 38 of the rotation speed reducer 37 by a coupling 40.
- the drive roller 22 is rotated via the rotation speed reducer 37 by the rotation of the rotation servo motor 36.
- both rotating shafts (39, 43) are free in a direction inclined to the downstream side in the conveyance direction of the substrate 1 when viewed from the outside in the substrate width direction with respect to the direction perpendicular to the substrate conveyance direction.
- the roller 21 and the driving roller 22 can turn. That is, as shown in FIG. 6, each pair of the free roller 21 and the driving roller 22 at both ends of the substrate is swung so that the downstream end in the substrate transport direction is located on the outer side in the substrate width direction from the upstream end.
- the maximum deflection angle ( ⁇ 1) is 20 degrees, that is, the rotation axis (39, 43) can actually swing within the range of 0 to 20 degrees.
- the rotation shafts (39, 43) are at a position rotated by ⁇ 1 about the rotation center line O1 with respect to the straight line S1 perpendicular to the substrate transport direction and the straight line S1. It can rotate between the straight line S2.
- the orientations of the free roller 21 and the driving roller 22 can vary between a straight line S4 inclined by ⁇ 1 inward in the substrate width direction with respect to a straight line S3 parallel to the substrate conveyance direction.
- the above-mentioned deflection angle or tilt angle is substantially about 1 or 2 degrees, and a sufficient effect is often obtained. Further, under general coating conditions, if the angle is within 5 degrees, it can be applied to actual operation. However, in rare cases, such as when the weight of the coating liquid to be applied to the substrate is heavy or when there is little friction between the substrate and the pair of rotating bodies, when it is desired to increase the force pulling the substrate outward, the angle By setting the angle between 5 degrees and 20 degrees, sagging and wrinkles of the substrate can be prevented.
- both of the pair of rotating bodies may be free rollers.
- the gripping force with respect to the base material can be adjusted by the vertical movement by the expansion and contraction of the air cylinder 42. Furthermore, after the gripping force is set by the air cylinder 42, the free roller 21 can be moved up and down according to the size of the adhering material or the like on the surfaces of both ends of the base material by the above-described attachment method of the free roller 21 by the spring pressure link method. As described above, it is possible to always maintain a good surface on both ends of the substrate. Depending on the electrode for the secondary battery or fuel cell, there may be a case where an extremely thin and soft substrate is used as the substrate on which double-sided coating is applied. Since the gripping portion of the roller may be damaged or broken, the control of the gripping force by the free roller 21 is very effective.
- Control Configuration The operation control of the rotating body unit 20 in the conveying device 100 for the double-sided coated base material of the present invention is performed by a control panel 51 including various electrical devices and instruments.
- the control panel 51 is provided with a control controller 53, operation switches 55, and a display panel 57, and can operate various electrical devices and instruments.
- the control controller 53 is a computer having memories such as a CPU, a RAM, and a ROM.
- the controller 53 has a memory 53a.
- the controller 53 can display the current state of each device on the display panel 57.
- a detection signal from an encoder 59 that detects the speed of the substrate 1 is input to the controller 53.
- a detection signal from the end position detector 61 is input to the controller 53.
- the end position detector 61 is a laser displacement meter or sensor that can measure the position of each end in the width direction of the substrate 1 on the upstream side or the downstream side in the vicinity of the rotating body unit 20.
- the controller 53 is connected to the first rotating body unit 20A and the second rotating body unit 20B, the moving servo motor 28, the rotating servo motor 36, the air cylinder 42, and the width determining servo motor 46, respectively.
- the controller 53 differs between the first rotating body unit 20A and the second rotating body unit 20B with respect to the moving servo motors 28, the rotating servo motors 36, the air cylinders 42, and the width determining servo motors 46.
- a control signal can be transmitted.
- the controller 53 detects the respective states from the first rotating body unit 20A and the second rotating body unit 20B, the moving servo motor 28, the rotating servo motor 36, the air cylinder 42, and the width determining servo motor 46. The detected signal is transmitted.
- the deflection angle of the rotating body turning unit 23, the rotation speed of the servo motor 36 for rotation, the pressure of the air cylinder 42, etc. are registered in the memory 53a as registration data for each production type, and the data is read out as appropriate. Can be used. Therefore, it is possible to appropriately read and use data of the tilt angle of the rotating body unit 20, the rotation speed of the driving roller 22, and the gripping force of the pair of rotating bodies that sandwich the base material 1, which is optimal for the production type. The work time associated with the change can be reduced.
- the angle of the rotating body turning section 23, the rotation speed of the servo motor 36 for rotation, the pressure of the air cylinder 42, etc. may be changed or finely adjusted during the coating operation. By doing so, even if there is a flutter or wrinkle on the substrate being transported, it can be corrected immediately. As a result, generation of defective products can be prevented.
- the control of the rotation speed of the servo motor 36 for rotation may be performed not only when the rotation speed is controlled per unit time but also by drive torque control.
- the rotational speed of the driving roller 22 of the rotating body unit 20 may be the same on the left and right in the width direction, or may be set differently.
- the inclination angle of the rotator unit 20 may be symmetrical on the left and right in the width direction, or may be asymmetrical on the left and right.
- the set value of the rotation speed of the servo motor for rotation 36 is set to increase by several percent as the swing angle of the rotating body turning section 23 increases. By doing so, the speed component of the drive roller 22 in the transport direction of the base material becomes equal to or higher than the actual transport speed of the base material, and the occurrence of fluttering and wrinkling of the base material can be prevented.
- the controller 53 monitors the signal from the end position detector 61, and when the position of the end portion of the substrate 1 is out of a predetermined range, the inclination angle of the rotating body unit 20 or the driving roller 22 is detected. You may perform automatic control which adjusts rotation speed. By doing so, if the amount of the substrate 1 meandering in the width direction during conveyance is measured, and the inclination angle of the rotating unit 20 and the rotation speed of the drive roller 22 are adjusted, the amount of meandering of the substrate 1 is set to the specified value. Automatic correction control can be performed within the range.
- the double coated substrate transport apparatus 1 includes a front coating die head 3 and a back coating die head 4, a drying furnace 5, a first rotating body unit 20A, and a second rotating body unit 20B.
- the front surface coating die head 3 and the back surface coating die head 4 are devices for applying a coating liquid to both the front and back surfaces of the substrate 1.
- the drying furnace 5 is an apparatus for forming a coating film on both the front and back surfaces of the substrate 1 by drying the coating solution attached to the substrate 1.
- the first rotator unit 20A and the second rotator unit 20B are devices provided independently at both ends in the width direction of the substrate 1 on the downstream side or the upstream side in the transport direction of the back coating die head 4, respectively. is there.
- Each of the first rotating body unit 20A and the second rotating body unit 20B includes a free roller 21 and a driving roller 22 that are a pair of rotating bodies, and a rotating body turning portion 23.
- the free roller 21 and the drive roller 22 grip both ends in the width direction of the substrate 1 from the front and back surfaces.
- the rotating body swivel unit 23 is configured so that the rotation shafts of the free roller 21 and the driving roller 22 are inclined toward the downstream side in the substrate conveyance direction when viewed from the outside in the substrate width direction with respect to the line perpendicular to the substrate conveyance direction.
- the direction of 21 and the driving roller 22 can be individually changed.
- a rotating body unit that grips the base material 1 from the front and back surfaces is provided independently at both ends of the base material 1, and each operation is changed individually.
- Conveyance is stable and a non-defective substrate 1 can be obtained.
- the first rotating body unit 20A and the second rotating body unit 20B are respectively movable devices (25, 26, 27, 28, 30, 31) that move the free roller 21 and the driving roller 22 in the conveying direction of the substrate 1 individually. ).
- the first rotating body unit 20 ⁇ / b> A and the second rotating body unit 20 ⁇ / b> B individually vary the gripping force for gripping the base material 1 from the front surface 8 and the back surface 9 of the base material 1 by the free roller 21 and the driving roller 22.
- An air cylinder 42 is further provided.
- each of the first rotating body unit 20A and the second rotating body unit 20B further includes a rotation servomotor 36 that individually changes the rotation speed of the drive roller 22 in accordance with the substrate conveyance speed.
- the rotating body turning unit 23 can adjust the inclination angle of the free roller 21 and the driving roller 22 with respect to the substrate conveyance direction within a range of 0 to 20 degrees.
- the rotating body unit 20 can be disposed between the backup roller 2 and the back coating die head 4.
- the rotating body unit 20 is placed between the backup roller 2 and the back coating die head 4, and between the back coating die head 4 and the entrance of the drying furnace 5. It can also be arranged in two places in between.
- a plurality of first rotating body units 20A and second rotating body units 20B are arranged in the substrate transport direction, and the rotational speeds of the drive rollers 22 of all the rotating body units or the inclinations of the rotating body units 20 are arranged.
- the angle or gripping force can be set individually. Thereby, the said tension
- tensile_strength can be ensured and a base material conveyance can be performed in a favorable state.
- the servo for rotation is gradually increased from the backup roller 2 portion located upstream in the substrate conveyance direction to the back coating die head 3 and the drying furnace 5 located downstream.
- the rotational speed of the motor 36 may be set. By doing so, an appropriate tensile force acts in the conveyance direction of the base material, and it is possible to prevent the base material from fluttering and wrinkling.
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- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Coating Apparatus (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
- Inert Electrodes (AREA)
Abstract
Description
本発明の一見地に係る両面塗工基材用搬送装置は、表面塗工用ダイヘッド及び裏面塗工用ダイヘッドと、乾燥炉と、第1回転体ユニット及び第2回転体ユニットと備えている。表面塗工用ダイヘッド及び裏面塗工用ダイヘッドは、基材の表裏両面に塗工液を塗工するための装置である。乾燥炉は、基材に付着した塗工液を乾燥することで、基材の表裏両面に塗工膜を形成するための装置である。第1回転体ユニット及び第2回転体ユニットは、裏面塗工用ダイヘッドの搬送方向下流側又は上流側に、基材の幅方向両端部にそれぞれに独立して設けられた装置である。第1回転体ユニット及び第2回転体ユニットは、各々、一対の回転体と、回転体旋回部とを有している。一対の回転体は、基材の幅方向両端部を表裏面から把持する。回転体旋回部は、一対の回転体の回転軸が基材搬送方向に垂直な線に対して基材幅方向外側から見て基材搬送方向下流側に傾くように、一対の回転体の向きをそれぞれ第1回転体ユニットと第2回転体ユニットとで個別で変更できる。
この装置では、両面塗工基材の搬送において、その基材の両端部に表裏面から基材を把持する回転体ユニットをそれぞれ独立して設けて、それぞれの動作を個別に変更することにより、基材の搬送時に生じる基材のバタツキ現象やしわの発生等が確実に減らすことがきると共に、基材への塗工部における塗工厚み斑の併発も減らせる。この結果、基材の搬送が安定し、良品の基材を得ることができる。
以下、図面を参照して本発明の実施形態について説明する。
第1回転体ユニット20Aは、図2及び図3に示されるように、本搬送装置100を構成するフレーム7に設置されている。第1回転体ユニット20Aは、一対の回転体であるフリーローラ21及び駆動ローラ22と、回転体旋回部23と、ユニット駆動部24とを有している。フリーローラ21は、基材1の表面8における基材幅方向両端部の未塗工部分に接する。駆動ローラ22は、基材1の裏面9における基材幅方向両端部の未塗工部分に接する。回転体旋回部23は、フリーローラ21及び駆動ローラ22を旋回させるための機構である。ユニット移動部24は、回転体旋回部23を基材搬送方向及び基材幅方向に移動させるための機構である。
ユニット移動部24において、回転体旋回部23を基材搬送方向に移動させる構造を説明する。ユニット移動部24は、主に、LMガイド25と、ベース26と、ブラケット27と、ユニット移動用サーボモータ28とを有している。ベース26は、基材搬送方向に延びる部材であり、フレーム7に固定されている。LMガイド25は、基材搬送方向に延びており、ベース26に取り付けられている。ブラケット27は、LMガイド25に係合して基材搬送方向に移動可能である。ブラケット27は、さらに、基材幅方向に延びる部分27aを有している。移動用サーボモータ28は、ベース26に取付具30によって固定されている。モータ28の出力軸にはネジ軸31が連結され、ネジ軸31はブラケット27のネジ孔に螺合している。以上の構造により、モータ28が回転すると、ネジ軸31の回転によってブラケット27がLMガイド25に沿って基材搬送方向に移動する。
図4及び図5には、回転体旋回部23が示されている。この回転体旋回部23は、
第1の回転体であるフリーローラ21と第2の回転体であるスリップ式駆動ローラ22を所定角度旋回するための構造である。
以上の構造により、旋回用サーボモータ32が回転すると、旋回部材35が(つまり、回転体旋回部23も)回転する。回転体旋回部23は、鉛直方向に延びた回転中心線O1の回りを回転可能になっている。
駆動ローラ22を旋回部材35に取り付ける構造は、回転用サーボモータ36と、回転用減速機37と、軸受41と、回転軸39とによって構成されている。軸受41は旋回部材35に取り付けられており、駆動ローラ22を回転軸39を中心に回転自在に支持している。
フリーローラ21と駆動ローラ22の旋回の向きを説明する。図6に示すように、両回転軸(39、43)が基材搬送方向に垂直な方向に対して基材幅方向外側から見て基材1の搬送方向の下流側に傾く方向に、フリーローラ21及び駆動ローラ22が旋回可能である。つまり、図6に示すように基材両端のフリーローラ21と駆動ローラ22の各対が、基材搬送方向下流端が上流側端より基材幅方向外側に位置するように、振られる。そして、その最大振れ角度(θ1)は20度であり、つまり実際に回転軸(39,43)が振れることができるのは、0~20度の範囲である。言い換えると、第1回転体ユニット20Aにおいて、回転軸(39,43)は、基材搬送方向に垂直な直線S1と、直線S1に対して回転中心線O1を中心にθ1回動した位置にある直線S2との間で回動可能である。別の表現では、フリーローラ21及び駆動ローラ22の向きは、基材搬送方向に平行な直線S3に対して基材幅方向内側にθ1だけ傾いた直線S4との間で変動することができる。
また、駆動ローラ22の回転速度については、基材1の搬送速度の数%の増速で基材に良好な緊張状態を作り出すことが可能である(例えば、基材搬送速度10m/minで、その1%の増速)。
なお、二次電池や燃料電池用の電極によっては、両面塗工が施される基材に極薄で軟弱なものを用いる場合もあり、そのような場合に、前記把持力が一定では基材の把持部に傷や破断等が生じることがあるのでこのようなフリーローラ21での把持力の制御は非常に有効である。
本発明の両面塗工基材の搬送装置100における回転体ユニット20の動作制御は、種々の電気的な機器や計器等を備えた制御盤51によって行われる。
上記実施形態の特徴は下記のように表現できる。両面塗工基材用搬送装置1は、表面塗工用ダイヘッド3及び裏面塗工用ダイヘッド4と、乾燥炉5と、第1回転体ユニット20A及び第2回転体ユニット20Bと備えている。表面塗工用ダイヘッド3及び裏面塗工用ダイヘッド4は、基材1の表裏両面に塗工液を塗工するための装置である。乾燥炉5は、基材1に付着した塗工液を乾燥することで、基材1の表裏両面に塗工膜を形成するための装置である。第1回転体ユニット20A及び第2回転体ユニット20Bは、裏面塗工用ダイヘッド4の搬送方向下流側又は上流側に、基材1の幅方向両端部にそれぞれに独立して設けられた装置である。第1回転体ユニット20A及び第2回転体ユニット20Bは、各々、一対の回転体であるフリーローラ21及び駆動ローラ22と、回転体旋回部23とを有している。フリーローラ21及び駆動ローラ22は、基材1の幅方向両端部を表裏面から把持する。回転体旋回部23は、フリーローラ21及び駆動ローラ22の回転軸が基材搬送方向に垂直な線に対して基材幅方向外側から見て基材搬送方向下流側に傾くように、フリーローラ21及び駆動ローラ22の向きをそれぞれ個別で変更できる。
この装置では、両面塗工基材1の搬送において、基材1の両端部に表裏面から基材1を把持する回転体ユニットをそれぞれ独立して設けて、それぞれの動作を個別に変更することにより、基材1の搬送時に生じる基材1のバタツキ現象やしわの発生等が確実に防止できると共に、基材1への塗工部における塗工厚み斑の併発も防げるので、基材1の搬送が安定し、良品の基材1を得ることができる。
両面基材の搬送装置における回転体ユニット20の配置についてであるが、基材への両面同時塗工の際、塗工液の膨潤が激しく裏面塗工前に基材の幅方向に緊張を与えることが必要な場合もある。
そのような場合、第2実施形態として、図1Bに示すように、回転体ユニット20をバックアップローラ2と裏面塗工用ダイヘッド4の間に配置することもできる。また、さらに第3実施形態として、図1Cに示すように、回転体ユニット20をバックアップローラ2と裏面塗工用ダイヘッド4の間、及び、裏面塗工用ダイヘッド4と乾燥炉5の入口との間の2箇所に配置することもできる。
そこで、第4実施形態として、第1回転体ユニット20A及び第2回転体ユニット20Bを基材搬送方向に複数配置し、全ての回転体ユニットの駆動ローラ22の回転速度又は回転体ユニット20の傾斜角度又は把持力を個別に設定できる。これにより、前記緊張力が確保でき、良好な状態で基材搬送を行うことができる。
以上、本発明の一実施形態について説明したが、本発明は上記実施形態に限定されるものではなく、発明の要旨を逸脱しない範囲で種々の変更が可能である。特に、本明細書に書かれた複数の実施形態および変形例は必要に応じて任意に組合せ可能である。
2 バックアップローラ
3 表面塗工用ダイヘッド
4 裏面塗工用ダイヘッド
5 乾燥炉
6 ガス噴出ノズル
7 フレーム
8 表面
9 裏面
10 バネ圧リンク機構
20 回転体ユニット
20A 第1回転体ユニット
20B 第2回転体ユニット
21 フリーローラ(回転体)
22 駆動ローラ(回転体)
23 回転体旋回部
24 ユニット移動部
25 LMガイド(移動装置)
26 ベース(移動装置)
27 ブラケット(移動装置)
28 移動用サーボモータ
29 LMガイド(移動装置)
30 取付具
31 ネジ軸
32 旋回用サーボモータ
33 旋回用減速機
34 ブラケット
35 旋回部材
36 回転用サーボモータ(回転速度可変装置)
37 回転用減速機
38 出力軸
39 回転軸
40 カップリング
41 軸受
42 エアーシリンダ(把持力可変装置)
43 回転軸
44 連結板
45 ネジ軸
46 幅決サーボモータ
51 制御盤
53 制御コントローラ
53a メモリ
55 操作スイッチ
57 表示パネル
59 エンコーダ
61 端部位置検出器
100 搬送装置(両面塗工基材用搬送装置)
101 搬送装置
102 搬送装置
Claims (6)
- 基材の表裏両面に塗工液を塗工するための表面塗工用ダイヘッド及び裏面塗工用ダイヘッドと、
前記基材に付着した塗工液を乾燥することで、前記基材の前記表裏両面に塗工膜を形成する乾燥炉と、
前記裏面塗工用ダイヘッドの搬送方向下流側又は上流側に、前記基材の幅方向両端部にそれぞれに独立して設けられた第1回転体ユニット及び第2回転体ユニットとを備え、
前記第1回転体ユニット及び前記第2回転体ユニットは、各々、
前記基材の前記幅方向両端部を前記表裏面から把持する一対の回転体と、
前記一対の回転体の回転軸が基材搬送方向に垂直な線に対して基材幅方向外側から見て基材搬送方向下流側に傾くように、前記一対の回転体の向きを第1回転体ユニットと第2回転体ユニットでそれぞれ個別に変更できる回転体旋回部とを有する
両面塗工基材用搬送装置。 - 前記第1回転体ユニット及び前記第2回転体ユニットは、各々、前記一対の回転体を個別に前記基材の搬送方向に移動させる移動装置をさらに有する、請求項1に記載の両面塗工基材用搬送装置。
- 前記第1回転体ユニット及び前記第2回転体ユニットは、各々、前記基材の前記表裏面から前記一対の回転体によって前記基材を把持している把持力を個別に変更する把持力可変装置をさらに有する、請求項1又は2に記載の両面塗工基材用搬送装置。
- 前記第1回転体ユニット及び前記第2回転体ユニットでは、前記基材の前記表裏面から前記基材を把持している前記一対の回転体の一方を駆動輪として他方を従動輪としており、
前記第1回転体ユニット及び前記第2回転体ユニットは、各々、前記駆動輪の回転速度を基材搬送速度に応じて個別に変更する回転速度可変装置をさらに有する、請求項1~3のいずれかに記載の両面塗工基材用搬送装置。 - 前記回転体旋回部は、基材搬送方向に対する前記一対の回転体の傾斜角度を0~20度の範囲に調整することができる、請求項1~4のいずれかに記載の両面塗工基材用搬送装置。
- 前記第1回転体ユニット及び前記第2回転体ユニットを基材搬送方向に複数配置し、
全ての回転体ユニットの回転速度、傾斜角度又は把持力を個別に設定できる、請求項1~5のいずれかに記載の両面塗工基材用搬送装置。
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| US8946587B2 (en) | 2011-10-19 | 2015-02-03 | Honda Motor Co., Ltd. | Laser machining apparatus |
| CN103056528A (zh) * | 2011-10-19 | 2013-04-24 | 本田技研工业株式会社 | 激光加工装置 |
| WO2013111624A1 (ja) * | 2012-01-26 | 2013-08-01 | 東レエンジニアリング株式会社 | 電極シート材の製造装置 |
| JP2013166639A (ja) * | 2012-02-16 | 2013-08-29 | Hirano Tecseed Co Ltd | ウエブの支持装置 |
| US9486828B2 (en) | 2013-05-24 | 2016-11-08 | Fuji Kikai Kogyo Co., Ltd. | Dual coating system |
| US9604246B2 (en) | 2013-05-24 | 2017-03-28 | Fuji Kikai Kogyo Co., Ltd. | Double-sided coating device |
| JP2014226635A (ja) * | 2013-05-24 | 2014-12-08 | 富士機械工業株式会社 | 両面塗工システム |
| JP2014226634A (ja) * | 2013-05-24 | 2014-12-08 | 富士機械工業株式会社 | 両面塗工システム |
| WO2014188641A1 (ja) * | 2013-05-24 | 2014-11-27 | 富士機械工業株式会社 | 両面塗工システム |
| JP2014226638A (ja) * | 2013-05-24 | 2014-12-08 | 富士機械工業株式会社 | 両面塗工装置 |
| WO2014188671A1 (ja) * | 2013-05-24 | 2014-11-27 | 富士機械工業株式会社 | 両面塗工装置 |
| KR101793808B1 (ko) * | 2013-05-24 | 2017-11-03 | 후지 기카이 고교 가부시키가이샤 | 양면 도공장치 |
| JP2016007599A (ja) * | 2014-06-26 | 2016-01-18 | 東レエンジニアリング株式会社 | 両面塗布装置 |
| JP2017056420A (ja) * | 2015-09-18 | 2017-03-23 | 株式会社Screenホールディングス | 塗工装置 |
| US10933438B2 (en) | 2018-02-01 | 2021-03-02 | Panasonic Intellectual Property Management Co., Ltd. | Coating apparatus with base material height changing device configured to selectively eject compressed gas |
| KR20230021577A (ko) * | 2021-08-05 | 2023-02-14 | 주식회사 엘지에너지솔루션 | 전극 제조용 건조 장치 및 이를 이용한 전극의 제조방법 |
| JP2023543221A (ja) * | 2021-08-05 | 2023-10-13 | エルジー エナジー ソリューション リミテッド | 電極製造用乾燥装置およびそれを利用した電極の製造方法 |
| EP4203088A4 (en) * | 2021-08-05 | 2024-04-03 | LG Energy Solution, Ltd. | DRYING DEVICE FOR PRODUCING AN ELECTRODE AND METHOD FOR PRODUCING AN ELECTRODE THEREOF |
| JP7670421B2 (ja) | 2021-08-05 | 2025-04-30 | エルジー エナジー ソリューション リミテッド | 電極製造用乾燥装置およびそれを利用した電極の製造方法 |
| KR102848076B1 (ko) | 2021-08-05 | 2025-08-20 | 주식회사 엘지에너지솔루션 | 전극 제조용 건조 장치 및 이를 이용한 전극의 제조방법 |
| CN114534955A (zh) * | 2022-01-26 | 2022-05-27 | 江苏隆宝重工科技有限公司 | 一种具有喷涂功能的钢结构用数显端面铣床 |
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| CN114683561B (zh) * | 2022-03-17 | 2023-07-21 | 江苏泛亚橡塑新材料有限公司 | 一种车用粘贴海绵条加工装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20120014081A (ko) | 2012-02-15 |
| CN102470389A (zh) | 2012-05-23 |
| US8875651B2 (en) | 2014-11-04 |
| TW201100179A (en) | 2011-01-01 |
| CN102470389B (zh) | 2014-08-13 |
| JPWO2011001648A1 (ja) | 2012-12-10 |
| US20120103252A1 (en) | 2012-05-03 |
| TWI446974B (zh) | 2014-08-01 |
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