JPH0464576A - Paper folding machine - Google Patents

Abstract

PURPOSE:To further optimize the automatic operation of a continuous automatic paper folding machine by providing a position setting means for the stopper position of a folding plate and a discharge roller for discharging a folded sheet, on the basis of the information from a folding form designating means and a sheet size measuring means. CONSTITUTION:When an operation means is set to size read mode, a feed roller 59, carrying rollers 61, 62 and a timing roller 71 are driven, and a sheet P is carried to the timing roller 71. The passing time from the top end to terminal of the sheet P is measured by a sensor 78 provided on an outlet, and the result is inputted to a position setting means as the feed directional size of the sheet. The position setting means contains an arithmetic circuit, which determines the stopper position of a folding plate 11 on the basis of the information from a folding form designating means and sheet size information inputted thereto. The positional information of a stopper 13 is outputted from the arithmetic circuit, and the stopper position of the folding plate 11 and the position of a discharge roller 97 are automatically set by the driving member of the position setting means.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an apparatus for automatically and continuously folding sheets of paper of various sizes one by one according to a specified fold shape. be.

[Prior Art] In conventional continuous automatic paper folding machines, the paper size and fold shape to be used are input by the operator, and the position of the stopper on the folding plate is set according to this input signal, and the folding process is performed. The paper was then ejected by a conveyor belt.

There are some devices in which the paper size can be input using several detection members fixed to the paper feed tray, but in any case, the sizes that can be selected are JIS standard A4, B4. It was only a very limited and staged version of the standard size like B5.

[Problems to be Solved by the Invention] However, there are other irregular paper sizes, and even if they are JIS standard sizes, they cannot always be easily identified by the user.

SUMMARY OF THE INVENTION An object of the present invention is to further optimize the automatic operation of a continuous automatic paper folding machine by providing automatic paper size reading means.

[Means for solving the problem] In order to achieve this object, a paper feed of a paper folding machine is provided, which is equipped with a folding plate having a stopper as a means for folding the paper, and a folding shape specifying means for specifying the folding shape of the paper. A measuring means consisting of a timing roller and a means for detecting the passage of the paper, which measures the size of the paper to be folded in the feeding direction in advance, and its operation means are provided on the side, and information from the fold shape specifying means and the paper size measuring means is provided. Based on this, a position setting means is provided for setting the position of the brim of the folding plate and the position of the paper discharge rollers for discharging the folded sheets onto the paper discharge plate in an aligned state.

[Function 1] This type of paper folding machine changes the folded shape at the position of the fold, and since the position of the fold is uniquely determined by the length of the paper in the feeding direction, the position of the stopper of the folding plate is It is considered to be a function of

Therefore, first, after specifying the fold shape of the paper using the fold shape specifying means, when one sheet of paper is set on the paper feed side and the operation means is set to the size reading mode, the paper feed roller, conveyance roller, and timing roller are driven. The paper is then conveyed to the timing roller. A sensor provided at the exit of the timing roller measures the passing time of the paper from the leading edge to the trailing edge, and the result is input to the position setting means as the size of the paper in the feeding direction.

The position setting means includes an arithmetic circuit, and the stopper position of the folding plate is determined based on the information inputted to the calculation circuit from the fold designating means and the information from the paper size measuring means. This stopper position information is output from the arithmetic circuit,
The stopper position of the folding plate and the position of the sheet discharge roller are automatically set by the driving member of the position setting means.

The procedures for the fold designating means and the size reading mode operating means may be reversed.

``Embodiments'' Preferred embodiments of the present invention will be explained based on the drawings.

In FIG. 1, reference numeral 5] is a paper feed plate, on which paper P to be folded is placed. Paper P is paper width setting guide plate 5
3, the sides are aligned, and the sheets are sent one by one to a pair of transport rollers 61 and 62 via a guide plate 55 by a separating plate 57 and a paper feed roller 59. The upper side of the conveying roller pair is a drive roller 6], and the lower side is a driven roller 62. The driven roller 62 is used as a fulcrum by a spring-biased pressure lever 63 in order to flexibly convey paper ranging from thick to thin paper. It is supported by 64. 65 is an upper guide plate, 66 is a lower guide plate, and the paper P is moved between the timing roller 7] and the kite roller 7.
I will guide you during 3. A sensor 78 is provided at the exit of the timing roller 71 to detect the start and end of the paper P, and when a command from the operation panel 1l-0 (see Fig. 3) is in the size reading mode, a sensor 78 is received from the transmitter 79. The time during which the signal is interrupted by the passage of paper P is measured.

Since the timing roller 71 is rotating at a predetermined constant speed, this measured time corresponds to the length of the paper P. Also, the moment the leading edge of the paper P passes the sensor 78, the gate plate 75 rotates counterclockwise in the figure (in the direction of the six arrows).
Paper P is ejected upward.

First folding plate 10, second folding plate 30 and folding roller 81
．． ．． A folding device is constituted by 83.85.87. Since the structures of the first folding plate 10 and the second folding plate 30 are completely the same, the same reference numerals are used for common parts in the drawings, and a part of the first folding plate 1o is omitted. Among the folding rollers, 81 is a driving roller and driven folding roller A8
The first folding of the paper P is performed between the folding roller B85 and the driven folding roller B85, and the second folding of the paper P is carried out between the driven folding roller B85 and the driven folding roller B85. 8
A press roller 7 feeds the paper P to the first folding plate 10 in cooperation with the folding roller A83.

The sheet P enters between the folding plate 11 and the guide plate 12 until its leading end abuts against the stopper 13. However, since feeding is forcibly performed even after contact, the paper P is moved by the drive roller 81.
It bends toward the tangent line between the drive roller 81 and the folding roller A83, and is finally sandwiched between the drive roller 81 and the folding roller A83 to form a first fold. Furthermore, from this first fold, the second folding plate 3o
, and in the same formation manner as the first fold,
A second fold is formed on the sheet P held between the drive roller 81 and the folding roller B85.

The stopper 13 is mounted on a guide block 24 in which a half nut 18 is elastically screwed onto the feed screw 21 by a coil spring 19 on the back side of the folding plate 11.
It moves together with the guide block 24 as the guide block 24 rotates.

Half nut 18 and feed screw 2 with manual knob (not shown)
1, and the position of the stopper 13 together with the guide block 24 can be manually moved along the feed screw 21. Further, the stopper 13 is attached to a movable plate 29 that is integrated with the guide block 24 with a fine adjustment screw 28 that is screwed into the movable plate 29 . This fine adjustment screw 28 is provided as a skew correction means for adjusting the stopper slightly obliquely to prevent misfolding when the sheet bundle is cut into an inaccurate rectangle.

The feed screw 21 is mounted on a bearing frame 22 by a bearing 23, and is driven by a gear 15 by a pulse generator motor 14.
．． 16.

Reference numerals 25 and 26 indicate non-contact limit switches, which are activated by sensing the index plate 27 integrated with the guide block 24, and set the movement limits of the guide block 24, that is, the upper and lower limits of the position of the stopper 13. . Especially paper P
The limit switch 25 located on the entrance side of the stopper 13 serves as a reference point for quantifying the position of the stopper 13 (see FIG. 2).

The folded product E is discharged onto the conveyor belt 91.

The conveyor belt 91 is stretched between a driving roller 93 and a driven roller 95, and conveys the folded product E in the right direction (in the direction of arrow B) in the figure. On the conveyor belt 91, a rolling paper discharge roller 97 is supported by a guide block 94 so as to be vertically movable.
Stack a plurality of sheets on top of each other and press them from above, and then
Align upright on top. A guide block 94 supporting the paper ejection roller 97 is screwed onto the feed screw 101, and as the feed screw 101 rotates, the position of the paper ejection roller 97 is translated. Further, the feed screw 101 is mounted on a bearing frame 102 by a bearing 103, and is driven by a pulse generator motor 104 via a gear train 106. 98.
Reference numeral 99 denotes a non-contact type glue limit switch, which is activated by sensing an index plate 96 provided integrally with the guide block 94, and limits the movement range of the paper discharge rollers 97.

Next, the automatic reading means according to the present invention and its related operations will be explained.

In FIG. 3, the fold designation button 11 on the operation panel 110
If you press 1 intermittently, the folding indicator light 112 will light up every time you press 1.
The lighting position (shaded area in the figure) moves upward one step at a time, so the indicator light at the position specified by the required fold shape shown on the right side of the figure lights up (in the figure, the three positions are example).

Next, press the paper size specification button 113 intermittently,
By the same operation as the fold designation button 111, the indicator light for designating "read" among the paper size indicator lights 114 is turned on (the shaded area in the figure).

When a sheet of paper is set on the paper feed plate 51 and the paper size reading button 115 is pressed, the paper feed roller 59, conveyance roller 61, and timing roller 71 are driven, and the paper is conveyed to the timing roller 71. In the paper size reading mode, the gate plate 75 rotates counterclockwise (in the direction of arrow A) in the figure at the moment when the leading edge of the paper interrupts the sensor 78 and the transmitter 79 provided at the exit of the timing roller 71. and ejects the paper upward. sensor 78
From this moment when the signal from the transmitter 79 is interrupted by the leading edge of the paper, counting of clock pulses begins in the measuring means and ends as soon as the end of the paper passes. This count value and the input conditions from the fold shape designation button 111 are processed by a known means by the arithmetic circuit of the position setting means, and the position of the stopper 13 is determined for each of the first folding plate 10 and the second folding plate 30. Set the number of pulses.

Furthermore, since the finished dimensions of folded products vary depending on the paper size and fold shape, the position of the paper ejection roller 97, which receives the product that is forcefully ejected from the folding rollers 81, 85, must be moved depending on the product. The number of pulses is set. Paper size reading button 115
to use other standard paper sizes A3. B4. When A4 or B5 is specified, the number of position pulses of the stopper 3 in combination with the fold shape is set as a constant.

Based on these set pulse numbers, each of the pulse generator motors 14 of the first folding plate 10 and the second folding plate 30 and the pulse generator motor [04] which operates the paper ejection roller 97 is driven by a known pulse control means. Then, each stopper] 3 and the paper discharge roller 97 are fixed at the set positions.

After completing each position setting, move the paper P to the paper feed plate 51.
Place the paper on top, and use the paper width setting guide plate 53 to control the paper width from both sides. Next, press the counter reset button 118 on the operation panel 110 to set all the numbers on the counter 118 to 0, then press the start/stop button 120 to start continuous automatic paper folding, and press the start/stop button again] The paper folding operation continues until -20 is pressed.

During this time, the number of fed sheets is sequentially displayed on the counter 17.

The folded product is held between the paper discharge roller 97 and the conveyor belt 91, and the paper is discharged at a speed reduced to the conveyance speed of the conveyor belt 91. A plurality of products E are stacked on top of each other and are conveyed while being pressed from above. The products E are finally arranged upright on the paper discharge plate 108.

[Effects of the Invention] As explained above, by providing the paper size measuring means of the present invention and the stopper position and paper ejection roller position setting means of the present invention in a paper folding machine, it is possible to handle non-standard paper as well as other regular paper. It can be folded into the same shape. Further, even if the operator cannot associate the paper with the standard name, there is no problem in operation.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram showing an embodiment of the device according to the present invention, and Fig. 2 is a schematic diagram showing the relationship between a non-contact limit switch and an index plate that operates it, as seen from the direction of the ■ arrow in Fig. 1. figure,
FIG. 3 shows the operation panel in this embodiment. 10...First folding machine 13...Stopper 14.1
04...Pulse generator motor 21,, 1.0
1...Feed screw 59...Paper feed roller 71...
Timing roller 78... Sensor 81... Drive folding roller 83.85... Driven folding roller 9
1... Conveyance belt 97... Paper ejection roller 110...
・Operation panel/115

Claims (1)

[Claims] Timing for pre-measuring the size of the paper to be folded in the feeding direction on the paper feed side of the paper folding machine, which is equipped with a folding plate having a stopper as means for folding the paper, and a folding shape specifying means for specifying the folding shape of the paper. A measuring means consisting of a means for detecting the passage of paper through a roller and a means for operating the same are provided, and the stopper position of the folding plate is determined based on the information from the fold shape specifying means and the paper size measuring means, and the folded paper is placed on the paper discharge plate. A paper folding machine equipped with a position setting means for setting the position of discharge rollers for discharging paper in an aligned state at the top.