JP2008239308A - Position control roll and manufacturing method of sheet type article - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent overlapping, rising-up, etc. of sheet type articles in winding up the sheet type articles. <P>SOLUTION: This manufacturing method of the sheet type articles is devised to wind up a plurality of the sheet type articles by setting a position controlling roll 12 having the maximum diameter at a central part of a roll after making the sheet type article 2 delivered from an original textile 1 into a plurality of the sheet type articles by slitting it and to reduce a radius toward both ends of the roll so as to satisfy an expression; R<SB>MAX</SB>-W≥1. However, meaning of each of codes in the expression is as follows. R<SB>MAX</SB>: radius (mm) at the maximum diametrical part of the position controlling roll and W: a distance (mm) to a paper passing predetermined position from an axial center of the position controlling roll. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a position control roll that can be used when winding a sheet-like material such as paper, cloth, film, or tape, and a method for producing a sheet-like material using the roll.

  For example, the paper is usually wound by a winder after adjusting the thickness and the like, and is made into an original fabric of several thousand to several tens of thousands of meters. In some cases, the original fabric is shipped as it is, but in many cases, the original fabric is unwound and slit to adjust the width, and then wound up again for commercialization. A sheet-like material other than paper is basically manufactured by the same method, although there are differences from the paper such as the size of the original fabric, slit width, and winding length.

  5 and 6 are diagrams for explaining a conventional method for producing a sheet-like material. As shown in FIG. 5, the sheet-like material 2 fed out from the original fabric 1 moves along the guide roll 3 and is slit by the slitter 4 to be a plurality of sheet-like materials 2 a, 2 b, 2 c and 2 d. Thereafter, the plurality of sheet-like objects 2 a, 2 b, 2 c and 2 d further move along the guide roll 3, and are wound by the winding roll 7 via the touch roll 6 in a state where a tensile force is applied by the tension roll 5. Taken.

  For example, as shown in FIG. 6, when a plurality of sheet-like objects 2 a, 2 b, 2 c and 2 d are wound up by the winding roll 7, the sheet-like objects do not overlap each other and the end portions do not rise. Therefore, the position control means 8 is generally provided between the slitter 4 and the winding roll 7. Cited Document 1 discloses a position control means for preventing the overlap of paper tapes.

  7 and 8 are views showing the position control means shown in the cited document 1, FIG. 7 (a) and FIG. 8 (a) are top views, and FIG. 7 (b) is B- in FIG. 7 (a). B sectional drawing, FIG.8 (b) is CC sectional drawing of Fig.8 (a), FIG.8 (c) is a partially expanded view of FIG.8 (b).

  As a conventional position control means, there is a separate roll 9 to which disk-shaped guides 14 are attached at a desired interval as shown in FIG. In this case, the plurality of sheet-like objects 2a, 2b, 2c and 2d come into contact with the separate roll 9, and the sheet-like objects are prevented from overlapping.

  However, since only the separate roll 9 may cause the tape to break, the invention described in the cited document 1 proposes the position control means shown in FIG. That is, this position control means uses a conical tape guide (a tape guide for a paper cutting machine having an inclined surface gradually approaching the tape contact surfaces on both sides upward) on the upstream side of the separate roll 9. It is.

JP-A-6-308092

  If the tape guide for paper cutting machines described in the cited document 1 is used, it is possible to prevent overlap when the plurality of sheet-like objects 2a, 2b, 2c and 2d are wound. However, in this method, as shown in FIG. 8C, it is necessary for the sheet-like material to slide on the guide base material 11, and thus wrinkles are likely to occur. In addition, since the sheet-like material always moves in a state of receiving a frictional resistance, the operation speed cannot be increased in a material having a low tensile strength such as paper.

  The present invention has been made in order to solve such a problem, and does not deteriorate the surface properties of the sheet-like material, and moreover is efficient to produce, and a position control roll for winding up the slit sheet-like material, and It aims at providing the manufacturing method of the sheet-like article using the position control roll.

  The gist of the present invention is a position control roll shown in the following (A) and a method for producing a sheet-like material shown in the following (B).

  (A) A position control roll that is used to regulate the passage positions of a plurality of slit sheets, and has a maximum diameter at the center of the roll, and the radius decreases toward both ends of the roll. Feature position control roll.

(B) After slitting the sheet-like material fed out from the raw fabric into a plurality of sheet-like materials, the position control roll described in (A) above is installed so as to satisfy the following expression (1), and a plurality of A method for producing a sheet-like material comprising winding up the sheet-like material.
R _MAX −W ≧ 1 (1)
However, the meaning of each symbol in the formula (1) is as follows.
R _MAX : Radius (mm) at the maximum diameter part of the position control roll
W: Distance (mm) from the axis center of the position control roll to the expected position to pass the sheet

  When the slit sheet-like material is wound up using the position control roll of the present invention, problems such as overlapping and rising of the sheet-like materials do not occur. Sheet-like materials tend to be brought closer to the center of the roll as the operating speed (winding speed) increases, and problems such as overlap and rise tend to occur. However, if the position control roll of the present invention is used, the operating speed is increased. Even if it makes it, said problem does not arise, and production efficiency improves drastically.

  1 to 4 are schematic views showing an example of a method for producing a sheet-like material of the present invention.

  As shown in FIG. 1, in the sheet-like manufacturing method of the present invention as well, the sheet-like material 2 fed out from the original fabric 1 moves along the guide roll 3 and is slit by the slitter 4 as in the prior art. The plurality of sheet-like objects 2a, 2b, 2c, and 2d. Thereafter, the plurality of sheet-like objects 2 a, 2 b, 2 c and 2 d further move along the guide roll 3, and are wound by the winding roll 7 via the touch roll 6 in a state where a tensile force is applied by the tension roll 5. Taken. A position control roll 12 is installed between the tension roll 5 and the touch roll 6.

  As shown in FIG. 2, when the plurality of sheet-like objects 2a, 2b, 2c and 2d are wound up by the winding roll 7, the position control roll 12 is in contact with the end of the sheet-like object. For example, as shown in FIG. 3, the position control roll 12 is rotatably installed on a support bar 13, and the support bar 13 is connected to a place where the influence of vibration is small. Further, since the position control roll 12 has a maximum diameter at the center of the roll and a shape in which the radius decreases toward both ends of the roll, the plurality of sheet-like objects 2a, 2b, 2c and 2d The force is applied in the direction away from each other.

  Therefore, in the method for producing a sheet-like material of the present invention, the plurality of sheet-like materials 2a, 2b, 2c and 2d are inserted into the touch roll 6 and further the winding roll 7 while keeping a certain distance from each other. Rolled up. Thus, according to the manufacturing method of the sheet-like material using the position control roll 12 of the present invention, the sheet-like materials 2a, 2b, 2c, and 2d are wound without overlapping each other, There is no uplift.

  The installation position of the position control roll 12 may be on the downstream side of the slitter 4, and is not particularly limited, but it is most effective to install it at a position close to the winding roll 7. Therefore, for example, as shown in FIG. 1, it is preferable to install between the tension roll 5 and the touch roll 6. 1 and 2 show the case where a plurality of slit sheet-like objects 2a, 2b, 2c and 2d are wound up by one winding roll. The position control roll of the present invention is not limited to such a case, and can also be used when the sheet-like materials 2a, 2b, 2c, and 2d are wound up by separate rolls.

Here, it is desirable that the positional relationship between the position control roll and the sheet-like material satisfy the following expression (1). As shown in FIG. 4, R _MAX is the radius (mm) at the maximum diameter portion of the position control roll, and W is the distance (mm) from the axial center of the position control roll to the sheet-like object passing position. .
R _MAX −W ≧ 1 (1)

The value of (R _MAX −W) should be larger than 0 originally, but if it is smaller than 1, the contact between the roll and the sheet-like object may be insufficient due to the vibration of the apparatus. It may cause a general uplift. Therefore, the value of (R _MAX −W) is 1 or more. On the other hand, the upper limit of this value is not particularly limited, but if it is too large, the sheet-like material may be torn. Therefore, it is desirable to control the value of (R _MAX -W) to 5 or less. A more desirable lower limit is 2, and a more desirable upper limit is 3.

  The center portion of the position control roll 12 includes not only the center of the roll that is equidistant from both ends of the roll in the direction of the rotation axis of the roll, but also the vicinity thereof. Typically, it means a central portion obtained by dividing the width direction of the roll into three equal parts.

  The material of the position control roll 12 is not particularly limited, and an iron-based alloy such as S45C, a non-ferrous alloy such as an Al alloy, or the like can be used. However, since the roll surface is desirably smooth, for example, It is preferable to use a chromium-plated surface of an iron-based alloy such as S45C.

  The sheet-like material that is the subject of the present invention means, for example, paper, cloth, film, tape, and the like. Among these sheet-like materials, paper is the material with the weakest strength, but if the position control roll of the present invention is used, the position can be sufficiently controlled even with such a weak material.

  When the slit sheet-like material is wound up using the position control roll of the present invention, problems such as overlapping and rising of the sheet-like materials do not occur. Sheet-like materials tend to be brought closer to the center of the roll as the operating speed (winding speed) increases, and problems such as overlap and rise tend to occur. However, if the position control roll of the present invention is used, the operating speed is increased. Even if it makes it, said problem does not arise, and production efficiency improves drastically. The above-mentioned problems such as overlapping and rising are likely to occur in a sheet-like material having a smooth surface, and the present invention is particularly useful for the production of coated paper, for example. In the present invention, since a roll that can be driven and rotated is used, the recording surface and film surface of various recording media provided with a thermal recording layer, a pressure-sensitive recording layer, an inkjet recording layer, etc. for recording on paper, film, etc. are damaged. Is unlikely to occur. Such a tendency becomes more prominent when a roll whose surface is smoothed by chromium plating or the like is used.

It is a schematic diagram which shows the example of the manufacturing method of the sheet-like material of this invention. It is a schematic diagram which shows the example of the position control in the manufacturing method of the sheet-like material of this invention, (a) is a top view, (b) is AA sectional drawing of (a), (c) is (b). FIG. It is a schematic diagram which shows the example of the position control roll of this invention, (a) is a top view, (b) is a side view. It is a schematic diagram which shows the positional relationship of the position control roll and sheet material in the manufacturing method of the sheet material of this invention. It is a figure explaining the manufacturing method of the conventional sheet-like material. It is a figure explaining the position control method in the manufacturing method of the conventional sheet-like object. It is a figure which shows the position control means shown by the cited reference 1, (a) is a top view, (b) is BB sectional drawing of (a). It is a figure which shows the position control means shown by the cited reference 1, (a) is a top view, (b) is CC sectional drawing of (a), (c) is the partially expanded view of (b). . It is.

Explanation of symbols

1. Original fabric 2, 2a, 2b, 2c, 2d. Sheet-like material3. Guide roll 4. 4. Slitter Tension roll 6. 6. Touch roll Winding roll8. Position control means 9. Separate roll 10. Tape guide 11. Guide substrate 12. Position control roll 13. Support bar 14. Disc-shaped guide

Claims (2)

  A position control roll used to regulate the passage positions of a plurality of slit-like sheets, wherein the roll has a maximum diameter at the center of the roll, and the radius decreases toward both ends of the roll. Position control roll. After slitting the sheet material fed from the raw fabric into a plurality of sheet materials, the position control roll according to claim 1 is installed so as to satisfy the following expression (1), and the plurality of sheet materials A method for producing a sheet-like material, wherein
R _MAX −W ≧ 1 (1)
However, the meaning of each symbol in the formula (1) is as follows.
R _MAX : Radius (mm) at the maximum diameter part of the position control roll
W: Distance (mm) from the axis center of the position control roll to the expected position to pass the sheet

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