JPH0325919Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field This invention relates to a copying machine with a punch mechanism, and more specifically, it is a method for automatically punching holes in copied sheets copied by the copying machine itself. The present invention relates to a copying machine with a punch mechanism that can form and discharge.

(b) Conventional technology As a conventional copying machine with a punch mechanism, for example,
An electromagnetic solenoid-driven punch blade is placed in front of the output outlet for copied paper, and two punch blades are separated further in front of the punch blade.
It is known to have a conveyance path for copied paper consisting of two paper feed rollers and a paper presser, and a paper stopper on the conveyance path near the discharge port (Japanese Unexamined Patent Publication No. 140755/1982). reference).

The paper feed roller temporarily stops rotating when the leading edge of the copied paper (hereinafter simply referred to as paper) comes to the position of the operating stopper, and while the roller is stopped, the punch blade is activated. After the punch blade has finished operating, the paper feed roller starts rotating again, and the punched paper is transported forward and discharged from the discharge port.

Of course, when the leading edge of the paper is stopped at the stopper and the paper feed roller near the stopper has stopped rotating, one of the paper feed rollers is rotating, so the paper forms a loop in the middle. This loop corrects the distortion of the leading edge of the paper or the deviation of the paper in the lateral direction, thus making it possible to punch holes at desired positions on the paper.

(c) Problems to be solved by the invention However, in the copying machine with a punch mechanism described above, the rotation of the paper feed roller is stopped when the leading edge of the paper reaches the stopper position, and then the rotation of the paper feed roller is stopped again after the punch blade has finished operating. Since the paper feed roller must be rotated and the stopper must be deactivated, the operation of the paper feed roller, punch blade, and stopper must be controlled based on the detection of the leading edge of the paper, especially the complicated control of the paper feed roller. However, there was a problem in that it was difficult to apply to high-speed copying machines.

Furthermore, forming punch holes in copied paper as described above,
There was also the problem that this could only be done with a copying machine that had a built-in punch hole forming mechanism.

(d) Means for solving the problem and its operation This invention consists of a copying machine body and a punching device that is detachably attached to the body and punches the copied paper fed from the copied paper conveyance roller of the copying machine body. It consists of a punch hole forming mechanism that forms a hole and discharges it to the outside. a loop guide part capable of forming a loop in the copied paper; a punch blade guided from the loop guide to form a punch hole in the copied paper; and a punch blade guide part thereof, installed between the two guide parts, A detector that detects the leading edge of the guided copy paper, a discharge roller that discharges the punched copy paper guided from the punch blade guide to the outside, and a device between the discharge roller and the punch blade guide. A stopper is installed to block the path of the copied paper from the punch blade guide section to the discharge roller, and the copied paper transport roller is continuously rotated at a preset speed, and based on the detection signal from the detector, After a predetermined period of time, the stopper is activated, and then the punch blade is activated to form a punch hole in the copied paper that is not moving. The ejection roller, so that the punched copy paper directly reaches and is pushed into the ejection roller.
This is a copying machine with a punch mechanism that includes a punch blade and a punch control section that outputs an operating signal to a stopper.
In other words, this idea eliminates the paper feed roller, which is conventionally installed in front of the punch blade, which requires complicated rotation and rotation.
This eliminates the control object itself that requires stop control, thereby simplifying control and enabling high-speed copying and punch hole formation. Furthermore, by making the punch hole forming mechanism removable from the copying machine body, this invention is practical because even a copier without a punch hole forming mechanism can be equipped with a punch hole forming mechanism if necessary. It is.

Specifically, a microcomputer, an electronic circuit, an electric circuit, etc. are used as the punch control unit in this invention, and the specific contents of the operation signal include a preset copy paper transport roller. When the machine rotates continuously at a set speed and receives a detection signal from the detector, the stopper is first actuated, and then the punch blade is activated after a predetermined time that can be calculated from the set speed as the time for the copied paper to reach the punch hole punching position. Operate for a predetermined time. The punch control section then stops the operation of the stopper, but while the stopper prevents movement of the copied paper, a desired loop is formed in the copied paper in the loop guide section.

(e) Examples This invention will be described in detail based on the examples shown in the figures below. Note that this invention is not limited to this.

First, in FIG. 2, a copying machine with a punch mechanism 1
is a copying machine main body 10 and a copied paper conveying roller 2 which is removably installed in this main body and which is attached to the copying machine main body 10.
The punch hole forming mechanism 11 forms punch holes in the copied paper C supplied from the paper and discharges it to the outside.

This punch hole forming mechanism 11 includes a loop guide portion 9, a punch blade 4, and a punch blade guide portion 12 thereof.
, the detector 5, the stopper 32, and the discharge roller 7
and a punch control circuit 13. The loop guide section 9 receives and guides copied paper (hereinafter simply referred to as paper) supplied from the conveyance roller 2, and loops the paper during the guidance. Specifically, it consists of a substrate 14, on which a riser plate 8 serves as a guide for the paper loop.

The punch blade 4 includes a blade shaft 15 and a sliding piece 16 that slidably contacts the cam 3. Note that 17 is a biasing spring coil for maintaining contact between the sliding piece 16 and the cam 3. Next, the punch blade guide section 12 consists of an upper plate 18 and a base plate 19 that face each other vertically at an interval suitable for conveying the paper, and both have through holes 20 and 21 through which the blade shaft 15 of the punch blade 4 passes.
is formed.

Next, the detector 5 consists of a microswitch, especially as shown in FIG. 1, and the punch control circuit 13 consists of an electronic circuit.

The stopper 32 mainly includes a stopper tip 33, a solenoid 34, and a lever 37 that connects the solenoid's drive shaft 35 and the stopper tip 33 and is rotatably supported on a fulcrum 36.

In this way, the paper fed from the paper conveyance roller 2 of the copying machine main body 10 passes through the loop guide section 9 and heads toward the punch blade guide section 12, but on the way, the leading edge of the paper is detected by the detector 5. . Then, based on the detection signal, the punch control circuit 13 outputs an activation signal for the stopper 32, and after a predetermined period of time has elapsed, that is, after the paper has reached the punch hole punching position.
An activation signal for the cam 3 is output, whereby the blade shaft 15 is lowered via the sliding piece 16 to form a desired hole in the paper. Note that the punched paper is collected in a punch waste receiver 6. The stopper 32 is then lowered by the output of the operation stop signal.

The paper with holes formed therein is forcibly prevented from moving near the leading end by the stopper 32, while the rear part is pushed forward by the paper conveying roller 2. Therefore, the paper in the loop guide section 9 forms a loop as shown in FIG. 2, and after the punch blade operates, the punched paper is moved by the loop (more precisely, it is also moved by the paper conveying roller 2). , directly reaches the discharge roller 7 and is pushed and discharged.

Note that the punch hole forming mechanism 11 has hook-like pieces 22 and 23 on the side wall of its housing, and these hook-like pieces engage with the through holes 24 and 25 of the copying machine main body 10, respectively. It is coupled to the copying machine main body 10. Note that even if the punch hole forming mechanism 11 is removed from the copying machine main body 10, the copying function of the copying machine main body 10 is guaranteed.

As described above, the copying machine 1 with a punch mechanism can utilize the punch hole forming mechanism 11 of the copying machine main body 2 without providing a special conveyor roll, and moreover, the punching mechanism 11 can utilize the loop guide section 9 and the punch blade guide section 12. Punching holes can be formed in paper without using a delivery roller that is difficult to control, and therefore copying and punching holes can be performed at high speed with simple control.

In FIG. 3, 26 is a pulley that receives power from a drive motor 27 through a belt 28, and 29 is a cam control solenoid that selectively transmits the power from the pulley to the cam 3. 30, 31
is a gear for driving the discharge roller 7.

(f) Effects of the invention According to this invention, the operation control of each component is simplified, and high-speed copying and punch hole formation are possible.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of the main part configuration showing an embodiment of this invention, FIG. 2 is an explanatory diagram of the overall configuration, and FIG. 3 is a perspective explanatory diagram of the punch hole forming mechanism. 1... Copying machine with punch mechanism, 2... Copied paper conveyance roller, 3... Cam, 4... Punch blade, 5...
Detector, 7... Discharge roller, 9... Loop guide section, 10... Copying machine main body, 11... Punch hole forming mechanism, 12... Punch blade guide section, 13... Punch control circuit, 32... Stopper .

Claims (1)

[Scope of Claim for Utility Model Registration] A copying machine main body and a punch hole detachably attached to the main body for punching holes in the copied paper fed from the copying paper conveyance roller of the copying machine main body and discharging it to the outside. This punch hole forming mechanism directly receives and guides the copied paper supplied from the copied paper conveyance roller of the copying machine main body, and can form a loop in the copied paper during the guidance. A loop guide section, a punch blade that forms a punch hole in the copied paper guided from the loop guide section, and the punch blade guide section, and a punch blade guide section that is installed between these two guide sections to hold the leading edge of the guided copied paper. A detector is installed between the output roller and the punch blade guide, and a discharge roller is installed between the discharge roller and the punch blade guide to discharge the punched copy paper guided from the punch blade guide to the outside. A stopper that blocks the path of the copied paper toward the roller, and the copied paper transport roller are continuously rotated at a preset speed, and the stopper is activated after a predetermined time based on a detection signal from a detector; Next, the punch blade is activated to punch holes in the copied paper while the movement is stopped, and the loop formed in the loop guide section while the stopper is operating allows the punched copied paper to be directly ejected after the stopper is activated. the ejection roller so that it reaches and is pushed into the roller,
A copying machine with a punch mechanism that includes a punch blade and a punch control unit that outputs an operating signal to a stopper.