JPS61132397A - Automatic drawing method - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an automatic drawing method in which a predetermined drawing is made by controlling the movement of a drawing head with respect to a drawing surface based on an output signal from a controller. The feature is that a recording pen is used to draw thin lines and thick lines on the drawing surface.

[Conventional technology]

The XY motor is driven in response to the XY coordinate signal from the controller, and by driving the XY motor, the printing head, which holds the recording pen so that it can be raised and lowered, is moved relative to the drawing surface at a constant distance. In an automatic drawing machine, in which a predetermined drawing is drawn on the drawing surface by moving the recording pen up and down with respect to the drawing surface using the controller, there is a conventional method for drawing thick lines and thin lines. , a plurality of recording pens with different thicknesses of pen tips are prepared, and a desired recording pen is automatically selected from among the plurality of recording pens.

A plurality of recording pens may be held in a drawing head as shown in Japanese Patent Publication No. 56-20997, or held in a pen stocker on the table side as shown in Japanese Patent Application Laid-open No. 59-194899. There are some configurations.

[Problem that the invention seeks to solve]

When changing the thickness of the line drawn by replacing the recording pen mentioned above, it is necessary to prepare a large number of recording pens with different thicknesses of pen nibs, which increases costs and requires pen replacement every time the wire diameter is changed. However, there was a drawback in that it took a long time to create one drawing.

The present invention aims to eliminate the above-mentioned defects.

[Means to solve problems]

In order to achieve the above object, the present invention drives an XY motor in response to a motor drive command signal from a controller, and
Driven by a motor, the drawing head that holds the recording pen movably up and down is moved relative to the drawing surface while maintaining a constant interval, and the controller moves the recording pen up and down with respect to the drawing surface. In an automatic drawing method in which a predetermined drawing is performed on the drawing surface by controlling, after the drawing head is moved in a fixed direction with respect to the drawing surface to create a predetermined line, the center position of the drawing head is By shifting the line by a predetermined amount and drawing a line adjacent to and parallel to the above line, a thick line consisting of multiple lines is formed, and thin lines and thick lines are drawn separately on the drawing surface with the same recording pen. This is what I did.

[Effect]

In the above configuration, by drawing a plurality of lines adjacent to each other, it is possible to draw a thick line with a wire diameter that is an integral multiple of that of only one line without changing the recording pen.

〔Example〕

The structure of the present invention will be described below with reference to embodiments shown in the accompanying drawings.

In FIG. 1, reference numeral 2 denotes the body of an automatic drafting machine, on which a Y rail 6 is arranged so as to be moved in the direction of the X coordinate axis by the drive of an X motor 8. 10 is connected to the Y rail 6 by the drive of the Y motor 12.
It is a drawing head disposed to move along a rail 6, and the head 10 is provided with a pen holder I6 whose movement is controlled in the vertical direction by a pen up/down solenoid 14. A recording pen 18 is supported. As the recording pen 18, a commercially available hollow pen, recording pen with built-in lead core, ballpoint pen, felt-tip pen, or other pen can be used. The XY motors 8, 12 and the solenoid 14 are connected to the driver 22.24.
It is connected to a controller 20 consisting of a microcomputer.

In the above configuration, the controller 20 outputs an XY motor drive command pulse, drives the XY motors 8 and 12, and moves the print head 10 in a predetermined direction along both paper surfaces on the table 4, that is, the drawing surface. . On the other hand, the controller 20 outputs a pen down command signal to the driver 24, drives the solenoid 14, and moves the pen holder 16 to the table 4.
The recording pen 18 is lowered to the surface and the tip of the recording pen 18 is brought into contact with the drawing surface.

A line 26 is drawn in a predetermined direction on the drawing surface by the interaction between the movement of the drawing head 10 in the X and Y coordinate axis directions and the downward movement of the recording pen 18.

Next, shift the drawing head 10 from the position where the line 26 was drawn in the XY coordinate axis direction by an amount equal to the line width of the line 26, and in this shifted state, from the starting end of 4% 26 to the terminal end, or from the terminal end to the starting end. The drawing head 10 is moved parallel to the line 26 to draw a line 26a adjacent to the line 26. These two lines 26
．． 26a forms a thick line 28 that is twice as thick as a single line. In this way, by drawing a single line, a thick line consisting of two adjacent lines, or a thick line consisting of three adjacent lines on the drawing surface, you can change the recording pen to draw lines with different diameters. It is designed to draw directly on the drawing screen.

〔effect〕

As described above, in the present invention, by slightly shifting the center position of the drawing head, multiple lines are drawn adjacently, and these multiple lines draw a single thick line as a whole. This has the advantage that lines with different diameters can be quickly drawn without having to prepare a plurality of recording pens with different diameters.

[Brief explanation of drawings]

FIG. 1 is an overall plan view of the automatic drafting machine, FIG. 2 is an explanatory block circuit diagram of the automatic drafting machine, and FIG. 3 is an explanatory diagram. 2... Aircraft, 4... Table, 6...
Y rail, 8...X motor, 10...printing head, 12...Y motor, 14...
...Solenoid, ]6...Pen holder, 18
...recording pen, 26.26a...line. 28...Thick line

Claims (1)

[Claims] 1. An XY motor is driven in response to a motor drive command signal from a controller, and by driving the XY motor, the drawing head that holds the recording pen so that it can be raised and lowered is moved at a constant position with respect to the drawing surface. In the automatic drawing method, the recording pen is moved relative to the drawing surface while maintaining an interval of After drawing a predetermined line by moving in the direction relative to the drawing surface, the center position of the drawing head is shifted by a predetermined amount and a line is drawn adjacent to and parallel to the line, thereby creating a plurality of lines. An automatic drawing method characterized in that a thick line consisting of is formed, and the thin line and the thick line are drawn separately on the drawing surface using the same recording pen.