Winding device, spinning device, and strip-shaped body winding method

Abstract

Embodiments of the present invention relate to a winding device, a spinning device, and a strip-like body winding method, which can suppress the problem of a strip-like body being wound in which the edge covering portion of a film covers the edge of a substrate, thereby improving the winding quality of the strip-like body. According to the embodiment, the winding device includes a winding core and an airflow adjustment unit. The winding core winds up a strip-like body having an edge covering portion that covers the edge of a film formed by discharging a raw material liquid onto the surface of the substrate, including the widthwise edge. The airflow adjustment unit includes a nozzle that performs at least one of exhausting and sucking gas, and adjusts the airflow around the edge covering portion of the film of the strip-like body wound on the winding core.

Description

Technical Field

[0001] Embodiments of the present invention relate to a winding device, a spinning device, and a method for winding a strip-shaped object. Background Art

[0002] The manufacturing method of dissolving an organic material in a solvent by electrospinning or the like to discharge the raw material liquid obtained onto the surface of the substrate and forming a film of organic fibers on the surface of the substrate is widely used. For example, in the electrode group of a battery, a separator that insulates the positive electrode from the negative electrode is sometimes formed integrally with the positive electrode or the negative electrode. In this case, a film of organic fibers is formed on the surface of the electrode (positive electrode or negative electrode) formed integrally with the separator by electrospinning or the like, and the formed film becomes a separator. As described above, a strip having a film formed on the surface of the substrate is wound on a winding core.

[0003] For example, when an electrode integrated with a separator is formed into a strip, to prevent short circuits, one side edge of the electrode, serving as the substrate in the width direction, is covered by a film edge covering, which extends outward from the edge of the substrate in the width direction of the strip. When winding such a strip having a film edge covering onto a winding core, it is desirable to suppress adverse effects caused by the film edge covering bending toward the outer periphery of the winding core and folding back inward in the width direction (axial direction) of the strip. Furthermore, it is desirable to suppress the occurrence of such bending and folding back at the film edge covering, thereby suppressing adverse effects caused by localized bulging in and around the film edge covering where the strip is wound onto the winding core. Summary of the Invention

[0004] The problem to be solved by the present invention is to provide a winding device, a spinning device and a strip winding method that can suppress the defect of the strip being wound when the edge of the film covering the edge of the substrate is partially covered, thereby improving the winding quality of the strip.

[0005] According to an embodiment, a winding device includes a winding core and an airflow adjustment unit. The winding core winds a strip having an edge covering portion that covers the edge of a film formed by discharging a raw material liquid onto the surface of a substrate including its widthwise edges. The airflow adjustment unit includes a nozzle that performs at least one of exhausting and suctioning gas, and adjusts the airflow around the edge covering portion of the film strip wound on the winding core.

[0006] According to the winding device, spinning device, and strip-shaped body winding method, it is possible to suppress the problem of the strip-shaped body being wound in which the edge coating portion of the film covers the edge of the substrate, thereby improving the winding quality of the strip-shaped body. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 This is a schematic diagram showing a spinning device according to the first embodiment.

[0008] Figure 2 This is a schematic diagram showing an example of a strip-shaped body wound around a winding core in the winding section of the first embodiment.

[0009] Figure 3 This is a schematic diagram showing the nozzle and the air supply unit in the winding unit of the first embodiment.

[0010] Figure 4 It is a perspective view showing the configuration of a winding core, a nozzle, and their vicinity in the winding section (winding device) according to the first embodiment.

[0011] Figure 5 This is a plan view showing the configuration of a winding core, a nozzle, and their vicinity in the winding section of the first embodiment, as viewed from one side in the lateral direction.

[0012] Figure 6 This is a plan view showing the configuration of a winding core, a nozzle, and their vicinity in the winding section of the first embodiment, as viewed from the side opposite to the side where the strip is fed in the depth direction.

[0013] Figure 7 This is a cross-sectional view showing a portion of the power transmission section in the winding section of the first embodiment, and showing the base shaft, the rotating drum, etc. in a cross section perpendicular or substantially perpendicular to the depth direction.

[0014] Figure 8 It is a perspective view showing a winding core and a nozzle in the winding section and a portion near the nozzle in the power transmission section according to the first embodiment.

[0015] Figure 9 This is a cross-sectional view showing the nozzle in the winding section and the vicinity of the nozzle in the power transmission section of the first embodiment, and showing the connection shaft and the like in a cross section perpendicular or substantially perpendicular to the depth direction.

[0016] Figure 10 This is a schematic diagram showing a nozzle and a suction source in a winding section according to a modified example. DETAILED DESCRIPTION

[0017] Hereinafter, embodiments will be described with reference to the drawings.

[0018] (First embodiment)

[0019] Figure 1 1 is a schematic diagram showing a spinning device 1 according to a first embodiment. Figure 1As shown, the spinning device 1 includes a delivery section 2, a spinning section 3, a take-up section 4 serving as a take-up device, and a transport path P. The transport path P extends from the delivery section 2 to the take-up section 4 and passes through the spinning section 3. In the spinning device 1, the substrate 10 is transported from the delivery section 2 to the take-up section 4 along the transport path P.

[0020] In the conveying path P, the conveying direction in which the substrate 10 is conveyed, that is, the direction toward the take-up section 4, becomes the downstream side. Also, in the conveying path P, the direction opposite to the conveying direction, that is, the direction toward the delivery section 2, becomes the upstream side. In addition, in the conveying path P, a first direction that is a width direction intersecting (orthogonal or substantially orthogonal) with respect to the conveying direction, and a second direction that intersects (orthogonal or substantially orthogonal) with respect to both the conveying direction and the first direction are defined. Figure 1 In FIG, the first direction (width direction) of the transport path P coincides with or substantially coincides with the direction perpendicular to the paper surface.

[0021] Furthermore, one or more guide rollers (not shown) are provided on the transport path P to guide the substrate 10 from the delivery section 2 to the take-up section 4. In this case, in the transport path P, guide rollers are provided on at least one of the sides: between the delivery section 2 and the spinning section 3, and between the spinning section 3 and the take-up section 4. Alternatively, guide rollers may be provided inside the spinning section 3.

[0022] The extension state of the conveying path P from the delivery section 2 to the winding section 4 is not particularly limited. In one example, the conveying path P extends in the horizontal direction, and in another example, the conveying path P extends in the vertical direction. Furthermore, one or more bends or turns of the conveying path P may be provided between the delivery section 2 and the winding section 4, and the extension direction of the conveying path P may be changed in the bends or turns. In one example, a turn of the conveying path P is provided between at least one of the delivery section 2 and the spinning section 3 and between the spinning section 3 and the winding section 4. In another example, a turn of the conveying path P is provided inside the spinning section 3.

[0023] Furthermore, the substrate 10 is defined as having a longitudinal direction, a width direction intersecting (perpendicular or substantially perpendicular) the longitudinal direction, and a thickness direction intersecting (perpendicular or substantially perpendicular) both the longitudinal and width directions. In the substrate 10, the dimension along the width direction (width) is smaller than the dimension along the longitudinal direction, and the dimension along the thickness direction is smaller than the dimension along the width direction.

[0024] The delivery portion 2 includes a delivery core 21. The delivery core 21 is formed of, for example, a reel. The delivery core 21 has a central axis, and the substrate 10 is wound in a roll on the delivery core 21. The direction along the central axis of the delivery core 21 is consistent or approximately consistent with the first direction (width direction) of the conveying path P. The substrate 10 is wound on the delivery core 21 in a state where the width direction of the substrate 10 is consistent or approximately consistent with the direction along the central axis of the delivery core 21 and the length direction of the substrate 10 is along the circumferential direction of the delivery core 21. In the delivery portion 2, the delivery core 21 is rotated in the direction of the arrow R1 by driving a driving component such as a motor (not shown), thereby delivering the substrate 10 to the conveying path P and supplying the substrate 10 to the conveying path P.

[0025] In the conveying path P, the substrate 10 fed from the feeding section 2 is fed toward the winding section 4. The substrate 10 is fed in a state where the width direction of the substrate 10 is aligned or substantially aligned with the first direction (width direction) of the conveying path P, and the thickness direction of the substrate 10 is aligned or substantially aligned with the second direction of the conveying path P. Figure 1 In the drawings, the width direction of the substrate 10 coincides with or substantially coincides with the direction perpendicular to the paper surface.

[0026] The spinning section 3 forms a film 11 of organic fibers on the surface of the substrate 10 transported along the transport path P. Thus, a strip-shaped body 12 including the substrate 10 and the film 11 is formed. The strip-shaped body 12 is also defined in the same manner as the substrate 10 in terms of length, width, and thickness. The spinning section 3 includes one or more spinning heads 31. Figure 1 In one example, six spinning heads 31 are provided in the spinning section 3. Each spinning head 31 includes a head body 32 and a discharge nozzle 33 protruding from the head body. In each spinning head 31, a raw material liquid obtained by dissolving an organic material in a solvent can be stored inside the head body 32.

[0027] In each of the spinning heads 31, the raw material liquid stored in the interior of the head body 32 is discharged from the discharge nozzle 33 toward the substrate 10. The substrate 10 is transported by passing through the side of each of the spinning heads 31 from which the raw material liquid is discharged. One discharge nozzle 33 or a plurality of discharge nozzles 33 may be provided in each of the spinning heads 31. In one example, a plurality of discharge nozzles 33 are provided in each of the spinning heads 31, and a plurality of discharge nozzles 33 are formed in each of the spinning heads 31 in the first direction (relative to the first direction) of the transport path P. Figure 1 A row of nozzles arranged in a direction perpendicular or approximately perpendicular to the paper surface).

[0028] In addition, a power supply (not shown) is provided in the spinning section 3. In one example, the power supply is a DC power supply. The power supply applies a voltage to the spinning head 31 in the spinning section 3, thereby generating a potential difference between the substrate 10 transported in the transport path P and the discharge nozzle 33. Furthermore, the raw material liquid charged by applying a voltage to the discharge nozzle 33 is discharged from the discharge nozzle 33 toward the substrate 10, and the film 11 is formed on the surface of the substrate 10. In addition, the raw material liquid can be charged with a positive polarity or a negative polarity.

[0029] As the organic substance used in the raw material liquid, for example, one or more of polyolefin, polyether, polyimide, polyketone, polysulfone, cellulose, polyvinyl alcohol, polyamide, polyamideimide and polyvinylidene fluoride can be selected. Examples of the polyolefin include polypropylene and polyethylene.

[0030] The voltage between each discharge nozzle 33 of the spinning head 31 and the substrate 10 is appropriately set according to the type of solvent and solute in the raw material liquid, the boiling point and vapor pressure curve of the solvent in the raw material liquid, the concentration and temperature of the raw material liquid, the shape of the discharge nozzle 33, and the distance between the substrate 10 and the discharge nozzle 33. In one example, the voltage (potential difference) applied between each discharge nozzle 33 of the spinning head 31 and the substrate 10 is appropriately set between 1 kV and 100 kV. The discharge rate of the raw material liquid from each discharge nozzle 33 of the spinning head 31 is adjusted to a value corresponding to the concentration, viscosity, and temperature of the raw material liquid, the voltage applied between each discharge nozzle 33 of the spinning head 31 and the substrate 10, and the shape of the discharge nozzle 33.

[0031] As described above, the spinning section 3 of this embodiment forms the film 11 of organic fibers on the surface of the substrate 10 by the electrospinning method (also called charge spinning method and charge induction spinning method, etc.), and forms the strip-shaped body 12 including the substrate 10 and the film 11. Figure 1 In one example, the raw material liquid is discharged onto both sides of the substrate 10. However, in another example, the raw material liquid may be discharged only onto one side of the substrate 10 being transported. In this case, the membrane 11 is formed only on one side of the substrate 10. In another example, the raw material liquid may be charged by applying a voltage to either the source of the raw material liquid supplied to the spinning head 31 or the raw material liquid supply path between the source and the spinning head 31 using the above-mentioned power supply or the like. In this case, the charged raw material liquid is also discharged from the discharge nozzle 33 toward the substrate 10.

[0032] In addition, in a certain example, in the spinning section 3, the transported substrate 10 is arranged on a collector (not shown). And, as described above, the raw material liquid is discharged from the discharge nozzle 33 of the spinning head 31 toward the collector and the substrate 10. As a result, a film 11 of organic fibers is formed on the surface of the substrate 10 arranged on the collector. In this case, even when the substrate 10 has electrical insulation, the film 11 can be formed on the surface of the substrate 10. In addition, in the spinning section 3, the formation of the organic fiber film 11 on the surface of the substrate 10 can also be performed by a method other than the electrospinning method. In a certain example, instead of the electrospinning method, the organic fiber film 11 is formed on the surface of the substrate 10 by any one of the inkjet method, the jet distribution method, and the spraying method. In this case, in the spinning section 3, the raw material liquid obtained by dissolving the organic material in the solvent is also discharged from the spinning head 31 to the surface of the substrate 10.

[0033] The winding section (winding device) 4 includes a winding core 41. The winding core 41 is formed of, for example, a reel. The winding core 41 has a central axis C0, and the strip 12 conveyed through the conveying path P is input to the winding core 41. The direction along the central axis C0 of the winding core 41 is consistent with or approximately consistent with the first direction (width direction) of the conveying path P. In the winding section 4, the winding core 41 is rotated in the direction of arrow R2 by a driving member such as a motor (not shown), whereby the strip 12 input from the conveying path P to the winding core 41 is wound on the outer periphery of the winding core 41. On the winding core 41, the strip 12 is wound into a roll centered on the central axis C0 of the winding core 41. The strip 12 is wound onto the winding core 41 with the width direction of the substrate 10 (strip 12) aligned or approximately aligned with the direction along the central axis C0 of the winding core 41 and the length direction of the substrate 10 (strip 12) along the circumferential direction of the winding core 41.

[0034] Figure 2 FIG. 4 shows an example of the strip-shaped body 12 wound around the winding core 41. Figure 2 In FIG, the strip 12 is represented by a cross section perpendicular or substantially perpendicular to the longitudinal direction. Figure 2 In FIG. 1 , the directions indicated by arrows W1 and W2 are the width directions of the strip 12 (substrate 10), and the directions indicated by arrows T1 and T2 are the thickness directions of the strip 12 (substrate 10). Figure 2 As shown in FIG. , in the strip 12, the substrate 10 has a pair of edges E1 and E2. In the substrate 10, the edge (first edge) E1 is one edge in the width direction, and the edge (second edge) E2 is the edge opposite to the edge E1 in the width direction. Furthermore, in the substrate 10, the edges E1 and E2 form a pair of long edges along the longitudinal direction.

[0035] exist Figure 2 In the strip-shaped body 12 of an example of the above, a film 11 is formed on both sides of the substrate 10, that is, on both sides of a pair of main surfaces of the substrate 10. In addition, in the strip-shaped body 12 wound onto the winding core 41, one side edge E1 of the substrate 10 in the width direction is covered by the film 11. Therefore, the film 11 of the strip-shaped body 12 is formed with an edge covering portion 13 covering the edge E1 of the substrate 10. That is, in the present embodiment, the edge covering portion 13 is a portion covering the edge E1 of the film 11 formed by discharging the raw material liquid from the discharge nozzle 33 to the surface of the substrate 10 including the edge E1 in the width direction. The edge covering portion 13 of the film 11 extends from the edge E1 of the substrate 10 to the outside in the width direction of the strip-shaped body 12 (substrate 10). In addition, in Figure 2 In an example such as , the film 11 is not formed on the edge E2 of the substrate 10 opposite to the edge E1. Therefore, the edge E2 is not covered by the film 11 and is exposed to the outside. Therefore, the strip 12 is fed onto the winding core 41 while the edge E1 of the substrate 10 is covered by the film 11 and the edge E2 of the substrate 10 is not covered by the film 11.

[0036] In one example, in the spinning section 3, the film 11 is formed in a state where the film 11 covers both sides of the edges E1 and E2 of the substrate 10. In this case, a stripping section (not shown) is provided between the spinning section 3 and the winding section 4 in the conveying path P. The stripping section strips off a portion of the film 11 formed by the spinning section 3 from the substrate 10 using, for example, a rotating brush. At this time, the stripping section strips off the film 11 from the substrate 10 at the edge E2 and the vicinity thereof, thereby causing the edge E2 to be not covered by the film 11. However, in the strip-shaped body 12 stripped by the stripping section, the edge E1 and the vicinity thereof also remain covered by the film 11. Furthermore, after a portion of the film 11 is stripped off as described above, the strip-shaped body 12 is input into the winding core 41.

[0037] In another example, the stripping section may not be provided. In this case, the range of the raw material liquid discharged from the spinning head 31 in the spinning section 3 is adjusted so that the raw material liquid is not discharged toward or near the edge E2 of the conveyed substrate 10. Thus, the film 11 is formed on the surface of the substrate 10, with the edge E1 covered by the film 11 and the edge E2 not covered by the film 11.

[0038] In one example, the electrode (positive electrode or negative electrode) becomes the substrate 10, and a separator is formed as a film 11 of organic fibers on the surface of the substrate 10. In this case, the electrode (positive electrode or negative electrode) is formed as a strip 12 and is integrated with the separator. In the respective electrode groups of batteries and capacitors, the positive electrode and the negative electrode are electrically insulated by the separator. In addition, when the substrate 10 is an electrode, the electrode (substrate 10) has a current collector and an active material containing layer carried on the surface of the current collector. Moreover, in the electrode serving as the substrate 10, the current collector and the active material containing layer are formed to one side edge E1 in the width direction. However, in the electrode, at the edge E2 on the opposite side to the edge E1 and its vicinity, the current collector does not carry the active material containing layer. Therefore, in the electrode, the edge E2 is formed by the portion of the current collector that does not carry the active material containing layer. In addition, the substrate 10 is not limited to the electrode.

[0039] like Figure 1 As shown in FIG. 1 , the winding section (winding device) 4 includes an airflow adjustment section 5 for adjusting the airflow near the winding core 41 while the strip 12 is being wound onto the winding core 41. The airflow adjustment section 5 includes a nozzle 51 and an air supply section 50 for supplying air to the nozzle 51. Figure 3 The nozzle 51 and the air supply unit 50 are schematically shown. Figure 3 1 shows a portion of the winding core 41 and shows a position where the strip 12 is fed into the portion where the strip 12 is wound on the winding core 41 and its vicinity. Figure 3 1 shows a cross section perpendicular or substantially perpendicular to the longitudinal direction of the strip 12, and shows a cross section parallel or substantially parallel to the central axis C0 of the winding core 41. Figure 3 As shown in FIG. 5 and FIG. 6 , the gas supply unit 50 is a supply source of gas to the nozzle 51 and includes a gas tank 52, a valve 53, and a regulator 55. The nozzle 51 is connected to the gas supply unit 50 via a gas supply path 56.

[0040] like Figure 1 as well as Figure 3As shown in FIG. 1 , in the present embodiment, the nozzle 51 is an exhaust nozzle that exhausts the gas supplied from the air supply section 50 through the air supply path 56. In the air flow adjustment section 5, gas is exhausted from the nozzle 51 while the strip 12 is being wound onto the winding core 41. The nozzle 51 exhausts gas toward the input position (i.e., the position where the strip 12 is wound onto the winding core 41) and its vicinity where the strip 12 is input to the outer peripheral surface of the portion where the strip 12 is wound onto the winding core 41. Therefore, gas is exhausted from the nozzle 51 toward the portion of the strip 12 immediately before being input to the input position and the portion of the outer peripheral surface of the portion where the strip 12 is wound onto the winding core 41 immediately after being input from the input position. At this time, gas is exhausted from the nozzle 51 toward the edge covering portion 13 of the film 11 covering the edge E1 of the substrate 10 at the input position and its vicinity where the strip 12 is input to the portion wound onto the winding core 41. Therefore, at the input position of the strip 12 to the wound portion and its vicinity, an airflow (arrow F1) is generated from the nozzle 51 toward the edge wrapping portion 13 of the membrane 11, and the airflow around the edge wrapping portion 13 and between the nozzle 51 and the edge wrapping portion 13 of the membrane 11 is adjusted.

[0041] The gas tank 52 stores gas to be supplied to the nozzle 51. The valve 53 is, for example, a throttle valve, and the amount of gas supplied to the nozzle 51 is adjusted by the valve 53. By adjusting the amount of gas supplied to the nozzle 51, the amount of gas discharged from the nozzle 51 is adjusted. In addition, the pressure of the gas supplied to the nozzle 51 is adjusted by the regulator 55. By adjusting the gas pressure to the nozzle 51, the discharge pressure of the gas in the nozzle 51 is adjusted. In addition, by adjusting the discharge amount and discharge pressure of the gas in the nozzle 51, the discharge speed of the gas in the nozzle 51 is adjusted. In the present embodiment, the airflow adjustment unit 5 adjusts the discharge amount, discharge pressure and discharge speed of the gas in the nozzle 51 as described above, thereby adjusting the flow rate, speed and pressure of the airflow from the nozzle 51 toward the edge covering portion 13 of the membrane 11, that is, the airflow between the nozzle 51 and the edge covering portion 13.

[0042] Figures 4 to 6 The winding core 41, the nozzle 51 and the surrounding structures in the winding section (winding device) 4 are shown. Figures 4 to 6 As shown, in the winding section 4, a depth direction (direction indicated by arrows X1 and X2), a lateral direction (direction indicated by arrows Y1 and Y2) intersecting (orthogonal or substantially orthogonal) the depth direction, and a height direction (direction indicated by arrows Z1 and Z2) intersecting (orthogonal or substantially orthogonal) both the depth direction and the lateral direction are defined. The strip 12 is fed into the winding core 41 from one side in the depth direction (arrow X1 side). Here, Figure 4 It's a stereogram. Figure 5 Indicates the state viewed from one side (arrow Y1 side) in the horizontal direction. Figure 6 Indicates the state viewed from the side opposite to the input strip 12 in the depth direction. Figures 4 to 6 In FIG. 1 , the strip 12 is indicated by a dotted line.

[0043] In the winding section 4, the central axis C0 of the winding core 41 is along the horizontal direction. In addition, the strip 12 is wound on the winding core 41 in a state where the width direction of the strip 12 is consistent or substantially consistent with the horizontal direction. Figures 4 to 6 In one example, a guide roller 57 is positioned near the take-up core 41 in the conveying path P. The strip 12 is guided toward the take-up core 41 by the guide roller 57 and fed from the guide roller 57 to the take-up core 41. Specifically, the strip 12 is guided by the guide roller 57 to a position where the outer circumference of the portion of the strip 12 wound onto the take-up core 41 is fed. The guide roller 57 is positioned on the side of the take-up core 41 in the depth direction and on the upper side (arrow Z1 side) of the take-up core 41 in the height direction. The central axis of the guide roller 57 is oriented horizontally and along the width of the strip 12.

[0044] In the take-up section 4, the take-up core 41 is attached to the wall 43. The take-up core 41 is attached to the wall 43 from one lateral side (the side indicated by arrow Y1). The take-up core 41 is rotatable relative to the wall 43 about the central axis C0. The airflow adjustment section 5 adjusts the position and posture of the nozzle 51. The airflow adjustment section 5 includes a contact roller 61 and a power transmission section 60 that transmits power from the contact roller 61 to the nozzle 51. The nozzle 51 is connected to the contact roller 61 with the power transmission section 60 interposed therebetween.

[0045] exist Figures 4 to 6 In one example, the power transmission unit 60 includes a rotating shaft 62, a pair of connecting plates 63, timing pulleys 65 and 68, a timing belt 71, a base shaft 66, a rotating drum 67, an arm plate 72, timing pulleys 73 and 76, a timing belt 77, a connecting shaft 75, and relay plates 81 and 82. The rotating shaft 62 has a central axis C1 that extends horizontally. The rotating shaft 62 is laterally mounted to the wall 43 from the side where the winding core 41 is mounted. The rotating shaft 62 is rotatable relative to the wall 43 about the axis of the central axis C1. Furthermore, the rotating shaft 62 is positioned above the winding core 41 in the height direction.

[0046] A pair of connecting plates 63 are fixed to the rotating shaft 62 and are arranged to be separated from each other in the transverse direction. In addition, the connecting plates 63 are respectively extended from the rotating shaft 62 toward the lower side in the height direction, and are extended from the rotating shaft 62 toward the winding core 41. The connecting plates 63 are respectively formed into a substantially C-shaped curved shape when viewed from the transverse direction. The contact roller 61 is connected to the rotating shaft 62 with the connecting plates 63 therebetween. The contact roller 61 has a center axis C2, and the center axis C2 of the contact roller 61 is along the transverse direction. The contact roller 61 is arranged on the side where the winding core 41 is located relative to the wall portion 43 in the transverse direction. The contact roller 61 can rotate around the axis of the center axis C2 relative to the connecting plate 63. In addition, the contact roller 61 can rotate around the axis of the center axis C1 of the rotating shaft 62 together with the rotating shaft 62 and the connecting plate 63 relative to the wall portion 43. In addition, in Figure 6 Part of each connecting plate 63 and the contact roller 61 are omitted in the figure.

[0047] The contact roller 61 contacts the outer peripheral surface of the portion of the strip 12 wound on the winding core 41 (i.e., the outer peripheral surface of the strip 12 wound on the winding core 41). The contact roller 61 contacts the portion wound on the winding core 41 from the outer peripheral side. Figures 4 to 6 In one example, the timing pulley 65 contacts the outer peripheral surface of the portion wound onto the winding core 41 near the nozzle 51. Furthermore, the timing pulley 65 is fixed to the rotating shaft 62 and is located on the side closer to the wall portion 43 relative to the connecting plate 63 in the lateral direction. The timing pulley 65 is rotatable relative to the wall portion 43, the rotating shaft 62, the contact roller 61, and the like about the central axis C1 of the rotating shaft 62.

[0048] Figure 7 A portion of the power transmission unit 60 is shown, and the base shaft 66 , the rotating cylinder 67 , and the like are shown in a cross section perpendicular or substantially perpendicular to the depth direction. Figure 8 : is a perspective view showing the winding core 41, the nozzle 51, and the portion near the nozzle 51 in the power transmission unit 60. Figure 8 In FIG. 1 , the strip-shaped body 12 is indicated by a dotted line. Figure 9 The nozzle 51 and the portion near the nozzle 51 in the power transmission unit 60 are shown, the connecting shaft 75 and the like are shown in a cross-section perpendicular or approximately perpendicular to the depth direction, and the base shaft 66 and the rotating cylinder 67 and the like are shown as viewed from the side opposite to the input strip 12 in the depth direction.

[0049] like Figures 4 to 9As shown in FIG. 1 , the rotating drum 67 is mounted on the wall portion 43 with the base shaft 66 interposed therebetween. The rotating drum 67 has a central axis C3, which is coaxial or substantially coaxial with the central axis of the base shaft 66. The central axis C3 of the rotating drum 67 extends in the lateral direction, and the rotating drum 67 is mounted on the wall portion 43 from the side where the winding core 41 is mounted. Furthermore, the rotating drum 67 (central axis C3) is positioned in the height direction between the winding core 41 (central axis C0) and the rotating shaft 62 (central axis C1), and in the depth direction, is positioned on the side of the input strip 12 relative to the winding core 41. The rotating drum 67 is rotatable about the central axis C3 relative to the wall portion 43 and the base shaft 66.

[0050] Furthermore, a timing pulley 68 and an arm plate 72 are fixed to the rotating cylinder 67. Therefore, the timing pulley 68 and the arm plate 72 can rotate along with the rotating cylinder 67 and the like about the axis of the central axis C3 of the rotating cylinder 67. The timing pulley 68 is located laterally on the side of the arm plate 72 closer to the wall portion 43. Furthermore, in the power transmission unit 60, a timing belt 71 is wound around the timing pulleys 65 and 68, and the timing pulley 68 is connected to the timing pulley 68 with the timing belt 71 interposed therebetween. Therefore, when the timing pulley 65 rotates about the axis of the central axis C1 of the rotating shaft 62, power is transmitted from the timing pulley 65 to the timing pulley 68, and the timing pulley 68 rotates along with the rotating cylinder 67 and the arm plate 72 about the axis of the central axis C3 of the rotating cylinder 67.

[0051] The arm plate 72 extends from the rotating cylinder 67 in the depth direction toward the side opposite to the input belt 12. Furthermore, in the power transmission unit 60, a connecting shaft 75 is fixed to the arm plate 72. The connecting shaft 75 is located in the depth direction opposite to the input belt 12 side relative to the rotating cylinder 67 (central axis C3). In the power transmission unit 60, the connecting shaft 75 is connected to the nozzle 51 via the timing pulley 76 and the relay plates 81, 82, etc. Therefore, when the arm plate 72 rotates about the axis of the central axis C3 of the rotating cylinder 67, the connecting shaft 75, the timing pulley 76, the relay plates 81, 82, the nozzle 51, etc., rotate together with the arm plate 72 and the like about the axis of the central axis C3 of the rotating cylinder 67.

[0052] Furthermore, in the power transmission unit 60, a timing pulley 73 is fixed to the base shaft 66. The timing pulley 73 is laterally located farther from the wall portion 43 than the timing pulley 68 and the arm plate 72. Even if the rotating cylinder 67 and the arm plate 72 rotate about the central axis C3 of the rotating cylinder 67 as described above, the timing pulley 73 does not rotate along with the rotating cylinder 67. Furthermore, the timing pulley 76 has a central axis C4 that extends laterally. The timing pulley 76 is rotatable about the central axis C4 relative to the arm plate 72 and the connecting shaft 75. Furthermore, the timing pulley 76 (central axis C4) is located on the side opposite to the input belt 12 in the depth direction relative to the rotating cylinder 67 (central axis C3). Furthermore, the timing pulley 76 is attached to the arm plate 72 laterally from the side opposite to the side where the wall portion 43 is located, with the connecting shaft 75 interposed therebetween.

[0053] The timing pulley 76 is connected to the nozzle 51 with the relay plates 81 and 82 interposed therebetween. Furthermore, in the power transmission unit 60, a timing belt 77 is wound around the timing pulleys 73 and 76, and the timing pulley 76 is connected to the timing pulley 73 with the timing belt 77 interposed therebetween. Therefore, when the timing pulley 76 and the nozzle 51 rotate along with the arm plate 72 and the like about the central axis C3 of the rotating cylinder 67, power is transmitted from the timing pulley 73 to the timing pulley 76, causing the timing pulley 76, the relay plates 81 and 82, the nozzle 51, and the like to rotate relative to the connecting shaft 75 and the arm plate 72 and the like about the central axis C4 of the timing pulley 76.

[0054] The relay plate 81 is connected to the timing pulley 76 and has a curved shape that bends at the bend position. The relay plate 81 extends from the connection position to the timing pulley 76 to the bend position, extending in the depth direction toward the input belt 12. Furthermore, the relay plate 81 bends at the bend position toward the side laterally away from the wall portion 43. The relay plate 82 is connected to the portion of the relay plate 81 that bends toward the side laterally away from the wall portion 43. The relay plate 82 is attached to the relay plate 81 from the side opposite to the wall portion 43 in the horizontal direction. The nozzle 51 is attached to the relay plate 82 from the side opposite to the wall portion 43 in the horizontal direction. The nozzle 51 and the relay plate 82 are located between the timing pulley 73 and the timing pulley 76 in the depth direction.

[0055] Here, as the strip 12 is wound onto the winding core 41, the amount of the strip 12 wound onto the winding core 41 increases over time. Therefore, as time passes, the diameter of the portion of the strip 12 wound onto the winding core 41 increases, and the distance from the central axis C0 of the winding core 41 to the outer peripheral surface of the wound portion increases. Furthermore, as the diameter of the portion wound onto the winding core 41 increases, the input position of the strip 12 to the outer peripheral surface of the wound portion changes, and the path of the strip 12 input to the input position also changes. Figures 4 to 6 In one example, as the diameter of the wound portion increases, the position at which the strip 12 is fed into the wound portion changes upward in the height direction (toward the arrow Z1). Consequently, the path of the strip 12 from the guide roller 57 to the position at which the strip 12 is fed into the outer circumference of the wound portion also changes.

[0056] In this embodiment, as the diameter of the portion wound on the winding core 41 increases, the contact roller 61 in contact with the outer peripheral surface of the wound portion moves due to the force from the wound portion, and its radial position relative to the winding core 41 changes. As the contact roller 61 moves (i.e., according to the change in radial position relative to the winding core 41), the rotating shaft 62 and the timing pulley 65, etc., rotate together with the contact roller 61 about the axis of the central axis C1 of the rotating shaft 62 ( Figure 5 Then, the timing pulley 65 rotates around the axis of the central axis C1 of the rotating shaft 62, thereby transmitting power from the timing pulley 65 to the timing pulley 68, and the rotating cylinder 67, the arm plate 72, the timing pulley 76, the relay plates 81, 82 and the nozzle 51 rotate around the axis of the central axis C3 of the rotating cylinder 67 ( Figure 5 Then, the timing pulley 76 and the nozzle 51 rotate together with the arm plate 72 around the axis of the central axis C3 of the rotating cylinder 67, thereby transmitting power from the timing pulley 73 to the timing pulley 76, and the relay plates 81, 82 and the nozzle 51 rotate relative to the arm plate 72 around the axis of the central axis C4 of the timing pulley 76 ( Figure 5 Arrow R5).

[0057] As described above, in this embodiment, even when the diameter of the portion wound onto the winding core 41 increases, the power generated by the movement of the contact roller 61 is transmitted to the nozzle 51 via the power transmission unit 60. The nozzle 51 then moves using the transmitted power, thereby changing its position and posture. Here, as the diameter of the wound portion increases, the position at which the strip 12 is fed into the wound portion and the path of the strip 12 fed into the feed position change as described above. In this embodiment, the contact roller 61 and power transmission unit 60 are provided in the airflow adjustment unit 5. Therefore, the airflow adjustment unit 5 adjusts the position and posture of the nozzle 51 by tracking the changes in the position and path of the strip 12 as the diameter of the wound portion increases. Specifically, the airflow adjustment unit 5 moves the nozzle 51 so that its position and posture track the changes in the position and path of the strip 12 as it is fed into the feed position, thereby adjusting the position and posture of the nozzle 51. As described above, in the present embodiment, the airflow adjustment unit 5 changes the position and posture of the nozzle 51 in accordance with changes in the input position of the strip-shaped body 12 wound onto the winding core 41 .

[0058] Furthermore, the relay plate 82 is mounted so as to be movable in the lateral direction relative to the relay plate 81. The nozzle 51 can be moved in the lateral direction relative to the relay plate 81, etc., together with the relay plate 82. In the airflow adjustment unit 5, the position of the nozzle 51 can be adjusted by moving the nozzle 51 in the lateral direction together with the relay plate 81.

[0059] Furthermore, the nozzle 51 is connected to the relay plate 82 via the ball joint 87. Therefore, the nozzle 51 can rotate relative to the relay plate 82 and other components about the axis of rotation C5 of the ball joint 87. The rotation axis C5 extends horizontally and is located below the center axis C1 of the rotating shaft 62 in the height direction. Furthermore, the rotation axis C5 is located depth-wise between the center axis C3 of the rotating cylinder 67 and the center axis C4 of the timing pulley 76. In the airflow adjustment unit 5, the nozzle 51 can be rotated about the axis of rotation C5 to adjust its posture and other aspects.

[0060] In the airflow adjustment unit 5 of this embodiment, the position and posture of the nozzle 51 are adjusted as described above through adjustments using the contact roller 61 and the power transmission unit 60, adjustments using the movement of the relay plate 82, and adjustments using the ball joint 87. By adjusting the position and posture of the nozzle 51 in the airflow adjustment unit 5, the direction of gas discharge from the nozzle 51 is adjusted. Furthermore, by adjusting the direction of gas discharge from the nozzle 51, the airflow adjustment unit 5 adjusts the direction of airflow from the nozzle 51 toward the edge covering portion 13 of the film 11, that is, the direction of airflow between the nozzle 51 and the edge covering portion 13.

[0061] In addition, a joint block 83 is fixed to the relay plate 81, and a joint block 86 is fixed to the relay plate 82. Furthermore, the joint blocks 83 and 86 are connected by a pipe 85. In addition, a pipe (not shown) extending from the air supply section 50 is connected to the joint block 83. The air supply path 56 that supplies gas from the air supply section 50 to the nozzle 51 is formed from the air supply section 50 to the nozzle 51 through the inside of the pipe, the inside of the joint block 83, the inside of the pipe 85, the inside of the joint block 86, and the inside of the ball joint 87 in sequence. Figures 4 to 9 In one example, two openings 58 are formed in the nozzle 51, and the nozzle 51 discharges the gas supplied through the gas supply path 56 from the openings 58. Therefore, in this embodiment, the openings 58 of the nozzle 51 serve as discharge ports for the discharged gas.

[0062] In this embodiment, as described above, the airflow adjustment unit 5 discharges gas from the nozzle 51 while the strip 12 is being wound onto the winding core 41. The airflow adjustment unit 5 then adjusts the airflow between the nozzle 51 and the edge covering portion 13 of the film 11 while the strip 12 is being wound onto the winding core 41 by discharging gas from the nozzle 51. Thus, during the winding of the strip 12, the airflow between the nozzle 51 and the edge covering portion 13 of the film 11 can be adjusted to a state that suppresses the edge covering portion 13 of the film 11 from bending toward the outer periphery of the winding core 41 and from folding back inward in the width direction of the strip 12 (the axial direction of the winding core 41).

[0063] By suppressing the aforementioned folding and folding in the edge covering portion 13 of the film 11 during winding of the strip 12, it is possible to effectively prevent the folded or bent edge covering portion 13 from being caught between the outer circumference of the portion where the strip 12 is wound and the portion of the strip 12 newly fed into the wound portion. This effectively prevents the occurrence of localized bulging in and around the edge covering portion 13 of the film 11 in the portion where the strip 12 is wound onto the winding core 41. By suppressing the aforementioned localized bulging in the portion where the strip 12 is wound onto the winding core 41, the wound strip 12 is less likely to deform, effectively preventing damage to the strip 12.

[0064] Furthermore, in this embodiment, by adjusting the discharge direction, discharge volume, discharge pressure, and discharge speed of the gas from the nozzle 51 in the airflow adjustment unit 5 as described above, the direction, flow rate, speed, and pressure of the airflow between the nozzle 51 and the edge covering portion 13 are adjusted. By adjusting the direction, flow rate, speed, and pressure of the airflow between the nozzle 51 and the edge covering portion 13, the aforementioned bending and folding at the edge covering portion 13 of the film 11 can be more appropriately suppressed during the winding of the strip 12. Consequently, the aforementioned local bulge at the wound portion of the strip 12 can be more appropriately suppressed.

[0065] Furthermore, in this embodiment, the airflow adjustment unit 5 adjusts the position and posture of the nozzle 51 to track changes in the position and path of the strip 12 being fed to the wound portion as the diameter of the portion wound on the winding core 41 increases. Therefore, even if the position and path of the strip 12 being fed to the wound portion change as described above, gas can be appropriately ejected from the nozzle 51 toward the wound portion and its vicinity. Consequently, even if the position and path of the strip 12 being fed to the wound portion change as the diameter of the portion wound on the winding core 41 increases, the airflow can be appropriately adjusted at the wound portion and its vicinity. Consequently, during the winding of the strip 12, the occurrence of folds and bends at the edge wrap portion 13 of the film 11 can be more appropriately suppressed, and the occurrence of localized bulges at the wound portion of the strip 12 can be more appropriately suppressed.

[0066] Furthermore, in this embodiment, the contact roller 61 contacts the outer circumference of the portion of the strip 12 wound onto the winding core 41 and moves as the diameter of the portion wound onto the winding core 41 increases. Furthermore, the power generated by the movement of the contact roller 61 is transmitted to the nozzle 51 via the power transmission unit 60, thereby causing the position and posture of the nozzle 51 to track changes in the input position of the strip 12 and the path of the strip 12 toward the input position. Therefore, the contact roller 61 and the power transmission unit 60 enable a configuration in which the position and posture of the nozzle 51 are adjusted to track changes in the input position of the strip 12 and the path of the strip 12 toward the input position.

[0067] In addition, as a verification related to the embodiment, gas was discharged from the nozzle 51 toward the edge covering portion 13 of the film 11 during the winding of the strip 12. Then, after the winding of the strip 12 was completed, the height of the local bulge of the edge covering portion 13 and its vicinity was measured in the portion wound on the winding core 41. In the verification, by discharging gas from the nozzle 51 toward the edge covering portion 13 of the film 11, the bulge was suppressed compared to the case where the gas was not discharged toward the edge covering portion 13. In addition, by discharging gas from the nozzle 51 toward the edge covering portion 13 of the film 11, the local bulge of the edge covering portion 13 and its vicinity in the portion wound on the winding core 41 was suppressed to a height to a degree that would not cause damage to the strip 12 (substrate 10).

[0068] (Variation)

[0069] The power transmission unit 60, which transmits the power generated by the movement of the contact roller 61 to the nozzle 51, is not limited to the configuration of the above-described embodiment. In one variation, a parallel link mechanism is provided in place of the timing pulleys 73, 76, and the timing belt 77. The timing pulley 68 is connected to the nozzle 51 with the parallel link mechanism interposed therebetween. Furthermore, in another variation, a parallel link mechanism is provided extending downward in the height direction from the rotation shaft 62. The rotation shaft 62 is connected to the nozzle 51 with the parallel link mechanism interposed therebetween. In this case, the nozzle 51 can rotate along with the rotation shaft 62 about the central axis C1 of the rotation shaft 62. However, in all variations, the power transmission unit 60 transmits the power from the contact roller 61 to the nozzle 51, thereby causing the position and posture of the nozzle 51 to change in accordance with changes in the input position of the strip 12 and the path of the strip 12 toward the input position, as the diameter of the portion wound onto the winding core 41 increases.

[0070] Furthermore, the configuration for adjusting the direction, amount, pressure, and speed of gas discharged from the nozzle 51 is not limited to that of the aforementioned embodiment. The airflow adjustment unit 5 can adjust the direction, amount, pressure, and speed of gas discharged from the nozzle 51 to thereby adjust the direction, amount, speed, and pressure of the airflow between the nozzle 51 and the edge covering portion 13.

[0071] In addition, Figure 10 In a modified example shown, the nozzle 51 performs suction instead of exhausting gas. In this modified example, the air flow adjustment unit 5 includes a suction source unit 90 for causing the nozzle 51 to perform suction instead of the air supply unit 50, and the nozzle 51 becomes a suction nozzle that performs suction. Figure 10 The nozzle 51 and the suction source 90 are schematically shown. Figure 104 shows a portion of the winding core 41, and shows the input position and its vicinity where the strip 12 is input to the portion where the strip 12 is wound on the winding core 41. Figure 10 1 shows a cross section perpendicular or substantially perpendicular to the longitudinal direction of the strip 12, and shows a cross section parallel or substantially parallel to the central axis C0 of the winding core 41. Figure 10 As shown in FIG. 1 and FIG. 2 , the suction source portion 90 includes a suction drive portion 91 and a deposition portion 92 . In this modification, the nozzle 51 is connected to the suction source portion 90 via a suction path 93 .

[0072] Examples of the suction drive unit 91 include a suction pump and a blower. By driving the suction drive unit 91, the nozzle 51 uses the opening 58 as a suction port to suck in gas, etc. The gas, etc., sucked from the nozzle 51 then flows through the suction path 93 toward the suction source unit 90. Furthermore, a filter, etc., is provided in the accumulation unit 92 of the suction source unit 90 to accumulate the powder, etc. sucked in along with the gas. The accumulation unit 92 prevents the powder, etc. from flowing into the suction drive unit 91.

[0073] In the airflow adjustment unit 5 of this modified example, the nozzle 51 performs suction while the strip 12 is being wound onto the winding core 41. The nozzle 51 draws air, etc., near the position where the strip 12 is fed to the outer circumference of the portion where the strip 12 is wound onto the winding core 41. Then, at and near the position where the strip 12 is fed to the portion where the strip 12 is wound onto the winding core 41, suction is applied from the edge-coated portion 13 of the film 11 covering the edge E1 of the substrate 10 toward the nozzle 51. Therefore, at and near the position where the strip 12 is fed to the portion where the strip 12 is wound, an airflow (arrow F2) is generated from the edge-coated portion 13 of the film 11 toward the nozzle 51, and the airflow between the nozzle 51 and the edge-coated portion 13 of the film 11 is adjusted.

[0074] Furthermore, in this variation, the amount, pressure, and speed of gas suctioned into the nozzle 51 are adjusted by adjusting the driving state of the suction drive unit 91. Furthermore, the direction of gas suctioned into the nozzle 51 is adjusted by adjusting the position and posture of the nozzle 51, as in the aforementioned embodiment. In this variation, the airflow adjustment unit 5 adjusts the direction, amount, pressure, and speed of gas suctioned into the nozzle 51 as described above, thereby adjusting the direction, flow rate, speed, and pressure of the airflow from the edge-coated portion 13 of the film 11 toward the nozzle 51, that is, the airflow between the nozzle 51 and the edge-coated portion 13.

[0075] In this modified example, the airflow adjustment unit 5 adjusts the airflow between the nozzle 51 and the edge covering portion 13 of the film 11 during the winding of the strip 12 onto the winding core 41 through suction from the nozzle 51. Thus, even during the winding of the strip 12, the airflow between the nozzle 51 and the edge covering portion 13 of the film 11 can be adjusted to prevent the edge covering portion 13 of the film 11 from bending toward the outer periphery of the winding core 41 or from folding back inward in the width direction (axial direction) of the strip 12. Consequently, this modified example can also prevent the occurrence of localized bulging of the edge covering portion 13 of the film 11 and its vicinity at the portion where the strip 12 is wound onto the winding core 41.

[0076] Furthermore, in this variation, a contact roller 61 and a power transmission unit 60 can also be provided, similar to the above-described embodiment. In this case, as in the above-described embodiment, the airflow adjustment unit 5 changes the position and posture of the nozzle 51 to track changes in the input position and path of the strip 12 to the input position as the diameter of the portion wound on the take-up core 41 increases. Therefore, even if the input position and path of the strip 12 to the wound portion change as described above, the nozzle 51 can still appropriately perform suction of the strip 12 at and near the input position. Therefore, even if the input position and path of the strip 12 to the wound portion change as the diameter of the portion wound on the take-up core 41 increases, the airflow can still be appropriately adjusted at and near the input position of the strip 12 to the wound portion.

[0077] Furthermore, in a certain modification, the nozzle 51 may also perform both the discharge and suction of gas. In this case, the airflow adjustment unit 5 adjusts the airflow between the nozzle 51 and the edge-covered portion 13 of the film 11 in the strip 12 wound onto the winding core 41 by discharging and suctioning the gas from the nozzle 51. Furthermore, the number of nozzles 51 is not limited to one, and in a certain modification, a plurality of nozzles 51 may be provided. In this case, one nozzle 51 may adjust the airflow between the nozzle 51 and the edge-covered portion 13 of the film 11 by discharging gas, while another nozzle 51 may adjust the airflow between the nozzle 51 and the edge-covered portion 13 of the film 11 by suction. In these modified examples, even during the winding of the strip 12, the airflow between the nozzle 51 and the edge-covered portion 13 of the film 11 can be adjusted to a state that suppresses the edge-covered portion 13 of the film 11 from bending toward the outer circumference of the winding core 41 or from folding back inward in the width direction of the strip 12 (the axial direction of the winding core 41). Thus, the same functions and effects as those of the above-described embodiment can be achieved.

[0078] Furthermore, in the above-described embodiments, an electrode integrated with a spacer is cited as an example as the strip 12, but the strip 12 is not limited to this embodiment. In a certain variation of the strip 12, the edges E1 and E2 on either side of the substrate 10 in the width direction are each covered by the film 11. Thus, the film 11 of the strip 12 is formed with an edge-covering portion 13 covering the edge E1 of the substrate 10 and an edge-covering portion 13 covering the edge E2 of the substrate 10. In this variation, the airflow between the nozzle 51 and the edge-covering portion 13 of the film 11 is adjusted, similar to the above-described embodiments, by at least one of exhausting gas from the nozzle 51 and suctioning through the nozzle 51. Therefore, this variation also achieves the same functions and effects as the above-described embodiments. Therefore, in the strip 12, it is sufficient that at least one of the edges E1 and E2 on either side of the substrate 10 in the width direction is covered by the edge-covering portion 13 of the film 11.

[0079] According to at least one of these embodiments or examples, a nozzle is provided for at least one of exhausting and sucking gas, thereby adjusting the airflow around the edge-covered portion of the film of the strip wound on the winding core. This provides a winding device, a spinning device, and a strip-winding method that can prevent the strip from being wound in such a way that the edge-covered portion of the film overlaps the edge of the substrate, thereby improving the winding quality of the strip.

[0080] While several embodiments of the present invention have been described, these embodiments are provided as examples and are not intended to limit the scope of the invention. These novel embodiments may be implemented in various other ways, and various omissions, substitutions, and modifications may be made without departing from the gist of the invention. These embodiments and their variations are intended to be included within the scope and gist of the invention, and are intended to be included within the invention set forth in the claims and their equivalents.

Claims

1. A winding device comprising: a winding core for winding a strip-shaped body having an edge covering portion, wherein the edge covering portion is formed by discharging a raw material liquid on a surface of a substrate including edges in a width direction and covers the edges; and An air flow adjustment unit includes a nozzle for performing at least one of exhausting and sucking gas, and adjusts the air flow around the edge covering portion of the film of the strip-shaped body wound onto the winding core. The strip-shaped body is fed at the feeding position onto the outer peripheral surface of the portion where the strip-shaped body is wound around the winding core. The nozzle of the air flow adjustment unit discharges the gas toward the input position of the strip and its vicinity, and / or sucks the gas near the input position of the strip. The airflow adjustment unit includes: a contact roller in contact with the outer peripheral surface of the portion of the strip-shaped body wound around the winding core; and The power transmission unit changes the position and posture of the nozzle according to the radial position of the touch roller relative to the winding core.

2. The winding device according to claim 1, wherein: The airflow adjustment unit adjusts one or more of a direction, a flow rate, a speed, and a pressure of the airflow between the nozzle and the edge covering portion of the film.

3. The winding device according to claim 1, wherein: The airflow adjustment unit changes the position and posture of the nozzle according to a change in a position at which the strip-shaped body is fed to the outer peripheral surface of the portion wound around the winding core.

4. A spinning device comprising: The winding device according to any one of claims 1 to 3; and The spinning head discharges the raw material liquid toward the substrate, thereby forming the film on the surface of the substrate, and forming the strip-shaped body that is wound onto the winding core of the winding device.

5. A spinning method for winding a strip having an edge covering portion, wherein the edge covering portion is formed by discharging a raw material liquid onto a surface of a substrate including edges in a width direction and covering the edges, the spinning method comprising: Winding the strip onto a winding core; as well as When the strip is wound onto the winding core, the air flow around the edge covering portion of the film is adjusted by at least one of exhausting gas from a nozzle and sucking through a nozzle. During the winding of the strip-shaped body, the strip-shaped body is fed at a feeding position onto the outer peripheral surface of the portion where the strip-shaped body is wound around the winding core. In the adjustment of the air flow, the nozzle discharges the gas toward the input position of the strip and its vicinity, and / or sucks the gas near the input position of the strip, The above airflow adjustment utilizes: a contact roller in contact with the outer peripheral surface of the portion of the strip-shaped body wound around the winding core; and The power transmission unit changes the position and posture of the nozzle according to the radial position of the touch roller relative to the winding core.

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