JP5785292B1 - Receiving roller for slitter, ring-shaped lower blade provided on receiving roller for slitter - Google Patents

Abstract

Provided is a slitter receiving roller capable of firmly fixing a ring-shaped lower blade without damaging the roller body, and capable of releasing only a part of a plurality of ring-shaped lower blades. . A male screw 15 screwed into a female screw hole 14 is tightened, and a tip portion of the male screw 15 is projected into a central portion 11a of a through hole 11. The male screw 15 is further tightened, and the bottom 11c of the through hole 11 is pressed at the tip. Since the thickness of the bottom portion 11c is set to be large at the center and small at both ends, it is elastically deformed so that the center of the bottom 11c protrudes downward. As a result, the pressing convex portion 12 is pressed against the outer peripheral surface of the roller main body 3, and the pair of supporting convex portions 18 are also pressed into contact with the outer peripheral surface of the roller main body 3. Therefore, the ring-shaped lower blade 5 is supported at three points by the press-contact convex portion 12 and the pair of support convex portions 18. [Selection] Figure 4

Description

  The present invention relates to a slitter receiving roller, and more particularly to a slitter receiving roller having a ring-shaped lower blade fixed to a roller body, and a ring-shaped lower blade provided in the slitter receiving roller.

There is a slitter that slits a wide material (hereinafter referred to as the original fabric) in a scroll of paper, plastic file, etc. into a plurality of products along the length direction. A receiving roller having a lower blade disposed to face each other is provided. Then, while receiving the original fabric and running on the roller, the disc-shaped upper blade and the ring-shaped lower blade are slit.
In the sheet-like member cutting device (slitter) disclosed in Patent Document 1, a plurality of receiving rollers (ring-shaped lower blades) are fixed to a shaft (roller body). Patent Document 1 does not disclose a method for fixing the receiving roller to the shaft, but it is usually fixed by a push screw.

  Moreover, fixing a ring-shaped lower blade using an air shaft as shown to patent document 2 is also performed. In this case, the ring-shaped lower blade is fixed by fitting the ring-shaped lower blade to the air shaft, supplying air to the air tube, and projecting the lug from the outer surface of the shuff body.

JP 2008-87120 A JP 2001-10750 A

  However, if the ring-shaped lower blade is fixed to the roller main body with a push screw, the roller main body will be damaged, and the inner surface of the ring-shaped lower blade will be caught by the roller main body scratch, making it impossible to move the ring-shaped lower blade. There is a risk that. In order to adjust or change the width dimension of a product manufactured by slitting the raw fabric, it is necessary to change the position of the ring-shaped lower blade. Accordingly, the ring-shaped lower blade must be able to move smoothly with the roller body fitted.

Also, in the method of fixing the ring-shaped lower blade using the air shaft, all lugs will sunk from the outer peripheral surface of the shaft body when the air tube is pulled out, so the fixing to all the ring-shaped lower blades is released As a result, there is a problem that it is difficult to change the position of the ring-shaped lower blade.
Further, since the ring-shaped lower blade is fixed by the contact of the lug protruding by the air pressure, the fixing of the ring-shaped lower blade is not so strong. For this reason, there exists a possibility that a ring-shaped lower blade may move carelessly.

  The present invention has been made paying attention to the above-mentioned conventional problems, and can firmly fix the ring-shaped lower blade without damaging the roller body, and only a part of the plurality of ring-shaped lower blades. An object of the present invention is to provide a receiving roller for a slitter that can be unfixed.

  SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and the invention of claim 1 is a method of slitting a wide material (raw material) in a roll of paper, plastic file or the like into a plurality of products along the length direction. And a ring-shaped lower blade fitted to the roller main body, the ring-shaped lower blade is operable in the axial direction of the roller main body, and the ring-shaped lower blade is a desired roller. In the slitter receiving roller comprising a lower blade fixing means for fixing at a position, the lower blade fixing means includes a through hole having openings on both side surfaces of the ring-shaped lower blade, an outer peripheral surface of the ring-shaped lower blade, and the It consists of a female screw hole communicating with the through hole and a male screw screwed into the female screw hole. The male screw is screwed into the female screw hole and tightened, and the bottom inner surface of the through hole is pressed by the tip of the male screw. And said penetration The bottom of the bottom external surface is elastically deformed is pressed against the roller body of a receiving roller for slitter, characterized in that to fix the ring-shaped lower blade to the roller body.

  According to a second aspect of the present invention, in the slitter receiving roller according to the first aspect, the dimension between the bottom inner surface and the bottom outer surface of the through hole is set so that the central portion of the through hole is large and both end portions are small. It is a receiving roller for slitters characterized by being.

  According to a third aspect of the present invention, there is provided the slitter receiving roller according to the first or second aspect, wherein a pressing convex portion is formed on the outer surface of the bottom portion corresponding to the central portion of the through hole. It is a receiving roller.

  According to a fourth aspect of the present invention, in the slitter receiving roller according to the third aspect, an opposing concave portion is formed on an inner peripheral surface of the ring-shaped lower blade, and the opposing concave portion is a shaft of the press-contact convex portion and the ring-shaped lower blade. The slitter receiving roller is provided on the opposite side across the core and has support convex portions on both sides of the opposing concave portion.

  According to a fifth aspect of the present invention, there is provided a ring-shaped lower blade provided in the slitter receiving roller according to any one of the first to fourth aspects.

According to the slitting roller according to the present invention, the ring-shaped lower blade can be firmly fixed without scratching the roller body.
Further, since it is possible to release only a part of the plurality of ring-shaped lower blades, it becomes easy to change the position of the ring-shaped lower blade.

It is a perspective view of the receiving roller for slitters concerning an embodiment of the invention. It is a perspective view of the ring-shaped lower blade with which the receiving roller for slitters of FIG. 1 is equipped. It is AA sectional drawing of the state of FIG. 1 of the state which has not tightened the external thread for fixing a ring-shaped lower blade to a roller main body. It is AA sectional drawing of the state of FIG. 1 of the state which fastened the external thread for fixing a ring-shaped lower blade to a roller main body.

A slitting roller 1 according to an embodiment of the present invention will be described with reference to the drawings.
The slitter receiving roller 1 is mounted on a slitter that slits a wide material (raw material) into a plurality of products along the length direction in a roll of paper, plastic file or the like.
The slitting roller 1 is composed of a substantially cylindrical roller body 3 and a ring-shaped lower blade 5 fitted to the roller body 3.

The detailed structure of the ring-shaped lower blade 5 will be described.
The ring-shaped lower blade 5 has two step portions formed on the outer peripheral surface thereof, and has a small diameter portion 6, a medium diameter portion 7 and a large diameter portion 8.
Further, the ring-shaped lower blade 5 is formed with through holes 11 having openings on both side surfaces thereof. A central portion 11a of the through hole 11 is formed in a relatively flat and substantially rectangular plate shape, and both end portions 11b sandwiching the central portion 11a are formed in a columnar shape. The height dimension of both end portions 11b is set larger than the height dimension of the central portion 11a. Therefore, the thickness dimension of the bottom part 11c of the through hole 11 is set so that the center part is large and both end parts are small.

A pressure contact convex portion 12 is formed on the outer surface of the bottom of the through hole 11, and the pressure contact convex portion 12 corresponds to the central portion 11a. A counter recess 13 is formed on the inner peripheral surface of the ring-shaped lower blade 5, and the counter recess 13 is provided on the opposite side of the through hole 11 and the axis C of the ring-shaped lower blade 5. Support convex portions 18 are formed on both sides of the opposing concave portion 13. Further, a concave portion 16 is formed between the support convex portion 18 and the pressure contact convex portion 12.
The fan-shaped central angle θ1 formed by connecting both ends of the press-contact convex portion 12 and the axis C is approximately 25 degrees, and the fan-shaped formed by connecting both ends of the opposed recess 13 and the axis C. The angle of the central angle θ2 is approximately 60 degrees. Further, the fan-shaped central angle θ3 formed by connecting both ends of the support convex portion 18 and the axis C is approximately 50 degrees, and the fan formed by connecting both ends of the recess 16 and the axis C. The mold center angle θ4 is approximately 88 degrees.

Reference numeral 14 denotes a female screw hole, and the female screw hole 14 communicates with the outer peripheral surface of the ring-shaped lower blade 5 and the through hole 11. The female screw hole 14 is formed in the small diameter portion 6 and is provided at the approximate center in the width (length) direction of the ring-shaped lower blade 5.
Reference numeral 15 denotes a male screw, which is a so-called headless screw called a potato screw, and has a hexagonal wrench hole 15a in plan view into which a hexagon wrench is inserted.
The ring-shaped lower blade 5 is configured as described above.
The roller body 3 is configured in a substantially cylindrical shape, and is set to have a diameter that can be operated in the axial direction with the ring-shaped lower blade 5 fitted. In addition, it has a small diameter part (not shown) in both ends.

A method of using the receiving roller 1 for the slitter will be described.
As shown in FIG. 1, the ring-shaped lower blade 5 is fitted to the roller body 3, and the ring-shaped lower blade 5 is moved in the axial direction of the roller body 3 to be arranged at a desired position. Then, the male screw 15 screwed into the female screw hole 14 is tightened by turning a hexagon wrench inserted into the wrench hole 15 a, and the tip thereof is projected into the central portion 11 a of the through hole 11. The male screw 15 is further tightened, and the bottom 11c of the through hole 11 is pressed at the tip as shown in FIG. Since the thickness of the bottom portion 11c is set to be large at the center and small at both ends, the bottom 11c is elastically deformed so that the center of the bottom 11c protrudes downward in FIG. As a result, the pressing convex portion 12 is pressed against the outer peripheral surface of the roller main body 3, and the pair of supporting convex portions 18 are also pressed into contact with the outer peripheral surface of the roller main body 3. Therefore, the ring-shaped lower blade 5 is supported at three points by the press-contact convex portion 12 and the pair of support convex portions 18. Therefore, the ring-shaped lower blade 5 is firmly fixed to the roller body 3.

  As described above, the pressure contact convex portion 12 and the support convex portion 18 are in pressure contact with the outer peripheral surface of the roller main body 3, so that the tip end portion of the male screw 15 does not directly contact the outer peripheral surface of the roller main body 3. Therefore, the roller body 3 is not damaged.

  When changing the position of the ring-shaped lower blade 5 attached to the roller body 3, the male screw 15 of the ring-shaped lower blade 5 whose position is to be changed is loosened, and the tip of the male screw 15 is pressed against the bottom 11c of the through hole 11 Is released. As a result, the central portion of the bottom portion 11c is elastically deformed so as to retract upward in FIG. 4, and the press contact of the press contact convex portion 12 to the outer peripheral surface of the roller main body 3 is released. Accordingly, the roller main body of the pair of support convex portions 18 3 is also released (see FIG. 3).

  Next, the ring-shaped lower blade 5 is moved in the axial direction of the roller body 3 to be changed to a desired position. The male screw 15 screwed into the female screw hole 14 is tightened as described above, and the bottom portion 11c of the through hole 11 is pressed with the tip portion as shown in FIG. Thereby, the central part of the bottom part 11c is elastically deformed so as to protrude downward in FIG. Then, the ring-shaped lower blade 5 is fixed to the roller body 3 by bringing the pressure contact protrusion 12 and the support protrusion 18 into pressure contact with the outer peripheral surface of the roller body 3.

  Thus, according to the receiving roller 1 for slitters, the ring-shaped lower blade 5 can be firmly fixed without scratching the roller body 3. In addition, since it is possible to release only a part of the plurality of ring-shaped lower blades, it is easy to change the position of the ring-shaped lower blade 5.

The embodiment of the present invention has been described in detail above. However, the specific configuration is not limited to this embodiment, and the present invention can be changed even if there is a design change without departing from the gist of the present invention. included.
For example, the shape of the through hole 11 is formed in a substantially rectangular plate shape with a relatively flat central portion 11a, and both end portions 11b sandwiching the central portion 11a are formed in a cylindrical shape. It is sufficient that the central portion of the shape is easily elastically deformed.
Further, the angles from the central angles θ1 to θ4 may be changed as appropriate.

  The receiving roller for slitter of the present invention has applicability in the papermaking machine manufacturing industry and the like.

DESCRIPTION OF SYMBOLS 1 ... Receiving roller for slitters 3 ... Roller body 5 ... Ring-shaped lower blade 6 ... Small diameter portion of ring-shaped lower blade 7 ... Medium diameter portion of ring-shaped lower blade 8 ... Large diameter portion of ring-shaped lower blade 11 ... Through hole 11a: Center portion of the through hole 11b ... Both end portions of the through hole 11c ... Bottom portion of the through hole 12 ... Pressure contact convex portion 13 ... Opposite concave portion 14 ... Female screw hole 15 ... Male screw 15a ... Wrench hole 16 ... Concavity 18 ... Support convex portion C ... Axis of the ring-shaped lower blade

Claims (5)

  A slitting receiving roller for slitting slits into a plurality of products along the length of a wide material (raw material) in a roll of paper, plastic file, etc., and a ring-shaped lower blade fitted to the roller body And the ring-shaped lower blade is operable in the axial direction of the roller body, and includes a lower blade fixing means for fixing the ring-shaped lower blade at a desired position. The means comprises a through-hole having openings on both side surfaces of the ring-shaped lower blade, a female screw hole communicating with the outer peripheral surface of the ring-shaped lower blade and the through-hole, and a male screw screwed into the female screw hole, The male screw is screwed into the female screw hole and tightened. ring Receiving roller for slitter, characterized in that to fix the lower blade to the roller body.   2. The slitter receiving roller according to claim 1, wherein a dimension between a bottom inner surface and a bottom outer surface of the through hole is set such that a central portion of the through hole is large and both end portions are small. Receiving roller.   3. The slitter receiving roller according to claim 1 or 2, wherein a pressing convex portion is formed on the outer surface of the bottom portion corresponding to the central portion of the through hole.   4. The slitter receiving roller according to claim 3, wherein an opposing concave portion is formed on the inner peripheral surface of the ring-shaped lower blade, and the opposing concave portion is located on the opposite side across the axial center of the press-contact convex portion and the ring-shaped lower blade. A slitting receiving roller, comprising: a supporting convex portion formed on both sides of the opposing concave portion.   5. A ring-shaped lower blade provided on the slitter receiving roller according to claim 1.

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