JP3026458B2 - Perforator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a punching device, and more particularly to a punching device suitable for punching a copy sheet in post-processing of a copying machine.

[0002]

2. Description of the Related Art Conventionally, as a punching device of this type, there is known a device in which a paper is placed on a die provided with a die hole and the punch is guided by the die hole and moves through the hole. Have been.

[0003]

The conventional perforating apparatus as described above can perforate a small amount of paper at a time. However, when the number of sheets increases, a large force is required and it cannot be performed at a time. (1) There is a problem that it is necessary to pierce several times or (2) to rotate the punch like a drill. However, the method (1) has a problem in that the accuracy of the hole position deteriorates and the drilling operation becomes inefficient. In the method (2), a device for rotating the punch is required, and the entire device is required. There is a problem that it becomes expensive in addition to being large.

Accordingly, an object of the present invention is to solve the above-mentioned problems of the conventional punching apparatus, and to efficiently and accurately punch a large number of papers. To offer.

[0005]

In order to achieve the above object, the present invention has a plurality of pedestals arranged in parallel at intervals, and the pedestals have a direction intersecting the surface thereof. A die provided with a concentric die hole, a punch guided in the die hole and moving in the hole, and a swingable distributing plate for distributing paper to the base side. It is a feature.

[0006]

In the punching apparatus of the present invention as described above, if the number of papers to be punched is small, all the papers are placed on one base and punched with a punch. The punch is pierced so as to penetrate through the die holes of all the pedestals and placed on the pedestals separately, and all the paper is punched at once.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the embodiment of the present invention shown in the drawings, a die 1 has a plurality of pedestals 2 arranged in parallel at intervals.
The bases 2, 3, and 4 are provided with concentric die holes 5, 6, 7 in a direction intersecting the surface thereof.
First and second perforated portions 10 and 11 are formed between the base portions 1 and 2 and between the base portions 2 and 3, respectively. A punch 8 is provided which is guided by the die holes 5, 6, and 7 and moves in the holes.

Reference numerals 12 and 13 denote first and second trays for guiding the paper to the first and second perforated portions 10 and 11, respectively. The leading ends of the first and second trays are bent upward, and the paper is placed upstream in the paper transport direction. A swingable distributing plate 15 for distributing to one of the trays 12 and 13 is provided. The distributing plate 15 distributes paper to one of the trays 12 and 13 according to the number of papers by a control means (not shown). I'm going to do it. Reference numeral 16 denotes a container for storing perforated waste.

In the above-described punching device, the transport plate 17
When a small amount of paper is conveyed above, the distribution plate 15
The paper 18 guided by this is loaded on the first tray 12 at the first punching unit 10, where the punch 8 pierces the paper 18 through the die hole 5, and the perforated dust is removed. Is discharged into the container 16 through a through hole 20 provided in the rear wall of the die 1. On the other hand, when a large number of papers are transported on the transport plate 17, the distribution plate 15 is first set to the position shown in FIG. 1
When the stacking is completed, the distribution plate 15 is moved to the position shown in FIG. 3, and the paper 19 guided by this is loaded on the second tray 13 in the second perforated portion 11, where the punch 8 is placed. Pierces the paper 18 through the die hole 5 and then pierces the paper 19 through the die hole 6, during which the first perforated portion
The debris generated in 10 is discharged to the container 16 through the through hole 20 provided in the rear wall of the die 1, and the debris generated in the second perforated portion 11 is discharged to the container 16 from the die hole 7. In this embodiment, the first
At the front ends of the two trays 12 and 13 and at the rear end of the distribution plate 15, convex portions 22 and 23 that mesh with each other are formed.
Is prevented from being conveyed to the first tray 12 with the momentum during conveyance. In this embodiment, the number of perforated portions is two, but the number of perforated portions is not limited to two.

[0010]

As described above, the present invention has a plurality of pedestals arranged in parallel at an interval, and the pedestals are provided with concentric die holes in a direction intersecting the surface thereof. Since it is provided with a die that has been guided, a punch that is guided in the die hole and moves through the hole, and a swingable distribution plate that distributes the paper to the base portion side, even if a large number of papers are punched, It does not require extraordinary force, and it can be performed at the same time, the accuracy does not fall, and there is no need to rotate the punch, so there is no need to install a device for that, so this device In addition to generating no noise and vibration due to operation, there is an effect that an inexpensive drilling device can be provided without increasing the size and complexity of the entire device.

[Brief description of the drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

FIG. 2 is a partially longitudinal front view showing a state in which a small number of paper sheets are perforated.

FIG. 3 is a partially longitudinal sectional front view showing a state when a large number of papers are perforated.

[Explanation of symbols]

 1 Die 2,3,4 Base part 5,6,7 Die hole 8 Punch 10,11 First and second perforated part 18,19 Paper

Claims (1)

(57) [Claims] [Claim 1 further comprising a plurality of base portions arranged in parallel at intervals, and die concentric die hole direction is provided intersecting the surface to the base portion, guided by the die hole The punch is moved through the hole and the paper is distributed to the base
And a swingable distribution plate .