JPH0671838B2 - Cutting control method for roll paper for drawing - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a control method for cutting an image-forming roll paper into image-forming areas in an automatic drafting machine equipped with a cutting device.

[Conventional technology]

In FIG. 5, reference numeral 2 indicates a position of a paper feeding unit that pushes the roll paper 4 between the rollers to feed it in a predetermined direction, and 6 indicates a paper cutting position. In the state of FIG. 5A, the controller is started and a predetermined drawing is performed in the drawing area E on the table of the paper 4. After the completion of the first drawing, the CPU of the controller calls the paper feed data a, n from the ROM or the RAM based on the chart feed command for paper feed written in the ROM. Here, a is the paper feed amount, and n is the paper cut signal. There is a cut when n = 1,
No cut is specified when n = 0. In response to the command a = a1, n = 1, the controller drives the motor to move the roll paper 4 by a1 mm in the feeding direction (Fig. 5B). As a result, one end side 4a of the first effective drawing area of the sheet 4 is cut along the cutting execution line 6
Located on top. Next, the controller determines whether or not the automatic drafting machine is an option with a cutter, and if it is equipped with a cutter, cuts the paper 4 (Fig. 5B). next,
When a = a2 and n = 0 are specified, the sheet 4 moves a2 mm and stops (FIG. 5C). This completes one sheet feeding process.
Next, a predetermined drawing is performed on the second drawing area of the paper 4. When this drawing process is completed, the paper is first moved in the a1mm feed direction by the same operation as above by designating a = a1, n = 1 (FIG. 5D), and after cutting the paper, a = When a2, n = 0 is specified, it moves in the a2mm feed direction and stops (Fig. 5e). The a1 mm is the distance between the paper feeding direction side end of the effective drawing area E of the automatic drafting machine and the paper cutting execution position 6, and the a2 mm is the entire length of the effective drawing area E, that is, one sheet after cutting. When the total length of the sheet of paper is lmm, it is set to the value of (lmm-a1mm).
a2 is stored in the RAM of the controller.

[Problems to be solved by the invention]

In the state of FIG.
When = 1 is designated, the first image-formed area of the paper 4 is cut from the middle portion, and the portion becomes unusable.

The present invention aims to eliminate the above defects.

[Means for solving problems]

In order to achieve the above object, the present invention rotatably supports roll paper on one side of a table, provides roll paper feeding means on the other side of the table, and provides paper cutting means on the paper feeding side of the feeding means. In the device configured to supply the roll paper onto the table by driving the roll paper feeding means, after completion of drawing the roll paper on the table to the drawing area,
After moving in the feeding direction by a distance corresponding to the distance b between the one end on the paper feeding direction side and the paper cutting position and cutting one end of the drawing area by a cutting command, the roll paper is moved in the feeding direction of the drawing area. If the cutting presence / absence command is added to the paper feed command, the paper is moved in addition to the specified paper feed amount, and the paper is moved in the feed direction a1 corresponding to a value obtained by subtracting b from the total length l. It is arranged such that the distance b is sent.

[Action]

Therefore, if the cutting command is added to the paper feed command,
In addition to the designated feed amount, the cutting instruction is always executed after the paper is fed by the distance b, so that the printed area of the paper is not erroneously cut from the intermediate portion.

[Embodiment] The configuration of the present invention will be described in detail below with reference to an embodiment shown in the accompanying drawings.

In FIG. 3, 10 is a table of an automatic drafting machine, and a machine body 12 on one side of the table 10 has a core body 14 around which roll paper is wound.
Shafts 16 and 18 for detachably supporting the shaft are rotatably supported. A tension shaft 20 is rotatably supported by the machine body 12, and a guide shaft (not shown) is rotatably supported below the tension shaft in contact with the shaft 20. Reference numeral 22 denotes a feed drive roller rotatably supported on a machine body 24 on the other side of the table 10, and a pinch roller shaft having a pinch roller 26 fixedly mounted on the machine body 24 is rotatably supported on the machine body 24. ing. The roller 22 is linked to the output shaft of a motor 28. The rollers 22 and 26 and the motor 28 constitute a paper feeding means. Reference numeral 30 denotes a cutting device composed of a rotary cutter rotatably arranged on the machine body 24, and has a drive motor.
It is linked to 32. Reference numeral 34 is a Y rail, and 36 is an image forming head, which are driven in the XY direction of the table 10 by an XY motor 38. The XY motor 38, the cutter drive motor 32, the paper feed motor 28, and the writing tool lifting solenoid 40 built in the head 36 are connected to the output end of a controller 42 composed of a microcomputer, and drawing data is input to the input end of the controller 42. The output host computer 44 is connected. A sheet feed control program, which will be described later, is written in the ROM of the controller 42.

In the above-mentioned configuration, first, the roll paper is manually fed out from the core body 14, placed on the table 10 through the tension shaft 20 and the guide shaft, and the leading end of the roll paper is set to the roller 2
The roll paper 46 is sandwiched between the rollers 22 and 26 by inserting the roll paper 46 between them (FIG. 1A). Then the controller 42
Then, a predetermined drawing is performed in the drawing area on the table 10 of the paper 46. After the completion of the first drawing, the controller 42 calls the paper feed data a, n from the ROM or RAM based on the chart feed command CF for paper feed written in the ROM. Where a is the paper feed amount,
n is a paper cut presence / absence signal. There is a cut when n = 1,
No cut is specified when n = 0. The controller drives the motor 28 by the command of a = 0, n = 1, and the roll paper 46,
Move bmm in the feed direction (Fig. 1B). This is based on a program set so that if n is specified, bmm paper is fed in addition to the designated paper feed amount. As a result, the one end side 46 a of the first effective drawing area of the paper 46 is located on the cutting execution line 48. Next, the controller 42 determines whether or not the automatic drafting machine is an option with a cutter, and if it is equipped with a cutter, cuts the paper 46 (FIG. 1B). Next, only a = a1 is specified, and the paper is
Move a1mm and stop (Fig. 1C). This completes one sheet feeding process. Next, a predetermined drawing is performed on the second drawing area of the paper 46. When this drawing process is completed,
By the same operation as the above process by specifying = 0, n = 1, the paper first moves in the bmm feed direction (Fig. 1D), and after cutting the paper, a1mm is specified by only a = a1.
It moves in the feeding direction and stops (Fig. 1E). Bmm above
Is the edge of the effective drawing area of the automatic drafting machine in the paper feed direction.
It is the distance between 50 and the paper cutting enforcement position 48.
mm is set to the value of (lmm-bmm), where lmm is the total length of the effective printing area, that is, the total length of one sheet after cutting, and these values a1 and b are stored in the RAM of the controller. ing. The CPU of the controller 42 always loads the paper regardless of whether n = 1 when n is specified or n = 0.
bmm Set to move in the feed direction. Therefore, in FIG. 1, even if n = 1 is erroneously specified in C, the paper is moved by bmm and transits to the state of d, so that the dead space d is generated in the paper.
The e part of the drawing area of is not cut.

If a and n are omitted, R of controller 42
The paper is set to be fed by the distance 1 written in AM or ROM. In the present invention, as described above, when both the paper feed amount (a) and the paper cut presence / absence signal (n) are designated, the paper moves by the length of a plus bmm. The above movement is carried out in both cases of n = 0 and n = 1. Therefore, as shown in FIG. 1B, the paper feed amount a must be zero in order to feed the paper b with the paper cut presence / absence signal (n). When a = 0 and the paper cut presence / absence signal (n) is added, the paper moves not by zero but by b.

〔effect〕

According to the present invention, as described above, when a sheet of paper is sent by a controller command after performing a one-step drawing on the roll paper, first, one end of the effective printed area of the paper moves to the cutting execution position by about b. , The first step of cutting the paper at the position and the second step of feeding the paper until the next drawing area of the paper is located in the drawing area of the automatic drafting machine are set, so that the paper is not wasted for each effective printing range. Can be cut,
In addition, even if the cutting instruction is erroneously specified in the second step, the paper is set so that it is always fed as much as the above b, so that there is no fear of cutting the middle part of the printed area of the paper. Exists.

[Brief description of drawings]

FIG. 1 is an explanatory diagram, FIG. 2 is a flowchart, FIG. 3 is a plan view, FIG. 4 is a block explanatory diagram, FIG. 5 is a conventional plan explanatory diagram, and FIG. 6 is a flowchart thereof. 10 …… table, 12 …… machine, 14 …… core, 16,18 …… shaft, 20 …… tension shaft, 22 …… feed drive roller, 28 ……
Motor, 30 ...... Cutting device, 32 ...... Drive motor, 34 ...... Y rail, 36 ...... Drawing head, 38 ...... Motor, 40 ...... Solenoid, 42 ...... Controller

Claims (1)

[Claims] 1. A roll paper is rotatably supported on one side of a table, a roll paper feed means is provided on the other side of the table, and a paper cutting means is provided on a paper feed side of the feed means. In the device configured to supply the roll paper onto the table by driving the roll paper, after the completion of drawing the roll paper on the table in the drawing area, the roll paper is connected to one end of the drawing area on the paper feeding direction side and the paper. After moving in the feeding direction by a distance corresponding to the distance b from the cutting position and cutting one end of the drawing area by a cutting command, the roll paper is subtracted by b from the total length 1 of the drawing area in the feeding direction. When the paper cut command is added to the above-mentioned paper feed command, in addition to the specified paper feed amount, The control method of drawing paper roll, characterized in that it has to send about the interval b.