JPS58220061A - Paper folding device - Google Patents

Abstract

PURPOSE:To make it possible to automatically carry out folding operation of a continuous paper, by providing a folding trend detector upstream of means for feeding the continuous paper, and by controlling the direction of driving a paper end transferring means laid on a paper receiving bed in accordance with the output of the detector. CONSTITUTION:Upon the initiation of folding operation, a paper receiving bed 8 and a paper end tranferring means 13 are positioned their uppermost position, and a continuous paper 1 fed from a printing device is led to the paper receiving bed 8 through a guide plate 5, etc. In this stage, a motor 11 is normally or reversely rotated in accordance with the output of a folding trend detector 7, for making a paper end transferring means 13 travel rightward or leftward. Thereby, the continuous paper 1 is transferred toward one of fodling ends on the paper receiving end 8, and is folded at its folding trened part by the cooperation of a padller 22 and a page limiting bar 26. Then, the paper bed 8 is sequentially lowered by an elevator 10 while the continuous paper 1 is folded to the left and right, and as well, is inclined downward about a shaft 12 overcoming a spring 18, and the upper surface of the folded paper is always held in the horizontal condition.

Description

[Detailed description of the invention] The present invention relates to a paper folding device, and more particularly, to a paper folding device.

The present invention relates to a device for folding continuous paper with creases sent out from various printing devices such as electrophotographic printers and line printers.

Printing paper is made with folds such as perforations. When so-called folded continuous paper is used, the printed continuous paper sent out from the printing device is folded using its creases. Continuous paper has folds that are convex on its negative side 11f11 and convex on the other side, and it has folds with these two types of directionality alternately.9 It is possible to fold continuous paper that is sent out one after another into a box shape.

Conventional continuous paper folding devices include a single paper holder.

Some devices are known that are equipped with a patella provided above the paper holder and at both ends thereof. This conventional device folds the continuous paper that is fed one after another onto the paper holder by shaking it off with a patler.9 The continuous paper that is fed one after another onto the paper holder is folded onto the paper holder. I fold it up and then start it. That is, in order to determine whether the first fold that is fed onto the paper tray after startup should be placed at one end or the other end of the nine paper tray, that is, which folding end is on the left or right, the operator must Several pages of continuous paper are folded in advance on a paper holder, and the folds are guided to a predetermined folding end by folding. However, such preparatory work is very troublesome and also becomes an obstacle to automating the work.

An object of the present invention is to solve the above-mentioned drawbacks of the conventional device, and to automatically perform the folding operation, thereby saving the operator from the troublesome work of folding the continuous paper on the paper holder before starting. To provide a paper folding device that can be released.

To achieve the above object, the present invention is a device for folding continuous paper with creases fed from a printing device, and the device comprises a means for feeding the continuous paper, and a means for feeding the continuous paper. a folding direction detector provided upstream of the feeding means with respect to the running direction; a paper pedestal provided below the feeding device; a paper edge transfer device attached to the paper pedestal; and a drive source coupled to a paper edge transfer means, and the folding direction detector is connected to the drive source.

An embodiment of the paper folding device of the present invention will be described.

In FIG. 1 (schematic front view), 1 is continuous paper. This continuous paper 1 has been subjected to fold processing such as perforations, and has two types of directional folds that are convex on the negative side or the other side alternately, and has a code: As shown in 4, it can be folded into a box shape.

2 is a feed roller, and 6 is a feed roller which is a feeding means. A curved guide plate 5 is installed between the feed roller 2 and the feed roller 5. In addition, the feed roller 6 is
A paper presence/absence detector 6 is installed on the upstream side, and a folding direction detector 7 is installed further upstream of the paper presence/absence detector 6. These paper presence/absence detector 6 and folding direction detector 7 are
It consists of things like pressure-sensitive sensors and light emitters and receivers.

The folding direction detector 7 is preferably installed at a distance corresponding to at least the vertical size of the continuous paper 1 from the feed roller 3. , 8 is a paper holder installed below the feed roller 6. This paper holder 8 is attached to a support 9.

The support base 9 is still attached to a lunar descender 10 equipped with a rack and pinion mechanism, and can be raised and lowered by a motor (not shown). The above-mentioned motor is connected to the above-mentioned paper presence/absence detector B via its control means (not shown). A paper edge transfer means 16 is attached to the motor 1, which is driven via a rotating shaft 12 attached to the support stand 9.
1 is connected to the folding direction detector 7 via its control means (not shown). 14 is.

This is a paper lifting member provided below the paper holder 8.

” Yu writing paper 51: =r 8 has a large number of plate-shaped paper receiving members 15 arranged in the same number on the left and right sides of the one-rotation shaft 12, as shown in FIG. are doing. Each paper receiving portion +J15 iJ' is supported by a frame 16 attached to the rotating shaft 12 via a bear link (not shown). A fixed shaft 17 attached to the support stand 11 is installed directly below the rotating shaft 12.

A number of torsion coil springs 18 equal to the number of paper receiving members 15
is supported. Each of these torsion coil springs 18 has one end engaged with the support base 11 and the other end engaged with the frame 16, and keeps the paper receiving member 15 horizontal at all times. Reference numeral 19 denotes a long hole drilled corresponding to the second member 14 holding nine sheets.

Further, the nine paper edge transfer means 13 are arranged on the left and right sides of the nine rotation shaft 12, as shown in FIG. It has a large number of flat belts 20 that have rough surfaces and are made of stretchable materials such as rubber or cloth. Each flat belt 20 has nine pulleys (not shown) attached to the rotating shaft 12 and a frame 16.
The paper receiving member 15 is stretched between the paper receiving member 15 and a pulley (not shown) attached to a fixed shaft 21 attached to the tip of the member. The gap between the upper surface of the paper receiving member 15 and the flat bell 20 is extremely small, and it can be said that the two are substantially in contact with each other.

Referring again to FIG. 1, 9 above the paper holder 8.

At both ends thereof, a plurality of putters 22 are installed in the width direction of the continuous paper 1 (direction perpendicular to the plane of the paper). This patroller 22 has an endless belt 25 having an uneven surface, such as a chain, stretched between a drive roller 26 and a guide bar 24 in a relaxed state, and a distance between the drive roller 26 and the guide bar 24 is maintained. Distal meatus and/or endless band 2
By changing the length of 5.1. The inner sag can be made smaller when the vertical-to-vertical angle of the continuous paper 1 is large, and can be increased when it is small.

A plurality of nine negative end regulating bars 26 are installed in the width direction of the continuous paper 1 above the folding paper holder 8 and at both ends thereof. This positioning end regulating bar 26 is.

The installation position can be changed in the horizontal direction in FIG. 1 depending on the vertical size of the continuous paper 1.

In the vicinity of the row of the positioning end regulating bars 26, a control means for the above-mentioned stopper motor 11 is connected. A paper end presence/absence detector 27 consisting of a pressure sensor, a light emitter/receiver, etc. is installed. Further, a folding detector 28 consisting of a light emitter/receiver or the like is installed at a position approximately at the same height as the paper holder 8. This folding detector 28 is.

It is connected to a control means for a motor for lifting and lowering the support table 9.

Next, to explain the operation of the above-mentioned device, in FIG. Adjust and set.

Next, power on the device. Then, the motor for raising and lowering the support stand 9 rotates, the support stand 9 rises, the paper holder 8 and the paper edge transfer means 13 rise to the folding start position shown by the solid line in FIG. 1, and then stop. At the same time, the feed roller 2, the feed roller 6, and the drive roller 25 of the patroller 22 start rotating.

Continuous paper 1 sent out from a printing device such as an electrophotographic printer or a line printer is passed through a feed roller 2. Guide plate 5. The paper is guided onto the paper holder 8 via the feed roller 5, and at that time, the folding direction detector 7 detects the direction of the first fold that the continuous paper 1 passes through at all of its installation positions, that is, the first fold υ of the continuous paper 1.
The direction of the crease is detected, and the motor 11 is rotated forward or reverse to cause the one-sheet edge transfer means 16 to travel rightward or leftward in FIG. The paper edge transfer means 16 moves to the right when the direction of the fold is convex upward in FIG. Run each.

However, it is slightly curved in the direction of the curl.

Its leading edge contacts the paper edge transfer means 16 and at the same time rests thereon, thereby reaching the installation position of the paper edge regulating bar 26.

In other words, it is transported toward the folded end. Namely.

The leading edge of the continuous paper 1 is transferred toward one or the other folded end on the paper holder 8 depending on the direction of the first fold of the continuous paper 1. Case 1 Paper edge transfer means 1
In order to prevent the leading page of the continuous paper 1 from curling significantly during transport, the filter is preferably run at a speed equal to or slightly faster than the feed speed of the feed roller filter.

27 is activated, the motor 11 is stopped, and the paper edge transport means 15 is activated.
stops. Hereinafter, how the continuous paper 1 is folded and stacked on the paper holder 8 will be explained using the drawings.

In FIG. 6 (schematic front view), the nine paper edge transfer means 16 is running to the left in the drawing. That is, this state is a case where the direction of the first fold is convex downward in FIG. At this time, the continuous paper 1 moves along a trajectory shown by a, b, and c toward the left side of the drawing, and moves from state C to state d, and its developed curls appear in the pattern 22 on the right side of the drawing. It comes into contact with the endless band 25 of. Then, since the continuous paper sheet 1 and the endless band 25 are running in the direction of the arrow, they are pushed downward to a state of θ, and then further pushed downward by the bending of the endless band 25 to become a state of f. . f
When it is pushed to the state shown in FIG.

It is folded into the g state at the crease. From then on.

The same thing is repeated on the left and right sides, and 9 sheets of continuous paper 1 are placed on the paper holder 8.
are folded and piled on top of each other. On the other hand, as the continuous paper 1 is folded, the fold detector 27 shown in FIG. so that the folding operation is always performed at the same height. When the amount of folding reaches a certain level,
The paper pedestal 8 was supported horizontally by the handle. The paper holder 8 moves against the rotating shaft 12 against the force of the torsion coil spring 18 shown in FIG.
Tilt downward using as a fulcrum. This inclination prevents the folded ends from bulging upward.

The top surface is always flat, allowing for reliable folding operations.

Now, when the continuous paper 1 sent out from the printing device runs out, the paper presence/absence detector 6 is activated, the elevating motor of the elevator 10 is driven, and the paper holder 8 is lowered to the lowest position. As a result of this descent, as shown in FIG.
It is moved upward and becomes the state shown by the dashed line. At this time, since the elongated hole 19 is formed in the paper receiving member 15 (FIG. 2), the paper receiving stand 8 and the paper lifting member 14 will not interfere with each other. The operator takes out the continuous paper 4 in this state, and the state immediately before taking out is shown by the dashed line in FIG.

In the above embodiment, the feed roller 3 may be, for example, a tractor.

However, the paper presence/absence detector 6 may not be provided, and the driving motor of the elevator 10 may be turned on and off manually.

Furthermore, the operation time of the motor 1 may be set by a timer instead of relying on the 9 chaste woman presence detector 27 to stop the running of the 2 paper edge transfer means 1.

Furthermore, both fs of the two paper holders 8 are used as the two paper edge transfer means 16.
A blower or suction means is installed at the end of the illumination.

These blowers still have an air intake means folded in.Direction detector 7
It is designed to be selectively switched and operated according to the output signal of
1 is fine. Further, on the upper surface of the paper holder 8, a plate is installed which can be tilted left and right around the position of the rotating shaft 12 shown in FIG.
The plate may be tilted in the transfer direction according to the output signal of the folding direction detector 7, and the paper edge may be slid and transferred.

As explained above, the paper folding device of the present invention has the following features.

Since the folding direction detector provided on the upstream side of the feeding means with respect to the running direction of the continuous paper is connected to the drive source of the paper edge transport means attached to the paper holder, the printing device The leading edge of the continuous paper fed out from the continuous paper can be transferred to one or the other folding end on the paper holder depending on the direction of the first fold crease that appears on the continuous paper, and the folding operation can be automated. This eliminates the tedious task of folding several pages of continuous paper onto a paper holder at start-up, and allowing subsequent continuous paper to be guided to the predetermined folding edge by the folds. It can free up the operator. In addition, if the paper folding device of the present invention is used in combination with a device that automatically threads paper into a printing device, the entire process from loading and unloading continuous paper into the printing device to folding can be automated. You will be able to do this.

[Brief explanation of drawings]

FIG. 1 is a schematic front view showing one embodiment of the paper folding device of the present invention, and FIG. 2 is a partially cutaway schematic plan view showing the paper receiver and paper edge transfer means shown in FIG. 1 above. , FIG. 6 is a schematic front view showing how the continuous paper is folded onto the paper holder, and FIG. 4 is a schematic front view showing how the continuous paper on the paper holder is transferred onto the paper lifting member. This is a front view. 1: Continuous paper 2: Feed roller 6: Feed roller 4: Continuous paper 5 in folded state : Motor 12: Rotating shaft 16: Paper edge transfer means 14: Paper holding part 15: Paper receiving member 16: Frame 17: Fixed shaft 18: Torsion coil spring 19: Long hole 20: Flat belt 21: Fixed shaft 22: Budler 2ro: Drive roller 24 Ni guide par 25: Endless band 26: Negative end regulation bar 27 2nd paper edge presence/absence detector 28: Folding detector Risryo No. 1i10

Claims (1)

[Claims] A device for folding continuous paper with creases sent out from a printing device, the device comprising: feeding means for the continuous paper;
a folding direction detector provided upstream of the feeding means with respect to the running direction of the continuous paper; a paper holder provided below the feeding means; and a folding direction detector provided on the paper holder. A paper folding device comprising a paper edge transfer means and a drive source coupled to the paper edge transfer means, and the folding direction detector is connected to the drive source.