JPH088158Y2 - Intermittent feed type automatic drafting machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to an intermittent feed type automatic drafting machine that draws continuous paper from a paper feed reel and draws one screen on a recording medium.

[Conventional technology]

FIG. 2 illustrates a drum type plotter that has been widely used in the conventional plotter that performs continuous drawing, and is roughly divided into a drum type and a flat bed type.

FIG. 2 is a perspective view showing a schematic configuration of an example thereof. In FIG. 2, 1 is a drawing paper as a recording medium (hereinafter simply referred to as paper), 2 is a paper feed shaft, 3 is a paper feed motor, and 4 is The vacuum chamber 5 for sucking the sheet 1 is a drum, 5a is a drive unit for rotating the drum 5 to move the sheet 1 in the X direction, and 6 is a holding mechanism 8 for holding the pen 7 so as to be vertically movable.
Is a drive unit for moving the pen carriage belt 6 in the Y direction, 10 is a winding shaft, and 11 is a winding motor.

The drum type plotter composed of these is configured so that the forward and reverse rotations of the drum 5 and the pen 7 are respectively operated by the drive units 5a and 6a by a signal of a control circuit (not shown) to record an arbitrary figure or the like on the paper 1. There is. Here, since the paper 1 used is interlocked with the drum 5 when moving in the X direction, sprocket holes 1a are formed at both ends of the paper, and the paper 1 is engaged with sprocket pins provided on the drum 5 to eliminate the misalignment of the paper. Has been considered. In addition to this structure, recently, a microgrip system is also provided with a pressing roller provided at a position facing the drum, which is subjected to a treatment for increasing frictional force, so that the paper on the drum is pinched and the paper can be accurately rotated forward and backward. Developed and put to practical use.

Further, although not shown, an apparatus in which a raster head, that is, a multi-nozzle head is arranged in a direction perpendicular to the X direction of the paper 1 is used.

The multi-nozzle head has a plurality of nozzles arranged on one line so that the paper width of the paper 1 can be drawn in one operation, and the nozzles eject liquid according to a signal from a control device that separately instructs. It was developed so that dots can be generated and drawing can be performed in a short time, and the drawing time is obviously shortened when compared with pen drawing.

[Problems to be solved by the invention]

However, such a conventional device has the following drawbacks.

(1) In the case of the sprocket system If the frequency of forward and reverse rotation increases, the number of times the sprocket pin and the sprocket hole 1a bite increases, and this hole becomes deformed, and as a result the paper cannot be fed accurately and the drawing performance deteriorates. . This phenomenon is particularly noticeable on thin paper, so paper with a basis weight of 55 g / m ² or less could not be used. Moreover, the same problem has occurred in the microgrip method. That is, in the case of thin paper, there is a problem that the paper is broken due to the pressing force of the pressing roller, and there is a drawback that the paper is limited in each method.

(2) If the paper width is large, for example, 2300 for apparel
A device capable of drawing a width of mm is required.

In this case, the length of the effective drawing portion of the multi-nozzle head needs to be at least 2300 mm. But,
At present, a multi-nozzle head having such a length is difficult to draw, or it is possible to arrange a plurality of short nozzles and align them on one line, but this is a difficult task due to assembly and adjustment. Currently, it is not on the market.

For this reason, the pen drawing means shown in FIG. 2 is adopted, although it takes drawing time.

The present invention was devised in view of the above-mentioned points, and its purpose is to arrange a recording portion for one screen, minimize the number of times of feeding and returning the paper, and for thin paper. However, it exhibits excellent drawing performance without any problems.

Further, the present invention provides an intermittent feed type automatic drafting machine capable of drawing in a short time even with a large paper width, for example, a 2300 mm width paper used in the apparel industry.

[Means for solving problems]

A raster-type recording device provided with a Y-axis direction drive mechanism that faces a recording medium and arranges a recording portion for one screen in the same direction as the moving direction of the recording medium and moves in a direction perpendicular to the moving direction of the recording medium. Therefore, the recording medium is stopped during one screen recording, and after the recording is completed, this screen is moved to move in the X-axis direction to deal with the next screen.

[Action]

The effect is that the paper is stopped at the time of recording and the drawing data within the defined range in the X-axis direction is drawn by the scissoring function, which is a function of drawing, so that the paper feeding is only required once. For this reason, not only does it cause no problem even on thin paper, but it also leads to a reduction in drawing time even on wide paper, which is a very efficient drawing mechanism.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

〔Example〕

FIG. 1 is a perspective view showing a schematic configuration of one embodiment of the present invention. In FIG. 1, 1 is a drawing paper (hereinafter simply referred to as paper) as a recording medium, 2 is a paper feed shaft, 3 Is paper 1
A sheet feeding motor that unwinds the sheet 1 only when is pulled, 20 is a drawing board, and 21 is a rotation mechanism transmitted by an X-axis moving mechanism 5a to move the sheet 1 in the front X direction. The drum 22 is fixed to a carriage 25 mounted on a pulley 24 connected to a Y-axis direction drive unit 23 that moves in a direction perpendicular to the traveling direction of the sheet 1, and is guided in the Y-axis direction by left and right guides 26 and 27. A multi-nozzle head of a raster type recording apparatus composed of a plurality of recording bodies, 4 is a vacuum chamber for sucking the paper 1, 10 is a winding shaft, and 11 is a winding motor.

Although not shown, the drawing is controlled by a signal from a unit that detects the lowermost end of the sheet 1 so that the drawn sheet is wound up. However, the paper feed control of the sprocket drum type automatic drafting machine is known. Is.

The operation of such components will be described in the order of drawing.

The data to be drawn is usually specified by vector data. Although not shown in the description, a known vector raster conversion device and a scissoring function in the X-axis direction, that is, in the case of drawing data exceeding one screen, the function of recording data for only one screen is used for the first drawing. The raster data to be formed is formed, a signal is transmitted to each recording medium of the multi-nozzle head 22, the moving mechanism 5a and the paper feed motor 3 are locked at the same time, and the multi-nozzle head 22 is driven by the Y-axis direction drive unit 23. Move 22 to move to the other side Drawing is complete.

This operation continues until the multi-nozzle head 22 moves to the range of the paper width, and drawing for one screen is completed.

After the head 22 stops, the X-axis moving mechanism 5a feeds the sheet 1 in the forward direction, that is, in the front direction. At this time, since the paper 1 is pulled on the paper feeding side, the paper feeding motor 3 rotates to perform the paper feeding operation from the paper feeding reel, and the lowermost end of the paper is detected on the winding side. Thus, the winding motor 11 performs a winding operation and winds the winding reel around the winding reel. After feeding a fixed amount by the moving mechanism 5a, the sheet 1 is stopped. An encoder (not shown) is attached to the axis of the moving mechanism 5a so that the moving amount of the sheet 1 can be accurately measured. After the sheet 1 is stopped, the moving amount is measured to measure the feed amount. With respect to excess and deficiency, the nozzles are arranged outside the normal recording range of the multi-nozzle head 22 so that the splicing accuracy of data is guaranteed without shifting the paper 1.

After the drawing for one screen is completed in this way, raster data for the second screen is generated and the multi-nozzle head
22 can be moved to the side where it was originally and can be drawn by the same control.

It should be noted that although the sprocket type sheet feeding is described in the present embodiment, it is obvious that the same result can be obtained by the pressing type microgrip type. In addition, as a recording means, an inkjet method is most suitable as a non-contact type, but there are also electrostatic recording methods and thermal recording methods. As a representative of the contact type, a pressure-sensitive recording method, a multi-wire dot method, or the like can be used. can get.

[Effect of device]

As described above, according to the present invention, the multi-nozzle head 22 arranged in the feeding direction of the continuous paper causes one screen to be fed to the fed paper 1 only when the paper is stopped for the length of the multi-nozzle head 22. In the apparel industry, where various paper feeding problems that are problematic with the conventional method are solved and cheaper paper or thin paper can be used, and a wide paper width is required, The effect is extremely large, such as shortening the time.

Further, even if a head having only the length of the paper width is made for the apparel or the steel frame type paper industry which requires a wide paper width, various problems due to the intermediate bending occur. Has a characteristic that even if the width of the paper is large, it is not necessary to increase the length of the multi-nozzle head and the width of the paper does not affect the width.

Therefore, the intermittent feed type automatic drafting machine of the present invention is practically
It is extremely useful.

[Brief description of drawings]

FIG. 1 is a perspective view showing a schematic structure of an embodiment of the present invention, and FIG. 2 is a perspective view showing a schematic structure of an example of a conventional device. 1 ... Paper (recording medium), 2 ... Paper feed shaft, 3 ... Paper feed motor, 4 ... Vacuum chamber, 5,21 ... Drum, 6
... Pen carriage belt, 7 ... Pen, 8 ... Holding mechanism, 10 ... Winding shaft, 11 ... Winding motor, 20 ... Drawing board,
22 …… Multi-nozzle head, 23 …… Y-axis direction drive unit, 24
...... Pulley, 25 …… Carriage, 26,27 …… Guide, 5a
...... Movement mechanism.

Claims (1)

[Scope of utility model registration request] 1. A Y-axis direction drive mechanism is provided which is opposed to a recording medium and has a recording portion for one screen arranged in the same direction as the moving direction of the recording medium and moves in a direction perpendicular to the moving direction of the recording medium. A raster-type recording device, characterized in that it comprises a moving mechanism in the X-axis direction for stopping the recording medium during one screen recording and moving the screen after the recording is completed to cope with the next screen. Intermittent feed type automatic drafting machine.