JPS5987198A - Multi-pen xy plotter - 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 The present invention relates to a multi-pen XY plotter that performs recording while appropriately exchanging a plurality of recording pens.

Generally, a cartridge-type pen in which an ink tank and a pen tip are integrated is often used in this persimmon multi-pen X-Y plotter. However, such pens always have the problem of recording failure due to drying of the pen tip. That is, if the pen is left unused for a long time, the pen tip will dry out, and the next time you try to use the pen, ink will come out and you will not be able to record. In addition, to solve this problem, some pens are kept in the pen storage section with a cap on the nib to prevent the pen from drying out when it is not in use. However, it is not possible to put a cap on the pen attached to the Benn carriage, and if the pen is left attached to the Benn carriage without drawing commands for a long time, the pen tip will dry out. If you do this, you will not be able to record anything.

The present invention eliminates the drawbacks of the conventional device as described above, and even when there is no drawing command for a long time and no recording is performed,
The object of this invention is to realize a multi-pen X-Y plotter that can prevent the pens attached to the Ben carriage from drying out using a simple 41 structure.

The multi-pen X-Y plotter of the present invention is a multi-pen X-Y plotter in which the pen tips are capped in the pen storage section, and when there is no long-term plotting command and no lN8 recording is performed, This system memorizes the 21 marker and pen number of the pen attached to the pen carriage in advance, then returns it to the pen storage compartment and caps the pen tip to prevent it from drying out. ,
When a drawing command is issued later and recording is restarted, the pen selection and recording start position are determined based on the previously stored coordinates and pen number. Note that sequences such as detection of recording stop time and pen storage operation are preset in the control circuit section.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The multi-pen X-Y plotter of the present invention will be described below with reference to the drawings.

The figure is a configuration diagram showing an embodiment of a multi-pen X-Y plotter of the present invention. In the figure, PL is a mechanical part of the plotter, and CNT is a control circuit part.

In the mechanism part PL, CR is a carriage, Ml, M
2 is a motor that moves the carriage CR in the X-axis and Y-axis force directions, Pl-P4 is a pen, and PS is a pen storage section.

The figure shows a state in which the pen P4 is attached to the carriage CR. In addition, the control circuit portion CNT is composed of a microprocessor, and the CPU is a precalculation processing circuit,
IF is an interface that takes in drawing No. 48 SD applied from the outside, and DRl and DR2 are motors Ml.

The drive circuit that drives M2 is a storage circuit.

In the multi-pen X-Y plotter constructed as described above, when a plotting signal SD is applied from an external device such as an old calculator, the control circuit fjlI and CNT are connected to the interface IF.
This drawing signal SD is taken in via the motor M1 . Convert to M2 drive signal. In the mechanism portion PL, the drive circuits DR1 and DR2 drive the motors M1. M2
is driven, carriage CR moves, and pens P1 to P
4 is selectively taken out, and recording is performed in accordance with the plotting signal SD. Here, in the pen storage part PS, the cap joint 16 operates together with the storage of the pens P1 to P4.
It is equipped with a cap that automatically caps the nib of the stored pen to prevent the nib from drying out.

Now, in the recording operation as described above, if the drawing signal SD is not applied again even after a certain period of time has passed after the drawing signal SD is interrupted or terminated, the control circuit part CNT outputs the coordinates of the pen at that time and the pen number. (Here, P
4), and generates a drive signal for the motor MIM2 so as to store the pen P4 at a predetermined position in the pen storage section PS.

In addition, in such a stopped state, drawing No. 48 SD
When is applied, the control circuit part CNT returns the pen (P4) to the coordinates when recording was stopped based on the coordinates and pen number stored in the memory circuit quantity, and starts drawing fEJ No. SD from that position. Start recording accordingly.

Here, the detection of the recording stop time as described above is performed using the counter function of the arithmetic processing circuit CPU, etc., and the generation of drive signals for such timing operations and pen storage and return operations, etc. is prestored in the memory circuit MM as a fixed sequence that starts when recording stops.

In this way, when the plotting signal SD is temporarily interrupted or terminated and no recording is performed for a long time, the carriage CR is
If you return the currently stored pen to the temporary pen storage part PS, the pen's tip will be capped in the pen storage part PS, regardless of the length of the recording stop time.
It can prevent the pen tip from drying out.

In addition, in the above, when the pen is returned to the temporary pen storage part PS, its coordinates are memorized and the original coordinates are restored when recording is resumed. This is an effective method when expressed in the form of relative coordinates based on the pen position. Furthermore, the length of time when the drawing signal SD is not applied before the pen is returned to the storage part PS is determined depending on the type of pen, etc., and the shorter the time, the better for the pen. It can be set to any length.

As explained above, in the multi-pen X-Y plotter of the present invention, in which the pen tip is capped in the pen storage part, there is no long-time drawing command, etc., and recording is performed. If not, write down the coordinates of the pen attached to the pen carriage and the pen number in advance, and then return it to the pen storage section, and when a drawing command is issued later, , the pen is selected and the recording start position is determined based on the coordinates and pen number stored in advance, and then recording is restarted, so there are no long drawing commands, etc., and recording can be performed quickly. Multi-pen X-Y that can prevent the pens attached to the Ben carriage from drying out even when
A plotter can be realized with a simple configuration.

[Brief explanation of drawings]

The figure is a configuration diagram showing an embodiment of a multi-pen X-Y plotter of the present invention. PL...mechanical part, CR...carriage, Ml,
M2...Motor, PI~P4...Pen, PS・
・・Pen storage part, CNT ・・Control circuit part, CP
U...Arithmetic processing circuit, IF...Interface, DRI, DR2...Drive circuit, U...Memory circuit. -c

Claims (1)

[Claims] In a multi-venn X-Y plotter in which the pen tip is capped in the pen storage section, the plotting command is held for a certain period of time.
If recording is not performed because there is no such thing, the coordinates and pen number of the pen attached to the pen carriage at that time are memorized in advance, and the pen is temporarily stored in the pen storage section, and a drawing command is applied later. Multi-pen -Y plotter.