JP4749172B2 - Cutting discharge device - Google Patents

Description

  The present invention relates to a cutting discharge device that cuts a belt-like object such as a web while traveling and discharges it as a sheet.

  2. Description of the Related Art A cutting and discharging device generally called a printing machine sheeter is a device that takes in a web supplied at high speed, cuts the web into sheets of a predetermined size, and deposits and discharges the cut sheets. This cutting and discharging apparatus is usually arranged on the downstream side of the rotary printing press and is operated synchronously with the printing press.

  Examples of the cutting and discharging apparatus include those described in JP-A-2004-43106.

  The cutting and discharging apparatus disclosed in Japanese Patent Application Laid-Open No. 2004-43106 delivers a sheet cut by a rotary cutter and conveyed by an upper suction conveyance belt means while being pressed onto a lower suction conveyance belt by a peeling member, and dropped onto a stacking unit. It is supposed to let you. Further, in this cutting, two rotary blades are attached to the outer peripheral surface of the rotary cutter of the transfer device, so that, for example, when the rotary paper is cut to B2 when one rotary blade is attached. It is possible to cut the B2 transport paper to B4 without changing the rotational speed of the rotary cutter.

JP 2004-43106 A

  However, it takes a lot of time and labor to adjust the attachment and cutting state of the rotary blade. Depending on the type of printing, the attachment of the rotary blade and the adjustment of the cutting state are very important. It took time and effort, and it took time and effort.

  In view of the above, an object of the present application is to provide a cutting and discharging device that can easily cut a belt-like material as a sheet by cutting into a suitable shape according to the type of printing.

In order to solve the above-described problem, the cutting discharge device (100) according to claim 1 includes cutting parallel running means (50, 55) for cutting the belt-like object (1) to the left and right with respect to the transport direction and running in parallel. A rotary cutter (4) which is composed of a fixed blade and a rotary blade , cuts a strip-like material divided into left and right by rotating the rotary blade with respect to the fixed blade, and obtains a sheet by a rotary cutter (4) Upper suction conveyance belt means (3) for conveying the cut sheet (1a) while sucking from above, and a rear end portion of the single sheet conveyed while being suctioned by the upper suction conveyance belt means downward. A peeling member (5) to be peeled off, a lower suction conveyance belt means (6) for sucking the sheet material peeled off by the peeling member from below and conveying it at a lower speed than the upper suction conveyance belt means, Ejected from lower suction conveyor belt means Sheet deposition unit stacking leafy and (25) to said control unit (60) for a rotary cutter and Peel controls the rotational speed of the member; and a, the fixed blade of the rotary cutter (4b) of said strip One end of the direction perpendicular to the transport direction can be rotated upstream or downstream in the transport direction with the other end as a fulcrum, and the rotation position of the fixed blade is adjusted according to the rotational speed of the rotary blade The configuration is made adjustable.

  According to a second aspect of the present invention, in the cutting and discharging apparatus according to the first aspect, the control device is configured to determine the position of the fixed blade based on the rotation speed of the rotary cutter and the peeling member. To adjust.

  According to the invention which concerns on Claim 1, according to the kind of printing, a strip | belt-shaped object can be easily cut | judged to a suitable shape, and a sheet | seat can be discharged.

  Moreover, according to the invention which concerns on Claim 2, the cutting state of the strip | belt shaped object which changes with the rotational speed of the rotary cylinder to which the rotary blade is attached can be corrected appropriately by moving the position of the fixed blade. it can.

  The best mode for carrying out the invention will be described below with reference to the drawings.

  The cutting discharge device 100 according to the present embodiment is arranged in a discharge unit of a rotary printing press, and a strip 1 (for example, a strip having a width of B2) which is a printed product is formed into a certain shape (for example, a length of B4). It is cut, discharged and stacked. The cutting and discharging apparatus 100 is provided separately from the rotary printing press, and is configured to perform cutting while feeding a belt 1 that has been printed, processed, and wound up into a roll again.

  As shown in FIG. 1, the cutting and discharging apparatus 100 is disposed on the downstream side of a center slit roll 50 for forming a slit for cutting the strip 1 evenly in the left and right directions with respect to the conveyance direction. An expander roll 55 that presses the formed band 1 and divides the band 1 left and right with respect to the conveyance direction, and conveys the band 1 divided in the left and right directions, and the downstream side thereof The first suction conveyance belt means 2 that conveys the belt-shaped object 1 divided into the left and right sides while sucking from below, and the first suction conveyance belt means 2 is disposed downstream of the first suction conveyance belt means 2, and the belt-like object 1 is A rotary cutter 4 that cuts by width and obtains a sheet 1a, a second suction conveyance belt means 3 that is arranged on the downstream side of the rotary cutter 4 and conveys the sheet 1a from above; This second suction While the sheet 1a is being conveyed by the conveying belt means 3, the peeling member 5 that peels the rear end portion of the sheet 1a downward from the second suction conveying belt means 3 and the peeling member 5 are peeled off. Lower suction conveyance which is the third suction conveyance belt means 6 that travels at a lower speed than the second suction conveyance belt means 3 disposed below the second suction conveyance belt means 3 for sucking the single piece 1a. Belt means.

  Further, the trimming discharge device 100 includes a rotary cutter 4 and a control device 60 that controls the rotation speed of the peeling member 5. The control device 60 normally controls the rotational speed to be twice the rotational speed when the strip is cut into B2. That is, the width of the sheet 1 is defined by the center slit roll 50 and the expander roll 55, and the length of the sheet is defined by the rotary cutter 4, so that the strip 1 is cut into the shape of B4. It has become.

  The first suction conveyance belt means 2 includes a thin and strong endless belt 7 in which a large number of ventilation holes (not shown) are provided at a constant pitch in the length direction, and the belt 1 is sucked from its lower surface. However, it is sent at a constant speed in the right direction in FIG. A plurality of first suction conveyance belt means 2 are arranged in parallel along the traveling direction of the strip 1. These first suction conveyance belt means 2 are stretched between a drive shaft 8 and a driven shaft 9 arranged in a direction perpendicular to the traveling direction so as to be in contact with the lower surface of the belt 1, It travels at a slightly higher speed than the traveling speed of the strip 1 discharged from the vehicle. Further, a suction box 10 is disposed at a location surrounded by the first suction / conveying belt means 2, and a suction port (not shown) faces a location where the belt 7 of the belt 7 is to come into contact from the back surface. The suction box 10 is exhausted by a blower connected via a duct (not shown). The drive shaft 8 is rotatably spanned between left and right frames (not shown) of the cutting and discharging device, and receives power from the rotary printing press. The suction box 10 is fixed to the frame and is driven. The shaft 9 is rotatably supported on the frame.

  As shown in FIG. 1, a guide roller 11 for guiding the belt 1 and a belt 1 for pulling the belt 1 are provided between the first suction / conveyance belt means 2, the center slit roll 50, and the expander roll 55. And the 2nd draw rollers 12 and 13 and the compensator roller 14 which contact | connects the strip | belt-shaped object 1 between the 1st and 2nd draw rollers 12 and 13 are arrange | positioned.

  The strip 1 is pulled by the first draw roller 12 through the guide roller 11, further pulled by the second draw roller 13, and then reaches the first suction conveyance belt means 2, where it is further pulled to rotate the rotary cutter 4 and cut. It is necessary to cut the strip 1 for each circumferential length of the plate cylinder. For this reason, on the second draw roller 13, an appropriate size pattern or mark printed on the strip 1 is selected and detected. A sensor (not shown) is arranged. That is, the compensator roller 14 moves based on the signal detected by the sensor to adjust the length of the path of the strip 1 between the first and second draw rollers 12, 13, thereby adjusting the rotary cutter 4 and the strip 1. The phase with the plate cylinder circumference pitch is adjusted.

  When the strip 1 from the rotary printing press enters the cutting and discharging device 100, the compensator roller 14 aligns the phase of the plate cylinder pitch and the rotary cutter 4, and the first suction conveyance belt means 2 is connected to the strip 1 Is sent to the rotary cutter 4 at a constant speed.

  The first suction / conveyance belt means 2 may be disposed so as to be in contact with the upper surface of the strip 1. Further, the first suction / conveyance belt means 2 may be omitted, and the belt 1 may be directly fed from the second draw roller 13 to the rotary cutter 4.

  The rotary cutter 4 cuts the strip 1 sent by the first suction conveyance belt means 2 at the boundary portion of the printed pattern. The rotary cutter 4 has a rotary blade 4a and a fixed blade 4b. As shown in FIG. 2, the fixed blade 4b is formed on the lower surface of the strip 1 fed from the first suction conveyance belt means 2. The right end (hereinafter referred to as “one end”) in the direction orthogonal to the transport direction of the belt-like object is transported to the frame (not shown) so as to be in contact with the left end (hereinafter referred to as “other end”) as a fulcrum. It is attached to rotate in the direction upstream or downstream. On the other hand, the rotary blade 4a is mounted on the rotary cylinder so as to periodically contact the fixed blade 4b from the upper surface of the strip 1. And the fixed blade 4b moves one end to the upstream or downstream side in the transport direction according to the rotational speed of the rotary cylinder to which the rotary blade 4a is attached, and the position of the fixed blade is adjusted. Specifically, when the rotational speeds of the rotary cutter 4 and the peeling member 5 are high, one end of the fixed blade is moved downstream in the transport direction as shown in the figure. If it does in this way, the strip 1 can be cut | judged by the rotary cutter 4 into the sheet | seat 1a of an appropriate shape.

  Note that the position of the fixed blade 4 b may be automatically adjusted by the control device 60 based on the rotational speeds of the rotary cutter 4 and the peeling member 5.

  Further, the rotary blade 4a of the rotary cutter 4 rotates in accordance with the pattern pitch transferred to the plate cylinder of the rotary printing press. Therefore, the strip 1 is accurately cut at the printed pattern pitch. Will be.

  Between the rotary cutter 4 and the upper suction conveyance belt means 3, a Coanda box 15 for conveying the sheet 1 a cut by the rotary cutter 4 to the upper suction conveyance belt means 3 is provided.

  As shown in FIGS. 3A and 3B, the Coanda box 15 has a large number of air ejection holes 15a on one plane so that air flows along one plane of the elongated box along the longitudinal direction of the box. It is formed so as to correspond to each of the belts 7 of the first suction / conveyance belt means 2 and arranged along the traveling direction of the sheet 1a. As shown in FIG. 3A, when air is supplied from a blower (not shown) into the Coanda box 15, the air is fed from a large number of air ejection holes 15 a along one plane of the ejection box 1 a. The sheet 1a is conveyed on the Coanda box 15 toward the second suction / conveyance belt means 3 without fluttering by the Coanda effect. The strip 1 or the sheet 1a is smoothly transported to the next second suction / conveyance belt means 3 and properly adsorbed by the airflow generated by the Coanda box 15.

  Note that the Coanda box 15 can be omitted if the sheet 1a does not flutter. Further, the Coanda box 15 can be arranged on the upper side of the traveling sheet 1a.

  The upper suction conveyance belt means 3 as the second suction conveyance belt means receives the tip of the band 1 just before the rotary cutter 4 cuts the band 1 and pulls it together with the first suction conveyance belt means 2. When 4 cuts the strip 1, the separated sheet 1 a is conveyed in the right direction in FIG. 1. The upper suction conveyance belt means 3 is driven slightly faster than the first suction conveyance belt means 2. As shown in FIG. 4B, the upper suction / conveying belt means 3 includes a thin endless belt 16 in which a large number of small holes 16a for ventilation are formed. As shown in FIG. These belts 16 are arranged between a drive shaft 17 and a driven shaft 18 that are arranged in a direction perpendicular to the traveling direction so that the lower traveling portion thereof is in contact with the upper surfaces of the strip 1 and the sheet 1a. And is driven at a speed slightly higher than the traveling speed of the belt 7 of the first suction conveyance belt means 2. The drive shaft 17 is stretched between left and right frames (not shown) of the cutting and discharging device, and is rotated by power from a rotary printing press. The belt 16 of the upper suction conveyance belt means 3 is moved to the belt of the first suction conveyance belt means 2. Drive at a speed slightly faster than 7.

  As shown in FIG. 4A, a suction box 19 is arranged for each belt 16 of the upper suction conveyance belt means 3, and suction ports 19a, 19b, 19c, 19d formed on the lower surface of each suction box 19. However, the upper suction conveyance belt means 3 faces the portion of the belt 16 to be in contact with the sheet 1a from the back side. The suction ports 19a, 19b, 19c, and 19d are sequentially arranged along the traveling direction of the sheet 1a, and are formed so that the opening area decreases from the upstream to the downstream. Specifically, the suction ports 19a, 19b, and 19c are long holes that are formed so that the opening area gradually decreases between them, and the suction ports 19d are arranged so that the pitch gradually increases between them. Round holes. For this reason, the suction force of the upper suction conveyance belt means 3 is reduced toward the downstream side, and the restraining force on the single wafer 1a is gradually relaxed. Each suction box 19 is connected to a blower (not shown) and exhausted by a suction action by the blower.

As shown in FIG. 1, the peeling member 5 is arranged on the downstream side of the upper suction conveyance belt means 3, and as shown in FIG. 5, the single wafer 1a conveyed by the upper suction conveyance belt means 3 is provided. Is peeled downward from the belt 16 of the upper suction conveying belt means 3. The peeling member 5 is specifically constituted by a brush, and is intermittently disposed on the drive shaft 20 passed between the left and right frames (not shown) so as to enter between the suction boxes 19 of the upper suction conveyance belt means 3. Yes. The peeling member 5 can also be constituted by a member such as a cam other than a brush. The peeling member 5 is rotated by the control device 60 at the same speed as the rotation speed of the rotary cutter 4. When the sheet 1 a is conveyed by the upper suction conveyance belt means 3, the sheet is separated. It hits the rear end of 1a, and the rear end is peeled off from the surface of the belt 16 of the upper suction conveyance belt means 3 against the suction force of the upper suction conveyance belt means 3. Since the suction ports 19c and 19d of the suction box 19 are small in the vicinity of the peeling member 5, the suction force of the upper suction conveyance belt means 3 is reduced, and the rear end portion of the sheet 1a is the upper suction. It is easily peeled off from the belt 16 of the conveying belt means 3. The rear end portion of the peeled sheet 1a is received and conveyed by the lower suction conveyance belt means which is the third suction conveyance belt means 6.

  In order to transfer the sheet 1a from the upper suction conveyance belt means 3 to the lower suction conveyance belt means 6 more smoothly and reliably, the contact portion of the peeling member 5 with the sheet 1a is set to the sheet 1a. It is desirable to change slightly according to the material, speed, etc. Therefore, a phase changing means for shifting the phase of the peeling member 5 with respect to the sheet 1 a is provided in the driving portion of the peeling member 5. The phase changing means adopts a known configuration, and detailed description thereof is omitted.

  As shown in FIGS. 1 and 5, the lower suction conveyance belt means 6 includes an endless belt 21, and a drive shaft 22 and a driven shaft 23 that stretch the belt 21 in the traveling direction of the sheet 1a.

  The belt 21 of the lower suction conveyance belt means 6 is a tough thin belt provided with a large number of ventilation holes at a constant pitch in the width direction and the length direction, like the belt 16 of the upper suction conveyance belt means 3. A plurality of strips 1 are arranged in parallel along the traveling direction of the strip 1. These belts 21 are arranged so as to receive the sheet 1a from the lower surface thereof, and are hung between a driving shaft 22 on the start end side and a driven shaft 23 on the rear end side arranged in a direction perpendicular to the traveling direction. Then, the vehicle travels at a speed of, for example, about 1/10 to 1/20, which is lower than the traveling speed of the belt 16 of the upper suction conveyance belt means 3.

  The drive shaft 22 on the start end side is formed as a suction roller, and a number of suction holes 22a are formed on the surface thereof. The drive shaft 22 is disposed directly below the peeling member 5. The drive shaft 22 is connected to a blower via a rotary joint (not shown), and sucks air from the suction hole 22a so as to attract the sheet 1a on the belt 16 of the upper suction conveyance belt means 3. As shown in FIG. 4, when the peeling member 5 peels off the sheet 1 a from the belt 16 of the upper suction conveyance belt means 3, the rear end of the sheet 1 a is the belt 21 of the lower suction conveyance belt means 6. It is adsorbed on the surface of the drive shaft 22 via

  Further, a suction box 24 is disposed at a position surrounded by the endless belt 21 of the lower suction conveyance belt means 6, and although not shown, its suction port faces the upper travel path of the belt 21 of the lower suction conveyance belt means 6 from its rear surface. It is out. The suction port is a long hole extending along the traveling direction of the sheet 1a, and the opening area is reduced toward the downstream side. Therefore, the suction force of the sheet 1a is also reduced toward the downstream. The suction box 24 is exhausted by a blower (not shown). The belt 21 of the lower suction conveyance belt means 6 travels at a lower speed than the belt 16 of the upper suction conveyance belt means 3, receives the sheet 1 a peeled off from the upper suction conveyance belt means 3, and decelerates it. 1 is discharged onto the pallet 26 of the deposition unit 25 shown in FIG.

  As shown in FIG. 1, the accumulation unit 25 includes a pallet 26 that is suspended by a chain 27 and the like so as to be movable up and down. The pallet 26 is controlled by a control device (not shown) and descends as the amount of sheets 1a deposited increases.

  In addition, joggers 28 a and 28 b and a temporary receiving device 29 are provided on the upper portion of the deposition unit 25.

  The joggers 28a and 28b apply vibration to the single-piece 1a discharged from the lower suction conveyance belt means 6 onto the mountain 1b of the single-piece 1a to align their edges.

  When the peak 1b of the sheet 1a reaches a certain height, the temporary receiving device 29 advances the fork-shaped receiving member 29a from below the lower suction conveyance belt means 6 onto the peak 1b of the sheet 1a. It is made to receive the sheet 1a which falls. While receiving the succeeding sheet 1a with this temporary receiving device 29, the pile 1b of the already stacked sheets 1a is carried out of the machine, and a new pallet 26 is raised to just below the receiving member 29a. Then, the receiving member 29a is moved back to the original position, and the temporarily received single wafer 1a is dropped onto the pallet 26. Thereafter, the sheet 1a is deposited on the pallet 26 in the same manner as the previous time.

  When the temporary receiving device 29 is provided in the stacking portion 25 in this way, a space for the receiving member 29a of the temporary receiving device 29 to enter and exit from the stacking portion 25 must be provided. The drop H from the means 6 until the sheet 1a drops onto the peak 1b of the sheet 1a is increased, and the sheet 1a is simply released from the lower suction conveyance belt means 6 onto the stacking portion 25. It cannot be properly stacked due to bending or breaking.

Therefore, as shown in FIG. 1, a Coanda box 30 is installed above the accumulation unit 25 so as to be continuous with the belt 16 of the upper suction conveyance belt means 3.
As shown in FIG. 6, the Coanda box 30 has a large number of air ejection holes 30 a formed on the bottom surface so that air flows along the longitudinal direction of the box on the bottom surface of the elongated box. Corresponding to each of the belts 16 of the conveying belt means 3, it is arranged along the traveling direction of the sheet 1a. The air ejection holes 30a are arranged so that the pitch increases from the upstream side to the downstream side of the flow of the sheet 1a, and the flow velocity of the air decreases as it goes downstream. . As shown in FIG. 6A, when air is supplied from a blower (not shown) into the Coanda box 30, the air is fed from a large number of air ejection holes 30a along the bottom surface of the ejection box 1a. The sheet 1a is conveyed without fluttering under the Coanda box 30 due to the Coanda effect. Further, since the suction force of the Coanda box 30 decreases toward the downstream side, as shown in FIG. 7, the tip of the sheet 1a gradually descends and comes into contact with the front jogger 28a. Thereby, even when the said head H in the deposition part 25 is large, the sheet 1a is stacked appropriately.

  The Coanda box 30 may be installed horizontally on the deposition unit 25, but is desirably installed so as to be inclined slightly downward as shown in FIGS. For this reason, the sheet 1a descends at a more appropriate angle and comes into contact with the front jogger 28a.

  Next, a series of operations of this trimming discharge device will be described. It is assumed that the pattern transferred to the plate cylinder of the rotary printing press is divided into four and transferred. Therefore, the cutting and discharging apparatus of the present embodiment is for cutting, for example, a B2 width strip into a size of B4.

  First, the strip 1 discharged from the rotary printing machine is equally divided to the left and right with respect to the conveyance direction by the center slit roll 50 and the expander roll 55 that function as the cutting parallel running means of the present application.

  Next, the strip 1 is cut by the rotary cutter 4 through the rollers 12, 13, and 14. The rotation speed of the rotary cutter 4 is controlled by the control device 60 so that the rotary cutter 4 rotates twice with respect to one rotation of the plate cylinder of the rotary printing press. And the rotary cutter 4 cut | disconnects the strip | belt-shaped object 1 whenever it rotates once. At the time of this cutting, the front end of the strip 1 passes through the rotary cutter 4 before entering the cutting state, enters under the belt 16 of the upper suction conveyance belt means 3, and is sucked upstream of the upper suction conveyance belt means 3. The For this reason, the belt-like object 1 is pulled between the upper suction conveyance belt means 3 and the first suction conveyance belt means 2 with an appropriate force. The strip 1 is cut by the rotary cutter 4 immediately after that.

  In addition, since the cutting state of the sheet 1a obtained by cutting changes as the rotational speed of the rotary cutter increases, the rotary cutter 4 is fixed to adjust the sheet 1a to an appropriate cutting state. One end of the blade 4b is adjusted in advance downstream with respect to the transport direction.

  The belt 16 of the upper suction conveyance belt means 3 travels at a slightly higher speed than the belt 7 of the first suction conveyance belt means 2, and therefore, between the rear end of the separated sheet 1 a and the front end of the strip 1. There is a gap in it. Thereby, it is possible to prevent the tip of the succeeding sheet 1a from colliding with the rear end of the preceding sheet 1a.

When the cut sheet 1a is conveyed by the upper suction conveyance belt means 3 above the lower suction conveyance belt means 6, the peeling member 5 pushes the rear end portion of the sheet 1a to the upper suction conveyance belt means 3. peeled against the belt 16 to the suction force, as shown in FIG. 5, it presses onto the driving roller 22 under suction and conveyor belt means 6. The rear end portion of the sheet 1a is curved following the surface of the driving roller 22, so that the leading edge of the subsequent sheet 1a does not sink under the preceding sheet 1a but behind the preceding sheet 1a. Pass over the edge. The single wafer 1a adsorbed by the drive roller 22 is also adsorbed on the belt 21 and discharged onto the stacking portion 25 in a decelerated state.

  Further, the peeling member 5 is controlled by the control device 60 at the same speed as the rotational speed of the rotary cutter 4.

  The front end portion of the sheet 1 a that comes out from the belt 21 of the lower suction conveyance belt means 6 at a low speed is captured by the Coanda box 30 and travels along the bottom surface of the Coanda box 30. Since the suction force of the Coanda box 30 decreases as it goes toward the tip of the box, the sheet 1a is gradually lowered to fall on the head so that it does not bend or bend over the mountain 1b of the sheet 1a. To deposit.

  When the crest 1b of the sheet 1a reaches a certain height, the receiving member 29a of the temporary receiving device 29 advances from below the lower suction conveyance belt means 6 onto the crest 1b of the sheet 1a and drops. Receive leaf 1a. While receiving the succeeding sheet 1a with this temporary receiving device 29, the pile 1b of the already stacked sheets 1a is carried out of the machine, and a new pallet 26 is raised to just below the receiving member 29a. Then, the receiving member 29a is moved back to the original position, and the temporarily received single wafer 1a is dropped onto the pallet 26.

  Thereafter, the sheet 1a is deposited on the pallet 26 in the same manner as the previous time.

  Further, when cutting in the state of B2, although not shown, the center slit roll 50 and the expander roll 55 are avoided from the strip 1 and the rotational speed of the rotary cutter 4 and the peeling member 5 is set to a predetermined rotational speed. What is necessary is just to control.

  In addition, this invention is not limited to the said embodiment, It can implement with a various form.

It is the whole elevation view of the cutting discharge device concerning the present invention. It is a schematic structure figure of the fixed blade of a rotary cutter. (A) is a vertical sectional view of a Coanda box arranged on the rotary cutter side of the cutting discharge device, and (B) is a plan view. (A) is a bottom view of the suction box of the upper suction conveyance belt means in the cutting and discharging apparatus, and (B) is a partially cutaway plan view of the conveyance belt means. It is a partial notch figure which shows the peeling member and lower suction conveyance belt means of a cutting discharge apparatus. (A) is a vertical cross-sectional view of a Coanda box disposed on the stacking portion of the cutting discharge device, and (B) is a bottom view. It is an elevation view which shows the accumulation part of a cutting discharge apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Band-shaped object 1a Single sheet | seat 3 Upper suction conveyance belt means 4 Rotary cutter 5 Stripping member 6 Lower suction conveyance belt means 15,30 Coanda box 22 Suction roller 25 Accumulation part 50 Center slit roll 55 Expander roll

Claims (2)

Cutting parallel running means for cutting the belt-like object to the left and right with respect to the conveying direction and running in parallel,
A rotary cutter that consists of a fixed blade and a rotary blade, and cuts the band-like material divided into left and right by rotating the rotary blade with respect to the fixed blade ,
Upper suction conveyance belt means for conveying a sheet cut by the rotary cutter while sucking from above,
A peeling member that peels downward the rear end portion of the sheet conveyed while being sucked by the upper suction conveying belt means;
A lower suction conveyance belt means for sucking the sheet material peeled off by the peeling member from the lower side and conveying it at a lower speed than the upper suction conveyance belt means;
A stacking unit for stacking sheets discharged from the lower suction conveyance belt means;
The rotary cutter and a control device for controlling the rotation speed of the peeling member,
The rotary blade of the rotary cutter can be rotated upstream or downstream in the transport direction with one end in the direction perpendicular to the transport direction of the belt as a fulcrum, and the rotational position of the fixed blade is A cutting and discharging apparatus characterized in that it can be adjusted by an adjusting means in accordance with the number of rotations of the rotary blade .   The cutting and discharging apparatus according to claim 1, wherein the control device adjusts a position of the fixed blade based on a rotation speed of the rotary cutter and a peeling member.

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