JPS634966Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a recording pen moving mechanism for an XY-axis recorder that records at a specified position on the XY coordinates.

An XY-axis recorder is generally provided with an X-axis guide shaft for moving the recording pen in the X-axis direction and a Y-axis guide shaft for moving the recording pen in the Y-axis direction. The recording pen is moved in the Y-axis direction by moving the recording pen holder along the Y-axis guide shaft, and the recording pen is moved in the X-axis direction by moving the Y-axis guide shaft along the X-axis guide shaft. Do it accordingly.

The recording pen is moved by a drive mechanism. In this case, the movement of the recording pen in the X-axis direction is
The Y-axis guide shaft itself is movable in the axial direction, and must be independent of this movement. Therefore, conventionally, the Y-axis guide shaft was
A method is used in which an axial movement motor is installed to move the recording pen in the Y-axis direction, but the drive mechanism is large and heavy, so
Movement in the axial direction requires a large force, and the inertia increases, which tends to slow the response when recording. Therefore, a method has been proposed in which a Y-axis drive motor is fixedly provided outside and the driving force is transmitted to the recording pen holder, but in the conventional method, the transmission mechanism tends to be extremely complicated.

This invention addresses the above-mentioned drawbacks and achieves Y
This invention relates to a mechanism for transmitting the driving force of a shaft drive motor to a recording pen holder through a simple mechanism.

Examples of this invention will be described below.

In FIG. 1, a Y-axis slider 1 moves in the Y-axis direction along Y-axis guide shafts 2 and 3. In FIG. A recording pen holder 4 is provided on the Y-axis slider 1, and the recording pen holder 4 holds a recording pen 5.

One end of the Y-axis guide shafts 2 and 3 is fixed to the X-axis slider 6, and when the X-axis slider 6 moves in the X-axis direction, the Y-axis guide shafts 2 and 3 also move in the X-axis direction. Further, the fixed end and the other end of the Y-axis guide shafts 2 and 3 are fixed to a holding stand 7, and this holding stand 7 is provided with a rotating roller 8, so that the Y-axis guide shafts 2 and 3 are connected to the X-axis. When moving in the direction, the rotating roller 8 moves on the recording plate 9 while rotating.

In the above, the X-axis slider 6 is fitted and supported by the X-axis guide shaft 11 and moves in the X-axis direction. This movement is performed by transmitting the rotation of the X-axis moving motor to the X-axis slider 6 via a synchro belt 15 stretched between pulleys 13 and 14.

As shown in FIG. 2, the X-axis guide shaft 11 has a sliding groove 16 machined in the axial direction on the surface of the rotating shaft, and a sliding piece 17 as shown in FIG. 3 is fitted into the sliding groove 16. It is worn. This sliding piece 17 transmits the rotation of the X-axis guide shaft 11 to the Y-axis slide pulley 18.

The Y-axis slide pulley 18 moves the Y-axis slider 1 in the Y-axis direction, and the rotation of the Y-axis slide pulley 18 is transmitted via the Y-axis synchro belt 19 to move the Y-axis slider 1 in the Y-axis direction. I am made to do so.

20 is a Y-axis movement motor, and the rotation of the Y-axis movement motor 20 is
The rotation of the X-axis guide shaft 11 is further transmitted to the Y-axis guide shaft 11 as described above.
It is transmitted to the shaft slide pulley 18.

The Y-axis slide pulley 18 moves the Y-axis slider 1 as described above, and when the Y-axis guide shafts 2 and 3 move in the X-axis direction, the Y-axis slide pulley 18 moves the X-axis on the X-axis guide shaft 11 in conjunction with the movement of the Y-axis guide shafts 2 and 3 in the X-axis direction. slide in the direction. Furthermore, at this time, the sliding piece 17 also slides within the sliding groove 16 at the same time as the Y-axis slide pulley 18.

FIG. 4 shows the attachment relationship between the Y-axis slide pulley 18 and the X-axis guide shaft 11, and the Y-axis slide pulley 18 is fixed to the fitting ring 22. The fitting ring 22 is slidably fitted along the X-axis guide shaft 11, and when sliding, the sliding piece 17A also slides at the same time. The sliding piece 17A transmits the rotation of the X-axis guide shaft 11 to the fitting ring 22.
In addition, in FIG. 4, a similar fitting ring 23 is disposed adjacent to the fitting ring 22, and this fitting ring 23 is moved by a sliding piece 17B that slides simultaneously with the fitting ring 23.
Rotation of the shaft guide shaft 11 is transmitted. In the above, the fitting rings 22 and 23 are connected by the spring 24, and the spring 24 applies rotational forces in opposite directions to the fitting rings 22 and 23. By doing this, the sliding piece 17
By absorbing the play between A, 17B and the sliding groove 16, even a slight rotation of the X-axis guide shaft 11 can be transmitted to the Y-axis slide pulley 18.

As described above, according to this invention, a pair of sliding pieces slides through the sliding groove 16 formed in the X-axis guide shaft 11, and the Y-axis slider is caused to move in the Y-axis direction via this sliding piece. configured to communicate. Further, the pair of sliding pieces are configured to rotate in opposite directions within the sliding groove 16, thereby allowing the rotation of the X-axis guide shaft 11 to move along the Y-axis without play or play. The signal is transmitted to the slider. Therefore, the moving mechanism of the recording pen can be extremely simplified and lightened.
It is possible to realize an XY-axis recorder that has good response to recording signals and performs stable recording even against vibrations and the like.

[Brief explanation of the drawing]

Fig. 1 shows an embodiment of this invention, Fig. 2 shows a specific example of the X-axis guide shaft, Figs.
The figure shows a specific example of the structure of the Y-axis slide pulley and the X-axis guide shaft. In Fig. 1, 1 is a Y-axis slider, 2 and 3 are Y-axis guide shafts, 4 is a recording pen holder,
5 is a recording pen, 6 is an X-axis slider, 7 is a holder, 8 is a rotating roller, 9 is a recording plate, 11 is an X-axis guide shaft, 12 is a motor for moving the X-axis, 1
3 and 14 are pulleys, 15 is an X-axis synchronous belt, 16 is a sliding groove, 18 is a Y-axis slide pulley, 19 is a Y-axis synchronous belt, 20 is a Y-axis moving motor, and 21 is a synchronous belt.

Claims (1)

[Scope of utility model registration claim] Recording is performed by moving the recording pen in the XY axis directions.
An XY-axis recorder includes an X-axis guide shaft having a rotating shaft arranged in the X-axis direction and having a circular cross section with an axial sliding groove machined on the surface of the rotating shaft, and an X-axis guide shaft that is slidable on the X-axis guide shaft. a fitting ring that is fitted together and transmits the rotation of the X-axis guide shaft through a first sliding piece that is slidably fitted in a sliding groove of the X-axis guide shaft; Fits slidably into the guide shaft,
a Y-axis slide pulley to which rotation of the X-axis guide shaft is transmitted via a second sliding piece slidably fitted into a sliding groove of the X-axis guide shaft; one end of which is connected to the Y-axis slide; a spring fixed to the pulley and having its other end fixed to the fitting ring to apply rotational force in the opposite direction between the pulley and the fitting ring; and a Y-axis guide shaft for moving the recording pen in the Y-axis direction. an X-axis slider fixed to the Y-axis guide shaft and fitted and supported by the Y-axis guide shaft so as to be movable in the X-axis direction; and a recording pen holder that moves in the Y-axis direction by transmitting the rotation of the X-axis guide shaft through a drive belt stretched over a Y-axis slide pulley, and a recording pen held by the recording pen holder. A recording pen moving mechanism characterized by recording on XY coordinates.