JPS621599A - X-y 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 [Field of Industrial Application] The present invention relates to an X-Y plotter that uses a large number of pens interchangeably, and particularly relates to the presence/absence and identification of these large number of pens.

[Conventional technology]

Conventionally, an optical sensor is generally used to detect the presence or absence of a pen or to identify a pen.

The sensor is installed at a position where it can detect the presence or absence of the pen and the type of the pen.A detection area and a non-detection area are selectively provided in the detection area of the optical sensor of the pen, and a malfunction occurs in the non-detection area. Non-reflective tape is attached to prevent this.

[Problems to be Solved by the Invention] As described above, in the conventional device, a variety of non-reflective tapes or the like must be applied to the optical sensor detection area of the pen for each pen, which reduces work efficiency.

The present invention is intended to improve this point.

[Means for solving problems]

For this reason, in the present invention, the non-detection portion of the pen has an uneven reflection shape.

[Effect]

By forming the diffused reflection shape in this way, manual tape application work can be omitted, and work efficiency can be improved accordingly.

〔Example〕

FIG. 1, FIG. 2, and FIG. 3 are configuration explanatory diagrams showing one embodiment of the present invention.

1, 2, and 3, 1 is an X-Y plotter, 2 is a recording surface, 3 is a recording pen drive mechanism, 4 is a carriage, 5 is a recording pen, and 6 is a storage pen holder.

First, an X-Y plotter employing the present invention will be explained with reference to FIG.

This X-Y plotter 1 has a storing part pen holder 6 that stores a plurality of recording pens 5 and a moving part pen holder 41 installed on a carriage 4.
will be automatically replaced. The carriage 4 freely moves on the recording surface 2 to obtain desired recording.

The presence or absence of the recording pen 5 in each pen holder of the storage pen holder 6 is detected by an optical sensor provided as a pen presence/absence detection sensor 32 at the end of the Y bar 31 on the side of the storage pen holder 6.

The existence and identification of the recording pen 5 held in the movable pen holder 41 is detected by two optical sensors provided as pen presence/absence type sensors 36 and 37 (see FIG. 3) on the movable pen holder 41 of the Y bar 31. Ru.

FIG. 3 shows the mounting state of these sensors in detail, and is a front view of the Y-bar 31 viewed from the storage pen holder 6 side.

A pen presence/absence detection sensor 32 for detecting the presence or absence of a pen in the storage pen holder 6 is provided at the center of the Y bar 31, and pen presence/absence type sensors 36 and 37 for detecting the presence or absence of a pen in the movable pen holder 41 and its type are provided in the Y bar 31. It is placed on top of the bar 31.

FIG. 2 is an explanatory diagram showing an example of the recording pen 5 detected by these sensors 32, 36, 37. In FIG. 2, the recording pen 5 is held in one pen holder of the housing pen holder 6. In FIG.

The pen presence/absence detection sensor 32 mentioned above is opposite to the magnetic band portion 51 of the recording pen 5, and the pen presence/absence type sensor 36,37
is opposed to the head 52. The head 52 of the recording pen 5 selectively has a diffused reflection shape with unevenness as a non-detection area. In the embodiment of the present invention shown in FIG. 2, the upper half of the head 52 has a diffusely reflective shape. Based on the detection outputs of the pen presence/absence type sensors 36 and 37, the presence/absence of a pen and pen identification are possible as shown below.

Sensor 36 Sensor 37 Output of detection result Output 0 0 No pen 0
1 1st pen 1 0
Second Pen 1 1 Third Pen In this way, the two sensors 36 and 37 can detect the presence or absence of a pen and identify three types of pens.

[Effects of the Invention] As explained above, according to the present invention, since the irregular reflection shape of uneven reflection is adopted as the non-detection area of the optical sensor, there is an advantage that manual work such as pasting of non-reflective tape etc. can be eliminated. .

[Brief explanation of drawings]

FIG. 1, FIG. 2, and FIG. 3 are configuration explanatory diagrams showing one embodiment of the present invention. 5-5 Self-Record Ben, 52- Pen U Publishing Department No. 211! a525[[S 35 wire

Claims (1)

[Claims] An X-Y plotter in which a large number of pens are exchanged and the presence or absence and type of the pens are detected by an optical sensor, characterized in that the non-detection shape in the optical sensor detection area of the pen is a diffused reflection shape with an uneven shape. X-Y plotter.