JPH041720B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides an underlay for use in an automatic drawing machine that draws a predetermined pattern on a sheet-like member by controlling the relative movement of a writing instrument in the XY coordinate directions with respect to a sheet-like member such as paper. Regarding equipment.

In this type of automatic drawing machine, when a ballpoint pen is used as a writing instrument, it is desirable to employ an underlay made of a soft material such as rubber or cardboard. Furthermore, when using a writing instrument for marking lines, it is desirable to use a hard underlay such as a steel plate. However, when a soft member is used as the underlay, there is a drawback that the underlay is damaged by the pressure of the writing instrument. Therefore, an object of the present invention is to enable the underlay to be easily replaced.

The configuration of the present invention will be described in detail below based on embodiments shown in the accompanying drawings. In Figure 1, 2 is
It is a drum drawing board rotatably mounted on a shaft 6 on a machine frame 4 fixed to the aircraft body (not shown), and one end of this is a
As shown in FIG. 3, the machine frame 4 is
The output shaft of an electromagnetic clutch 10 is fixed to the output shaft of the electromagnetic clutch. The input shaft of the clutch 10 is the gear 12,1.
4, it is linked to the output shaft of the DC motor M with a speed reducer. An underlay member 16 made of a soft material such as rubber or cardboard is adhered and fixed to the surface of the drawing board 2. In FIG. 4, 18 is an index member fixed to one end of the drum drawing board 2;
A plurality of index recesses 18a are formed in this. 20 is a mounting plate fixed to the frame 4;
A rotary solenoid 22 is fixed to this, and an arm 24 is fixed to the output shaft of the solenoid 22. A roller 26 at the tip of the arm 24 comes into elastic contact with one end surface of a swinging member 28, and the other end of the swinging member 28 is rotatably supported by the mounting plate 20. The swinging member 28 is constantly biased by a spring in the direction of rotation of the hour hand in FIG. 4 about a shaft 35. Reference numeral 36 designates a locking rod having one end fixed to the member 28, and a claw portion 3 formed at the other end of the locking rod.
6a faces the circumferential surface of the index member 18. 38 and 40 are switch operating members fixed to the drawing plate 2, and 42 and 44 are micro switches fixed to the mounting plate 20. In FIG. 1, 50 is a Y rail installed on the aircraft body, and a Y cursor 52 is movably attached to this.
A drawing head 54 is fixed to the cursor 52. A writing instrument 56 is supported on an elevating body linked to an elevating and lowering drive device for the head 56. The Y cursor 52 indicates the belt 6 stretched between a pulley 62 linked to a motor 60 and a pulley 64 opposite thereto.
It is connected to 6. 68 is a feed roller linked to the drive device, and a pressure roller 70 is placed on the surface of this feed roller.
72 is in ballistic contact. 74 is drawing paper;
It is held between the roller 74 and rollers 70 and 72.

Next, the operation of this embodiment will be explained. The feed roller 68 is rotationally controlled to move the paper 74 to X and the belt 6.
6 to send the drawing head 54 in the Y direction and draw a predetermined pattern on the paper 74 on the drum drawing board 2 with the writing instrument 56. When converting the underlay directly under the moving range of the writing instrument 56, for example, the micro switch 42 is selected and turned on/off, and then the motor M is driven. The drive of the motor M is transmitted to the drum drawing board 2 via the electromagnetic clutch 10, and the drawing board 2 is connected to the shaft 6 in the direction of the arrow.
Rotates around the center. When the soft surface of the underlay 16 to be selected is brought directly under the writing instrument 56, the member 38 pushes the switch piece of the microswitch 42, turning the microswitch 42 on. When the micro switch 42 operates, the electromagnetic clutch 10 is disengaged, and at the same time, the rotary solenoid 22 is driven and the arm 24 is rotated in the counterclockwise direction of rotation of the hour hand in FIG. This causes the swinging member 28 to move to the fourth position.
As shown in the figure, the clock rotates in the counterclockwise direction of rotation of the hour hand, and the locking rod 36 and the claw portion 36a fit into the fitting recess 18a, and the drawing board 2 is fixed. In this way, the other soft surface of the underlay 16 can be positioned directly below the other writing instrument 56. In addition, as shown in FIG. You can do it like this. In addition, as shown in FIG. 8, a flat drawing board 90
is supported so as to be movable in the x coordinate direction, and the underbody 92 is fixed to this drawing board 90, and the rotation of the output shaft of the motor M is controlled by the gears 94, 96, 98 and the rack gear 100 in a linear direction, that is, in the direction of exchanging the underbody. It may also be converted into movement. Further, as shown in FIG. 10, in an automatic drawing machine that draws a predetermined pattern by sending a writing instrument 110 in the direction of the XY coordinate axes within a plane parallel to the fixed table 11, pulleys 114, 1
A desired soft underlay surface may be positioned below the movement range of the writing instrument 110 by passing an endless belt 118 on which a soft underlay surface is formed and rotating the pulley 116.
Further, as shown in FIG.
A desired portion of the soft surface may be positioned below the range of movement of the writing instrument 110 by winding the writing instrument 110 and controlling the rotation of the reels 122 and 124. Note that the underlay may be configured to be moved manually.

Since the present invention is configured as described above, there is an advantage that the underlay can be easily replaced.

[Brief explanation of drawings]

Fig. 1 is an explanatory side view, Fig. 2 is an explanatory external view, Fig. 3 is a sectional view, Fig. 4 is a plan view, Fig. 5 is a side view showing another embodiment, and Fig. 6 is another embodiment. 7 is a plan view of the same, FIG. 8 is a side view of the same, FIG. 9 is a sectional view of the same, FIG. 10 is an explanatory side view of another embodiment, and FIG. 11 is another example. It is an explanatory side view showing an example of this. 2...Drum drawing board, 4...Frame body, 10...Electromagnetic clutch, 12, 14...Gear, 16...Underlay member, 18...Index member, 22...Rotary solenoid, 50...Y rail, 52...Y
Cursor, 60...Motor, 66...Belt, 6
8...Feed roller, 70, 72...Pressure roller,
74...Paper.

Claims (1)

[Claims] 1. In an automatic drawing machine that presses a writing instrument against a sheet-like member placed on an underlay and moves the writing implement relative to the sheet-like member to draw a prescribed drawing on the sheet-like member, , forming a plurality of soft surfaces, each having an area approximately corresponding to the range of movement of the writing instrument, such that a desired soft surface of the plurality of soft surfaces can be located directly below the range of movement of the writing instrument; An underlay device characterized in that the underlay body is movably supported.