JP2520052Y2 - Paper folding device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet folding device.

[0002]

2. Description of the Related Art Conventionally, various types of paper folding devices for alternately stacking and stacking continuous paper on the front and back sides have been developed.
As disclosed in Japanese Patent No. 49253, there is one in which a sheet folding head mechanism is mounted which swings the sheet while moving it in one direction.

[0003]

However, the folding head mechanism passes through the swinging shutter while nipping the continuous paper with the driving roll and the driven roll pressed against the roll and transporting the continuous paper in one direction. Because it is something that
During the transfer, the printing surface of the continuous paper is liable to come into contact with the roll or the oscillating shutter, so that the printing surface is liable to be soiled, and improvement of this point has been required. Note that such trouble occurs not only in the case of ink printing but also in the case of electrophotography using toner, and is more likely to occur as the transfer speed increases. In view of the above-mentioned circumstances, the present invention has conducted intensive studies to improve this, and as a result, found that the paper folding head mechanism may be configured by mounting a tractor on an arm capable of swinging. .

[0004]

SUMMARY OF THE INVENTION That is, the sheet folding apparatus according to the present invention has a sheet folding head mechanism that swings continuous sheets in one direction while swinging them so that they can swing on the apparatus frame. A mounted arm and a tractor mounted on the arm so as to transfer the sheet,
The drive device is mounted on the device frame so as to drive the arm and the tractor.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. The sheet folding device shown in FIG. 1 has a printed continuous sheet having perforations for folding or cutting. A paper folding head mechanism 2 for swinging the paper 1 while moving the paper 1 in one direction (indicated by the arrow in the drawing) is mounted on the apparatus frame as shown in FIG. A pair of arms 5 fixed to a shaft 4 mounted so as to be rotatable on
And a pair of tractors 6 mounted on both arms 5, and a drive device 7 for driving the arms 5 and the tractor 6. The tractor 6 is configured by a pin belt 10 spanning between pulleys 9 fixed to predetermined positions of upper and lower spline shafts 8 rotatably mounted on the left and right arms 5.

On the other hand, the drive device 7 is composed of a motor 11 fixed to the device frame 3, a tractor drive mechanism 12 and an arm drive mechanism 13, and the tractor drive mechanism 12 rotates on the device frame 3. A shaft 14 mounted so as to be able to move, a chain 17 fixed to the shaft 14 and a chain wheel 16 fixed to the output shaft of the motor 11, and a pulley 17 fixed to the shaft 14. 18 and a timing belt 20 spanned by a pulley 19 mounted on the shaft 4 such that the pulley 19 can rotate but cannot move in the axial direction, a pulley 19 on which two belts can be hung, and a lower spline shaft. 8 and a timing belt 22 wound around the pulley 21. The arm driving mechanism 13
Is a gear 23 fixed to the shaft 14, gears 24 to 26 rotatably mounted on the device frame 3, and a gear 2
6, a swing angle adjusting link 27 fixed to the shaft 6, a link 28 fixed to the shaft 4, and a link 29 connected to both links 27, 28. The gear 25 is detachably attached so that it can be exchanged with another gear as needed, but by exchanging the gear 25, the swing speed of the arm 5 can be adjusted in various ways.

By operating the motor 11, it is possible to drive the pair of tractors 6 via the tractor drive mechanism 12, whereby the pins of the pin belt 10 of the tractor 6 are connected to the printed continuous paper 1. The continuous printed paper 1 is transported by successively engaging with the feed holes (so-called marginal holes, which are penetrated through the paper at both ends in the width direction at a constant pitch in the longitudinal direction of the paper). be able to.

At this time, the printed continuous paper 1 has the printing surface side up and the guide plate 3 mounted on the apparatus frame 3.
Since it is guided and transferred at 0, it is possible to completely prevent the stain on the printing surface. In addition to this driving, the pair of arms 5 can be oscillated constantly (see FIG. 1) via the arm driving mechanism 13, so that the printed continuous paper 1 can be folded one after another.

That is, the apparatus frame 3 is fixed on the carriage 31, but a photoelectric tube type paper height sensor 32 is mounted below the swinging arm 5 with respect to the frame 3. In addition, a screw shaft 34 to which the table 33 is screwed is attached. Therefore, the table 33 can be controlled to move up and down by rotating the motor 35, whose output shaft is connected to the lower end of the screw shaft 34, in a predetermined direction, and the table 33 is positioned on the table 33 positioned at a predetermined height. By swinging the arm 5, the printed continuous paper 1 can be alternately folded and accumulated on the front and back sides. At this time, when the light beam of the paper height sensor 32 is blocked by the printed continuous paper 1 that is folded and accumulated for a certain period of time, the motor 35 is rotated for a certain period of time, whereby the table 33 is moved downward by a predetermined amount. It

In this way, the printed continuous paper 1 that is continuously transferred can be folded one after another.
The same drive source (motor 11) for the tractor 6 and the arm 5
Therefore, even if the rotation speed of the drive source (motor 11) changes, the ratio between the paper transfer speed of the tractor 6 and the swing speed of the arm 5 can be maintained at the reference ratio (setting ratio). It does not deteriorate the foldability. Also, the tractor 6
Since the arm and the arm 5 are also rocked together, the
Even if electricity is generated, it does not depend on the influence of it, but only
Even when slipping is prevented, paper can be loaded accurately and securely.
Since the paper can be transferred to the folding position,
For example, even if it is thin such as carbonless paper,
It does not deteriorate the foldability.

A guide 36 is mounted on the dolly 31. The guide 36 is provided to regulate the width of the folding paper so as not to interfere with the vertically moved table 33. By pushing or pulling 37, the folding paper width can be adjusted to a predetermined value.
Further, the photoelectric tube type sheet detection switch 38 mounted on the apparatus frame 3 is for cooperation with other apparatuses.

Although one embodiment according to the present invention has been described above, the present invention may be folded into a shape other than deposition. FIG. 3 shows an example in which the conveyor device 40 is arranged and folded in a corrugated shape. The device 40 includes an endless belt 42 mounted so as to be driven by a motor 41, and the belt 42 can be folded into a waveform while rotating the belt 42 at a predetermined speed. The guide 43
Is a position regulation guide, and the endless belt 42
Is the fixed-side conveyor frame 44 and this frame 4
4. Pulleys 46 to 49 mounted on the movable conveyor frame 45 mounted so as to be able to swing with respect to FIG.
Have been hung over.

[0013]

As described above, according to the present invention, it is possible to completely prevent the printing surface of continuous paper from being soiled, and to fold it even if the rotation speed of the driving source (motor) fluctuates. It is possible to prevent deterioration of sex , and in addition,
The paper is thin, such as carbonless paper
Even if it is, transfer it to the folding position accurately and surely
Can be obtained a sheet folding device that can be prevented can be by folding degradation.

[Brief description of drawings]

FIG. 1 is a front view of a sheet folding device.

FIG. 2 is a perspective view of a paper folding head mechanism.

FIG. 3 is a front view of a sheet folding device according to another embodiment.

[Explanation of symbols]

 1 Printed continuous paper 2 Head mechanism for folding paper 3 Device frame 5 Arm 6 Tractor 7 Drive device 12 Tractor drive mechanism 13 Arm drive mechanism

Continuation of the front page (56) References JP-A-49-2619 (JP, A) JP-A-3-56365 (JP, A) Actual opening Sho-55-154598 (JP, U) Actual opening Sho-58-114260 (JP , U) Japanese Patent Sho 42-14651 (JP, B1) Actual Sho 33-3699 (JP, Y1) Actual Sho 59-16367 (JP, Y2)

Claims (1)

(57) [Scope of utility model registration request] 1. A paper folding head mechanism for swinging a continuous sheet while moving it in one direction, and an arm suspended so as to swing on a device frame, and a sheet folding head mechanism for transferring the sheet. A sheet folding device comprising a tractor attached to an arm and a drive device attached to the device frame so as to drive the arm and the tractor.