JPH0349915Y2 - - 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.

[Prior art] A sheet chuck is provided on the Y rail, the chuck grips the paper on the table, and the Y rail is fed a certain amount along the table, thereby depositing a certain amount of paper on the table. A feeding device for feeding paper is disclosed in Japanese Patent Publication No. 36900/1983.

[Problem that the invention attempts to solve]

Since the above device is configured to feed the paper by directly gripping the paper with a chuck mechanism provided on the Y rail, 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 body 2, a table 4 fixed to the body 2, and a table 4 fixed to the body 2.
a Y rail 14 that is movable on the top in the X direction and linked to the X direction drive system; a Y cursor 15 that is movably attached to the Y rail 14 and linked to the Y direction drive system; A pen head 16 that is connected to the cursor 15 and includes a writing instrument holder 18 that is linked to an elevating drive system; a roll paper support mechanism 8 that rotatably supports a roll of roll paper on one side of the table 4; 4 and a shaft 12 rotatably disposed on the other side of the paper roll for winding up the roll paper, the writing instrument holder is positioned in the body 2 within the movement range of the pen head 16. A shaft body 20 that can be detachably engaged with the table 4 is attached to the table 4.
The shaft 12 is supported so as to be able to reciprocate in the vertical direction perpendicular to the plane, and the shaft body 20 is connected to the shaft 12 via a power transmission mechanism that converts the vertical reciprocating motion into rotational motion.
It is linked to.

[Effect]

In the above configuration, the pen head 16 is moved to the vicinity of the shaft 20, the writing instrument holding portion 18 of the pen head 16 holds the shaft 20, and then,
By moving the pen head 16 up and down, the shaft body 20 is caused to reciprocate in the up and down direction. This shaft body 20
The reciprocating motion of the paper is converted into a rotational motion via a power transmission mechanism and transmitted to the paper winding shaft.The shaft rotates, winds up a certain amount of paper, and spreads 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. One end of the paper 6 is wound onto a winding shaft 12 rotatably supported below the other end of the table 4 by a bearing. 14 is a Y rail supported on the table 4 so as to be movable in the left and right direction in FIG.
is configured to be driven by an X motor (not shown) installed inside the fuselage 2. A Y cursor 15 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 15. A known writing instrument holder 18 is connected to the pen head 16 via a known elevating mechanism (not shown). a drive device built into the pen head 16 that drives the lifting mechanism;
The Y motor is connected to the controller via a driver. Reference numeral 20 denotes a shaft supported by the top cover of the body 2 via a lift guide so as to be vertically movable, and the upper part of this is set to have the same shape as the writing instrument for the writing instrument holder 18. Reference numeral 21 designates a one-way clutch that is fixed to the body 2 via a bracket, and the output shaft of this clutch is connected to the shaft 21. A gear 2 is connected to the input shaft of the clutch 21.
3 is fixed, and the gear 23 meshes with a rack 25 formed on the shaft 20. The shaft body 20 is biased by a spring 27 in the direction of meshing with the gear 23. The rack 25, the gear 23,
The clutch 21 constitutes a power transmission mechanism that converts the vertical reciprocating motion of the shaft body 20 into rotational motion.

Note that the power transmission mechanism is not particularly limited to the configuration shown in FIG. 3. FIG. 4 shows another embodiment of the power transmission mechanism. In the figure, 21
a is a disk fixed to the input shaft of the clutch 21, which is fixed to the fuselage 2 via a bracket;
An eccentric pin 29 is protruded from this, and the pin 29 is
It is slidably fitted into a horizontal hole 31 formed in the shaft body 20. In Figures 3 and 4,
When the shaft body 20 reciprocates up and down, the input shaft of the clutch 21 rotates forward and backward, and only rotation in one direction is transmitted to the output shaft of the clutch 21, causing the shaft 12 to take up the paper. It is configured to rotate in the direction.

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, so as to send the pen head 16 in a predetermined direction horizontal to the paper 6, and to move the writing instrument holder 18 up and down. Performs drawing operations by controlling the elevation. When a predetermined drawing is completed and a certain amount of paper 6 is to be fed on the table 4, the pen head 18 returns the writing instrument to a known pen stocker (not shown). Next, the pen head 16 is moved to the vicinity of the shaft 20 under the control of the controller, and the writing instrument holder 18 holds the shaft 20. Next, the controller causes the writing instrument holder 18 to reciprocate up and down, and the shaft body 20 to reciprocate up and down. Due to this up and down reciprocating motion, the input shaft of the clutch 21 rotates forward and backward, and the shaft 1
Rotation is transmitted to 2. As the shaft 12 rotates, the paper 6 is wound around 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 fed back to the controller. When a predetermined amount of paper has been fed out onto the table 4, the up and down reciprocating movement of the writing instrument holder 18 is stopped, the shaft 20 is then pulled out from the writing holder 18, and the pen head 16 is then moved onto the predetermined table 4. Move to the drawing standby position. Note that in this embodiment, the shaft body 20 and the roll paper supply shaft of the roll paper support mechanism 8 are not linked to each other;
It is not particularly limited to this configuration.

〔effect〕

As mentioned above, the present invention does not grip the paper when winding up the roll paper, so the paper is not damaged, and it does not require a chuck mechanism to connect the paper and the feeding member, so it is possible to reduce costs. There are effects such as.

[Brief explanation of drawings]

1 is a plan view, FIG. 2 is a side view, FIG. 3 is a side view, FIG. 4 is a side view showing another embodiment, and FIG. 5 is a side view. 2...Aircraft, 4...Table, 6...Paper, 8
... Roll paper support mechanism, 10 ... Bearing, 12 ...
Shaft, 14... Y rail, 16... Pen head, 18... Writing instrument holder, 20... Shaft body, 21
...On the other hand, clutch, 23...gear, 29...pin.

Claims (1)

[Scope of utility model registration request] A fuselage 2 and a table 4 fixed to the fuselage 2
, a Y rail 14 that is movable in the X direction on the table 4 and linked to the X direction drive system, and a Y rail that is movably attached to the Y rail 14 along the Y rail 14 .
A Y cursor 15 linked to the directional drive system, a pen head 16 connected to the Y cursor 15 and equipped with a writing instrument holder 18 linked to the elevating drive system, and a pen head 16 that rotates the roll part of the roll paper on one side of the table 4. In an X-Y plotter comprising a roll paper support mechanism 8 that supports freely and a shaft 12 that is rotatably disposed on the other side of the table 4 and winds up the roll paper, the pen head is attached to the body 2. a shaft body 20 that can be positioned within the movement range of 16 and removably engage with the writing instrument holding section 18;
is supported so as to be able to reciprocate in the up and down direction perpendicular to the 4 surfaces of the table, and the shaft body 20 is linked to at least the shaft 12 via a power transmission mechanism that converts the up and down reciprocating motion into rotational motion. Characteristic paper feeding device.