JPH0353911Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a paper feeding device for delivering a fixed amount of paper onto a table in an X-Y plotter.

[Conventional technology]

A sheet gripping chuck is provided on the Y rail, and the chuck is electrically driven so that the chuck grips the paper on the table, and the Y rail is fed a certain amount along the table, thereby causing the sheet to be held on the table. The paper feeding device that dispenses a certain amount of paper at the
It is disclosed in Publication No. 60-36900.

[Problem that the invention attempts to solve]

The above device is configured to feed the paper by directly gripping the paper with a chuck mechanism installed on the Y rail, which tends to damage the paper, and because the chuck mechanism that grips the paper is electrically driven. There was a drawback in that it was necessary to connect electric wires to the Y rail, making the structure complex and increasing costs.

The present invention aims to eliminate the above defects.

[Means to solve problems]

In order to achieve the above object, the present invention includes a machine body 2, a table 4 fixed to the machine body 2, and a table 4 fixed to the machine body 2.
A Y rail 14 that is movable in parallel on the top in the X direction and linked to the X drive system, and a pen head 16 that is movably attached to the Y rail 14 and linked to the Y drive system.
and roll paper 6 on one side of the table 4.
In the X-Y plotter, the X-Y plotter includes a roll paper support mechanism 8 that rotatably supports a roll portion of the table 4, and a shaft 12 for winding up the roll paper 6, which is rotatably arranged on the other side of the table 4. A belt pulley 24 is rotatably disposed near one end of the side of the table 4 in the longitudinal direction, and a belt pulley 24 is positioned near the other end of the side of the table 4 in the longitudinal direction at one end of the shaft 12. 20 is fixedly installed, and the pair of belt pulleys 24, 20 are provided with a large number of transparent holes 28 at approximately equal intervals.
6, a lever 30 is biased in one direction and rotatably supported on the end of the Y rail 14, and one of the levers 30 is moved along the Y rail 14 on the side of the pen head 16. The protrusion 34 on the other side of the lever 30 is placed horizontally opposite the belt 26, and the lever 30 is placed on the path.
0 is pushed, the protrusion 34 fits into the hole 28 of the belt 26.

[Effect]

In the above configuration, the pen head 16 is moved along the Y rail 14, the lever 30 is swung by the pen head 16, the protrusion 34 of the lever 30 is fitted into the hole 28 of the belt 26, and then,
By moving the Y rail 14 along the longitudinal direction of the table 4, the belt pulley 20 is rotated. The rotation of the belt pulley 20 is transmitted to the paper take-up shaft 12, which rotates to take up a certain amount of paper and spread out a new paper onto the table.

〔Example〕

The configuration of the present invention will be described in detail below with reference to embodiments shown in the accompanying drawings.

Reference numeral 2 denotes the body of an X-Y plotter, on which a table 4 is fixedly mounted, and sheets 6 are laid out and placed on the table 4. Roll portion 6a of the paper 6
is supported by a roll paper support mechanism 8 rotatably disposed below one end of the table 4, as shown in FIG. One end of the paper 6 is wound onto a winding shaft 12 rotatably supported by a bearing below the other end of the table 4 . 14 is a Y rail supported on the table 4 so as to be movable in the left and right direction in FIG.
It is configured to be driven by a motor (not shown). A Y cursor is attached to the Y rail 14 and is driven along the Y rail 14 by a Y motor, and a pen head 16 is connected to the Y cursor. A known writing instrument holder 18 is connected to the pen head 16 via a known elevating mechanism (not shown). A driving device built into the pen head 16 that drives the lifting mechanism and the X and Y motors are connected to the controller via a drive. 20 is the shaft 1
2 is a belt pulley fixed to one end of the machine body 2, and an endless belt pulley 24 is located near one end in the longitudinal direction of the side of the table 4 of the machine body 2 and is rotatably supported. A belt 26 of the shape is stretched around the belt 26. The upper horizontal portion of the belt 26 is disposed on substantially the same plane as the table 4, and is disposed over substantially the entire longitudinal length of the table 4 along the moving direction (X direction) of the Y rail 14. There is. A large number of holes 28 are bored in the belt 26 at equal intervals. 30 is the Y rail 1
One of the levers is disposed on the line of movement of the pen head 16, and a protrusion 34 fixed to the other side of the lever 30 is attached to the upper part of the belt 26. They face each other at a predetermined distance below the horizontal portion. The lever 3
0 is biased counterclockwise in FIG. 3 by a spring 36. Note that the lever 30 may be biased counterclockwise by its own weight.

Next, the operation of this embodiment will be explained.

The controller drives and controls the X and Y motors and a drive device that drives the writing instrument holder 18 of the pen head 16 up and down to send the pen head 16 in a predetermined direction horizontal to the paper 6 and to move the writing instrument holder 1
8 is controlled to move up and down to perform drawing operations. When a predetermined drawing is completed and a certain amount of paper 6 is to be fed on the table 4, the writing instrument holder 18 is raised and the pen head 16 is moved to the Y rail 1 under the control of the controller.
Move near one end of 4. This movement of the pen head 16 causes the pen head 16 to collide with one of the levers 30, as shown in FIG.
In the figure, it swings clockwise. This swinging of the lever 30 causes the protrusion 34 to fit into the hole 28 of the belt 26.

Next, the Y rail 14 is set to +X by the controller.
When moving in the direction, the upper horizontal portion of the belt 26
Driven in the +X direction, the belt pulley 20 rotates. The rotation of the belt pulley 20 is transmitted to the shaft 12, and the paper 6 is wound around the shaft 12 by the rotation of the shaft 12. The amount of paper 6 to be fed is converted into a pulse signal by the rotation of a roll 32 fixed to the output shaft of a pulse encoder, and the signal is fed back to the controller. When a predetermined amount of paper has been fed onto the table 4, the movement of the Y rail 14 is stopped, and then the Y rail 14 and the pen head 16 are moved to a predetermined drawing standby position on the table 4. Lever 30 is pen head 1
When the pressing force from 6 is released, it returns to its original state. The movement of the Y rail 14 for winding the paper is controlled by detectors that are provided at both ends of the movement range of the Y rail 14 for winding the paper so as to engage with the Y rail 14. You can also do it. Note that the lever 30 may be swung by the Y cursor.

〔effect〕

Since the present invention is configured as described above, it is possible to feed the paper without damaging the paper, and the structure can be simplified, which has the effect of reducing costs.

[Brief explanation of the drawing]

Figure 1 is a plan view, Figure 2 is an external view, Figure 3 is an external view, Figure 4 is a side view, Figure 5 is an external view, Figure 6 is a side view, and Figure 7 is a side view. . 2...Aircraft, 4...Table, 6...Paper, 8
... Roll paper support mechanism, 12 ... Shaft, 14
... Y rail, 16 ... Pen head, 18 ... Writing instrument holder, 20, 24 ... Belt pulley, 26
...Belt, 28...hole, 30...lever.

Claims (1)

[Scope of utility model registration request] A fuselage 2 and a table 4 fixed to the fuselage 2
and, movable in parallel on the table 4 in the X direction.
A Y rail 14 linked to the X drive system, a pen head 16 movably attached to the Y rail 14 and linked to the Y drive system, and a roll part of the roll paper 6 rotatably supported on one side of the table 4. In the A belt pulley 24 is rotatably disposed near one end, and a belt pulley 20 is fixed to one end of the shaft 12 near the other longitudinal end of the side of the table 4. belt pulley 2
4, 20, an endless belt 26 having a large number of transparent holes 28 provided therethrough at approximately equal intervals is stretched over the Y rail 1.
A lever 30 is biased in one direction and rotatably supported at the end of the pen head 16, and one of the levers 30 is placed on the moving path along the Y rail 14 on the side of the pen head 16. A protrusion 34 on the other side of the lever 30 is arranged to face the horizontal part of the belt 26, and when one of the levers 30 is pushed, the protrusion 34 fits into the hole 28 of the belt 26. paper feeder.