JP2631401B2 - Paper folding and cutting device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding / cutting apparatus that performs folding and cutting of continuous paper simultaneously.

2. Description of the Related Art Conventionally, when a continuous sheet is cut into a predetermined size and folded in two, the cutting and folding are performed in separate steps.

Problems to be Solved by the Invention Therefore, conventionally, a two-stage process of a cutting process of cutting the paper and a folding process of folding the paper is necessary, and the speed is slower and the entire device is also enlarged. There are drawbacks. Further, after the sheet is cut, the sheet is transported to the folding mechanism. However, there is a disadvantage that the cut sheet is liable to be jammed during the transport.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional drawbacks, and provides an apparatus capable of simultaneously folding and cutting a sheet.

Means for Solving the Problems And in order to achieve the above object, in the present invention,
A delivery mechanism for delivering the paper, a stopper with which the leading end of the delivered paper comes in contact, and a paper feed mechanism which is disposed between the delivery mechanism and the stopper, and in which the leading end of the paper comes into contact with the stopper and the bent paper is A pair of folding rollers for retracting the intermediate portion and folding the sheet into two folds, and disposed between the folding roller and the delivery mechanism, and for transporting the sheet between the folding rollers and the delivery mechanism. A cutting blade configured to cut the sheet by tensioning the sheet, wherein a speed at which the sheet is drawn in by the bending roller is higher than a speed at which the sheet is fed by the sending mechanism.

The continuous sheet is first sent out to a position where it comes into contact with the stopper at the leading end. Then, when the stopper comes into contact with the stopper, the intermediate portion is bent by the above-mentioned feeding, and projects in a direction perpendicular to the sheet feeding direction. The protruding portion is drawn between the bending rollers to be bent. At this time, the rear end portion of the sheet is pulled by this pull-in, and a tension occurs. This tension causes the sheet to abut on the cutting blade, thereby cutting the sheet.

Embodiments Hereinafter, embodiments of the present invention will be described.

In FIG. 1, (1) is a continuous sheet folded in a bellows shape, and a folding perforation (3) is formed in a central portion between the bent portions (2) and (2).
(4) is a guide roller for taking out the continuous paper (1). The guide roller (4) is provided with a take-out guide plate (5) at a front portion. A pair of upper and lower delivery rollers (6) (6) is provided in front of the front end of the guide plate (5). Further, a pair of upper and lower delivery guide plates (7) and (7) are provided in front of the delivery rollers (6) and (6), and the upper delivery plate (7) is connected to the delivery roller (6). In between, a buster blade (8) for cutting is arranged. A pair of bending rollers (9) and (9) arranged before and after in the feeding direction are arranged below the lower sending guide plate (7) in correspondence with the leading end of the lower sending guide plate (7). A pair of upper and lower guide plates (1) whose front ends rise obliquely upward are provided further forward of these bending rollers (9) and (9).
A folding guide (11) composed of (0) and (10) is arranged, and a stopper (12) is provided at the tip of the folding guide (11).

In the above configuration, the leading end of the continuous paper (1) is
When the guide roller (4) is taken out from the guide roller (4) and passed through the guide plate (5) and is engaged between the delivery rollers (6) and (6), the leading end thereof is delivered by the delivery rollers (6) and (6), and the delivery guide is provided. From between the plates (7) and (7), a stopper (12) is further passed through a slit between both guide plates (10) and (10) in the bending guide (11).
Abut. The tip of the paper (1) is the stopper (12)
Still in contact with the delivery roller (6)
Since the feeding is performed according to (6), the continuous sheet (1) receives a radial force at an intermediate portion thereof. At this time, the perforation (3) is just bent by the bending roller (9).
Since it corresponds to the biting portion of (9) and has the delivery guide plate (7) in the upper portion, this bent portion is bent downward and eventually protrudes. As a result, the projecting portion is bent between the folding rollers (9) and (9). that time,
The peripheral speed of the folding rollers (9) and (9) is higher than the peripheral speed of the sending rollers (6) and (6), that is, the drawing speed of the folding rollers (9) and (9) is equal to the sending roller (9). 6) Since the feeding speed is higher than the feeding speed according to (6), the sheet (1) is pulled between the folding roller (9) and the feeding roller (6) and becomes in a tension state.
At this time, the bent part (2) is located at a position corresponding to the buster blade (8), and the bent part (2) hits the cutting edge of the buster blade (8). 2) The part will be cut. Then, the paper cut in this manner is supplied to the folding roller (9).
By being drawn into (9), it is folded in two.

In the above, the positions of the biting portions of the folding rollers (9) and (9) are determined by the stopper (12) and the buster blade (8).
If the paper (1) is located in the middle of the above, the paper (1) is folded at the center as shown in FIG.
The paper (1) can be bent at an arbitrary position by shifting the position of the biting portion of the bending rollers (9) to either one.

Effects of the Invention As described above, according to the present invention, the sheet is cut by the pulling force of the folding roller while the sheet is folded by the folding roller, so that the folding and the cutting are performed simultaneously. As compared with the case where these are performed in separate steps, the speed is high and the apparatus itself is small. In addition, since the paper is sent out in a continuous state, there is an effect that a trouble such as a paper jam does not occur.

[Brief description of the drawings]

FIG. 1 is a schematic side view of the entire apparatus showing an embodiment of the present invention, and FIG. 2 is an enlarged view of a main part of a sheet cutting section. (1) Paper, (6) Delivery roller, (8) Buster blade, (9) Bending roller, (11) Bending guide, (12) Stopper.

Claims (1)

(57) [Claims] A feed mechanism for feeding the paper, a stopper for contacting the leading end of the fed paper, and a stopper disposed between the feed mechanism and the stopper, wherein the leading end of the paper contacts the stopper. A pair of folding rollers for drawing in the intermediate portion of the folded sheet and folding the sheet in two, and disposed between the folding roller and the delivery mechanism. A cutting blade configured to cut the sheet by tensioning the sheet between the mechanisms, wherein the drawing speed of the sheet by the folding roller is higher than the sending speed by the sending mechanism. Paper folding machine