JPH0547653Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a continuous paper cutting device that cuts continuous paper after outputting predetermined information to the continuous paper using an output device or the like.

In recent years, computers have been increasingly used to process small batches and a wide variety of types, and therefore, when outputting to continuous paper using an output device such as a computer printer, it is necessary to cut the continuous paper that is ejected from the output device each time. is required to do so.

However, when the continuous paper that is sequentially discharged from these output devices is subsequently cut by a cutting device, if the processing speeds of the output device and the cutting device are not synchronized, the paper will not be cut between the output device and the cutting device. Problems such as tearing and paper not being able to be processed smoothly have arisen. In addition, when setting paper in the cutting device, if the paper is not aligned accurately, the cut size may be misaligned, and when changing the cut size, the setting position must be shifted and the paper set again. Not only is this cumbersome, but it is also impossible and very inconvenient to change the cutting size for each cutting.

In view of the above points, this invention enables smooth cutting of continuous paper ejected from printers of electronic computing devices and various output devices including these printers with a simple structure without requiring complicated synchronization means. The purpose of the present invention is to provide a continuous paper cutting device which not only allows easy setting operation and accurate cutting size without deviation, but also can cut into various cutting sizes each time.

Next, this invention will be explained based on drawings showing an embodiment of this invention.

FIG. 1 is a side cross-sectional explanatory view of a continuous paper cutting device 1 of this invention.
A tension sensing device 5, a paper feed tractor 6 having a paper feed pin 6', a paper leading edge detection device 7, and a cutter device 8 are provided in order in the transport direction of the continuous paper 3, located on the side from which the continuous paper 3 is discharged. The drive of the paper feed tractor 6 is obtained from the pulse motor 9, and when the tension sensing device 5 detects a tension of a predetermined value or higher, a stop signal is given to the pulse generator provided to the pulse motor 9 to stop the paper feed drive. (See the timing chart in Figure 2).

The tension sensing device 5 is configured such that an arm 11 having a roller 10 attached to its tip rotates within a predetermined range around a branch 12.
is ejected from the printer 2, passes under the rollers 10, and is drawn into the paper feed tractor 6. Therefore, when the slack in the continuous paper 3 is removed and tension is applied between the printer 2 and the continuous paper cutting device 1, the roller 10 is lifted upward, and the arm 11 is rotated to the position shown by the broken line in FIG. At times, a stop signal is given to the pulse generator of the pulse motor 9 to stop the feeding of the continuous paper 3.

Further, this continuous paper cutting device 1 is provided with a paper cutting instruction device 15, and this paper cutting instruction device 15 cuts the continuous paper 3 by a paper feed tractor 6, as also shown in the explanatory diagram of FIG. is sent, the leading edge of the continuous paper 3 is detected by the paper leading edge detection device 7, and a calculation start command signal generator A that generates a calculation start command signal and a pulse signal P given to the pulse motor 9 are obtained and the paper feeding tractor 6 It has a paper feed amount signal generation section B that generates a paper feed amount signal of , and a storage section C that stores and generates a cutting size signal corresponding to a desired cutting size inputted in advance from the paper cutting size setting input section 13. When the work is started and the leading edge of the continuous paper 3 reaches the paper leading edge detection device 7, the calculation start command signal generation section A generates the calculation start command signal, and then the calculation start command signal is received and the cutting size signal in the storage section C is output. Paper feed amount signal generator B
The paper feed amount signal is compared and calculated, and a paper cutting command signal is issued to drive the cutter device 8.

In this case, the paper cutting instruction device 15 is provided with an appropriate counter that counts the paper feed amount signal from the paper feed amount signal generator B, and when the continuous paper 3 is fed and reaches the paper leading edge detection device 7, a calculation start command signal is sent. is issued, the count of the paper feed amount signal pulse is initially calculated by the correction counting means to the paper feed amount corresponding to the distance between the paper leading edge detection device 7 and the cutter device 8 and the paper cutting size stored in the storage unit C. The first paper cutting command signal is issued by correcting the number of minutes, and the subsequent paper cutting command signals are normally calculated by counting the paper feed amount signal corresponding to the paper cutting size stored in the storage unit C as a counting means. The cutter device 8 is driven by counting the pulses and issuing a second and subsequent paper cutting command signal (see timing chart in FIG. 2).

At the rear stage of the paper feed tractor 6, there is a slitter 16 consisting of two upper and lower rotary teeth 16' and 16'' for slitting the marginal portions of the feed holes on both sides of the continuous paper 3.
is provided, and further downstream of the cutter device 8,
A stacker 18 is provided for receiving the cut sheets 3' into single pieces.

In addition, the cutter device 8 cuts away the stopped continuous paper 3.
This device uses a cutter whose cutting teeth 8' move up and down to cut the paper, and when a paper cutting command signal is issued and the cutter device 8 is driven, the pulse motor is immediately stopped and paper feeding is stopped. Furthermore, the pulse motor is driven a predetermined time after the paper cutting command signal is generated by the action of a timer (see timing chart in FIG. 2).

Therefore, the transport speed of the paper feed tractor 6 is
If the ejection speed of the printer 2 is set to be a little faster than the ejection speed of the printer 2, even if the printer 2 continuously ejects the continuous paper 3 without stopping, the continuous paper 3 will remain between the printer 2 and the continuous paper cutting device 1. It will never stop.

Therefore, the continuous paper cutting device 1 of this invention has the following features:
In use, the continuous paper 3 is placed on the side from which it is ejected from the printer 2, the leading edge of the continuous paper 3 is passed under the roller 10 of the tension sensing device 5, and the transport holes on both sides of the continuous paper 3 are inserted into the paper feed tractor 6. Set the paper feed pin 6' at an appropriate position, then enter the cutting size at equal intervals or a cutting size that is a combination of multiple cutting sizes from the paper cutting size setting input section 13, and start cutting continuously. Even if the paper 3 is ejected from the printer 2 at a constant speed or at an intermittent speed, the continuous paper cutting device 1
If the tension sensing device 5 does not sense a tension equal to or higher than a predetermined value, the paper feed tractor 6 sequentially feeds the continuous paper 3, slits the marginal portions on both sides by the slitter 16, and continues feeding the continuous paper 3 sequentially toward the cutter device 8.

When the continuous paper 3 reaches the paper leading edge detection device 7, a computation start command signal is issued from the computation start command signal generating section A, which causes the paper cutting instructing device 15 to trigger the counter as described above. At the first time, the paper feed amount signal is counted by the correction counting means and the first cutting signal is issued.After that, the paper feed amount signal is counted by the normal counting means and a cutting command signal is issued. When there is no slack in the continuous paper 3 between the printer 2 and the continuous paper cutting device 1, and the tension sensing device 5 detects a tension greater than a predetermined value, the pulse that drives the paper feed tractor 6 is stopped each time, and the paper feed amount signal is output. The pulse is also stopped. Then, when the sum of the number of pulses of the paper feed amount signal reaches the number of pulse counts corresponding to the cutting size, a cutting command signal is issued.

The cutter device 8 is driven in response to a cutting command signal, and the continuous paper 3 is cut into a predetermined size and the single pieces of paper are sequentially stacked on the stacker 18.

In the above embodiment, the storage unit C stores and generates a cutting size signal corresponding to the paper cutting size.
is the paper cutting size setting input section 13 in advance.
Although this setting input section 1 is input more than
However, the cutting size information is printed or attached with an output device at a predetermined position of the continuous paper using various information output means such as a mark or a magnetic signal, and the cutting size information is attached in a continuous paper cutting device. While the continuous paper is being transferred, it is read and input into the storage section C,
The cutting size signal may be generated each time.

Further, the tension sensing device may be configured so that it can detect slack in the continuous paper located between the output device and the continuous paper cutting device using an optical or mechanical sensor. In order to prevent excessive tension from being applied when the continuous paper is subsequently drawn into the continuous paper cutting device, a detection signal is sent between the output device and the continuous paper cutting device when the amount of continuous paper falls below a predetermined amount. It suffices if it can be uttered as such.

As described above, according to this invention, the continuous paper is placed on the side from which it is ejected from various output devices, and the leading edge of the continuous paper can be set on the paper feed tractor and started without the need for troublesome alignment. The paper cutting instruction device that drives the cutter device has a memory section that stores and generates a cutting size signal, so it is not possible to repeatedly cut the paper to the same size. Of course, it is also possible to continuously cut to different cutting sizes.

Also, when continuous paper is ejected from the output device,
Even if the discharge rate is intermittent,
It is possible to perform cutting work quickly without unnecessarily tearing continuous paper by continuously drawing it in or causing it to fall in places.

[Brief explanation of the drawing]

FIG. 1 is a side cross-sectional explanatory view of a continuous paper cutting device according to the invention, FIG. 2 is a timing chart showing the operating state of the continuous paper cutting device, and FIG. 3 is an explanatory diagram of a paper cutting instruction device. 1 is a continuous paper cutting device, 3 is a continuous paper sheet, 5 is a tension sensing device, 6 is a paper feed tractor, 7
Reference numeral 8 indicates a paper leading edge detection device, 8 indicates a cutter device, and 15 indicates a paper cutting instruction device.

Claims (1)

[Scope of Claim for Utility Model Registration] A continuous paper cutting device comprising a tension sensing device, a paper feed tractor, a paper leading edge detection device, and a cutter device, which are sequentially provided in the transport direction of continuous paper ejected from a printer. A cutting instruction device is provided, and the paper cutting instruction device includes a storage section that stores and generates a cutting size signal set by a paper size input section, and a paper feed amount signal that generates a paper feed amount signal in accordance with driving of a paper feed tractor. a calculation start command signal generation unit that generates a calculation start command signal based on the paper leading edge detection signal of the paper leading edge detection device; A normal counting means for counting the paper feed amount signal corresponding to the paper size signal of the section, and a paper feed amount that is the sum of the paper feed amount signal corresponding to the paper size signal and the paper feed amount signal corresponding to the distance between the cutter device and the paper leading edge detection device. and a correction counting means for counting the signal, the correction counting means starts counting the paper feed amount based on the calculation start command signal, and when the paper feed amount is counted, issues a first paper cutting command signal. The normal counter means starts counting the paper feed amount signal after cutting the paper for the first time, and when it counts the paper feed amount signal corresponding to the paper size signal, it issues a paper cutting command signal. This command instructs the drive of the cutter device from the second time onwards, and instructs the paper feed tractor to stop driving when the tension sensing device detects a tension of a predetermined value or more on the paper being received, and while the cutter device is being driven. Continuous paper cutting device with special features.