JP2008100297A - Method for cutting off sheaf of paper sheet, and apparatus for cutting off paper sheet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for cutting off a sheaf of paper sheets, which method can manufacture the apparatus for cutting off a sheaf of the paper sheets put on a paper rest along a cutting-off line so as to be compact at a low cost, and further to provide an apparatus for cutting off the paper sheets. <P>SOLUTION: The apparatus for linearly cutting off a sheaf of the paper sheets P along a required cutting-off line X comprises the paper rest 15 for supporting a sheaf of the paper sheets, a pressing means 20 for pressing and holding a sheaf of the paper sheets at the cutting-off position on the paper rest 15, a blade carrying member 26, such as a belt, a chain, moving along the cutting-off line X of the paper sheets held on the paper rest 15, a plurality of cutting-off blades 25 arranged and fixed to the blade carrying member 26 at an interval shorter than the cutting-off length L0 of the paper sheets P, a driving means for moving the blade carrying member 26 along the cutting-off line X, a guiding means 35 for guiding the plurality of the cutting-off blades 25 so as to linearly move along the cutting-off line X, and a blade feeding mechanism for moving a plurality of the cutting-off blades 25 or the paper rest 15 in the direction of the depth of cut. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a cutting method and a cutting apparatus for cutting a paper sheet bundle held on a paper table, for example, an improvement of a cutting mechanism when trimming and cutting a paper sheet bundle bound in a booklet form by a bookbinding apparatus or the like. About.

In general, this type of cutting apparatus firmly holds a sheet bundle disclosed in, for example, Patent Document 1 and a sheet bundle, for example, on a rotary table, for cutting sheets conveyed from an image forming apparatus one by one. 2. Description of the Related Art A paper sheet bundle cutting device that cuts a plurality of paper sheets simultaneously with a cutting blade is known. In particular, the latter paper sheet bundle cutting device is a so-called guillotine cutting device in which a paper sheet bundle is placed on a paper platform and the paper sheet bundle is cut with a flat blade-like cutting blade as disclosed in Patent Document 2, for example. An apparatus and an apparatus that cuts a bundle of paper sheets on a paper table along a cutting direction with a rotary blade are known. In any apparatus, a large number of paper sheet bundles are pressed and firmly supported by a press means on a paper platform, and the paper sheet bundles are cut with a rotary blade or a flat blade that reciprocates up and down. For this reason, the thing of patent document 2 is pressingly supporting the paper sheet bundle with the hydraulic mechanism.
Japanese Patent Laid-Open No. 10-138194 JP 2003-71780 A

  As described above, when a plurality of sheets are stacked in a bundle and cut, the sheet is conventionally cut by moving along a cutting line while simultaneously cutting a plurality of sheets with a rotary blade. ing. Similarly, a plurality of paper sheets are simultaneously cut with a guillotine blade along the cutting line. For this reason, there are the following problems. First, a large amount of shearing force is required to simultaneously cut a plurality of sheets of bundled paper sheets with rotating teeth or guillotine blades (axe-shaped flat blades). In simple comparison, when 50 sheets of paper are cut simultaneously, a shearing force of 50 times or more is required for cutting the sheet of paper into slices. Accordingly, the cutting blade for simultaneously cutting a plurality of paper sheets must be formed so as to be strong and not fallen off, and is expensive and increases the running cost such as wear of the blade edge. At the same time, the device frame for holding the cutting blade and the drive motor for driving the device blade must be large and robust. Similarly, paper sheets to be cut receive a large shearing force and must be firmly held on a turntable or the like. For example, the apparatus disclosed in Patent Document 2 holds a sheet bundle in a cutting position using a large apparatus such as pressing and holding the sheet bundle with a hydraulic cylinder.

  As described above, the conventional apparatus has a more robust cutting blade than a case where, for example, a sheet of paper is cut with a cutter along a ruler. The pressing device for pressing and holding also has a drawback of being robust and large. Therefore, there is a problem that the apparatus is large and expensive, and its running cost is high.

  Therefore, the present inventor can reduce the shear force required for cutting by gradually cutting the lower layer paper from the uppermost sheet along the cutting line, and the pressing force for holding the sheet bundle is also reduced. It came to the idea that it can be made smaller.

The present invention mainly provides a sheet bundle cutting method and apparatus capable of manufacturing a cutting apparatus that cuts a sheet bundle placed on a paper table along a cutting line in a compact and inexpensive manner. It is an issue. Another object of the present invention is to provide a simple configuration of a cutting blade required for cutting a sheet bundle, a driving mechanism thereof, and a press mechanism for pressing and holding the sheet bundle.
Furthermore, the present invention is capable of cutting a large-capacity sheet bundle with a small apparatus configuration by changing the cutting speed (blade feed speed) according to the material and thickness of the sheet bundle to be cut. Providing a device is an issue.

  To achieve the above object, the present invention employs the following configuration. An apparatus for linearly cutting a bundle of paper sheets P along a predetermined cutting line X, a paper table 15 for supporting the paper sheet bundle, and a paper sheet bundle at a cutting position of the paper table 15 Is shorter than the cutting length L0 of the paper sheet P, the pressing means 20 for pressing and holding, the blade carrier 26 such as a belt and chain moving along the cutting line X of the paper sheet on the paper table 15 A plurality of cutting blades 25 fixedly disposed on the blade carrier 26 at intervals, driving means for moving the blade carrier 26 along the cutting line X, and the plurality of cutting blades 25 along the cutting line X Guide means 35 for guiding the blades to move linearly, and a blade feed mechanism for moving the plurality of cutting blades 25 or the paper table 15 in the cutting direction. The guide means 35 includes a guide member engaged with the blade carrier 26 and / or a cutting blade 25 fixed to the blade carrier 26 so as to guide the cutting blade 25 in the cutting line X direction. The blade feeding mechanism is configured by (1) shift means for moving the blade carrier 26 up and down in the vertical direction with respect to the paper table 15, or (2) the blade carrier. Or (3) shift means for deforming the blade carrier 26 with respect to the paper mount 15, or (4) the paper mount. The table 15 is constituted by shift means that moves up and down in the vertical direction with respect to the blade carrier 26.

  The blade carrier 26 is constituted by a belt, a chain, or other flexible running member that runs along the cutting line X of the paper sheet P supported by the paper platform 15, and the drive means is configured as described above. The blade feeding mechanism includes a pair of rotating wheels 27 such as pulleys and sprockets that support the flexible traveling member, and a drive motor coupled to the rotating wheels 27. The blade feed mechanism includes (1) the pair of rotating wheels 27. Shift means that moves up and down in the vertical direction with respect to the paper table 15, or (2) Shift means that moves up and down one of the pair of rotating wheels 27 in the vertical direction with respect to the paper table 15, or (3) The flexible travel member is constituted by a shift means for displacing the flexible travel member in a direction perpendicular to the paper mount 15.

  The flexible running member is constituted by a chain member or a belt member rotatably supported by a pair of rotating wheels 27, and the flexible running member is in a plane substantially parallel to the paper mount 15. Arranged so as to draw a loop shape, the blade feed mechanism is constituted by a shift means that moves the pair of rotating wheels 27 up and down in the vertical direction with respect to the paper table 15.

  The flexible running member is constituted by a chain member or a belt member rotatably supported by a pair of rotating wheels 27, and the flexible running member is looped in a plane perpendicular to the paper mount 15. The blade feed mechanism is arranged so as to draw a shape, and (1) the pair of rotating wheels 27 is vertically shifted with respect to the paper table 15 or (2) the pair of rotations. Shift means for vertically moving one of the wheels 27 in the vertical direction with respect to the paper table 15 or (3) Shift means for displacing the flexible travel member in the vertical direction with respect to the paper table 15. Constitute.

  The belt-like traveling body is constituted by a chain, and the plurality of cutting blades 25 are fixed to connecting pins that connect the link segments of the chain.

  The plurality of cutting blades 25 are constituted by disk blades, and the disk blades are rotatably supported by the blade carrier 26 and roll along the cutting line X of the paper sheet P while rolling the paper sheet. The class P moves from one end to the other.

  The blade carrier 26 is constituted by a roller chain, and the guide means 35 includes a chain sliding contact surface 35b that contacts the link segment of the roller chain, and a blade sliding contact surface 35c that contacts the cutting blade 25, and the blade The cutting blade 25 fixed to the carrier 26 is supported so as to linearly move along the cutting line X.

  The cutting blade 25 is constituted by a flat plate-shaped flat blade, and the flat blade is fixed to the blade carrier 26 and has a cutting edge which is inclined or curved in the traveling direction.

  The blade carrier 26 is constituted by a roller chain, and the guide means 35 includes a chain sliding contact surface 35b that contacts the link segment of the roller chain, and a blade sliding contact surface 35c that contacts the cutting blade 25, and the blade The cutting blade 25 fixed to the carrier 26 is supported so as to linearly move along the cutting line X.

  The paper table 15 is provided with a blade receiving member with which the cutting blade 25 abuts against the cutting line X, and the blade receiving member is formed of a soft plate member or a roller member.

  The cutting line X of the paper table 15 is provided with a fixed blade that cuts a paper sheet between the cutting blade 25 and the cutting blade X of the paper sheet P along the cutting line X. It is arranged to be longer than the maximum cutting length L0 and mesh with the plurality of cutting blades 25 to cut a paper sheet.

  In the fixed blade, the cutting blade 25 fixed to the blade carrier 26 guides the cutting blade 25 in the cutting line X direction on the front side of the cutting start position where it contacts the paper sheet P on the paper platform 15. A guide surface is integrally provided.

  An apparatus frame, a paper table 15 for holding a bundle of paper sheets P at a predetermined cutting position, a movable frame 12 supported by the apparatus frame and movable up and down with respect to the paper sheet, and the paper sheet A pair of rotating wheels 27 rotatably supported by the movable frame 12 at positions spaced along the cutting line X of the paper sheet P on the table 15, and supported by the pair of rotating wheels 27. A flexible traveling member such as a chain and a belt; a plurality of cutting blades 25 carried by the flexible traveling member; and a blade feed driving means for moving the movable frame 12 up and down with respect to the paper table 15. The blade travel drive means ML for driving and rotating the rotary wheel 27, the press means 20 for pressing and holding the sheet bundle on the paper table 15, and the press drive means for operating the press means 20 are provided. The plurality of cutting blades 25 are held by the flexible travel member at an interval shorter than the cutting length L0 of the paper sheet P, and the press drive means, the blade feed drive means, and / or the blade travel drive means. ML is composed of a common drive motor.

  The pressing means 20 includes a pressing member that presses the paper sheet P on the paper mount 15, a pressure spring that presses the press member toward the paper sheet P, and a pressing force applied to the pressure spring. It is comprised with the press drive means to provide. The press drive means is connected to a drive motor common to the shift means or the blade feed drive means.

  The blade travel drive means ML that moves the blade carrier 26 along the cutting line X and the blade feed drive means MS that drives the shift means of the blade feed mechanism can change the travel speed and the blade feed speed, respectively. The blade travel drive means ML and the blade feed drive means MS are configured such that the drive speed can be changed according to the material and thickness of the sheet bundle and / or the wear state of the cutting blade 25.

  A flexible blade carrier 26 that moves along a predetermined cutting line X set in advance, and a plurality of cutting blades 25 fixed to the blade carrier 26 at predetermined intervals, and the plurality of cutting blades 25. In this method, the sheet bundle supported by the paper table 15 is cut and held on the paper table 15 by the pressing means 20, and then the plurality of cutting blades 25 are moved along the cutting line X. The cutting blade 25 is gradually advanced in the thickness direction while cutting from the uppermost sheet of the sheet bundle, and the sheet bundle is cut.

  The blade carrier 26 is composed of a flexible chain, and the plurality of cutting blades 25 are circular blades, and roll along the cutting line X of the paper sheet P from one end of the paper sheet bundle. Move to the other end.

The present invention provides a blade carrier that moves along a cutting line when the sheets are stacked and held on a paper platform and cut along a preset cutting line, and is shorter than the cutting length. A plurality of cutting blades are fixed at intervals, and guide means for guiding the cutting blades to move linearly along the cutting line and a blade feed mechanism for moving the cutting blades in the cutting direction are provided. Has a remarkable effect.
(1) The cutting blade only needs to have a cutting edge capable of withstanding a shearing force that cuts one or several sheets of paper, and the configuration is easier than a conventional cutting edge configuration that simultaneously cuts a sheet bundle. However, cutting performance and durability do not become a problem. Therefore, the cutting blade, the frame structure for supporting the cutting blade, and the driving device such as a motor can be a small and small capacity device.
(2) Since a large shearing force does not act on the paper sheets as in the case of the cutting blade, the press mechanism for pressing the paper sheets has a simple configuration, and the driving device can be a small and small capacity motor. It is possible, and combined with the configuration of the cutting blade, the entire apparatus can be configured to be small and compact.
(3) Further, since the cutting blades are arranged in a large number at intervals shorter than the cutting length of the paper sheets, it is possible to cut the sheet bundle at a relatively high speed. By doing so, the cutting process can be performed at a higher speed.
(4) Further, since the cutting blades sequentially cut the sheet bundle by a plurality of cutting blades, there is little wear, and replacement of the worn blades is easy and inexpensive. Is possible.
(5) The present invention is further configured such that the traveling speed and blade feeding speed of the blade carrier can be changed, and the traveling speed of the cutting blade according to the material / thickness of the sheet bundle or the state of wear of the cutting blade. By changing the blade feed amount, there is an effect that it is possible to always perform stable and reliable cutting and cutting with high finished quality (cut surface quality).

  The present invention will be described in detail below based on the preferred embodiments shown in the drawings. FIG. 1 is a perspective view showing the overall configuration of a paper sheet cutting apparatus according to the present invention, and FIGS. 2 and 3 are partial explanatory views of the main part thereof. 4A to 4E are explanatory diagrams of the operation state.

  A paper sheet cutting apparatus A shown in FIG. 1 includes an apparatus frame 10, a paper table 15 for holding a bundle of paper sheets (hereinafter referred to as “paper sheet bundle P”) such as paper sheets and plastic films, and the like. The pressing unit 20 presses and holds the sheet bundle P on the paper table 15 and a cutting blade 25 that moves along a preset cutting line X. A plurality of cutting blades 25 are arranged at a predetermined interval L along the cutting line X, and are configured to cut the sheet bundle P on the paper table by running (moving) along the cutting line X. Yes. Each configuration will be described below.

[Configuration of device frame]
The apparatus frame 10 is composed of an appropriate frame that supports the paper table 15, the cutting blade 25, and the pressing means 20. For example, when the apparatus frame 10 is incorporated in a bookbinding apparatus or the like, the apparatus frame 10 is arranged in a sheet bundle conveying mechanism, and has an appropriate structure according to the apparatus specifications. The illustrated one includes a fixed frame 11 and a movable frame 12 supported by the fixed frame 11. A paper mount 15 is integrally fixed to the fixed frame 11, and the movable frame 12 is supported so as to be movable up and down with respect to the paper mount 15. Referring to the structure shown in FIG. 1, the fixed frame 11 connects the lower frame 11 a constituting the paper mount 15, the upper frame 11 b approximately parallel to the upper frame 11 at a distance from the upper frame 11 a, and the upper and lower frames 11 a and 11 b. It consists of a frame with left and right side frames 11c, 11d. The movable frame 12 is fitted and held in guide grooves 11e and 11f formed in the side frames 11c and 11d of the fixed frame 11, and is supported so as to be movable up and down with respect to the paper mount 15. The vertical mechanism (shift means described later) will be described later.

[Configuration of the paper platform]
The paper platform 15 is composed of a table member for placing the sheet bundle P in a bundle shape, and is fixed to the apparatus frame 10. The paper table 15 is configured in a horizontal posture, a vertical posture, or a posture inclined at a predetermined angle depending on the apparatus specifications. That is, it is arranged in various postures according to the configuration of the transport path (not shown) for transporting the paper sheets to the paper table 15. For example, in the vertical posture, the paper sheet stack P is pressed against the paper table 15. The sheet bundle P is configured to be held in cooperation with the holding nip means. The illustrated one is arranged on a conveyance path (not shown) for conveying the sheet bundle P in a horizontal posture. In addition, the paper table 15 includes a rotary table (not shown) in an apparatus configuration (such as a bookbinding apparatus) for cutting and trimming the top portion, the ground portion, and the fore edge portion by rotating the sheet bundle P, for example. ) Is provided.

[Configuration of pressing means]
The above-described paper platform 15 is provided with press means 20 for pressing and holding the paper sheets at the cutting position. This is for holding the sheet bundle P so as not to be misaligned by the shearing force when the sheet bundle P is cut by a cutting blade 25 to be described later, and various mechanisms are conventionally known. As an example, the pressing means 20 shown in FIG. 8A is configured to press and hold the sheet bundle P on the paper table by the pressing member 22 via the pressure spring 21 to the movable frame 12 described above. ing. That is, two left and right support stems 21a and 21b are fitted and supported on brackets 12c and 12d formed integrally with the movable frame 12, and a plate-like press member 22 is connected and fixed to the support stems 21a and 21b. A pressure spring 21 (shown is a compression spring) is fitted between the brackets 12c, 12d and the press member 22.

  Therefore, when the movable frame 12 is lowered by the shift means described later, the press member 22 presses the paper sheet bundle P on the paper table. The press means 20 is configured to press the sheet bundle P with a relatively weak force with a relatively simple mechanism, and a blade feed driving means (shift motor) MS of a shift means, which will be described later, is also small and has a small capacity. It consists of an electromagnetic motor. As will be described later, since the present invention gradually cuts the sheet bundle P on the paper table 15 from the uppermost sheet to the lower layer sheet, the shearing force of the cutting blade 25 described later is relatively small, and the sheet bundle P is pressed and held. This is because there is no fear that the sheet will be misaligned even if the pressing force is reduced.

  In addition, the pressing means 20 may be configured as follows. 8 (b) shows a press means 20 having a jack structure, and first swing levers 23a and 23b are rotatably supported on the fixed frame 11, and the first swing levers 23a and 23b are respectively supported by the shaft. The second swing levers 23c and 23d are axially supported, and the press member 22 is rotatably supported by the second swing levers 23c and 23d. The first and second swing levers 23 a to 23 d are connected by a ball screw 24 so as to approach and separate. Accordingly, when the ball screw 24 is rotated by the press motor MP, the first and second swing levers 23a to 23d are raised or fallen, and the press member 22 pressurizes the press member 22 in accordance with the thickness of the sheet bundle P. Even with such a configuration, the sheet bundle P on the paper platform 15 can be pressed and supported by the press member 22.

[Composition of cutting blade]
The cutting blade 25 has the following configuration in order to cut the sheet bundle P supported by the paper table 15 and pressed and held by the pressing means 20 along the cutting line X. A plurality of cutting blades 25 are attached to the blade carrier 26, and a plurality of cutting blades 25 are arranged at intervals L shorter than the cutting length (L0 shown in FIG. 2) of the sheet bundle P, and are configured to travel along the cutting line X. For this reason, the cutting blade 25 is composed of a disk-shaped disk blade 25A or a flat blade 25B, and is fixed to the blade carrier 26 described below. 2 and 3 show a case where the cutting blade 25 is constituted by a disc blade 25A having a diameter D, and FIGS. 5 to 7 show a case where the cutting blade 25 is constituted by a flat blade 25B. 6A to 6C show a sword-shaped (rectangular) flat blade 25B, and FIG. 6D shows a semi-circular or fan-shaped flat blade. In both cases, the blade edge shape is formed on a single blade or a double blade, and when the blade receiving side is configured with a cutting plate-shaped blade receiving surface, as will be described later, when the blade receiving side is configured with a fixed blade that cuts and sandwiches the blade receiving side. Is configured in a single-edged shape.

[Configuration of blade carrier]
The cutting blades 25A and 25B having the above shapes are fixed to a blade carrier 26 that draws an infinite loop. The blade carrier 26 holds the cutting blade 25 so as to travel along the cutting line X. For this reason, the blade carrier 26 is composed of a flexible traveling member such as a chain or a belt, and the illustrated one adopts a transmission chain structure. FIG. 2B shows an example in which a transmission chain is used for the blade carrier 26. A link segment 26a made of resin or metal is connected in a chain with a connecting pin 26b, and a shaft is connected to the connecting pin 26b. The roller 26c is fitted so as to rotate freely. A plurality of disc blades 25 </ b> A or flat blades 25 </ b> B are attached to such a blade carrier 26 at a predetermined interval L.

  A disc blade 25A is axially supported on the connecting pin 26b between the left link segment 26aL and the right link segment 26aR connected in a chain form as shown in FIG. 2B, and the disc blade 26A has the connecting pin 26b. Installed to roll to the center. The diameter D of the disc blade 25A is formed with a dimension that does not interfere with the adjacent link segment 26a. The chain structure formed in this manner is meshed with a pair of left and right sprockets 27R and 27L, and each of the sprockets 27R and 27L is axially supported by the movable frame 12. A drive motor ML, which is a blade travel drive means, is connected to the left sprocket 27L in FIG. Reference numeral 28 in the drawing denotes a tension lever that adjusts the tension of the chain structure. In other words, the tension lever 28 is urged clockwise in FIG. 2 by the spring 28a, and the cutting blade 25 always travels in a constant locus by the action of the spring 28a even if the chain structure is worn during use. Yes.

  When the blade carrier 26 is configured as a chain structure as described above, in the case of the circular blade 25A shown in FIG. 3, the disk blade 25A is fitted and supported on the connecting pin 26b, and rolls around the connecting pin 26b. So that it is supported. Further, when the flat blade 25B is bent into an L shape shown in FIG. 5, it is firmly fixed to the connecting pin 26b. Similarly, when the cutting blade shown in FIG. 6 is constituted by a rectangular flat blade 25B, an attachment member is interposed and fixed to the link segment 26a of the chain structure, and the cutting blade 25 is firmly fixed to the attachment member. In addition, although the roll chain was illustrated as the above-mentioned chain structure, it is needless to say that a resin molded chain such as a so-called silent chain may be used.

[Configuration of different blade carriers]
The blade carrier 26 is not limited to the chain structure described above, and may be a belt member such as a timing belt. In this case, the disk blade 25A or the rectangular flat blade 25B is fixed to the outer surface of the belt with a screw or the like. . Further, the blade carrier 26 can also be constituted by a flexible member such as a wire. In this case, the cutting blade is held so as to be able to run left and right on a holder member that constitutes guide means described later, and is connected to the cutting blade. The cutting blade is caused to travel with a flexible member such as a wire.

[Driving structure of blade carrier]
As described above, the blade carrier 26 including the plurality of cutting blades 25 is stretched around the pair of left and right rotating wheels 27 so as to move and travel along the cutting line X. That is, when the blade carrier 26 is a chain structure, it is bridged between the aforementioned sprockets 27R and 27L, and when the blade carrier 26 is a belt member, it is bridged between the pulleys 27R and 27L. A blade travel drive means ML such as a drive motor is connected to one of the rotating wheels 27L.

  Accordingly, the blade carrier 26 is stretched along the cutting line X of the sheet bundle P held on the paper platform 15, and the cutting blade 25 attached thereto moves in the left-right direction in FIG. In this case, the blade carrier 26 is arranged so as to draw a loop shape in a plane substantially parallel to the sheet bundle P on the paper platform 15 at a distance, or draws a loop shape in a vertical plane. Are arranged as follows. As shown in FIG. 5, the former places the sprockets 27R and 27L above the paper platform 15 in a horizontal posture, and the latter places the left and right sprockets 27R and 27L in a vertical posture as shown in FIGS. In this way, the rotating wheel 27 that stretches the blade carrier 26 is arranged to draw a loop in the horizontal plane even if the blade carrier 26 is arranged to draw a loop in the vertical plane with respect to the paper platform. Either way is fine. In the case where the loop is arranged in a horizontal plane, it is necessary to consider that the cutting blade 25 travels in an area that does not interfere with the sheet bundle P on the paper platform.

[Configuration of guide means]
The plurality of cutting blades 25 supported by the blade carrier 26 described above require guide means 35 so as to move linearly along the cutting line X. The illustrated means is provided with guide means 35 for guiding the cutting blade 25 in a ruler shape along the cutting line X, and this guide means 35 is disposed on the movable frame 12 or the fixed frame 11. The former will be described. As shown in FIG. 1, a guide member (guide means; the same applies hereinafter) 35 is fixed to the movable frame 12 along the cutting line X. The guide member 35 is provided with a guide groove 35a for fitting the cutting blade 25. The guide groove 35a is in contact with the shaft roller 26c of the chain structure to prevent the chain structure from meandering. A sliding contact surface 35b and a blade sliding contact surface 35c that slides in contact with the cutting blade 25A (or 25B) and guides the cutting blade 25A linearly along the cutting line X are provided.

  The guide member 35 is configured in different shapes from those shown in FIGS. 2A and 3A and those shown in FIGS. 5A to 7B. What is necessary is just to comprise so that 25 may carry out linear motion along the cutting line X correctly. Further, if the cutting blade 25 accurately moves linearly along the cutting line X when cutting the sheet bundle P, the frictional resistance decreases as the sliding contact area of the blade sliding contact surface 35c decreases. Therefore, the shape of the blade-sliding contact surface 35 c is preferably set experimentally according to the configuration of the cutting blade 25.

[Blade polishing mechanism]
In particular, the guide member 35 shown in FIG. 7 includes the above-described chain sliding contact surface 35b and the blade sliding contact surface 35c, and also includes a polishing means 37. The resin guide member 35 is provided with a polishing debris removal hole 37b and a polishing grindstone 37a at the opening, and the cutting edge of the disc blade 25A is polished with the polishing grindstone. The polishing grindstone 37a is partially disposed at an appropriate location on the guide member 35, and acts to polish the cutting edge surface rotating in contact with the sheet bundle P. When the cutting blade 25A is made of an iron-based metal, rust may frequently occur if the humidity environment or the apparatus use interval is long. In such a case, durability can be increased by trial cutting the paper sheet bundle (cutting for blade edge polishing) and polishing the blade edge.

  Accordingly, the polishing wheel 37a is attached to the polishing debris removal hole 37b so as to freely move in and out of the position where it comes into contact with the cutting edge. A mechanism is adopted in which the blade edge is polished by moving to, and then retracted by operating the operation screw. Thus, when rust adheres to the cut surface of the sheet bundle P, the cutting edge of the cutting blade 25A can be polished and used continuously without replacing the blade.

[Configuration of blade feed mechanism]
As described above, the plurality of cutting blades 25 fixed to the blade carrier 26 sequentially cut the lower layer paper from the upper layer paper in the sheet bundle P on the paper table in the process of continuously running along the cutting line X. . For this reason, a blade feed mechanism 40 is provided. This blade feed mechanism 40 is either (1) shift means 41 that moves the blade carrier 26 up and down in the vertical direction with respect to the paper platform 15 or (2) the blade carrier 26 in the vertical direction with respect to the paper platform 15. Or (3) shift means 43 for deforming the blade carrier 26 with respect to the paper platform 15, or (4) the paper platform 15 in a direction perpendicular to the blade carrier 26. Any one of the shift means 44 that moves up and down is used.

  In the configuration (1), the sprockets 27R and 27L of the blade carrier (chain structure) are supported (bearing supported) on the movable frame 12, and the movable frame 12 is moved up and down with respect to the paper platform 15. Configure as follows. That is, the movable frame 12 is fitted and supported in guide grooves 11e and 11f formed in the fixed frame 11, and is configured to be movable up and down. The movable frame 12 is fitted with an eccentric cam 14 on a rotary shaft 13 provided on the fixed frame 11 and fixed to a bracket 16 having the eccentric cam 14. The rotary shaft 13 is connected to a shift motor MS that constitutes a blade feed driving means, and 13a in the figure is a transmission timing belt. Therefore, the shift means 41 includes the movable frame 12, the eccentric cam 14 that moves the movable frame 12 up and down, and the shift motor MS. A blade carrier 26 and a cutting blade 25A are mounted on the movable frame 12.

  The configuration of (2) is conceptually shown in FIG. 9A. The movable frame 12 is axially supported by the fixed frame 11 so that one end of the movable frame 12 can swing and the other end is supported so as to swing up and down. Only one end of the movable frame 12 is moved up and down by the eccentric cam 14. Therefore, the shift means 42 includes the movable frame 12, the eccentric cam 14 that moves the movable frame 12 up and down, and the shift motor MS. A blade carrier 26 and a cutting blade 25A are mounted on the movable frame 12.

  The configuration of (3) is conceptually shown in FIG. 9 (b). The chain structure sprocket 27R constituting the blade carrier 26 is fixed to the fixed frame 11, and the other end of the sprocket 27L is horizontally oriented. The shaft is supported so that it can move freely. The movable sprocket 27L is urged to the left side of FIG. Therefore, a guide member 28 similar to the above-described guide member 35 is supported on the fixed frame 11 so as to be movable up and down, and the guide member 28 is moved up and down by the eccentric cam 14, for example. As a result, the cutting blade 25A in the solid line state in the figure cuts the sheet bundle P on the paper table 15 in the chain line state. Therefore, the shift means 43 is constituted by the guide member 28, the eccentric cam 14, and the shift motor MS for rotationally driving the eccentric cam 14, and the shift motor MS constitutes a blade feed driving means.

  In the configuration (4), as shown in the conceptual diagram of FIG. 9C, the paper platform 15 is supported on the fixed frame 11 constituting the apparatus frame 10 so as to be movable up and down. In the illustrated one, for example, the paper table 15 is supported in guide grooves 11e and 11f formed in the side frames 11c and 11d so as to be movable up and down. The blade carrier 26 and the cutting blade 25 fixed to the blade carrier 26 are fixed to the movable frame 12 or the fixed frame 11. Therefore, one end of the pulling wire 38 is fixed to the paper mount 15 and the other end of the wire is fixed to the take-up pulley 39. A shift motor MS is attached to the take-up pulley 39, and the paper table 15 is moved and shifted upward. Accordingly, the sheet bundle P on the paper table is gradually raised and sequentially cut from the uppermost sheet by the cutting blade 25 that runs in the cutting line X direction. In this way, the shift means 44 can be composed of the paper table 15, the pulling wire 38 that moves up and down, and the shift motor MS. In this case, the blade feed driving means is constituted by the shift motor MS.

[Configuration of blade support mechanism]
As described above, the blade receiving structure of the cutting blades 25A and 25B arranged at the predetermined interval L on the blade carrier 26 will be described. A fixed blade 48 is used. The former blade receiving member 45 is composed of a soft material such as rubber or resin, and is composed of a blade receiving roller 45a or a blade receiving plate member 45b. The blade receiving roller 45a shown in FIG. 11 (b) is incorporated in the paper table 15 so as to be freely rotatable (floating state) along the cutting line X, and the blade blade P is set when the paper sheet bundle P is set on the paper table 15. The receiving roller 45a is configured to roll. Accordingly, the blade receiving surface on the outer periphery of the roller changes its position in the outer peripheral direction every time cutting is performed, so that the outer periphery of the roller is almost uniformly worn and has a highly durable blade receiving structure. Further, the blade receiving plate member 45b shown in FIG. 11C is formed of a soft plate member. The blade receiving plate member 45b is configured to move in accordance with wear, so that a blade receiving structure with high durability is obtained.

  Next, the fixed blade 48 will be described with reference to FIG. The fixed blade 48 is disposed longer than the maximum cutting length of the sheet bundle P along the cutting line X, and is configured to cut the paper sheet with the cutting blade 25. Particularly, in the present invention, the fixed blade 48 is provided with a blade edge guide surface 49 for guiding the cutting blade 25 supported by the blade carrier 26. This is because the cutting blade 25 is guided so as to be surely engaged with the fixed blade 48 when the lowermost layer paper on the paper table is cut. Accordingly, the blade edge guide surface 49 is located at the front side of the fixed blade 48 (upstream side where the cutting blade travels) at a position where the cutting blade 25 is guided in the cutting line direction in contact with the cutting blade 25 at a position where it is guided in the cutting line direction. Has been placed.

[Cutting control action]
Next, a cutting operation for driving and controlling the cutting blades 25A and 25B having the above-described configurations will be described. This will be described with reference to the configuration shown in FIGS. 1 and 2. A sheet bundle P is placed on the paper platform 15 and set at a predetermined cutting position. This paper stack P is usually set on the upstream side of the paper tray 15 with a paper sheet transport means, such as a grip transport member or a nip roller, and the paper sheet bundle P is cut by the feed amount of the paper sheet transport means. Set discretion (cut width). Further, when cutting (trimming cut) the three directions of the top, the ground, and the fore edge of the sheet bundle P, a turntable is provided on the upstream side of the paper table 15.

  Therefore, when the sheet bundle P is set in the state shown in FIG. 4A, the control means (not shown) drives the shift motor MS, rotates the rotary shaft 13 and rotationally drives the eccentric cam 14. Then, the movable frame 12 is lowered to the state shown in FIG. 4B, and the press member 22 attached thereto presses and supports the sheet bundle P. At this time, the pressure spring 21 is compressed and presses the press member 22. In the case of the press mechanism shown in FIG. 8B, the press member 22 is pushed down by rotationally driving a press motor MP different from the shift motor MS.

  Next, the control means rotationally drives the drive motor (blade running drive means) ML to move and run the blade carrier 26 from one end to the other end side of the sheet bundle P along the cutting line X in the state shown in FIG. 4C. Then, the cutting blade 25A fixed to the blade carrier 26 cuts several sheets from the uppermost sheet of the sheet bundle P along the cutting line X. In accordance with the cutting of the sheet bundle P, the control means rotationally drives the shift motor MS and rotates the eccentric cam 14 by a predetermined angle. The rotation of the eccentric cam 14 causes the cutting blade 25A to gradually move downward in accordance with the cutting state of the sheet bundle P at a low speed. Then, the cutting blade 25A cuts the lower layer paper of the sheet bundle P in the state of FIG. 4D.

  Next, when cutting the lower layer paper (several sheets including the lowermost layer paper) of the sheet bundle P on the paper platform 15, the cutting blade 25A is guided by the blade edge guide surface 49 in the state of FIG. And cut with the lower layer paper. When all the sheets on the paper table are cut in this way, the control means rotates the shift motor MS (forward direction or reverse direction) to return the eccentric cam 14 to the initial position. Then, the cutting blade 25A and the press member 22 are returned to the state shown in FIG. 4A, and the cut sheet bundle P is released in a state where it is placed on the paper table 15.

  It is possible to sequentially cut the sheet bundle P by repeating the above-described operation, but the present invention is further characterized by the following consideration. The shift motor (blade feed drive means) MS and the blade travel drive motor (blade travel drive means) ML are configured such that the drive speed can be changed by a stepping motor, for example, and perform the following control.

[Adjusting the blade speed according to the material and bundle thickness]
The first control changes the speed according to the material and thickness of the sheet bundle P and / or the wear state of the cutting blade. For example, in the case where the control means is constituted by a control CPU, the thickness and material of the sheet bundle P or the wear state of the cutting blade is input by a control panel attached thereto. For the thickness of the paper sheet bundle P, for example, a thickness detection means is provided on the upstream side of the paper platform 15, and when the paper sheet bundle P is relatively thin, the blade travel speed and the blade feed speed are set fast. However, when it is thick, both speeds are set to a low speed.
Further, when the material of the sheet bundle is a plastic sheet or cardboard, both speeds are set to a low speed, and in other cases, the speed is set to a high speed. The cutting blade is worn out by integrating the cutting blade operating time or detecting the load (traveling time per unit distance) of the blade travel drive motor, and driving at low speed when the wear is severe. Further, the control panel is configured to select high-definition finishing or high-speed finishing. In the former case, both the speeds are driven at a low speed, and in the latter case, the high-speed driving is performed.

[Adjustment of blade travel speed]
Next, the second control adjusts the driving speed of the blade travel drive motor ML according to the cutting state of the sheet bundle P. First, when the uppermost layer of the sheet bundle P is cut, the cutting speed is set so that the cutting blade 25 cuts along the cutting line X along an accurate straight line. Next, the intermediate layer of the sheet bundle P is cut at a high speed. As a result, the cutting blade 25 guided along the cut surface of the upper layer paper travels at a high speed, thereby enabling cutting processing in a short time. Finally, when cutting the lower layer sheet of the sheet bundle P, the sheet is cut at a low speed. As a result, the cutting blade 25 meshes with the fixed blade 48 in a correct posture and cuts accurately. By adjusting the traveling speed of the cutting blade 25 in this way, it is possible to perform cutting with excellent quality in which cut surfaces are aligned at a relatively high speed.

[Intermittent drive of blade travel drive motor ML]
In the third control, the cutting blade 25 is intermittently disposed on the blade carrier 26 as shown in FIG. For example, as shown in FIG. 5A, a plurality of cutting blades 25 are arranged on the upper side 26X (or belt or the like) of the loop-shaped blade carrier 26, and the cutting blades 25 are not arranged on the lower side 26Y. That is, the cutting blade is divided into a portion where the plurality of cutting blades 25 are arranged at intervals shorter than the cutting length and a portion where the cutting blades are arranged at intervals longer than the cutting length. In such a configuration, the control means intermittently drives the blade travel drive motor ML. That is, the illustrated Hp is set to a standby position (home position), the blade carrier 26 is stopped at this position, and the blade feed shift motor MS is driven to advance the cutting blade in the cutting direction. By controlling in this way, a higher-definition cut surface can be obtained. In this case, the blade carrier 26 can be controlled to stop at the standby position and cut only when the lowermost layer paper is cut.

A timing chart of such a control means is shown in FIG. 10B. A home position sensor Hp is provided at the standby position, and the blade carrier 26 is stopped at the standby position by a signal from this sensor. Then, after a predetermined time, the blade travel drive motor ML is activated and stopped when the cutting blade 25A makes a round. Then, the blade feed drive motor MS is activated to rotate the eccentric cam 14 by a predetermined amount. Then, the blade carrier 26 and the cutting blade 25A are lowered by a predetermined amount. Therefore, the blade traveling drive motor MS is activated again to make a round of the cutting blade 25A. Thus, the shearing force acting on the sheet bundle P is further reduced by intermittently driving the blade travel drive motor ML and the blade feed drive motor MS. That is, since the blade does not enter the sheet bundle at the same time as the blade travels, the cutting blade 25A smoothly moves along the cutting line X and simultaneously enters the bundle thickness direction.
At this time, the outer diameters d1, d2, and d3 of the cutting blade 25A are gradually increased as shown in FIGS. 11 (a1), (a2), and (a3), or the cutting blade 25A1, as shown in FIG. By gradually shifting the mounting positions (n1, n2, n3) of 25A2, 25A3, for example, the first sheet with the first cutting blade 25A1, and the second sheet with the second cutting blade, The third cutting blade can cut the third sheet, and the sheet bundle can be cut at high speed and in a short time. In this case, it is preferable that the final paper is cut with a cutting blade having the maximum diameter between the fixed blade. In addition, α shown in the figure is appropriately set by the thickness of several sheets of paper.

  Next, the cutting method according to the present invention will be described. As is clear from the above-described configuration, a flexible blade carrier 26 that moves along a predetermined cutting line X set in advance, and the blade carrier 26 4 is a method of cutting a sheet bundle supported by the paper table 15 with a plurality of cutting blades 25A (25B) fixed at a predetermined interval L, and the configuration thereof from the description of FIG. Is obvious. Therefore, the sheet bundle is pressed and held by the pressing means 20 on the paper table (see FIG. 4A). Next, the plurality of cutting blades 25 are guided and guided by the guide means 35 along the cutting line X (see FIG. 4B). The cutting blade 25 is gradually advanced in the thickness direction while cutting from the uppermost sheet of the sheet bundle P to cut the sheet bundle (see FIGS. 4C to 4E).

The perspective view which shows the whole structure of the paper sheet cutting device concerning this invention. It is principal part explanatory drawing of the apparatus of FIG. 1, (a) is the arrangement state of a cutting blade, (b) is the connection structure of the chain which comprises a blade carrier, (c) is the state of a cutting blade (disk blade) Indicates. It is explanatory drawing of the cutting blade guide mechanism in the apparatus of FIG. 1, (a) shows sectional drawing of FIG. 2 (a) yy line, (b) is description of the blade edge | tip guide surface which guides a cutting blade to a fixed blade. FIG. It is explanatory drawing of the operation state which cuts a paper sheet bundle. It is explanatory drawing of the operation state which cuts a paper sheet bundle. It is explanatory drawing of the operation state which cuts a paper sheet bundle. It is explanatory drawing of the operation state which cuts a paper sheet bundle. It is explanatory drawing of the operation state which cuts a paper sheet bundle. The form of the blade carrier different from the apparatus of FIG. 2 and the cutting blade attached to this is shown, (a) is sectional explanatory drawing, (b) is whole explanatory drawing. 2 shows the form of the blade carrier different from the apparatus of FIG. 2 and the cutting blade attached thereto, (a) is an overall explanatory view thereof, (b) is a cross-sectional explanatory view, and (c) and (d) are the shapes of the cutting blades. It is explanatory drawing shown. FIGS. 2 and 6 show a blade carrier different from the cutting blade and a cutting blade attached to the blade carrier, wherein (a) is a partial configuration diagram and (b) is a cross-sectional explanatory diagram. It is explanatory drawing of the press means in the apparatus of FIG. 2, (a) and (b) shows different embodiment, respectively. (A) thru | or (c) The blade feed mechanism different from the shift means in the apparatus of FIG. 2 is shown. It is explanatory drawing of the arrangement structure of the cutting blade different from the apparatus of FIG. 2, (a) is explanatory drawing of the embodiment, (b) is a timing chart of a control means. It is explanatory drawing of the principal part in the apparatus of FIG. 2, (a1) thru | or (a3) show the form of the cutting blade different from FIG. Moreover, (b) and (c) show different embodiments of the blade receiving mechanism.

Explanation of symbols

10 apparatus frame 11 fixed frame 11a lower frame 11b upper frame 11c side frame 11d side frame 11e guide groove 11f guide groove 12 movable frame 13 rotating shaft 13a timing belt 14 eccentric cam 15 paper mount 16 bracket 20 pressing means 21 pressure spring 21a Support stem 21b Support stem 22 Press members 23a, 23b First swing lever 23c, 23d Second swing lever 25 Cutting blade 25A Disc blade 25B Flat blade 26 Blade carrier 26a Link segment 26b Connecting pin 26c Axle roller 27 Rotating wheel 27R, 27L (sprocket) (pulley)
28 Tension lever 35 Guide means (guide member)
35a Guide groove 35b Chain sliding contact surface 35c Blade sliding contact surface 37 Polishing means 40 Blade feeding mechanisms 41 to 44 Shifting means 45 Blade receiving member 48 Fixed blade 49 Cutting edge guide surface A Paper sheet cutting device ML Drive motor (blade running drive means) )
MP press motor MS shift motor (blade feed drive means)
P Paper bundle X Cutting line

Claims (19)

An apparatus for cutting a bundle of paper sheets linearly along a predetermined cutting line,
A paper platform for supporting a bundle of paper,
Press means for pressing and holding the sheet bundle at the cutting position of the paper table;
A blade carrier such as a belt or chain that moves along the cutting line of the paper sheet on the paper table;
A plurality of cutting blades fixedly arranged on the blade carrier at an interval shorter than the cutting length of the paper sheet,
Blade travel drive means for moving the blade carrier along the cutting line;
Guide means for guiding the plurality of cutting blades to linearly move along the cutting line;
A blade feed mechanism for moving the plurality of cutting blades or the paper table in the cutting direction;
With
The guide means includes a guide member that engages with the blade carrier so as to guide the cutting blade in the cutting line direction and / or a guide member that engages with a cutting blade fixed to the blade carrier. ,
The blade feed mechanism is
(1) shift means for moving the blade carrier vertically up and down with respect to the paper table;
Or (2) shift means for inclining the blade carrier in a direction perpendicular to the paper table,
Or (3) shift means for deforming the blade carrier relative to the paper table,
Or (4) shift means for vertically moving the paper platform vertically with respect to the blade carrier;
A sheet cutting apparatus characterized by comprising: The blade carrier is composed of a belt, a chain, and other flexible running members that run along the cutting line of the paper sheet supported by the paper platform.
The blade travel drive means is composed of a pair of rotating wheels such as a pulley and a sprocket that support the flexible traveling member, and a drive motor connected to the rotating wheel,
The blade feed mechanism may be (1) shift means for vertically moving the pair of rotating wheels in a vertical direction with respect to the paper table, or (2) one of the pair of rotating wheels with respect to the paper table. And (3) shift means for displacing the flexible travel member in a vertical direction with respect to the paper table. The paper sheet cutting apparatus as described. The flexible traveling member includes a chain member or a belt member that is rotatably supported by a pair of rotating wheels, and the flexible traveling member has a loop shape in a plane substantially parallel to the paper mount. Arranged to draw
3. The paper sheet cutting apparatus according to claim 2, wherein the blade feeding mechanism is configured by a shift unit that vertically moves the pair of rotating wheels in a direction perpendicular to the paper table. The flexible traveling member is constituted by a chain member or a belt member rotatably supported by a pair of rotating wheels,
The flexible running member is arranged to draw a loop shape in a plane perpendicular to the paper platform,
The blade feed mechanism may be (1) shift means for vertically moving the pair of rotating wheels in a vertical direction with respect to the paper platform, or (2) one of the pair of rotating wheels with respect to the paper platform. And (3) shift means for vertically displacing the flexible travel member with respect to the paper table. The paper sheet cutting apparatus as described. The paper sheet cutting apparatus according to claim 1 or 2, wherein the belt-like traveling body is constituted by a chain, and the plurality of cutting blades are fixed to a connecting pin for connecting a link segment of the chain. The plurality of cutting blades are constituted by disk blades,
The disk blade is rotatably supported by the blade carrier and moves from one end to the other end of the paper sheet while rolling along a cutting line of the paper sheet. 6. The paper sheet cutting apparatus according to any one of 5 above. 6. The cutting blade according to claim 1, wherein the cutting blade is a flat blade having a flat shape, and the flat blade is fixed to the blade carrier and has a cutting edge that is inclined or curved in the traveling direction. The paper sheet cutting apparatus according to 1. The blade carrier is composed of a roller chain,
The guide means is a chain sliding contact surface that is in sliding contact with the link segment of the roller chain;
The blade cutting contact surface which is in sliding contact with the cutting blade is provided, and the cutting blade fixed to the blade carrier is guided so as to linearly move along the cutting line. The paper sheet cutting apparatus according to the section. The paper platform is provided with a blade receiving member with which a cutting blade comes into contact with the cutting line,
The paper sheet cutting apparatus according to any one of claims 1 to 8, wherein the blade receiving member is formed of a soft plate-like member or a roller member. The cutting line of the paper table is provided with a fixed blade that cuts a paper sheet with the cutting blade,
The fixed blade is disposed longer than a maximum cutting length of the paper sheet along the cutting line, and cuts the paper sheet by meshing with the plurality of cutting blades. The paper sheet cutting apparatus according to the section. The fixed blade includes a cutting edge guide surface that guides the cutting blade in the cutting line direction on the front side of the cutting start position where the cutting blade fixed to the blade carrier contacts the paper sheet on the paper platform. The paper sheet cutting device according to claim 10, wherein the paper sheet cutting device is provided. A device frame;
A paper platform for holding a bundle of paper sheets in a predetermined cutting position;
A movable frame supported by the device frame and movable up and down with respect to the paper;
A pair of rotating wheels rotatably supported by the movable frame at positions spaced along a cutting line of the paper sheets on the paper table;
A flexible travel member such as a chain or belt supported by the pair of rotating wheels;
A plurality of cutting blades carried by the flexible running member;
Blade feed driving means for moving the movable frame up and down relative to the paper table;
Blade traveling drive means for driving and rotating the rotating wheel;
Press means for pressing and holding the sheet bundle on the paper table;
Press drive means for operating the press means,
The plurality of cutting blades are arranged on the flexible traveling member at an interval shorter than the cutting length of the paper sheet,
The paper sheet cutting apparatus according to claim 1, wherein the press driving means and the blade feed driving means and / or the blade travel driving means are constituted by a common drive motor. The pressing means includes
A press member for pressing the paper sheets on the paper table;
A pressure spring that presses the pressing member against the paper sheet,
Press driving means for applying a pressing force to the pressure spring;
Consists of
The paper sheet cutting apparatus according to any one of claims 1 to 12, wherein the press driving means is connected to a driving motor common to the shift means or the blade feed driving means. Blade travel drive means for moving the blade carrier along a cutting line;
The blade feed driving means for driving the shift means of the blade feed mechanism is
Each running speed and blade feed speed can be changed,
14. The blade driving driving means and the blade feeding driving means can change the driving speed according to the material and thickness of the sheet bundle and / or the wear state of the cutting blade. The paper sheet cutting apparatus according to 1. Control means for controlling blade travel drive means for moving the blade carrier along a cutting line and blade feed drive means for driving shift means of the blade feed mechanism,
(1) At the time of disclosure of cutting to cut the upper layer paper of the sheet bundle, the blade traveling speed is controlled to be low,
(2) When cutting the intermediate layer of the paper sheet bundle, the blade traveling speed is controlled at a high speed,
(3) The sheet cutting apparatus according to any one of claims 1 to 14, wherein the blade traveling speed is controlled to be low when the lowermost layer paper of the sheet bundle is cut. Control means for controlling blade travel drive means for moving the blade carrier along a cutting line and blade feed drive means for driving shift means of the blade feed mechanism,
The sheet cutting apparatus according to any one of claims 1 to 14, wherein the blade travel driving means and the blade feed driving means are alternately and alternately driven. The plurality of cutting blades disposed on the blade carrier are provided at shorter intervals and longer intervals than the cutting length of the sheet bundle,
Control means for controlling blade travel drive means for moving the blade carrier along a cutting line and blade feed drive means for driving shift means of the blade feed mechanism,
The blade travel drive means is temporarily stopped in a state where the sheet bundle on the paper table is not in contact with the cutting blade, and the blade feed drive means is driven during the stop, and then the blade feed drive means is stopped. The paper sheet cutting apparatus according to claim 16, wherein the blade travel driving means is driven in a state. A flexible blade carrier that moves along a predetermined cutting line set in advance, and a plurality of cutting blades fixed to the blade carrier at predetermined intervals. A method of cutting a supported sheet bundle,
A paper sheet bundle is pressed and held by the pressing means on the paper platform,
Next, the plurality of cutting blades are guided and guided by the guide means along the cutting line,
A paper sheet bundle cutting method comprising cutting the paper sheet bundle by gradually advancing in the thickness direction while cutting the cutting blade from the uppermost sheet of the paper sheet bundle. The blade carrier is composed of a flexible chain,
19. The paper sheet according to claim 18, wherein each of the plurality of cutting blades is a circular blade and moves from one end to the other end of the paper sheet bundle while rolling along a cutting line of the paper sheet. Bundle cutting method.

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