JPH0358871A - Automatic cutter for page printer - Google Patents

Abstract

PURPOSE:To make it possible to cut recording paper at the perforation without stopping the recording paper by providing a pair of timing rollers under a pair of feeding rollers. CONSTITUTION:When perforation to be cut on recording paper 15, which is fed with a designated speed, is about to pass a central spot between a holding member 6 and cutter member 7, a cut signal is emitted, and timing rollers 4 stop first. Then, a pair of the holding members 6 and a pair of the cutter members 7 respectively press the recording paper 15. Then, the cutter members 7 oscillate with pins, which are located at the end parts of the cutter members 7 and are vertical to the surface of the paper, as oscillating shafts, and the paper 15 is cut at the perforation. After this cutting, the cutter members 7 oscillate to the original positions, and both members 6, 7, which have been pressing the paper 15, separate from the paper 15, and the timing rollers 4 resume the rotation again.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an automatic cutter device for a page printer.

[Conventional technology]

Generally, in a page printer that prints by supplying recording paper that has been folded in advance along perforations and stored in a paper storage box to a predetermined paper path, the section from one perforation of the recording paper to the next perforation. is called a page, and the information given for each page is printed. For example, if the information up to page n and the information after page n+1 are used differently, the recording paper is cut off from the perforation at the rear end of page n. Due to this necessity, an autocutter device has been used for this purpose. The conventional auto cutter main body 20 has a fourth
As shown in the figure, the page printer 29 is placed on a base 26 and separately placed on an auxiliary base 28. Recording paper 36 discharged DI from an ejection port 34 attached to the page printer 29 is supplied to the supply roller 21 through a guide 35, passes through a cutter 22 and a guide 23, and is stored in a stacker 25 from the ejection port 24. Ru.

[Problem to be solved by the invention]

In the above-mentioned conventional auto-jnotter device, the paper transport distance from the fixed point of the drum of the separately installed page printer to the cutter is not constant, so the distance from the first perforation at the start of the recording paper to the cutting point of the cutter is not constant. It is necessary to set the distance in advance in the controller and then finely adjust the set length each time. Furthermore, when cutting the perforation at the end of the desired page with a cutter, the entire recording paper must be stopped for a moment. As a result, for example, the recording paper is
If the cutting frequency is high, such as in the case of page cutting, the loss of one person due to the cumulative downtime becomes a problem, leading to a decrease in the performance of the page printer. Furthermore, since the cutter uses a blade, there is a problem with durability depending on the number of cuts, and when recording paper such as cardboard or tag paper is used, a large amount of power is required when cutting, resulting in wear of the cutting edge. There are problems in that cutting errors tend to occur frequently and repair time is required to stop the page printer and replace the cutter.

SUMMARY OF THE INVENTION An object of the present invention is to provide an automatic printer which eliminates these problems, does not stop the recording paper, and does not use a knife.

[Means to solve the problem]

The automatic cutter device for a page printer of the present invention includes a supply roller that supplies recording paper, and a system that selectively stops supplying the paper to the next process while sandwiching the recording paper supplied from the supply roller from both sides. A pair of timing rollers, a pair of pressing members that sandwich the recording paper sent out from the timing rollers from both sides and selectively press/relax, and press the pressing members. A pair of pressurized recording paper sheets, which are pressed at the same time by sandwiching a slightly lower portion of the pressed recording paper from both flll+, and which are supported so as to be pivotable about a bottle placed on one side of the lower pressing portion. a cutter member, a timing roller driving device for stopping and changing the speed of the timing roller, a driving device for pressing and relaxing the presser member and the cutter member, respectively, with respect to the recording paper; , the cutter member is on the opposite side from the pin, with the pin as a pivot shaft}
The present invention is characterized in that it includes a drive facility for continuous operation, and a cut signal transmitting device for instructing the operation of each of the drive facilities Oii'iW.

[Effect]

When the perforation to be cut on the recording paper being fed at a constant speed is about to pass through the midpoint between the presser member and the cutter member, a cut signal is issued and the timing roller first stops.

Next, the pair of presser members and the pair of cutter members each press the recording paper. Next, the cutter member is swung using a swinging lever that is located at the id portion of the cutter member and is perpendicular to the paper surface, and the paper is cut from the perforation. Cut m IJ, the cutter member moves 1:z to the original position: 19,
Next, both of the members that were pressing the paper are released from the paper,
The timing mouth roller starts rotating again. For a certain period of time after the start of this rotation, the rotation speed of the timing roller is set higher than the rotation speed of the supply roller, and when the curvature of the paper that had occurred between the two rollers disappears, the speed of the timing roller is supplied. It is set to be equal to the speed of 〇ra. Note that the folding direction of the first sheet after cutting is front-fold. Back 1
Which of h should be specified is indicated in advance by a mark on the paper, and based on this, the folding direction switching plate is operated in response to an instruction from the page blink controller. Then, the paper is stored in the stacker as specified. Timing schedules for the operation of each member, from the first cut to the time of signal transmission, are all set in advance. Constant supply even during cutting [+-
The speed of the laser is constant, and the cutting work is systematically interrupted.
Moreover, there is no use of cutlery in the cutting process, resulting in malfunctions and
The frequency of repairs is also significantly reduced.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

Figure 1 (a), (b), (c). (d) is a vertical sectional view showing the operating state of an embodiment of the automatic cutter device of the present invention;
Figures 2(a) and 2(b) are diagrams showing the operation of the folding direction switching plate 8 before, during, and after cutting when cutting is not involved in step 5.
are the front view of Figure 1(a) and Figure 1(c), respectively.
The figure is a side view showing the structure of a page printer 9 incorporating the printer shown in FIG. 1(a).

The main parts of the automatic printer O of this embodiment include a pair of supply rollers 1 that continuously receive the recording paper 15 and supply it to the next process, and a pair of supply rollers 1 that continuously receive the recording paper 15 and supply the paper 15 to the next process. A pair of timing rollers 4 that receive and selectively operate and stop the paper 15 to advance and stop the paper 15, and press or relax the paper 15 from both sides immediately after the paper 15 supplied from the timing rollers 4 stops. A pair of presser members 6
The presser member 6 suppresses or relaxes the slightly forward portion of the paper 15 pressed by the presser member 6, and is swingable about the bin 7a, which is located on the side of the front portion and is perpendicular to the paper surface, as a support shaft. It consists of a pair of cutter members 7 and a pair of folding direction switching plates 8 for switching and guiding the folding direction of the paper 15.

A motor (not shown) for driving the roller 1 is provided at the end of the supply row 51. Near the bottom of the row 51, a J-shaped guide 2 and a guide 3 for guiding the recording paper 15 to the timing roller 4 are arranged. This is for guiding the paper 15 inside so as to curve it in one direction. A motor 4a is provided on the side of the timing roller 4 for driving and stopping the roller 4 at at least two speeds. A mark 17 on a recording paper 15, which will be described later, is detected at one lower end of the timing roller 4.
Photosensor for sending cut signals to the controller {J
5 is provided, and then a pair of rod-shaped presser members 6 and cutter members 7, each having a substantially rectangular cross section and a length longer than the width of the paper 15, sandwich the paper 15 in parallel with the width direction of the paper 15. , are always arranged at positions equally spaced apart from the paper 15, and have the function of simultaneously pressing/relaxing the paper 15 from both sides in response to one signal. Note that this pressing/relaxing driving means is not shown. At one end of the cutter member 7, a bottle 7a passes through the left and right cutter members 7 at right angles to the surface of the paper 15 and is supported by the main body of the apparatus. The cutter member 7 is rotatably mounted with a pin 7a as a drive shaft, and a motor 7b for the rotation is provided on the side opposite to the pin 7a. Furthermore, below the cutter member 7, a pair of rectangular plate-shaped folding direction switching plates 8 whose horizontal length is longer than the width of the paper 15 are arranged on both sides of the paper 15 parallel to the paper 15. , are attached so as to be able to swing freely relative to the device main frame 0 using a total of four pins 8a attached horizontally to the top of both end faces as fulcrums, and swing in the direction according to the signal to move the paper 15. This is to indicate the first fold after cutting as front fold or reverse fold. The moke 8b, lever 80, etc. for this swinging are provided on the side of the folding direction switching plate 8.

Next, the operation of this embodiment will be explained.

FIG. 1(C) and FIG. 2(a) show a state in which the recording paper 15 is set and there is no need to cut the paper 15, and the rotational speed of the supply row 51 is V1cm/sec and the rotational speed of the timing roller is V2u/sec. The seconds are equal, and the pair of presser members 6. Both of the pair of ivy members 7 are slightly separated from the paper 15.

FIG. 1(b) shows a state in which the paper 15 is pressed in preparation for cutting the paper 15. In the figure, the following words (not shown) from the controller of the page printer 9
This causes the timing roller 4 to stop, that is, V2=O
), then the presser member 6 and the forceter member 7 simultaneously press the paper 15 in the direction of the arrow by a driving means (not shown).At this time, the supply roller 1 continues to rotate at the rotational speed IffV+. There is.

Next, FIGS. 1(C) and 2(a) show the cutter 11 in operation, which is the purpose of this apparatus. In the figure, after t1 seconds after the pressing member 6 and the cutter member 7 press the paper 15, the pair of force cutter members 7 are moved to the pin 7a by the drive motor 7b.
The paper 15 is rotated at the same time with the drive shaft as the perforation 16.
Cut off the top and bottom from one end. At this time as well, the supply roller 1 is rotating at a rotational speed of 1 cm/sec, and the paper 15 is curved toward the straight-shaped guide 2 by +II+. Therefore, the paper 15
To cut paper 15 along perforations 16 without stopping the paper.

After cutting, the timing roller 4 starts rotating after the time t2 seconds required for the pair of cutter members 7 to return.
The rotation speed of the timing roller 4 is V2al+/ during the time t3 seconds until the curved portion of the paper straightens after the start of rotation.
The second is set to be much larger than the rotation speed of the supply roller 1, which is 1 cm/sec. Yogi 15 recovers immediately, speed v2
Fig. 1(d) shows the state in which the velocity is equal to the velocity v1.
During this time, the drive motor 8b is activated by a command (not shown) to determine whether the perforation 16 is "front fold" or "real fold" from the page printer 9, and the pair of folding direction switching plates 8 is
It is set to swing to state (I) or state (I [I) with the pin 8a as a fulcrum, and return to state (I) t3 seconds after the timing roller 4 starts rotating again.

Regarding the above-mentioned cut signal, in this embodiment, a fixed distance I from the position of the perforation 16 of the paper 15 to be cut
! ! If the mark 17 is printed tL1cm in front, and the distance from the midpoint between the presser member 6 and the cutter member 7 to the 7 photosensor 5 is L2cm, then the mark 17 is detected by the sensor υ5 (L2 +12). A cut signal g is issued from a controller (not shown) so that the timing roller 4 stops after /V+ seconds.

As a second embodiment, a photo sensor (not shown) is provided in the main body of the page printer 49 instead of in the auto cutter device aO to detect the mark 17 of the first embodiment or another line, Then, after t5 seconds, the timing roller drive device and other drives are all driven in the same way! l] One possible method is to issue a cut signal to the device.

As a third embodiment, it is also conceivable to provide the controller of the page printer 9 with information regarding the paper-specific cut position in advance without providing the automatic sensor 5, and to issue a cut signal at a timing corresponding to this information.

(Effects of the Invention) As explained above, the present invention provides a pair of timing rollers below a pair of supply rollers, thereby making it possible to cut the recording paper from the perforation without stopping the recording paper. Since no cutlery is used in the part, there are problems with the lifespan and poor cutting due to blade wear. - Since the information is erased, the performance of the auto cutter can be improved.

[Brief explanation of drawings]

Figure 1(a). (b). (C). (d) is a longitudinal cross-sectional view showing the operating state of an embodiment of the automatic cutter device of the page printer of the present invention, in which the recording paper 15 is
Figures 2(a) and 2(b) are diagrams showing the operation of the folding direction switching plate 8 before cutting, during cutting, and after cutting, respectively, when cutting is not concerned. 17) Front view,
FIG. 3 is a side view showing the configuration of a page printer 9 incorporating the present embodiment, and FIG. 4 is a side view showing the configuration of a conventional O'r-jj ivy printer 20 and a page printer 29. . O... Auto cutter device, 1.21... Supply roller, 2... J-shaped guide 3.23.35... Guide, 4... Timing roller, 4a, 7b, 8b --- -E--1, 5... Photo sensor, 6... Pressing member, 7... Cutter member, 7a, 8a... Bin, 8... Folding direction switching plate, 8C... Lever 9 .29...Page printer, 10.30...Photosensitive drum, 11.31...Hopper, 12.32...Tractor, 13.33...Fixing section, 14.25...Scooker, 15.36...Recording paper, 16...Perforation, 17...Mark, 20...Auto cutter device main body, 22...Cutter, 24.34...Publishing outlet-ra, 26. ... Base, 28 ... Supplementary rule base, 37 ... Perforation position mark. Special: 1'1 ~ Applicant NEC Office Systems Co., Ltd.

Claims (1)

[Scope of Claims] 1. In an automatic cutter device for a page printer that cuts recording paper having perforations for cut-off lines, a supply roller that supplies the recording paper and a recording paper that is fed from the supply roller is sandwiched from both sides. A pair of timing rollers that selectively stop supplying the paper to the next process and recover from a delay in supply at the time of the stop; and a pair of timing rollers that sandwich the recording paper sent out from the timing rollers from both sides and selectively press/press the paper. A pair of relaxing presser members and a slightly lower portion of the recording sheet pressed by the presser members are sandwiched from both sides, and simultaneously pressed, and a pin located on one side of the lower presser is pivoted. a pair of cutter members that are swingably supported as support shafts; a timing roller driving device for stopping and changing the speed of the timing roller; and pressing and relaxing the presser member and the cutter member with respect to the recording paper, respectively. drive equipment and recording paper for
The apparatus further includes: a drive facility located on the opposite side of the pin for swinging the cutter member using the pin as a pivot shaft; and a cut signal transmitting device for instructing the operation of each of the drive facilities, etc. Features an automatic cutter device for page printers.