JPH09328251A - Cut sheet discharging device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To cut and discharge a strip so as not to produce any tinting. SOLUTION: A strip 1 is conveyed by a first endless conveyor belt 11 as drawing it by suction. Likewise the strip work is conveyed by a second endless conveyor belt 12 at the more downstream side than the first endless conveyor belt as drawing by subction. The strip work astride an interval between both first and second endless conveyor belts 11 and 12 is cut off by a rotary cutter 13. A rear end of a sheet work 1a drawn by the second endless conveyor belt is peeled downward by a peeling member 14. The sheet work peeled by this peeling member is further drawn by a third endless conveyor belt 15 traveling at the lower speed than the second endless conveyor belt. Since the sheet work is not fluttered in a range from cutting to discharging, it will not be fouled and damaged at all.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting and discharging device which cuts a web-like strip while running and discharges it as a sheet.

[0002]

2. Description of the Related Art A cutting and discharging device is a device for cutting a strip of printing paper or the like discharged from a rotary printing machine into pieces each having a predetermined length, and depositing the sheets. Those described in JP-A-57-77156, JP-B-60-30624, JP-A-50-59967, JP-A-4-313559, JP-A-61-108254 and JP-A-3-51753. Are known.

[0003]

Problems to be Solved by the Invention JP-A-57-7715
The cutting and discharging device of No. 6 is inefficient because the belt-like material is once stopped and cut by the cutter. Tokunosho 6
Nos. 0-30624, 50-59967, and 4-313559 of JP-A No. 4-313559 are designed to eject the air from a large number of air ejection holes in the conveyance direction of the belt to convey the belt. There is a possibility that the band-like material may flutter and the cutting may become uncertain, and the printing ink may be rubbed to cause stains. In the case of No. 61-108254, the cut sheets are sucked by the endless conveyor belt and discharged, so that flapping of the sheets can be prevented.
When discharged from the endless conveyor belt at a high speed, the single-wafers may be scattered. No. 3-51753 of Kaikaidaira is designed to suck the high-speed traveling single-wafer products with an endless conveyor belt, but when the single-wafer products are placed on the endless conveyor belt, the single-wafer products may be disturbed or the single-wafer products may be disturbed. There is a possibility that printing stains may occur due to rubbing between each other.

Therefore, it is an object of the present invention to provide a cutting and discharging device which can solve such a problem.

[0005]

In order to achieve the above-mentioned object, the invention of claim 1 is a first endless conveyor belt 11 which conveys a strip 1 while suctioning it from the upper surface or the lower surface thereof, and the strip 1 described above. A second endless conveyor belt 12 arranged downstream of the first endless conveyor belt 11 that conveys while sucking from above and the first and second endless conveyor belts 11, 12. A rotary cutter 13 arranged between both endless conveyor belts 11 and 12 for cutting the strip 1 to obtain the sheet 1a, and the sheet 1a sucked by the second endless conveyor belt 12 A rear end portion of the second endless conveyor belt 12 is peeled downward, and a peeling member 14 disposed in the vicinity of the suction release portion of the second endless conveyor belt 12 is peeled off by the peeling member 14. Suck the single leaf 1a That the second endless conveyor belt 12
The third aspect of the present invention employs a cutting and ejecting device, which comprises a third endless conveyor belt 15 running at a lower speed than the second endless conveyor belt 12 disposed below the suction release part of the invention. The first blower means 37 is provided between the rotary cutter 13 and the second endless conveyor belt 12 for generating a negative pressure that presses the belt-like object 1 on its traveling path. According to the invention of claim 3, the brush roller 38 for pressing the strip 1 against the second endless conveyor belt 12 starts suction of the second endless conveyor belt 12. The structure of the cutting and discharging device according to claim 1 provided near the portion is adopted, and the invention of claim 4 is such that the suction force of each of the second and third endless conveyor belts 12 and 15 is directed to the downstream side. Will decrease with According to the invention of claim 5, the peeling member 14 can change the phase with respect to the second endless conveyor belt 12. Phase changing means 43, 44
The configuration of the cutting and discharging device according to claim 1 is provided.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1, this cutting and discharging device is arranged at a discharging portion of a rotary printing machine, and cuts and discharges a belt-shaped material 1 which is a printed material to a predetermined length and stacks it.

As shown in FIG. 1, this rotary printing machine has a paper feed section 3 for feeding the strip 1 from a winding roll 2 having the strip 1 wound thereon, and a printing section for printing on the strip 1. 4, a drying unit 5 for drying the printing ink, a cooling unit 6 for cooling the strip 1 heated during drying,
The folding unit 7 and the cutting and discharging device 8 are provided. In this case, the printing unit 4 simultaneously prints the four color inks on both sides of the strip 1 which is a roll of paper, and the blanket cylinder 9 is sandwiched between the front and back of the strip 1 for each color unit.
And the plate cylinder 10 are provided in pairs.

When printing, the strip 1 is unwound from the take-up roll 2 of the paper feeding unit 3, four colors of ink are printed on both sides of the printing unit 4, and the surface ink is heated by the drying unit 5. Drying, heating by drying is removed by the cooling roll of the cooling unit 6, and then bent and cut at the folding unit 7 and discharged, or cut into a certain size by the cutting discharge device 8 and stacked in a mountain shape. Becomes

The cutting and discharging device 8 may be provided separately from the rotary printing machine. In that case,
The band-shaped material 1 that has been subjected to printing, processing and the like is rewound into a roll shape, and the band-shaped material 1 is again fed from the roll and cut.

As shown in FIG. 2, the cutting / discharging device 8 sucks the belt 1 while sucking the belt 1 from its upper surface or lower surface, and sucks the belt 1 from its upper surface. The second endless conveyor belt 1 arranged downstream of the first endless conveyor belt 11 that is conveyed while
2 and the two endless conveyor belts 11 and 12 for cutting the belt-shaped material 1 which is straddled between the first and second endless conveyor belts 11 and 12 to obtain a sheet 1a (see FIGS. 10 to 14). The rotary cutter 13 arranged between the second endless conveyor belt 12 and the second endless conveyor belt 12 for pulling the rear end portion of the sheet 1a sucked downward from the second endless conveyor belt 12 A peeling member 14 arranged near the suction releasing portion of the conveyor belt 12 and a lower portion near the suction releasing portion of the second endless conveyor belt 12 that sucks the sheet 1a peeled off by the peeling member 14. And a third endless conveyor belt 15 that travels at a lower speed than the second endless conveyor belt 12 that is disposed in.

The first endless conveyor belt 11 has a large number of small holes 11a for ventilation, as shown in FIGS.
Is a thin and tough belt provided at a constant pitch in the width direction and the length direction, and is configured to feed the belt-like material 1 in the right direction in FIG. 2 at a constant speed while sucking the lower surface thereof. A plurality of first endless conveyor belts 11 are arranged in parallel along the traveling direction of the strip 1. The first endless conveyor belt 11 includes a drive shaft 16 and a driven shaft 1 which are arranged so as to come into contact with the lower surface of the strip 1 at right angles to the traveling direction thereof.
It is designed to run at a speed slightly higher than the running speed of the strip 1 discharged from the rotary printing press. Further, a suction box 18 is arranged in a portion surrounded by the first endless conveyor belt 11, and its suction port 19 faces from a rear surface thereof to a portion of the first endless conveyor belt 11 which should come into contact with the belt-shaped material 1. . In this case, the suction port 19 is a strip 1
Is a long hole extending along the traveling direction, and a plurality of elongated holes are opposed to each of the first endless conveyor belts 11. The suction box 18 is exhausted by a blower (not shown) connected via a duct. The drive shaft 1
6 is rotatably wound between the left and right frames 20, 20 of the cutting and discharging device 8 so that power is obtained from the rotary printing machine. The suction box 18 is attached to the frames 20, 20. The driven shaft 17 is fixed to the suction box 18 via a bracket 21 so as to be rotatable.

Between the first endless conveyor belt 11 and the rotary printing machine, as shown in FIGS. 1 and 2,
A guide roller 22 that guides the strip 1 discharged from the rotary printing press, first and second draw rollers 23 and 24 that pull the strip 1, and a strip between the first and second draw rollers 23 and 24. A compensator roller 25 that contacts the object 1 is arranged. The strip 1 discharged from the rotary printing press passes through the guide roller 22 and is pulled by the first draw roller 23.
After being further pulled by 4, the first endless conveyor belt 1
1 is reached and further pulled there to reach the rotary cutter 13 to be cut. It is necessary to cut the strip 1 for each circumference of the plate cylinder. Therefore, on the second draw roller 24, a pattern, a mark or the like having an appropriate size printed on the strip 1 should be selected. A sensor (not shown) for detecting is arranged. That is, the compensator roller 25 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 23, 24 to adjust the rotary cutter 13 and the strip. It is designed to match the phase with the plate cylinder circumference pitch of 1.

When the strip 1 from the rotary printing machine enters the cutting and discharging device 8, however, the compensator roller 2
5, the plate cylinder pitch and the rotary cutter 13 are aligned in phase, and the first endless conveyor belt 11 sucks the strip 1 and sends it to the rotary cutter 13 at a constant speed.

The rotary cutter 13 is adapted to cut the strip 1 sent by the first endless conveyor belt 11 at the boundary of the printed pattern. The rotary cutter 13, as shown in FIG.
a having a fixed blade 13b and a fixed blade 13b
Is fixed to the frames 20 and 20 so as to contact the lower surface of the strip 1 sent out from the first endless conveyor belt 11, and the rotary blade 13a periodically contacts the fixed blade 13b from the upper surface of the strip 1. Mounted on a rotating cylinder as. Rotary blade 13 of rotary cutter 13
a is adapted to rotate at the same number of revolutions as the plate cylinder 10 of the printing unit 4, so that the strip 1 is accurately cut at the printed pattern pitch.

In order to smoothly transfer the strip 1 from the first endless conveyor belt 11 to the rotary cutter 13 between the downstream end of the first endless conveyor belt 11 and the rotary cutter 13. A comb-shaped guide body 26 is provided. Further, between the rotary cutter 13 and the second endless conveyor belt 12, a large number of rollers 27 are arranged on a plane along the traveling path of the belt-shaped article 1 and the belt-shaped article 1 or the sheet 1a is placed in the first position. It smoothly guides to the second endless conveyor belt 12.

The second endless conveyor belt 12 receives the tip of the belt 1 immediately before the rotary cutter 13 cuts the belt 1 and pulls it together with the first endless conveyor belt 11. When 1 is cut, the separated sheet 1a is further conveyed rightward in FIG. Second endless conveyor belt 1
2 runs slightly faster than the first endless conveyor belt 11. As shown in FIG. 5, the second endless conveyor belt 12 has a large number of small holes 12 for ventilation.
It is a thin belt provided with a, and a plurality of belts are arranged in parallel along the traveling direction of the strip 1. These second endless conveyor belts 12 are arranged between a drive shaft 28 and a driven shaft 29 which are arranged in a direction perpendicular to the traveling direction so that the traveling portion on the lower side thereof contacts the upper surface of the strip 1. The first endless conveyor belt 11 is stretched and driven at a speed slightly higher than the traveling speed of the first endless conveyor belt 11. The drive shaft 28 is stretched between the left and right frames 20, 20 of the cutting and discharging device and is rotated by the power from the rotary printing press to move the second endless conveyor belt 12 at a speed slightly higher than that of the first endless conveyor belt 11. It is designed to run on. Subframes 30 and 30 extending along the inside of the frames 20 and 20 are attached to the drive shaft 28.
The driven shaft 29 is rotatably held at 0 and 30. Also, for each of the second endless conveyor belts 12, FIG.
And the suction boxes 31a and 31b are arranged as shown in FIG. 5, and the suction ports 32 formed on the lower surface of the suction boxes 31a and 31b,
33 is exposed from the rear surface of the second endless conveyor belt 12 at a position to be in contact with the belt-shaped material 1. Suction boxes 31a, 31
In this case, b is divided into front and rear in the running direction of the strip 1. The suction ports 32 and 33 are long holes extending along the traveling direction of the strip 1, and the rear suction box 31b is formed to have an opening area smaller than that of the front suction box 31a. Therefore, the suction force of the second endless conveyor belt 12 is reduced on the downstream side. Each suction box 31
a and 31b are connected to a plurality of rows of ducts 34 that are bridged between the sub-frames 30 and 30 on both sides, and each duct 34 is connected to a collecting box 35 fixed to the sub-frames 30 and 30, and the collecting box 35 is It is ventilated connected to a blower (not shown). A damper 36 for adjusting the air volume is provided at a location where each duct 34 is connected to the collecting box 35. Therefore, the suction force is also adjusted by adjusting the air volume by each damper 36.

As shown in FIG. 2, between the rotary cutter 13 and the second endless conveyor belt 12, a belt-like material 1 is pressed against a roller 27 group which is a traveling path thereof. First blower means is provided for generating pressure. The first blower is specifically a blower 37 such as a sirocco fan, and is configured to generate an air flow from above to below the traveling path of the belt-like material 1. That is, when the strip 1 is cut by the rotary cutter 13, the tip of the strip 1 tries to fly upward due to the air flow due to the rotation of the rotary teeth 13a, but the tip of the strip 1 rises up due to the air flow by the first blowing means. Therefore, it is reliably adsorbed to the second endless conveyor belt 12.

Further, in the vicinity of the suction start portion below the upstream side of the second endless conveyor belt 12, that is, the suction box 31.
As shown in FIG. 2, a brush roller 38 that rotates at a peripheral speed substantially the same as the traveling speed of the second endless conveyor belt 12 is provided near the start end of a. The belt 1 is moved by the brush roller 38 to the second endless conveyor belt 12
Is pressed to the second endless conveyor belt 12 with a moderate force.
Will be accurately adsorbed on. This brush roller 3
8 is preferably used in combination with the air nozzle 39. The air nozzle 39 is arranged slightly upstream of the brush roller 38,
The belt 1 is pressed against the second endless conveyor belt 12 by the air blown from there.

When the strip 1 is sent from the first endless conveyor belt 11 to the second endless conveyor belt 12,
Tension is temporarily applied between the endless conveyor belts 11 and 12, and the rotary cutter 13 simultaneously cuts the tension. The sheet 1a thus obtained is the second endless conveyor belt 12
The sheet is conveyed rightward in FIG. On the other hand, the cut end of the strip 1 advances on the roller 27 group slightly behind the rear end of the sheet 1a, and the negative pressure generated by the blower 37 prevents it from rising above the traveling path. It enters under the endless conveyor belt 12. At the same time, the wind from the air nozzle 39 and the brush roller 38 surely contact and suck the second endless conveyor belt 12 and convey the sheet to the right in FIG.

The peeling member 14 is arranged on the downstream side of the second endless conveyor belt 12 as shown in FIG. 2, and is conveyed by the second endless conveyor belt 12 as shown in FIG. The sheet 1a is transferred to the second endless conveyor belt 12
It has the function of peeling from below. Specifically, the peeling member 14 is made up of a brush, as shown in FIG.
As described above, it is intermittently arranged on the drive shaft 40 passed between the left and right sub-frames 30, 30 so as to enter the gap between the second endless conveyor belts 12. The peeling member 14 may be formed of a member such as a cam other than the brush. The peeling member 14 is configured to rotate at the same number of revolutions as the plate cylinder 10 of the printing machine. When the sheet 1a is conveyed by the second endless conveyor belt 12, after the sheet 1a is conveyed. The end portion is hit and the rear end portion is peeled off from the surface of the endless conveyor belt 12 against the suction force of the second endless conveyor belt 12. Since the suction port 33 of the suction box 31b is small in the vicinity of the peeling member 14, the suction force of the endless conveyor belt 12 is reduced, and the rear end of the sheet 1a is the second endless conveyor. Belt 12
Will be easily torn off.

However, the sheet 1a is conveyed by the second endless conveyor belt 12 for a while even after the rear end of the sheet 1a is peeled off by the peeling member 14 and is removed from the suction port 33 of the suction box 31b. The whole is peeled off from the second endless conveyor belt 12 and received on the third endless conveyor belt 15.

In order to transfer the sheet 1a from the second endless conveyor belt 12 to the third endless conveyor belt 15 more smoothly and surely, the peeling member 14 should contact the sheet 1a. It is desirable to slightly change the contact point according to the material, speed, etc. of the sheet 1a. Therefore, the peeling member 1
The phase changing means for shifting the phase relative to the second endless conveyor belt 12 and the sheet 1a of 4 is the peeling member 1.
4 are provided in the drive unit. The phase changing means is shown in FIG.
And as shown in FIG. 7, the drive shaft 28 of the second endless conveyor belt 12 and the rotary shaft 4 of the peeling member 14
0 and an endless winding belt 43 wound via pulleys 41 and 42, and an intermediate member for contacting the winding belt 43 and changing a winding angle of the winding belt 43 with respect to the pulley 42. And a pulley 44. The intermediate pulley 44 is axially supported on a slider 45, and the slider 45 is fixed to the guide rail 4 fixed to the subframe 30.
It is gripped by 6. A male screw of a feed screw 48 rotatably held by a bracket 47 on the subframe 30 is screwed onto the slider 45. Further, a tension pulley 49 that sandwiches the winding belt 43 together with the intermediate pulley 44 is attached to the slider 45 via an arm 50. As a result, as shown in FIGS. 9A and 9B, when the feed screw 48 is turned, the slider 45 moves along the guide rail 46 and the position of the intermediate pulley 44 with respect to the winding belt 43 is changed, so that the peeling is performed. The phase of the member 14 will be shifted. This phase adjustment is possible even while the winding belt 43 is being driven.

The third endless conveyor belt 15 runs at a speed lower than that of the second endless conveyor belt 12, and removes the sheet 1a peeled off from the second endless conveyor belt 12. After receiving and slowing down, pallet 5
1 (see FIG. 2) and the like. As shown in FIGS. 8 and 9, the third endless conveyor belt 1
Reference numeral 5 is a tough thin belt in which a large number of small holes 15a for ventilation are provided in the width direction and the length direction at a constant pitch, and a plurality of tough belts are arranged in parallel along the running direction of the belt-shaped material 1, and about 5
It is stretched so that it inclines downward only once. These third endless conveyor belts 15 are arranged so as to receive the sheet 1a from the lower surface thereof, and are stretched between a drive shaft 52 and a driven shaft 53 arranged in a direction perpendicular to the traveling direction thereof, For example, the traveling speed of the second endless conveyor belt 12 is 1 /
It is designed to run at a speed of about 10 to 1/20. Further, a suction box 54 is arranged in a position surrounded by the third endless conveyor belt 15, and its suction port 55 faces the upper traveling path of the third endless conveyor belt 15 from its rear surface. The suction port 55 is an elongated hole extending along the traveling direction of the sheet 1a, and the opening area thereof decreases toward the downstream side, so that the suction force of the sheet 1a also decreases toward the downstream side. . The suction box 54 is exhausted by a blower (not shown). In addition, the blower of the suction box 54 is the suction box 31b so that the sheet 1a can be reliably received from the second endless conveyor belt 12.
The blower has a suction capacity higher than that of the blower, and the small hole 15a is formed larger than the small hole 12a.

The suction box 54 is provided with an air nozzle 56 for ejecting air forward between the third endless conveyor belts 15 and the wind from the third endless conveyor belt 15. An air layer is formed between the sheet-like articles 1a that are discharged from the sheet 15 and are about to overlap with each other, and the sheet-like articles 1a are discharged so that the sheet-like articles 1a do not adhere to each other.
Further, as shown in FIG. 2, the third endless conveyor belt 1
In front of 5, the blower 57 composed of a sirocco fan or the like that blows the air from above the single wafer 1a discharged therefrom.
Is provided. The blower 57, together with the air nozzle 56, gives an appropriate amount of air to the sheet 1a, and therefore the sheet 1a
Will be properly deposited on the pallet 51 placed on the deposition table 58. The stacking table 58 is suspended by a chain 59 or the like so as to be vertically movable, and is lowered as the stacking amount of the single sheets 1a increases. Further, a jogger 61 is provided above the stacking table 58 where the single wafers 1a are discharged from the third endless conveyor belt 15, and the falling single wafers 1a are vibrated to align their edges. It has become. Reference numeral 60 in FIG. 2 denotes a temporary stacking fork, which temporarily receives the single-wafer 1a that protrudes to the front of the third endless conveyor belt 15 and is discharged therefrom when the pallet 51 is replaced, When the exchange of 51 is completed, it functions to transfer the single wafer 1a onto the new pallet 51. After the single wafer 1a is transferred to the pallet 51, the single wafer 1a is retracted below the third endless conveyor belt 15. It has become.

In addition, as shown in FIG. 2, a charge eliminating bar 62 and a charge eliminating air nozzle 63 for removing static electricity are arranged at predetermined positions on the second endless conveyor belt 12. This removes static electricity from the single-wafer product 1a,
It becomes easy to separate from the endless conveyor belt 12. In addition, this air enters as an air layer between the single wafers 1a to remove electricity,
The single sheets 1a are prevented from adhering to each other, and the single sheets are deposited so that their edges are aligned.

Next, a series of operations of the cutting and discharging device will be described. As shown in FIGS. 10 to 14, the rotary cutter 13 cuts the strip 1 while the rotary blade 13a passes over the fixed blade 13b only once during one rotation. At the time of this cutting, as shown in FIG. 10 to FIG. 12, the tip of the belt-shaped material 1 passes through the rotary cutter 13 before entering the cutting state, enters under the second endless conveyor belt 12, and enters the second endless belt. It is sucked to the upstream side of the conveyor belt 12. For this reason, the belt-shaped material 1 includes the second endless conveyor belt 12 and the first endless conveyor belt 11 (see FIG. 2).
It is pulled with moderate force between and. Immediately thereafter, the strip 1 is cut by the rotary cutter 13 as shown in FIG. The second endless conveyor belt 12 runs at a speed slightly higher than that of the first endless conveyor belt 11, so that there is a gap between the rear end of the separated sheet 1a and the cut end of the strip 1. It will be. This makes it possible to prevent the trailing edge of the preceding sheet 1a and the peeling member 14 from colliding with the leading edge of the succeeding sheet 1a.

When the cut sheet 1a is conveyed above the third endless conveying belt 15 by the second endless conveying belt 12 (FIG. 10), the peeling member 14 moves the sheet 1a into the sheet. The rear end portion is peeled off from the second endless conveyor belt 12 against the suction force and pressed onto the third endless conveyor belt 15 (FIG. 11). Since the suction force of the third endless conveyance belt 15 is strong and the suction force of the second endless conveyance belt 12 above the third endless conveyance belt 15 is reduced, the single-wafer 1a is conveyed to the third endless conveyance belt. It quickly falls onto the belt 15 and is adsorbed (FIG. 12). The third endless conveyor belt 15 travels at a lower speed than the second endless conveyor belt 12, and the sheet 1a is discharged onto the pallet 51 (see FIG. 2) at an appropriate speed.

On the third endless conveyor belt 15, the sheet 1a
Since the sheet moves at a low speed, the following sheet 1a arrives above it while the sheet 1a is traveling on the third endless conveyor belt 15 (FIG. 13). And the subsequent single leaf 1
The peeling member 14 peels the rear end of the sheet a from the second endless conveyor belt 12 and presses it against an empty space on the third endless conveyor belt 15 (FIG. 14). On the third endless conveyor belt 15, several sheets 1a are sequentially discharged onto the pallet 51 while always overlapping each other in a scissor shape.

By repeating the discharge of the single wafers 1a as described above, the single wafers 1a are piled up on the pallet 51.

[0030]

According to the first aspect of the present invention, since the belt-like material is conveyed while being adsorbed by the first to third endless conveyor belts, the belt-like material and the sheet separated from it are laterally displaced without fluttering. Can be run without
Disturbance of strips due to cutting is unlikely to occur, and static electricity is also unlikely to occur. Therefore, the sheet can be discharged without causing scratches, print stains, and the like and without causing cutting defects. Further, since the first endless conveyor belt and the second endless conveyor belt are suctioned and cut in a taut state, the strip can be accurately cut. Further, even when the sheet is traveling at a high speed on the second endless conveyor belt, the sheet is pushed onto the third endless conveyor belt by the peeling member, so that the sheet is reliably transferred onto the third endless belt, It can be surely decelerated and then discharged, and the single-wafers can be stacked properly without scattering. Further, since the peeling member hits the rear end portion of the sheet and does not hit the design portion, the sheet is not contaminated by printing upon peeling.

According to the invention of claim 2, a negative pressure is generated between the rotary cutter and the second endless conveyor belt so as to press the belt-like object on the traveling path thereof.
It is possible to properly transfer the tip of the strip to the second endless conveyor belt so that the tip of the strip does not float up from the traveling path immediately after cutting.

According to the third aspect of the present invention, since the belt-shaped material is pressed against the second endless conveyor belt by the brush roller, the belt-shaped material can be elastically pressed against the second endless conveyor belt, and therefore the belt-shaped material can be pressed. It can be accurately adsorbed to the second endless conveyor belt.

According to the fourth aspect of the present invention, since the suction force of each of the second and third endless conveyor belts decreases as the suction force moves toward the downstream side, the second endless conveyor belt of the single-wafer sheet to the third endless conveyor belt is reduced. Can be smoothly transferred to the endless conveyor belt and discharged from the third endless conveyor belt.

According to the invention of claim 5, the peeling member can change the phase with respect to the second endless conveyor belt. Therefore, it is possible to more appropriately transfer the sheet from the second endless conveyor belt to the third endless conveyor belt by appropriately changing the position of contact with the sheet according to the material, traveling speed, etc. of the sheet. Can be

[Brief description of drawings]

FIG. 1 is a side view of a rotary printing press equipped with a cutting and discharging device according to the present invention.

FIG. 2 is a vertical cross-sectional view of a cutting and discharging device according to the present invention.

FIG. 3 is a partially cutaway plan view of a first endless conveyor belt.

FIG. 4 is a sectional view taken along line IV-IV in FIG.

FIG. 5 is a partially cutaway plan view of a second endless conveyor belt.

FIG. 6 is a plan view of a drive unit of a peeling member.

FIG. 7 is a side view of the drive unit of the peeling member.

FIG. 8 is a partially cutaway plan view of a third endless conveyor belt.

FIG. 9 is a sectional view taken along line IX-IX in FIG.

FIG. 10 is a vertical cross-sectional view of the cutting and discharging device showing a state in which the sheet is conveyed onto the third endless conveyor belt by the second endless conveyor belt.

FIG. 11 is a vertical cross-sectional view of the cutting and discharging device showing a state where the sheet is being transferred from the second endless conveyor belt onto the third endless conveyor belt by the peeling member.

FIG. 12 is a vertical cross-sectional view of the cutting and discharging device showing a state after the single-wafers are transferred onto the third endless conveyor belt.

FIG. 13 is a vertical cross-sectional view of the cutting and discharging device showing a state in which a subsequent sheet is conveyed onto the third endless conveyor belt by the second endless conveyor belt.

FIG. 14 is a vertical cross-sectional view of the sheet cutting and discharging device showing a state where the succeeding sheet is being transferred from the second endless conveyor belt onto the third endless conveyor belt by the peeling member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Belt 1a ... Sheet 11 ... 1st endless conveyance belt 12 ... 2nd endless conveyance belt 13 ... Rotary cutter 14 ... Peeling member 15 ... 3rd endless conveyance belt 37 ... 1st ventilation means 38 ... Brush rollers 43, 44 ... Phase changing means

Claims (5)

[Claims] 1. A first endless conveyor belt that conveys a belt-shaped object while sucking it from its upper surface or a lower surface, and a downstream side of the first endless conveyor belt that conveys the belt-shaped object while sucking it from its upper surface. A second endless conveyor belt arranged, and a rotary cutter arranged between both the endless conveyor belts for cutting the belt-like material straddling between the first and second endless conveyor belts to obtain a sheet. , Pulling the rear end portion of the sheet sucked by the second endless transport belt downward from the second endless transport belt, the pulling disposed near the suction release portion of the second endless transport belt The peeling member and the second endless conveyor belt disposed below the suction release portion of the second endless conveyor belt that sucks the sheet separated by the peeling member and travels at a lower speed than the second endless conveyor belt. Includes a third endless conveyor belt A cutting and discharging device characterized in that 2. A first blower means is provided between the rotary cutter and the second endless conveyor belt to generate a negative pressure for pressing the belt-like object on a traveling path thereof. The cutting and discharging device according to claim 1. 3. The brush roller for pressing the strip-shaped material against the second endless conveyor belt is provided in the vicinity of the suction start portion of the second endless conveyor belt. Cutting and discharging device. 4. The cutting and ejecting device according to claim 1, wherein the second and third endless conveyor belts are adjusted so that the suction force is reduced toward the downstream side. 5. The cutting and ejecting apparatus according to claim 1, wherein the peeling member includes a phase changing unit capable of changing a phase with respect to the second endless conveyor belt.