JPH0223432Y2 - - Google Patents

Description

[Detailed Description of the Invention] -Field of Industrial Application- The present invention relates to improvements in plotting machines such as multi-pen XY plotters, and particularly to a cleaning device for the hollow ink pens used.

-Prior Art- As is well known, in multi-pen type XY plotter devices used for computer graphics, etc.,
A felt pen, a ballpoint pen, a hollow ink pen, etc. are prepared in the pen storage part, and one of these pens is held in a pen cartridge depending on the purpose of drawing. When using the XY plotter, it is necessary to use an extremely fine hollow ink pen with a line width of 0.1 to 0.3 mm.

By the way, with such ultra-fine hollow ink pens, if paper dust or foreign matter adheres to the nib while writing, or if the nib tends to dry out, the ink will solidify on the nib, causing irregular lines. It may become blurred, the line width may become irregular, or it may become impossible to write at all. For this reason, conventionally, after completing a certain amount of drawing with a pen cartridge, drawing is sometimes stopped and the pen tip is wiped with cleaning paper to remove paper dust and condensed ink attached to the pen tip. Cleaning tends to stain the recording paper on which you are drawing, and the work itself requires skill, so there are problems such as the pen tip not being sufficiently cleaned, and some lines becoming blurred if cleaning is delayed. I'm awake.

-Purpose of the invention- In view of the above-mentioned problems in cleaning the conventional hollow ink pen nib, the purpose of the invention is to automatically or manually clean the pen nib during drawing with a drawing machine. It is possible to get cleaning equipment.

-Structure of the invention- To summarize the invention for achieving this purpose, in a drawing machine that draws by holding a hollow ink pen in a pen cartridge, a hollow ink pen held by the pen cartridge is placed outside or within the effective drawing screen area. A cleaning station is provided in which the ink pen can be moved, and a pair of cleaning rollers are provided in the cleaning station, in which the pen tip can enter the contact position and can rotate in at least one direction about the respective axes. The proposed method is to forcibly pull out the bent tip that has been inserted in the direction in which both rollers cannot rotate.

-Embodiments- Hereinafter, details of embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a plan view of a multi-pen type XY plotter device according to the present invention. A paint cartridge 2 that is sent in the Y direction is supported, and the positions of the paint cartridge 2 in the X and Y directions are determined based on an address signal from a computer, for example, and an image is recorded in an effective screen area γ shown by a virtual line. .
A storage section 5 in which a plurality of recording pens 4 are stored is provided in an area outside the effective screen area γ of the plotter main body 3, and predetermined recording pens are stored in the pen cartridge 2 based on a program corresponding to the storage location. Pick up 4 and record it.

Further, according to the present invention, a cleaning station 6 is provided at a predetermined position of the plotter main body 3 outside the effective screen area γ, and the hollow ink pen 4A is operated by the pen cartridge 2 in a cleaning mode that is switched during plotting or manually. The tip 4a is returned to the cleaning station 6 to be cleaned.

FIGS. 2 and 3 show details of the cleaning station 6, in which a pair of parallel vertical shafts 8 and 9 are fixed to a horizontal mounting plate 7, and cleaning rollers that roll in contact with each other are attached to these vertical shafts 8 and 9. 1
0 and 11 are rotatably supported. These cleaning rollers 10 and 11 are made of felt, sponge rubber, soft resin, etc., and wipe off paper dust and the like from the pen tip 4a that is pressed between them. That is, in the case of this embodiment, the pen tip 4a of the hollow ink pen 4A is moved horizontally in the cleaning mode from a direction perpendicular to the plane of the paper in FIG. 3 to position A in FIG. will be moved in a direction perpendicular to the plane of the paper. Therefore, the pen tip 4a is attached to the cleaning rollers 10, 11.
During the forced upward movement of the pen tip 4a, which is the direction in which the cleaning rollers 10 and 11 do not move,
Paper dust, coagulated ink, etc. from the pen tip 4a are wiped off by cleaning rollers 10 and 11.

4 and 5 show another embodiment of the present invention, in which a pair of horizontal support shafts 8A, 9A are fixed to a vertical mounting plate 7A. Cleaning rollers 10A and 11A similar to those in the above-mentioned embodiment are rotatably supported on these support shafts 8A and 9A.
At least one of 0A and 11A and the corresponding support shaft 8
A one-way clutch 12 is interposed between A and 9A. Therefore, in the cleaning mode, the pen tip 4a of the hollow ink pen 4A can be cleaned by simply lowering the pen tip 4a from a direction perpendicular to the paper surface of FIG. 5 and, after descending sufficiently, raising the pen tip 4a. That is, since the cleaning rollers 10A and 11A rotate lightly when the pen tip 4a is lowered, the pen tip 4a
a can be inserted into the rolling contact position of both rollers, and then when the pen tip 4a is raised, the one-way clutch 12 is activated and the cleaning rollers 10A,
The pen tip 4a is wiped away by 11A.

-Effects of the invention- As is clear from the above explanation, according to the invention, the pen tip of the hollow ink pen attached to the paint cartridge can always be kept clean, so that lines are not blurred during drawing or writing is difficult. can be prevented from becoming impossible.

[Brief explanation of drawings]

Fig. 1 is a plan view of a multi-pen type XY plotter device to which the present invention has been applied, Fig. 2 is an enlarged plan view of the main parts of the same plotter device, Fig. 3 is a sectional view taken along the - line in Fig. 2, and Fig. 4 Figure 5 is an elevational view of another embodiment of the present invention.
The figure is a sectional view taken along the - line in FIG. 4. 2...Paint cartridge, 4A...Hollow ink pen, 4a...(Hollow ink pen) nib, 6...
...Cleaning station, 8, 8A, 9, 9
A...Cleaning roller.

Claims (1)

[Scope of utility model registration request] In a drawing machine that performs drawing by holding a hollow ink pen in a pen cartridge, a cleaning station is provided that allows the hollow ink pen held by the pen cartridge to move outside or within the drawing effective screen area, so that the pen tip cannot enter the contact position. A pair of cleaning rollers that can rotate in at least one direction about their respective axes are provided in the cleaning station, and the pen tip inserted between both cleaning rollers is forcibly pulled out in a direction in which both rollers cannot rotate. A pen nib cleaning device for a drawing machine, which is characterized by: