JP2005349482A - Paper cutting and releasing device of rolled paper - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for surely cutting the outer layer part of rolled paper along the width direction as pre-processing for the rolled paper, the leading edge of which is fixed to the outer layer surface. <P>SOLUTION: This device includes: an elevating table 1 for rotating the rolled paper R and a cutter head 6 moved in the width direction of the roller paper R to cut the outer layer part thereof. The cutter head 6 includes: a blade fitting part 26 to which a cutter blade 25 is fitted; a spatula-like sliding plate 27 provided on the lower part of the part 26; and a curling member 32 disposed in the adjacent position. The gliding plate 27 is inserted from the position of the leading edge S of the roller paper below the outermost layer R1 with the tip part 27A thereof brought into contact with the outer layer side edge part of the rolled paper R rotated in the unwinding direction. While the cutter head 6 is moved in the width direction of the rolled paper R after the gliding plate 27 is inserted to the rolled paper R, the outer layer part of the rolled paper R is cut by the cutter blade 25, and at the time, the cut edge C on the unwinding direction side of the rolled paper R is raised on the outer layer surface of the rolled paper R by the curling member 32. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an apparatus for unrolling a roll paper whose start end is fixed to the surface of an outer layer with an adhesive tape or the like, and enabling its unwinding (unwinding).

  In general, the roll paper used as a printing stock for mass production of newspapers and books is fixed to the outer layer surface with the adhesive tape T1, etc., except for the side edges as shown in FIG. 10A. Therefore, pre-processing called tailoring processing is performed at the time of use.

  Such pre-processing is a first step (B) in which a cut L is made in the outer layer portion along the width direction of the roll paper R as shown in FIG. The second step (C) in which the damaged portion D including the adhesive tape T1 is cut by cutting again, and the tab T2 with a cut is attached to the feeding end of the roll paper from which the stained portion D has been cut off. 3 process (D), 4th process (E) which sticks double-sided tape T3 on the one end part of tab T2 along the delivery end, and the end of tab T2 is wound up on the outer layer surface of roll paper by winding up a delivery part It consists of a fifth step (F) for bonding.

  Then, according to the roll paper that has been subjected to the pretreatment as described above, immediately before the remaining amount of paper being supplied runs out, it is adhered to the double-sided tape T3 of the next roll paper to be fed. Thus, it is possible to continue feeding from a new roll paper without interrupting paper feeding.

  Here, as the above-mentioned first step (paper release step) for unrolling the roll paper R with the start edge S fixed by the adhesive tape T1 or the like, the inside of the roll paper (winding paper) from the start end side edge thereof. After forming a cutter guide port on the side end surface of the roll paper by inserting the gap forming member, a cutter member having a guide portion and a cutting blade portion is inserted into the cutter guide port, and this is inserted in the width direction of the roll paper. (For example, patent document 1).

Japanese Patent No. 2789003 (Claims, FIGS. 1 to 10)

  However, according to Patent Document 1, since the bulging portion (gap forming action portion) is formed in the gap forming member so as to form the cutter guide port on the side end surface of the roll paper, the roll paper is firmly wound. On the other hand, it is difficult to sink the gap forming member, and if the height of the bulging portion is set small so that the sinking is surely performed, the opening degree of the cutter guide port is also small, so that the cutter member cannot be inserted into the guide port. There is a fear. In particular, due to the presence of the bulging portion, there is a possibility that the side edge of the roll paper is pulled out at the position where the air gap forming member has entered, and the cutter guide port is not formed.

  In addition, since the cut portion of the roll paper by the cutter member comes into close contact with the surface on the inner layer side by the action of static electricity after passing through the cutter member, it becomes difficult to feed out the roll paper from the cut portion. That is, the transition from the state of FIG. 10B to the state of FIG. 10C is difficult, and roll paper pretreatment may not be smoothly performed as a whole.

  Further, since the penetration of the gap forming member with respect to the roll paper is detected by the phototube, there is a risk of erroneous detection due to the influence of dust or the like.

  Further, in Patent Document 1, compressed air is blown onto the edge of the roll paper at the start end side so that the gap forming member is embedded in the roll paper. However, the adjustment of the injection angle is unexpectedly difficult and the adjustment is difficult. If it is inappropriate, not only does the leading edge of the roll paper not float up, but it can also cause the reverse effect of pressing it.

  The present invention has been made in view of the circumstances as described above, and its main purpose is for pretreatment of the roll paper whose start end is fixed to the surface of the outer layer, and the outer layer portion of the roll paper along the width direction thereof. It is another object of the present invention to provide an apparatus that can reliably cut.

  In order to achieve the above object, the present invention provides a roll paper cutting and unwrapping device for cutting in the width direction an outer layer portion of a roll paper whose start end is fixed to the outer layer surface except at least its side edges. A roll paper rotating means for rotating the paper, and the leading edge portion is brought into sliding contact with the outer layer side edge of the roll paper rotated in the rewinding direction opposite to the winding direction by the roll paper rotating means. A cutter head which has a bowl-shaped sliding plate inserted under the outermost layer from the starting end position of the roll paper and is provided so as to be movable in the width direction of the roll paper, and has reached the tip of the sliding plate A sensor for detecting the roll paper and stopping the roll paper rotating means, and the cutter head has a blade mounting portion for arranging a cutter blade behind the tip of the sliding plate, and the roll paper Rotating means After stopping, the outer end portion of the roll paper is moved by the cutter blade disposed behind the front end portion of the sliding plate by moving in the width direction of the roll paper while the front end portion of the sliding plate is inserted below the outermost layer of the roll paper. It is characterized by cutting.

  In the roll paper cutting and unwrapping apparatus as described above, the sliding plate has a raised portion behind the tip, and the cutter head has a cutting edge on the roll paper unwinding direction side by the cutter blade. Is provided with a brazing member that is sandwiched between the raised portion and the cutting edge rising on the outer layer surface of the roll paper.

  Further, the sliding plate has conductivity, and the sensor is a contact type having a contact for contact with the tip of the sliding plate, and the contact has reached the tip of the sliding plate. It is characterized by having elasticity such that it is deflected by roll paper and separated from the sliding plate.

  Furthermore, it is provided with a starting edge rolling means that presses and contacts the outer layer side edge of the roll paper and rolls up the starting edge side of the roll paper before the leading end of the sliding plate is inserted under the outermost layer of the roll paper. It is characterized by that.

  According to the present invention, since the cutter head has a configuration in which the sliding plate inserted into the roll paper and the blade mounting portion for arranging the cutter blade are integrated, the sliding plate is made as thin as possible so that the roll paper is Only the outermost layer of the roll paper on the sliding board can be cut in the width direction by the cutter blade disposed in the blade mounting portion while reliably inserting the tip of the sliding board into the roll paper without breaking. it can.

  In addition, the sliding plate has a raised portion behind the leading end, and the cutting edge of the roll paper by the cutter blade is sandwiched between the raised portion and the cutting edge of the roll paper. Since the brazing member that rises on the outer layer surface is provided, it becomes possible to easily and smoothly feed the roll paper after cutting.

  In addition, since the insertion of the sliding plate to the roll paper is detected by a contact type sensor, there is little possibility of erroneous detection, and the roll paper is used by the start-end winding means that is in pressure contact with the side edge of the roll paper. The effect is achieved that the sliding plate can be inserted more reliably by raising the starting end of the sliding plate.

  Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic side view showing a roll paper tailoring processing system including a roll paper cutting and releasing apparatus according to the present invention.

  In FIG. 1, reference numeral 1 denotes an elevator (roll paper rotating means) on which roll paper to be processed is placed. The elevator 1 is provided with a rolling roller 1A for rotatably supporting the roll paper R. The moving roller 1A is driven to rotate forward and backward by a motor (not shown).

  Further, on the lifting platform 1, a sheet disassembling device main body 2 is provided leaving an area where the roll paper R is disposed. It is cut in the width direction as shown in (B). Accordingly, an appropriate amount of paper can be fed from the roll paper R with the cutting edge C on the rewind direction side at the cutting position (cut L in FIG. 10) as the feeding end.

  In FIG. 1, reference numeral 3 denotes an inclined table that supports a roll paper feeding portion, and an air intake device 4 for adsorbing the roll paper feeding portion is provided below the table. Further, a cutting and tab sticking unit 5 is provided above the table 3, and this unit 5 cuts the roll paper feeding portion shown in FIGS. 10C to 10E, sticks the tab, and both sides. The tape is applied in order.

  FIG. 2 is a side view of the main body of the paper disassembling apparatus constituting the main part of the cutting paper disassembling apparatus, and FIG. In these drawings, 6 is a cutter head that can move in the width direction of the roll paper R placed on the above-mentioned lifting platform, and 7 is a head feed mechanism for moving the cutter head in the width direction of the roll paper R. The head feed mechanism 7 includes a guide rail 8 fixed on the lifting platform 1 so as to be parallel to the axis of the roll paper R, a slide 9 slidably fitted to the guide rail, and a spacer on the slide. A bracket 11 fixed via a block 10 is included, and a cutter head 6 is provided on the bracket 11 via a linear guide 12 and a slide 13 so as to be movable up and down.

  A frame 16 that supports an endless chain 15 is attached to the beam member 14 that supports the guide rail 8, and an upper end portion of the bracket 11 is connected to a part of the chain 15, and the chain 15 is driven by traveling. Although the cutter head 6 is configured to move in the width direction of the roll paper R, the present invention does not require this, and a feed screw or a hydraulic cylinder may be used instead of the chain drive system.

  In FIG. 2, reference numeral 17 denotes a detector for detecting the position of the cutter head, which is disposed at both ends of the beam member 14 and when the cutter head 6 moves from one end to the other end of the roll paper R. This is detected and the drive source of the chain 15 is stopped.

  On the other hand, in addition to the cutter head 6, a support unit 18 that supports the cutting and unwinding operation of the roll paper R by the cutter head 6 is linked to the guide rail 8. The support unit 18 includes a slide 19 that is slidably fitted to the guide rail 8 and two brackets 20 and 21 that are fixed to the slide. 23 and a pressurizing cylinder 24 (starting-end rolling means).

  Among these, the coupler 22 is formed of a fluid pressure cylinder, and the rod tip extends into the hole of the bracket 11 to which the cutter head 6 is attached by extension of the telescopic rod. In this state, the support unit 18 can be moved in the width direction of the roll paper R in conjunction with the cutter head 6, so that the sensor 23 and the pressure cylinder 24 can be aligned according to the width of the roll paper R. It is.

  The sensor 23 is a contact type (touch sensor), and a contact 23A made of a linear metal such as a piano wire having a predetermined elasticity and flexibility is provided at the tip thereof.

  The pressurizing cylinder 24 is a single-acting air cylinder in which the contraction operation of the telescopic rod is performed by the elasticity of the spring in this example, and a rolling member 24A having a high friction coefficient such as rubber is attached to the tip of the telescopic rod. It is done. The rolling member 24A is brought into pressure contact with the outer layer side edge of the roll paper R by the extension operation of the pressurizing cylinder 24 to roll up the leading edge of the roll paper, and the part of the cutter head 6 is brought into the roll paper R. It works to make sure it is inserted.

  Here, the structure of the cutter head will be described in detail. As shown in FIGS. 4 and 5, the cutter head 6 is integrally formed with a blade mounting portion 26 for mounting a commercially available cutter blade 25 and at a right angle to the lower end thereof. And a bowl-shaped sliding board 27 formed. The blade mounting portion 26 rising on the sliding plate 27 is formed with an inclined surface portion 26A, and the cutter blade 25 is arranged on the inclined surface portion 26A with its cutting edge inclined upward. In addition, a long hole 26C for sliding the cutter blade 25 in the length direction is formed in the side wall 26B adjacent to the inclined surface portion 26A, and the shaft of the fixing screw 29 is inserted into the long hole 26C via the blade presser 28. The portion 29A is inserted.

  In this example, the cutter blade 25 is bent at regular intervals, and a hole (not shown) through which the shaft portion 29A of the fixing screw is passed is formed at one end thereof. Then, each time the tip of the cutter blade 25 is sharpened, a sharp cutting edge can be positioned on the tip side of the sliding plate 27 by removing the portion and shifting the fixing position below the slope portion 26A.

  Further, at the upper end portion of the blade mounting portion 26, the slide 13 fitted to the linear guide 12 is fixed on the back surface side, and the shaft 30 extending on the rear end portion of the sliding plate 27 is fixed on the front surface side. A brazing member 32 is attached to the shaft 30 via a clamp 31. In this example, the brazing member 32 is obtained by bending a steel bar into an L shape, and a lower end portion thereof is extended to a position adjacent to a side rear end portion (particularly, a raised portion described later) of the sliding plate 27.

  On the other hand, the leading end 27A of the sliding plate 27 protrudes from the front end face of the blade mounting portion 26, and the contact 23A of the sensor is in contact with the leading end 27A. In particular, the leading end portion 27A of the sliding plate is set to a thickness of 0.1 to 1 mm so that it can be inserted under the outermost layer R1 from the position of the starting end S at the side edge of the roll paper, and the rear side (in this example) A thick raised portion 27B is formed at the rear end portion of the sliding plate 27).

  In addition, a slit 27C into which one end of the lower side of the cutter blade 25 is inserted is formed at the front end side of the center portion of the sliding plate 27, and one end of the cutter blade 25 is disposed on the upper surface of the sliding plate 27 behind the front end portion. A flat plate 33 for pressing the part is screwed.

  And the cutter head 6 comprised as mentioned above waits in the position where the front-end | tip part 27A of the sliding board 27 contacts the outer layer side edge part of the roll paper R like FIG. In this state, the roll paper R is rotated in the rewinding direction (arrow direction in FIG. 6) opposite to the winding direction by the rolling roller 1A (see FIG. 1) of the lifting platform. The portion 27A is brought into sliding contact with the outer layer side edge portion of the roll paper R with a predetermined pressure by the weight of the cutter head 6 which can be raised and lowered. Further, a rolling member 24A (see FIG. 2) is brought into pressure contact with the outer layer side edge of the roll paper R on the upstream side of the sliding plate 27.

  Thus, when the leading edge S of the roll paper R reaches the position of the sliding plate 27, the leading edge portion 27A of the sliding plate starts from the starting edge S position of the roll paper (an unfixed starting edge side edge to which no adhesive tape is applied). It is inserted below the outermost layer R1, but immediately before that, the rolling member 24A rolls up the edge of the roll sheet S side as shown in FIG. 7 and supports the insertion of the sliding plate 27 with certainty. .

  Further, at this time, the contact 23A (see FIG. 5) of the sensor that has been in contact with the leading end portion 27A of the sliding board is bent by the roll paper R, and the outer layer side edge of the roll paper R between the sliding board 27 and the sliding board 27. Allows to interrupt. For this reason, the contactor 23A is separated from the leading end portion 27A of the sliding plate and comes into contact with the electrically insulating roll paper R.

  Here, the sliding plate 27 is formed of a conductive metal or the like, and a weak current flows from the contact 23A with the sliding plate 27 as the ground side. Therefore, when the roll paper R reaches the leading end portion 27A of the sliding board, the energization of the sliding board 27 from the contact 23A is cut off, and thus the leading end section 27A of the sliding board is inserted into the roll paper R. Detected. When the detection (no signal from the sensor) is performed, the rolling roller 1A of the lifting platform is stopped, and the rotation of the roll paper R supported thereby is also stopped.

  Thereafter, the cutter head 6 is moved in the width direction of the roll paper R by the travel drive of the chain 15 with the leading end portion 27A of the sliding plate inserted under the outermost layer R1 of the roll paper. Although the sensor 23 exists on the moving path of the cutter head 6, the sensor 23 can be retracted to a position that does not hinder the movement of the cutter head 6 as indicated by an imaginary line in FIG. Before the movement, it is moved to the retracted position by a fluid pressure cylinder (not shown).

  Further, when the cutter head 6 is moved, the sliding plate 27 precedes and floats the outermost layer R1 of the roll paper, and the subsequent cutter blade 25 cuts this portion. Therefore, the roll paper R is divided into a plurality of layers. Therefore, it is possible to reduce the generation of unusable soiled parts.

  Further, in the outer layer portion of the roll paper cut by the cutter blade 25 as shown in FIG. 8, the cutting edge C on the rewind direction side of the roll paper R is greatly pushed up by the raised portion 27B of the sliding plate, and this is the raised portion. 27B and the brazing member 32 are sandwiched. Then, when the cutter head 6 moves in the width direction while cutting the roll paper R in this state, the cutting edge C is bent in series in the width direction, and this is the roll paper R as shown in FIG. Is launched on the surface of the outer layer. According to this, the cutting edge C can be picked by a gripping device (not shown), and can be smoothly fed onto the table 3 shown in FIG. 1 without any delay.

  Although the present invention has been described above, the present invention is not limited to the above example. For example, as a roll paper rotating means, instead of a lifting platform having a rolling roller, the central portion of the roll paper is chucked to be rotatable. You may make it do.

Schematic side view showing a roll paper cutting and unwinding device according to the present invention. Side view showing the main parts of the device Front view showing the main part of the device partially broken Side view of cutter head Perspective view of cutter head Explanatory drawing which shows the state before insertion of the sliding board with respect to roll paper Explanatory drawing which shows the state just before insertion of the sliding board with respect to roll paper Explanatory drawing which shows the state at the time of cutting of roll paper with a cutter blade Perspective view showing roll paper after cutting Explanatory drawing showing tailoring process for roll paper (paper splicing pre-process) in order of process

Explanation of symbols

R Roll paper S Start edge 1 Lift platform (roll paper rotating means)
2 Main body 6 Paper cutter device 23 Cutter head 23 Sensor 23A Contactor 24 Pressure cylinder
24A Winding member 25 Cutter blade 26 Blade mounting portion 27 Sliding plate 27A Tip portion of sliding plate 27B Raised portion 32 Brazing member

Claims (4)

  A roll paper rotating means for rotating the roll paper in a roll paper cutting and unwrapping apparatus for cutting the outer layer part of the roll paper, which has a start end at least excluding its side edge part, fixed to the outer layer surface in the width direction; The leading end is slidably contacted with the outer layer side edge of the roll paper rotated in the rewinding direction opposite to the winding direction by the roll paper rotating means, and the leading end is the outermost layer from the starting end position of the roll paper. A cutter head having a bowl-shaped sliding plate inserted below and provided so as to be movable in the width direction of the roll paper, and the roll paper rotating by detecting the roll paper approaching the tip of the sliding plate The cutter head has a blade mounting portion for arranging a cutter blade behind the tip portion of the sliding plate, and the tip portion of the sliding plate after the roll paper rotating means is stopped. Roll The roll paper is moved in the width direction of the roll paper while being inserted under the outermost layer, and the outer layer portion of the roll paper is cut with a cutter blade disposed behind the tip of the sliding plate. Cutting paper release device.   The sliding plate has a bulge portion behind the tip, and the cutting edge of the cutter head on the roll paper rewind direction side is sandwiched between the bulging portion and the cutting edge is rolled. 2. The roll paper cutting and releasing apparatus according to claim 1, further comprising a brazing member that rises on a surface of the outer layer of the paper.   Roll paper in which the sliding plate is conductive and the sensor has a contact for contact with the tip of the sliding plate, and the contact has reached the tip of the sliding plate. 2. The roll paper cutting and unpacking apparatus according to claim 1, wherein the roll paper cutting and unwinding apparatus has elasticity such that the roll paper is bent and separated from the sliding plate. It is provided with a starting edge winding means for pressing up the leading edge of the roll paper before being brought into pressure contact with the outer edge of the roll paper and the leading edge of the sliding board being inserted under the outermost layer of the roll paper. The roll paper cutting and releasing apparatus according to claim 1, wherein:

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