JPH0640195A - Method of cutting roll paper in plotter - Google Patents

Abstract

PURPOSE:To cut neatly the edge of a cut separation part of roll paper. CONSTITUTION:A cutter pen 2 is moved upward, and shifted to the cut-starting point A which is put into the central direction of the roll paper 4 from one edge of a plotting part 4a at a predetermined distance. Then, the cutter pen 2 is moved downward, in order to cut the paper continuously of a predetermined position B slightly spaced apart from the outside of the roll paper 4 from one edge. Next, the cutter pen 2 is move upward so as to be returned to the cut starting point A, and after the cutter pen 2 is moved downward, it is shifted along the cut position L toward the other edge of the plotting part 4a in the roll paper 4, and thus, cutting is effected continuously of a predetermined position C on the extended line of the cut position L.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for cutting roll paper in a plotter.

[0002]

2. Description of the Related Art A paper drive type plotter is known which is capable of exchanging a writing pen and a cutter pen with one drawing head for drawing and cutting. In this type of plotter, when roll paper is used, after drawing (or cutting) one frame, as shown in FIG.
With the cutter pen 2 held by the drawing head, roll paper 4 all at once from one edge of the paper to the other edge.
Is cut in the width direction (Y direction).

[0003]

[Problems to be Solved by the Invention] When cutting the above-mentioned paper, the blade 6 of the cutter pen 2 may be caught on the paper 4 at the edge 6 at the start of cutting, and the edge 6 may float, so that the paper 4 can be cut cleanly. There was nothing. The present invention aims to eliminate the above defects.

[0004]

In order to achieve the above object, the present invention mounts a roll paper pull-out portion on a paper placing member, and relatively moves the head relative to the pull-out portion in the XY axis directions. In a plotter in which the drawn area of the drawer is separated from the undrawn area by the cutter held by the head after the predetermined drawing is performed on the drawer by the pen held by the head The operation of separating the drawn area of the paper drawer from the unprinted area is performed by moving the cutting position of the boundary between the drawn area and the unprinted area of the drawer in the uniaxial direction across the paper placing member of the cutter. The step of matching the locus and the cutting position in which the cutter is raised by a predetermined distance from one edge of the drawer portion in the central direction of the roll paper in a state where the cutter is raised. Moving to a cut start point on a line, lowering the cutter and moving the cutter along the line of the cutting position toward one edge of the drawer of the roll paper, and cutting the drawer. A first cutting step of cutting from a start point to a predetermined position on an extension line of the cut position slightly outward of the roll paper from the one edge, and raising the cutter to bring the cutter to the cut start point. After returning the cutter and lowering the cutter at the cut start point, the cutter is moved along the line of the cutting position toward the other edge of the drawer portion of the roll paper to move the drawer portion from the cut start point to the other edge. A second cutting step of cutting to a predetermined position on an extension line of the cutting position slightly apart from the edge of the roll paper to the outer side of the roll paper; It is obtained by al configuration.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention will be described below in detail with reference to the embodiments shown in the accompanying drawings. In FIG. 3, reference numeral 8 is a sheet driving type plotter, and a sheet placing member, that is, a platen 12 is supported by a machine body 10. A drawer portion 4a for the roll paper 4 is placed on the platen 12, and the drawer portion 4a is gripped on the platen 12 by a pinch roller mechanism including a driving roller and pressure rollers 14,14.

The roll portion 4b of the roll paper 4 is detachably supported by a roll paper supply means 16 arranged at the rear of the machine body 10. 18 is a Y installed on the airframe 10.
It is a rail on which the drawing head 20 is attached.
It is connected so as to be movable along.

A pen stocker storage portion 22 is provided in the machine body 10, and a pen stocker (not shown) disposed in the storage portion 22 and the head 20 mutually write with a writing pen 24 or It is configured so that the cutter pen can be replaced. The cutter pen is shown in FIG.
As shown in, the double-edged cutter pen 2 or the rotary single-edged cutter pen 26 is used.

The double-edged cutter pen 2 has directivity in two directions. The rotary single-edged cutter pen 26
It has a directional property in only one direction, but the blade 2
8 can rotate freely, and the direction of the blade 28 is automatically changed according to the moving direction of the cutter pen 26.

At the time of drawing, the pull-out portion 4a of the roll paper 4 is moved to the platen 12 by driving the pinch roller mechanism.
The head 20 is sent in the front-rear direction (X direction), and the head 20 is sent in the Y direction along the Y rail 18.

Further, the pen holding portion 30 of the head 20 is controlled to move up and down, and the writing pen 24 held by the pen holding portion 30 abuts or separates from the drawer portion 4a of the roll paper 4 on the platen 12, and Predetermined drawing is performed on the drawer portion 4a.

The drive unit of the pinch roller mechanism, the drive unit of the head 20, the lift drive unit of the pen holding unit 30, and the rotation drive unit of the roll paper supply means 16 are configured to be controlled by the controller of the plotter. There is. 32
Is an operation panel of the controller.

Next, the paper cutting operation of the plotter will be described with reference to the flow chart shown in FIG. When the controller confirms that the plotting operation of the plotter is completed (step 1),
Next, the controller drives the pinch roller mechanism,
The drawer portion 4a of the raw paper 4 is drawn to the front of the platen 12, and the cutting position L set at the boundary between the drawn area D of this drawer portion 4a and the undrawn area N is set along the Y rail 18 of the pen 2. Match the movement path. (Step 2).

Next, the controller judges whether or not the head 20 holds the cutter pen 2 (step 3), and if the judgment is negative, the controller shifts to a pen replacement operation (step 4). By this replacement operation, the pen holding unit 30 of the head 20 holds the cutter pen 2.

Next, the controller moves the cutter pen 2 to the roll paper 4 while raising the cutter pen 2.
A predetermined distance (20 to 50 mm) from one edge of the sheet 4 is located immediately above the cut start point A, which is one point on the cut position L line moved toward the center of the sheet 4 (step 5).

Next, the controller lowers the cutter pen 2 and drives the head 20 toward one edge of the roll paper 4 to cut the roll paper 4 between A and B in FIG. 2 (step 6). ).

Next, at the point B, the controller raises the cutter pen 2 and moves the head 20 toward the center of the roll paper 4 to move the cutter pen 2 to the cut start point A.
Back to step 7).

Next, the controller lowers the cutter pen 2 at the cut start point A, drives the head 20 toward the opposite edge of the roll paper 4, and causes the cutter pen 2 to move between points A and C. The roll paper 4 is cut (step 8). The points B and C are set on the extension axis of the cut position L on the roll paper 4, which is slightly apart from both edges of the roll paper 4 to the outside.

[0018]

Since the present invention is configured as described above, there is an effect that the edge portion of the paper or the like can be cut cleanly when the printed area of the paper or sheet of the paper drive type plotter is separated from the unprinted area.

[Brief description of drawings]

FIG. 1 is a flowchart.

FIG. 2 is an explanatory diagram.

FIG. 3 is an external view of a plotter.

FIG. 4 is a front view of a pen.

FIG. 5 is an explanatory diagram of a conventional technique.

[Explanation of symbols]

 2 Cutter pen 4 Roll paper 6 Edge 8 Plotter 10 Machine body 12 Platen 14 Pressure roller 16 Supplying means 18 Y rail 20 Head 22 Pen stocker storage section 24 Writing pen 26 Cutter pen 28 Blade 30 Pen holding section 32 Operation panel

Claims (1)

[Claims] 1. A drawer for roll paper is placed on a paper placement member, and the pen is held by the head by controlling relative movement of the head in the XY axis directions with respect to the drawer. After performing the predetermined drawing on the plotter, in the plotter that cuts the drawn area of the drawer from the unprinted area with the cutter held by the head, separates the drawn area of the drawer of the roll paper from the unprinted area. A step of matching the cutting position of the boundary between the printed area and the unprinted area of the drawer part with the movement path of the cutter in the uniaxial direction across the paper placing member; and the state of raising the cutter. And a step of moving the cutter to a cut start point on a line of the cut position which is located at a predetermined distance from one edge of the drawer and enters the center of the roll paper The cutter is lowered to move the cutter toward one edge of the roll paper drawer along the line of the cutting position, and the drawer is moved slightly from the cut start point to the one edge of the roll paper. A first cutting step of cutting to a predetermined position on an extension line of the cutting position distant to the outside, and raising the cutter to return the cutter to the cut start point, and lowering the cutter at the cut start point After that, the cutter is moved along the line of the cutting position toward the other edge of the roll paper drawer portion, and the drawer portion is slightly separated from the cut start point to the outside of the roll paper from the other edge. A roll paper cutting method comprising a second cutting step of cutting to a predetermined position on an extension line of the cutting position.