JP2005206358A - Cutting method for wide band of photosensitive material, and cutting device for wide band of photosensitive material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cutting method and a cutting device for a wide band of photosensitive material using a rotary blade comprising a set of a disc-shaped upper blade and a drum-shaped lower blade for continuously cutting the wide band of photosensitive material into a narrow band of photosensitive material, in which quality deterioration due to friction on cut surfaces at ends of the narrow band of photosensitive material is restricted. <P>SOLUTION: In this cutting method, the rotary blade comprising the disc-shaped upper blade and the drum-shaped lower blade which are rotated in opposite directions to each other is used to continuously cut the wide band of photosensitive material into the narrow band of photosensitive material. The drum-shaped lower blade is composed of a piece A and a piece B at least. The piece A and the piece B have a part having a blade part corresponding to the disc-shaped upper blade and a part without a blade part to form a gap in which the disc-shaped upper blade gets in at the time of cutting. Difference between the maximum diameter of the piece A and diameter of an end part of the piece B is X, and thickness of the wide band of photosensitive material is Y, then the piece A has a part having a relation of 1≤X/Y≤60. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a cutting method and a cutting apparatus for continuously cutting a traveling wide belt-shaped photosensitive material into a narrow width.

  Conventionally, photosensitive materials such as 135 film, photographic paper, X-ray film, and photothermographic material are wide and long supports having different physical properties such as triacetate cellulose (TAC), polyethylene terephthalate (PET), and polyethylene naphthalate (PEN). An undercoat coating solution, a photosensitive layer coating solution, a protective layer coating solution and the like are applied on the top, dried, and then cut into a specified narrow width.

  For these cuttings, a so-called shear-cut type cutter is generally used in which cutting is performed by meshing two upper and lower rotating blades rotating in opposite directions.

  Conventionally, in the cutting of photosensitive materials, the upper and lower blades of the shear-cut cutter are rotated counterclockwise and the lower blade is clockwise with respect to the photosensitive material feeding direction, and the peripheral speed of the upper blade Was cut slightly faster than the peripheral speed of the lower blade, and the peripheral speed of the lower blade was made equal to the feeding speed of the photosensitive material.

  When cutting into a narrow photosensitive material that requires a wide photosensitive material by the shear cutting method, both ends of each narrow photosensitive material rub against the ends of the narrow photosensitive materials adjacent to each other, thereby cutting the cut surface. In some cases, the photosensitive layer may be peeled off, and the quality and reliability of the photosensitive material may be reduced. For this reason, reduce the cutting speed. Since the wide photosensitive material is cut into the narrow photosensitive material, this is one of the reasons why the production efficiency does not increase.

  As a countermeasure to these, when cutting into a narrow photosensitive material that requires a wide photosensitive material by the shear cutting method, the cut narrow photosensitive material is distributed at an angle and discharged from the cutting apparatus for production. Is known (see, for example, Patent Document 1).

  In the method described in Patent Document 1, in the process from cutting to sorting and winding, the narrow width photosensitive material is conveyed at an angle so that it can cope with quality deterioration due to rubbing each other. Yes. However, since narrow-width photosensitive materials are distributed at different angles immediately after cutting, an intersecting portion occurs during sorting, the edges of the narrow-width photosensitive material rub against each other, and the cut section is raised, or the photosensitive layer is peeled off. However, the problem of lowering the quality and reliability of the photosensitive material has occurred, and it has not yet been adequately addressed.

From such a situation, a plurality of narrow photosensitive materials that require a wide photosensitive material are used by using a rotating blade comprising a set of a disk-shaped upper blade and a drum-shaped lower blade rotating in the opposite directions to the traveling wide belt-shaped photosensitive material. A method of cutting a wide photosensitive material with high production efficiency by cutting a plurality of narrow photosensitive materials from a wide photosensitive material without causing quality degradation due to rubbing of the cut surfaces at both ends of the narrow photosensitive material when continuously cutting into a material In addition, it is desired to develop a cutting apparatus for wide photosensitive materials.
JP 2000-141281 A

  The present invention has been made in view of the above circumstances, and its object is to rotate at least one set consisting of a set of a disk-shaped upper blade and a drum-shaped lower blade that rotate the traveling wide belt-shaped photosensitive material in opposite directions. When continuously cutting into at least two narrow photosensitive materials requiring a wide photosensitive material using a blade, there is no deterioration in quality due to rubbing of the cut surfaces at both ends of the narrow photosensitive material, and a plurality of wide photosensitive materials can be used. It is intended to provide a wide photosensitive material cutting method and a wide photosensitive material cutting apparatus with high production efficiency for cutting a narrow photosensitive material.

  The above object of the present invention has been achieved by the following constitution.

(Claim 1)
Using at least one set of rotary blades having a set of a disk-shaped upper blade and a drum-shaped lower blade rotating in opposite directions, the wide belt-shaped photosensitive material that travels is moved along the traveling direction. In a cutting method for continuously cutting at least two narrow strips of photosensitive material,
The drum-shaped lower blade is composed of at least piece A and piece B,
The piece A and the piece B form a gap into which the disk-shaped upper blade enters when cutting between a portion having a blade portion corresponding to the disk-shaped upper blade and a portion having no blade portion,
The method for cutting a wide belt-shaped photosensitive material, wherein the piece A has at least a portion having a relationship represented by a formula 1) with respect to a diameter of an end portion of the piece B forming the gap.

Formula 1) 1 ≦ X / Y ≦ 60
In the formula, X represents the difference between the maximum diameter of the piece A and the diameter of the end portion of the piece B, and Y represents the thickness of the wide belt-shaped photosensitive material.

(Claim 2)
The holding angle of the end portion of the narrow strip-shaped photosensitive material positioned on the piece A is made shallower than the holding angle of the end portion of the narrow strip-shaped photosensitive material positioned on the piece B, and is collected and collected in at least two directions immediately after cutting. The method for cutting a wide strip photosensitive material according to claim 1.

(Claim 3)
The edge of the narrow strip photosensitive material located on the piece A and the end of the narrow strip photosensitive material located on the piece B are substantially held with respect to the piece A and the piece B immediately after cutting. 2. The method for cutting a wide belt-shaped photosensitive material according to claim 1, wherein the sheet is conveyed in a state having no angle and collected at different positions.

(Claim 4)
4. The wide band-shaped photosensitive material cutting according to claim 1, wherein the piece A has blade portions on both sides of the piece member, and the piece B does not have a blade portion on the piece member. Method.

(Claim 5)
The method for cutting a wide belt-shaped photosensitive material according to any one of claims 1 to 3, wherein the piece A and the piece B have a blade portion on one side of a piece member.

(Claim 6)
6. The method for cutting a wide belt-shaped photosensitive material according to claim 1, wherein the piece member and the blade portion are individually rotated.

(Claim 7)
Using at least one set of rotary blades having a set of a disk-shaped upper blade and a drum-shaped lower blade rotating in opposite directions, the wide belt-shaped photosensitive material that travels is moved along the traveling direction. In a cutting device for a wide belt-shaped photosensitive material that continuously cuts at least two narrow strips of photosensitive material,
The drum-shaped lower blade is composed of at least piece A and piece B,
The piece A and the piece B form a gap into which the disk-shaped upper blade enters when cutting between a portion having a blade portion corresponding to the disk-shaped upper blade and a portion having no blade portion,
The strip A for a wide belt-shaped photosensitive material, wherein the piece A has at least a portion having a relationship represented by the formula 1) with respect to the diameter of the end of the piece B forming the gap. .

(Claim 8)
The holding angle of the end portion of the narrow strip-shaped photosensitive material positioned on the piece A is made shallower than the holding angle of the end portion of the narrow strip-shaped photosensitive material positioned on the piece B, and is collected and collected in at least two directions immediately after cutting. The wide band photosensitive material cutting device according to claim 7, wherein:

(Claim 9)
The edge of the narrow strip photosensitive material located on the piece A and the end of the narrow strip photosensitive material located on the piece B are substantially held with respect to the piece A and the piece B immediately after cutting. 8. The wide band-shaped photosensitive material cutting device according to claim 7, wherein the sheet is conveyed in a state having no angle and collected at different positions.

(Claim 10)
10. The wide strip-shaped photosensitive material cutting according to claim 7, wherein the piece A has blade portions on both sides of the piece member, and the piece B does not have a blade portion on the piece member. apparatus.

(Claim 11)
The wide band-shaped photosensitive material cutting device according to any one of claims 7 to 9, wherein the piece A and the piece B have a blade portion on one side of a piece member.

(Claim 12)
The wide band-shaped photosensitive material cutting device according to any one of claims 7 to 11, wherein the piece member and the blade portion rotate individually.

  Using at least one pair of rotary blades consisting of a disk-shaped upper blade and a drum-shaped lower blade rotating in the opposite directions to the traveling wide belt-shaped photosensitive material, at least two narrow-width photosensitive materials that require a wide photosensitive material. A method of cutting a wide photosensitive material with high production efficiency by cutting a plurality of narrow photosensitive materials from a wide photosensitive material without causing quality degradation due to rubbing of the cut surfaces at both ends of the narrow photosensitive material when continuously cutting into a material In addition, it is possible to provide a wide width photosensitive material cutting apparatus, which makes it possible to cut a narrow width photosensitive material with a stable quality, thereby improving the production efficiency.

  Embodiments according to the present invention will be described with reference to FIGS. 1 to 9. Of course, this figure shows an example of the present invention, and the present invention is not limited to this figure.

  FIG. 1 is a schematic view showing the relationship between the disk-shaped upper blade and the drum-shaped lower blade of the present invention. FIG. 1A is a schematic perspective view showing the relationship between a disk-shaped upper blade and a drum-shaped lower blade. FIG. 1B is an enlarged partial schematic cross-sectional view taken along the line AA ′ of FIG. In this figure, the wide belt-shaped photosensitive material is omitted in order to show the relationship between the disk-shaped upper blade and the drum-shaped lower blade.

  In the figure, 1 indicates a disk-shaped upper blade, 101 indicates a mined surface of the disk-shaped upper blade 1, and 102 indicates an anti-mineral surface of the disk-shaped upper blade 1. Reference numeral 103 denotes a rotating shaft to which the disk-shaped upper blade 1 is attached. 2 shows a drum-like lower blade. The drum-shaped lower blade 2 includes at least a drum-shaped piece A201 and a drum-shaped piece B202.

  The piece A201 and the piece B202 are wide band-shaped photosensitive members formed by a blade portion 201b provided on the peripheral surface of the end portion of the piece member 201a of the piece A201 corresponding to the disc-shaped upper blade 1 and an end portion 202b of the piece member 202a of the piece B202. A gap 203 into which the disk-shaped upper blade 1 enters when the material 3 (see FIG. 2) is cut is formed.

  Reference numeral 201b1 denotes an anti-mineral surface of the blade portion 201b, and the wide band-shaped photosensitive material is cut by entering the gap 203 while rotating in opposite directions while maintaining a slight clearance with the anti-mineral surface 102 of the disc-shaped upper blade 1. Is done.

  G indicates the maximum diameter of the blade portion 201b, and H indicates the diameter of the end portion 202b of the piece B. In the gap 203 formed by the piece A201 and the piece B202, the diameter G of the blade portion 201b, which is the maximum diameter of the piece A201, and the diameter H of the end portion 202 of the piece B202 have the following relationship. When the difference between the diameter G of the blade 201b, which is the maximum diameter of the piece A201, and the diameter H of the end 202 of the piece B202 is X, and the thickness of the wide belt-shaped photosensitive material that is to be cut is Y, Equation 1) Have the relationship shown.

Formula 1) 1 ≦ X / Y ≦ 60
When X / Y is less than 1, it is not preferable because the edges of adjacent narrow strips of photosensitive material rub against each other and the cut surface may be raised or the photosensitive layer of the narrow strip of photosensitive material may be peeled off. When X / Y exceeds 60, the cut narrow-band photosensitive material becomes easy to meander, the cut surface is rolled up due to scratches or rubbing between edges, and the photosensitive layer of the narrow-band photosensitive material peels off. This is not preferable.

  As shown in the figure, the drum-like lower blade 2 of the present invention is such that the piece A201 is in the relationship in the gap 203 into which the disk-like upper blade 1 formed by the piece A201 and the piece B202 constituting the drum-like lower blade 2 enters. It has the location represented by said Formula 1) in at least one part.

  The part represented by the formula 1) provided on the piece A201 may be the blade portion 201b and the piece member 201a, or the piece A201 may have the relationship represented by the formula 1). In the case of this figure, the case where the blade part 201b has the relationship represented by said Formula 1) is shown.

  As shown in the figure, the drum-shaped lower blade 2 and the disk-shaped upper blade 1 of the present invention are provided in the gap 203 between the anti-mineral surface 102 of the disk-shaped upper blade 1 and the drum-shaped lower blade piece A201. The anti-mineral surface 201b1 of the portion 201b faces each other, and the mineral surface 101 of the disk-shaped upper blade 1 and the piece member 202a of the piece B202 face each other.

  A specific wide belt-shaped photosensitive material cutting device using the disk-shaped upper blade and the drum-shaped lower blade shown in this drawing and a cutting method using the wide belt-shaped photosensitive material cutting device will be described with reference to FIGS.

  FIG. 2 is a schematic view showing an example of a cutting method using a cutting apparatus having a plurality of rotary blades each having a disk-like upper blade and a drum-like lower blade shown in FIG. FIG. 2A is a schematic perspective view showing an example of a cutting method using a cutting device having a plurality of rotary blades each including the disk-shaped upper blade and the drum-shaped lower blade shown in FIG. FIG. 2B is a schematic partial cross-sectional view taken along the line AA ′ of FIG.

  In the figure, 3 indicates a wide belt-shaped photosensitive material, and 4 indicates an original winding roll of the wide belt-shaped photosensitive material 3. 4 indicates an upper blade portion, 401a to 401g indicate a disk-shaped upper blade (corresponding to the disk-shaped upper blade 1 in FIG. 1), and 402 indicates a rotating shaft to which the disk-shaped upper blades 401a to 401g are attached. The number of attached disc-shaped upper blades 401a to 401g can be changed depending on the width to be cut, and FIG. The disk-shaped upper blades 401a to 401g to be attached all have the same shape.

  Reference numeral 401e1 represents a mined surface of the disc-shaped upper blade 401e (corresponding to the mined surface 101 of the disc-shaped upper blade 1 shown in FIG. 1), and 401e2 represents an anti-mineral surface (an anti-mineral surface of the disc-shaped upper blade 1 shown in FIG. 1). 102). Similarly, the other upper blades have a shape having a mined surface and an anti-mineral surface.

Reference numeral 5 denotes a lower blade portion, reference numeral 501 denotes a drum-like lower blade, and reference numeral 502 denotes a rotating shaft that rotates the drum-like lower blade 501. Reference numerals 501 a to 501 h denote pieces constituting the drum-like lower blade 501. Of the pieces 501a to 501h, the pieces 501a, 501c, 501e, and 501g are pieces having a blade portion, and the pieces 501b, 501d, 501f, and 501h are pieces having no blade portion. The piece 501a has a piece member 501a2 and a blade portion 501a1 provided on the peripheral surface of one end of the piece member 501a2, and the piece 501e is provided on the peripheral surfaces of both end portions of the piece member 501e3 and the piece member 501e3. A blade portion 501e1 and a blade portion 501e2 are provided. The other pieces 501c and 501g have the same configuration as the piece 501e. Reference numerals 501b1, 501d1, 501f1, and 501h1 denote piece members of pieces 501b, 501d, 501f, and 501h that do not have a blade portion, respectively.
The diameter of each of the pieces 501a, 501c, 501e, and 501g having the blade is larger than the diameter of the piece members 501b1, 501d1, 501f1, and 501h1 of the pieces 501b, 501d, 501f, and 501h having no blade. .

  502a to 502g have gaps in which the respective disc-shaped upper blades 401a to 401g configured by the pieces 501a, 501c, 501e, and 501g having the respective blade portions and the pieces 501b, 501d, 501f, and 501h having no blade portion are inserted. Show.

  The portion indicated by P is a portion corresponding to FIG. 1, the piece 501e corresponds to the piece A201 shown in FIG. 1, the piece 501f corresponds to the piece B202 shown in FIG. 1, and the gap 402e is the blade portion of the piece 501e. It is comprised from 501e2 and the edge part 501f2 of the piece 501f. The gap 402e corresponds to the gap 203 shown in FIG. That is, the anti-mineral surface 501e21 of the blade portion 501e2 of the piece 501e and the anti-mineral surface 401e2 of the disc-shaped upper blade 401e face each other, and the mineral surface 401e1 of the disc-shaped upper blade 401e and the end portion 501f2 of the piece member 501f1 of the piece 501f are formed. It is a facing combination. The relationship between the other disk-shaped upper blades 401a to 401d, 401f, and 401g and each piece constituting the drum-shaped lower blade 501 is also the same.

  In the case of this figure, the drum-like lower blade is composed of a combination of a piece having blade portions at both ends of the piece and a piece having no blade portion, and a portion having a blade portion corresponding to the disk-like upper blade. Forming a gap into which the disk-shaped upper blade enters when cutting with a portion that does not have a blade portion, and the diameter of the blade portion on the anti-mineral surface side of the disk-shaped upper blade and the blade portion on the mineral surface side of the disk-shaped upper blade The relationship with the diameter of the end of the piece member of the piece that does not have the structure satisfies the formula 1) shown in FIG.

  Reference numerals 601 to 608 denote narrow strip photosensitive materials cut from the wide strip photosensitive material 1. Reference numeral 7 denotes a roll-shaped narrow-band photosensitive material obtained by winding the narrow-band photosensitive material 601 to 608 in a roll shape around the winding axis. 701 to 704 constitute a drum-like lower blade having an anti-mineral surface of a disk-like upper blade and a blade portion on both sides without having a holding angle with a piece having a blade portion on both sides constituting the drum-like lower blade. 2 shows a roll-shaped narrow-band photosensitive material obtained by winding a narrow-band photosensitive material 601 to 604 having an end in contact with the anti-mineral surface of the blade portion of the piece being rolled up around a winding shaft. 705 to 708 have a drum-shaped lower blade that does not have a blade part on both sides, and does not have a holding angle with a piece piece that constitutes a drum-shaped lower blade on both sides. A rolled narrow-width photosensitive material is shown in which a narrow-width photosensitive material 605 to 608 having an end portion that comes into contact with the end portion of a piece portion constituting a blade is wound up in a roll shape around a winding shaft.

Reference numerals 701 and 708 denote rolls in which unnecessary portions at both ends of the wide belt-shaped photosensitive material 3 generated at the time of cutting are wound up. In the cutting shown in the drawing, it is preferable to perform the cutting with the coated surface of the wide belt-shaped photosensitive material 3 being the drum-like lower blade side.
In this figure, each narrow-band photosensitive material 602 to 607 cut from the wide-band photosensitive material 1 is wound up to produce roll-shaped narrow-band photosensitive materials 701 to 704 and roll-shaped narrow-band photosensitive materials 705 to 708. The narrow strips of photosensitive material 601 to 604 for the narrow strips of photosensitive material 701 to 704 having ends that come into contact with the anti-mineral surface of the disc-shaped upper blade, and the minced surface of the disc-shaped upper blade. Each narrow-width photosensitive material 605-608 for roll-shaped narrow-width photosensitive material 705-708 having end portions is conveyed horizontally without having a holding angle with respect to each piece constituting the drum-like lower blade. Each of the narrow strip photosensitive materials 601 to 604 for the roll narrow strip photosensitive materials 701 to 704 and each of the narrow strip photosensitive materials 605 to 608 for the roll narrow strip photosensitive materials 705 to 708 are wound at different positions. Place to take The shows. The distribution method immediately after cutting will be described with reference to FIG.

  FIG. 3 is a schematic partial sectional view showing a combination of the disk-shaped upper blade shown in FIG. 2B and another drum-shaped lower blade. FIG. 3A is a schematic partial cross-sectional view when a drum-like lower blade having a diameter larger than that of a piece having a blade portion is larger than that of a piece having no blade portion. FIG. 3B is a schematic partial cross-sectional view when a drum-like lower blade having a larger diameter than that of a piece having no blade portion is used as a piece member having a blade portion.

  This will be described in the case of FIG. In the figure, reference numeral 504 denotes a drum-like lower blade, and reference numerals 504a to 504h denote pieces constituting the drum-like lower blade 504. Of the pieces 504a to 504h, the pieces 504a, 504c, 504e, and 504g are pieces having a blade portion, and the pieces 504b, 504d, 504f, and 504h are pieces having no blade portion. The piece 504a has a piece member 504a2 and a blade portion 504a1 provided on the peripheral surface of one end of the piece member 504a2. The piece 504e has a piece member 504e3 and a blade portion 504e1 and a blade portion 504e2 provided on the peripheral surfaces of both end portions of the piece member 504e3. The other pieces 504c and 504g have the same configuration as the piece 504e. Reference numerals 504b1, 504d1, 504f1, and 504h1 denote piece members of pieces 504b, 504d, 504f, and 504h that do not have a blade portion, respectively.

  The diameters of the pieces 504a, 504c, 504e, and 504g having the blade portions are larger than the diameters of the piece members 504b1, 504d1, 504f1, and 504h1 of the pieces 504b, 504d, 504f, and 504h that do not have the blade portions.

  Reference numerals 505a to 505g denote gaps into which the respective disc-shaped upper blades 401a to 401g configured by the pieces 504a, 504c, 504e, and 504g having the respective blade portions and the pieces 504b, 504d, 504f, and 504h having no blade portion are inserted.

  The portion indicated by P1 corresponds to P in FIG. 2, the piece 504e corresponds to the piece A201 shown in FIG. 1, the piece 504f corresponds to the piece B202 shown in FIG. 1, and the gap 505e corresponds to the piece 504e. The blade portion 504e2 and the end portion 504f2 of the piece 504f are configured. The gap 505e corresponds to the gap 203 shown in FIG. That is, the anti-mineral surface 504e21 of the blade portion 504e2 of the piece 504e and the anti-mineral surface 401e2 of the disc-shaped upper blade 401e face each other, and the mineral surface 401e1 of the disc-shaped upper blade 401e and the end portion 504f2 of the piece member 504f1 of the piece 504f are formed. It is a facing combination. The relationship between the other disk-shaped upper blades 401a to 401d, 401f, 401g and the respective pieces constituting the drum-shaped lower blade 504 is also the same.

  In the case of this figure, the drum-like lower blade is composed of a combination of a piece having blade portions at both ends of the piece and a piece having no blade portion, and a portion having a blade portion corresponding to the disk-like upper blade. Forming a gap into which the disk-shaped upper blade enters when cutting with a portion having no blade portion, and the diameter of the piece having the blade portion on the side opposite to the surface of the disk-shaped upper blade and the side of the disk surface of the disk-shaped upper blade The relationship with the diameter of the end portion of the piece member of the piece that does not have the blade portion satisfies the formula 1) shown in FIG.

This will be described in the case of FIG. In the figure, 506 represents a drum-like lower blade, and 506a to 506h represent pieces constituting the drum-like lower blade 506. Of the pieces 506a to 506h, the pieces 506a, 506c, 506e, and 506g are pieces having a blade portion, and the pieces 506b, 506d, 506f, and 506h are pieces having no blade portion. The piece 506a has a piece member 506a2 and a blade portion 506a1 provided on the peripheral surface of one end of the piece member 506a2. The piece 506e includes a piece member 506e3 and blade portions 506e1 and 506e2 provided on the peripheral surfaces of both end portions of the piece member 506e3. The other pieces 506c and 506g have the same configuration as the piece 506e. Reference numerals 506b1, 506d1, 506f1, and 506h1 denote piece members of pieces 506b, 506d, 506f, and 506h that do not have a blade portion, respectively.
The diameters of the piece members 506b1, 506d1, 506f1, and 506h1 of the pieces 506b, 506d, 506f, and 506h that do not have the blade portion are the diameters of the piece members 506a2, 506c1, 506e3, and 506g1 that have the blade portions. It is getting bigger.

  507A to 507G have gaps in which the respective disc-shaped upper blades 401a to 401g formed by the pieces 506a, 506c, 506e, and 506g having the respective blade portions and the pieces 506b, 506d, 506f, and 506h having no blade portion are inserted. Show.

  The portion indicated by P2 corresponds to P in FIG. 2, the piece 506e corresponds to the piece A201 shown in FIG. 1, the piece 506f corresponds to the piece B202 shown in FIG. 1, and the gap 507E corresponds to the piece 506e. The blade portion 506e2 and the end portion 506f2 of the piece 506f are configured. The gap 507E corresponds to the gap 203 shown in FIG. That is, the anti-mineral surface 506e21 of the blade portion 506e2 of the piece 506e and the anti-mineral surface 401e2 of the disk-shaped upper blade 401e face each other, and the mineral surface 401e1 of the disk-shaped upper blade 401e and the end portion 506f2 of the piece member 506f1 of the piece 506f1 are formed. It is a facing combination. The relationship between the other disk-shaped upper blades 401a to 401d, 401f, 401g and the respective pieces constituting the drum-shaped lower blade 506 is also the same.

  In the case of this figure, the drum-like lower blade is composed of a combination of a piece having blade portions at both ends of the piece and a piece having no blade portion, and a portion having a blade portion corresponding to the disk-like upper blade. Forming a gap into which the disk-shaped upper blade enters when cutting with a portion having no blade portion, and the diameter of the piece member of the piece having the blade portion on the side opposite to the minor surface of the disk-shaped upper blade and the disk-shaped upper blade The relationship with the diameter of the end portion of the piece member of the piece that does not have the blade portion on the mining surface side satisfies the formula 1) shown in FIG.

  Even when the drum-like lower blade shown in this figure is used, the distribution of each narrow-band photosensitive material immediately after cutting is the same as that of the drum-like lower blade shown in FIG. The distribution method immediately after cutting will be described with reference to FIG.

  FIG. 4 is a schematic partial sectional view showing a combination of the disk-shaped upper blade shown in FIG. 2B and the drum-like lower blade other than those shown in FIG. 2B and FIG. (A) of FIG. 4 is the diameter of the edge part of the piece facing the mineral surface side of a disk-shaped upper blade with the diameter of the blade part provided in the one side of the piece facing the anti-mineral surface side of a disk-shaped upper blade. It is a general | schematic fragmentary sectional view at the time of using the drum-shaped lower blade which combined several larger pieces. FIG. 4 (b) shows the end of the piece member on the side of the disc surface of the disc-shaped upper blade in which the diameter of a part of the piece member provided with the blade portion on one side of the piece facing the anti-mineral surface side of the disc-shaped upper blade It is a general | schematic fragmentary sectional view at the time of using the drum-shaped lower blade which combined several pieces larger than the diameter of this. (C) of FIG. 4 is a piece member on the mining surface side of the disc-shaped upper blade in which the diameter of the piece blade portion and the piece member is provided with a blade portion on one side of the piece facing the anti-mineral surface side of the disc-shaped upper blade. It is a general | schematic fragmentary sectional view at the time of using the drum-shaped lower blade which combined several pieces larger than the diameter of the edge part of this.

  This will be described with reference to FIG. In the figure, 507 indicates a drum-shaped lower blade, and 507a to 507h indicate pieces constituting the drum-shaped lower blade 507. Of the pieces 507a to 507h, the pieces 507a to 507g are pieces having a blade portion on one side, and the piece 507h is a piece having no blade portion. Each piece 507a-507g has piece member 507a2-507g2 and blade part 507a1-507g1 provided in the peripheral surface of the edge part of one side of each piece member 507a2-507g2. The diameters of the blade portions 507a1 to 507g1 provided on the peripheral surfaces of the end portions of the piece members 507a2 to 507g2 are the end portions (having blade portions) of the piece members 507a2 to 507g2 on the surface side of the disk-shaped upper blades 401a to 401g. The diameter is not larger). Reference numerals 508a to 508g denote gaps into which the respective disk-shaped upper blades 401a to 401g configured by the pieces 507a to 507h enter.

  A portion indicated by P3 corresponds to P in FIG. 2, the piece 507e corresponds to the piece A201 shown in FIG. 1, the piece 507f corresponds to the piece B202 shown in FIG. 1, and the gap 508e corresponds to the piece 507e. The blade portion 507e1 and the end portion 507f3 of the piece 507f are configured. The gap 508e corresponds to the gap 203 shown in FIG. That is, the anti-mineral surface 507e11 of the blade portion 507e1 of the piece 507e and the anti-mineral surface 401e2 of the disc-shaped upper blade 401e face each other, and the mineral surface 401e1 of the disc-shaped upper blade 401e and the end portion 507f3 of the piece member 507f1 of the piece 507f are formed. It is a facing combination. The relationship between the other disk-shaped upper blades 401a to 401d, 401f, 401g and the respective pieces constituting the drum-shaped lower blade 504 is also the same.

  In the case of this figure, the drum-shaped lower blade is composed of a combination of a piece having a blade portion at one end of the piece member and a piece having no blade portion, and corresponds to a disk-shaped upper blade. Forming a gap into which the disk-shaped upper blade enters when cutting between the portion having the edge and the portion not having the blade portion, and the diameter of the blade portion of the piece having the blade portion on the anti-mineral surface side of the disk-shaped upper blade and the disk shape The relationship with the diameter of the end part of the piece member of the piece on the side of the upper surface of the upper blade satisfies the formula 1) shown in FIG.

  This will be described in the case of FIG. In the figure, reference numeral 509 denotes a drum-like lower blade, and 509a to 509h denote pieces constituting the drum-like lower blade 509. Of the pieces 509a to 509h, the pieces 509a to 509g are pieces having a blade portion on one side, and the piece 509h is a piece having no blade portion. Each piece 509a-509g has blade part 509a1-509g1 provided in the peripheral surface of the one side edge part of piece member 509a2-509g2, and each piece member 509a2-509g2, respectively.

  The piece members 509b2 to 509g2 of the pieces 509b to 509g each having a blade part on one side have a larger diameter on the side where the blade part is attached to the other end part, and the surface of the piece members 509a2 to 509g2 is inclined. Have. The diameter of the piece member 509a2 of the piece 509a having the blade portion on one side is larger than the diameter of the end portion of the piece member 509b2 of the piece 509b having the blade portion. The diameter of the piece member 509h1 of the piece 509h having no blade portion is the same as the diameter of the end portions of the piece members 509b2 to 509g2 of the pieces 509b to 509g having the blade portion.

  Reference numerals 510a to 510g denote gaps into which the respective disc-shaped upper blades 401a to 401g configured by the pieces 509a to 509h enter.

  The part indicated by P4 corresponds to P in FIG. 2, the piece 509e corresponds to the piece A201 shown in FIG. 1, the piece 509f corresponds to the piece B202 shown in FIG. 1, and the gap 510e corresponds to the piece 509e. The blade portion 509e1 and the end portion 509f3 of the piece 509f are configured. The gap 510e corresponds to the gap 203 shown in FIG. That is, the anti-mineral surface 509e11 of the blade portion 509e1 of the piece 509e and the anti-mineral surface 401e2 of the disc-shaped upper blade 401e face each other, and the mineral surface 401e1 of the disc-shaped upper blade 401e and the end portion 509f3 of the piece member 509f2 of the piece 509f are formed. It is a facing combination. The relationship between the other disk-shaped upper blades 401a to 401d, 401f, 401g and the pieces constituting the drum-shaped lower blade 509 is also the same.

  In the case of this figure, the drum-shaped lower blade is composed of a combination of a piece having a blade portion at one end of the piece member and a piece having no blade portion, and corresponds to a disk-shaped upper blade. Forming a gap into which the disk-shaped upper blade enters when cutting between the portion having the edge and the portion not having the blade portion, and the diameter of the piece member of the piece having the blade portion on the anti-mineral surface side of the disk-shaped upper blade and the disk shape The relationship with the diameter of the end part of the piece member of the piece on the side of the upper surface of the upper blade satisfies the formula 1) shown in FIG.

  This will be described in the case of FIG. In the figure, 511 represents a drum-shaped lower blade, and 511a to 511h represent pieces constituting the drum-shaped lower blade 511. Of the pieces 511a to 511h, the pieces 511a to 511g are pieces having a blade portion on one side, and the piece 511h is a piece having no blade portion. Each piece 511a-511g has blade part 511a1-511g1 provided in the peripheral surface of the one side edge part of piece member 511a2-511g2 and each piece member 511a2-511g2, respectively.

  The diameters of the blade portions 511b1 to 511g1 provided at the ends of the pieces 511b to 511g and the diameters on the side where the blade portions 511b1 to 511g1 of the piece members 511b2 to 511g2 are provided are larger than the other end portion. The surfaces of the piece members 511b2 to 511g2 have an inclination. The diameter of the blade part 511a1 and the piece member 511a2 provided at the end part of the piece 511a is larger than the diameter of the end part of the piece member 511b2 of the piece 511b having the blade part. The diameter of the piece member 511h1 of the piece 511h not having the blade portion is the same as the diameter of the end portion of the piece members 511b2 to 511g2 of the pieces 511b to 511g having the blade portion.

  Reference numerals 512a to 512g denote gaps into which the respective disc-shaped upper blades 401a to 401g formed by the pieces 511a to 511h are inserted.

  The portion indicated by P5 is a portion corresponding to P in FIG. 2, the piece 5119e corresponds to the piece A201 shown in FIG. 1, the piece 511f corresponds to the piece B202 shown in FIG. 1, and the gap 512e is the piece 511e. The blade portion 511e1 and the end portion 511f3 of the piece 511f are configured. The gap 512e corresponds to the gap 203 shown in FIG. That is, the anti-mineral surface 511e11 of the blade portion 511e1 of the piece 511e and the anti-mineral surface 401e2 of the disc-shaped upper blade 401e face each other, and the mining surface 401e1 of the disc-shaped upper blade 401e and the end portion 511f3 of the piece 511f face each other. ing. The relationship between the other disk-shaped upper blades 401a to 401d, 401f, 401g and the respective pieces constituting the drum-shaped lower blade 511 is also the same.

  In the case of this figure, the drum-shaped lower blade is composed of a combination of a piece having a blade portion at one end of the piece member and a piece having no blade portion, and corresponds to a disk-shaped upper blade. The diameter of the piece member and the blade portion of the piece having a blade portion on the side opposite to the minor surface of the disk-shaped upper blade is formed by forming a gap into which the disk-shaped upper blade enters when cutting between the portion having the edge and the portion not having the blade portion And the diameter of the end portion of the piece member of the piece on the side of the mineral surface of the disk-shaped upper blade satisfy the formula 1) shown in FIG.

  The blade portion and the piece member provided on the piece member shown in FIGS. 1 to 4 may be separately rotatable via a bearing such as a ball bearing.

  Even when the drum-like lower blade shown in this figure is used, the distribution of each narrow strip-shaped photosensitive material immediately after cutting is performed in the same manner as in the case of the pieces constituting the drum-like lower blade shown in FIGS. It is possible. The distribution method immediately after cutting will be described with reference to FIG.

  FIG. 5 is a schematic view showing another example of a cutting method using the cutting apparatus shown in FIG.

  The reference numerals in the figure are the same as those in FIG. 2, and the drum-like lower blade used has the same structure as shown in FIGS. In the case of this figure, the case where the narrow belt-shaped photosensitive material 6 cut from the wide belt-shaped photosensitive material 1 is wound up is divided up and down with each piece constituting the drum-shaped lower blade having a holding angle. ing.

  Reference numerals 702 to 704 denote pieces of drum-like lower blades which are held by pieces 501c, 501e and 501g having blade portions on both sides constituting the drum-like lower blade, and which have anti-mineral surfaces of the disk-like upper blade and blade portions on both sides. A roll-shaped narrow strip-shaped photosensitive material obtained by winding a narrow strip-shaped photosensitive material 602 to 604 having an end portion in contact with the anti-mineral surface of the blade portion of a piece in a roll shape around a winding shaft is shown. 701 is held by a piece 501a having a blade portion on one side constituting the drum-like lower blade, and is anti-mineral surface of the disk-like upper blade and the blade portion of the drum-like lower blade piece having the blade portion on one side. A rolled narrow-width photosensitive material is shown in which a narrow-width photosensitive material 601 having an end in contact with a mined surface is rolled up around a winding axis.

  Reference numerals 705 to 707 denote drum-shaped lower blade pieces 501b, 501d, and 501f that do not have blade portions on both sides, and the disc-shaped upper blade piece portion and drum-shaped lower blade piece portions that do not have blade portions on both sides. A rolled narrow-band photosensitive material obtained by winding a narrow-band photosensitive material 605 to 607 having an end in contact with the end into a roll around a winding shaft is shown. Reference numeral 708 denotes a drum-shaped lower blade piece 501h that does not have a blade portion on both sides, and contacts the surface of the disk-shaped upper blade and the end portion of the drum-shaped lower blade piece portion that does not have a blade portion on both sides. A rolled narrow-width photosensitive material obtained by winding a narrow-width photosensitive material 608 having an end into a roll around a winding shaft is shown.

  In the cutting shown in the drawing, it is preferable to perform the cutting with the coated surface of the wide belt-shaped photosensitive material 3 being the drum-like lower blade side.

  In this figure, each narrow-width photosensitive material 601 to 608 cut from the wide-width photosensitive material 1 is wound up to produce roll-like narrow-band photosensitive materials 701 to 704 and roll-like narrow-band photosensitive materials 705 to 708. To the pieces constituting the drum-like lower blades of the respective narrow-band photosensitive materials 601 to 604 for the roll-like narrow-band photosensitive materials 701 to 704 having ends that contact the anti-mineral surface of the disc-shaped upper blade The drum-shaped lower blades of the narrow-band photosensitive materials 605 to 608 for the roll-shaped narrow-band photosensitive materials 705 to 708 having an end portion that contacts the mined surface of the disk-shaped upper blade are formed. This shows a case where the hugging angle to the piece is deepened, and the pieces are alternately wound up and down. The distribution method immediately after cutting will be described with reference to FIG.

  As shown in this figure, the method of sorting up and down can be applied to the drum-like lower blade shown in FIG. 3, and when the drum-like lower blade shown in FIG. 4 is used, each narrow-band photosensitive material immediately after cutting is sorted. In this case, it is possible to produce a take-up roll-shaped narrow strip-shaped photosensitive material by alternately changing the holding angle in the order of the pieces constituting the drum-shaped lower blade and sorting them up and down. The distribution method immediately after cutting will be described with reference to FIG.

  FIG. 6 is a schematic cross-sectional view showing the state of the narrow strip-shaped photosensitive material after cutting shown in FIG.

  This figure shows the state of the two narrow-band photosensitive materials after the wide-band photosensitive material is cut into two narrow-band photosensitive materials by a disc-shaped upper blade in a gap portion constituted by two pieces. Is shown. In the figure, K indicates a disk-shaped upper blade and corresponds to the disk-shaped upper blades 401a to 401g shown in FIG. K1 represents the mined surface of the disc-shaped upper blade, and corresponds to the mined surface 401e1 of the disc-shaped upper blade 401e shown in FIG. K2 represents the anti-mineral surface of the disk-shaped upper blade, and corresponds to the anti-mineral surface 401e2 of the disk-shaped upper blade 401e shown in FIG.

  L1 indicates a blade portion on the anti-mineral surface 401e2 side of the disc-shaped upper blade 401e of a piece having a blade portion constituting a drum-like lower blade, and the blade portions of the pieces 501a, 501c, 501e, and 501g shown in FIG. It corresponds to. L2 indicates the end of the piece on the side of the mineral surface 401e1 of the disc-shaped upper blade 401e of the piece that does not have the blade portion constituting the drum-like lower blade, and the pieces 501b, 501d, 501f, and 501h shown in FIG. Corresponds to the end. This figure shows a case where the diameter of the blade portion L1 of the piece is larger than the diameter of the end portion L2 of the piece.

  S denotes a narrow strip photosensitive material having an end portion held by the piece blade L1, and the narrow strip photosensitive materials 601 to 604 for the roll narrow strip photosensitive materials 701 to 704 shown in FIG. It corresponds to. T denotes a narrow strip-shaped photosensitive material having an end portion held by the end portion L2 of the piece, and the narrow strip-shaped photosensitive materials 605 to 608 of the roll-shaped narrow strip photosensitive materials 705 to 708 shown in FIG. Equivalent to. Z indicates a cutting point.

  The narrow strip-shaped photosensitive material S cut as shown in the figure is in a state where it is conveyed horizontally without holding the blade edge L1 of the piece. Further, the narrow strip-shaped photosensitive material T, like the narrow strip-shaped photosensitive material S, is in a state of being conveyed horizontally without having a holding angle at the end L2 of the piece. Thus, even if the sheet is conveyed horizontally immediately after cutting, the diameter of the blade portion L1 of the piece is larger than the diameter of the end portion L2 of the piece. The edges are not rubbed and stable cutting can be performed.

  This figure shows the state of the narrow strip-shaped photosensitive material immediately after cutting when the drum-like lower blade shown in FIG. 2 is used as a representative, but also when the drum-like lower blade shown in FIGS. 3 and 4 is used. Similarly, it is possible to horizontally transport and wind up the narrow strip photosensitive material immediately after cutting.

  FIG. 7 is a schematic cross-sectional view showing a state in which the narrow-width photosensitive material after cutting shown in FIG.

  This figure shows the state of the two narrow-band photosensitive materials after the wide-band photosensitive material is cut into two narrow-band photosensitive materials by a disc-shaped upper blade in a gap portion constituted by two pieces. Is shown. In the figure, K indicates a disk-shaped upper blade and corresponds to the disk-shaped upper blades 401a to 401g shown in FIG. K1 represents a mined surface of the disc-shaped upper blade, and corresponds to a mined surface 401e1 (see FIG. 2) of the disc-shaped upper blade 401e shown in FIG. K2 represents the anti-mineral surface of the disk-shaped upper blade, and corresponds to the anti-mineral surface 401e2 (see FIG. 2) of the disk-shaped upper blade 401e shown in FIG.

  L1 indicates the blade portion on the side of the anti-mineral surface 401e2 of the disc-shaped upper blade 401e having a blade portion constituting a drum-like lower blade, and the blade portions of the pieces 501a, 501c, 501e, and 501g shown in FIG. It corresponds to. L2 indicates the end of the piece on the side of the mineral surface 401e1 (see FIG. 2) of the disc-shaped upper blade 401e of the piece that does not have the blade portion constituting the drum-like lower blade, and the piece 501b shown in FIG. It corresponds to the end portions of 501d, 501f, and 501h. This figure shows a case where the diameter of the blade portion L1 of the piece is larger than the diameter of the end portion L2 of the piece.

S denotes a narrow strip photosensitive material having an end held by the blade portion L1 of the piece, and corresponds to the narrow strip photosensitive material for the roll narrow strip photosensitive materials 702 to 704 shown in FIG. . T denotes a narrow strip photosensitive material having an end portion held by the end portion L2 of the piece, and corresponds to the narrow strip photosensitive material for the roll-shaped narrow strip photosensitive materials 705 to 707 shown in FIG. Z indicates a cutting point. θ1 represents a holding angle to the end portion L2 of the piece of the narrow belt-shaped photosensitive material T. The holding angle θ1 is an angle at which a straight line connecting the center U of the piece at the end portion L2 and the cutting point Z intersects with a straight line connecting the center V and the position V where the narrow strip photosensitive material T is separated from the end portion L2 of the piece. . The larger the holding angle θ1, the greater the distance that the narrow belt-shaped photosensitive material T is in contact with (holding) the end portion L2 of the piece. θ2 represents a holding angle of the piece of the narrow strip-shaped photosensitive material S to the blade portion L1. The holding angle θ2 is an angle at which a straight line connecting the center U of the piece having the blade portion L1 and the cutting point Z intersects with a straight line connecting the center W and the position W where the narrow strip photosensitive material S is separated from the blade portion L1 of the piece. is there. The larger the holding angle θ2, the greater the distance that the narrow belt-shaped photosensitive material S is in contact (embraced) with the blade portion L1 of the piece.

  As the difference between the holding angle θ1 and the holding angle θ2 (relative holding angle) is larger, the narrow strip photosensitive material S and the narrow strip photosensitive material T are separated earlier at the cutting point. It is possible to prevent rubbing between the ends of the narrow belt-shaped photosensitive material T. The holding angle is preferably 0.5 to 180 °.

  As shown in this figure, the narrow-band photosensitive material S and the narrow-band photosensitive material S are sorted and transported up and down immediately after cutting, thereby further narrowing the narrow-band photosensitive material S and the horizontal transport shown in FIG. There is no risk of rubbing the end with the narrow belt-shaped photosensitive material S, and stable cutting is possible.

  FIG. 8 is an enlarged schematic cross-sectional view of a portion indicated by P in FIG.

  In the figure, θ3 represents the edge angle of the disc-shaped upper blade 401e, and the blade edge angle θ3 is preferably 30 to 90 degrees, more preferably 75 to 90 degrees. When the angle is less than 30 degrees, the cutting edge is liable to be broken and the durability is not preferable. When the angle exceeds 90 degrees, the sharpness is decreased, which is not preferable. θ4 indicates the edge angle of the blade portion 501e2 provided on the piece member 501e3 of the piece 501e constituting the drum-like lower blade 501, and is preferably 70 to 90 degrees. If the angle is less than 70 degrees, the disk-shaped upper blade 401e may be unevenly worn, which is not preferable. If the angle exceeds 90 degrees, the contact between the disk-shaped upper blade 401e and the blade portion 501e2 becomes insufficient, and the disk-shaped upper blade 401e The blade 401e may be detached from the blade portion 501e2, which is not preferable.

  It is preferable to use the above disk-shaped upper blade and drum-shaped lower blade in combination so that the difference in the edge angle between the disk-shaped upper blade and the drum-shaped lower blade is 0 to 15 °, more preferably 0 to 5 °. When the angle exceeds 15 °, shearing (biting) into the material to be cut proceeds from the sharp blade side, and the break point may deviate from the center.

  Reference numeral 401e1 denotes a mined surface of the disc-shaped upper blade 401e, 401e2 denotes an anti-mineral surface of the disc-shaped upper blade 401e, and 501e21 denotes an anti-mineral surface of the blade portion 501e2 provided on the piece portion 501e.

  X represents the distance of the gap 502e formed by the side of the piece 501e having the blade 501e2 and the end 501f2 of the piece member 501f1 of the piece 501f, and the distance X is preferably 1 to 100 mm, more preferably 1.5. ~ 40 mm. When the thickness is less than 1 mm, the contact pressure between the anti-mineral surface of the upper blade and the strip-shaped photosensitive material increases, and the strip-shaped photosensitive material may be damaged. If it exceeds 100 mm, the holding of the strip-shaped photosensitive material becomes unstable, and cutting failure may occur.

  The gap is a portion where the wide belt-shaped photosensitive material is not in contact with the wide belt-shaped photosensitive material, and can be set by providing a spacer having a smaller diameter than the drum-shaped lower blade. The depth of the gap 502e is preferably 5.0 to 10 mm.

  The overlap amount between the anti-mineral surface of the disk-shaped upper blade and the anti-mineral surface of the blade portion of the drum-shaped lower blade is preferably 0.1 to 1.0 mm, more preferably 0.2 to 0.5 mm. If it is less than 0.1 mm, the disc-shaped upper blade may come off the gap 503 and ride on the drum-shaped lower blade, and if it exceeds 1.0 mm, sharpness may be deteriorated.

  J shows the corner | angular part of the edge part of the piece member of the piece 501f. The corner J may be R-shaped or tapered.

  Reference numeral 607a denotes an end of one side of the narrow belt-shaped photosensitive material 607 that is cut by a disk-shaped upper blade and a drum-shaped lower blade and contacts the surface of the disk-shaped upper blade, and 603a is a disk-shaped upper blade and a drum-shaped blade. An end portion on one side of a narrow strip-shaped photosensitive material 603 that is cut by the lower blade and contacts the anti-mineral surface side of the disk-shaped upper blade is shown.

  Immediately after cutting the end portion 607a and the end portion 603a, the end portion 607a is in contact with the end portion 501f2 of the piece member 501f1, and is pushed into the gap 502e by the mined surface 401e2 of the disc-shaped upper blade 401e. The end portion 603a is in contact with the blade portion 501e2 of the piece member 501e3. At this time, since the diameter of the blade portion 501e2 is larger than the diameter of the end portion 501f2, the end portion 603a is above the end portion 607a. For this reason, the end portion 603a and the end portion 607a are prevented from rubbing immediately after cutting.

  The state of the end portion of the adjacent narrow strip photosensitive material immediately after cutting is the same when the drum-like lower blade shown in FIGS. 3 and 4 is used. In the case shown in FIG. 5, since the narrow strip photosensitive material is distributed up and down immediately after cutting, the edges of the adjacent narrow strip photosensitive materials are separated from each other, eliminating the risk of rubbing.

  FIG. 9 is a schematic flow diagram showing in stages the state from cutting to sorting of the wide strip photosensitive material by the cutting method shown in FIG.

  In the figure, E indicates an area before the wide belt-shaped photosensitive material 3 continuously conveyed (in the direction of the arrow in the figure) enters the cutting point W, F indicates an area cut at the cutting point Z, and G Indicates a region where the narrow-width photosensitive material is distributed vertically after cutting, and H indicates a region after the distribution is completed. The narrow strip photosensitive material is continuously conveyed (in the direction of the arrow in the figure) and wound up. L1 indicates a blade portion of a piece constituting the drum-shaped lower blade, L11 indicates an anti-mineral surface of the blade portion L1, and L2 indicates an end portion of the piece member of the piece constituting the drum-shaped lower blade. K1 represents the anti-mineral surface of the disk-shaped upper blade K, and K2 represents the mined surface. The wide belt-shaped photosensitive material 3 is composed of a disk-shaped upper blade and a drum-shaped lower blade, and a narrow-band photosensitive material S having an end located at the blade portion Ll of a piece constituting the drum-shaped lower blade, and a drum-shaped lower blade. It is cut into a narrow strip-shaped photosensitive material T having an end located at the end of the piece constituting the blade. This figure shows a state in which the photosensitive layer 3b is on the lower side and the support 3a is on the upper side, and cutting is performed from the support 3a side.

  Step 1 shows a state before cutting of the wide belt-shaped photosensitive material 3 supplied to the region E of the cutting device having the disk-shaped upper blade K and the drum-shaped lower blade L.

  Step 2 shows a state when the wide belt-shaped photosensitive material 3 is cut in the region F. In this region, the wide belt-shaped photosensitive material 3 is formed by a disk-shaped upper blade K and a drum-shaped lower blade L, and a narrow-band photosensitive material having an end located at a portion of the drum-shaped lower blade that does not have a blade portion. The material T is cut into a strip-shaped photosensitive material S having an end portion located at the blade portion of the piece portion of the drum-like lower blade. At this time, since the diameter of the blade portion L1 of the piece portion is larger than the diameter of the end portion of the piece member, the end portion of the narrow strip photosensitive material S is positioned higher than the end portion of the narrow strip photosensitive material T. Yes.

  Further, the end portion T1 on one side of the narrow belt-shaped photosensitive material T has a gap M (corresponding to the gap 502e in FIG. 8) formed by the mining surface K2 between the blade portion Ll and the end portion L2 having no piece blade portion. ).

  For this reason, immediately after cutting, the end portion of the narrow strip-shaped photosensitive material S and the end portion of the narrow strip-shaped photosensitive material T are in a state of being separated from each other in the vertical direction.

  Step 3 shows the state of the narrow belt-shaped photosensitive material in the G region. In this region, since the narrow belt-shaped photosensitive material is wound up, it is separated from the cutting point W and is distributed in the vertical direction. As a result of the sorting, the narrow strip photosensitive material S begins to separate from the blade portion Ll, and the narrow strip photosensitive material T begins to separate from the mined surface K2 of the disk-shaped upper blade K. The sorting in the vertical direction is preferably performed in the state shown in FIG.

  Step 4 shows the state of the narrow belt-shaped photosensitive material in the H region. In this region, the narrow strip photosensitive material is distributed up and down. When distributed vertically, the end T1 of the narrow strip-shaped photosensitive material T returns to the horizontal state from being bent by being pressed by the mining surface K2 of the disk-shaped upper blade K. However, at this stage, since the diameter of the blade portion L1 of the piece portion is larger than the diameter of the end portion of the piece member, the end portion of the narrow strip photosensitive material S is positioned higher than the end portion of the narrow strip photosensitive material T. In addition, the holding angle of the edge located at the blade portion of the narrow strip photosensitive material S at the time of sorting is shallower than the holding angle of the portion of the narrow strip photosensitive material T that does not have the blade portion. Therefore, the end S1 of the narrow strip photosensitive material S is in a higher position than the end T1 of the narrow strip photosensitive material T, and the end T1 of the narrow strip photosensitive material T is restored horizontally. Even in this case, the end T1 is not in contact with the end S1 of the narrow strip-shaped photosensitive material S.

  Step 4 'is a narrow width when the diameter of the blade part L1 of the piece part is cut using a conventional drum-like lower blade composed of pieces having the same size as the diameter of the end part of the piece member and is not distributed in the vertical direction The state of the edge part of the strip | belt-shaped photosensitive material S and the narrow strip | belt-shaped photosensitive material T is shown.

  In this case, when the end T1 of the narrow strip photosensitive material T that has been deformed by being pressed by the mined surface K2 of the disc-shaped upper blade K returns to the horizontal state, the end of the narrow strip photosensitive material T is returned. Since T1 and the end portion S1 of the narrow strip photosensitive material S are at the same position, the end portion of the narrow strip photosensitive material S returns to the end while rubbing against each other. It may cause peeling or generation of foreign matter.

The wide-band photosensitive material cut by the cutting apparatus of the present invention is not particularly limited, and examples thereof include color films, wide-band photosensitive materials for printing, medical photosensitive materials, photosensitive materials for heat development, and the like. This is effective for a heat-developable light-sensitive material having a low adhesion to the heat-developing material.
By cutting the wide belt-shaped photosensitive material with the drum-shaped lower blade and the disk-shaped upper blade, each of which has a relationship with the disk-shaped upper blade shown in FIGS. 1 to 9, the following effects can be obtained. Can be mentioned.

  1) Since the end portion of the narrow strip-shaped photosensitive material that has been cut does not come into contact without performing vertical sorting immediately after cutting, it has become possible to produce a narrow strip-shaped photosensitive material with stable end portions.

  2) Further, by performing the vertical sorting, it is possible to produce a narrow belt-shaped photosensitive material in which the quality of the end portion is further stabilized.

  3) Even when sorting in the vertical direction, it is not necessary to strictly manage the timing and angle of sorting, and management at the time of cutting becomes easy.

  The drum-like lower blade and the disk-like upper blade shown in FIGS. 1 to 9 are pivotally attached to a frame of a cutting device not shown in the figure via a bearing such as a ball bearing, The lower blade and the disk-shaped upper blade can be rotated by a motor (not shown).

  The tension applied to the wide strip photosensitive material is preferably 100 to 500 N / m width. When the width is less than 100 N / m, the wide belt-shaped photosensitive material 1 is slackened during conveyance and is likely to come into contact with the apparatus, which increases the risk of scratching, which is not preferable. When the width exceeds 500 N / m, the contact pressure between the film surface of the wide belt-shaped photosensitive material and the transport roll increases, which is not preferable because it is easily damaged.

  The cutting method shown in FIGS. 1 to 9 is a cutting method using a rotating disk-shaped upper blade and a drum-shaped lower blade. Is a so-called shear cut method. In the cutting shown in the figure, it is preferable to perform the cutting with the coated surface of the wide belt-shaped photosensitive material 1 on the drum-like lower blade side.

  EXAMPLES Hereinafter, although an Example is given and this invention is demonstrated in detail, of course, this Example shows an example and this invention is not limited to these.

Example 1
<< Preparation of photothermographic material >>
A photothermographic material was prepared according to the following method.

(Production of support)
Corona discharge treatment of 8 W / m ² · min on both sides of a polyethylene terephthalate film with a thickness of 175 µm, a width of 1200 mm, and a length of 1500 m, colored blue with a concentration of 0.160 (measured with a Konica Densitometer PDA-65) Was given.

(Preparation of photosensitive emulsion)
[Preparation of photosensitive silver halide emulsion]
After dissolving 7.5 g of ossein gelatin having an average molecular weight of 100,000 and 10 mg of potassium bromide in 900 ml of water and adjusting the temperature to 35 ° C. and pH to 3.0, 370 ml of an aqueous solution containing 74 g of silver nitrate, (98/2 ) While maintaining a pAg of 7.7 in an aqueous solution containing potassium bromide and potassium iodide in an equimolar ratio of the above-mentioned silver nitrate and 370 ml of an aqueous solution containing 1 × 10 ⁻⁴ mole of iridium chloride per mole of silver. Over 10 minutes. Thereafter, 0.3 g of 4-hydroxy-6-methyl-1,3,3a, 7-tetrazaindene was added, the pH was adjusted to 5 with NaOH, the average particle size was 0.05 μm, and the particle size variation coefficient was 12. %, [100] face ratio 87% cubic silver iodobromide grains were obtained. This emulsion was coagulated and precipitated using a gelatin flocculant. After desalting, 0.1 g of phenoxyethanol was added to adjust the pH to 5.9 and pAg 7.5 to obtain a photosensitive silver halide emulsion.

(Preparation of powdered organic silver salt)
In 4720 ml of pure water, 111.4 g of behenic acid, 83.8 g of arachidic acid, and 54.9 g of stearic acid were dissolved at 80 ° C. Next, 540.2 ml of a 1.5 mol / L sodium hydroxide aqueous solution was added while stirring at high speed, 6.9 ml of concentrated nitric acid was added, and the mixture was cooled to 55 ° C. to obtain an organic acid sodium solution. While maintaining the temperature of the organic acid sodium solution at 55 ° C., the above-described photosensitive silver halide emulsion equivalent to 0.038 mol as silver and 450 ml of pure water were added and stirred for 5 minutes. Next, 760.6 ml of a 1 mol / L silver nitrate solution was added over 2 minutes, stirred for another 20 minutes, and then water-soluble salts were removed by filtration. Thereafter, washing with deionized water and filtration are repeated until the electrical conductivity of the filtrate reaches 2 μS / cm, and after centrifugal dehydration, drying is performed under a heated nitrogen stream until there is no decrease in mass, and the powdered organic silver salt Got.

[Preparation of photosensitive emulsion dispersion]
14.57 g of polyvinyl butyral powder (Monsanto Butvar B-79) is dissolved in 1457 g of methyl ethyl ketone (hereinafter abbreviated as MEK), and 500 g of powdered organic silver salt is gradually added while stirring with a dissolver type homogenizer. Mixed. Thereafter, dispersion was carried out at a peripheral speed of 13 m and a residence time in the mill of 0.5 minutes using a media type dispersing machine (manufactured by gettzmann) filled with 80% of 1 mm diameter Zr beads (manufactured by Toray) to prepare a photosensitive emulsion dispersion. did.

(Preparation of coating solution)
[Preparation of Coating Solution Em-1 for Photosensitive Layer Upper Layer]
Using 500 g of the prepared photosensitive emulsion dispersion, 100 g of MEK was added with stirring under a nitrogen stream and the mixture was kept at 24 ° C., and then sodium thiosulfate as a chemical sensitizer was 8 × 10 ⁻⁴ per mol of silver. Mole was added and chemical aging was performed for 30 minutes. After 30 minutes, 2.50 ml of a 10% methanol solution of bis (dimethylacetamide) dibromobromate was added and stirred for 1 hour. Further, 4 ml of a 10% solution of calcium bromide in methanol was added, followed by stirring for 15 minutes. Next, 1.8 ml of a 1: 5 mixed solution (20% by mass methanol solution of dye stabilizer-1) was added in a mass ratio of dye stabilizer-1 and potassium acetate, and the mixture was stirred for 15 minutes. Next, after adding 7 ml of a mixed solution of infrared sensitizing dye-1 and dye stabilizer-2 (mixing mass ratio 1: 250, 0.1 wt% MEK solution as a sensitizing dye) and stirring for 1 hour, The temperature was lowered to 13 ° C., and the mixture was further stirred for 30 minutes. While keeping this at 13 ° C., 48 g of polyvinyl butyral was added and dissolved sufficiently, and then the following additives were added to prepare photosensitive layer upper layer coating solution Em-1. All the above operations were performed under a nitrogen stream.

Desmodu N3300 (Morbey, aliphatic isocyanate)
1.10g
Antifoggant (2- (tribromomethylsulfonyl) -pyridine)
1.55g
1,1-bis (2-hydroxy-3,5-dimethylphenyl) -2-methylpropane 15 g
Tetrachlorophthalic acid 0.5g
4-methylphthalic acid 0.5g
Dye-1 Amount at which the absorbance at the absorption maximum of the photosensitive layer becomes 0.9

[Preparation of Coating Solution Em-2 for Photosensitive Layer Lower Layer]
A photosensitive layer lower layer coating solution Em-2 was prepared in the same manner as in the preparation of the photosensitive layer upper layer coating solution Em-1, except that 0.44 g of the highest concentration improver-1 was newly added.

(Preparation of surface protective layer coating solution)
While stirring 865 g of MEK, 96 g of cellulose acetate butyrate (manufactured by Eastman Chemical, CAB171-15), 4.5 g of polymethylmethacrylic acid (Rohm & Haas, Paraloid A-21), vinyl sulfone compound HD- 1.5 g of 1 (* 1), 1.0 g of benzotriazole, and 1.0 g of F-based activator (Asahi Glass Co., Surflon KH40) were added and dissolved. Next, 30 g of the following matting agent dispersion was added, and 15 g of phthalazine was added while stirring to prepare a surface protective layer coating solution.

(* 1) HD-1: 1,3- {bis (vinylsulfonyl)}-2-hydroxypropane <Preparation of matting agent dispersion>
Dissolve 7.5 g of cellulose acetate butyrate (Eastman Chemical, CAB171-15) in 42.5 g of MEK, and add 5 g of calcium carbonate (Special Minerals, Super-Pflex200) to the dissolver type homogenizer. Then, a matting agent dispersion was prepared by dispersing at 8000 rpm for 30 minutes.

[Preparation of back surface coating solution]
While stirring MEK830 g, 84.2 g of cellulose acetate butyrate (manufactured by Eastman Chemical, CAB381-20) and 4.5 g of polyester resin (manufactured by Boston, VitelPE2200B) were added and dissolved. Dye-1 was added to the dissolved solution so that the absorbance at the absorption maximum of the dye in the coating sample on the back surface was 0.35, and further a fluorine-based activator dissolved in 43.2 g of methanol (manufactured by Asahi Glass Co., Ltd., 4.5 g of Surflon KH40) and 2.3 g of a fluorine-based activator (Dainippon Ink & Co., MegaFag F120K) were added and stirred well until dissolved. Finally, 75 g of silica (manufactured by WR Grace, Syloid 64X6000) dispersed in MEK at a concentration of 1 mass% with a dissolver type homogenizer was added and stirred.

(Coating on the back side and photosensitive layer side of the support)
The prepared back surface coating solution is applied to the prepared support by an extrusion coater so that the dry film thickness is 3.5 μm, and is dried for 5 minutes using a drying air having a drying temperature of 100 ° C. and a dew point temperature of 10 ° C. And dried.

Thereafter, the photosensitive layer lower layer, the photosensitive layer upper layer, and the surface protective layer are simultaneously coated using an extrusion coater from the support side using the prepared photosensitive layer coating solution and each surface protective layer coating solution. Thus, a photothermographic material was prepared. The coating is performed so that the lower layer of the photosensitive layer has an applied silver amount of 0.5 g / m ² , the upper layer of the photosensitive layer has an applied silver amount of 0.6 g / m ² , and the surface protective layer has a dry film thickness of 1.45 μm. went. Thereafter, drying was performed for 5 minutes using a drying air having a drying temperature of 75 ° C. and a dew point temperature of 10 ° C. to prepare a photothermographic material having a total thickness of 200 μm.

(Preparation of drum-shaped lower blade)
As shown in Table 1, the drum-shaped lower blade shown in FIG. 2B was prepared by changing the diameter of the piece blade portion and the diameter of the piece member having no blade portion, and 1-1 to 1- It was set to 11.

a *: Diameter of the blade part b *: Diameter of the piece member of the piece having no blade part X *: Difference between the diameter of the piece part and the piece member of the piece having no blade part Y *: Photothermographic material (Applicable to wide belt-shaped photosensitive material)
(Cutting)
The prepared photothermographic material 1500m was continuously cut with a disk-like upper blade as shown in FIG. 2A using the prepared drum-like lower blades 1-1 to 1-11, and immediately after cutting, Without being distributed in the direction, it was transported horizontally and wound up to produce narrow strip-shaped photosensitive materials, which were designated as Samples 101 to 110. The cutting edge angle of the disc-shaped upper blade used for cutting is 85 °, the cutting edge angle provided on the piece piece member is 90 °, the rotational speed (circumferential speed) of the disk-shaped upper blade is 100 m / min, and the bottom of the drum shape The rotational speed (circumferential speed) of the blade was 100 m / min, the distance between the gaps of each piece part was 2.0 mm, the depth was 8.0 mm, and R at the end of the piece member where no blade part was arranged was R8. The amount of overlap between the disk-shaped upper blade and the drum-shaped lower blade was 0.3 mm. The conveyance speed of the photothermographic material was 100 m / min, the tension was 300 N / m width, and the coating film surface was on the lower side. The cutting width was 250 mm.

(Evaluation)
Table 2 shows the results of observing the cut surfaces of the obtained samples 101 to 111 and evaluating them according to the following evaluation ranks. For the observation of the state of the cut surface, 1 m was taken out from the location of 500 m from the start of cutting for each sample and observed with a magnifying magnifying glass at a magnification of 15 times.

Evaluation rank A: No peeling due to peeling or rubbing of the photosensitive layer. ○: No peeling of the photosensitive layer, and rubbing due to rubbing to the extent that does not cause a problem in practice. Δ: Peeling of the photosensitive layer to an extent that does not cause a problem in practice. Scuffing due to rubbing is observed. ×: Peeling due to rubbing of the photosensitive layer and rubbing due to rubbing is recognized.

  The effect of the present invention was confirmed.

Example 2
When the samples 102, 106, and 110 of Example 1 were prepared, as shown in FIG. 5, the up-and-down sorting was performed by changing the holding angle to the pieces as shown in Table 3 and winding up to form a narrow strip-shaped photosensitive film. Materials were prepared as Samples 201 to 210. The other conditions were the same as in Example 1.
(Evaluation)
Table 3 shows the results of the evaluation performed in the same manner as in Example 1 and with the same evaluation rank as in Example 1.

  Sample No. Reference numerals 201 to 205 denote samples prepared by cutting under the conditions of the sample 102 of Example 1, and performing vertical sorting immediately after cutting.

  Sample No. Reference numerals 206 to 210 denote samples prepared by cutting under the conditions of the sample 106 of Example 1, and performing vertical sorting immediately after cutting.

Sample No. Reference numerals 211 to 215 denote samples prepared by cutting under the conditions of the sample 110 of Example 1, and performing vertical sorting immediately after cutting.
* A: Indicates the holding angle on the take-up side immediately after cutting of the end of the narrow belt-shaped photosensitive material located at the blade portion of the piece portion of the drum-like lower blade.
* B: Indicates the holding angle on the winding side immediately after cutting the end portion of the narrow strip-shaped photosensitive material located at the piece portion of the drum-like lower blade.

  The effectiveness of the present invention was confirmed.

It is the schematic which shows the relationship between the disk shaped upper blade of this invention, and a drum shaped lower blade. It is the schematic which shows an example of the cutting method using the cutting device which has two or more sets of rotary blades which consist of a disk-shaped upper blade and drum-shaped lower blade shown in FIG. It is a schematic fragmentary sectional view which shows the combination of the disk shaped upper blade shown in (b) of FIG. 2, and another drum-shaped lower blade. FIG. 4 is a schematic partial cross-sectional view showing a combination of a disc-shaped upper blade shown in FIG. 2B and a drum-like lower blade other than those shown in FIG. 2B and FIG. 3. It is the schematic which shows another example of the cutting method using the cutting apparatus shown in FIG. It is a cross-sectional schematic diagram which shows the state of the narrow strip | belt-shaped photosensitive material after the cutting | disconnection shown by (a) of FIG. FIG. 6 is a schematic cross-sectional view showing a state in which the narrow strip-shaped photosensitive material after cutting shown in FIG. It is an expansion schematic sectional drawing of the part shown by P of (a) of FIG. FIG. 6 is a schematic flow diagram showing step by step a state from cutting to sorting of a wide strip photosensitive material by the cutting method shown in FIG. 5.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Disc-shaped upper blade 101 Mineral surface 102 Anti-mineral surface 2 Drum-shaped lower blade 201 Piece part (piece part A)
201a, 501a1, 501c1, 501c2, 501e1, 501e2, 501g1, 501g2, 901a1-901g1 blade part 202 piece part (piece part B)
202a, 901a2-901h2 Part having no blade part 3 Wide strip-shaped photosensitive material 4 Upper blade part 401a-401g, 801a-801g, K disk-shaped upper blade 401b1, 801b1, K1, L11 Mineral surface 401b2, 401e2, 801b2, K2 Mineral surface 5, 9 Lower blade portion 501, 901, L Drum-shaped lower blade 501b, 501d, 501f, 501g, 901a-901h Piece portion 6, 10, S, T Narrow strip-shaped photosensitive material 901b3, J corner portion X distance Z Cutting point θ3, θ4 Holding angle

Claims (12)

Using at least one set of rotary blades having a set of a disk-shaped upper blade and a drum-shaped lower blade rotating in opposite directions, the wide belt-shaped photosensitive material that travels is moved along the traveling direction. In a cutting method for continuously cutting at least two narrow strips of photosensitive material,
The drum-shaped lower blade is composed of at least piece A and piece B,
The piece A and the piece B form a gap into which the disk-shaped upper blade enters when cutting between a portion having a blade portion corresponding to the disk-shaped upper blade and a portion having no blade portion,
The method for cutting a wide belt-shaped photosensitive material, wherein the piece A has at least a portion having a relationship represented by a formula 1) with respect to a diameter of an end portion of the piece B forming the gap.
Formula 1) 1 ≦ X / Y ≦ 60
In the formula, X represents the difference between the maximum diameter of the piece A and the diameter of the end portion of the piece B, and Y represents the thickness of the wide belt-shaped photosensitive material. The holding angle of the end portion of the narrow strip-shaped photosensitive material positioned on the piece A is made shallower than the holding angle of the end portion of the narrow strip-shaped photosensitive material positioned on the piece B, and is collected and collected in at least two directions immediately after cutting. The method for cutting a wide strip photosensitive material according to claim 1. The edge of the narrow strip photosensitive material located on the piece A and the end of the narrow strip photosensitive material located on the piece B are substantially held with respect to the piece A and the piece B immediately after cutting. 2. The method for cutting a wide belt-shaped photosensitive material according to claim 1, wherein the sheet is conveyed in a state having no angle and collected at different positions. 4. The wide band-shaped photosensitive material cutting according to claim 1, wherein the piece A has blade portions on both sides of the piece member, and the piece B has no blade portion on the piece member. Method. The method for cutting a wide belt-shaped photosensitive material according to any one of claims 1 to 3, wherein the piece A and the piece B have a blade portion on one side of a piece member. 6. The method for cutting a wide belt-shaped photosensitive material according to claim 1, wherein the piece member and the blade portion are individually rotated. Using at least one set of rotary blades having a set of a disk-shaped upper blade and a drum-shaped lower blade rotating in opposite directions, the wide belt-shaped photosensitive material that travels is moved along the traveling direction. In a cutting device for a wide belt-shaped photosensitive material that continuously cuts at least two narrow strips of photosensitive material,
The drum-shaped lower blade is composed of at least piece A and piece B,
The piece A and the piece B form a gap into which the disk-shaped upper blade enters when cutting between a portion having a blade portion corresponding to the disk-shaped upper blade and a portion having no blade portion,
The strip A for a wide belt-shaped photosensitive material, wherein the piece A has at least a portion having a relationship represented by the formula 1) with respect to the diameter of the end of the piece B forming the gap. . The holding angle of the end portion of the narrow strip-shaped photosensitive material positioned on the piece A is made shallower than the holding angle of the end portion of the narrow strip-shaped photosensitive material positioned on the piece B, and is collected and collected in at least two directions immediately after cutting. The wide band photosensitive material cutting device according to claim 7, wherein: The edge of the narrow strip photosensitive material located on the piece A and the end of the narrow strip photosensitive material located on the piece B are substantially held with respect to the piece A and the piece B immediately after cutting. 8. The wide band-shaped photosensitive material cutting device according to claim 7, wherein the sheet is conveyed in a state having no angle and collected at different positions. 10. The wide strip-shaped photosensitive material cutting according to claim 7, wherein the piece A has blade portions on both sides of the piece member, and the piece B does not have a blade portion on the piece member. apparatus. 10. The wide band-shaped photosensitive material cutting device according to claim 7, wherein the piece A and the piece B have a blade portion on one side of the piece member. The wide band-shaped photosensitive material cutting device according to any one of claims 7 to 11, wherein the piece member and the blade portion rotate individually.

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