JPH0349916Y2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field The present invention relates to an X-Y plotter, and more particularly to an X-Y plotter with a copying function.

Prior Art A pen is provided with a pressing device that positions the pen at a pressing position where the pen is pressed against the recording paper during recording, and at a non-pressing position where the pen is separated from the recording paper when not recording, the pen being placed on the recording paper. An X-Y plotter is known that records line drawings by moving in the X direction and/or Y direction while pressing. It is conceivable to use such an X-Y plotter to copy the line drawing onto a recording sheet for copying that is located below the topmost sheet of recording sheets stacked in advance.

Problems to be solved by this invention However, since the pressing force of the pen against the recording paper by the pressing device is usually not so large, it is necessary to properly record the line drawing on the recording paper for copying below the top paper. In addition, it is relatively difficult to ensure sufficient pen pressure.

On the other hand, if the pressing force of the pen by the pressing device is further increased to ensure the writing pressure of the pen during copying, it becomes necessary to increase the rigidity of each member constituting the X-Y plotter. It is inevitable that the X-Y plotter will be expensive as a whole.

Means for Solving the Problems The present invention has been made against the background of the above circumstances, and its purpose is to provide an X-Y plotter that can make copies in a suitable manner at a lower cost. be. In order to achieve such an object, the present invention provides a method for recording the line drawing on the recording paper for copying, which is located below the top paper of the plurality of recording papers stacked in advance, in the X-Y plotter as described above. , further comprising a control means for controlling the pressing device so that the pen repeatedly operates at a predetermined frequency between the pressed position and the non-pressed position.

Effects of operation and invention With this arrangement, when recording a line drawing on recording paper for copying, the pressing device is controlled by the control means so that the pen is moved between the pressing position and the non-pressing position. Since the actuation is repeated at a predetermined frequency, a relatively high writing pressure can be obtained due to the impact when the pen is actuated from the non-pressed position to the pressed position. In this case, since this high writing pressure is instantaneous, there is almost no need to increase the rigidity of each member of the XY plotter. This makes it possible to
-Can be suitably copied using a Y plotter.

Embodiment Hereinafter, an embodiment of the present invention will be described in detail based on the drawings.

FIG. 2 is a diagram showing an X-Y plotter to which the present invention is applied. In the figure, the X-Y plotter 10
, a mounting table 14 for mounting the recording paper 12;
A movable table 18 that is driven and positioned in the X direction by an X-direction pulse motor 16, and a guide rod provided on the movable table 18 in a direction (Y direction) perpendicular to the moving direction (X direction) of this movable table 18. A carriage 24 is driven and positioned in the Y direction by a Y direction pulse motor 22 while being guided by a Y direction pulse motor 20. The writing pen 28 is driven in a direction perpendicular to the paper surface. A positioning plate 30 for accurately positioning the recording paper 12 at a predetermined position is fixed to the mounting table 14, and the recording paper 12 is suctioned and fixed on the mounting table 14 as necessary. Air suction means, electrostatic adsorption means, etc. are used for this purpose.

As shown in FIG. 1, in a recess 32 provided on the upper surface of the carriage 24 (the surface opposite to the mounting table 14 side), there is a support lever 34 with the pen 28 integrally fixed to one end thereof. is pin 3 at the other end.
6, it is rotatably attached. on the other hand,
A bottomed hole 38 that is further depressed from the bottom of the recess 32 is provided on the opposite side of the carriage 24 from the movable table 18 side.
6 is provided. The upper and lower solenoid 26 includes a coil 42 fixed to the bottom of the bottomed hole 38, and an iron core 44 whose one end is inserted into the coil 42 and whose other end is rotatably attached to the support lever 34 by a pin 40. , and a spring 46 that always biases the iron core 44 in the direction to pull it out from inside the coil 42 (in the direction away from the mounting table 14), and when the coil 42 is excited, the iron core 44 is pulled out inside the coil 42. When the support lever 34 is slightly rotated clockwise in FIG. 1 against the urging force of the spring 46, the pen 28 is pressed against the recording paper 12 with a predetermined pressing force. position, and when the coil 42 is de-energized, the support lever 34 is rotated counterclockwise in FIG. By returning the pen 28 until rotation in the direction is stopped, the pen 28 is separated from the recording paper 12 by a predetermined distance and placed in a non-pressing position (this position is shown in FIG. 1). Therefore, in this embodiment, the support lever 34, the upper and lower solenoids 26, etc. constitute a pressing device.

The control circuit of the X-Y plotter 10 is configured as shown in FIG.
A predetermined input signal input to the input port 56 is processed according to a program stored in advance in the ROM 54 while utilizing the storage function of 2, and a line drawing indicated by the input signal is recorded at a recording position indicated by the input signal. As shown in FIG. Output. In addition, the above CPU50
A mode changeover switch 68 for selectively selecting between the normal drawing mode and the copying mode is connected to.

In the X-Y plotter 10 configured in this way, as shown in the flowchart of FIG.
Step S1 is executed to read the input signal input to the input port 56, and step S2 is executed to calculate and store the trajectory of the pen 28 based on the read input signal. Next, step S3 is executed to determine whether the mode changeover switch 68 is in the ON state. If this judgment is negative, step S4 is executed and the normal drawing mode is selected, while the following step S5 is executed to operate the pen 28 along the trajectory calculated in step S2. The X-direction pulse motor 58 and the Y-direction pulse motor 62 are each controlled, and during recording, the upper and lower solenoids 26 are maintained in the ON state to operate the pen 28.
is positioned at the pressed position. This results in
The line drawing represented by the input signal is recorded at a predetermined recording position on the recording paper 12 while the pen 28 is pressed against the recording 12 with the predetermined pressing force.

At step S3, mode changeover switch 6
8 is in the ON state, step S6 is executed and the copy mode is selected. When this copying mode is selected, at least two sheets of recording paper 12 are stacked on the mounting table 14 in advance, and the recording paper 12 below the topmost recording paper 12 has a predetermined copying record. Paper is used. Next, by executing step S7,
As in step S5, the pen 28 is moved along the trajectory with the pen 28 in the pressed position to record a line drawing. Next, when step S8 is executed, the X-direction pulse motor 5 is activated to operate the pen 28 along the trajectory again.
8 and the Y-direction pulse motor 62 are respectively controlled, and the upper and lower solenoids 26 are controlled ON-OFF at a predetermined frequency during recording, so that the pen 28 is moved between the pressed position and the non-pressed position at the predetermined position. It is activated repeatedly at a frequency. At this time, a relatively high writing pressure is obtained due to the impact when the pen 28 is operated from the non-pressed position to the pressed position, so that the line is drawn on the recording paper 12 for copying below the uppermost recording paper 12. is suitably copied. In this embodiment, the above step S8
corresponds to the control means. When a new input signal is input to the input port 56 after normal drawing in step S5 or copying in step S8 is completed as described above, the process starts again.
S1 and subsequent steps will be executed.

In this way, according to this embodiment, the topmost recording paper 1
2, the upper and lower solenoids 26 are controlled ON-OFF at a predetermined frequency to move the pen 28 to a predetermined position between the pressed position and the non-pressed position. Since the pen 28 is repeatedly operated at a high frequency, a relatively high writing pressure can be obtained due to the impact when the pen 28 is operated from a non-pressed position to a pressed position. In this case, since this high writing pressure is instantaneous, there is almost no need to increase the rigidity of each member of the X-Y plotter 10.
Thereby, it is possible to suitably copy using the X-Y plotter 10 without making the X-Y plotter 10 expensive as a whole.

Further, according to this embodiment, even when the copy mode is selected, the line drawing is recorded on the uppermost recording paper 12 in the normal drawing mode in step S7.
This has the advantage that the image quality of the line drawings recorded on the image is good.

In the above embodiment, the line drawing represented by the input signal is drawn on the topmost recording paper 12 in the normal drawing mode.
After all the line drawings are recorded, the line drawing is copied onto the recording paper 12 for copying in a copy mode, but it is not necessarily necessary to configure it like that.
Each time a predetermined amount of drawing is done in the normal drawing mode, that portion may be copied in the copy mode.

Further, in the above-described embodiment, step S7 is not necessarily necessary and may be deleted.
In this case, a step similar to step S7 may be provided after step S8.

Further, in the above embodiment, the pen 28 is integrally fixed to the support lever 34, but this is not necessarily necessary. For example, it is possible to attach or detach a plurality of types of pens of different colors to the one end of the support lever 34. You may also attach it. In this case, when copying, the writing pen may be replaced with a specified pen-shaped member exclusively for copying, and by providing a radius suitable for copying at the tip of this pen-shaped member, writing pressure can be further increased. In addition, damage to the recording paper 12 during copying can be more effectively prevented.

In addition, various changes may be made to the present invention without departing from the spirit thereof.

[Brief explanation of the drawing]

FIG. 1 is an enlarged view showing a main part of a cross section taken along the line - in FIG. 2. FIG. Figure 2 shows X-Y to which this invention is applied.
FIG. 3 is a plan view of the plotter. Figure 3 shows the X-
FIG. 3 is a diagram showing a control circuit of a Y plotter. FIG. 4 is a flowchart for explaining the operation of the X-Y plotter of FIG. 2. 10...X-Y plotter, 12...recording paper, 2
6... Upper and lower solenoids (pressing device), 28... Pen, 34... Support lever (pressing device).

Claims (1)

[Claims for Utility Model Registration] A pen, and a pressing device that positions the pen at a pressing position where it is pressed against a recording paper during recording, and at a non-pressing position where it is separated from the recording paper when not recording; While pressing the pen against the recording paper,
In an X-Y plotter that records a line drawing by moving it in the direction and/or the Y direction, when recording the line drawing on a recording paper for copying that is below the topmost paper among a plurality of recording papers stacked in advance, An XY plotter characterized in that the XY plotter is provided with a control means for controlling the pressing device so that the pen repeatedly operates at a predetermined frequency between the pressed position and the non-pressed position.