JP4771918B2 - Continuous paper cutting device - Google Patents

Description

  The present invention relates to a continuous sheet cutting device that cuts a continuous sheet on which a sewing line for forming a single sheet is formed using the sewing line.

  In recent years, it has become common practice to form a single-leaf form or the like on a continuous sheet of paper, and after performing predetermined printing for each section of the machine line, cutting with the sewing line to form a single-leaf. It has been broken. When a single-leaf form cut by this type of continuous paper cutting device is processed into a single leaf and then subjected to post-processing such as predetermined sorting, it is desirable that the discharge speed from the device is low.

  Conventionally, in a continuous sheet cutting apparatus, a basic method for making a single sheet from a continuous sheet is disclosed in, for example, the following patent documents. That is, the apparatus includes a pair of upper and lower infeed rollers for transferring continuous paper having sewing lines provided at predetermined intervals, and a pair of upper and lower high speed rollers that rotate at a higher speed than the infeed roller. The cutter is provided with a cutter for cutting with a sewing machine line between the rollers and is cut when the sewing machine line is transferred to the cutter part due to a difference in rotational speed. In such a cutting method, a fix method and a traverse method are further known.

Japanese Patent No. 2849644

  FIG. 5 is an explanatory diagram of the fix method in the conventional continuous paper cutting device, and FIG. 6 is an explanatory diagram of the traverse method in the conventional continuous paper cutting device. The continuous paper cutting apparatus shown in FIG. 5 includes a pair of upper and lower infeed rollers 101 and a pair of upper and lower high speed rollers 102, and a cutter 103 and a paper guide unit 104 that provide a trigger for cutting between them. Thus, the upper roller 101A of the infeed roller 101 and the upper roller 102A of the high speed roller 102 are movable up and down.

  That is, as shown in FIG. 5A, before the continuous paper 105 is transferred by a predetermined transfer means and the leading edge reaches the high speed roller 102, the upper roller 101A of the infeed roller 101 and the upper speed roller 102 are The roller 102A is positioned above. At this time, each roller of the in-feed roller 101 is rotated at, for example, the rotational speed V1, and each roller of the high-speed roller 102 is rotated at V2, which is faster than the rotational speed V1.

  Then, as shown in FIG. 5B, the leading edge of the continuous paper 105 reaches the high speed roller 102, and the upper roller 101A of the infeed roller 101 and the upper roller 102A of the high speed roller 102 are lowered and lowered. When contacted with the roller, tension is applied to the continuous paper 105 at a rotational speed difference, and the machine line is cut by the tension at the position of the cutter 103 and discharged as a single sheet from the high speed roller 102 at a speed V2. It is what is done.

  In the traverse method shown in FIG. 6, each upper roller does not move up and down, but always rotates in contact with the lower roller (the infeed roller 101 is V1, the high speed roller 102 is V2, and V1 < V2), and the distance from the cutting position of the cutter 103 to the contact position of the high speed roller 102 is set to a length for cutting the paper. When the leading edge of the continuous paper 105 transferred thereby reaches the high speed roller 102, tension is applied due to the difference in rotational speed between the rollers, and the sewing line of the continuous paper 105 becomes the position of the cutter 103. And is discharged as a single sheet from the high speed roller 102 at a speed V2.

  However, even in each of the above systems, the single sheet discharged from the high speed roller 102 is high speed (speed V2), and there is a carry-in guide belt downstream from the high speed roller 102 as in the above patent document. Although there is not much problem, when a post-processing machine such as a sorting device is provided, the processing must be performed at a speed higher than the discharge speed V2, which causes a single sheet of paper to be violated. There is a problem that processing becomes unstable.

  Accordingly, the present invention has been made in view of the above problems, and an object of the present invention is to provide a continuous paper cutting apparatus that can cut a continuous paper into single sheets and enable stable processing by post-processing.

In order to solve the above-described problems, the present invention provides a continuous sheet cutting device in which sewing lines are formed at predetermined intervals on a continuous sheet conveyed by a predetermined conveying unit, and a single sheet is formed by cutting the sewing line. The continuous paper is composed of detection means for detecting a predetermined portion of the continuous paper and a pair of upper and lower rollers to determine the timing for cutting with the sewing machine line on the continuous paper to be conveyed. A second roller for applying a tension to the continuous paper when the leading edge of the continuous paper that has been transferred from the first roller part arrives. A cutting assisting means disposed between the first roller portion and the first roller portion and the second roller portion for giving a trigger for cutting when the sewing machine line arrives, and the first roller portion and the second roller The rotation speed of the second roller portion is controlled at the timing when the sewing line on the continuous paper reaches the cutting assisting means based on the detection signal from the detection means. The sheet is cut at a rotation speed V2 that is faster than the rotation speed V1 by a predetermined time t , and after the cutting, the rotation speed of the second roller section is made the same as the rotation speed V1 of the first roller section. And the second roller portion is arranged at a minimum distance L = V1 × t from the front end portion of the cutting assisting means .

According to the present invention, the cutting assisting means is disposed between the first roller part and the second roller part, and the first timing is when the sewing machine line reaches the cutting assisting means based on the detection signal from the detecting means. The rotational speed of the two roller part is temporarily made faster than the rotational speed of the first roller part, and the cutting is performed. After the cutting, the rotational speed of the second roller part is made the same as the rotational speed of the first roller part. The paper is discharged as paper , and the second roller portion is arranged at a minimum distance L = V1 × t from the front end portion of the cutting assisting means, so that the discharge speed of the single paper is slowed down while reducing the size. Therefore, it is possible to prevent a rampage or the like in the post-processing for the discharged single-sheet paper, and to perform stable post-processing.

Hereinafter, the best embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a configuration explanatory diagram of a form production system to which a continuous sheet cutting apparatus according to the present invention is applied. FIG. 1A is a schematic configuration diagram of a form production system, and FIG. 1B is an explanatory diagram of continuous paper used. In FIG. 1A, in the form preparation system, a transport device (for example, a transport tractor) 12 is disposed at the subsequent stage output from the printing apparatus 11, and the continuous sheet cutting device 13 according to the present invention is disposed at the subsequent stage. . In the subsequent stage of the continuous paper cutting device 13, for example, a sorting device 14 as a post-processing device is arranged, and a continuous paper 15 is set in the printing device 11.

  As shown in FIG. 1B, the continuous paper 15 has marginal portions 15A and 15B formed on both sides in the width direction, and a predetermined number of conveying holes are formed in the marginal portions 15A and 15B. This transport hole is engaged and transported by a transport device (transport tractor) 12. On the continuous paper 15, sewing lines 15C are formed at predetermined intervals including the marginal portions 15A and 15B. A portion divided by the sewing line 15C will later become a single sheet 16.

  As will be described in detail with reference to FIG. 2, the continuous sheet cutting device 13 includes a first roller unit 21 and a second roller unit 22, and a sensor 23 serving as a detection unit is disposed in front of the first roller unit 21. A cutter 24 serving as a cutting assisting unit is disposed between the first roller unit 21 and the second roller unit 22.

  That is, in the form preparation system, variable information such as detailed information for a plurality of customers is printed on a region of the continuous sheet 15 that is a single sheet in the printing apparatus 11 such as an ink jet printer. The continuous paper 15 output from the paper is transported to the continuous paper cutting device 13 by the transport device (transport tractor) 12. The continuous paper cutting device 13 cuts the continuous paper 15 for each sewing line 15C to form a single-sheet paper 16 and discharges it to the sorting device 14. The sorting device 14 performs, for example, stacking for each customer. is there.

  FIG. 2 shows an enlarged configuration diagram of the continuous sheet cutting apparatus according to the present invention. In FIG. 2, the continuous sheet cutting device 13 includes a first roller unit 21 composed of a pair of upper and lower lower rollers 21 </ b> A and an upper roller 21 </ b> B, and the continuous sheet conveyed from the conveying device 12 is transferred to the second roller unit 22 at the subsequent stage. Roll transfer. A pulley 31 is provided on the rotating shaft of the lower roller 21 </ b> A, and the rotating force is transmitted to the rotating shaft (rotating pulley) of the first servo motor 32 by the rotating belt 33.

  The second roller portion 22 includes a pair of upper and lower lower rollers 22A and upper rollers 22B. When the leading edge of the continuous paper 15 transferred from the first roller portion 21 arrives, tension is applied to the continuous paper 15. Is granted. A pulley 34 is provided on the rotating shaft of the lower roller 22 </ b> A, and a rotating force is transmitted to the rotating shaft (rotating pulley) of the second servomotor 35 by the rotating belt 36. The rotation speeds of the first servo motor 32 and the second servo motor 35 that rotate the first roller portion 21 and the second roller portion 22 are controlled by a controller that is control means shown in FIG.

  A sensor 23 serving as a detection unit is disposed in front of the first roller portion 21. The sensor 23 detects the initial leading edge position of the continuous paper 15 conveyed from the printing apparatus 11 and detects the rear end (out of paper) of the continuous paper 15. The interval between the sewing lines 15 </ b> C formed on the continuous paper 15 and the conveyance speed by the conveyance device 12 are known in advance, and by detecting the tip position with the sensor 23, the sewing line 15 </ b> C is placed at the tip of the cutter 24 or The time sequentially reaching immediately before the tip is recognized, and the timing of the rotation control of the second roller 22 is determined. In addition, as a sensor for measuring the timing of the rotation control of the second roller unit 22, it is provided between the position of a cutter 24, which will be described later, and the second roller unit 22, and sequentially detects the leading edge of the continuous paper 15, and the detection signal is The second roller portion 22 may be controlled to rotate after a predetermined time from the input.

  Further, a cutter 24 is disposed between the first roller portion 21 and the second roller portion 22 and is a cutting assisting means for giving a trigger for cutting when the sewing machine line arrives. The front end of the cutter 24 (the portion that comes into contact with the continuous paper 15) is positioned below the horizontal paper holding contact portion between the first roller portion 21 and the second roller portion 22. When the leading edge of the continuous paper 15 is held in contact with the second roller portion 22, it plays a role of applying a tension suitable for cutting.

  The cutter 24 is integrally formed with an extending portion 24A in the direction of the first roller portion 21 from the cutting contact. The extending portion 24A serves as a guide for guiding the leading end portion downward when the leading end portion of the continuous paper 15 is transferred from the first roller portion 21. A guide portion 37 is disposed below the cutter 24. The guide portion 37 serves to guide the leading end of the continuous sheet 15 from the leading end portion that is the sheet contacting portion of the cutter 24 to the second roller portion 22.

  Here, FIG. 3 shows an explanatory diagram of the rotational speed control of the continuous sheet cutting apparatus of FIG. FIG. 3A is a block diagram of an example of a controller, and FIG. 3B controls the rotational speeds of the second servo motor first roller portion 21 and the second roller portion 22. Based on the above, the rotation speed of the second roller portion 22 is temporarily made higher than the rotation speed of the first roller portion 21 at the timing when the sewing line 15C on the continuous paper 15 reaches the cutter 24, and the cutting is performed. After that, the rotation speed of the second roller section 22 is made equal to the rotation speed of the first roller section 21 and discharged as a single-sheet paper 16, and at least a first servo motor control section 42 and a second servo motor control section 43. Here, “when the sewing line 15C on the continuous paper 15 reaches the cutter 24” means that the sewing line 15C is transferred from the first roller portion 21 (the rotational speed V1 of the first servo motor 32) to the tip of the cutter 24. Or when reaching just before the tip. In addition, when applying to the form preparation system shown in FIG. 1, you may include the conveyance control part which controls the said conveying apparatus 11 in this controller 41. FIG.

  The first servo motor control unit 42 is for controlling the rotational speed of the first servo motor 32, and is always controlled at the rotational speed V1 here. The second servo motor control unit 43 controls the rotation speed of the second servo motor 35 at predetermined timings based on a detection signal from the detection sensor 23 that detects the initial leading edge position of the continuous paper 15. In this case, the control is performed in two stages: a rotational speed V1 that is the same as the rotational speed of the first servo motor, and a rotational speed V2 that is faster than the rotational speed V1 (for example, 1.5 to 2 times V1). That is, by controlling the rotational speeds of the first servo motor 32 and the second servo motor 35, the rotational speeds of the first roller unit 21 and the second roller unit 22 rotated by the rotary belts 33 and 36 are controlled. It is what is done.

  The second servo motor control unit 43 temporarily makes the rotational speed of the second servo motor 35 temporarily higher than the rotational speed V 1 of the first servo motor 32 at the timing when the sewing line 15C of the continuous paper 15 reaches the cutter 24. V2 is cut, and after cutting, the rotation speed V2 of the second servomotor 35 is made equal to the rotation speed V1 of the first servomotor 32, and the single-sheet paper 16 is discharged from the second roller unit 22. It is.

  Here, as shown in FIG. 3B, the control of the rotation speed for the second servomotor 35 based on the detection signal from the detection sensor 23 that detects the first leading edge position of the continuous paper 15 is performed. The rotation speed is controlled at the same rotation speed V1 as that of the first servo motor 32 until a predetermined time T1 from when the detection signal for detecting the first leading edge of the continuous paper 15 is input from the sensor 23, for a predetermined time. When T1 is reached, the rotation speed of the second servomotor 35 is controlled to V2 that is faster than the rotation speed V1 of the first servomotor 32 for a predetermined time t. The predetermined time T1 is a time when the first sewing line 15C of the continuous paper 15 reaches the front end of the cutter 24 or just before the front end by the transfer from the first roller portion 21 (the rotational speed V1 of the first servo motor 32). In addition, since the distance between the first roller portion 21 and the tip position of the cutter 24 and the transfer speed are known, it can be easily set.

  Therefore, the cutter 24 is cut by the sewing machine line 15C by changing the rotation speed of the second servomotor 35 from V1 to V2. That is, the second servomotor 35 is cut within a time t during which the second servomotor 35 is rotated at a higher speed than the first servomotor 32. After the cutting, the rotation speed of the second servomotor 35 is the same as the rotation speed V1 of the first servomotor 32. With this control, the cut single-sheet paper 16 is discharged from the second roller unit 22 at the same speed as the rotation speed V1 of the first servomotor 32.

  Then, at a predetermined time interval T2 from the first high rotation control to the second servo motor 35, the next leading end of the continuous paper 15 reaches the second roller portion 22, and the next sewing line 15C is at the leading end of the cutter 24. Alternatively, it reaches the point just before the tip, and cutting is performed by repeating the control to temporarily increase the rotation speed of the second servomotor 35 from V1 to V2. As the arrangement position of the second roller portion 22, the distance L from the front end portion of the cutter 24 can be the minimum L = V1 × t, and the above-described traverse method (at least the length of the single-sheet paper is required). A further reduction in size can be achieved.

  FIG. 4 is an explanatory diagram of a cutting state in the continuous sheet cutting apparatus of FIG. In FIG. 4A, first, the first roller portion 21 (first servo motor 32) and the second roller portion 22 (second servo motor 35) are both controlled at the rotational speed V1. The continuous paper 15 that has been transported is rolled by the first roller unit 21 at the rotational speed V1. The leading edge of the continuous paper 15 that is roll-transferred by the first roller portion 21 is regulated by the extending portion 24A of the cutter 24 and guided to the leading end portion of the cutter 24, and further abuts on the guide portion 37 to contact the guide portion. 37 along the second roller portion 22 side.

  Subsequently, as shown in FIG. 4B, the leading end portion of the continuous paper 15 that is roll-transferred by the first roller unit 21 based on the detection signal from the sensor 23 that detects the first leading edge position of the continuous paper 15. Reaches the second roller portion 22, and the rotation speed of the second roller portion 22 is rotated by a predetermined time t at the timing when the next sewing line 15C reaches the tip of the cutter 24 or just before the tip. By controlling to V2 faster than the speed V1, the cutter 24 is cut by the sewing machine line 15C to form a single sheet 16.

  Subsequently, as shown in FIG. 4C, the rotational speed of the second roll unit 22 is controlled to be the same as the rotational speed V1 of the first roll unit 21 after the cutting, so that the cut single-sheet paper 16 is cut. The second roller portion 22 is discharged at the same speed as the rotation speed V1 of the first roll portion 21. Then, FIGS. 4A to 4C are repeated.

  In this way, the continuous sheet 15 can be cut reliably by the speed difference with the sewing machine line 15C, and the discharge speed of the single sheet 16 can be made slower than the second roller portion 22. In the post-processing such as sorting with respect to 16, it is possible to prevent rampage and the like and to perform stable post-processing. It should be noted that the present invention can be applied to both the above-described fix method and traverse method.

  The continuous paper cutting device of the present invention can be used in the processing machine industry for cutting continuous paper into single-leaf paper by a sewing line.

1 is a configuration explanatory diagram of a form production system to which a continuous paper cutting device according to the present invention is applied. FIG. It is an expanded block diagram of the continuous paper cutting apparatus which concerns on this invention. It is explanatory drawing of the rotational speed control of the continuous paper cutting apparatus of FIG. It is explanatory drawing of the cutting state in the continuous paper cutting apparatus of FIG. It is explanatory drawing of the fix system in the conventional continuous paper cutting apparatus. It is explanatory drawing of the traverse system in the conventional continuous paper cutting apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Printing apparatus 12 Conveyance apparatus 13 Continuous sheet cutting apparatus 14 Sorting apparatus 15 Continuous sheet 16 Single sheet 21 First roller section 22 Second roller section 23 Sensor 24 Cutter 33 First servo motor 34 Second servo motor 41 Controller

Claims (1)

A continuous sheet cutting device in which a continuous line is formed on a continuous sheet conveyed by a predetermined conveying unit at a predetermined interval, and a single sheet is formed by cutting the sewing line.
Detecting means for detecting a predetermined portion of the continuous paper in order to determine a timing for cutting with a sewing line on the continuous paper conveyed;
A first roller unit composed of a pair of upper and lower rollers, which roll-transfers the continuous paper conveyed;
A second roller portion that is composed of a pair of upper and lower rollers and applies tension to the continuous paper when the leading edge of the continuous paper transferred from the first roller portion arrives;
A cutting assisting means that is arranged between the first roller part and the second roller part, and gives a trigger for cutting when the sewing machine line arrives;
The rotation speed of the first roller unit and the second roller unit is controlled, and the second timing is determined when the sewing line on the continuous paper reaches the cutting assisting unit based on a detection signal from the detection unit. Cutting is performed by setting the rotation speed of the roller section to a rotation speed V2 that is faster than the rotation speed V1 of the first roller section by a predetermined time t , and after the cutting, the rotation speed of the second roller section is set to the rotation speed of the first roller section. Control means for discharging the same as V1 as single-sheet paper ,
The continuous sheet cutting device, wherein the second roller portion is disposed at a minimum distance L = V1 × t from a tip portion of the cutting assisting means .

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