JPH0321910Y2 - - 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 ART Conventional cutter devices of this type consist 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. 162258/1983. 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 cut accurately 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 cutting a long sheet of paper with some kind of indication, such as a printed cutting instruction mark, as the cutting point. 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 extends in a direction perpendicular to the direction of conveyance of the long sheet of paper, and is provided at appropriate intervals, for example, intervals that can be used to indicate cutting points such as perforations provided in the long sheet of paper. , and a pair of long blades arranged parallel to each other, and a spacing adjusting member such as a washer, which is thin and elastic, and cooperates with the long blades to cut the long paper. A pair of blades arranged in parallel to face each other so that the distance between the opposing surfaces is slightly wider than the distance between the long blades, and resiliently and reliably contact each of the long blades, while rotating and moving. It consists of a rotating blade.

Function A pair of long blades and a pair of rotary blades that move while rotating in contact with these blades are used to 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. Cut with two cutting movements.

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 where 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 sensing device 4, a paper feed tractor 5 having a paper feed pin 5a, and a pair of upper and lower rotary blades on both sides. A slitter 6 including 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 sensing device 4 has a roller 12 at its tip.
An arm 13 to which is attached is configured to rotate within a predetermined range around a fulcrum 14,
When the upper limit rotation position (broken line state position in FIG. 1) is reached, it is detected by the switch 15. printer 3
The continuous paper 1 discharged from the roller 12 is drawn into the paper feed tractor 5 through the underside of the rollers 12, and the continuous paper 1 is tensioned between the printer 3 and the paper feed tractor 5 so that the slack in the continuous paper 1 is eliminated. When the force is applied, the roller 12 is lifted upward and the arm 13 reaches its upper limit position, the switch 15 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 that 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 the paper cutting instruction device 16. It will be done. As shown in FIG. 4, the paper cutting instruction device 16 includes a calculation start command signal generating section 16 that generates a calculation start command signal upon receiving the detection signal.
a, a paper feed amount signal generator 16b which receives a pulse signal P given to the pulse motor 10 and generates a paper feed amount signal for the paper feed tractor 5; is the distance between each perforation)
It has a storage section 16c that stores and generates a cutting size signal corresponding to the cutting size signal. 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 and the paper feed amount signal in the paper feed amount signal generation section 16b are compared and calculated in response to this signal. If they match, the paper cutting command signal is sent to the pulse motor 1 of the cutter device 8.
1 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 and 19 that extend in a direction perpendicular to the transport direction of the continuous paper 1 and are arranged parallel to each other at an interval so as to be located on both sides of the perforation of the continuous paper 1. A pair of thin disc-shaped rotary blades 2 having elasticity for cutting the continuous paper 1 in cooperation with these long blades 18 and 19.
0,21. These rotary blades 20,2
1 is spaced so that the distance between the opposite surfaces is slightly wider than the distance between the long blades 18 and 19 so that the opposite surfaces elastically and reliably contact the long blades 18 and 19. The long blades 18,
19 while rotating and moving.

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 23 screwed to a hollow support frame 22 with a triangular cross section fixed to the machine frame of the cutting device 2, and the long blade 19 is attached to the fixing block 23. 23
bolted to the side of the Each of the rotary blades 2
0 and 21 are connected to each other at one end of a rotating shaft 26 rotatably supported by a support 25 having a U-shaped cross section with a washer 24 interposed therebetween.
flange 27 and clamp collar 28 fixed to
It is fixed to the flange 27 and the clamp collar 28 with three screws while being held between them. The washer 24 allows the distance between the opposing surfaces of the pair of rotary blades 20 and 21 to be adjusted so that the opposite surfaces of the pair of rotary blades 20 and 21 can elastically and reliably contact the respective long blades 18 and 19, as described above. Each long blade 18,
The interval is set to be slightly wider than the interval of 19.

The support body 25 is a slider 2 having a U-shaped cross section.
9 is fixed to the slit 6 side. The slider 29 has a pair of guide rods 30, 3 extending perpendicularly to the conveyance direction of the continuous paper 1 at its hanging portion.
1 and is slidably supported by the support body 25.
A switch input piece 32 is fixed on the opposite side from the fixed end. The slider 29 also includes a drive drum 34 supported coaxially with a driven pulley linked to the drive pulley of the pulse motor 11 via a belt 33, and idler pulleys 35, 36, 37.
Both ends of the wire 38, which is passed over the wire 38, are fixed. Therefore, when the pulse motor 11 is driven, the wire 38 is moved in a predetermined direction by the corresponding rotation of the drive drum 34, and the slider 29 is moved in the horizontal direction in FIG. Micro switches 39 and 40 are arranged at the ends of the movement path of the switch input piece 32 of the slider 29, respectively, and when these micro switches 39 and 40 are turned on by the switch input piece 32, a pulse is generated. The motor 11 is configured to stop.

On the other hand, a wire drum 41 is mounted on the rotating shaft 26.
The wire drum 41 is fixed at a corresponding position to the support body 25, and a wire 42 is wound around the wire drum 41. Both ends of the wire 42 are attached to springs 43 and 44 fixed to the machine frame via idler pulleys, respectively. Therefore, when the slider 29 moves as described above, the wire drum 41 rotates to feed out the wound wire 42 in the advancing direction, and the rotary blade 2
0 and 21 rotate in the same direction together with the rotating shaft 26 and move while elastically contacting the long blades 18 and 19. Along the moving path of the wire drum 41, a long hinge 45 having a presser piece 45a for clamping the continuous paper 1 during cutting is screwed to a cover 46 fixed to the machine frame. The holding piece 45a 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, the wire When the drum 41 rides on the drum 41, it resists the biasing force and enters 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 sensing device 4, and the transport holes on both sides of the continuous paper 1 are inserted into paper feed pins 5a at appropriate positions of the paper feed tractor 5. Set. Next, a cutting size corresponding to the perforation interval is input from the paper cutting size setting input section 17, and then the pulse motor 10 of the cutting device 2 is driven. When the continuous paper 1 is continuously or intermittently discharged from the printer 2 at a constant speed, the paper feed tractor 5 continues to feed the continuous paper 1 unless the tension sensing device 4 senses a tension greater than a predetermined value. , the marginal portions on both sides are slit using the slit 6, and then fed into the cutter device 8 one after another. And continuous paper 1
When it reaches the paper leading edge detection device 7, a calculation start command signal is issued from the calculation start command signal generation unit 16a, and the paper cutting instruction device 16 receives the cutting size signal in the storage unit 16c and the paper feed amount signal generation unit 16a. Comparison calculation with the paper feed amount signal pulse from section 16b is started. 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 sensing 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 29 moves in a predetermined direction, and the wire drum 41 rotates and moves in the same direction. Therefore, the holding piece 45a clamps the continuous paper 1, and the pair of rotary blades 20, 2
1 moves while rotating while elastically contacting each long blade 18, 19 due to its elasticity,
The continuous paper 1 is cut on both sides of the perforation line, which is a predetermined cutting position. When the cutting is completed and the slider 29 reaches the predetermined position, the corresponding micro switch 39 or 40 is turned on, the pulse motor 11 is stopped, and the continuous paper 1
The clamp by the holding piece 45a 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.

Note that the present invention is not limited to the above-mentioned embodiments, and for example, the distance adjusting member interposed between the pair of rotary blades 20 and 21 may be such that the cutting edges of the rotary blades 20 and 21 are aligned with the pair of long blades 18 and 19. Any material can be used as long as it can be in contact with each other reliably, and a rubber plate, a spring, etc. can also be used, and the material is not limited to the washer 24. Moreover, a pair of rotary blades 20, 2 of the interval adjustment member
The intervening state for 1 is not only a mere pinching state, but also
It may be in an adhesive state or may be provided integrally with one of the rotary blades 20, 21. moreover,
The rotary blades 20 and 21 are not limited to thin disc-shaped blades having elasticity, and the structure in which the rotary blades 20 and 21 are rotated and moved is also possible by using wires on each of the slider 29 and the wire drum 41 described above. 38 and 42 are attached. Furthermore, the means for controlling the pulse motors 10 and 11, which are the drive sources, can be modified in various ways other than the above-mentioned embodiment. Furthermore, the cutting point may be indicated by a printed continuous line, a broken line, or a cutting command 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 points that would spoil the appearance.

Effects As is clear from the above description, 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, making it possible to cut continuous paper into single pieces. In addition to making it possible to remove unnecessary parts in an extremely stylish and efficient manner, the pair of rotary blades can be reliably in contact with the long blades due to the interposition of the spacing adjustment member, which prevents each rotary blade from being worn out. The blade can always maintain contact with the long blade, making it possible to perform smooth cutting operations over a long period of time.
Each rotary blade can have a number of beneficial effects, such as changing the contact surface with the long blade, thereby making it possible to further extend the service life.

[Brief explanation of the drawing]

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 sensing device, 5... Paper feeding tractor, 8...
...Cutter device, 18,19...Long blade, 20,2
1... Rotating blade, 24... Washer, 29... Slider, 41... Wire drum, 45a... Presser piece.

Claims (1)

[Scope of utility model registration request] In a cutter device that stops transported long paper at a predetermined position and then cuts it, a pair of cutter devices are used, which extend perpendicularly to the direction of transport of the long paper and are arranged parallel to each other with an appropriate interval. It comprises a long blade and a pair of rotary blades that cut the long paper in cooperation with the long blades, and the pair of rotary blades are provided via a spacing adjustment member. A long paper cutter device.