JPH0825290A - Cutting method and device for continuous sheet - Google Patents

Abstract

PURPOSE:To accurately feed unit sheets synchronusly with the processing actions of a paper processor and cope with the high-speed processing of the sheet processor. CONSTITUTION:A continuous sheet 4 having shift sections provided with shifting feed holes on both sides in the width direction is extracted to extracting rollers 6a, 6b, 6c from a feeder 5, it is continuously shifted by tractors 8, 9 via the feed holes, and it is cut by a rotary cutter constituted of a rotary cylinder 12 having cutting edges 11a, 11b and a receiving barrel 13 to the unit sheet length except for the shift sections in the direction perpendicular to the shifting direction. The continuous sheet 4 continued by the remaining shift sections is shifted by a tractor 15 via the feed holes, the shift sections are slit by a slitter 16 in the shifting direction of the continuous sheet 4 to correspond to the unit sheet width, and the continuous sheet 4 is divided into unit sheets.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for cutting continuous sheets into unit sheets in order to supply them to an appropriate sheet processing apparatus, and more particularly to a feed hole for transfer provided on both sides in the width direction. The present invention relates to a method and an apparatus for cutting a continuous sheet having a transport section while transporting the sheet.

[0002]

2. Description of the Related Art A sheet processing apparatus, for example, an enclosing / sealing apparatus,
It is common to carry out a series of processing operations while intermittently transferring the paper. Therefore, in the conventional continuous paper cutting device, a cutting mechanism that intermittently transports the continuous paper and vertically moves the cutting blade in the stopped state to cut is used. The unit sheets are intermittently supplied so as to be synchronized with the processing operation of the sheet processing apparatus at the same timing.

[0003]

Therefore, in the prior art, since the cutting blade having a large mechanical load is moved up and down, the cutting time, that is, the up and down operation time is long, and there is a limit to the speeding up of the cutting process. Therefore, there is an inconvenience that the sheet processing apparatus cannot handle high-speed processing. On the other hand, if a rotary cutter is used instead of the vertically moving cutting blade, continuous paper is cut while being continuously transported, so the cutting process can be speeded up, but the rotary cutter intermittently cuts the paper. Is extremely difficult to perform because it has a large inertia and precise stop control is difficult. In this way, in the rotary cutter where intermittent cutting operation is difficult,
In order to supply the cut unit sheets in synchronization with the processing operation of the sheet processing apparatus, the speed of the continuous processing operation must be controlled to match the timing of the intermittent processing operation.
The disadvantage is that it is extremely difficult. It is an object of the present invention to provide a continuous paper cutting method and apparatus that eliminates such inconvenience.

[0004]

In order to achieve the above-mentioned object, a continuous paper cutting method according to the present invention is a continuous paper having a transfer portion having transfer holes provided on both sides in the width direction.
While continuously transferring using the feed hole, the transfer part is cut in a direction orthogonal to the transfer direction, and continuous paper is continuously transferred by the remaining transfer part using the feed hole. While transporting, the transport unit is slit in the transport direction of the continuous sheet to divide the continuous sheet into unit sheets.

Further, in this cutting method, there is provided a feeding means for feeding a continuous paper having a feeding portion provided with feeding holes for transportation on both sides in the width direction, and a feeding hole for feeding the continuous paper fed from the feeding means. The first transfer means for continuously transferring the continuous paper using the first transfer means and the continuous paper transferred by the first transfer means are moved by the rotary cutter including the rotary cylinder having the cutting blade extending in the axial direction and the receiving cylinder. A cutter unit that cuts in the direction orthogonal to the transfer direction with the transfer unit left, a second transfer unit that transfers the continuous paper cut with the transfer unit left using the feed holes, and the second transfer unit. The cutting device is provided with a slitter means for slitting the continuous paper, which has been transferred by the remaining transfer section, into unit sheets by slitting the transfer section in the transfer direction.

Further, it is preferable to provide a buffer means between the cutter means and the slitter means in the above-mentioned cutting device.

[0007]

The continuous paper is continuously transferred, and the continuous cutter is cut into unit paper lengths while leaving the transfer section by the rotary cutter, and the continuous paper is transferred using the remaining feed holes. Since it is slit and divided into unit paper,
It is possible to supply the unit sheet to the sheet processing apparatus continuously or intermittently, and even if the slit operation is performed intermittently, the inertia of the slitter means and the mechanical load are small, so there is no problem.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings. Here, FIG. 1 is a schematic side view showing the entire cutting device, and FIG. 2 is a schematic plan view showing a processing state of continuous paper.

First, the structure of the cutting device will be described. As shown in FIG. 1, the cutting device 1 has transfer portions 3a and 3b provided with transfer feed holes 2a and 2b on both sides in the width direction.
A continuous sheet 4 (see FIG. 2) having a sheet feeding device 5 is provided. This feeding device 5 supports the roll-shaped continuous paper 4 so that it can be pulled out freely, and pull-out rollers 6a, 6b, 6c connected to appropriate drive sources, respectively.
The continuous paper 4 is pulled out and supplied by the rotation drive of the. Further, as can be understood from FIG. 2, appropriate transmission information 7 is printed on the continuous paper 4 in advance.

The continuous paper 4 supplied from the supply device 5 is
The feed holes 2a, 2b are tractors 8, which are first transfer means.
It is configured to be engaged with tractor pins 8a and 9a of 9 and to be continuously transferred by these tractors 8 and 9. A buffer space portion 10 is provided between the supply device 5 and the tractor 8, and the continuous paper 4 forms a loop in the buffer space portion 10, and the pull-out roller 6a of the supply device 5 is formed by this loop amount. , 6b, 6c to control the amount of pulling out the continuous paper 4. That is, when the loop amount exceeds a predetermined amount, the pull-out rollers 6a, 6b, 6c are stopped and the continuous paper 4
If the loop amount falls below a predetermined amount while the pulling out of the continuous paper 4 is stopped, the rotation speed of each of the pulling rollers 6a, 6b, 6c is increased to increase the pulling amount of the continuous paper 4. In this way, by increasing or decreasing the pull-out amount of the continuous paper 4, it is possible to cope with the change in the transfer amount by the tractor 8.

Cutter means is provided between each of the tractors 8 and 9, and the cutter means holds the continuous paper 4 in the direction perpendicular to the transfer direction, leaving the ends of the transfer portions 3a and 3b, and the top and bottom of the unit paper. Unit paper length d, which is the length in the direction (see FIG. 2)
Axially extending cutting blades 11a, 11 for cutting into
It is composed of a rotary cutter including a rotary cylinder 12 having b and a receiving body 13. The rotating cylinder 12 is continuously rotated, and its rotation amount is controlled according to the transfer amount of the continuous paper 4 by the tractors 8 and 9,
The interval between the cut S (see FIG. 2) positions, which are the cutting positions of the continuous paper 4 by the cutting blades 11a and 11b, is set so as to correspond to the unit paper length d. The length of the cut S is set to be slightly longer than the unit sheet width w (see FIG. 2), and is determined by the length of the cutting blades 11a and 11b.

Following the tractor 9, a tractor 15 as a second transfer means is provided via a buffer space section 14 as a buffer means, and the continuous paper 4 cut by a rotary cutter leaving the transfer sections 3a and 3b is fed. The holes 2a and 2b are engaged with the tractor pin 15a so that the continuous paper 4 is intermittently transferred. The intermittent transfer operation by the tractor 15 is synchronized with the intermittent signal from the sheet processing apparatus so as to be synchronized with the intermittent processing operation of the sheet processing apparatus such as the enclosing and sealing apparatus (not shown) connected to the cutting apparatus 1. It is controlled to receive and drive.

Then, the transfer amount of the continuous paper 4 by the tractors 8 and 9 and the cutting speed of the rotary cutter are controlled by the loop amount of the continuous paper 4 formed in the buffer space portion 14. When the amount exceeds the predetermined amount, the rotational speeds of the rotary cylinder 12 and the receiving cylinder 13 are gradually and gradually stopped to stop, while when the loop amount falls below the predetermined amount,
Rotating cylinder 1 until the loop amount reaches a predetermined amount
2 and the rotational speed of the receiving cylinder 13 are gradually increased. By providing the buffer space portion 14 in this way, the difference between the transfer amount of the continuous paper 4 by the tractors 8 and 9 and the transfer amount of the tractor 15 can be adjusted, and fluctuations in the transfer speed by the tractors 8 and 9 can be adjusted. Can be performed gently, the fluctuation of the rotation speed of the rotary cylinder 12 becomes gentle, and the speed control is easy.

Further, following the tractor 15, there is provided a slitter 16 (only one is shown) in which a pair of upper and lower slitter blades, which are slitter means, are arranged in pairs in the width direction of the continuous paper 4. By the slitter 16, the continuous paper 4 that remains in the remaining transfer portions 3a and 3b is made to intersect both ends of the cut S at the position corresponding to the unit paper width w during the intermittent transfer operation by the tractor 15. The transfer parts 3a and 3b are slit in the transfer direction and divided into unit sheets 17 (see FIG. 2).

Next, the cutting operation of the continuous paper 4 using the above-mentioned cutting device 1 will be described. First, the transfer section 3 having transfer holes 2a and 2b for transfer on both sides in the width direction.
The roll-shaped continuous paper 4 having a and 3b is pulled out from the feeding device 5 through the pull-out rollers 6a, 6b and 6c, and the feed holes 2a and 2b are respectively formed in a state where a loop is formed in the buffer space portion 10. The tractor pins 8a and 9a of the tractors 8 and 9 are engaged. Further, the continuous paper 4 is pulled out, and the feed holes 2a and 2b are engaged with the tractor pin 15a of the tractor 15 in a state where a loop is formed in the buffer space portion 14.

When the setting of the continuous paper 4 in the cutting device 1 is completed in this way, each tractor 8, 9, 15
The rotary cylinder 12 is continuously driven at a rotational speed corresponding to the transfer amount of each of the tractors 8 and 9, and the slitter 16 is intermittently moved according to the intermittent transfer operation of the tractor 15. To drive.

As a result, the continuous paper 4 is pulled out from the feeding device 5 and continuously transferred by the tractors 8 and 9, and the cutting blades 11a and 11b provided on the rotary cylinder 12 are provided.
When the continuous paper 4 reaches a predetermined position, the continuous paper 4 is cut for each unit paper length d, leaving the transfer portions 3a and 3b in the direction orthogonal to the transfer direction, and the cut S is formed (see FIG. 2). Then, the continuous paper 4 which is continuous by the remaining transfer portions 3a and 3b is further transferred, forms a loop in the buffer space portion 14, and the continuous transfer amount by each tractor 8 and 9 and the intermittent by the tractor 15. In addition to enabling the adjustment of various transfer amounts, the transfer operation of the tractor 15 in response to the synchronization signal of the sheet processing device (not shown) causes intermittent transfer. By intermittently driving the slitter 16 in accordance with this intermittent transfer, the transfer sections 3a and 3b remaining in the transfer direction of the continuous paper 4 are slit at a position corresponding to the unit paper width w, and unit paper The sheet is divided into 17 sheets (see FIG. 2), and the unit sheet 17 is supplied in synchronization with the processing operation of the sheet processing apparatus.

The present invention is not limited to the above-described embodiment, and for example, either one of the tractors 8 and 9 as the first transfer means is sufficient, and two tractors 8 and 9 are always required. Not a thing. Also, continuous paper 4
The buffer spaces 10 and 14 forming a loop are not necessarily provided, and in particular, the buffer space 10 between the supply device 5 and the tractor 8 may be omitted. Further, the continuous paper 4 in the supply device 5 is pulled out from a roll-wound state, pulled out from a zigzag folded state, or discharged from the printer by using a printer that prints the transmission information 7 as a supply unit. 4 may be directly supplied. Furthermore, the length of the cut S is set by adjusting the lengths of the cutting blades 11a and 11b, and the receiving barrel 13 that receives these cutting blades 11a and 11b.
When the cutting blade receiving portion made of synthetic resin is provided on the peripheral surface of the receiving cylinder 13, the length of the cutting blade receiving portion (the axial direction of the receiving cylinder 13 is adjusted). The length) can be adjusted.

[0019]

As is apparent from the above description,
According to the present invention, since the continuous paper is transferred using the feed hole, the transfer operation can be easily controlled, and along with this, the cutting operation of the unit paper length at an accurate position becomes possible. There is an effect that it is possible to accurately perform the unit sheet supply operation in synchronization with the processing operation of the sheet processing apparatus, and it is also possible to cope with high-speed processing of the sheet processing apparatus.

[Brief description of drawings]

FIG. 1 is a schematic side view showing an entire cutting device.

FIG. 2 is a schematic plan view showing a processing state of continuous paper.

[Explanation of symbols]

 1 Paper Cutting Device 2a, 2b Feeding Holes 3a, 3b Transfer Part 4 Continuous Paper 5 Feeding Device 8, 9, 15 Tractor 8a, 9a, 15a Tractor Pins 10, 14 Buffer Space Part 11a, 11b Cutting Blade 12 Rotating Cylinder 13 Receiving Body 16 slitter 17 unit paper

Claims (3)

[Claims] 1. A continuous sheet having a transfer section having transfer holes provided on both sides in the width direction is continuously transferred using the transfer holes while being transferred in a direction orthogonal to the transfer direction. The continuous sheet is cut by leaving the remaining portion, and while the continuous sheet is transferred by the remaining transfer section using the feed hole, the continuous sheet is slit in the transfer direction of the continuous sheet to form the continuous sheet as a unit sheet. A method for cutting continuous paper, which is characterized in that it is divided into pieces. 2. A feeding means for feeding a continuous sheet having a feeding portion provided with feeding holes for feeding on both sides in the width direction, and a continuous sheet fed from the feeding means continuously using the feeding holes. A direction perpendicular to the transfer direction of the continuous paper by the first transfer means for transferring and the continuous paper transferred by the first transfer means by the rotary cutter including the rotary cylinder having the cutting blade extending in the axial direction and the receiving cylinder. Cutter means for cutting with a transfer section left, a second transfer means for transferring the continuous paper cut with the transfer section left by using its feed hole, and a residue transferred by the second transfer means. A continuous paper cutting device, comprising: a slitter means for slitting the continuous paper in the transfer direction by the transfer section to divide the transfer section into unit sheets. 3. The continuous sheet cutting device according to claim 2, further comprising buffer means provided between the cutter means and the slitter means.