JPH0349912Y2 - - 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 provided on the Y rail, so the paper is easily damaged, and the cost increases if a chuck mechanism for gripping the paper is provided. There was a flaw.

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 pen head 16 equipped with a writing instrument holder 18 that can be moved to any desired position on the top and is linked to an elevating drive system.
and roll paper 6 on one side of the table 4.
In the A pair of belt pulleys 24 and 20 are rotatably arranged near both longitudinal ends of the side of the table 4,
One end of the shaft 12 is connected to at least one belt pulley 20 of these belt pulleys 24, 20, and the pair of belt pulleys 24, 2
An endless belt 26 made of a magnetic material is placed around the pen head 16, and the upper horizontal part of the belt 26 is disposed within the movement range of the pen head 16 and on substantially the same plane as the table 4. 1
An electromagnet 33 is provided in the writing instrument holding portion 18 of No. 6.

[Effect]

In the above configuration, the pen head 16 is moved directly above the belt 26, the writing instrument holder 18 of the pen head 16 is lowered to bring the electromagnet 33 into contact with the belt 26, and then the electromagnet 33 is energized to move the electromagnet 33 onto the belt 26. Thereafter, by moving the pen head 16 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, and between this and a belt pulley 24 that is rotatably supported and located near one longitudinal end of the side of the table 4 of the machine body 2. An endless belt 26 made of magnetic material is stretched around it. The belt 26
The upper horizontal part of
direction) along substantially the entire length of the table 4 in the longitudinal direction. Reference numeral 33 denotes an electromagnet fixed to the writing instrument holder 18, and the electromagnet 32 moves from the drawing surface when the writing instrument holder 18 is lowered while holding the writing instrument and the writing instrument is in contact with the drawing surface. is in a raised position for a predetermined distance;
In addition, the dimensions are set so that when the writing instrument holder 18 descends without holding a writing instrument, it is at a height position where it can come into contact with the surface of the belt 26. 34 is a penstocker.

Next, the operation of this embodiment will be explained.

The controller drives and controls the X, 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 pen head 16 returns the writing instrument to the pen stocker 34. Next, with the writing instrument holder 18 raised, the pen head 16 is moved near one end of the belt 26 under the control of the controller. Next, the writing instrument holder 18 is lowered and the electromagnet 33
is located directly above the end of the upper horizontal portion of the belt 26. Next, the electromagnet 33 is energized, and the electromagnet 33 is fixed to the belt 26. Next, when the Y rail 14 is moved in the +X direction by the controller, the upper horizontal portion of the belt 26 is driven in the +X direction, causing the belt pulley 20 to rotate. The rotation of the belt pulley 20 is transmitted to the shaft 12, and the paper 6 is wound onto 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 roller 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 the electromagnet 33 is turned off. Next, the writing instrument holder 18 is driven upward, and the pen head 16 moves to a predetermined drawing standby position on the table 4.
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.
In this embodiment, the belt pulley 24 and the roll paper supply shaft of the roll paper support mechanism 8 are not connected to each other, but the configuration is not particularly limited.

[Effects] Since the present invention is constructed as described above, the paper can be fed without damaging the paper, and since no chuck for gripping the paper is required, the structure can be simplified and costs can be reduced. There is an effect.

[Brief explanation of drawings]

1 is a plan view, FIG. 2 is an external view, FIG. 3 is an external view, FIG. 4 is an external view, and FIG. 5 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, 33...electromagnet.

Claims (1)

[Scope of utility model registration request] A fuselage 2 and a table 4 fixed to the fuselage 2
and, movable to any position on the table 4.
A pen head 16 equipped with a writing instrument holder 18 linked to an elevating drive system, a roll paper support mechanism 8 that rotatably supports a roll of roll paper 6 on one side of the table 4, and a roll paper support mechanism 8 on the other side of the table 4. In the X-Y plotter, a pair of belt pulleys 24 and 20 are rotatably provided near both ends of the side of the table 4 in the longitudinal direction. The shaft 1 is disposed on at least one belt pulley 20 of these belt pulleys.
2, and the pair of belt pulleys 2
An endless belt 26 made of a magnetic material is stretched between the pen head 16 and the pen head 16, and the upper horizontal part of the belt 26 is placed within the movement range of the pen head 16 and within the table 4.
A paper feeding device characterized in that an electromagnet 33 is disposed on the writing instrument holding portion 18 of the pen head 16 so as to be substantially on the same plane as the pen head 16.