JP2012166885A - Method for manufacturing roll and roll - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a roll 73 having a sufficiently small amount of misalignment between long elements 72.SOLUTION: An alignment groove 62 provided with a pair of groove side surfaces 62a, 62a that are in contact with both width-direction ends of the long element 72 is disposed at a position distant from a roll surface 73a, the pair of groove side surfaces 62a, 62a and a pair of wound end surfaces 73c formed at both width-direction ends of a plurality of wound layers 73b are disposed so as to be present on the same plane, and the long element 72 is hung on the alignment groove 62 and wound therearound.

Description

  The present invention relates to a roll manufacturing method and a roll in which a long body such as an adhesive tape is wound.

  The roll of a predetermined width may be created by a manufacturing method in which a wide sheet is wound around a winding member and then cut by a predetermined width with a cutter. In this manufacturing method, the thickness of the cutter and the angle of the blade edge Since the cutting direction is likely to change, the dimensional error in the width direction tends to increase on the roll center side where the blade edge is inserted deeply. Therefore, before winding onto the winding member, a long sheet having a predetermined width is formed by cutting a wide sheet, and the long body is wound around the winding member while being positioned in the width direction. A method may be employed.

  Specifically, Patent Document 1 prepares an edge regulating roller having a pair of flanges that are inclined so that the interval increases outward from both ends in the width direction. Disclosed is a manufacturing method in which a roll is disposed at a position where a scale reaches a roll so as to be rotatable, and both ends in the width direction of the long body are brought into contact with flanges of an edge regulating roller and wound while regulating the position in the width direction. Yes.

  In Patent Document 2, a guide block having a pair of flanges inclined outward in the range of 0 to 20 degrees from both ends in the width direction is prepared, and this guide block is used as a long roll. A manufacturing method is disclosed in which it is placed in a fixed state at the position reached, and wound while the position of the elongated body is abutted against the flange of the guide block and the position is regulated in the width direction.

JP 62-31645 A JP-A-6-48623

  However, when the flange of the edge regulating roller or the guide block is inclined outward from the both ends in the width direction as in the conventional case, the interval increases from the base side to the tip side of the flange. Therefore, it is necessary to bring the base portions of the flanges of the edge regulating roller and the guide block close to the roll surface so that the accuracy of position regulation in the width direction of the roller does not decrease. As a result, when the long body is provided with an adhesive, when the adhesive that protrudes from the long body adheres to the flange, the adhered adhesive is unstable braking force between the flange and the roll. As a result, excessive or excessive tension is applied to the long body in the middle of winding in an unstable manner. Then, this unstable tension greatly changes the width dimension of the long body, thereby increasing the amount of displacement in the width direction between the long bodies of the roll.

  In particular, when it is fixed like the guide block of Patent Document 2, a large amount of adhesive stays in a short time because the adhesive promotes the adhesion of a new adhesive at the place where it adheres. For this reason, an increase in the amount of deviation in the width direction between the long bodies of the rolls becomes significant. Furthermore, when winding a long body having a narrow width with a large roll diameter, the accuracy of position regulation of the long body is likely to decrease, and the width of the roll surface is increased, and the width dimension of the long body is increased. Increases the amount of displacement between the elongated bodies.

  The present invention has been made in view of the above problems, and even when a narrow-width long body containing an adhesive is wound with a large roll diameter, the amount of displacement between the long bodies is sufficiently large. It aims at providing the manufacturing method and roll of a roll which can be made into a small state.

  In the present invention, by winding a long body having a predetermined width with an adhesive around a winding member, a plurality of winding layers of the long body exist in the radial direction from the winding member to the roll surface. A roll manufacturing method, wherein an alignment groove having a pair of groove side surfaces contacting both ends in the width direction of the elongated body is disposed at a location separated from the roll surface, and the pair of groove side surfaces; A pair of winding end surfaces formed at both ends in the width direction of the plurality of winding layers are arranged so as to exist on the same plane, and are wound with the elongated body being hung on the alignment groove.

  According to the above configuration, when winding the long body around the winding member, the pair of groove side surfaces and the pair of winding end surfaces formed at both ends in the width direction of the plurality of winding layers are on the same plane. By arranging the alignment grooves so as to exist respectively, the traveling direction of the long body from the alignment groove toward the roll surface coincides with the winding direction of the roll, so that the winding is performed while being positioned in the width direction by the alignment grooves. Times will be done. At this time, even when the adhesive contained in the long body adheres to the alignment groove, the alignment groove is disposed at a location separated from the roll surface, so that the adhered adhesive is placed between the alignment groove and the roll surface. It does not act as a braking force.

  As a result, in the entire period from the start to the end of winding of the long body, the winding of the long body is performed while being positioned in the width direction with a stable tension. Even when the scale is wound with a large roll diameter, the amount of deviation between the long bodies can be made sufficiently small.

  The alignment groove in the present invention may have a groove depth larger than the thickness of the elongated body.

  According to the above configuration, by having a groove depth larger than the thickness of the long body, the groove depth can be set so that a contact period between the widthwise ends of the long body and the groove side surfaces of the alignment groove separated from the alignment grooves is reduced. Since it can be made longer than when it is small, it is possible to improve the accuracy with which the side surface of the groove comes into contact with both ends of the long body in the width direction and is regulated in the width direction. Thereby, the deviation | shift amount between elongate bodies can be made into a sufficiently smaller state.

  In the present invention, the alignment groove may be wound while being moved in the traveling direction of the elongated body.

  According to the above configuration, even when the adhesive adheres to the alignment groove, the adhered adhesive moves in the advancing direction of the elongated body together with the alignment groove, so that the adhesive stays at the attachment location. Adhesion of new adhesive is difficult to promote. Therefore, since the adhesion amount of the adhesive in the alignment groove is prevented from rapidly increasing, the amount of change in tension with respect to the long body due to the adhesive staying in the alignment groove acting as a braking force for the progress of the long body is reduced. be able to. As a result, since the width of the long body is stable in the period from the start of winding to the completion of winding, even when a long body with a narrow width is wound with a large roll diameter, the length of each wound layer is long. The amount of deviation in the width direction between the scales can be made sufficiently small.

  In the present invention, the alignment groove having the alignment groove in the entire circumferential direction is driven to rotate about the axis of the alignment roller, so that the alignment groove can be moved in the traveling direction of the elongated body. Good.

  According to the above configuration, the relative positional relationship and speed difference between the side surface of the alignment groove and the elongated body can be adjusted by increasing or decreasing the rotation speed of the alignment roller. Can be easily adjusted to a desired value.

  This invention is a roll manufactured by said manufacturing method, Comprising: The largest gap | deviation amount of the width direction both ends of the said elongate body in all the said winding layers is 0 mm-1.0 mm, Preferably it is 0 mm- It is 0.7 mm, more preferably 0 mm to 0.5 mm or less.

  According to said structure, it can confirm easily that it is the roll manufactured by the manufacturing method of the roll of this invention.

  According to the present invention, it is possible to obtain a roll having a sufficiently small amount of displacement between elongated bodies.

It is explanatory drawing which shows the process of the manufacturing method of a roll. It is explanatory drawing which shows the process of the manufacturing method of a roll. It is explanatory drawing which shows the process of the manufacturing method of a roll. It is explanatory drawing which shows the positional relationship of an alignment roller and a roll. It is explanatory drawing which shows the lamination | stacking state of a roll. It is explanatory drawing which shows the lamination | stacking state of a roll.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
(Roll manufacturing method)
In the roll manufacturing method of the present embodiment, as shown in FIG. 4, a long body 72 having a predetermined width provided with an adhesive is wound around the winding member 8, thereby being applied from the winding member 8 to the roll surface 73 a. This is a method for manufacturing a roll 73 in which a wound layer 73b of a plurality of long bodies 72 is present in the radial direction. As shown in FIG. 1, an alignment roller setting step, a long body setting step, an unwinding step, and a cutting step And an alignment / winding process and an unloading process. Details of the roll 73 will be described later.

(Alignment roller preparation process)
The alignment roller preparation step is a step of selecting a desired alignment roller 6 from a plurality of types of alignment rollers 6 and mounting the alignment roller 6 on the alignment device 2. More specifically, as shown in FIG. 1, product specifications such as the roll diameter and roll width of the roll 73 of FIG. 4 to be produced and the thickness of the wound layer 73b (long body 72) are read out. Then, the alignment roller 6 having a groove width that matches the width of the long body 72 and a groove depth that is a multiple of the thickness of the wound layer 73b is selected from a plurality of types. The selected alignment roller 6 is moved from the storage location, and the rotation shafts 63 and 63 of the alignment roller 6 are rotatably mounted on a roller support mechanism (not shown) in the alignment device 2.

(Long body setting process)
The long body setting process is a process subsequent to the alignment roller preparation process, and is a process for enabling winding of the long body 72 corresponding to the roll 73 to be produced. More specifically, a plurality of winding members 8 corresponding to the width of the winding layer 73 b (elongate body 72) of the roll 73 are mounted on the winding roller 51. At this time, the winding member 8 is movable in the width direction of the winding roller 51.

  Thereafter, the interval between the winding members 8 is adjusted so that the winding member 8 and the alignment groove 62 of the alignment roller 6 are in the same positional relationship in the vertical direction. The adjustment method of the positional relationship will be described in detail. When the distance between the winding member 8 and the alignment roller 6 can be enlarged and reduced, the alignment roller 6 approaches the vicinity of the peripheral surface of the winding roller 51. Until this is done, the distance between the winding member 8 and the alignment roller 6 is reduced. Then, the winding members 8 are fitted into the alignment grooves 62 of the alignment roller 6 while the interval between the winding member 8 and the alignment roller 6 is manually increased as necessary, so that the alignment roller 6 The alignment groove 62 and the winding member 8 are in a positional relationship that coincides in the vertical direction.

  In addition, when the gap between the winding member 8 and the alignment roller 6 is fixed, a plate-like or belt-like position adjusting member is erected in the vertical direction. The positional relationship between the alignment roller 6 and the alignment groove 62 is adjusted. The position adjusting member may be a laser beam. When the adjustment of the positional relationship is completed in this way, all the winding members 8 are fixed to the winding roller 51.

  Next, the sheet roll 7 formed of the sheet 71 having the same thickness as the thickness of the wound layer 73b (long body 72) of the roll 73 is selected. The sheet roll 7 is taken out from a roll storage (not shown) and conveyed to the unwinding device 3 by the suspension device 91 of the roll conveying device 9. The sheet roll 7 has at least the thickness of the long body 72 and has a width that is a multiple of the width of the long body 72. Then, the sheet roll 7 is set in the unwinding device 3.

  Thereafter, the leading end portion of the sheet 71 positioned on the outer surface of the sheet roll 7 is unwound manually, and is advanced to the cutting device 4 through a conveyance path formed by a guide roller or the like. The sheet 71 is cut into a roll width by the cutting device 4 to form a plurality of long bodies 72. In these long bodies 72, the odd-numbered long bodies 72 in the width direction are directed downward, while the even-numbered long bodies 72 in the width direction are directed upward. The long body 72 directed downward is hung on each alignment groove 62 of the lower alignment roller 6 like a belt and a pulley, and is put into a set standby state in which the tip portion becomes a free end. On the other hand, the long body 72 directed upward is hung on each alignment groove 62 of the upper alignment roller 6 and is set in a standby state in which the front end portion is a free end.

  Thereafter, the distal end portion of the long body 72 is fixed to the winding members 8 and 8 disposed directly below or directly above. That is, the pair of groove side surfaces 62a and 62a in the alignment groove 62 and the pair of winding end surfaces 73c formed at both ends in the width direction of the plurality of winding layers 73b are arranged on the same plane. At this time, each long body 72 and each winding member 8 are in a positional relationship in which they are aligned in the vertical direction, so that the longitudinal direction of each long body 72 is aligned with the winding direction of the winding member 8. Fixing work is easily performed. The fixing operation may be performed by attaching an adhesive for the long body 72 to the winding member 8.

  When the interval between the winding member 8 and the alignment roller 6 can be enlarged and reduced, the alignment with the winding member 8 is performed until the alignment roller 6 approaches the vicinity of the peripheral surface of the winding roller 51. The distance to the roller 6 is reduced. As a result, each winding member 8 is brought into a state of being fitted into each alignment groove 62, and the groove bottom surface 62 b of the alignment groove 62 is pressed into the long member 72 in the direction of the winding member 8. Then, the fixing between the winding roller 51 and the winding member 8 is temporarily released. As a result, as shown in FIG. 5, the winding member 8 is maintained in the width direction of the winding roller 51 by the groove side surfaces 62 a and 62 a, while being rotatable with respect to the winding roller 51. Become. That is, the winding member 8 is rotatable while maintaining the positional relationship with the alignment groove 62. Then, as shown in FIG. 2, each winding member 8 is rotated manually, and the slackness of the long body 72 is eliminated. After the slackness of all the long bodies 72 is eliminated, the winding roller 51 and the winding member 8 are fixed again, and then the interval between the winding member 8 and the alignment roller 6 is expanded. .

(Unwinding process, cutting process, alignment / winding process)
The unwinding step, the cutting step, and the alignment / winding step are steps that are performed simultaneously after the long body setting step. The unwinding step is a step of unwinding the sheet 71 of the sheet roll 7 set in the unwinding device 3 at a predetermined traveling speed. The cutting step is a step of forming a plurality of long bodies 72 by cutting the sheet 71 unwound from the unwinding device 3 into a predetermined width. The alignment / winding step is a step of winding the long bodies 72 around the winding members 8 simultaneously.

  More specifically, the rotation operation of the winding member 8 in the winding device 5 and the rotation operation of the sheet roll 7 in the unwinding device 3 are started simultaneously, and the rotation speeds of the winding device 5 and the unwinding device 3 are increased. By being adjusted, the sheet 71 and the long body 72 are conveyed while maintaining a constant tension. As a result, the cutting width in the cutting device 4 is stabilized, and after the long body 72 having a predetermined width is formed with high accuracy, the alignment / winding process in the winding device 5 is executed with stable operation. The

  In the alignment / winding step, as shown in FIGS. 3 and 4, the alignment groove 62 having a pair of groove side surfaces 62a and 62a contacting both ends of the long body 72 in the width direction is separated from the roll surface 73a. And a pair of groove side surfaces 62a and 62a and a pair of winding end surfaces 73c formed at both ends in the width direction of the plurality of winding layers 73b are arranged on the same plane. A long body 72 is hung on an alignment groove 62 having a groove depth deeper than the thickness of the plurality of winding layers 73b, and the long body 72 is wound in the winding direction (traveling direction) which is the rotation direction of the winding roller 51. The roll 73 is manufactured by a winding method of winding by moving to.

  Here, the distance when the “alignment groove 62 is arranged at a location separated from the roll surface 73 a” is such that the length of the elongated body 72 is (1) the alignment roller 6 and the groove depth of the alignment groove 62. It is preferable that the roll surface 73a is set to a degree that prevents the possibility of contact with the roll surface 73a due to mechanical vibration and the like and (2) the vibration error in the width direction of the long body 72 can be ignored.

  According to the winding method described above, when the elongated body 72 is wound around the winding member 8, a pair of windings formed at both ends in the width direction of the pair of groove side surfaces 62a and 62a and the plurality of winding layers 73b. By arranging the alignment grooves 62 so that the rotation end surfaces 73c are present on the same plane, the traveling direction of the long body 72 from the alignment grooves 62 toward the roll surface 73a coincides with the winding direction of the roll 73. Therefore, the winding is performed while being positioned in the width direction by the alignment groove 62. At this time, even when the adhesive contained in the long body 72 adheres to the alignment groove 62, the alignment groove 62 is disposed at a location separated from the roll surface 73a. It does not act as a braking force with the surface 73a. Thus, since the winding of the long body 72 is performed while being positioned in the width direction with a stable tension in the entire period from the start to the end of the winding of the long body 72, the narrow width including the adhesive is reduced. Even when the long body 72 is wound with a large roll diameter, the displacement in the width direction between the long bodies 72 can be made sufficiently small.

  Further, since the alignment groove 62 has a groove depth larger than the thickness of the long body 72, contact between both ends in the width direction of the long body 72 separated from the alignment groove 62 and the groove side surfaces 62 a and 62 a of the alignment groove 62. Since the period can be made longer than when the groove depth is small, the groove side surfaces 62a and 62a can be brought into contact with both ends of the long body 72 in the width direction to improve the accuracy of position regulation in the width direction. Thereby, the deviation | shift amount between the elongate bodies 72 can be made into a sufficiently smaller state.

  Furthermore, by winding the alignment groove 62 while moving the long body 72 in the traveling direction, the following advantages can be obtained.

  Specifically, when the long body 72 is wound while being positioned in the width direction by the alignment groove 62, the adhesive protruding from both ends of the long body 72 may adhere to the alignment groove 62. . At this time, if the alignment groove 62 is fixed, once the adhesive adheres to the alignment groove 62, the alignment groove 62 promotes the adhesion of a new adhesive at the place where the adhesive is attached. This adhesive stays in a short time. As a result of the adhesive staying in the alignment groove 62 being combined with the adhesive of the long body 72 of each winding layer 73b, it acts as a braking force between the alignment groove 62 and the long body 72 during winding. Therefore, the sudden increase in the amount of staying adhesive gives a larger tension than necessary to the long body 72 in the middle of winding. The rapidly increased tension greatly changes the width of the long body 72, and as a result, increases the amount of displacement in the width direction of the long body between the wound layers 73b.

  On the other hand, when winding is performed while moving the alignment groove 62 in the advancing direction of the long body 72, even if the adhesive adheres to the alignment groove 62, the adhered adhesive does not adhere to the alignment groove 62. At the same time, the movement of the long body 72 in the advancing direction makes it difficult for the adhesion of the new adhesive to be promoted as compared with the case where the adhesive remains at the adhesion position. Accordingly, since a sudden increase in the amount of adhesive attached to the alignment groove 62 is prevented, the adhesive staying in the alignment groove 62 acts as a braking force for the advancement of the long body 72, and a change in tension with respect to the long body 72 is caused. The amount can be reduced. As a result, since the width of the long body 72 is stabilized in the period from the start of winding to the completion of winding, each winding layer is used even when the long body 72 having a narrow width is wound with a large roll diameter. The amount of displacement in the width direction between the long bodies 72 at 73b can be made sufficiently small.

  Note that the alignment roller 6 in the present embodiment may be in a support form that can rotate freely in the alignment apparatus 2, or may be in a support form in which the rotation speed can be adjusted by a rotation driving force in the alignment apparatus 2. . The support form in which the rotation speed can be adjusted will be described in detail. In this support form, the alignment groove 62 is moved in the traveling direction of the long body 72 when the alignment roller 6 is driven to rotate about the axis. . In the case of a support form in which the rotation speed can be adjusted, the relative positional relationship and speed difference between the groove side surfaces 62 a and 62 a of the alignment groove 62 and the long body 72 are adjusted by increasing or decreasing the rotation speed of the alignment roller 6. Therefore, the bonding force between the wound layers 73b in the roll 73 can be easily adjusted to a desired value.

(Unloading process)
When the roll 73 has a predetermined winding diameter, the winding device 5 and the unwinding device 3 are stopped. Thereafter, all the long bodies 72 are cut between the roll 73 and the alignment roller 6 to be in the set standby state of FIG. The roll 73 is unloaded to a subsequent process by a unillustrated unloader such as a cart or a roll transfer device 9. In addition, the take-up roller 51 is extracted from the roll 73 and set in the take-up device 5 before being carried out, so that the setting work in the long body setting process of FIG. 2 is performed.

(Roll 73)
As shown in FIG. 5, the roll 73 manufactured by the manufacturing method including the above-described steps has a long length in all the winding layers 73 b regardless of the winding diameter of the roll 73 (the width L4 of the long body 72). The maximum amount of deviation at both ends in the width direction of the scale 72 is 0 mm to 1.0 mm, preferably 0 mm to 0.7 mm, more preferably 0 mm to 0.5 mm. In addition, thickness L1 of the winding layer 73b (elongate body 72) is set to 0.05 mm-5.3 mm.

  More specifically, the sheet 71 has at least a release layer 711 and an adhesive layer 712. The sheet 71 is formed by applying an adhesive composition solution on a release film to be the release layer 711 to form an application layer, and drying the application layer to form an adhesive layer 712. Yes. The adhesive composition solution may contain an inorganic filler as necessary. The coating method of the adhesive composition solution is not particularly limited, and examples thereof include a method of coating using a comma coating method, a fountain method, a gravure method, and the like. The coating thickness may be appropriately set so that the thickness L3 of the adhesive layer 712 finally obtained by drying the coating layer is in the range of 0.025 mm to 5.0 mm. Furthermore, it does not specifically limit as a viscosity of adhesive composition solution, 400-2500 mPa * s is preferable and 800-2000 mPa * s is more preferable.

  It does not specifically limit as a release film (release layer 711), A conventionally well-known thing can be used. Specifically, for example, those in which a release coat layer such as a silicone layer is formed on the bonding surface of the release film substrate to the adhesive layer may be mentioned. Moreover, as a base material of a release film, the resin film which consists of paper materials, such as glassine paper, polyethylene, a polypropylene, polyester, etc. is mentioned, for example. The release film thickness L2 is set to 0.025 mm to 0.3 mm.

  In the present embodiment, the case where the long body 72 (sheet 71) is provided with the adhesive layer 712, such as an adhesive tape, is described, but the present invention is not limited to this. It can be applied to winding of all the long bodies 72 that do not include the layer 712. For example, the long body 72 may be an elastic tape used for cushioning a display frame of a notebook computer or a word processor, or may be a magnetic tape, an ink ribbon, a photographic film, Non-adhesive tape such as paper may be used.

(Roll manufacturing equipment)
Next, as shown in FIG. 1, a roll manufacturing apparatus 1 capable of executing each process that is the manufacturing method of the present embodiment will be described. In addition, of course, the manufacturing method of this embodiment can be performed also by the roll manufacturing apparatus of another structure.

  The roll manufacturing apparatus 1 includes a roll conveying device 9 that conveys the sheet roll 7, an unwinding device 3 that unwinds the sheet 71 from the sheet roll 7, and a plurality of long bodies 72 by cutting the sheet 71 into predetermined width units. The cutting device 4 that performs the alignment, the alignment device 2 that aligns the plurality of long bodies 72 while simultaneously regulating the position in the width direction, the winding device 5 that winds the long bodies 72 into the roll 73, and the winding device 5 And a carry-out device for carrying out the roll 73 wound in the step to a subsequent process.

  The roll conveying device 9 has a function of executing an alignment roller setting process, and is formed so as to be able to convey the sheet roll 7 to an arbitrary place from a previous manufacturing process for storing and creating the sheet roll 7 (not shown). Yes. Specifically, the roll conveyance device 9 includes a rail 92 that is disposed so as to be able to pass over an apparatus that performs each process, one or more suspension devices 91 that can travel the rail 92, and conveyance control (not shown). Device. The suspension device 91 suspends the core 7a of the sheet roll 7 so that the sheet roll 7 can be raised and lowered. The conveyance control device manages and controls the operation of each suspension device 91 so as to convey the sheet roll 7 having a predetermined product specification to a predetermined location based on the production plan information.

  The unwinding device 3 is disposed on the downstream side in the traveling direction of the sheet 71 of the roll conveying device 9. The unwinding device 3 has a function of executing a long body setting process and an unwinding process, and arbitrarily selects a core holding mechanism and a core holding mechanism that detachably holds the core 7a of the sheet roll 7. And a rotation control device that controls the rotation speed of the rotation drive device. A cutting device 4 is arranged on the downstream side of the unwinding device 3. The cutting device 4 has a function of executing a long body setting step and a cutting step, and has a plurality of cutting blades 41 and a cutting blade holding mechanism that holds the cutting blades 41 at any position in the width direction. And a cutting blade drive mechanism that rotationally drives the cutting blade 41 at an arbitrary rotational speed, and a cutting roller 42 on which the blade 71 of the cutting blade 41 abuts and on which the sheet 71 is placed.

  Two alignment devices 2 and 2 are arranged on the downstream side of the cutting device 4. These alignment devices 2 and 2 are arranged symmetrically in the vertical direction. Each alignment apparatus 2 has a function of executing a long body setting process and an alignment / winding process. A winding device 5 is disposed on the downstream side of each of these aligning devices 2. The winding device 5 has a function of executing a long body setting process and an alignment / winding process.

  The winding device 5 has a winding roller 51 that can be attached and detached, and a rotation driving device (not shown) that can rotationally drive the winding roller 51 at an arbitrary rotational speed. The winding roller 51 is set to have a diameter that allows the winding member 8 to be inserted therethrough. Further, the winding roller 51 has a plurality of pressing members that can protrude outward from the roller surface, and the pressing member switches the winding member 8 between the insertion state and the fixed state with respect to the winding roller 51. It is possible. An unloading device is provided on the downstream side of the winding device 5. The unloading device is capable of executing an unloading process. For example, the carry-out device may be a cart on which the roll 73 can be placed, or the roll conveyance device 9.

(Alignment roller 6)
As shown in FIG. 4, the alignment roller 6 used in the roll manufacturing apparatus 1 configured as described above includes a cylindrical roll body 60 and one or more alignment grooves formed on the peripheral surface of the roll body 60. 62 and a pair of rotating shafts 63 and 63 (FIG. 1) projecting from both end faces of the roll body 60. The alignment groove 62 is formed in the circumferential direction of the roll body 60. Further, the axis of the roll body 60 and the axis of the rotary shafts 63 and 63 are matched. As a result, the alignment roller 62 can move the alignment groove 62 at the same position in the width direction when the alignment roller 6 is rotated about the axis center while being fixed in the width direction (axis axis direction). .

  As shown in FIG. 5, the alignment groove 62 is formed by a circumferential surface of the roll body 60 and groove side walls 61 and 61 formed on the circumferential surface of the roll body 60. The peripheral surface of the roll body 60 forms a flat groove bottom surface 62 b of the alignment groove 62, and the groove side walls 61 and 61 form flat groove side surfaces 62 a and 62 a of the alignment groove 62. As a result, the alignment groove 62 has a groove bottom surface 62b parallel to the axial direction of the alignment roller 6 and groove side surfaces 62a and 62a that coincide with the radial direction of the alignment roller 6. It is formed in a rectangular cross section with the outside open.

  A plurality of types of alignment rollers 6 are prepared in advance by combining various groove depths A1 and various groove widths A2 of the alignment grooves 62. The groove width A <b> 2 of the alignment groove 62 is substantially coincident with the width L <b> 4 of the long body 72. Here, “the groove width A2 of the alignment groove 62 substantially coincides with the width L4 of the long body 72” coincides with the extent that the displacement amount of the roll 73 in the width direction can be within an allowable range. Means. In other words, the groove width A2 of the alignment groove 62 may be equal to the width L4 of the long body 72 as long as the shift amount in the width direction of the roll 73 can be within an allowable range. The width L4 of 72 may be enlarged or reduced.

  Further, the groove depth A <b> 1 of the alignment groove 62 is set to a depth that is twice or more the thickness L <b> 1 of the long body 72. Accordingly, the alignment groove 62 is formed at the pair of groove side surfaces 62a and 62a and at both ends in the width direction of the plurality of winding layers 73b by having a groove depth A1 deeper than the layer thickness of the plurality of winding layers 73b. The pair of winding end faces 73c to be provided can be present on the same plane.

  The width A3 of the groove side wall 61 may be the same as the groove width A2 of the alignment groove 62, or may be a different dimension. For example, in FIG. 1, if the alignment rollers 6 having the same width A3 and groove width A2 are arranged in the upper and lower alignment devices 2 and 2, respectively, the odd number and even number cut by the cutting device 4 to a predetermined width. Can be wound by the lower winding device 5, and the even-numbered and odd-numbered long bodies 72 can be wound by the upper winding device 5.

  Further, the alignment rollers 6 attached to the upper and lower alignment devices 2 may have different groove widths A2 of the groove side wall 61. In this case, by setting the cutting width in the cutting device 4 to two types, the two types of long bodies 72 can be wound by the respective winding devices 5 and 5.

  Further, the alignment roller 6 in the present embodiment has a flat top portion of the groove side wall 61, that is, an end face that coincides with the axial direction, but is not limited thereto. For example, as shown in FIG. 6, the alignment roller 6 may have a curved shape in which the top 613 of the groove side wall 61 protrudes in the outer peripheral direction. In this case, even if the accuracy of position regulation with respect to the long body 72 is reduced due to vibration or the like, the top portion 613 of the groove side wall 61 is wound by guiding the long body 72 toward the alignment groove 62. In addition, it is possible to prevent the deterioration of the alignment accuracy of the respective wound layers 73b of the roll 73 and the occurrence of defects such as scratches, breaks, and dirt at the ends in the width direction.

  The embodiments of the present invention have been described above, but only specific examples have been illustrated, and the present invention is not particularly limited. Specific configurations and the like can be appropriately changed in design. Further, the actions and effects described in the embodiments of the present invention only list the most preferable actions and effects resulting from the present invention, and the actions and effects according to the present invention are described in the embodiments of the present invention. It is not limited to things.

DESCRIPTION OF SYMBOLS 1 Roll manufacturing apparatus 2 Alignment apparatus 3 Unwinding apparatus 4 Cutting apparatus 5 Winding apparatus 6 Alignment roller 7 Sheet roll 8 Winding member 9 Roll conveying apparatus 10 Unloading apparatus 61 Groove side wall 62 Alignment groove 62a Groove side face 62b Groove bottom face 63 Rotation Shaft 71 Sheet 72 Long body 73 Roll 73a Roll surface 73b Winding layer 73c Winding end face

Claims (5)

Manufacturing a roll in which a plurality of wound layers of the long body exist in a radial direction from the winding member to the roll surface by winding a long body having a predetermined width provided with an adhesive around the winding member A method,
An alignment groove having a pair of groove side surfaces that contact both ends in the width direction of the elongated body is disposed at a location separated from the roll surface, and
The pair of groove side surfaces and a pair of winding end surfaces formed at both ends in the width direction of the plurality of winding layers are arranged so as to exist on the same plane,
A method for manufacturing a roll, wherein the elongated groove is wound around the alignment groove.   The method for manufacturing a roll according to claim 1, wherein the alignment groove has a groove depth larger than a thickness of the elongated body.   The roll manufacturing method according to claim 2, wherein the alignment groove is wound while being moved in the traveling direction of the elongated body.   The alignment roller having the entire alignment groove in the circumferential direction is driven to rotate about the axis of the alignment roller, thereby moving the alignment groove in the traveling direction of the elongated body. Item 4. A method for producing a roll according to Item 3. A roll manufactured by the roll manufacturing method according to any one of claims 1 to 4,
The roll characterized by the maximum shift amount of the width direction both ends of the said elongate body in all the said winding layers being 0 mm-1.0 mm or less.

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