JPH0314314Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a cutter device for cutting long sheets of paper, and in particular for cutting continuous paper with perforations along both sides of the perforations. The present invention relates to a cutter device suitable for cutting a long sheet of paper provided with cutting point indications along the cutting point indications.

BACKGROUND TECHNOLOGY A conventional cutter device of this type consists of a pair of upper and lower blades, and the upper blade is moved up and down relative to the lower blade, as disclosed in, for example, Japanese Utility Model Application No. 59-162258. Then, it is cut off.

Problems to be Solved by the Invention With the conventional cutter device as described above, for example, when cutting continuous paper with perforations at the perforations, it is difficult to accurately cut over the perforations. Since it would look unsightly if the perforation remained on the cut piece of paper, the paper was cut twice before and after the perforation. Therefore, it is necessary to perform the cutting operation twice for each cutting location, which is extremely inefficient.

Conventionally, such double cutting is required not only when cutting continuous paper with perforations, but also when there is some kind of indication on the long paper as the cutting point, such as a printed cutting instruction mark. This may occur in situations where it would be inconvenient for these markings to remain on the cut piece of paper.

The object of the present invention is to provide a cutter device that does not require the inefficient double-cutting operation described above.

Means for Solving the Problems The present invention provides a conveying means such as a tractor for conveying a long sheet of paper, a conveying means such as a tractor, which extends perpendicularly to the conveying path of the long sheet of paper, and is arranged at appropriate intervals, e.g. A pair of long blades are arranged parallel to each other with an interval that can sandwich the cut point indication such as a perforation line provided in a long sheet of paper, and these long blades work together to cut the long sheet of paper. The two rotary blades rotate and move along the long blades, and the conveying means is controlled to stop the transported long paper at a predetermined position relative to the long blades, and It is composed of a control section that drives and controls the rotary blade.

Function A pair of long blades and two rotary blades working together cut both sides of a predetermined part of a long sheet of paper, for example, both sides of a cut point such as a perforation, in one cutting operation. disconnect.

Embodiments Hereinafter, a preferred embodiment in which the present invention is applied to a cutter device that cuts continuous paper discharged from a printer of an electronic computing device along both sides of perforations will be described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic side sectional view of the entire cutting device including a cutter device, FIG. 2 is a schematic rear view of the cutter device, FIG. 3 is a side sectional view showing the main parts of the cutter device, and FIG. The figure is a schematic diagram of a paper cutting instruction device.

In FIG. 1, a cutting device 2 for continuous paper 1 is
Located on the side from which the continuous paper 1 is ejected from the printer 3 of the electronic computing device, in order in the transport direction of the continuous paper 1, there are a tension device 4, a paper feed tractor 5 as a transport means having a paper feed pin 5a, and a pair of upper and lower rollers on both sides. A slitter 6 having rotary blades 6a and 6b for slitting the marginal portions on both sides of the continuous paper 1, a paper leading edge detection device 7, a cutter device 8, and a stacker 9 for receiving the cut paper 1a into single pieces are provided. The driving force for the paper feed tractor 5 is obtained from a pulse motor 10, and the driving force for the cutter device 8 is obtained from a pulse motor 11.

The tension device 4 is configured such that an arm 13 having a roller 12 attached to its tip rotates within a predetermined range around a fulcrum 14, and reaches its upper limit rotation position (the position shown by the broken line in FIG. 1). When it reaches , it is detected by the switch 15. The continuous paper 1 discharged from the printer 3 is drawn into the paper feed tractor 5 through the underside of the rollers 12, and the continuous paper 1 is removed from slack between the printer 3 and the paper feed tractor 5. When tension is applied, the roller 12 is lifted upward, the arm 13 reaches its upper limit position, and the switch 15 is activated.
detects this and issues a stop signal to the pulse motor 10, and the conveyance of the continuous paper 1 is stopped.

When the leading edge of the continuous paper 1, which has been sent by the paper feed tractor 5 and whose marginal portion has been slit by the slitter 6, is detected by the paper leading edge detection device 7, the detection signal is sent to a paper cutting instruction device which is a control unit. Sent to 16th. The paper cutting instruction device 16
As shown in FIG. 4, there is a computation start command signal generator 16a which issues a computation start command signal upon receiving the detection signal, and a paper feed amount signal of the paper feed tractor 5 in response to the pulse signal P given to the pulse motor 10. a paper feed amount signal generating section 16b that emits;
It has a storage section 16c that stores and generates a cutting size signal corresponding to a desired cutting size (usually the distance between each perforation) inputted in advance from the paper cutting size setting input section 17. When a calculation start command signal is issued from the calculation start command signal generation section 16a, the cutting size signal in the storage section 16c is compared with the paper feed amount signal in the paper feed amount signal generation section 16b in response to this signal, and both signals are When the two match, a paper cutting command signal is issued to the pulse motor 11 of the cutter device 8 to drive the cutter device 8.

However, the paper cutting instruction device 16 has a correction counter that sets the paper feed amount signal pulse to the distance between the paper leading edge detection device 7 and the cutter device 8 when the first calculation start command signal in the cutting operation is issued. It is configured to count and calculate the paper cutting size and issue a paper cutting command signal.

The cutter device 8 includes a pair of long blades 18 that extend perpendicularly to the conveyance path of the continuous paper 1 and are arranged in parallel with each other at an interval so as to be located on both sides of the perforation of the continuous paper 1. 19, and two rotary blades 20 that rotate and move along the long blades 18, 19 in order to cut the continuous paper 1 in cooperation with the long blades 18, 19.

Next, details of the cutter device 8 will be explained based on FIGS. 2 and 3.

The long blade 18 is bolted onto a fixing block 22 that is screwed to a hollow support frame 21 with a triangular cross section that is fixed to the machine frame of the cutting device 2. The fixed block 22 is sandwiched between the rotary blade 20 and the rotary blade 20.
bolted to the side of the The cutting surface of the long blade 19 is set slightly below that of the long blade 18, and is always biased in the direction of the long blade 18 by the elastic force of the urethane rubber 23 disposed between it and the bolt head. The two rotary blades 20 are pressed in the direction of the long blade 18. The two rotary blades 20 are each formed into a thin ring shape, and are attached to a support body 2 having a U-shaped cross section.
4, which is rotatably supported by the rotary shaft 25, is bolted at a predetermined interval to the enlarged diameter portion of one end of the rotating shaft 25, and is held by a bifurcated control member 26 screwed to the support body 24. Continuous paper 1
Positioning in the transport direction is performed.

The support body 24 has slits 6 of sliders 27 that have a U-shaped cross section and are arranged perpendicularly to each other.
Fixed on one side. The slider 27
is slidably supported at its hanging portion by a pair of guide rods 28 and 29 extending perpendicular to the transport direction of the continuous paper 1, and a switch input piece 30 is fixed to the opposite side of the fixed end of the support 24. has been done. Further, the slider 27 is provided with a drive drum 32 supported coaxially with a driven pulley linked to the drive pulley of the pulse motor 11 via a belt 31, and supported via each idler pulley 33, 34, 35. Both ends of the wire 36 are fixed. Therefore, when the pulse motor 11 is driven, the wire 36 is moved in a predetermined direction by the corresponding rotation of the drive drum 32, and the slider 27 is moved in the horizontal direction in FIG. Micro switches 37 and 38 are disposed at the ends of the movement path of the switch input piece 30 of the slider 27, respectively, and when these micro switches 37 and 38 are turned on by the switch input piece 30, a pulse is generated. The motor 11 is configured to stop.

On the other hand, a wire drum 39 is pinned to the rotating shaft 25, and a wire 40 is wound around the wire drum 39. Both ends of the wire 40 are attached to springs 41 and 42 fixed to the machine frame via idler pulleys, respectively. Therefore, as described above, slider 2
7 moves, the wire drum 39 rotates so as to unwind the wound wire 40 in the advancing direction, and the two rotary blades 20 together with the rotating shaft 25
The blades also rotate in the same direction and move along the corresponding long blades 18 and 19, respectively. Along the moving path of the wire drum 39, a long hinge 43 having a presser piece 43a for clamping the continuous paper 1 during cutting is screwed to a cover 44 fixed to the machine frame. The holding piece 43a is normally urged upward by the elastic force of a spring (not shown) to allow the continuous paper 1 to pass, but when a paper cutting command signal is issued to the pulse motor 11,
When the wire drum 39 rides on the wire drum 39, it resists the urging force and becomes the state shown in FIG. 3, thereby clamping the continuous paper 1 and making it easy and reliable to cut it.

Note that when the paper cutting command signal is issued and the cutter device 8 is operated, the pulse motor 10 is temporarily stopped, and the continuous paper 1 is cut while the conveyance of the continuous paper 1 is stopped. Further, due to the action of a timer, a drive signal is given to the pulse motor 10 after the cutting operation of the continuous paper 1 is completed.

Therefore, if the transport speed of the paper feed tractor 5 is set to be slightly faster than the ejection speed of the printer 3, even if the printer 3 continuously ejects the continuous paper 1, the speed between the printer 3 and the paper feed tractor 5 will be reduced. The continuous paper 1 will not be unnecessarily delayed in between.

Next, the operation of this embodiment will be explained.

First, the leading edge of the continuous paper 1 discharged from the printer 3 is passed under the rollers 12 of the tension device 4, and the transport holes on both sides of the continuous paper 1 are set on paper feed pins 5a at appropriate positions of the paper feed tractor 5. do. Next, the paper cutting size setting input section 17
After inputting the cutting size corresponding to the perforation interval, the pulse motor 10 of the cutting device 2 is driven. Continuous paper 1 is delivered from printer 3 at a constant speed.
Alternatively, if the continuous paper is being ejected intermittently and the tension device 4 does not sense a tension higher than a predetermined value, the paper feed tractor 5 continues to feed the continuous paper 1, slits the marginal portions on both sides with the slits 6, and then It is sent sequentially toward the cutter device 8. Then, when the continuous paper 1 reaches the paper leading edge detection device 7, a computation start command signal is issued from the computation start command signal generation unit 16a, and the paper cutting instructing device 16 receives the cutting size signal from the storage unit 16c. , starts comparison calculation with the paper feed amount signal pulse from the paper feed amount signal generator 16b. During this calculation, whenever there is no slack in the continuous paper 1 between the printer 3 and the paper feed tractor 5 and the tension device 4 senses a tension greater than a predetermined value, the drive pulse signal P to the pulse motor 10 is stopped each time. Therefore, the generation of the paper feed amount signal also stops at the same time. Then, when the sum of the pulses of the paper feed amount signal reaches a pulse count corresponding to the cutting size, a cutting command signal is issued.

Upon receiving this cutting command signal, the pulse motor 10
is stopped, while the pulse motor 11 of the cutter device 8 is driven, the slider 27 moves in a predetermined direction, and the wire drum 39 rotates and moves in the same direction. Therefore, the holding piece 43a clamps the continuous paper 1, and the two rotary blades 20 rotate and move along both long blades 18, 19, so that the continuous paper 1 is cut at the perforation line, which is a predetermined cutting position. is cut on both sides. Here, 2
Since the rotary blades 20 are thin and have elasticity, even if the distance between the long blades 18 and 19 is slightly narrower than the distance between the rotary blades 20, they rotate smoothly and cut well. Ru. When the cutting is completed and the slider 27 reaches the predetermined position, the corresponding micro switch 37 or 38 is turned on.
At the same time as the pulse motor 11 is stopped, the clamping of the continuous paper 1 by the holding piece 43a is also released.

Then, the pulse motor 10 is driven again, and the above-described operation is repeated. The sheets 1a that have been cut into single pieces are sequentially stacked on a stacker 9.

In the above-mentioned embodiment, the rotary blade 20 is composed of two thin blades that are independent of each other, and one blade is provided so as to correspond to each of the long blades 18 and 19.
The mounting portion may be integrally thick, and only the cutting edge portion may be composed of two blades corresponding to the long blades 18 and 19, respectively. Further, the configuration in which the rotary blade 20 is rotated and moved is not limited to the above-described configuration in which the wires 36 and 40 are attached to the slider 27 and the wire drum 39, respectively. Furthermore, each pulse motor 1 serving as a drive source
In addition to the above-mentioned paper cutting instruction device 16, the control section for controlling the paper cutting instructions 0 and 11 can be modified in various ways. Furthermore, the cutting point indication may be a printed continuous line, a broken line, or a cutting instruction mark in addition to perforations. Furthermore, it goes without saying that the present device can also be used to cut long sheets of paper that do not have cut point markings that would spoil the appearance.

Effects As is clear from the above explanation, according to the present invention, both sides of unnecessary perforations and cutting indications such as cutting instruction marks can be cut at the same time, so long sheets of paper can be cut into single pieces of the desired size. In addition to being able to cut and remove unnecessary parts in an extremely stylish and efficient manner, the two-blade design is lightweight and rotates smoothly.

[Brief explanation of drawings]

The figures show preferred embodiments of the present invention, in which Figure 1 is a schematic side sectional view of the entire cutting device equipped with the cutter device according to the present invention, Figure 2 is a schematic rear view of the cutter device, FIG. 3 is a side sectional view showing the main parts, and FIG. 4 is a schematic diagram of the paper cutting instruction device. 1... Continuous paper, 2... Cutting device, 4... Tension device, 5... Paper feed tractor, 8... Cutter device, 16... Paper cutting instruction device, 18,
19...long blade, 20...rotary blade, 27...slider, 39...wire drum, 43a...presser piece.

Claims (1)

[Scope of utility model registration request] a transporting means for transporting a long sheet of paper; a pair of long blades extending perpendicularly to the transport path of the long sheet of paper and arranged parallel to each other with appropriate intervals; two rotary blades that rotate and move along the long blades to cut the paper; and the conveying means is controlled to stop the transported long paper at a predetermined position relative to the long blades. Furthermore, a long paper cutter device comprising a control section that drives and controls the rotary blade.