JP2005324926A - Winder for connecting sheet core - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To accurately wind a band-like sheet around an annular core member 17 while maintaining the convenience of the detaching/attaching operations of the annular core member 17 from/to a disk body 16. <P>SOLUTION: This winder comprises the disk body 16 rotatably fitted to sheet winding rotating shafts 8a and 8b and having annular radius surface parts 16a, locking outer peripheral surface parts 16b, and center extension frame parts 16c, an annular core member 17 fitted locked to the disk body 16 so as to be fitted to the annular radius surface part 16a and to be closely fitted to the locking outer peripheral surface part 16b, an annular contact member 18 fitted to the annular core member 17, and an elastic holding means 19 holding the position of the annular contact member 18 and allowing the annular contact member 18 to be detachably displaced from the disk body 16 by a pressing force of more than a specified magnitude imparted to the annular contact member 18. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a sheet core locking rotary tool for winding a belt-like sheet.

  2. Description of the Related Art Conventionally, there has been a sheet core engaging rotary tool in which an annular core member is concentrically engaged with a disc body via elastic holding means. When winding a belt-like sheet with the sheet core engaging rotator, the sheet core engaging rotator is rotatably fitted on the outer peripheral surface portion of the sheet winding rotary shaft and fed out from a specific location. The starting end of the belt-like sheet is fixed to the outer peripheral surface of the annular core member, and in this state, the sheet take-up rotary shaft is rotated by a motor or the like, and the rotational force of the sheet take-up rotary shaft is applied to the disc body and the annular core member. The rotational force is transmitted through the sheet tension adjusting mechanism so that the rotational force does not exceed a specific level. As a result, the annular core member rotates about the sheet winding rotation axis, and the belt-like sheets are sequentially and properly transmitted. Wind up with tension.

  When the winding of the belt sheet progresses and the diameter reaches a specific size, the sheet core engaging rotary tool is removed from the sheet winding rotary shaft, and the disk core engaging rotary tool is further removed. The sheet roll wound around the annular core member is extracted in the same form as the annular core member, and the annular core member thus obtained and the sheet roll wound around this are thereafter used as sheet roll products. It is moved and used as a unit.

  Further, when winding the belt-like sheet around another annular core member, after the annular core member is engaged with the disk body, the disk body and the annular core member are wound around the sheet winding, as before. The belt is fitted on the shaft, and the belt-like sheet is taken up again.

Patent documents 1 and 2 etc. exist as publicly known data which shows the technical level of the above-mentioned sheet core engagement rotating tool.
Japanese Patent Laid-Open No. 11-91994 JP 2000-16642 A

  In the conventional sheet core-attached rotating tool described above, the stability of the position of the annular core member relative to the disk body, the accuracy of the relative position of the strip sheet with respect to the annular core member, etc. The initial stage, i.e., due to damage during the period until the disk body and the annular core member are rotated several times, the belt-like sheet is caused to come off laterally from the outer peripheral surface of the annular core member, Subsequent winding may not continue.

  The present invention has been made in view of such problems, and it is possible to accurately wind a belt-like sheet around an annular core member while ensuring the ease of detaching the annular core member from a disk body. An object of the present invention is to provide a sheet core-engagement rotating tool that can be used.

  In order to achieve the above object, according to a first aspect of the present invention, as described in claim 1, the first invention is rotatably fitted to the outer peripheral surface portion of the sheet take-up rotary shaft, and has an annular radial surface portion, and the annular radius is provided. A disc body having a locking outer peripheral surface portion positioned on the inner side of the surface portion, and a center extending frame portion protruding to the anti-annular radial surface portion side with respect to the locking outer peripheral surface portion; An annular core member that is engaged with the disc body so that the inner peripheral surface portion is closely fitted to the engaging outer peripheral surface portion, and the other side surface of the annular core member The annular abutting member, and the annular abutting member abutted against the annular radial surface portion and held in a pressed state, and the annular abutting member is pressed by a pressing force greater than a specific size applied to the annular abutting member. Elastic holding means for allowing the contact member to be displaced with respect to the disk body. It is those who are.

The invention is preferably embodied as follows.
That is, as described in claim 2, the elastic holding means includes an annular groove formed on an outer peripheral surface of the center projecting frame portion, and an annular rubber fitted to face the bottom surface in the annular groove. The structure is composed of a material member and an annular coil spring stretched around the outermost periphery of the annular rubber member.

  In addition, as described in claim 3, a notch is formed in each of a plurality of locations at specific intervals in the circumferential direction of the outer peripheral edge of the annular radial surface portion, and the notch has a size related to the fingertip size. The configuration is such that it extends to the center side of the locking outer peripheral surface portion.

  According to a fourth aspect of the present invention, the outer peripheral edge of the annular radial surface portion and the outer peripheral edge of the annular contact member are projected outwardly from the outer peripheral surface of the annular core member. Things and things.

  According to a fifth aspect of the present invention, the annular core member is formed with an annular side wall portion protruding outward in the radial direction at each side edge portion of the outer peripheral surface thereof. The sheet core engaging rotary tool according to 2, 3, or 4.

  According to a second aspect of the present invention, as described in claim 6, the annular core member is concentrically engaged with the disc body rotatably fitted around the sheet winding rotary shaft via the elastic holding means. In the sheet core-attached rotating tool that is to be formed, an annular side wall portion that protrudes about 0.2 mm to several mm radially outward is formed on each side edge portion of the outer peripheral surface of the annular core member. It is what.

According to the present invention described above, the following effects can be obtained.
That is, according to the first aspect of the present invention, the annular contact member is held in the radial position by the locking outer peripheral surface portion, and is pressed against the annular radial surface portion by the elastic force through the annular contact member. Since the position of the sheet winding rotary shaft in the direction of the rotation center line is held, the position of the annular contact member with respect to the disk body is more accurately and stably held than before, and the annular winding core member The belt-like sheet can be accurately wound around the outer peripheral surface. Further, since the elastic holding means can attach / detach the annular core member to / from the disc body by applying a pressing force in the direction of the rotation center line of the sheet take-up rotary shaft, the annular core member can be attached / detached to / from the disc body. It can be done easily.

  According to the second aspect of the present invention, the elastic holding means can be easily and compactly formed, and the presence of the annular rubber member and the annular coil spring makes it possible to form the annular contact member and the annular winding member with respect to the disc body. The core member can be easily attached and detached, and the annular core member can be stably pressed against the annular radial surface portion of the disc body with an elastic force via the annular contact member.

  According to the third aspect of the present invention, by inserting the fingertip into the notch, the pressing force by the fingertip is applied to the one side surface of the annular core member on the annular radial surface portion side in the direction away from the annular radial surface portion. The annular radial surface portion and the annular contact member can be easily separated from the disc body, and when the belt-like sheet is wound around the annular core member, the starting end of the belt-like sheet is used as the annular core. The process of fixing to the outer peripheral surface of the member is performed. In this process, the presence of the notch facilitates the processing of the strip tape positioned on the outer peripheral surface of the annular core member, and the fixing process is quickly performed. You can do it.

  According to a fourth aspect of the present invention, in the initial stage when winding the belt-like sheet around the annular core member, the belt-like sheet wound around the outer circumferential surface of the annular core member is lateral to the outer circumferential surface of the annular core member. The outer peripheral edge of the annular radial surface portion and the outer peripheral edge of the annular contact member are prevented from going away from each other, so that the accuracy of the relative position between the annular core member and the belt-like sheet is ensured. Thus, the belt-like sheet can be accurately wound around the annular core member.

  Further, according to the present invention, the belt-like sheet wound around the outer circumferential surface of the annular core member at the initial stage when the belt-like sheet is wound around the annular core member is the outer circumferential surface of the annular core member. Each annular side wall portion is prevented from coming off from the side of the belt, and the belt-like sheet can be accurately wound around the annular core member.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 shows an outline of a slitter winder 100 equipped with a sheet core rotating tool according to the present invention. A slitter winder 100 includes a supply shaft 1 for a wide sheet A such as paper or plastic film, a cutter device 4 including a first circular blade 2 and a second circular blade 3 for slitting the wide sheet A in a vertical direction, and a cutter. The supply rolls 5a and 5b for supplying the wide sheet A to the apparatus 4 and the take-up rolls 6a and 6b and the take-up rolls 7a and 7b for taking up the narrow-band sheets A1 and A2 cut by the cutter apparatus 4 up and down. It consists of a first sheet winding rotary shaft 8a and a second sheet winding rotary shaft 8b for winding the narrow strip sheets A1, A2. The wide sheet A and the narrow strips A1 and A2 pass through the guide rolls 9a to 9d and the tension adjusting roll 10 in addition to the above-described members.

FIG. 2 shows the cutter device 4. The first circular blade 2 is supported by a first rotating shaft 12 that is rotated by a motor or the like (not shown) via a holder 11 so as to chop the wide sheet A into narrow strip sheets A1 and A2. The blade face is attached with a predetermined interval along the radial surface of the first rotating shaft 12.
The second circular blade 3 is fixed on the second rotating shaft 13 by the number corresponding to the first circular blade 2 with the blade surface being along the radial surface of the second rotating shaft 12.

  Thus, the 1st rotating shaft 12 to which the 1st circular blade 2 was attached, and the 2nd rotating shaft 13 to which the 2nd circular blade 3 was attached are arrange | positioned so that both blade surfaces may become parallel, 1st The blade surface of the circular blade 2 is pressed against the blade surface of the second circular blade 3.

  The first rotating shaft 12 and the second rotating shaft 13 rotate in the direction in which the wide sheet A is bitten, and the number of rotations is determined by the material and thickness of the wide sheet A, the first circular blade 2 and the second circular blade 3. What is necessary is just to set arbitrarily by sharpness etc. Moreover, although the rotation speed of the 1st rotating shaft 12 and the 2nd rotating shaft 13 is preferable, it is good also as a relatively different rotation speed in a thin sheet | seat etc. FIG.

  The first circular blade 2 and the second circular blade 3 are arranged so as to wrap and the corresponding ones are in pressure contact with each other, and the two blade surfaces slide when the first rotating shaft 12 and the second rotating shaft 13 rotate. The wide sheet A traveling between the circular blades 2 and 3 is continuously cut by shearing.

  The supply rolls 5a and 5b sandwich and hold the wide sheet A, and the cutter device 4 continuously slits the wide sheet A traveling between the circular blades 2 and 3. The supply rolls 5a and 5b are pressure-adjusted using a roll clamping pressure adjusting mechanism or the like equipped with a known cylinder (not shown).

  The narrow strips A1 and A2 cut by the two circular blades 2 and 3 are sorted up and down every other one, and the narrow strip A1 is taken up by the take-up rolls 6a and 6b, and the other The narrow belt-like sheet A2 is taken down by take-up rolls 7a and 7b. The take-up rolls 6a and 6b and the take-up rolls 7a and 7b are connected to each other, and their positions can be changed up and down by a cylinder mechanism (not shown). The take-up rolls 6a and 6b are moved upward, and the take-up rolls 7a and 7b are moved downward, so that the take-up rolls 6a and 6b and the take-up rolls 7a and 7b are spaced apart in the vertical direction. After the sheets A1 and A2 are cut by the cutter device, the sheets A1 and A2 are more or less distributed up and down.

  As shown in FIG. 3, each of the first and second sheet winding rotary shafts 8a and 8b has a number of sheet winding core rotating tools according to the present invention corresponding to the number of the narrow strip sheets A1 or A2. 15 is mounted, and the narrow belt-like sheet A1 or A2 is wound around each of the plurality of sheet core rotating tools 15. And in each sheet core rotation tool 15, each sheet roll formed by winding the narrow belt-like sheet A1 or A2 has a different winding diameter due to uneven thickness of the wide sheet A. Since the winding tension is different, each sheet core rotating tool 15 includes a tension adjusting mechanism as will be described later.

  In the slitter winder 100, the cutter device 4 composed of the first and second circular blades 2, 3 and the like has a wide sheet (for example, one having a thickness of about 70 micrometers) A that is an original fabric having a plurality of equal widths. It is slit into narrow strip sheets A1 and A2 (for example, about 1.5 mm). The slit strips A1 and A2 are guided by the take-up rolls 6a and 6b and the take-up rolls 7a and 7b separately after the slit, and are respectively guided to the first and second sheet take-up rotary shafts 8a and 8b. It is wound around a sheet core rotating tool 15 that is arranged at an interval and has the same number as the number of narrow strip sheets A1 or A2.

  The guide roll 9d shown in FIG. 1 is displaced according to an increase in the winding diameter of the narrow strip sheets A1 and A2 (sheet roll) wound around the sheet core rotator 15. In this case, the sheet roll is always moved. It is desirable to be located in the vicinity. The narrow strips A1 and A2 are widened between the take-up rolls 6b and 7b and the corresponding guide rolls 9d depending on the size relationship between the width of the narrow-band sheets A1 and A2 and the width of the winding portion of the sheet core rotating tool 15. In this case, an annular groove having a width corresponding to the width of the narrow strips A1 and A2 is formed on the outer peripheral surface of the guide roll 9d. Even when the narrow strip sheets A1 and A2 are not widened as described above, the narrow strip sheets A1 and A2 are narrow on the outer peripheral surface of the guide roll 9d in order to ensure the stability of the position in the width direction. An annular groove having a width corresponding to the width of the width belt-like sheets A1 and A2 may be formed.

  As shown in FIGS. 4 and 5, etc., each of the sheet winding core rotating tools 15 includes a disk body 16 that is rotatably fitted to the outer peripheral surface portions of the sheet winding rotary shafts 8a and 8b, and a disk body. An annular core member 17 engaged with the annular core member 16, an annular contact member 18 abutted against the annular core member 17, and a specific position on the disk body 16 by pressing the annular contact member 18 with an elastic force. And an elastic holding means 19 that allows the annular core member 17 to be attached to and detached from the disk body 16 by applying a pressing force toward the rotation center line direction of the sheet winding rotary shafts 8a and 8b.

  As shown in FIG. 6, the disc body 16 includes an annular outer peripheral surface portion 16b having an annular radial surface portion 16a and an engagement outer peripheral surface portion 16b having a diameter equal to or smaller than the minimum diameter of the annular radial surface portion 16a. Further, it has a center projecting frame portion 16c projecting toward the anti-annular radial surface portion 16a side, and has a circular through hole 16d oriented in a direction perpendicular to the radial surface of the disc body at the center position. At this time, the annular radial surface portion 16a, the locking outer peripheral surface portion 16b, and the center projecting frame portion 16c are arranged concentrically with the circular through hole 16d, and these centers are located at the rotation centers of the sheet winding rotary shafts 8a and 8b. Matched. A large-diameter inner peripheral surface portion a1 and a small-diameter inner peripheral surface portion a2 are formed in the circular through hole 16d, and an annular partition protrusion a3 is formed at the boundary between the large-diameter inner peripheral surface portion a1 and the small-diameter inner peripheral surface portion a2. Is formed. At a plurality of circumferentially specified specific positions on the outer peripheral edge of the annular radial surface portion 16a, a notch b1 having a fingertip size is formed so as to have a depth extending inward in the radial direction and inward of the locking outer peripheral surface portion 16b. Yes.

  A tension adjusting mechanism 20 is incorporated in the disc body 16, and the tension adjusting mechanism 20 tightly fits a cylindrical spacer 21 to the large-diameter inner peripheral surface portion a <b> 1 and rolls to the inner peripheral surface portion of the cylindrical spacer 21. A bearing (for example, a ball bearing or a roller bearing) 22a is fitted, and a similar rolling bearing 22b is also fitted to the inner peripheral surface portion a2 having a small diameter so that the rolling bearing 22a faces the outer side of the former rolling bearing 22a. The disc-shaped spacer 23 is arranged on the inner circumferential surface portion of the disc-shaped spacer 23 so that a portion on the side of the rolling bearing 22a of the annular enlarging portion 23a can be brought into contact with the side surface of the inner ring c1 of the rolling bearing 22a. The spacer 23 is loosely fitted in the circular through hole 16d, and a plurality of male screws 24 with heads are attached to the disc body 16 in order to restrict the annular spacer 23 from escaping from the inside of the circular through hole 16d. The sheet take-up rotary shafts 8a and 8b are rotated at a specific position on the outer peripheral surface of the sheet take-up rotary shafts 8a and 8b. It has an inward projection 23b fitted into a straight groove m formed toward the center line direction.

  Each of the disk bodies 16 is arranged so that the inward projections 23b are fitted in the straight grooves m through the circular through holes 16d on the sheet take-up rotary shafts 8a and 8b, and with respect to the other disk bodies 16. The inner ring c2 of the rolling bearing 22b on one side is in close contact with the annular spacer 23 of the other disc body 16 in parallel and in the direction of the rotation center line of the sheet winding rotary shafts 8a and 8b. Are fitted so as to be movable, and these are brought close to the pair of inner rings c1 and c2 of the rolling bearings 22a and 22b located at the outermost positions on both ends of the row of disk bodies 16 arranged in parallel. A pressing means (fluid pressure cylinder device or the like) 25 that applies a pressing force of an arbitrary size that acts as described above is installed on each of the sheet winding rotary shafts 8a and 8b as one component of the tension adjusting mechanism 20. Is done. When a pressing force of an arbitrary magnitude is generated in the pressing means 25, the inner rings c1 and c2 of the pair of rolling bearings 22a and 22b in each disk body 16 are pressed to a side close to each other with a specific pressing force F. At the same time, the outer rings c3 and c4 of the pair of rolling bearings 22a and 22b oppose the pressing force of the pressing means 25 transmitted via the balls d interposed between the corresponding inner rings c1 and c2. Therefore, the contact force acting state of the inner rings c1, c2, the ball d and the outer rings c3, c4 changes to a state corresponding to the pressing force of the pressing means 25, and the relative rotational resistance of the inner ring c1 and the outer ring c3, And the relative rotational resistance of the inner ring c2 and the outer ring c4 changes to a magnitude corresponding to the pressing force of the pressing means 25.

  The annular core member 17 is an annular circular plate having a specific thickness (for example, about 2 mm) made of a synthetic resin material such as plastic, and one side of the annular core member 16 is in close contact with the annular radial surface portion 16a. The surface is engaged in a state of being closely fitted to the engaging outer peripheral surface portion 16b, and in this engaged state, the outer peripheral surface is a plane parallel to the rotation center line of the sheet winding rotary shafts 8a and 8b. .

  As shown in FIG. 7, the annular contact member 18 includes an annular contact surface 18 a that is in contact with the anti-annular radial surface portion 16 a side of the annular core member 17, and the inner peripheral surface 18 b extends from the center frame. In addition to being slightly larger than the diameter of the portion 16c and chamfering so that no sharp corner is formed at the edge of the inner peripheral surface 18b on the anti-annular radial surface portion 16a side, the outer peripheral edge g2 has a disc body 16. A notch e1 is formed at a position corresponding to the notch b1 with a fingertip size that is smaller than the depth in the radial direction. The annular contact member 18 has a different shape depending on the thickness of the annular core member 17 in the rotational center line direction. For example, when the thickness of the annular core member 17 in the rotational center line direction is about 2 mm, A simple annular circular plate as shown in FIG. 7 is formed, and when the thickness is about 4 mm, the overall thickness is increased according to the thickness of the annular core member 17 as shown in FIG. 8A. A locking outer peripheral surface portion 18c is formed on the side surface on the annular core member 17 side where the inner peripheral surface of the annular core member 17 is closely fitted, and the inner side surface on the anti-annular core member 17 side is formed. By forming an annular inclined surface 18d in the vicinity of the peripheral surface 18b, the length of the inner peripheral surface 18b in the center line direction is made the same as that of the annular contact member 18 shown in FIG. 4, and its thickness is 6 mm. When it is about, as shown in FIG. 8A, it is made different in the following points. That is, the overall thickness is increased according to the thickness of the annular core member 17, and The length in the center line direction of the stop outer peripheral surface portion 18c is made larger than that in the case of FIG. 8A.

  The elastic holding means 19 is formed with an annular groove 16e on the outer peripheral surface of the center overhanging frame portion 16c, and a rubber annular member (for example, an O-ring) 26 is fitted into the inner side of the annular groove 16e. In close contact with the bottom surface of the annular groove 16e, an annular coil spring 27 is tightly fitted on the inner outer side of the annular groove 16e so as to be in close contact with the outermost peripheral edge of the rubber annular member 26 and annular. The outermost peripheral edge of the coil spring 27 is projected outward from the outer peripheral surface of the center overhanging frame 16c.

  Furthermore, the relationship between the outer peripheral edge g1 of the annular radial surface portion 16a of the disc body 16, the outer peripheral edge g2 of the annular contact member 18, and the outer peripheral face g3 of the annular core member 17 is as shown in FIG. The outer peripheral edge g2 protrudes from the outer peripheral surface g3 outward in the radial direction. At this time, it is preferable that the outer peripheral edge g1 and the outer peripheral edge g2 protrude about 0.2 mm to several mm from the outer peripheral surface g3 in order to make the related members compact and light. The relationship is not intended to be limited to the above contents. Basically, it is sufficient if the annular core member 17 can be stably sandwiched between the annular radial surface portion 16a and the annular contact member 18. .

  In order to wind up the narrow belt-like sheets A1 and A2 having a width of, for example, about 1.5 mm by using the sheet winding rotary shafts 8a and 8b in which a plurality of the sheet winding core rotating tools 15 having the above structure are fitted, the sheet core is rotated. The ends of the narrow strips A1 and A2 are fastened to the outer peripheral surface of the annular core member 17 having a thickness of about 2 mm in the tool 15 with a double-sided tape or the like. At this time, it is preferable that the notch b1 of the disc body 16 and the notch e1 of the annular abutting member 18 are positioned so as to face each other, and the notch b1 and the notch e1 thus made have a narrow width. A space for processing for fixing the belt-like sheets A1 and A2 to the outer peripheral surface g3 of the annular core member 17 with fingers is provided to facilitate the processing. Thereafter, the sheet take-up rotary shafts 8a and 8b are rotated by a motor or the like to generate an appropriate amount of pressing force on the pressing means 25 of the tension adjusting mechanism 20, and each part is brought into a steady operating state.

  The pressing force of the pressing means 25 transmits the rotation of the sheet take-up rotary shafts 8a and 8b to the respective disc bodies 16 via the relative rotational resistance of the inner rings c1 and c2 and the outer rings c3 and c4 of the rolling bearings 22a and 22b. As a result, each disk body 16 rotates the corresponding annular core member 17 about the rotation center of the sheet take-up rotary shafts 8a and 8b. By this rotation, each annular core member 17 causes the narrow strips A1 and A2 continuously supplied from the take-up rolls 6a and 6b and the take-up rolls 7a and 7b to roll the inner rings c1 and c2 and the outer rings c3 of the rolling bearings 22a and 22b. It is wound around the outer peripheral surface g3 with a tension corresponding to the relative rotational resistance of c4, for example, at a speed of about 120 m per minute.

  During the winding, the annular winding core member 17 is stably held in the radial direction by the locking outer peripheral surface portion 16b concentrically with the sheet winding rotary shafts 8a and 8b, and elastic holding means 19 by the annular contact member 18. Since the position of the sheet winding rotary shafts 8a and 8b in the rotational center line direction is stably held at a specific position by being pressed by the elastic force of the sheet, even in the initial stage of winding, which has been problematic in the past, The belt-like sheets A1 and A2 are accurately wound without being detached from the outer peripheral surface g3 of the annular core member 17. Further, since the outer peripheral edge g1 of the annular radial surface portion 16a and the outer peripheral edge g2 of the annular contact member 18 protrude outward in the radial direction from the outer peripheral surface g3 of the annular core member 17, particularly in the initial stage of winding. Even if some slack is inevitably generated in the narrow sheet, the outer peripheral edge g1 of the annular radial surface portion 16a and the outer peripheral edge g2 of the annular contact member 18 are immediately before being wound around the outer peripheral face g3 of the annular core member 17. The narrow strip sheets A1 and A2 are guided so as to restrict the lateral strip of the annular core member 17 from coming off to the side, and thus the narrow strip sheets A1 and A2 are guided by the outer peripheral surface of the annular core member 17. It is wound up accurately without deviating from g3.

  When the diameter of the sheet roll wound around each annular core member 17 reaches a specific size, the operation of the cutter device 4 and the rotation of the sheet winding rotary shafts 8a and 8b are stopped, and the pressing means 25 Each disk body 16 and the annular core member 17 are freely rotated by eliminating the pressing force. Under this state, the ends of the narrow strips A1 and A2 wound around the annular core members 17 are separated from the sheets A1 and A2 on the supply side, and fixed to the outer peripheral surface of the sheet roll with a double-sided tape or the like. To do.

  Next, each sheet winding rotary member 15 is removed from each sheet winding rotary shaft 8a, 8b, and the annular contact member 18 is removed from the disc body 16 of each sheet winding rotary member 15, thereby making the annular core member The sheet roll product S shown in FIG. 9 in a state in which the narrow strip sheets A1 and A2 are wound around the outer peripheral surface g3 of 17 is removed. When removing this, a fingertip is put into the notch b1 of the annular radial surface portion 16a to apply a pressing force to the side surface of the annular core member 17, whereby the annular core member 17 and the annular contact member 18 are The pressing force is moved away from the annular radial surface portion 16a while resisting the position holding force of the elastic holding means 19. At the start of the movement, the annular rubber member 26 and the annular coil spring 27 are moved to the annular contact member 18. The annular core member 17 and the annular contact member 18 are moved to the anti-annular radial surface portion 16a side of the elastic holding means 19 by being elastically deformed and reduced in diameter by interfering with the inner peripheral surface 18b. It is taken out of the part 16c.

  When the narrow belt-like sheets A1 and A2 are further wound using the respective sheet core rotating tools 15 removed from the sheet winding rotary shafts 8a and 8b as described above, the narrow belt-like sheets A1 and A2 are wound. Another non-circular core member 17 is fitted on the outer peripheral surface 16b, and then the annular contact member 18 is fitted on the center overhanging frame 16c and pushed against the elasticity of the elastic holding means 19. Then, each sheet winding core rotator 15 in this state is mounted again on each sheet winding rotary shaft 8a, 8b as shown in FIG.

The above embodiment can be modified as follows.
That is, instead of protruding the outer peripheral edge g1 of the annular radial surface portion 16a and the outer peripheral edge g2 of the annular contact member 18 radially outward from the outer peripheral surface g3 of the annular core member 17, as shown in FIG. An annular side wall portion 17a, 17a protruding radially outward may be formed on each side portion of the outer peripheral surface g3 of the annular core member 17. In this case, the narrow side strips A1 and A2 immediately before being wound on the outer peripheral surface g3 of the annular core member 17 are annular side walls so that they do not come off from the outer peripheral surface g3 of the annular core member 17 during the winding. The parts 17a and 17a are continuously guided.

  At this time, as shown in FIG. 11, the annular core member 17 can be directly pressed by the elastic holding means 19 without providing the annular contact member 18. This can also reduce the conventional problems.

It is a side view of the slitter winder with which the sheet core rotation tool concerning the present invention was equipped. It is a front view which shows the cutter apparatus of the said slitter winder. It is a front view which shows the sheet winding rotating shaft periphery of the slitter winder. It is a front view which shows the sheet | seat winding rotating shaft with which the sheet | seat core rotary tool which concerns on this invention was mounted | worn. It is a figure which shows the xx part of FIG. It is sectional drawing which shows the disc body of the sheet | seat core rotary tool which concerns on this invention. It is a figure which shows the state which decomposed | disassembled the sheet | seat core rotary tool which concerns on this invention. It is a figure which shows the modification of the sheet | seat core rotary tool which concerns on this invention. It is a figure which shows the sheet roll product wound up with the sheet | seat core rotary tool which concerns on this invention. It is a figure which shows the modification of the sheet | seat core rotary tool which concerns on this invention. It is a figure which shows the modification of the sheet | seat core rotary tool which concerns on this invention.

Explanation of symbols

8a Sheet winding rotary shaft 8b Sheet winding rotary shaft 16 Disc body 16a Annular radial surface portion 16b Locking outer peripheral surface portion 16c Center projecting frame portion 16e Annular groove 17 Annular winding core member 17a Annular side wall portion 18 Annular contact member 19 Elastic Holding means 26 Annular rubber member 27 Annular coil spring b1 Notch g1 Outer edge g2 Outer edge g3 Outer edge

Claims (6)

  The outer periphery of the sheet take-up rotary shaft is rotatably fitted, has an annular radial surface, and has an outer peripheral surface positioned on the inner side of the annular radial surface, and the outer periphery of the engagement A disc body provided with a center projecting frame portion projecting toward the anti-annular radial surface portion side with respect to the surface portion, one side surface is closely contacted with the annular radial surface portion, and an inner peripheral surface portion is closely fitted to the locking outer peripheral surface portion. An annular core member engaged with the disk body, an annular contact member in close contact with the other side surface of the annular core member, and the annular contact member abutting against the annular radial surface portion. Elastic holding means for holding the position in a pressed state and allowing the annular abutting member to be attached to and detached from the disk body by a pressing force of a specific size or more applied to the annular abutting member; A sheet core engaging and rotating tool characterized by comprising:   The elastic holding means includes an annular groove formed on an outer peripheral surface of the center overhanging frame portion, an annular rubber member fitted to face a bottom surface in the annular groove, and an outermost portion of the annular rubber member. 2. The sheet core engaging rotary tool according to claim 1, comprising an annular coil spring stretched around the outer peripheral portion.   A notch is formed in each of a plurality of places at specific intervals in the circumferential direction of the outer peripheral edge of the annular radial surface portion, and the notch has a size related to the fingertip size and is larger than the locking outer peripheral surface portion. 3. The sheet core engaging rotary tool according to claim 1 or 2, characterized in that it extends to the center side thereof.   The outer peripheral edge of the annular radial surface portion and the outer peripheral edge of the annular contact member protrude from the outer peripheral surface of the annular core member outward in the radial direction. Or the sheet | seat core engagement rotator of 3 description.   The sheet winding core according to claim 1, 2, 3, or 4, wherein the annular winding core member is formed with an annular side wall portion protruding radially outward at each side edge portion of the outer peripheral surface thereof. Engaging rotating tool.   In the sheet core engaging rotating tool, the annular core member is concentrically engaged with the disc body rotatably fitted around the sheet winding rotation axis via the elastic holding means. A sheet core-attached rotating tool characterized in that an annular side wall portion projecting about 0.2 mm to several mm outward in the radial direction is formed at each side edge portion of the outer peripheral surface of the annular core member.

Images