Winding device and winding system

Abstract

To provide a winding device that does not require folding of a foil material when obtaining a wound body. [Solution] The winding device has a cylindrical or cylindrical shaft portion that rotates around a predetermined central axis and has an outer peripheral surface around which the supplied foil material is wound, and a first magnet that is provided on or inside the outer peripheral surface of the shaft portion and exerts a magnetic force on the foil material, adhering it to the outer peripheral surface.

Description

[Technical Field]

[0001] The present invention relates to a winding device and a winding system. [Background technology]

[0002] The tip of a foil material such as a corrugated sheet or a flat sheet is bent, and the tip is hooked onto a groove or the like on the outer surface of a cylindrical or columnar shaft, and the shaft is rotated to wind the foil material and obtain a wound body. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2008-229695 Summary of the Invention [Problem to be solved by the invention]

[0004] In a wound body using, for example, a corrugated foil, the peaks of the corrugated foil may or may not overlap. This tends to result in uneven outer diameters for each wound body. It has also been found that when the foil is wound by bending the tip of the foil and hooking it around the outer periphery of the shaft, the outer periphery of the folded portion of the foil tends to bulge.

[0005] An object of the present invention is to provide a winding device that does not require folding of a foil material when obtaining a wound body, and a winding system that includes the winding device. [Means for solving the problem]

[0006] A winding device according to one embodiment of the present invention comprises a cylindrical or cylindrical shaft portion that rotates around a predetermined central axis and has an outer peripheral surface around which supplied foil material is wound, and a first magnet that is provided on or inside the outer peripheral surface of the shaft portion and exerts a magnetic force on the foil material, causing it to adhere to the outer peripheral surface. A second magnet is provided on or inside the outer peripheral surface of the shaft portion, spaced apart from the first magnet in the circumferential direction of the outer peripheral surface of the shaft portion, and exerts a magnetic force on the foil material, attaching the foil material to the outer peripheral surface. The angle between the first magnet and the second magnet is greater than 0° and within 90° of the central axis. [Effects of the Invention]

[0007] According to the present invention, it is possible to provide a winding device that does not require folding of a foil material when obtaining a wound body, and a winding system that includes the winding device. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a schematic diagram illustrating a winding system according to an embodiment. [Figure 2] FIG. 2 is a schematic block diagram of the winding system shown in FIG. 1. [Figure 3] FIG. 3 is a diagram showing an operation flow when a supplied foil material is wound using the winding system shown in FIGS. 1 and 2. [Figure 4] Schematic diagram showing the winding system when the leading edge of the foil material is in the origin position. [Figure 5] (A) is a schematic diagram showing the positional relationship between the winding device, movable base, and winding presser when the tip of the foil material is at the origin position, and (B) is a schematic diagram viewed from the direction indicated by arrow 5B in (A). [Figure 6] 1 is a schematic diagram of a winding system showing the leading edge of the foil material advanced from the origin position onto the base member of the movable base. [Figure 7] (A) is a schematic diagram showing the positional relationship between the winding device, the movable base, and the winding presser when the tip of the foil material has been advanced from the origin position onto the base member of the movable base, and (B) is a schematic diagram viewed from the direction indicated by arrow 7B in (A). [Figure 8] (A) is a schematic diagram showing the positional relationship of the winding device, movable base, and winding presser when the shaft is rotated from the position shown in Figure 7(A) to attach the tip of the foil material to the first magnet, and (B) is a schematic diagram viewed from the direction indicated by arrow 8B in (A). [Figure 9] 8(A) is a schematic diagram showing the positional relationship between the winding device, the movable base, and the winding presser when the rod-shaped member of the winding presser is extended downward from the position shown in FIG. 8(A), and FIG. 8(B) is a schematic diagram viewed from the direction indicated by arrow 9B in FIG. [Figure 10](A) is a schematic diagram showing the relative positions of the winding device, movable base, and winding presser when the shaft is rotated from the position shown in Figure 9(A) to attach the foil material to the first magnet and then to the second magnet, and (B) is a schematic diagram viewed from the direction indicated by arrow 10B in (A). [Figure 11] (A) is a schematic diagram showing the positional relationship between the winding device, the movable base, and the winding presser when the base member of the movable base is retracted from the position shown in Figure 10(A) toward the outer surface of the shaft portion, and (B) is a schematic diagram viewed from the direction indicated by arrow 11B in (A). [Figure 12] 11(A) is a schematic diagram showing the positional relationship of the winding device, the movable base, and the winding presser when the shaft is rotated from the position shown in FIG. 11(A) to wind the foil material onto the outer peripheral surface of the shaft, and FIG. 11(B) is a schematic diagram viewed from the direction indicated by arrow 12B in FIG. 11(A). [Figure 13] 10 is a schematic diagram showing the winding system in a state immediately after the corrugation number of the foil material has been fed by a predetermined number and the rotation of the corrugated sheet feed gear and shaft portion has been stopped. FIG. [Figure 14] 14 is a schematic diagram showing the winding system in a state where, after the corrugated sheet reaches the state shown in FIG. 13, the shaft portion is rotated to suppress deflection of the foil material, and the foil material is cut by the cutter. FIG. [Figure 15] (A) is a schematic diagram showing the relative positions of the winding device, movable base, and winding presser immediately after the foil material has been cut with a cutter, and (B) is a schematic diagram viewed from the direction indicated by arrow 15B in (A). [Figure 16] 15(A) is a schematic diagram showing the positional relationship of the winding device, the movable base, and the winding presser when the shaft portion is rotated from the position shown in FIG. 15(A) and the foil material has been wound onto the outer peripheral surface of the shaft portion, and FIG. 15(B) is a schematic diagram viewed from the direction indicated by arrow 16B in FIG. 15(A). [Figure 17] 16(A) is a schematic diagram showing the positional relationship between the winding device, the movable base, and the winding presser when the roller is retracted upward from the position shown in FIG. 16(A), and FIG. 16(B) is a schematic diagram viewed from the direction indicated by arrow 17B in FIG. 16(A). [Figure 18]17(A) is a schematic diagram showing the positional relationship of the winding device, the movable base, and the winding presser when the discharge plate is moved along the central axis of the shaft portion from the position shown in FIG. 17(A), and FIG. 17(B) is a schematic diagram viewed from the direction indicated by arrow 18B in FIG. 17(A). [Figure 19] (A) is a schematic diagram showing the positional relationship of the winding device, movable base, and winding presser when the tip of the foil material is at the origin position, and (B) is a schematic diagram viewed from the direction indicated by arrow 19B in (A). DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0010] An embodiment of the winding system 10 will be described with reference to Figures 1 to 18. Here, an example will be mainly described in which a corrugated plate (a plate formed into a generally sinusoidal shape with a predetermined pitch and a predetermined amplitude) is wound as the foil material 5, but it may also be used to wind a flat plate formed from the foil material 5. Note that the foil material 5 used in the winding system 10 according to this embodiment may or may not have through holes (air passages) formed therein as appropriate. When through holes are formed, the magnetic force of magnets 34 and 36, which will be described later, is more likely to extend to the outer periphery of the wound body 1.

[0011] In this embodiment, a metal material that sticks to a magnet is used as the foil material 5. Ferritic stainless steel, martensitic stainless steel, or the like is used as the foil material 5. The thickness of the foil material 5 is, for example, from about several tens of μm to several mm or less.

[0012] FIG. 1 shows a schematic diagram of a winding system 10. An XYZ Cartesian coordinate system is shown in FIG. 1. The +X axis direction is the direction in which the foil material 5 to be wound is transported along the transport surface 52 of the transport unit 16. The +Y axis direction is along the depth direction, which is perpendicular to the plane of the paper in FIG. 1. The +Z axis direction is the direction toward the top of FIG. 1. The origin O of the XYZ Cartesian coordinate system is taken at the position where the foil material 5 is cut by the cutter 20.

[0013] FIG. 2 shows a schematic block diagram of the winding system 10 shown in FIG.

[0014] As shown in FIG. 1, the winding system 10 includes a winding device 12, a movable base 14, a conveying unit 16, a first sensor 18, a cutter 20, a second sensor 22, a winding presser 24, a control unit 26 (see FIG. 2), and a storage box 28.

[0015] The winding device 12 includes a housing 30, a shaft portion (winding roller) 32, a first magnet 34, a second magnet 36, and a discharge plate (pusher) 38.

[0016] The housing 30 forms the frame of the winding device 12. The housing 30 is provided with a shaft portion 32, a first magnet 34, and a second magnet 36.

[0017] The shaft portion 32 is supported relative to the housing 30 so as to be rotatable about a predetermined central axis C. The shaft portion 32 is rotatable about the predetermined central axis C and is formed in a columnar (cylindrical barrel) or cylindrical (cylindrical barrel) shape having an outer peripheral surface around which the supplied foil material 5 is wound. The predetermined central axis C is provided parallel to the Y axis. The length of the shaft portion 32 in the Y axis direction may be greater or smaller than the width of the conveying surface 52 in the Y axis direction.

[0018] 2 has a first driving source (actuator) 32a provided on the shaft portion 32. The first driving source 32a is a motor or the like that rotates the shaft portion 32 around a predetermined central axis C. The torque or rotation speed of the first driving source 32a is controlled by the control unit 26, for example.

[0019] The first magnet 34 shown in FIG. 1 is provided on the outer circumferential surface of the shaft portion 32 or its inner side. The first magnet 34 is illustrated as having a rectangular shape when viewed from the Y-axis direction, but various shapes are acceptable. The first magnet 34 exerts a magnetic force on the foil material 5, attaching the foil material 5 to the outer circumferential surface of the shaft portion 32. When the foil material 5 is a corrugated sheet, the magnetic force of the first magnet 34 is preferably formed to act to pull the foil material 5 at the outermost periphery of the wound body 1 toward the outer circumferential surface of the shaft portion 32.

[0020] The second magnet 36 is disposed on or inside the outer circumferential surface of the shaft portion 32, spaced apart from the first magnet 34 in the circumferential direction of the outer circumferential surface of the shaft portion 32. The second magnet 36 is illustrated as having a rectangular shape when viewed from the Y-axis direction, but various shapes are acceptable. The first magnet 34 and the second magnet 36 are preferably disposed at an angle greater than 0° and less than 90° with respect to the predetermined central axis C. The second magnet 36 exerts a magnetic force on the foil material 5, attaching the foil material 5 to the outer circumferential surface. When the foil material 5 is a corrugated sheet, the magnetic force of the second magnet 36 is preferably configured to pull the outermost foil material 5 of the wound body 1 toward the outer circumferential surface of the shaft portion 32.

[0021] Although permanent magnets are preferably used for the first magnet 34 and the second magnet 36, electromagnets may also be used. When electromagnets are used, the control unit 26 may control the on / off of the magnetic forces of the first magnet 34 and the second magnet 36.

[0022] In addition, the magnetic forces of the first magnet 34 and the second magnet 36 are set based on the material of the foil material 5 constituting the wound body 1, the pitch and amplitude of the waves of the corrugated sheet, the expected outer diameter of the wound body 1, the ejection property of the wound body 1 from the shaft portion 32, etc.

[0023] The first magnet 34 and the second magnet 36 are arranged so as to be located at the center in the width direction of the foil material 5 being transported. In this embodiment, it is assumed that the foil material 5 passes through the center in the width direction of the transport surface 52 of the transport section 16. It is also assumed that the foil material 5 passes through the center in the width direction of the shaft section 32. In this case, the first magnet 34 and the second magnet 36 are arranged at a position that is the center or approximately the center in the width direction (Y-axis direction) of the foil material 5 wound around the outer peripheral surface of the shaft section 32.

[0024] When the foil material 5 being conveyed is positioned offset toward one end in the width direction of the conveying surface 52 of the conveying section 16, the first magnet 34 and the second magnet 36 are positioned at a position offset toward one end, rather than at the center or approximately the center between one end and the other end of the shaft section 32. Even in this case, the first magnet 34 and the second magnet 36 are positioned so as to be located at the center of the foil material 5 in the width direction relative to the foil material 5 being conveyed.

[0025] In this way, the first magnet 34 and the second magnet 36 are provided on the outer peripheral surface of the shaft portion 32 or on the inside thereof so that there is no bias or the bias is minimized when the foil material 5 is wound. For this reason, the first magnet 34 and the second magnet 36 are arranged on the shaft portion 32 so as to exert a magnetic force on the center in the width direction of the foil material 5, or they may be arranged at equal intervals along the width direction of the foil material 5 so that the magnetic force is exerted without bias in the width direction of the foil material 5.

[0026] The first magnet 34 and the second magnet 36 may each be used singly or in combination. The first magnet 34 and the second magnet 36 may each be stacked along the radial direction of the shaft portion 32, for example. When multiple first magnets 34 and second magnets 36 are arranged in the Y-axis direction, it is preferable that the gap between the magnets is located at the center of the foil material 5. For this reason, it is preferable that the first magnet 34 is arranged along the axial direction of the shaft portion 32 so as to exert a magnetic force symmetrically in the width direction with respect to the center of the width direction of the foil material 5. It is also preferable that the second magnet 36 is arranged along the axial direction of the shaft portion 32 so as to exert a magnetic force symmetrically in the width direction with respect to the center of the width direction of the foil material 5.

[0027] Discharge plate 38 has an annular portion 39 as a through hole through which the outer circumferential surface of shaft portion 32 is inserted. Discharge plate 38 is disposed at one end of the outer circumferential surface of shaft portion 32 in the Y-axis direction when producing wound body 1, and can move wound body 1 along the outer circumferential surface of shaft portion 32 to the other end. Note that annular portion 39 of discharge plate 38 moves so as not to come into contact with first magnet 34 and second magnet 36.

[0028] In order to discharge the wound body 1 of corrugated sheet 5 stuck to the magnets 34, 36, it is necessary to make the clearance between the annular portion 39 of the discharge plate 38 and the outer circumferential surface of the shaft portion 32 as small as possible so as not to damage the corrugated sheet 5 during discharge. For example, assume that the minimum height of the corrugated sheet 5 is 1.25 mm. In this case, it is preferable that the hole diameter of the annular portion 39 of the discharge plate 38 is 61.2 mm while the outer diameter of the shaft portion 32 is 60 mm. In this case, the discharge plate 38 can be in contact with the corrugated sheet 5 for approximately half the height of the corrugated sheet 5.

[0029] Furthermore, since the clearance between the annular portion 39 of the discharge plate 38 and the outer peripheral surface of the shaft portion 32 is small, it is necessary to design the discharge plate 38 so that it does not come off the shaft portion 32 when the discharge plate 38 is positioned at the forward end (see Figure 18 (B)).

[0030] Furthermore, parts of the first presser 72 and the second presser 74 are positioned to interfere with the discharge plate 38 if the discharge plate 38 is to be moved relative to the shaft 32. However, parts of the first presser 72 and the second presser 74 move relative to the discharge plate 38 so as not to interfere with each other. This is controlled by, for example, the control unit 26.

[0031] 2 has a second drive source (actuator) 38a provided on the discharge plate 38. The second drive source 38a may be an air cylinder or a linear actuator (electric cylinder) using a motor and a ball screw that move the discharge plate 38 in the Y-axis direction parallel to a predetermined central axis C. The second drive source 38a is controlled by the control unit 26.

[0032] Therefore, the discharge plate 38 moves from one end of the shaft 32 in the Y-axis direction to the other end each time the wound body 1 is produced, and pushes the wound body 1 toward the other end of the shaft 32.

[0033] In this embodiment, the discharge plate 38 is moved by the second drive source 38a, but the discharge plate 38 may be moved manually along the Y-axis direction.

[0034] The movable base 14 is movable horizontally along a tangential direction to the outer peripheral surface of the shaft portion 32, and can move toward and away from the outer peripheral surface of the shaft portion 32. When the movable base 14 approaches the outer peripheral surface of the shaft portion 32, it guides the foil material 5 to the outer peripheral surface of the shaft portion 32.

[0035] The movable base 14 has a base member (plate-shaped member) 42 that moves horizontally and has a flat surface that guides the foil material 5, a third drive source (actuator) 44 that enables the base member 42 to move toward and away from the outer peripheral surface of the shaft portion 32, and a connecting member 46.

[0036] A material that exhibits a magnetic shielding effect is used for the base member 42. A soft magnetic material or a non-magnetic material is preferably used for the base member 42. An example of the material for the base member 42 is stainless steel.

[0037] The third drive source 44 is controlled by the control unit 26. For example, an air cylinder is used as the third drive source 44. A double-acting air cylinder 44 is preferably used. A cylinder portion 44a of the air cylinder 44 is fixed, for example, to a housing 50 (described later) of the conveying unit 16, and a rod portion 44b is preferably extendable in a predetermined direction relative to the cylinder portion 44a. The rod portion 44b is connected to the base member 42 via a connecting member 46. Therefore, extension and contraction of the rod portion 44b of the air cylinder 44 allows the base member 42, which is fixed to the rod portion 44b, to move between predetermined positions relative to the outer circumferential surface of the shaft portion 32. Furthermore, the base member 42 moves relative to the discharge plate 38 so as not to interfere with each other. This is controlled, for example, by the control unit 26.

[0038] When the base member 42 moves from the position indicated by the solid line in Fig. 1 (see Fig. 5) to the position furthest to the +X-axis direction (the position indicated by the dashed line in Fig. 1), an end (downstream end) 42a of the base member 42 is positioned above (in the +Z-axis direction) the first magnet 34 shown in Figs. 5 and 6. The base member 42 is made of a material that prevents the magnetic force of the first magnet 34 from acting on the foil material 5 that is guided onto the outer circumferential surface of the shaft portion 32 through the base member 42.

[0039] The smaller the height (Z-axis direction) clearance between the upper surface of base member 42 of movable base 14 and the outer circumferential surface of shaft portion 32, the better. Depending on the strength of movable base 14, a clearance of about 1 mm, for example, is preferable.

[0040] The conveying unit 16 conveys the foil material 5 in a predetermined direction. More specifically, the conveying unit 16 feeds the foil material 5 onto the outer peripheral surface of the shaft portion 32 of the winding device 12. The conveying unit 16 includes a housing 50, a conveying surface 52, and a corrugated sheet feed gear 54 that feeds the foil material 5 from the upstream side to the downstream side along the conveying surface 52.

[0041] The housing 50 is provided with a conveying surface 52 and a corrugated plate feed gear 54 .

[0042] The conveying surface 52 may be a simple flat surface, or various types such as rollers or belts may be used. The conveying surface 52 is preferably formed as a horizontal surface that conveys the foil material 5 horizontally. The length of the conveying surface 52 in the depth direction (Y-axis direction) is formed to be greater than the width of the foil material 5 in the width direction. The smaller the clearance between the conveying surface 52 and the guide surface (upper surface) of the base member 42 of the movable base 14, the better. In this embodiment, the conveying surface 52 is positioned, for example, about 8 mm to 10 mm higher than the guide surface (upper surface) of the base member 42 of the movable base 14.

[0043] Note that the downstream end 52a of the conveying surface 52 is located downstream (on the +X-axis direction) of the upstream end 42b of the base member 42, regardless of the position of the base member 42 of the movable base 14 within the movable range. Therefore, the downstream end 52a of the conveying surface 52 is located between the downstream end 42a and the upstream end 42b of the base member 42 along the X-axis direction.

[0044] The corrugated sheet feed gear 54 does not move relative to the conveying surface 52, but rotates in place around a rotation axis parallel to the predetermined central axis C of the shaft portion 32. A gap is provided between the conveying surface 52 and the lower end of the corrugated sheet feed gear 54, allowing the corrugated sheet as the foil material 5 to fit therein. The size of the gap depends on the pitch, amplitude, etc. of the corrugated sheet as the foil material 5. The corrugated sheet feed gear 54 is preferably used in the same manner as a spur gear (pinion gear), and the corrugated sheet 5 is preferably used in the same manner as a straight rack. Therefore, the relationship between the corrugated sheet as the foil material 5 and the corrugated sheet feed gear 54 is similar to that of a rack and pinion. Therefore, by rotating in the predetermined direction in place, the corrugated sheet feed gear 54 comes into contact with the surface of the corrugated sheet as the foil material 5, and the corrugated sheet as the foil material 5 can be moved from the upstream side to the downstream side along the conveying surface 52.

[0045] The length of each corrugated sheet feed gear 54 in the depth direction (Y-axis direction) may be longer or shorter than the width of the foil material 5, or may be approximately the same. The corrugated sheet feed gears 54 may be formed so that multiple corrugated sheet feed gears 54 are appropriately spaced apart with a width in the depth direction that is smaller than the width of the foil material 5 and move in conjunction with each other. In this embodiment, the length of the corrugated sheet feed gear 54 in the depth direction is longer than the width of the foil material 5.

[0046] The winding system 10 shown in FIG. 2 is provided in a housing 50 and has a fourth drive source (actuator) 56 that rotates the corrugated sheet feed gear 54. The rotation speed of the third drive source 56 is controlled, for example, by the control unit 26. The third drive source 56 is a motor or the like. The third drive source 56 is used as a wave crest number counter that counts the number of wave crests of the corrugated sheet 5, which corresponds to the number of rotations of the corrugated sheet feed gear 54. When winding a corrugated sheet as the foil material 5, the corrugated sheet 5 can be wound with a predetermined wave number.

[0047] The feed speed of the corrugated sheet 5 by the corrugated sheet feed gear 54 is greater than the winding speed of the corrugated sheet 5 on the shaft 32. That is, the control unit 26 controls the drive sources 32a and 56 so that the feed speed at which the foil material 5 is fed onto the outer peripheral surface of the shaft 32 is greater than the winding speed of the foil material 5 on the shaft 32. This prevents the pitch between the wave crests of the corrugated sheet 5 from increasing.

[0048] A first sensor 18 is provided on the conveying surface 52 of the conveying unit 16. The first sensor 18 is provided upstream of the cutter 20 in the conveying unit 16. The first sensor 18 is a touch sensor having a contact surface that detects contact with the foil material 5. The contact surface of the touch sensor 18 may be flush with the conveying surface 52, but preferably protrudes slightly in the +Z-axis direction, for example, by approximately 0.5 mm. The touch sensor 18 is controlled by the control unit 26 to detect contact and separation of the foil material 5 with the conveying surface 52 of the conveying unit 16. The touch sensor 18 may be positioned so as to detect contact of the foil material 5 at the center position in the width direction of the foil material 5. In this embodiment, since the foil material 5 is a corrugated sheet, multiple touch sensors 18 (here, two) are positioned spaced apart in the X-axis direction. This distance is preferably set so that one of the lower apexes of the corrugated sheet 5 contacts both of the touch sensors 18.

[0049] The first sensor 18 may be, for example, a photoelectric sensor fixed to the conveying surface 52 or in the vicinity thereof in the housing 50. In this case, the photoelectric sensor 18 emits laser light, for example, in the Y-axis direction, and can detect whether the top of the corrugated sheet (foil material) 5 conveyed in the X-axis direction is in contact with or separated from the conveying surface 52.

[0050] The first sensor 18 may detect the approach and separation of the foil material 5 to and from the conveying unit 16. In other words, the first sensor 18 does not necessarily have to detect the contact of the foil material 5 with the conveying surface 52 on the conveying unit 16, but may detect whether the foil material 5 is closer to the conveying surface 52 on the conveying unit 16 than a predetermined distance, or whether the foil material 5 is farther away from the conveying surface 52 on the conveying unit 16 than a predetermined distance.

[0051] The cutter 20 is provided in the conveying unit 16 downstream of the touch sensor 18 along the flow direction of the foil material 5. In this embodiment, the cutter 20 is provided above the conveying surface 52 of the conveying unit 16 (above the conveying unit 16). Therefore, the cutter 20 is provided above the conveying unit 16. The length of the cutter 20 in the depth direction (Y-axis direction) is formed to be greater than the width of the foil material 5 and greater than the length of the conveying surface 52 in the depth direction (Y-axis direction). The cutter 20 is used, for example, as a movable circular blade. The cutter 20 is used, for example, together with a receiving portion (fixed blade) 20a fixed to the housing 50. The receiving portion 20a extends along the conveying surface 50 in the Y-axis direction. The circular blade 20 does not interfere with the movement of the foil material 5 in the X-axis direction and is always waiting on the front or rear side of the foil material 5 in the Y-axis direction. When the circular blade 20 moves in the Y-axis direction, the foil 5 is cut between the receiving portion (fixed blade) 20a.

[0052] The cutter 20 may be formed as a so-called guillotine cutter having a blade that is larger than the width of the foil material 5 in the width direction and extends continuously in the Y-axis direction, and the blade that moves in the Z-axis direction may be capable of cutting the foil material 5. A laser cutter may also be used as the cutter 20. When a laser cutter is used as the cutter 20, the receiving portion 20a may not be necessary.

[0053] The cut ends (leading end, trailing end) of the foil material 5 are formed, for example, straight in the width direction.

[0054] The winding system 10 shown in Fig. 2 is provided in a housing 50 and has a fifth drive source (actuator) 62 that moves the cutter 20. The fifth drive source 62 may be an air cylinder that moves the cutter 20 along the Y-axis direction, or a linear actuator (electric cylinder) that uses a motor, a ball screw, or the like. The fifth drive source 62 is controlled by the control unit 26. The fifth drive source 62 may move the cutter 20 in the Z-axis direction depending on the cutting method of the cutter 20.

[0055] 1, in this embodiment, the position at which the cutter 20 cuts the foil material 5 is set to be the origin position O of the winding system 10. After the sensor 18 detects that the foil material 5 is closer to or in contact with the conveying surface 52 on the conveying unit 16 than a predetermined distance, the cutter 20 is controlled by the control unit 26 to cut the foil material 5 at the origin position O.

[0056] It is preferable that the position of the conveying surface 52 downstream (+X axis direction) of the origin position O is located, for example, about 0.5 mm lower than the position upstream (-X axis direction) of the origin O.

[0057] A second sensor 22 that detects a rear end (cut end) 5c of the foil material 5 is provided downstream of the conveying unit 16 and above the cutter 20 in the flow direction of the foil material 5. The second sensor 22 can detect, for example, the presence of the foil material 5 between the downstream end 52a of the conveying surface 52 of the conveying unit 16 and the outer circumferential surface of the shaft 32. The second sensor 22 is preferably provided above the base member 42 of the movable base 14. The second sensor 22 is controlled by the control unit 26 to detect the rear end of the foil material 5 on the conveying surface 52 of the conveying unit 16 that has been cut by the cutter 20. The second sensor 22 is provided, for example, in the housing 30.

[0058] The second sensor 22 is preferably an optical sensor, for example, and may detect not only the rear end 5c of the foil material 5 (see FIG. 16(A)) but also the front end 5a of the foil material 5 (see FIG. 7(A)). As an example, the second sensor 22 may detect the presence or absence of the foil material 5 directly below the second sensor 22 (in the -Z axis direction). The second sensor 22 may also detect the presence or absence of the foil material 5 at or near the downstream end 52a of the conveying surface 52, for example. In this embodiment, the second sensor 22 detects that the rear end 5c of the foil material 5 passes directly below the second sensor 22.

[0059] The winding presser 24 is provided, for example, on the housing 30. The winding presser 24 faces the outer peripheral surface of the shaft portion 32 and is movable in a direction toward and away from the predetermined central axis C of the shaft portion 32. In this embodiment, the winding presser 24 is provided above the shaft portion 32. When the winding presser 24 is moved in a direction toward the predetermined central axis C of the shaft portion 32, it presses the foil material 5 of the wound body 1 toward the outer peripheral surface of the shaft portion 32.

[0060] In this embodiment, the winding presser foot 24 has a first presser foot 72 and a second presser foot 74. The first presser foot 72 is preferably provided directly above the predetermined central axis C of the shaft portion 32. The second presser foot 74 is provided on the movable base 14 side, upstream of the first presser foot 72 in the movement direction of the foil material 5 (negative X-axis direction side).

[0061] The first presser 72 has a sixth drive source (actuator) 82 and a roller 84.

[0062] An air cylinder, for example, is used as the sixth drive source 82. The air cylinder 82 has a cylinder portion 82a and a rod-shaped member 82b that is movable relative to the cylinder portion 82a in directions toward and away from a predetermined central axis C of the shaft portion 32. The cylinder portion 82a is preferably located in a fixed position relative to the winding device 12. The rod-shaped member 82b is preferably movable along the Z-axis direction.

[0063] It is preferable to use an air cylinder 82 that has a low downward thrust for the roller 84. For this reason, the rod-shaped member 82b is one that can easily move upward so as to escape from the wound body 1 and enter the cylinder 82a when the wound body 1 comes into contact with the roller 84 supported by the rod-shaped member 82b.

[0064] It is also preferable to use an air cylinder 82 that can withstand moment loads that may be received from the wound body 1, etc. For this reason, the rod-shaped member 82b used is one that is prevented from swinging in the X-axis direction and the Y-axis direction around the protruding portion of the rod-shaped member 82b at the lower end of the cylinder portion 82a as a fulcrum, even if the wound body 1 comes into contact with the roller 84 supported by the rod-shaped member 82b.

[0065] The roller 84 is provided on the rod-shaped member 82b and faces the outer circumferential surface of the shaft portion 32. It is more preferable that the roller 84 is supported on the lower end of the rod-shaped member 82b. The roller 84 has a rotation axis that is preferably parallel to the predetermined central axis C of the shaft portion 32. Therefore, as the foil material 5 is wound around the wound body 1, the roller 84, which is in contact with the wound body 1, rotates. At this time, the roller 84 rotates in the opposite direction to the rotation direction of the outer circumferential surface around the predetermined central axis C of the shaft portion 32.

[0066] The rod-shaped member 82b follows the contact between the foil material 5 and the roller 84, moving the roller 84 toward and away from the outer circumferential surface of the shaft portion 32. Therefore, the wound body 1 is wound without a large gravitational load in the direction from the outer circumferential surface of the wound body 1 toward the central axis of the wound body 1 (the predetermined central axis C of the shaft portion 32).

[0067] The second presser 74 has a seventh drive source (actuator) 92 and a presser member 94.

[0068] An air cylinder, for example, is used as the seventh drive source 92. The air cylinder 92 has a cylinder portion 92a and a rod-shaped member 92b that is movable relative to the cylinder portion 92a in directions toward and away from the outer circumferential surface of the shaft portion 32 below the cylinder portion 92a. The cylinder portion 92a is preferably located in a fixed position relative to the winding device 12. The rod-shaped member 92b is preferably movable along the Z-axis direction.

[0069] It is preferable to use an air cylinder 92 that can withstand moment loads that may be received from the wound body 1, etc. For this reason, the rod-shaped member 92b is one that is prevented from swinging in the X-axis direction and the Y-axis direction around the protruding portion of the rod-shaped member 92b at the lower end of the cylinder portion 92a as a fulcrum, even if the wound body 1 comes into contact with the pressing member 94 supported by the rod-shaped member 92b.

[0070] The rod-shaped member 92b of the air cylinder 92 may have a downward thrust force similar to that of the rod-shaped member 82b of the air cylinder 82, or may have a downward thrust force greater than that of the rod-shaped member 82b of the air cylinder 82.

[0071] The holding member 94 is provided at the lower end of the rod-shaped member 92b. The holding member 94 guides the foil material 5 between the base member 42 of the movable base 14 and the base member 42 of the movable base 14 at a position where the base member 42 of the movable base 14 is spaced apart from the outer circumferential surface of the shaft portion 32. In this embodiment, the holding member 94 preferably extends in the Y-axis direction to a length equal to or greater than the width of the foil material 5, or to approximately the same length as the entire length of the shaft portion 32 along the Y-axis direction. On the other hand, the length of the holding member 94 in the Y-axis direction is preferably longer than the width of the conveying surface 52 in the Y-axis direction. A protrusion (not shown) extending in the -X-axis direction may be formed near the center of the width of the holding member 94. Providing the protrusion prevents the trailing end 5c of the foil material from lifting after cutting, allowing the sensor 22 to reliably detect the trailing end 5c of the foil material.

[0072] It is desirable that the height of the lower surface of the pressing member 94 when it is lowered be slightly higher than the amplitude height of the corrugated sheet 5. The height of the lower surface of the pressing member 94 when it is lowered is approximately 2 mm higher than the upper surface of the conveying surface 52.

[0073] The control unit 26 is configured, for example, by a computer or the like, and includes a processor (processing circuit) and a storage medium. The processor includes any of a CPU (Central Processing Unit), ASIC (Application Specific Integrated Circuit), microcomputer, FPGA (Field Programmable Gate Array), and DSP (Digital Signal Processor). The storage medium may include a main storage device such as a memory, as well as an auxiliary storage device. Examples of storage media include a hard disk drive (HDD), a solid state drive (SSD), a magnetic disk, an optical disk (CD-ROM, CD-R, DVD, etc.), a magneto-optical disk (MO, etc.), and a non-volatile memory such as a semiconductor memory that can be written to and read from at any time.

[0074] The control unit 26 may be provided with only one processor and one storage medium, or may be provided with multiple processors and one storage medium. The processor in the control unit 26 performs processing by executing a program stored in a storage medium or the like. The program executed by the processor in the control unit 26 may be stored in a computer (server) connected to the control unit 26 via a network such as the Internet, or in a server in a cloud environment. In this case, the processor downloads the program via the network.

[0075] In the control unit 26, the control of each of the drive sources 32a, 38a, 44, 56, 62, 82, and 92 is executed by a processor or the like, and the storage medium functions as a data storage unit.

[0076] Furthermore, at least a portion of the processing by the control unit 26 may be executed by a cloud server configured in a cloud environment. The infrastructure of the cloud environment is configured by a virtual processor such as a virtual CPU and a cloud memory. In one example, the control of each of the drive sources 32a, 38a, 44, 56, 62, 82, and 92 is executed by the virtual processor, and the cloud memory functions as a data storage unit.

[0077] The storage box 28 is provided on the front side along the axial direction of the central axis C of the shaft portion 32. The storage box 28 is used to store the wound body 1 wound by the winding device 12 and then transport it.

[0078] An example of a series of operations of the winding system 10 according to this embodiment will be described below with reference to FIGS.

[0079] FIG. 3 shows a flow of a series of operations of the winding system 10 according to this embodiment.

[0080] 4 to 18 schematically show a series of operations of the winding system 10 according to this embodiment.

[0081] 5, 7 to 12, and 15 to 18 are schematic diagrams showing the positional relationship between the winding device 12, the base member 42 of the movable base 14, and the roller 84 and presser member 94 of the winding presser 24, as viewed from the direction shown in the figures, and appropriate members such as the conveying section 16, and the sixth drive source 82 and seventh drive source 92 of the winding presser 24 are not shown.

[0082] Note that Fig. 5(A) is a schematic view seen from the direction indicated by arrow 5A in Fig. 5(B). Similarly, Fig. 7(A), Fig. 8(A), Fig. 9(A), Fig. 10(A), Fig. 11(A), Fig. 12(A), Fig. 15(A), Fig. 16(A), Fig. 17(A), and Fig. 18(A) are schematic views seen from the direction indicated by arrow A in (B) of each figure.

[0083] [Origin position (Step S1)] As shown in FIG. 4, the tip of the foil material (corrugated sheet) 5 is located at the origin O (the cutting position by the cutter 20). At this time, the rod portion 44b is retracted relative to the cylinder portion 44a, and as shown in FIGS. 5(A) and 5(B), the downstream end 42a of the base member 42 of the movable base 14 is retracted and separated from the outer peripheral surface of the shaft portion 32. The first magnet 34 is located above the central axis C of the shaft portion 32 and upstream of the predetermined central axis C of the shaft portion 32 along the X-axis direction (-X-axis direction). This position is defined as the initial position of the first magnet 34. The second magnet 36 is located, for example, below the central axis C of the shaft portion 32 and upstream of the predetermined central axis C of the shaft portion 32 along the X-axis direction (-X-axis direction). The second magnet 36 may be located, for example, above the central axis C of the shaft portion 32 or at the same height.

[0084] [Corrugated plate advance (Step S2)] When control unit 26 receives an operation start command and detects that foil material 5 has come into contact with first sensor 18 (see FIG. 4), it drives third drive source 44 of movable base 14 to extend rod portion 44b relative to cylinder portion 44a. As shown in FIGS. 6, 7(A), and 7(B), downstream end 42a of base member 42 of movable base 14 advances toward and approaches the outer circumferential surface of shaft portion 32, and control unit 26 drives third drive source 56 to rotate corrugated sheet feed gear 54 in a predetermined direction to guide foil material 5 from the upstream side to the downstream side, and positions leading end 5a of foil material 5 on the outer circumferential surface of shaft portion 32 through conveying surface 52 and base member 42.

[0085] When the base member 42 of the movable base 14 and the foil material 5 are moved simultaneously by the corrugated sheet feed gear 54, the base member 42 of the movable base 14 approaches the outer peripheral surface of the shaft part 32 before the foil material 5 reaches the outer peripheral surface of the shaft part 32.

[0086] Because base member 44 of movable base 14 is located approximately 8 mm to 10 mm lower than conveying surface 52, foil material 5 is easily transferred from conveying surface 52 to base member 44 of movable base 14. In addition, because the outer peripheral surface of shaft portion 32 is located approximately 1 mm lower than base member 44 of movable base 14, foil material 5 is easily transferred from base member 44 of movable base 14 to the outer peripheral surface of shaft portion 32.

[0087] When the downstream end 42a of the base member 42 moves furthest toward the +X-axis direction, the end (downstream end) 42a of the base member 42 is positioned above (in the +Z-axis direction) the first magnet 34 shown in FIGS. 5 and 6. When the base member 42 is viewed from above, the first magnet 34 is hidden by the base member 42 and cannot be seen. As described above, the base member 42 is made of a material that exhibits a magnetic shielding effect, and therefore the magnetic force of the first magnet 34 is prevented from reaching the upper side of the base member 42 by the base member 42. Therefore, the tip 5a of the foil material 5 passes over the base member 42 of the movable base 14 without being affected by the magnetic force of the first magnet 34, and reaches the outer circumferential surface of the shaft portion 32.

[0088] [Corrugated sheet winding operation (Step S3)] The control unit 26 controls the first drive source 32a to rotate the shaft 32 about a predetermined central axis C from the position shown in Fig. 7 to the position shown in Fig. 8, thereby moving the first magnet 34 downstream in the +X-axis direction from the downstream end 42a of the base member 42. To this end, the shaft 32 is rotated to a position where the base member 42 is not positioned between the first magnet 34 and the foil material (corrugated sheet) 5 (step S31). The rotation angle at this time is, for example, within 45° with respect to the initial position of the first magnet 34 (see Fig. 7).

[0089] At this time, the tip portion 5b of the foil material 5 is attracted by the magnetic force of the first magnet 34, and the tip portion 5b of the foil material 5 sticks to the first magnet 34 and the outer peripheral surface of the shaft portion 32.

[0090] In this manner, with the tip portion 5b of the foil material 5 attached to the outer peripheral surface of the shaft portion 32, as shown in Figure 9, the sixth drive source 82 of the first presser foot 72 of the winding presser foot 24 is driven to extend the rod-shaped member 82b downward, and the seventh drive source 92 of the second presser foot 74 is driven to extend the rod-shaped member 92b downward (step S32).

[0091] At this time, the gap between the lower end of roller 84 of first presser foot 72 of winding presser foot 24 and the outer peripheral surface of shaft 32 is set to be smaller than the amplitude height of corrugated sheet 5. In this embodiment, it is set to be about 1 mm. Roller 84 is connected to sixth drive source (actuator) 82, and presses down on foil material 5 with an appropriate low thrust. Therefore, even if foil material (corrugated sheet) 5 comes into contact with roller 84 supported by the lower end of rod-shaped member 82b, the top of foil material (corrugated sheet) 5 is prevented from being crushed.

[0092] Furthermore, the presser member 94 of the second presser foot 74 of the winding presser foot 24 is set so that the calculated gap between it and the foil material (corrugated sheet) 5 is approximately 0.1 mm to 1 mm. This prevents the top of the foil material (corrugated sheet) 5 from being crushed by the impact of the presser member 94 when it descends. Furthermore, because the gap is small, it prevents bending of the corrugated sheet 5 from occurring between the presser member 94 and the roller 84.

[0093] 10, the control unit 26 controls the fourth drive source 56 to rotate the corrugated sheet feed gear 54 while feeding the foil material (corrugated sheet) 5 downstream, and also controls the first drive source 32a to rotate the shaft portion 32 by approximately 90° relative to the position shown in FIG. 9 (step S33). As a result, the foil material 5 also adheres to the second magnet 36 at a position rearward of the tip end 5b of the foil material 5 to which the first magnet 34 is attached. Therefore, the second magnet 36 adheres to the foil material 5, following the first magnet 34.

[0094] Immediately after the foil material 5 is attached to the first magnet 34 and the second magnet 36 in this manner, as shown in FIG. 11 , the control unit 26 controls the third drive source 44 to retract the rod portion 44b relative to the cylinder portion 44a, moving the base member 42 in the −X-axis direction upstream of the foil material 5 and separating it from the outer circumferential surface of the shaft portion 32 (step S34). Therefore, the control unit 26 positions the base member 42 of the movable base 14 at a position spaced apart from the outer circumferential surface of the shaft portion 32. At this time, the control unit 26 controls the third drive source 44 of the movable base 14 to separate the downstream end 42a of the base member 42 of the movable base 14 from the outer circumferential surface of the shaft portion 32 by at least the thickness of the foil material 5. When the foil material 5 is a corrugated sheet, the downstream end 42a of the base member 42 of the movable base 14 is separated from the outer circumferential surface of the shaft portion 32 by at least twice the amplitude of the corrugated sheet 5. The presser member 94 of the winding presser 24 guides the foil material between itself and the base member 42 of the movable base 14 at a position where the base member 42 of the movable base 14 is spaced from the outer circumferential surface of the shaft portion 32 .

[0095] [Winding (Step S4)] Thereafter, the control unit 26 controls the third drive source 56 of the corrugated sheet feed gear 54 to feed the foil material 5 toward the outer peripheral surface of the shaft portion 32, and controls the first drive source 32a of the shaft portion 32 to wind up the foil material 5 around the outer peripheral surface of the shaft portion 32.

[0096] 12, the foil material (corrugated sheet) 5 is wound around the outer peripheral surface of the shaft portion 32, and the foil material 5 is overlapped radially outward around the outer peripheral surface of the shaft portion 32. Therefore, when the foil material (corrugated sheet) 5 is wound, the roller 84 comes into contact with the foil material 5. When the foil material (corrugated sheet) 5 comes into contact with the roller 84, the rod-shaped member 82b supporting the roller 84 moves upward.

[0097] When the corrugated sheet is wound as the foil material 5, the pitch between the peaks is the same, but the overlapping pattern can be random. For this reason, in the wound body 1, for example, the convex portions of the corrugated sheet 5 overlap, or the concave portions face the convex portions.

[0098] 11 and 12, when the foil material 5 is further piled up on the outside of the outer circumferential surface of the shaft portion 32, the roller 84 moves up further.

[0099] Then, when the count of the number of waves of the foil material (corrugated sheet) 5 sent by the corrugated sheet feed gear 54 shown in Figure 13 reaches a predetermined number, the control unit 26 stops the rotation of the corrugated sheet feed gear 54 and the shaft portion 32.

[0100] [Cutting operation (Step S5)] The feed speed of the foil material (corrugated sheet) 5 by the corrugated sheet feed gear 54 is faster than the winding speed of the foil material 5 by the outer circumferential surface of the shaft portion 32. Therefore, when the rotation of the corrugated sheet feed gear 54 and the shaft portion 32 is stopped, the foil material 5 is deflected in the area surrounded by the dashed line indicated by the symbol R in FIG. 13, and the foil material 5 between the pressing member 94 and the corrugated sheet feed gear 54 rises above the conveying surface 52. When the first sensor 18 detects that the foil material 5 has separated from the first sensor 18, the control portion 26 drives the first drive source 32a of the shaft member 32, and the foil material 5 is wound up around the outer circumferential surface of the shaft member 32. When the control unit 26 detects that the first sensor 18 on the conveying surface 52 has come closer to or in contact with the first sensor 18 than a predetermined distance, the control unit 26 stops driving the first drive source 32a of the shaft 32 and drives the fifth drive source 62, causing the cutter 20 to move in the Y-axis direction from the front or rear side of the foil material 5 in the Y-axis direction, as shown in FIG. 14 , to cut the foil material 5. If, for example, a guillotine blade is used as the cutter 20, the foil material 5 may be cut by lowering the blade of the cutter 20 toward the foil material 5. When the control unit 26 detects that the first sensor 18 has come closer to or in contact with the first sensor 18 than a predetermined distance, the control unit 26 determines that the deflection of the foil material 5 has been resolved.

[0101] When a movable circular blade is used as the cutter 20, the control unit 26 causes the cutter 20 to wait at the front or rear side in the Y-axis direction of the foil material 5. When, for example, a guillotine blade is used as the cutter 20, the control unit 26 controls the fifth drive source 62 to immediately raise the cutter 20 relative to the conveying surface 52 after the cutter 20 has cut the foil material 5. At this time, the winding device 12 shown in FIG. 15 maintains the same position as the winding device 12 shown in FIG. 12.

[0102] [Winding (Step S6)] 16, the control unit 26 drives the first drive source 32a to rotate the shaft 32. When the second sensor 22 detects the rear end 5c of the foil material 5, the control unit 26 stops the rotation of the shaft 32. At this time, the winding of the foil material 5 by the winding device 12 is completed, and the wound body 1 is produced. The rear end 5c of the foil material 5 may be located on the base member 42, for example.

[0103] [Winding pressure roller (roller 84) rises (step S7)] 17, in this state, the control unit 26 controls the sixth drive source (actuator) 82 of the first presser 72 to raise the roller 84 supported on the lower end of the rod-shaped member 82b. As a result, the roller 84 moves upward away from the wound body 1. Meanwhile, the presser member 94 is in contact with the vicinity of the rear end of the foil material 5. Therefore, the shape of the wound body 1 is maintained even when the roller 84 moves away.

[0104] [Discharge plate advance (Step S8)] The control unit 26 controls the second drive source 38a of the discharge plate 38 to move the discharge plate 38 from the position shown in FIG. 17 to the position shown in FIG.

[0105] Discharge plate 38 removes wound body 1 that has been attached to the outer circumferential surface of shaft portion 32 by magnets 34, 36. Control unit 26 operates second drive source 38a of discharge plate 38, moving it from one end of shaft portion 32 in the Y-axis direction to the other end each time a wound body 1 is produced, and pushing out wound body 1 to the other end of shaft portion 32.

[0106] When the magnets 34, 36 are disposed only at the center of the shaft 32 in the width direction, moving the wound body 1, i.e., the foil material 5, in a predetermined direction from the shaft 32 during removal in this manner eliminates the influence of the magnets 34, 36 on the wound body 1. However, because the pressing member 94 extends to the end of the shaft 32, the wound body 1 can maintain its wound shape.

[0107] The wound body 1 is placed, for example, in a storage box 28 adjacent to the shaft portion 32 in the axial direction. The wound body 1 stored in the storage box 28 is then transported.

[0108] Thereafter, the control unit 26 controls the second driving source 38a to return the discharge plate 38 to its original position, and controls the seventh driving source (actuator) 92 of the second presser 74 to raise the presser member 94 supported on the lower end of the rod-shaped member 92b. At this time, the control unit 26 may control the first driving source 32a of the shaft 32 to position the first magnet 34 and the second magnet 36 arranged on the shaft 32 at the positions shown in FIG. 7. In other words, the first magnet 34 may be positioned at its initial position.

[0109] The winding system 10 then repeats the operations of steps S1 to S8 described with reference to FIGS. 3 to 18, repeating the series of operations for obtaining the wound body 1, thereby obtaining a plurality of wound bodies 1.

[0110] According to this embodiment, the shaft 32 is used as a cylinder in which the foil material (corrugated sheet) 5 is attached to the outer peripheral surface of the shaft 32 by the first magnet 34. In this case, when obtaining the wound body 1 using the foil material 5, there is no need to bend the tip or other position of the foil material 5. Furthermore, such a wound body 1 without a bent portion does not require straightening the bent portion when used later, making it possible to obtain an easy-to-use wound body 1. Furthermore, since there is no need to bend, for example, the tip of the foil material 5, there is no need to consider bulging of the outer periphery at the bent portion of the foil material 5 when forming the wound body 1.

[0111] Therefore, by using the winding device 12 according to this embodiment, it is possible to obtain the wound body 1 by winding the foil material 5 around the outer circumferential surface of the shaft portion 32 without creating a hook portion on the foil material 5 for engaging with the outer circumferential surface of the shaft portion 32. Therefore, according to this embodiment, it is possible to provide a winding device 12 that does not require folding the foil material 5 when obtaining the wound body 1.

[0112] By using a first magnet 34 provided on the outer peripheral surface of the shaft portion 32 and a second magnet 36 spaced circumferentially from the first magnet 34 on the outer peripheral surface of the shaft portion 32, the foil material 5 can be attached at multiple positions circumferentially on the outer peripheral surface of the shaft portion 32, suppressing expansion of the wound body 1 and making the diameter of each wound body 1 uniform. Therefore, by using the winding device 12 according to this embodiment, it is possible to easily fit the wound body 1 within an appropriate outer diameter.

[0113] When the wound body 1 is wound around the outer peripheral surface of the shaft portion 32, the first magnet 34 and the second magnet 36 are positioned so as to be located at the center in the width direction of the foil material 5. Therefore, when the wound body 1 is wound around the outer peripheral surface of the shaft portion 32, it is possible to prevent the magnetic force acting on the foil material 5 from becoming biased, and it is possible to prevent the foil material 5 from meandering when being wound. Furthermore, the direction in which the foil material 5 is transported is adjusted to be perpendicular to the central axis C of the shaft portion 32, so that it is possible to prevent the foil material 5 from meandering, and to obtain a good wound body 1.

[0114] By using the winding device 12 according to this embodiment, it is possible to prevent the outer periphery of the wound body 1 from swelling at the hooked portion, and it is possible to obtain a wound body 1 that can be easily accommodated within an appropriate outer diameter. Furthermore, such a wound body 1 can ensure good transportability.

[0115] Furthermore, by using a movable base 14 that can move toward and away from the outer peripheral surface of the shaft portion 32, it is possible to adjust the position at which the foil material 5 is attached to the first magnet 34. In this embodiment, it is possible to adjust the arrangement of the base member 42 of the movable base 14 relative to the outer peripheral surface of the shaft portion 32, and the position of the first magnet 34 relative to the base member 42 of the movable base 14 when attaching the foil material 5 to the outer peripheral surface of the shaft portion 32 (the rotation angle of the shaft portion 32). Therefore, when obtaining the wound body 1, it is possible to attach the tip portion 5b of the foil material 5 to the first magnet 34 (see FIGS. 7 to 10).

[0116] Furthermore, the winding system 10 can switch between a position where the magnetic force of the first magnet 34 is exerted on the foil material 5 and a position where the magnetic force is prevented from being exerted on the foil material 5, depending on the position where the base member 42 of the movable base 14 is disposed. This makes it possible to prevent the foil material 5 from sticking to an unintended position on the outer circumferential surface of the shaft member 32.

[0117] Furthermore, by using the winding presser 24 to lightly press down on the foil material 5 while winding it around the outer peripheral surface of the shaft 32, it is possible to easily keep the winding diameter of the wound body 1, i.e., the outer diameter of the wound body 1, within an appropriate range. Furthermore, by using the pressing member 94 of the second presser 74 of the winding presser 24, which is long in a direction parallel to the central axis C of the shaft 32, it is possible to discharge the wound body 1 without it coming apart due to its elasticity, while maintaining the outer diameter of the wound body 1. Therefore, when the wound body 1 is used in a subsequent process, because it has a stable outer diameter, it is possible to improve the handleability when gripping the wound body 1 using a robot or the like, for example.

[0118] The sixth drive source (actuator) 82 of the first presser foot 72 of the winding presser foot 24 is an appropriately low-thrust, moment-load-resistant component. Therefore, even if the foil material (corrugated sheet) 5 comes into contact with the roller 84 supported by the lower end of the rod-shaped member 82b, the crests of the corrugated sheet of the foil material 5 can be prevented from being crushed. This prevents the pitch between the crests of the foil material (corrugated sheet) 5 from elongating. Furthermore, the roller 84 supported by the lower end of the rod-shaped member 82b is configured not to come into contact with the outer peripheral surface of the shaft portion 32, making it difficult for the foil material (corrugated sheet) 5 to be deformed by the force, for example, when the rod-shaped member 82b descends.

[0119] When a force is applied to the rod-shaped member 82b via the roller 84, the sixth driving source (air cylinder) 82 has a moment resistance that keeps the rod-shaped member 82b straight with respect to the cylinder portion 82a. This suppresses vibration of the roller 84. This prevents the foil material 5 from meandering.

[0120] An appropriate moment-resistant load component is used as the seventh drive source (actuator) 92 of the second presser foot 74 of the winding presser foot 24. When a force is applied to the rod-shaped member 92b via the presser foot 94, the seventh drive source (air cylinder) 92 has the moment resistance to maintain the rod-shaped member 92b in a straight state relative to the cylinder portion 92a. This suppresses vibration of the presser foot 94. The presser foot 94 is formed to press the foil material 5 across its entire width. Therefore, when the wound foil material 5 is discharged in the axial direction of the shaft portion 32, the foil material 5 can continue to be pressed down until it reaches the storage box 28 for the wound foil material 1. This allows the wound foil material 1 to be stored in the storage box 28 for the wound foil material 1 while maintaining its outer diameter.

[0121] Furthermore, when the foil material 5 is a corrugated sheet, by counting the number of wave crests based on the rotation of the corrugated sheet feed gear 54, it is possible to obtain a plurality of wound bodies 1 each having the same or approximately the same predetermined number of wave crests.

[0122] The control unit 26 of the winding system 10 controls the drive source 32a of the shaft 32 before the foil material 5 is wound around the outer peripheral surface of the shaft 32 to position the first magnet 34 above the central axis C and on the side from which the foil material 5 is supplied, and before the foil material 5 is wound around the outer peripheral surface of the shaft 32, controls the third drive source 44 of the movable base 14 to bring the movable base 14 close to the outer peripheral surface of the shaft 32 and position the first magnet 34 between the central axis C of the shaft 32 and the movable base 14, controls the drive source 32a of the shaft 32 to rotate the shaft 32 to a position where the foil material 5 guided beyond the downstream end of the movable base 14 is attached to the first magnet 34, further rotates the foil material 5 to a position where it is attached to the second magnet 36, and controls the third drive source 44 of the movable base 14 to move the movable base 14 away from the outer peripheral surface of the shaft 32.

[0123] The winding device 12 according to this embodiment has been described as an example in which two magnets, the first magnet 34 and the second magnet 36, are used. The winding device 12 according to this embodiment only needs to have at least the first magnet 34.

[0124] In the present embodiment, the corrugated sheet feed gear 54 is used to count the number of corrugations of the foil material 5, thereby transporting a predetermined number of foil material 5 downstream from the corrugated sheet feed gear 54. For example, instead of the corrugated sheet feed gear 54 and the drive source 56, the transport surface 52 may be a belt conveyor, roller conveyor, or the like driven by an appropriate drive source. In this case, the transport surface 52 is not limited to a corrugated sheet, and transports flat foil material 5 in a predetermined direction at a predetermined speed. Therefore, the winding device 12 according to the present embodiment can produce the foil material 5 as a wound body 1, regardless of whether the foil material 5 is corrugated or flat. Furthermore, the winding system 10 according to the present embodiment can produce the foil material 5 as a wound body 1, regardless of whether the foil material 5 is corrugated or flat. In this case, the control unit 26 can obtain the length of the foil material 5 to be wound as one wound body 1 based on the transport speed of the transport surface 52.

[0125] Fig. 19(A) is a schematic diagram showing the positional relationship between the winding device 12, the movable base 14, and the winding presser 24 when the leading end 5a of the foil material 5 is at the origin position, and Fig. 19(B) is a schematic diagram viewed from the direction indicated by arrow 19B in Fig. 19(A). Note that Fig. 19(A) is a schematic diagram viewed from the direction indicated by arrow 19A in Fig. 19(B).

[0126] In the above-described embodiment, an example has been described in which the first magnet 34 and the second magnet 36 are disposed so as to exert a magnetic force at approximately the center of the foil material 5 in the width direction. As shown in FIG. 19 , the first magnet 34 may be disposed along the axial direction of the shaft portion 32 along a predetermined central axis C of the shaft portion 32, thereby exerting a magnetic force on the foil material 5. Therefore, it is preferable that the first magnet 34 be disposed along the axial direction of the shaft portion 32 so as to exert a magnetic force symmetrically in the width direction with respect to the center of the foil material 5 in the width direction. Similarly, the second magnet 36 may be disposed along the axial direction of the shaft portion 32 along the predetermined central axis C of the shaft portion 32, thereby exerting a magnetic force on the foil material 5. Therefore, it is preferable that the second magnet 36 be disposed along the axial direction of the shaft portion 32 so as to exert a magnetic force symmetrically in the width direction with respect to the center of the foil material 5 in the width direction.

[0127] The present invention is not limited to the above-described embodiments, and various modifications can be made in the implementation stage without departing from the spirit of the invention. Furthermore, the embodiments may be implemented in appropriate combinations, in which case the combined effects can be obtained. Furthermore, the above-described embodiments include various inventions, and various inventions can be extracted by combining selected elements from the disclosed elements. For example, if the problem can be solved and the desired effect can be obtained even if some elements are deleted from all elements shown in the embodiments, the configuration from which these elements are deleted can be extracted as an invention. The claims of this application as filed are set forth below. [Appendix 1] a columnar or cylindrical shaft portion that rotates around a predetermined central axis and has an outer circumferential surface around which the supplied foil material is wound; a first magnet provided on or inside the outer circumferential surface of the shaft portion, which exerts a magnetic force on the foil material, thereby attaching the foil material to the outer circumferential surface; A winding device having: [Appendix 2] a second magnet is provided on or inside the outer circumferential surface of the shaft portion, spaced apart from the first magnet in a circumferential direction of the outer circumferential surface of the shaft portion, and exerts a magnetic force on the foil material to attach the foil material to the outer circumferential surface; The first magnet and the second magnet are arranged at an angle greater than 0° and within 90° with respect to the central axis. 2. The winding device of claim 1. [Appendix 3] The first magnet is arranged along the axial direction of the shaft portion so as to exert the magnetic force symmetrically in the width direction with respect to the center of the foil material in the width direction. 10. The winding device according to claim 1 or 2. [Appendix 4] a winding device according to appendix 2; a movable base that moves horizontally along a tangential direction of the outer peripheral surface of the shaft portion to approach and move away from the outer peripheral surface of the shaft portion, and that guides the foil material to the outer peripheral surface of the shaft portion when it approaches the outer peripheral surface of the shaft portion; a drive source that rotates the shaft portion and a control unit that controls the drive source of the movable base; Equipped with The control unit Before the foil material is wound around the outer peripheral surface of the shaft portion, the drive source of the shaft portion is controlled to position the first magnet above the central shaft and on the side from which the foil material is supplied; before the foil material is wound around the outer peripheral surface of the shaft portion, the drive source of the movable base is controlled to move the movable base closer to the outer peripheral surface of the shaft portion, and the first magnet is disposed between the central axis of the shaft portion and the movable base; controlling the drive source of the shaft to rotate the shaft to a position where the foil material guided beyond the downstream end of the movable base is attached to the first magnet, and further rotating the foil material to a position where the foil material is attached to the second magnet; controlling the drive source of the movable base to move the movable base away from the outer circumferential surface of the shaft portion; Winding system. [Appendix 5] a winding presser that faces the outer peripheral surface of the shaft portion, is movable in a direction approaching and a direction away from the central axis of the shaft portion, and presses the foil material toward the outer peripheral surface of the shaft portion when moved in a direction approaching the central axis of the shaft portion; the control unit controls a drive source that moves the winding presser foot; the control unit rotates the shaft unit to a position where the foil material guided beyond the downstream end of the movable base is attached to the first magnet, and then controls the drive source of the winding presser to move the winding presser in a direction approaching the central axis of the shaft unit, thereby guiding the foil material to the outer circumferential surface of the shaft unit. 5. The winding system of claim 4. [Appendix 6] The winding hold-down a rod-shaped member that is movable in a direction toward and away from the central axis of the shaft portion; a roller provided on the rod-shaped member and facing the outer circumferential surface of the shaft portion; and the roller rotates in a direction opposite to a direction of rotation of the outer circumferential surface around the central axis of the shaft portion, the rod-shaped member moves the roller toward and away from the outer circumferential surface of the shaft portion in response to contact between the foil material and the roller; 6. The winding system of claim 5. [Appendix 7] the control unit controls the drive source of the movable base when the movable base is disposed at a position spaced apart from the outer peripheral surface of the shaft portion, to space the downstream end of the movable base from the outer peripheral surface of the shaft portion by at least the thickness of the foil material that is overlapped; the winding presser includes a presser member that guides the foil material between the movable base and the presser member at a position where the movable base is spaced apart from the outer circumferential surface of the shaft portion; 6. The winding system of claim 5. [Appendix 8] A winding device according to claim 1 or 2; a conveying unit that feeds the foil material onto the outer peripheral surface of the shaft portion of the winding device; a control unit that controls a drive source that rotates the shaft portion and a drive source of the conveying unit that feeds the foil material to the outer peripheral surface of the shaft portion; Equipped with the control unit controls each of the drive sources so that a feed speed at which the foil material is fed onto the outer peripheral surface of the shaft portion is greater than a winding speed of the foil material on the shaft portion. Winding system. [Appendix 9] a cutter provided on the conveying unit, the cutter defining a position where the foil material is cut as an origin position of the winding system and controlled by the control unit to cut the foil material at the origin position; a sensor that is provided upstream of the conveying section from the cutter and is controlled by the control section to detect the proximity or contact and separation of the foil material with respect to the conveying section; Equipped with The control unit driving the drive source of the conveying unit to feed the foil material from the origin position through a downstream end of the conveying unit toward the outer circumferential surface of the shaft portion; the driving source of the shaft portion is driven to rotate the shaft portion to a predetermined rotation angle, and the shaft portion is attached to the first magnet while being wound up with the foil material on the outer peripheral surface of the shaft portion, and the conveying unit and the driving source of the shaft portion are stopped; When the sensor detects the proximity or contact of the foil material with the conveying unit, the cutter is driven to cut the foil material at the origin position. The driving source of the shaft portion is driven to finish winding the foil material. 9. The winding system of claim 8. [Explanation of symbols]

[0128] 1...winding body, 5...foil material (corrugated sheet), 10...winding system, 12...winding device, 14...movable base, 16...conveying section, 18...first sensor (touch sensor), 20...cutter, 22...second sensor, 24...winding hold down, 26...control section, 30...casing, 32...shaft section, 32a...first driving source, 34...first magnet, 36...second magnet, 38...discharge plate, 38a...second driving source, 39...annular section, 42...base member (plate-shaped member), 44...third driving source (air cylinder), 44a...cylinder portion, 44b...rod portion, 46...connecting member, 50...housing, 52...conveying surface, 54...corrugated plate feed gear, 56...fourth driving source, 62...fifth driving source, 72...first presser foot, 74...second presser foot, 82...sixth driving source (air cylinder), 82a...cylinder portion, 82b...rod-shaped member, 84...roller, 92...seventh driving source (air cylinder), 92a...cylinder portion, 92b...rod-shaped member, 94...presser member.

Claims

1. a columnar or cylindrical shaft portion that rotates around a predetermined central axis and has an outer circumferential surface around which the supplied foil material is wound; a first magnet provided on or inside the outer circumferential surface of the shaft portion, which exerts a magnetic force on the foil material, thereby attaching the foil material to the outer circumferential surface; and a second magnet is provided on the outer peripheral surface of the shaft portion or inside the outer peripheral surface of the shaft portion, spaced apart from the first magnet in a circumferential direction of the outer peripheral surface of the shaft portion, and exerts a magnetic force on the foil material to attach the foil material to the outer peripheral surface; The first magnet and the second magnet are disposed at an angle greater than 0° and within 90° with respect to the central axis. Winding device.

2. The first magnet is provided along the axial direction of the shaft portion so as to exert the magnetic force symmetrically in the width direction with respect to the center of the foil material in the width direction. The winding device according to claim 1 .

3. A winding device according to claim 1; a movable base that moves horizontally along a tangential direction of the outer peripheral surface of the shaft portion to approach and move away from the outer peripheral surface of the shaft portion, and that guides the foil material to the outer peripheral surface of the shaft portion when it approaches the outer peripheral surface of the shaft portion; a drive source that rotates the shaft portion and a control unit that controls the drive source of the movable base; Equipped with The control unit Before the foil material is wound around the outer peripheral surface of the shaft portion, the drive source of the shaft portion is controlled to position the first magnet above the central axis and on the side from which the foil material is supplied, before the foil material is wound around the outer peripheral surface of the shaft portion, the drive source of the movable base is controlled to move the movable base close to the outer peripheral surface of the shaft portion, and the first magnet is positioned between the central axis of the shaft portion and the movable base, controlling the drive source of the shaft to rotate the shaft to a position where the foil material guided beyond the downstream end of the movable base is attached to the first magnet, and further rotating the foil material to a position where the foil material is attached to the second magnet; controlling the drive source of the movable base to move the movable base away from the outer circumferential surface of the shaft portion; Winding system.

4. a winding presser that faces the outer peripheral surface of the shaft portion, is movable in a direction approaching and a direction away from the central axis of the shaft portion, and presses the foil material toward the outer peripheral surface of the shaft portion when moved in a direction approaching the central axis of the shaft portion; the control unit controls a drive source that moves the winding presser foot; the control unit rotates the shaft unit to a position where the foil material guided beyond the downstream end of the movable base is attached to the first magnet, and then controls the drive source of the winding presser to move the winding presser in a direction approaching the central axis of the shaft unit, thereby guiding the foil material to the outer circumferential surface of the shaft unit. The winding system of claim 3 .

5. The winding hold-down a rod-shaped member that is movable in a direction toward and away from the central axis of the shaft portion; a roller provided on the rod-shaped member and facing the outer circumferential surface of the shaft portion; and the roller rotates in a direction opposite to a direction of rotation of the outer circumferential surface around the central axis of the shaft portion, the rod-shaped member moves the roller toward and away from the outer circumferential surface of the shaft portion in response to contact between the foil material and the roller; The winding system of claim 4 .

6. when the movable base is disposed at a position spaced apart from the outer peripheral surface of the shaft portion, the control unit controls the drive source of the movable base to space the downstream end of the movable base from the outer peripheral surface of the shaft portion by at least a thickness of the foil material that is overlapped; the winding presser includes a presser member that guides the foil material between the movable base and the presser member at a position where the movable base is spaced apart from the outer circumferential surface of the shaft portion; The winding system of claim 4 .

7. The winding device according to claim 1 or 2; a conveying unit that feeds the foil material onto the outer peripheral surface of the shaft portion of the winding device; a control unit that controls a drive source that rotates the shaft portion and a drive source of the conveying unit that feeds the foil material to the outer peripheral surface of the shaft portion; Equipped with the control unit controls each of the drive sources so that a feed speed at which the foil material is fed onto the outer peripheral surface of the shaft portion is greater than a winding speed of the foil material on the shaft portion. Winding system.

8. a cutter provided on the conveying unit, the cutter defining a position where the foil material is cut as an origin position of the winding system and controlled by the control unit to cut the foil material at the origin position; a sensor that is provided upstream of the conveying section from the cutter and is controlled by the control section to detect the proximity or contact and separation of the foil material with respect to the conveying section; Equipped with The control unit driving the drive source of the conveying unit to feed the foil material from the origin position through a downstream end of the conveying unit toward the outer circumferential surface of the shaft portion; the driving source of the shaft portion is driven to rotate the shaft portion to a predetermined rotation angle, and the shaft portion is attached to the first magnet while being wound up with the foil material on the outer peripheral surface of the shaft portion, and the conveying unit and the driving source of the shaft portion are stopped; When the sensor detects the proximity or contact of the foil material with the conveying unit, the cutter is driven to cut the foil material at the origin position. The driving source of the shaft portion is driven to finish winding the foil material. The winding system of claim 7.

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