JP3978671B2 - Sheet split winding device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention divides an original belt-like sheet such as a plastic film or paper into a number of required narrow belt-like sheets with a slitter, and distributes the divided belt-like sheets to upper and lower or front and rear winding positions to make paper tubes, etc. The present invention relates to a sheet split winding device that winds around a hollow core of the sheet.
[0002]
[Prior art]
In the sheet split winding device as described above, in order to wind the strip-shaped sheet divided by the slitter around the individual cores, both ends of each core are respectively provided at the tip portions of a pair of winding arms. Each core is held by a core chuck, and each core is driven to rotate individually, and each core is passed through and held by a winding shaft longer than the full width of the original belt-like sheet supplied to the slitter. Some types rotate the shaft.
[0003]
In the former case, two winding arms adjacent to each other must be retracted back to back between the belt-like sheets distributed to the winding position, and when the original belt-like sheet is divided into many narrow belt-like sheets by a slitter. Since the gap between the belt-like sheets distributed to the winding position becomes narrow and the take-up arm cannot be retracted, the former should be used when winding the belt-like sheet into a plurality of narrow belt-like sheets. Cannot be used.
[0004]
On the other hand, in the latter, a large number of cores can be penetrated and held by one winding shaft, so that the belt-like sheet can be divided into small widths and wound around the individual cores all at once. However, in the latter, since the winding shaft is rotationally driven while being supported at both ends, the inner diameter of the winding core mounted on the winding shaft is standardized and constant (usually 3 inches). Since the radius of the winding cannot be increased, if the length of the winding shaft is increased, the winding shaft is easily bent. The winding shaft vibrates during winding of the belt-like sheet, or the end surface of the winding roll is caused by the bending. This causes problems such as tilting and winding deviation, resulting in defective winding rolls. Therefore, the latter is used when the width of the original belt-like sheet supplied to the slitter is relatively narrow. For example, in the latter case, the maximum width of the original belt-like sheet is usually about 1600 millimeters when the winding is performed at a winding speed of 400 meters per minute using a winding shaft for a core having an inner diameter of 3 inches.
[0005]
If the width of the original belt-like sheet to be processed into a narrow winding roll exceeds the width that can be processed by the latter, the original belt-like sheet is divided by the former into a width that can be processed by the latter. Since the winding roll must be further divided into small pieces by the latter, the former and the latter of different types are only required as equipment for obtaining the narrow winding roll. It is very troublesome. Furthermore, the ear loss is doubled by making both ends of the original belt-shaped sheet in the former and the latter. Therefore, in the sheet split winding device of the type that supports the core through the winding shaft longer than the length corresponding to the width of the original belt-like sheet supplied to the slitter, the maximum width of the original belt-like sheet that can be processed is It is required to be as large as possible. Therefore, in the conventional sheet splitting and winding device for meeting this requirement, the length of the winding shaft is increased according to the width of the original belt-like sheet, and the center of the winding shaft is provided by a pair of rollers provided at the upper end of the arm. In some cases, the outer periphery of the winding shaft is supported from below so that the deflection of the winding shaft is kept small (see Japanese Patent Laid-Open No. 5-246487).
[0006]
[Problems to be solved by the invention]
However, the conventional sheet split winding device has the following problems. That is, the winding shaft has not only the shaft body, but also has a mechanism for restraining the winding core from moving in the axial direction relative to the shaft body during winding and transmitting the rotation of the shaft body to the winding core. In order to provide the mechanism, it is necessary to accurately process the shaft main body from a hollow bar member to a predetermined outer diameter and inner diameter with a lathe or the like. However, if the length of the reel becomes longer, the hollow rod member will be bent during processing, and the machining accuracy will deteriorate, and the reel itself will not achieve the desired performance. Therefore, there is a limit, and the width of the strip-shaped sheet that can be processed cannot be made too wide. For example, recently, there are many cases where it is often required to wind an original belt-like sheet having a width of 2.5 meters or more on a core having an inner diameter of 3 inches while dividing it at a high speed, but such a request cannot be met. . In the case of a winding shaft with a core having an inner diameter of 3 inches, only about 2 meters can be obtained from the viewpoint of bending strength, processing accuracy and processing cost of the winding shaft. This is because only about 5 meters can be obtained.
[0007]
In addition, the outer periphery of the winding shaft is supported by a pair of rollers from below in the vicinity of the center of the winding shaft so that the winding shaft does not bend downward, but the winding shaft is not constrained so as not to float from the roller. For this reason, when the winding speed is further increased, the winding shaft vibrates and a high-quality winding roll cannot be obtained. Further, the surface of the winding shaft and the roller may rub against each other at the portion supported by the pair of rollers, and powder may come out and adhere to the take-up roll.
[0008]
In addition, if the length of the winding shaft is increased, the length of the winding shaft that is removed when the winding shaft is removed from the winding roll becomes longer, so the time for removing the winding roll from the winding shaft becomes longer. The time from when the roll is completed and the winding is stopped until the winding is resumed becomes longer. This hinders the improvement in productivity (operating rate) that is required recently. In addition, since the distance that the inner peripheral surface of the core and the outer peripheral surface of the winding shaft are rubbed is increased, the inner peripheral surface of the core is easily scratched, core scraps are easily generated, and the core scraps are wound on the winding roll. In addition to being easily attached, it may cause trouble if the core needs to be reused.
[0009]
In view of the above-described problems, the present invention divides an original belt-like sheet into a plurality of belt-like sheets having a plurality of required widths with a slitter, and distributes and winds the divided belt-like sheets to a plurality of winding positions. In the take-up device, it is possible to divide and wind up an original strip-like sheet wider than the conventional one into a number of narrow strip-like sheets, and to increase the take-up speed and improve the operating rate. It is an issue.
[0010]
[Means for Solving the Problems]
In the present invention, four winding shafts that can be supported by penetrating a hollow core for winding the divided strip-shaped sheet are individually rotated and cantilevered by a winding shaft end holding device. Hold and place two reels at the upper and lower or front and rear winding positions so that their free ends face each other, and slidably mount the reel end holding device on a guide member provided parallel to the axis of the reel axis An effective length equivalent to one half of the sum of the maximum division width of the original belt-like sheet by the slitter and the effective width of the original belt-like sheet is set to at least one of the four winding shafts. Two free end holders that can constrain and hold the free ends of the winding shafts concentrically on a support arm that can be repositioned in the winding axis central axis direction at each winding position. The winding shaft is rotatably mounted, and the free end of the winding shaft is The winding shaft end holding device is driven along the guide member so as to be selectively disposed at a return position that engages with the end holder and a drawing position where the winding shaft is pulled out from the winding position. A drive mechanism capable of moving the winding core on the winding shaft to prevent the winding core penetrating the winding shaft from moving together with the winding shaft when the winding shaft moves to the extraction position. A winding core movement blocking body capable of engaging with the end surface on the side opposite to the free end of the winding core farthest from the free end of the winding shaft is provided.
[0011]
Here, the effective width of the original belt-like sheet refers to the width of the remaining portion of the original belt-like sheet that has been trimmed with a slitter, and is equivalent to the sum of the widths of the belt-like sheets that are simultaneously divided by the slitter. . The effective length of the winding axis refers to the length of the portion where the divided strip sheet can be wound. That is, the length of the portion where the winding cores at both ends of the winding shaft are not mounted is not included in the effective length of the winding shaft.
[0012]
According to the present invention, during winding of the belt-like sheet, the free end holding tool holds the free end of the winding shaft rotatably supported in a cantilever shape by the winding shaft end holding device and constrains it concentrically. To do. In other words, the free end holding tool concentrically holds the free end of the winding shaft and constrains it in the direction of all rotation angles around the rotation center of the free end holding tool. Therefore, the winding shaft can be rotationally driven in a state where both ends are securely supported. When removing the wound winding roll from the winding shaft, the winding shaft end holding device can be driven all at once in the direction away from the free end holder by the drive mechanism, and at this time, the two winding shafts at each winding position Since the free ends are opposed to each other, they can be retracted simultaneously in opposite directions. Further, since two winding shafts are provided for each winding position, it is sufficient that each winding shaft has a short length. In particular, as the number of divisions by the slitter is large and the maximum division width is small, the effective length of the winding shaft can be shortened to nearly half the effective width of the original belt-like sheet. Moreover, during winding, each winding shaft can be supported at both ends by the winding shaft end holding device and the support arm, and accordingly, when each winding shaft is provided with one winding shaft for each winding position as in the conventional case, Compared to this, it becomes much smaller and the drawing length becomes shorter.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
The sheet split winding device according to the present invention is a sheet in which an original belt-like sheet is divided into a plurality of belt-like sheets having a plurality of required widths with a slitter, and the divided belt-like sheets are alternately distributed to the upper and lower or front and rear winding positions. 4 is a split winding device having four winding shafts capable of penetrating and holding a hollow core for winding the strip-like sheet, and the four winding shafts being rotatable and cantilevered Each of the four winding shafts so that the free ends thereof face each other at every winding position. The winding end holding device is slidably mounted on a guide member provided in parallel with the central axis direction of the winding axis, and at least one winding axis of the four winding axes is attached by the slitter. When the original strip is divided into odd strips And having an effective length equivalent to one half of the sum of the maximum division width and the effective width of the belt-like sheet, and the free ends of the winding shafts can be constrained and held respectively. A free end holding tool, a support arm provided so as to be replaceable in the winding axis central axis direction at each winding position, and the free end holding tool being rotatably mounted two by two, and the winding shaft. The winding shaft end holding device is disposed along the guide member so as to be selectively disposed at a return position where the shaft free end engages with the free end holding tool and a drawing position where the shaft free end is pulled out from the winding position. A winding mechanism that can be engaged with the end surface of the winding core that is farthest from the free end of the winding shaft among the winding core that passes through the winding shaft. And a blocking body.
[0014]
In the present invention, in order to make the free end holder simple in structure and to automatically hold and release the free end of the winding shaft by the free end holder, the free end of the winding shaft is tapered. Protrusions may be provided concentrically, and the free end holder may have a hole into which the protrusion is fitted. Further, a tapered hole may be provided concentrically at the free end of the winding shaft, and the free end holding tool may have a protrusion that fits into the hole.
[0015]
Moreover, in order to quickly carry out the take-up roll from the take-up position to the front of the take-up position and to reduce the space for carrying out the take-up roll in front of the take-up position, the take-up roll released from the take-up shaft is placed. A winding roll receiver provided corresponding to each winding shaft, and a vertical shaft body provided so as to be able to move up and down near the winding core movement blocking body, which rotatably holds one end of the winding roll receiver. It is good to have.
[0016]
Further, in order to simplify the four winding shafts, a means for rotationally driving the four winding shafts is mounted on a winding shaft end holding device that supports one of the two winding shafts facing the free ends. The two winding shafts that can couple the two winding shafts and the two free end holders to each other, the transmission device that transmits the rotation of the winding motor to the one winding shaft, and the two winding shafts. It is preferable to include a clutch mechanism and a coupling means between the two free end holders.
[0017]
【Example】
FIG. 1 is a side view of a sheet split winding device according to an embodiment of the present invention, and FIG. 2 is a front view of the sheet split winding device of FIG. 1 viewed from the front of the winding position in the direction of arrow A1. The sheet split winding device guides the original strip sheet S0 to the slitter 1 and splits the strip strip S into a plurality of required strip sheets S with the slitter 1 alternately at upper and lower winding positions A, 4 winding shafts 2 that are distributed and wound into B, and can pass through and hold a hollow core C for winding the respective strip-shaped sheets S as shown in FIG. A winding shaft end holding device 3 that individually holds four winding shafts 2 in a rotatable and cantilevered manner, and a winding motor 4 for rotationally driving the winding shaft 2 are provided.
[0018]
The four winding shafts 2 are arranged so that the two free ends face each other at each winding position A, B, and the winding shaft end holding device 3 is provided in parallel to the central axis of the winding shaft 2, respectively. The guide member 5 is slidably mounted. The central axis of the winding shaft 2 extends parallel to the width direction of the original belt-like sheet S0.
[0019]
Further, this sheet split winding device has a free end holder 6 capable of constraining and holding the free ends of the winding shaft 2 concentrically, and the position of the winding shaft 2 is changed in the winding axis central axis direction for each of the winding positions A and B. 2 and a support arm 7 rotatably mounted back-to-back with two free end holders 6 and a winding shaft 2 whose free ends engage with the free end holder 6. The winding shaft end holding device 3 is driven along the guide member 5 so as to be selectively disposed at the return position shown and the extraction position indicated by the chain line in FIG. A driving mechanism 8 capable of engaging, and a winding shaft that can be engaged with an end surface of the winding core C farthest from the free end of the winding shaft 2 on the side opposite to the free end of the winding core C. A core movement blocking body 9 for preventing the core C from moving together with the winding shaft 2 when 2 moves to the extraction position; Is provided.
[0020]
In FIG. 1, the original belt-like sheet S0 is unwound from a roll mounted on a raw fabric portion (not shown) or sent from a front-side apparatus (not shown), so that the roller surface length is slightly smaller than the width of the original belt-like sheet S0. The strip-shaped sheet S guided to the grooved roller 11 by the large guide roller 10 group, divided by the slitter 1 and distributed vertically is passed through the upper and lower guide rollers 12 and 13 and the touch roller 14 respectively, and the upper winding position. A is guided to A and the winding position B, and is wound around the hollow core C of each of the divided strip-shaped sheets into a winding roll R. The winding shaft 2 is a known one that can grip the core C during winding of the belt-like sheet S and can release the core C when the winding roll R is unloaded. Details are described in, for example, Japanese Patent Application Laid-Open No. 11-301893, Japanese Patent Application Laid-Open No. 2002-114414, and the like. The winding positions A and B are places where the winding roll R can be formed, respectively, and are spaces occupied by the winding rolls R that can be formed on the two winding shafts 2 that face each other at their free ends.
[0021]
The touch roller 14 is supported by a support device 15 and can come into contact with the outer peripheral surface of the take-up roll R at a substantially fixed position while the belt-like sheet S is taken up with a required contact pressure. In order to increase the distance between the winding shaft 2 and the touch roller 14 as the radius of the winding roll R increases, as shown in FIG. 2, a pair of bases 16 erected on both ends of the base 16 are provided. The side plates 17 and a pair of intermediate plates 18 standing on the base 16 so as to sandwich the winding positions A and B inside the pair of side plates 17 and the beams supported by the pair of side plates 17 and the intermediate plates 18 A winder frame 20 made of a member 19 is slidably mounted on a rail 22 extending horizontally in a winding roll radial direction on a base 21, and the winder frame 20 is railed by a known reciprocating mechanism 23. It can be moved along.
[0022]
As shown in FIG. 3, in order to make the length of each winding shaft 2 as short as possible, the support arm 7 is provided between the winding rolls R at the center or near the center of the winding positions A and B, respectively. Deploy. And in order to be able to cope with the change of the division number within the range of the division specification of the original belt-like sheet S0 by the predetermined slitter 1, the four winding shafts 2 provided at the upper and lower winding positions A and B are provided. Of these, at least one winding shaft 2 is divided by the slitter 1 into the original strip-shaped sheet S0 equally divided into odd-numbered strip-shaped sheets S, and the maximum split width (the maximum width of the necessary strip-shaped sheet S) and the original strip-shaped sheet S0. It has an effective length equivalent to one-half of the sum of the effective width of. That is, in FIG. 3 (A), the required effective length of the winding shaft 2 on the left side of the lower winding position B is L1, and the slitter 1 turns the original belt-like sheet S0 into an odd-numbered belt-like sheet S having the same width. L1 = (Wm + Wa) / 2, where Wm is the maximum division width when dividing, and the minimum division number N1 is the division number and Wa is the effective width of the original sheet S0. Since Wm = Wa / N1 here, L1 = Wa · (N1 + 1) / (2 · N1). In this embodiment, when the number of divisions is 3 or more, the even-numbered strip-shaped sheet S is always distributed to the winding position A. FIG. 3A shows a case where the original belt-like sheet S0 is divided into odd-numbered belt-like sheets S having the same width by the slitter 1, and when the number of divisions is the smallest, that is, when the division width is the largest. The arrangement of the arms 7 is shown.
[0023]
According to this embodiment, the inner diameter of the core is 3 inches, the total width of the strip-shaped sheet S0 is 2.5 meters, the maximum division width by the slitter 1 is 20 centimeters, the minimum number of divisions is 12, and the minimum division width is 12 centimeters, the maximum number of divisions is 20. Therefore, N1 = 13. Further, it is required to divide the original belt-like sheet S0 into 13 strip-like sheets S each having a width of 18.5 cm. Therefore, Wa = 18.5 × 13 = 2.405 meters and L1 = (13 + 1) ÷ (2 × 13) × Wa = 0.5385 × Wa = 1.295 meters.
[0024]
FIG. 3 (B) shows the arrangement of the support arm when the slitter 1 divides the original belt-like sheet S0 into even-numbered belt-like sheets S of the same width, and the number of divisions is the largest. N2 is the maximum number of divisions in L, the effective length required for the right winding shaft 2 at the lower winding position B is L2, and the effective length required for the right winding shaft at the upper winding position A is Assuming L4, L2 = Wa · (N2-2) / (2 · N2), and L4 = 0.5 · Wa.
[0025]
In this embodiment, as described above, the minimum division width is 12 centimeters and the maximum number of divisions is 20, so N2 = 20, Wa = 0.12 × 20 = 2.4 meters, and L2 = Wa ×. (20-2) ÷ (2 × 20) = 0.45 · Wa = 1.08 meters. L4 = 0.5 × Wa = 1.2 meters.
[0026]
FIG. 3C shows the arrangement of the support arms when the slitter 1 divides the original belt-like sheet S0 into the odd-numbered belt-like sheets S having the same width, and the number of divisions is maximum. In this case, assuming that the maximum number of divisions is N3 and the effective length required for the winding shaft 2 on the left side of the upper winding position A is L3, L3 = Wa · (N3-1) / (2 · N3). .
[0027]
In this embodiment, since the maximum number of divisions is 20 as described above, N3 = 19, and it is required to divide the original belt-like sheet S0 into 19 strip-like sheets S having a division width of 13 centimeters. Wa = 13 × 19 = 2.47 meters. Therefore, L3 = Wa × (19−1) ÷ (2 × 19) = 0.474 · Wa = 1.17 meters.
[0028]
According to the present invention, the actual effective length of each winding shaft 2 is calculated as described above in order to provide a margin so that no trouble is caused even if the dividing position by the slitter 1 moves slightly in the belt-like sheet width direction as a whole. The effective lengths L1, L2, L3, and L4 of the winding shaft obtained by the equation can be set to lengths obtained by adding predetermined values, respectively. Further, only one winding axis has an effective length longer than one half of the sum of the effective width of the original belt-like sheet and the maximum division width in the case of dividing into odd-numbered strips, and the other three Each of the winding shafts may have an effective length that is half the effective width of the original belt-shaped sheet so as to be compatible. When the original belt-like sheet is not evenly divided by the slitter, at least one winding shaft is half of the sum of the maximum division width of the original belt-like sheet by the slitter and the effective width of the original belt-like sheet. It is preferable to have an equivalent effective length. And in order to remove the restriction on how to assign the strip-shaped sheet of the individual divided width to the original strip-like sheet, such as which part of the strip-like sheet of the maximum split width is assigned to each other, The two winding shafts with their free ends facing each other, or, for example, the right winding shaft at the upper winding position and the left winding shaft at the lower winding position have a diagonal positional relationship 2 The effective length of the winding shafts may be the same, and in addition, in order to eliminate the restriction of how the divided strip sheets are distributed to the two winding positions, all four winding shafts have the same length. Can be a thing. The minimum number of divisions by the slitter is not limited to the above-mentioned 12 divisions, and may be, for example, 2 divisions or 3 divisions as necessary.
[0029]
In FIG. 2, the core movement prevention body 9 is made of an abrasion-resistant material, is formed in a cylindrical shape so as to be slidably fitted on the outer peripheral surface of the winding shaft 2, and has a hole provided in the intermediate plate 18. It is mounted on the inner surface of the intermediate plate 18 concentrically with the winding shaft 2 that passes therethrough.
[0030]
The reel end holding device 3 has the same structure, and the guide members 5 are each composed of rails. The guide member 5 of the upper reel end holding device 3 is fixed to the beam member 19, and the lower reel end holding device is held. The guide member 5 of the device 3 is fixed to the base 16.
[0031]
In FIG. 4, the winding shaft end holding device 3 includes an arm-shaped main body 3a, a bearing portion 3b provided at the distal end portion of the main body 3a, and a base portion 3c attached to the guide member 5, and the base portion 3c is attached to the main body 3a. It is fixed. The bearing portion 3b firmly holds one end of the winding shaft 2 so that it can be rotated by a pair of bearings (not shown) and cannot move in the axial direction so that the other end is a free end. Therefore, when the winding shaft 2 is moved to the extraction position, the free end of the winding shaft 2 is released from the free end holding tool 6 so that the winding shaft 2 is in a cantilever state. Even if a large bending load is applied, the reel end holding device 3 can support the load to a great extent. Therefore, the force applied from the winding shaft 2 to the core movement blocking body 9 can be reduced, the pulling resistance of the winding shaft 2 can be reduced, and the inner peripheral surface of the winding core movement blocking body 9 can slide with the winding shaft 2. Wear due to can be reduced.
[0032]
The winding motor 4 is mounted on the main body 3 a of the winding shaft end holding device 3 so that it can move together with the winding shaft 2. The rotation of the output shaft 4a of the winding motor 4 is transmitted to the winding shaft 2 through a pulley 24 attached to the output shaft 4a, a pulley 25 attached to one end of the winding shaft 2, and an endless belt 26 hung on them. .
[0033]
As shown in FIG. 5, the drive mechanism 8 selectively rotates the screw rod 28 in both forward and reverse directions, the screw rod 28 screwed into the female screw body 27 attached to the base 3 c of the winding shaft end holding device 3. And a motor 29 that can be used. The rotation of the output shaft of the motor 29 is transmitted to the screw rod 28 via a known transmission device 30, and the screw rod 28 is held immovably in the axial direction.
[0034]
When the screw rod 28 is driven to rotate in the forward direction and the reverse direction by the motor 29, the screw rod 28 pushes the female screw body 27 toward the free end side of the winding shaft 2 or the winding end 2 toward the winding end holding device side. To do. Thereby, the winding shaft end holding device 3 slides along the guide member 5 together with the female screw body 27, and the winding shaft 2 also moves together with the winding shaft end holding device 3.
[0035]
Therefore, the drive mechanism 8 can move the winding shaft end holding device 3, and can place the winding shaft 2 in the return position and the extraction position. When the winding shaft 2 is put in the extraction position, the tip of the winding shaft 2 is in a position retracted from the tip of the core movement prevention body 9 shown in FIG. 2 and is in the hollow portion of the core movement prevention body 9.
[0036]
As shown in FIGS. 1 and 2, the base portion 7 a of the support arm 7 is slidably mounted on the rail 31, and the base portion 7 a has a handle for fixing it to a predetermined position on the rail 31. A clamp screw 32 is provided. The upper rail 31 is fixed to the beam member 19, and the lower rail 31 is fixed to the base 16, and is arranged so as to correspond to the center in the width direction of the winding positions A and B, respectively. It is.
[0037]
As shown in FIG. 6, the free end holders 6 are each composed of a shaft body, and are held at the tip end portion of the support arm 7 by a radial bearing 33 and a thrust bearing 34 so as to be rotatable and immovable in the central axis direction.
[0038]
Since the tapered end 35 is provided concentrically with the winding shaft 2 at the free end of each winding shaft 2, and the free end holder 6 has a tapered hole 36 for fitting the protruding portion 35. When the winding shaft 2 is set to the return position, the free end holding tool 6 fits the projection 35 of the free end of the winding shaft 2 into the hole 36, and the free end of the winding shaft 2 is automatically held by the free end holding tool 6. The If necessary, a tapered hole may be provided at the free end of each winding shaft 2 concentrically with the winding shaft 2, and the free end holding tool 6 may have a tapered protrusion that fits into the hole.
[0039]
As shown in FIGS. 1 and 2, the sheet split winding device of this embodiment has a plurality of rolls opened from the winding shaft 2 in order to quickly carry out the completed winding roll R from the winding positions A and B. A take-up roll receiver 37 provided for each take-up shaft 2 on which the take-up roll R is placed, and one end of the take-up roll receiver 37 are pivotably held, and are provided so as to be able to move up and down in the vicinity of the core movement blocking body 9. And a vertical shaft 38. The left and right shaft bodies 38 are common to the upper and lower take-up roll receivers 37, and can slide on the inner peripheral surface of the guide 39 provided on the intermediate plate 18 and the inner peripheral surface of the guide hole provided on the beam member 19. It is fitted in. One end of each take-up roll receiver 37 is fitted into the outer peripheral surface of the shaft body 38, and is supported by a flange 38a provided on the shaft body 38 so as not to fall. In order to raise and lower the take-up roll receiver 37, a screw rod 41 that is rotationally driven by a motor 40 that can be driven forward and backward is screwed onto the upper end of the shaft body 38.
[0040]
Next, the operation of the sheet split winding device configured as described above will be described. In order to wind the belt-like sheet S by this sheet take-up device, first, the core C of each belt-like sheet S is moved to the winding shaft 2 while the drive mechanism 8 moves the winding shaft 2 from the extraction position to the return position. Extrapolate from the free end and place the winding shaft 2 at the return position.
[0041]
When each winding shaft 2 reaches the return position, the leading end of the belt-like sheet S is bonded to the respective cores, and then each winding motor 2 is simultaneously operated by supplying the original belt-like sheet S0 to the slitter 1 and simultaneously operating each winding motor 4. The belt-like sheet S is wound around the core C by being rotationally driven.
[0042]
When the belt-like sheet S is wound up by a predetermined amount and the winding roll R is completed, the winding motors 4 are stopped all at once, the belt-like sheet S connected to the winding roll R is cut, and the winding roll receiver 37 is After turning the tip so that the tip is directly below the winding shaft 2, each motor 40 is operated, and the shaft body 38 is pulled up until the upper surface of the winding roll receiver 37 approaches the outer peripheral surface of the winding roll R. . Thereafter, the winding shaft end holding device 3 is driven by the driving mechanism 8 to move the winding shafts 2 from the respective return positions to the extraction positions all at once.
[0043]
As the winding shaft 2 moves in the direction of the extraction position, each winding roll R on the winding shaft 2 also moves together with the winding shaft 2, and the winding core R of the winding roll R closest to the winding shaft end holding device 3 prevents the movement of the winding core. The movement of the winding roll R closest to the winding shaft end holding device 3 by being engaged with the tip of the body 9 is prevented. Thereafter, the winding roll R on the free end side of the winding shaft 2 from the winding roll R closest to the winding shaft end holding device 3 is also prevented from moving in the order closer to the winding shaft end holding device 3, and each winding roll R is The end surfaces are in contact with each other. After that, the winding roll R close to the winding shaft tip support arm 7 is sequentially opened on the winding roll receiver 37 and placed on the winding roll receiver 37.
[0044]
When all the winding rolls R are placed on the winding roll receiver 37, the winding roll receiver 37 is turned to carry the winding roll R from the winding position to the front of the winding position. Thereafter, the winding shaft 2 is returned to the return position as described above, and a new winding core C is mounted on the winding shaft 2.
[0045]
When the split width of the original belt-like sheet S0 by the slitter 1 is changed, the clamp screw 32 with the handle is loosened and the support arm 7 is slid along the rail 31 to split and distribute the narrow belt-like sheet S. It moves between the adjacent belt-like sheets S near the center, and the clamp arm 32 is tightened at that position to fix the support arm 7.
[0046]
7 and 8 show a winding shaft rotation driving means provided with one winding motor for two winding shafts, and this winding shaft rotation driving means has two winding shafts 2, 2 facing free ends. A winding motor 4 mounted on a winding shaft end holding device 3 that supports one of the winding shaft 4, a transmission device 40 that transmits the rotation of the winding motor 4 to one winding shaft 2, and two winding shafts 2 and 2, respectively. Two engagement clutch mechanisms 41, 41 capable of connecting the free end of the two winding ends 6 and 6, and means 42 for connecting the free end holders 6 and 6 of the two winding shafts to each other. It consists of. The meshing clutch mechanism 41 includes a claw 41a formed on the tip end face of the free end holding tool 6 and a flange body 43 fixed to the free end of the winding shaft 2 that meshes with the claw 41a when the winding shaft 2 is disposed at the return position. It is comprised with the nail | claw 41b formed in the end surface. The means 42 for connecting the pair of free end holders 6 and 6 includes a shaft portion 44 and a key 45 formed at the rear end of one free end holder 6. The shaft portion 44 and the key 45 are connected to the other end. It fits into a hole and a keyway formed at the rear end of the free end holder 6. When the respective winding shafts 2 are pulled out, the two sets of meshing clutches 41 and 41 are respectively disconnected from the free end holders 6 and 6, and when each of the winding shafts 2 is returned to the return position, the two sets of meshing clutches 41 and 41, respectively. Can be coupled to the free end holders 6 and 6, respectively, to transmit the rotation of the winding motor 4 from one winding shaft 2 to the other winding shaft 2.
[0047]
The sheet split winding device of the present invention may be one in which two winding positions are arranged in the front-rear direction instead of the vertical direction, and a further winding position is added to the two winding positions, Alternatively, the divided belt-like sheet may be distributed and wound, or a known type having a winder frame for each winding position may be used. As in the above-described embodiment, the winding roll may not move in the backward direction as the winding roll becomes thicker, but the touch roll may move backward or turn backward as the winding becomes thicker. In addition, when the winding shaft is pulled out, the winding core movement preventing body engages with the end surface of the winding core that is penetrated by the winding shaft and is closest to the winding shaft end holding device, and the winding core moves together with the winding shaft. Is not limited to that of the above-described embodiment, for example, a known one made of an arm-shaped member provided on a take-up roll receiver, or swiveling around an axis parallel to the winding axis. 2 may be the arm provided on the machine frame so that it can be retracted from the winding position, or the intermediate plate 18 itself shown in FIG. 2, or as disclosed in Japanese Patent Application No. 2001-347163 and drawings. It may be driven along an axis.
[0048]
【The invention's effect】
According to the present invention, two winding shafts are arranged at each winding position so that the free ends thereof face each other. Therefore, even if the width of the original belt-like sheet is widened, each winding shaft is an original material having a narrow width. The thing of the length used for the division winding of a strip | belt-shaped sheet | seat may be sufficient. Compared to the case of using a roll with an effective length equivalent to the width of the original belt-like sheet, the mechanical strength of each roll is greatly improved, and the deflection of the roll is reduced. The free end holding tool can constrain and hold the free end of the winding shaft concentrically, so that the width of the original belt-like sheet does not generate metal powder or the like at that portion, and a pair of rollers as in the past Vibration is less likely to occur than when the outer peripheral surface of the winding shaft is supported from below. Also, the pulling length of the winding shaft when removing the winding roll from the winding shaft can be shortened compared to the conventional one. By moving the winding shaft end holding device all at once by the drive mechanism, the winding shafts can be moved all at once. Therefore, the time for removing the take-up roll is shortened and the operation is simplified. Similarly, it is possible to reduce the time for mounting a new core to the winding shaft.
[0049]
Therefore, it is possible to provide a sheet split winding device that can divide and wind a wide strip of original strips into a number of narrow strips as compared with conventional devices, and further increase the winding speed and increase the operating rate. Improvements can be made. And by making it possible to process a wide original belt-like sheet into a narrow width with one sheet split winding device of the present invention, both ends of the core are held by a core chuck provided on a pair of winding arms. This eliminates the need for a rotary sheet driven take-up device, and can greatly reduce equipment costs, labor, and ear loss. Further, when the take-up roll is removed from the winding shaft, the distance that the inner peripheral surface of the core is rubbed with the winding shaft is shortened, so that the damage to the inner peripheral surface of the core is also greatly reduced. Mixing and sticking to can be prevented.
[0050]
Also, a tapered protrusion is provided concentrically at the free end of the winding shaft, and the free end holder has a hole into which the protruding portion fits, or a tapered hole at the free end of the winding shaft. Are provided concentrically, and the free end holding tool has a protrusion that fits into the hole, so that the free end of the winding axis can be reliably secured by the free end holding tool simply by returning the winding axis to the return position. The structure of the free end holder can be simplified.
[0051]
A winding roll receiver provided on each winding shaft on which the winding roll released from the winding shaft is placed; and one end of the winding roll receiver is rotatably held. With a vertical shaft body that can be moved up and down nearby, the take-up roll receiver that receives the take-up roll from the take-up spindle is swung, and each take-up roll can be easily moved from the take-up position in a short time. It is possible to reduce the time from the completion of the winding shaft extraction to the start of the winding core installation and the length of the winding roll receiver is shortened, so that the winding roll in front of the winding position can be taken out. Requires less space.
[0052]
Furthermore, the winding motor in which the means for rotationally driving the four winding shafts is mounted on a winding shaft end holding device that supports one of the two winding shafts whose free ends face each other, and the winding motor A transmission device that transmits the rotation of the two winding shafts to the one winding shaft, two sets of meshing clutch mechanisms that can couple the two winding shafts and the two free end holding devices, and the two free end holding devices. By including the coupling means between the tools, the two winding shafts can be rotationally driven by one winding motor, so that the means for rotationally driving the winding shafts can be simplified. In addition, it is convenient because the two winding shafts are automatically coupled by simply attaching the two winding shafts to the return position.
[Brief description of the drawings]
FIG. 1 is a side view of a sheet split winding device according to an embodiment of the present invention.
FIG. 2 is a front view of the sheet split winding device of FIG. 1 as viewed in the direction of an arrow A1 from the front of the winding position.
FIG. 3 is an explanatory diagram for explaining a necessary effective length of each winding shaft.
4 is a cross-sectional view taken along arrow A2-A2 in FIG. 2;
FIG. 5 is an explanatory diagram of a drive mechanism.
FIG. 6 is an enlarged cross-sectional view along the center axis of the winding axis of the support arm tip.
FIG. 7 is an explanatory diagram for explaining a change mode of a means for rotationally driving the winding shaft.
FIG. 8 is an enlarged cross-sectional view of the support arm tip portion shown in FIG. 7 along the central axis of the winding axis.
[Explanation of symbols]
S0 Original sheet
S Divided strip sheet
C winding core
R Winding roll
1 slitter
2 reel
3 Core end holding device
4 Winding motor
5 Guide members
6 Free end holder
7 Support arms
8 Drive mechanism
9 Winding core blocker
27 Female screw body
28 Screw rod
29 Motor
31 rails
35 Center shaft
36 holes
37 Rewinding roll receiver
38 shaft

Claims (5)

A sheet dividing and winding device that divides an original belt-like sheet into a plurality of belt-like sheets having a required width with a slitter and winds the divided belt-like sheets by alternately distributing them to upper and lower or front and rear winding positions. Four winding shafts that can pass through and hold a hollow core for winding the formed belt-like sheet, and a winding shaft end holding device that individually holds the four winding shafts in a rotatable and cantilever shape And means for rotationally driving the four winding shafts, two of the four winding shafts being arranged at each winding position so that their free ends face each other, and holding the winding shaft end The apparatus is slidably mounted on a guide member provided in parallel to the central axis direction of the winding axis, and at least one winding axis of the four winding axes is set to the maximum division width of the original belt-like sheet by the slitter and the original belt shape. Equivalent to half the sum of the effective width of the sheet It has a length, a free end holder that can constrain and hold the free ends of the winding shafts concentrically, and a position that can be repositioned in the direction of the center axis of the winding shaft at each winding position. And a support arm on which the free end holders are rotatably mounted two by two, the winding shaft, a return position at which the free end of the winding shaft engages with the free end holder, and a withdrawal position from the winding position. A driving mechanism capable of driving the winding shaft end holding device along the guide member, and a winding core penetrating through the winding shaft, so as to be selectively disposed at a sampling position where the winding shaft is placed. A sheet split winding device, comprising: a winding core movement blocking body capable of engaging with an end surface of the winding core farthest from the free end of the winding shaft on the side opposite to the free end. 2. The sheet split winding according to claim 1, wherein a tapered protrusion is provided concentrically at a free end of the winding shaft, and the free end retainer has a hole into which the protrusion is fitted. Taking device. 2. The sheet split winding according to claim 1, wherein a tapered hole is provided concentrically at a free end of the winding shaft, and the free end holding tool has a protrusion that fits into the hole. apparatus. A winding roll receiver provided corresponding to each winding shaft, on which a winding roll released from the winding shaft is placed, and one end of the winding roll receiver are rotatably held near the winding core movement blocking body. The sheet split winding device according to claim 1, further comprising a vertical shaft provided so as to be movable up and down. A winding motor mounted on a winding shaft end holding device for supporting one of the two winding shafts of which the free ends face each other, and the winding motor; A transmission device that transmits the rotation of the two winding shafts to the one winding shaft, two sets of meshing clutch mechanisms that can couple the two winding shafts and the two free end holding devices, and the two free end holding devices. The sheet split winding device according to claim 1, further comprising a mutual coupling means.

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