JP5362420B2 - Winding device for belt-shaped sheet material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To stably wind a belt-like sheet material, without generating a clearance between circular arc surfaces of leaf members in a diametrically expansive position of the leaf members, by preventing interference when retreating to a diametrically contractive position from the diametrically expansive position. <P>SOLUTION: This winding device has the leaf members 10 and 20 moved to two positions of the diametrically expansive position X for winding the belt-like sheet material W and the diametrically contractive position Y capable of extracting a winding object Wa of the wound belt-like sheet material W, by positioning the circular arc surface on a virtual cylindrical surface Q arranged so as to be capable of advancing-retreating in the radial direction to a shaft body 1. The respective leaf members 10 and 20 comprise a leaf having the circular arc surface forming a continuous cylindrical surface Qa coincident with the virtual cylindrical surface Q by cooperating between the respective leaf members 10 and 20 in the diametrically expansive position X. An advance-retreat mechanism is provided for retreating the respective leaf members 10 and 20 in order from a large leaf member of a retreat dimension when retreating the respective leaf members 10 and 20 by alternately making the retreat dimension of the respective leaf members 10 and 20 different. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a belt-like sheet material take-up device for making a belt-like sheet material such as paper or film into a take-up roll, and in particular, winds a belt-like sheet material without using a core (core). The present invention relates to a so-called coreless belt-like sheet material take-up device that makes it possible to easily extract a wound material of a belt-like sheet material.

In general, as shown in FIG. 8, for example, there is a slitter device S that cuts a sheet coated with an adhesive on the back surface to make a small volume. In this slitter device S, both sides of the sheet are so-called winding ears. In other words, since it does not become a product, the belt-like sheet material W is wound around a belt-like sheet material winding device T different from the product winding device Sa, and is separately disposed.
Conventionally, as this type of belt-shaped sheet material winding device, for example, a technique disclosed in Japanese Utility Model Laid-Open No. 6-53549 is known.
As shown in FIG. 9, in order to facilitate the disposal of the so-called scrap of the winding ear, for example, it is wound up without using a core such as a paper tube. A shaft body 100 that is rotated about the central axis P by (FIG. 8), and a virtual cylindrical surface Q that is arranged along the circumferential direction of the shaft body 100 and is concentric with the shaft body 100 and larger in diameter than the shaft body 100. , Which is provided so as to be capable of moving back and forth in the radial direction with respect to the shaft body 100 and is advanced so that the circular arc surface 101 is positioned on the virtual cylindrical surface Q and the belt-shaped sheet material W is wound up. The position X (FIG. 9A) and the diameter-reduced position Y (FIG. 9B) that enables extraction of the wound material Wa of the belt-like sheet material W retracted from the diameter-expanded position X and wound. Four leaf members 102 moved to two positions, and And a unillustrated drive unit for advancing and retreating the-safe member 102. In the winding device T, when the leaf member 102 is retracted from the enlarged diameter position X to the reduced diameter position Y by the drive unit, the adjacent leaf members 102 are not interleaved with each other in order to prevent the adjacent leaf members 102 from interfering with each other. Is provided with an interval E.
Then, at the time of winding, the belt-shaped sheet material W is wound up in a state where the leaf member 102 is enlarged at the diameter expansion position X, and after the winding is finished, the leaf member 102 is reduced at the diameter reduction position Y and wound. The wound material Wa can be pulled out without being affected by the tightening.

Japanese Utility Model Publication No. 6-53549

  However, in the conventional belt-shaped sheet material winding device, since the gap E is provided between the arcuate surfaces 101 so as not to interfere with each other when the leaf members 102 are retracted, the belt-shaped sheet material W is provided. As shown in FIG. 9C, the belt-like sheet material W is immersed between the arcuate surfaces 102 due to the influence of the material and thickness of the material, the degree of winding, and the like, and the leaf member 102 is moved to the expanded position X. When the sheet is retracted from the position Y to the reduced diameter position Y, the belt-like sheet material W is sandwiched between the leaf members 102, which may hinder the operation of the leaf member 102, or the wound material Wa of the belt-like sheet material W can be extracted. There were problems such as being lost. In addition, since the wound material Wa of the belt-like sheet material W has an irregular shape, a winding error of the belt-like sheet material W is generated, and there is a problem that the winding may be caused and the winding failure may occur.

  The present invention has been made in view of the above problems, and can prevent interference when retreating from a diameter-enlarged position to a diameter-reduced position. Improves performance by ensuring that no gaps occur and winding the belt-shaped sheet material stably, and that the wound material of the belt-shaped sheet material can be reliably pulled out at the reduced diameter position. It aims at providing the winding apparatus of the strip | belt-shaped sheet material which aimed at.

In order to achieve such an object, a belt-like sheet material winding device according to the present invention includes a shaft body that is rotated around a central axis, and a shaft body that is arranged along a circumferential direction of the shaft body. Concentric and has a circular arc surface along a virtual cylindrical surface having a diameter larger than that of the shaft body, and is provided so as to be movable back and forth in the radial direction with respect to the shaft body, and is moved forward so that the circular arc surface is positioned on the virtual cylindrical surface. Three or more leaf members that are moved to two positions, a diameter-enlarged position where the sheet material is wound up, and a reduced-diameter position that makes it possible to extract the wound material of the belt-like sheet material that is retracted and wound up from the diameter-enlarged position; In the winding device of the belt-like sheet material provided with
Each of the leaf members includes a leaf having an arc surface that forms a continuous cylindrical surface that coincides with the imaginary cylindrical surface at the expanded diameter position, and the leaf members Alternately withdrawing dimensions from the above diameter expansion position to the diameter reduction position,
The leaf members are advanced and retracted, and when the leaf members are retracted, an advance / retreat mechanism for retracting the leaf members in descending order of the retracted dimensions is provided.

  Thereby, when winding a strip | belt-shaped sheet material, a leaf member is located in an enlarged diameter position. When the shaft is rotated in this state, the belt-shaped sheet material is wound around the leaf member. In this case, the leaves of the leaf members are sequentially joined at the diameter-enlarged position, and the circular arc surfaces of the leaves cooperate to form a continuous cylindrical surface that matches the virtual cylindrical surface. For this reason, there is no gap between the leaves as in the conventional case, and the strip sheet material is immersed between the arcuate surfaces due to the material and thickness of the strip sheet material or the tightening condition. A situation in which the belt-like sheet material is sandwiched between the members is prevented. Furthermore, since the arc surface of each leaf jointly forms a continuous cylindrical surface that matches the virtual cylindrical surface, the wound material of the wound belt-shaped sheet material does not become deformed, so Winding errors of the sheet material are unlikely to occur, and a situation such as occurrence of bending and defective winding is prevented, and the belt-shaped sheet material is stably wound.

When the required amount of the belt-shaped sheet material is wound, the wound material of the wound belt-shaped sheet material is extracted. At this time, the leaf member is moved from the enlarged diameter position to the reduced diameter position by the advance / retreat mechanism. In this case, the advancing / retreating mechanism moves each leaf member forward and backward, and also retracts each leaf member in order from the largest withdrawing dimension, so each leaf member interferes when moving from the enlarged diameter position to the reduced diameter position. Therefore, the leaf member can be moved smoothly. Further, in this movement process, a situation in which the belt-like sheet material is sandwiched between the leaf members is surely prevented, so that also in this respect, the leaf members are smoothly moved.
When the leaf member has reached the reduced diameter position, the wound material of the wound belt-like sheet material is extracted. In this case, since the belt-like sheet material is reliably prevented from being sandwiched between the leaf members, the belt-like sheet material is not easily pulled out and is easily pulled out.
When extraction of the wound material is finished, the leaf member is returned from the reduced diameter position to the enlarged diameter position again, and again, the arc surface of each leaf jointly forms a continuous cylindrical surface that matches the virtual cylindrical surface. Used for winding the belt-like sheet material.

  Then, if necessary, the leaf member of the leaf member having a large retracted size is brought into contact with the inner side surface of the side edge of the leaf of the adjacent leaf member having a small retracted size at the diameter expansion position of each leaf member. The contact piece is extended. As a result, the abutting piece at the side edge of the leaf in the leaf member having a large retracted size abuts on the inner side surface of the side edge of the leaf in the adjacent leaf member having a small retracted size. The gap is reliably prevented from being opened, and the situation where the belt-like sheet material is caught between the leaf members is reliably prevented.

More specifically, the belt-like sheet material winding device of the present invention includes a shaft body that is rotated about a central axis, and a line that is arranged along the circumferential direction of the shaft body and is concentric with the shaft body. An arc surface along a virtual cylindrical surface having a diameter larger than that of the shaft body is provided so as to be movable back and forth in the radial direction with respect to the shaft body, and is moved forward so that the circular arc surface is positioned on the virtual cylinder surface and a belt-like sheet material is provided. A leaf member composed of an even number of 4 or more, which is moved to two positions, a diameter-expanding position to be wound and a diameter-reduced position that enables extraction of a wound sheet of a sheet-like sheet that has been retracted and wound from the diameter-expanding position. In a belt-like sheet material winding device comprising:
Each of the leaf members includes a leaf having an arc surface that forms a continuous cylindrical surface that coincides with the virtual cylindrical surface together with the leaf members in the diameter-enlarged position; Comprising a plate-like support extending in the direction,
The leaf members are alternately made to have different withdrawal dimensions from the above-mentioned diameter-expanded position to the diameter-reduced position, and are divided into a group with a large withdrawal dimension and a group with a small withdrawal dimension.
A portion of the shaft body corresponding to at least the support member of the leaf member is formed in a cylindrical shape, and a plurality of guide holes through which the support members of the leaf members are inserted and guided are formed in the cylindrical wall portion. And
Advancing and retreating mechanism for retreating each leaf member forward and backward, and retracting each leaf member first from a group having a large withdrawal dimension among the leaf members,
A rod that can move back and forth along the central axis of the shaft body, and an engaged portion that is provided on the rod member and that is provided on the support member of the leaf member during forward movement or backward movement. An engaging portion for advancing the leaf member by engaging with and engaging with an engaged portion provided on the support member of the leaf member at the other time of forward or backward movement Configured with
When the leaf members are withdrawn, the engagement portions and the engaged portions are engaged with the engaged portions provided on the support members of the group having a large withdrawal size among the leaf members. It is set as the structure formed so that a part might engage previously.
Thereby, the effect | action and effect similar to the above are show | played. Also, the mechanism is relatively simple because the operation of each group is performed by changing the engagement timing between the engaging portion and the engaged portion by dividing into a group with a large withdrawal size and a group with a small withdrawal size. Yes, the operation can be performed reliably.

  Then, if necessary, the leaf member of the leaf member having a large retracted size is brought into contact with the inner side surface of the side edge of the leaf of the adjacent leaf member having a small retracted size at the diameter expansion position of each leaf member. The contact piece is extended. Thus, as described above, the contact piece at the side edge of the leaf in the leaf member having a large retracted size contacts the inner surface of the side edge of the leaf in the adjacent leaf member having a small retracted size. Thus, it is possible to reliably prevent the conventional gap from being opened and to prevent the belt-like sheet material from being caught between the leaf members.

If necessary, the engagement portion is fixed to the rod, and an umbrella-shaped taper member having a predetermined thickness having a conical outer surface centered on the axis of the rod and a conical inner surface parallel to the outer surface. Formed with
The engaged portion is inclined in the same direction as the inclination direction of the taper member and is constituted by an inclined groove through which the taper member is inserted,
An inclined groove having a large withdrawal dimension among the leaf members is formed to have a width substantially equal to the predetermined thickness of the tapered member,
Of the leaf members, a group of inclined grooves having a small retraction dimension is formed to have a width larger than the predetermined thickness by a predetermined clearance.

As a result, when the leaf member is moved from the enlarged diameter position to the reduced diameter position, if the rod is moved, the taper member as the engaging portion moves following the rod. Since the inclined groove as the engaged portion of the small group is formed to have a width larger by a predetermined clearance than the predetermined thickness of the tapered member as the engaging portion, the taper member is swung by the amount of the predetermined clearance, and each leaf member Since the inclined groove as the engaged portion of the group with a large withdrawal dimension is formed to have a width substantially the same as the predetermined thickness of the taper member as the engagement portion, the leaf member of the group with a large withdrawal dimension becomes the taper member. The leaf member is pushed and moved, and the leaf member is withdrawn first from the group with the larger withdrawal size than the group with the smaller withdrawal size.
And if the taper member as an engaging part contact | abuts to the inclination groove | channel as an engaged part of a group with small retraction dimension among each leaf member, the leaf member of this small retraction dimension will also start a movement. Thereafter, when each leaf member reaches the reduced-diameter position, the taper member of the group with a small retracting dimension is positioned so as to overlap the upper side of the taper member of the group with a large retracting dimension. For this reason, in the movement from the enlarged diameter position to the reduced diameter position, the leaf members do not interfere with each other, and therefore the leaf members are smoothly moved. Further, in this movement process, a situation in which the belt-like sheet material is sandwiched between the leaf members is surely prevented, so that also in this respect, the leaf members are smoothly moved.
In addition, since the engaging portion is formed of an umbrella-shaped taper member and the engaged portion is formed of an inclined groove, force is reliably transmitted, and diameter expansion and contraction can be reliably performed.

  Further, if necessary, a plurality of the tapered members are provided in a row on the rod, and a plurality of the inclined grooves are provided on the support members of the leaf members so as to correspond to the respective tapered members. The force is transmitted more reliably, and the diameter can be expanded and contracted reliably.

  Furthermore, as required, the first stopper means for defining the diameter expansion position of the leaf member having a small retracted dimension and the second stopper means for defining the diameter expansion position of the leaf member having a large retracted dimension are provided. Yes. The leaf member is reliably positioned at the enlarged diameter position, and the belt-like sheet material is stably wound.

In this case, if necessary, the first stopper means is inserted through the long hole, a long hole formed through the support of the leaf member and extending in the forward and backward direction of the leaf member, and fixed to the guide hole. The leaf member is constituted by a pin that abuts against the wall surface of the elongated hole at a diameter expansion position and restricts the movement of the leaf member. Positioning is performed reliably.
In this case, if necessary, the second stopper means is extended to the inner side surfaces of both side edges of the leaf in the leaf member with a small retracted dimension and to both side edges of the leaf in the leaf member with a large retracted dimension. The leaf member having a small retracted size at the diameter-enlarged position of each leaf member is constituted by a contact piece that contacts the inner side surface of both side edges of the leaf. Since the leaf is used, the structure can be simplified accordingly.

According to the belt-like sheet material winding device of the present invention, when the belt-like sheet material is wound around the leaf member, the leaves of the leaf members are sequentially joined at the enlarged diameter position, and the circular arc surfaces of the leaves cooperate. Since a continuous cylindrical surface that matches the virtual cylindrical surface is formed, there is no gap between the leaves as in the past, so the material and thickness of the strip-shaped sheet material, or the degree of tightening, etc. Due to the above, it is possible to prevent the belt-like sheet material from being immersed between the arc surfaces and the belt-like sheet material being sandwiched between the leaf members. In addition, since the arc surface of each leaf jointly forms a continuous cylindrical surface that matches the virtual cylindrical surface, the wound material of the wound belt-shaped sheet material is not deformed. The winding error of the sheet material is unlikely to occur, and a situation such as occurrence of bending and defective winding is prevented, and the belt-shaped sheet material can be stably wound. Furthermore, when extracting the wound material of the wound belt-like sheet material, the leaf member is moved from the enlarged diameter position to the reduced diameter position by the advance / retreat mechanism, but the advance / retreat mechanism advances / retracts each leaf member. Since each leaf member is withdrawn in order from a larger withdrawal size, there is no situation where each leaf member interferes in the movement from the enlarged diameter position to the reduced diameter position. Can be done. Further, in this moving process, the situation where the belt-like sheet material is sandwiched between the leaf members is reliably prevented, so that the leaf member can be moved smoothly also in this respect.
And if the leaf member reaches the reduced diameter position, the wound material of the wound belt-like sheet material is pulled out, but the situation where the belt-like sheet material is caught between the leaf members is reliably prevented. The belt-like sheet material does not become difficult to be pulled out and can be easily extracted, and the performance can be greatly improved.

It is a principal part disassembled perspective view which shows the winding apparatus of the strip | belt-shaped sheet material which concerns on embodiment of this invention. It is a figure which shows the winding apparatus of the strip | belt-shaped sheet material which concerns on embodiment of this invention, (a) is sectional drawing in a diameter expansion position, (b) is sectional drawing in a diameter reduction position. It is a figure which shows the winding apparatus of the strip | belt-shaped sheet material which concerns on embodiment of this invention, (a) is X1-X1 sectional view taken on the line in FIG. 2 (a) in an enlarged diameter position, (b) is in an enlarged diameter position. FIG. 3 is a sectional view taken along line X2-X2 in FIG. It is a figure which shows the winding apparatus of the strip | belt-shaped sheet material which concerns on embodiment of this invention, (a) is a Y1-Y1 sectional view taken on the line in FIG. 2 (b) in a diameter reduction position, (b) is in a diameter reduction position. FIG. 3 is a sectional view taken along line Y2-Y2 in FIG. In the winding apparatus of the strip | belt-shaped sheet material which concerns on embodiment of this invention, it is a principal part enlarged view which shows the process from an enlarged diameter position to a reduced diameter position. In the winding apparatus of the strip | belt-shaped sheet | seat material which concerns on embodiment of this invention, it is a principal part enlarged view which shows the process from a diameter reduction position to a diameter expansion position. FIG. 6 is a cross-sectional view showing another example of an actuator together with an operation from an enlarged diameter position to a reduced diameter position in the belt-shaped sheet material winding device according to the embodiment of the present invention. It is a figure which shows an example of the slitter apparatus with which the winding apparatus of the strip | belt-shaped sheet material which concerns on embodiment of this invention is used. It is sectional drawing which shows an example of the winding apparatus of the conventional strip | belt-shaped sheet material with the malfunction.

Hereinafter, based on an accompanying drawing, the winding device of the beltlike sheet material concerning an embodiment of the invention is explained in detail.
1 to 6 show a belt-like sheet material winding device T according to an embodiment of the present invention. As shown in FIG. 8, this belt-shaped sheet material winding device T is a device for winding a belt-shaped sheet material W comprising a so-called winding ear provided in a slitter device S similar to the above. The configuration includes a shaft body 1 that is rotated around a central axis P by a drive unit K (FIG. 8), and is arranged along the circumferential direction of the shaft body 1 and radially with respect to the shaft body 1. Two types of leaf members 10 and 20 that are provided so as to be capable of moving forward and backward and for winding up the belt-like sheet material W, and are advanced and retracted to move the leaf members 10 and 20 forward and backward. The moving mechanism 30 is provided.

The shaft body 1 is cantilevered by a drive unit K (FIG. 8) provided with a drive motor (not shown), and a base end shaft 2 supported by the drive unit K, and one end on the base end shaft 2. Is provided with a cylindrical shaft body 4 attached via a disc-shaped one end plate 3. A disc-shaped other end plate 5 is provided at the other end of the shaft body 4.
Further, as shown in FIG. 3A, the one end plate 3 and the other end plate 5 each have a band shape wound around the leaf members 10 and 20 with a diameter larger than the diameter of a virtual cylindrical surface Q described later. Disc-shaped flanges 6 and 7 that prevent the wound material Wa of the sheet material W from coming off are provided. The flange 7 on the other end plate 5 side is detachably attached to the other end plate 5.

  Each of the two types of leaf members 10, 20 has arcuate surfaces 11, 21 that are concentric with the shaft body 1 and extend along the virtual cylindrical surface Q having a larger diameter than the shaft body 1. In the form of FIG. 2, it is provided so as to be able to advance and retreat in an equiangular direction (45 ° direction), and is expanded so that the arcuate surfaces 11 and 21 are positioned on the virtual cylindrical surface Q and the belt-shaped sheet material W is wound up. (A), FIG. 3, FIG. 5 (a-1) (b-1), FIG. 6 (a-3) (b-3)) and the strip-shaped sheet material retracted from the enlarged diameter position X and wound up Reduced diameter position Y (FIG. 2 (b), FIG. 4, FIG. 6 (a-3) (b-3), FIG. 6 (a-1) (b-1) ) 2 position.

And each leaf member 10 and 20 has the circular arc surface 11 and 21 which forms the continuous cylindrical surface Qa in which each leaf member 10 and 20 cooperates with the virtual cylindrical surface Q in the diameter expansion position X jointly. , 22 and rectangular plate-like supports 13, 23 projecting from the back surfaces of the leaves 12, 22 and extending in the longitudinal direction. In each leaf member 10, 20, the circumferential lengths of the arc surfaces 11, 21 of the leaves 12, 22 are set to the same dimension, and the longitudinal length, radial length, and thickness of the supports 13, 23 are mutually equal. The same dimensions are set.
Further, the leaf members 10 and 20 are alternately made to have different withdrawal dimensions from the enlarged diameter position X to the reduced diameter position Y, so that a group with a larger withdrawal dimension (a group of three leaf members 10) and a withdrawal dimension. It is divided into two groups, a small group (a group of three leaf members 20). That is, the two types of leaf members 10 and 20 are grouped by type.
Further, as shown in FIG. 2, each leaf member is arranged on the side end edge of the leaf 12 in the leaf member 10 having a large retracted dimension on the inner side surface 24 of the side edge of the leaf 22 in the adjacent leaf member 20 having a small retracted dimension. An abutting piece 14 that abuts at the diameter expansion positions X of 10 and 20 is extended.

  On the other hand, the shaft body 4 of the shaft body 1 is formed in a cylindrical shape, and the length of the cylindrical shaft body 4 is slightly longer than the longitudinal length of the supports 13 and 23 of the leaf members 10 and 20. Is set. Thereby, the site | part corresponding to the support bodies 13 and 23 of the leaf members 10 and 20 of the shaft body 1 is formed in a cylindrical shape. A plurality of (eight in the embodiment) guide holes into which the support members 13 and 23 of the leaf members 10 and 20 are inserted and guided in the wall portion of the cylindrical shaft body 4 of the shaft body 1. 15 is formed.

  The advancing / retreating mechanism 30 moves the leaf members 10 and 20 forward and backward, and when the leaf members 10 and 20 are retracted, a group (a group of three leaf members 10) having a large retracting dimension among the leaf members 10 and 20. ) First. Specifically, the advancing / retracting mechanism 30 includes a rod 31 that can move back and forth along the central axis P of the shaft body 4 and one of the forward and backward movements provided on the rod 31 (see FIG. 3 in the embodiment). Engaged portions 17 provided on the support members 13 and 23 of the leaf members 10 and 20 at the time of advance shown in FIGS. 5A-1 and 5B-1 and FIGS. 6A-3 and 6B-3. , 27 and the leaf members 10 and 20 are advanced, and at the other time during forward movement and backward movement (in the embodiment, FIGS. 4, 5 (a-3), (b-3) and 6 ( a-1) engaging at engaged portions 17 and 27 provided on the supports 13 and 23 of the leaf members 10 and 20 to retract the leaf members 10 and 20 at the time of retreat shown in (b-1) And a joint portion 32. The rod 31 is slidably inserted into sliding holes 33 and 34 provided in the one end plate 3 and the other end plate 5 and supported so as to be movable back and forth.

The engaging portion 32 and the engaged portions 17 and 27 are support members of a group (a group of three leaf members 10) having a large withdrawal size among the leaf members 10 and 20 when the leaf members 10 and 20 are retracted. The engaging portion 32 provided on the rod 31 is first engaged with the engaged portion 17 provided on 13. Specifically, the engaging portion 32 is fixed to the rod 31 and has a conical outer surface 35a centered on the axis of the rod 31, and a conical inner surface 35b parallel to the outer surface 35a. A tapered member 35 is formed. The engaged portions 17 and 27 are inclined grooves 18 and 28 that are inclined in the same direction as the inclination direction of the taper member 35 and through which the taper member 35 is inserted. As shown in FIG. 1, the taper members 35 are provided in a plurality of rows on the rod 31, and the inclined grooves 18, 28 correspond to the respective taper members 35, the support members 13 of the leaf members 10, 20, 23 are provided in plural. The force is transmitted more reliably, and the diameter can be expanded and contracted reliably.
In addition, the inclined groove 18 of the group (group of three leaf members 10) having a large retraction dimension among the leaf members 10 and 20 has a predetermined thickness D of the taper member 35 as shown in FIG. In contrast, the inclined groove 28 of the group (small group of three leaf members 20) having a small retracted dimension among the leaf members 10 and 20 is formed by a predetermined clearance C from the predetermined thickness D. It is formed with a large width. As shown in FIGS. 5 (a-1) and 6 (a-3), the inclined groove 28 has a clearance C provided on the inner surface 35b side of the taper member 35 at the enlarged diameter position of the leaf member 20. That is, the rod 31 is formed so as to be provided on the moving direction side in which the leaf member 20 is retracted. In other words, the inclined groove 28 contacts the inclined groove 28 by a predetermined moving dimension (clearance C) when the taper member 35 moves in the direction in which the leaf member 20 is moved from the diameter expansion position X to the diameter reduction position Y. It is formed so as to be in a positional relationship where it is not swung.

  As shown in FIGS. 3 and 4, the advance / retreat mechanism 30 includes an actuator 40 that moves the rod 31 back and forth. The actuator 40 is composed of an air cylinder device 43 including a cylinder 41 provided on the other end plate 5 and a piston 42 that slides on the cylinder 41 and has a tip connected to the rod 31. In the cylinder 41 of the air cylinder device 43, air is blown into the cylinder 41 chamber opposite to the rod 31 of the piston 42 and the rod 31 is advanced via the piston 42. A retraction air supply port 45 that is blown into the cylinder 41 chamber on the rod 31 side and retracts the rod 31 via the piston 42 is formed. The supply of air to the forward air supply port 44 and the reverse air supply port 45 is performed using an air gun (not shown).

Further, the present apparatus includes a first stopper means 50 for defining the enlarged diameter position X of the leaf member 20 having a small retracted dimension and a second stopper means for defining the expanded diameter position X of the leaf member 10 having a large retracted dimension. Is provided.
The first stopper means 50 is formed through the support 23 of the leaf member 20 and extends in the forward and backward direction of the leaf member 20. The first stopper means 50 is fixed to the guide hole 15 and is inserted into the long hole 51 and expands the leaf member 20. The pin 52 is configured to contact the wall surface of the long hole 51 at the radial position X and restrict the movement of the leaf member 20.

  Further, the second stopper means 53 extends on both side edge inner side surfaces 24 of the leaf 22 in the leaf member 20 having a small retracted dimension and on both side edges of the leaf 12 in the leaf member 10 having a large retracted dimension. , 20 and the abutting piece 14 that abuts against the inner side surfaces 24 of both side edges of the leaf 22 of the leaf member 20 with a small retracted dimension at the diameter expansion position X.

  Therefore, according to the winding device T for the strip-shaped sheet material W according to the embodiment of the present invention, when winding the strip-shaped sheet material W, as shown in FIGS. 20 is positioned at the diameter expansion position X. In this diameter expansion position X, since the pin 52 is in contact with the wall surface of the long hole 51 in the first stopper means 50, the diameter expansion position X of the leaf member 20 having a small retracted dimension is defined and positioned. In the two stopper means 53, the abutting pieces 14 extending from the both side edges of the leaf 12 of the leaf member 10 having a large retracting size are in contact with the inner side surfaces 24 of the both ends of the leaf 22 of the leaf member 20 having a small retracting size. Therefore, the diameter expansion position X of the leaf member 10 having a large retracted dimension is defined and positioned. When the shaft body 1 is rotated in this state, the belt-like sheet material W is wound around the leaf members 10 and 20.

  In this case, the leaves 12 and 22 of the leaf members 10 and 20 are sequentially joined at the diameter expansion position X, and the arc surfaces 11 and 21 of the leaves 12 and 22 jointly coincide with the virtual cylindrical surface Q. The cylindrical surface Qa is formed. For this reason, there is no gap between the leaves 12 and 22 as in the prior art. Therefore, the belt-like sheet material W is affected by the material and thickness of the belt-like sheet material W, the degree of winding, or the like. A situation in which the sheet material W is immersed and the belt-like sheet material W is sandwiched between the leaf members 10 and 20 is prevented. Further, since the contact piece 14 on the side edge of the leaf 12 in the leaf member 10 having a large retracted size is in contact with the side surface 24 on the side edge of the leaf 22 in the adjacent leaf member 20 having a small retracted size, A conventional gap between the leaves 12 and 22 is reliably prevented, and a situation in which the belt-like sheet material W is caught between the leaf members 10 and 20 is reliably prevented. Furthermore, since the circular arc surfaces 11 and 21 of the leaves 12 and 22 jointly form a continuous cylindrical surface Qa that matches the virtual cylindrical surface Q, the wound material Wa of the wound belt-like sheet material W is obtained. Therefore, the belt-like sheet material W is less likely to be wound up, and the occurrence of bending and the occurrence of winding failure is prevented, so that the belt-like sheet material W can be wound stably. .

  When the belt-shaped sheet material W is wound up by a required amount, the wound material Wa of the wound belt-shaped sheet material W is extracted. In this case, as shown in FIG. 3, first, the flange 7 on the other end plate 5 side is removed, and the tip of the air gun is inserted into the retreating air supply port 45 provided in the cylinder 41 of the air cylinder device 43 as the actuator 40. Blow in air. As a result, air is blown into the cylinder 41 chamber of the piston 42 on the rod 31 side, and the rod 31 is retracted via the piston 42. In this process, as shown in FIG. 5, the taper member 35 as the engaging portion 32 moves (moves toward the right side in the figure) following the rod 31, but FIG. -2), the inclined grooves 18 and 28 as the engaged portions 17 and 27 of the group (small group of three leaf members 20) having a small retraction dimension among the leaf members 10 and 20 are the engaging portions 32. The taper member 35 is formed to have a width larger by a predetermined clearance C than the predetermined thickness D of the taper member 35. As a result, the taper member 35 is swung away by the predetermined clearance C, while FIGS. As shown in 2), the inclined groove 18 as the engaged portion 17 of the group (group of three leaf members 10) having a large retraction dimension among the leaf members 10 and 20 is the tapered member 35 as the engaging portion 32. About the same thickness D as Since the leaf members 10 of the group (group of three leaf members 10) having a large withdrawal dimension are pushed by the taper member 35 and moved, the group having a small withdrawal dimension among the leaf members 10 and 20 is formed. The group having the larger withdrawal size (the group of the three leaf members 10) than the group of the three leaf members 20 is withdrawn first.

  And as shown to Fig.5 (a-2), it engages with the inclination groove | channel 28 as the to-be-engaged part 27 of the group (group of three leaf members 20) with a small retraction dimension among the leaf members 10 and 20. When the taper member 35 serving as the portion 32 abuts, the leaf members 20 of the group with a small retracted dimension (group of three leaf members 20) also start to move, and FIG. 2 (a), FIG. 4, FIG. -3) As shown in (b-3), when the diameter reduction position Y is reached, the retracted dimension is small so as to overlap with the upper side of the taper member 35 of the large retracted group (group of three leaf members 10). The leaf members 20 of a group (a group of three leaf members 20) come to be positioned. For this reason, in the movement from the diameter-expanded position X to the diameter-reduced position Y, the leaf members 10 and 20 do not interfere with each other, so that the leaf members 10 and 20 move smoothly. Further, in this movement process, the situation in which the belt-like sheet material W is sandwiched between the leaf members 10 and 20 is reliably prevented, so that the leaf members 10 and 20 are smoothly moved also in this respect.

  When the leaf members 10 and 20 reach the reduced diameter position Y, the wound material Wa of the wound belt-like sheet material W is extracted as shown in FIG. In this case, since the situation where the belt-like sheet material W is sandwiched between the leaf members 10 and 20 is reliably prevented, the belt-like sheet material W is not easily pulled out and is easily pulled out.

  When extraction of the wound material Wa is completed, the leaf members 10 and 20 are returned from the reduced diameter position Y to the expanded diameter position X again. In this case, as shown in FIG. 6, first, the tip of the air gun is applied to the forward air supply port 44 provided in the cylinder 41 of the air cylinder device 43 as the actuator 40 to blow in air. As a result, air is blown into the cylinder 41 chamber on the opposite side of the rod 31 of the piston 42 and the rod 31 is advanced through the piston 42. In this process, as shown in FIG. 6, the taper member 35 as the engaging portion 32 moves (moves toward the left side in the drawing) following the rod 31, but FIG. As shown in 2), the inclined groove 28 as the engaged portion 27 of the group with a small retraction dimension (the group of three leaf members 20) of the leaf members 10 and 20 is the tapered member 35 as the engaging portion 32. As shown in FIGS. 6 (b-1) and 6 (b-2), the taper member 35 is swung by an amount corresponding to the predetermined clearance C. In addition, the inclined groove 18 as the engaged portion 17 of the group (group of three leaf members 10) having a large retracted dimension among the leaf members 10 and 20 has a predetermined thickness D of the taper member 35 as the engaging portion 32. Are formed to be approximately the same width as Because there, leaf members 10 of the large group of exit dimensions (three groups of leaf members 10) is moved by being pushed by the tapered member 35. In this movement process, the abutting pieces 14 extending from both side edges of the leaf 12 of the leaf member 10 having a large retracting size are in contact with the inner side surfaces 24 of both ends of the leaf 22 of the leaf member 20 having a small retracting size. The leaf member 20 having a small size is pushed by the leaf member 10 having a large retracted size due to the contact of the contact piece 14, whereby the leaf member 10 having a large retracted size and the leaf member 20 having a small retracted size are formed. It moves at the same time.

  And as shown to Fig.6 (a-2), it engages with the inclination groove | channel 28 as the to-be-engaged part 27 of the group (group of the three leaf members 20) with a small retraction dimension among the leaf members 10 and 20. FIG. When the taper member 35 as the portion 32 abuts, the leaf members 20 of the group with a small retracted dimension (group of three leaf members 20) are pushed and moved by the corresponding taper member 35, and FIG. ), FIG. 3, FIG. 6 (a-3) and (b-3), when the diameter-expanded position X is reached, the pin 52 comes into contact with the wall surface of the long hole 51 in the first stopper means 50, and then retracts. The diameter expansion position X of the leaf member 20 having a small size is defined and positioned, and the leaf portion having a large withdrawal size is formed on the inner side surfaces 24 on both side edges of the leaf 22 in the leaf member 20 having a small withdrawal size. 10, the abutting pieces 14 extending on both side edges of the leaf 12 are in contact with each other, so that the diameter expansion position X of the leaf member 10 having a large retracted dimension is defined and positioned. The leaves 12 and 22 are sequentially joined at the diameter expansion position X, and again, the circular arc surfaces 11 and 21 of the leaves 12 and 22 jointly form a continuous cylindrical surface Qa that matches the virtual cylindrical surface Q. Thereafter, the flange 7 on the other end plate 5 side is attached, and the belt-like sheet material W is taken up again.

  FIG. 7 shows another example of the actuator in the winding device T for the belt-like sheet material W according to the embodiment of the present invention. The actuator 60 is of a manual type, and includes a cup-shaped base member 61 provided on the other end plate 5, and a cup-shaped mounting member 63 attached to the end of the rod 31 via a bearing 62. A male screw 65 formed on the bottom wall of the base member 61 and screwed into a female screw 64 coaxial with the axis of the rod 31 and having one end fixed to the bottom wall of the mounting member 63 and attached to the other end of the male screw 65 And a handle 66 for rotating the male screw 65 to advance and retract relative to the female screw 64 and to advance and retract the rod 31 via the mounting member 63. This actuator 60 also exhibits the same operations and effects as described above.

In the above embodiment, the actuators 40 and 60 are not limited to those described above, and may be appropriately changed such as hydraulic driving or motor driving. Further, in the above embodiment, the number of leaf members 10, 20 is not limited to those described above, permissible, such are appropriately changed.

T belt-shaped sheet material winding device S slitter device W belt-shaped sheet material Wa wound material K drive unit P central shaft 1 shaft body 2 base shaft 3 one end plate 4 shaft body 5 other end plate 6, 7 flange 10, 20 Leaf member Q Virtual cylindrical surface Qa Cylindrical surface 11, 21 Arc surface X Expanded position Y Reduced position 12, 22 Leaf 13, 23 Support 14 Contact piece 15 Guide hole 17, 27 Engaged portion 18, 28 Inclined Groove 24 Side edge inner surface 30 Advance / retract mechanism 31 Rod 32 Engaging portion 33, 34 Sliding hole 35 Taper member D Predetermined thickness C Predetermined clearance 40 Actuator 43 Air cylinder device 50 First stopper means 51 Long hole 52 Pin 53 Second stopper means 60 Actuator

Claims (6)

A shaft body that is rotated about a central axis, and an arc surface that is arranged along the circumferential direction of the shaft body and that is concentric with the shaft body and extends along a virtual cylindrical surface having a larger diameter than the shaft body. The radial position is provided on the virtual cylindrical surface so as to move forward and backward in the radial direction with respect to the body, and an arcuate surface is positioned on the virtual cylindrical surface, and the belt-shaped sheet material is wound up and retracted from the expanded position. In the winding device for the belt-like sheet material, comprising a leaf member composed of an even number of 4 or more, which is moved to two positions of the reduced diameter position that enables extraction of the wound material of the belt-like sheet material,
Each of the leaf members includes a leaf having an arc surface that forms a continuous cylindrical surface that coincides with the virtual cylindrical surface together with the leaf members in the diameter-enlarged position; Comprising a plate-like support extending in the direction,
The leaf members are alternately made to have different withdrawal dimensions from the above-mentioned diameter-expanded position to the diameter-reduced position, and are divided into a group with a large withdrawal dimension and a group with a small withdrawal dimension.
A portion of the shaft body corresponding to at least the support member of the leaf member is formed in a cylindrical shape, and a plurality of guide holes through which the support members of the leaf members are inserted and guided are formed in the cylindrical wall portion. And
Advancing and retreating mechanism for retreating each leaf member forward and backward, and retracting each leaf member first from a group having a large withdrawal dimension among the leaf members,
A rod that can move back and forth along the central axis of the shaft body, and an engaged portion that is provided on the rod member and that is provided on the support member of the leaf member during forward movement or backward movement. An engaging portion for advancing the leaf member by engaging with and engaging with an engaged portion provided on the support member of the leaf member at the other time of forward or backward movement Configured with
When the leaf members are withdrawn, the engagement portions and the engaged portions are engaged with the engaged portions provided on the support members of the group having a large withdrawal size among the leaf members. Forming the part to engage first,
The engaging portion is formed of an umbrella-shaped taper member having a predetermined thickness, which is fixed to the rod and has a conical outer surface centered on the axis of the rod and a conical inner surface parallel to the outer surface,
The engaged portion is inclined in the same direction as the inclination direction of the taper member and is constituted by an inclined groove through which the taper member is inserted,
An inclined groove having a large withdrawal dimension among the leaf members is formed to have a width substantially equal to the predetermined thickness of the tapered member,
The belt-like sheet material winding device according to claim 1, wherein the inclined grooves of the small retraction dimension among the leaf members are formed to have a width larger than the predetermined thickness by a predetermined clearance . An abutting piece that abuts on the inner side surface of the side edge of the leaf of the leaf member adjacent to the leaf member having a small withdrawal dimension is extended to the side edge of the leaf of the leaf member having a large withdrawal size. The belt-like sheet material winding device according to claim 1 . 3. The belt-like sheet according to claim 1, wherein the taper members are provided in a plurality of rows on the rod, and a plurality of the inclined grooves are provided on the support members of the leaf members so as to correspond to the taper members. Material winding device. Claim, characterized in that provided a first stopper means for defining the enlarged position of the small leaf members of the exit dimension, and a second stopper means for defining the enlarged position of large leaf members of the exit dimension 1 The winding apparatus of the strip | belt-shaped sheet material in any one of thru | or 3 . The first stopper means extends through the leaf member support and extends in the forward / backward direction of the leaf member, and is fixed to the guide hole and inserted through the elongated hole, and the diameter expansion position of the leaf member 5. The belt-like sheet material winding device according to claim 4 , wherein the belt-like sheet material winding device comprises a pin that abuts against the wall surface of the elongated hole to restrict movement of the leaf member. The second stopper means is extended to the inner side surfaces of both side edges of the leaf of the leaf member with a small retracted dimension and the both side edges of the leaf of the leaf member with a large retracted dimension, The belt-shaped sheet material winding device according to claim 4 or 5, wherein the leaf member having a small retracted dimension is configured to include a contact piece that contacts the inner side surfaces of both side edges of the leaf.

Images