JPH01136797A - Writing lead automatic feeder in x-y plotter - Google Patents

Abstract

PURPOSE: To reduce the size and cost of an automatic lead feeder by disposing a lead container on the body side and utilizing the moving force of a writing head tar refilling thereby reducing the weight of the writing head. CONSTITUTION: A writing head 10 is moved downward from a lead container 302 on the body 2 side and when a pen P holding the pen holding part 12 of the writing head 10 is located directly under the opening/closing part at the pen P, the shutter is driven by the moving power of the writing head 10. Consequently, the shutter is opened and a lead in the lead container 302 drops through the opening of the shutter and inserted into the lead insertion hole of the pen P on the writing head 10 side. When the writing head 10 is moved to recede from the shutter, pushing force of the writing head 10 acting onto the shutter is released and the shutter is closed. Since the lead container 302 is disposed on the body 2 side, weight of the writing head 10 can be reduced and since no driver is required for lead supply, the size and cost of an automatic lead feeder can be reduced.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an automatic writing tip in an Regarding the supply device.

[Conventional technology]

Japanese Patent Publication No. 56-34892 discloses that a plurality of writing leads are held in a turret-type magazine of a plotter head, a desired writing lead is pressed with a push pin and brought into contact with the drawing surface, and the writing lead is placed on the drawing surface using the writing lead. Turret type X-Y for line drawing
A plotter is disclosed. Also, JP-A-57-13
No. 8997 discloses that a rotary writing instrument stocker, ie, a carousel, is provided on the side of the machine, and a plurality of pen holding parts of the carousel hold a lead cartridge in which a writing lead is inserted,
An XY plotter is disclosed in which a lead cartridge can be exchanged between a pen on the drawing head side and a pen holding section of a carousel.

Further, in Japanese Utility Model Application Publication No. 60-80996, a writing block provided on a drawing head is provided with a lead case.

An XY plotter is disclosed in which a single lead in the lead case is supplied to a holder in a writing block and a line drawing is performed on a drawing surface using the writing lead held by the lead holder.

Furthermore, in Japanese Patent Application Laid-Open No. 61-132394, a plurality of pen holding sections of a writing instrument stocker provided in the machine body hold a writing instrument with a built-in lead automatic feeding mechanism, and the pen holding section on the stocker side and a drawing instrument are provided. An XY plotter is disclosed in which writing instruments can be exchanged with a pen holder on the head side.

[Problem that the invention seeks to solve]

The above-mentioned turret-type The structure of the printer is complicated, and as a result, the weight of the drawing head increases, making it impossible to control high-speed drawing. In addition, in an X-Y plotter that has a writing instrument stocker on the body side and holds writing instruments in multiple pen holding parts of the stocker, there is no mechanism for replenishing the writing instruments on the writing instrument stocker side, so Writing instruments that have lost their lead in the stocker must be manually replaced with writing instruments that have a lead, which is extremely inconvenient.

The present invention aims to eliminate the above-mentioned defects.

Another object of the present invention is to structure the writing core automatic supply device so that it can be driven by using the moving force of one drawing head without providing a special drive device on the side of one machine. The goal is to make it easier.

[Means to solve problems]

In order to achieve the above object, the present invention is applied to the aircraft body.

A lead storage container having a lead storage part for storing a plurality of writing leads is provided, a shutter is provided at a lower part of the lead storage container, and an opening of the shutter allows one of the writing leads in the lead storage part to be stored. The writing instrument holder of one drawing head can be moved directly below the opening/closing part of the shutter.

The opening/closing operation of the opening/closing portion of the shutter is performed by pushing and releasing the pushing motion of the drawing head with respect to the shutter, and the center of the upper end surface of the writing instrument held by the writing instrument holding portion of the drawing head is aligned with the shutter. The opening/closing part of the shutter is configured to open when the shutter is located directly below the opening/closing part of the shutter.

[Effect]

In the above configuration, when the drawing head is moved toward the bottom of the lead storage container on the machine side and the writing instrument held by the writing instrument holder of the drawing head is positioned directly below the opening/closing part of the shutter, the moving force of the drawing head causes the shutter to close. is driven, the shutter opens, and the writing lead in the lead storage container falls downward through the opening of the shutter, and the writing lead is dropped and inserted into the lead insertion hole of the writing instrument on the drawing head side. When the drawing head moves in a direction away from the shutter, the pressing force of the drawing head against the shutter is released and the shutter is closed.

〔Example〕

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

In FIG. 6, reference numeral 2 denotes the body of a paper-driven X-Y plotter, and a Y-rail 6 is fixed horizontally on a paper mounting plate 4. As shown in FIG. The mounting plate 4 is moved by a pinch roller mechanism consisting of a drive roller and a presser roller arranged on both sides of the mounting plate 4.
Both sides of the upper paper 8 are supported, and the paper 8 on the mounting plate 4 is sent back and forth (+-X direction) by rotation of the drive roller driven by the X motor. A drawing head 10 is attached to the Y rail 6 so as to be moved along the rail 6 by the drive of a Y motor. Reference numeral 12 denotes a writing implement holding section provided in the drawing head 10, and the holding section 12 is linked to a pen lifting mechanism built into the drawing head 10. A box 14 is provided at one end of the Y rail 6, and as shown in FIG.
is installed. The stocker 300 is connected to the output shaft of a motor with a speed reducer (not shown) that is fixed inside the box 14.

A pair of disc parts 300a of the stocker 300.

300b includes a plurality of known writing instrument holders (not shown).
is formed so that writing instruments can be automatically exchanged between a desired one of the holding parts and the writing instrument holding part 12 of the drawing head 10 (see FIG. 6). ing. Incidentally, since the configuration for automatically exchanging writing instruments is well known, a detailed explanation thereof will be omitted. A plurality of cylindrical core storage containers 302 are erected on the upper horizontal portion 300c of the stocker 300. The core storage container 302 is
As shown in FIG. 1, it has a lead storage part 302a for storing a plurality of writing leads, and the upper end of a small hole 304 formed in the bottom of the container 302 communicates with the lead storage part 302a,
The lower end of the small hole 304 is open to the lower surface of the container 302. A tapered surface is formed at the bottom of the lead storage section 302a, and the tapered surface allows one of the writing leads 30 in the lead storage section 302a to be shaped like a pipe and slidably fit into the small hole 304. It is configured to be guided within a core guide 306. 308 is the stocker 3
00 is a rocking plate rotatably supported by a shaft 310, and the core guide 3 is mounted on the upper surface of the top plate portion 308a formed on this rocking plate.
A plate portion 306a integrally formed with 06 is placed on it by its own weight. The swing plate 308 has a spring member 312
As a result, the force is applied in a counterclockwise direction around the shaft 310 in FIG. 1, and as shown in FIG. It is in bullet contact. The top plate portion 308a includes:
As shown in FIG.
A guide hole 316 is transparently provided to match the shaft hole of 06.

Reference numeral 318 indicates a remaining core holder provided in the stocker 300.

Next, the operation of this embodiment will be explained.

When a large number of leads 30 are inserted into the lead storage container 302, one of them is guided by the tapered surface and automatically inserted into the lead guide 306. When the lead of the writing instrument P held by the drawing head 10 wears out and becomes short, the writing instrument P must be supplied with a new lead. In this case, the controller of the X-Y plotter transitions to the core automatic feed program. When this program is started, first, the stocker drive motor is driven, the stocker 300 is rotated, and the lead storage container 302 storing the desired type of lead is moved to the Y rail 6 (see FIG. 6). It is located on an extension of the movement path of the drawing head 10 along.

Next, the drawing head 10 moves in the direction of the box 14 along the Y rail 6, and the writing instrument holder 12 of the drawing head 10
Box 1 of the drawing head 10 enters the inside of the box from the notch of the partition plate of the box 14 (see FIG. 6).
Due to the movement in the four directions, the end surface of the writing instrument holder 12 of the drawing head 10 pushes the lower part of the swing plate 308 as shown in FIG. Tilt clockwise around the center. Due to this inclination, the core guide 306 rises, and its upper end protrudes a predetermined length from the bottom surface of the core storage section 302a. Writing instrument holder 1 of drawing head 10
2 moves to a predetermined limit position in the box 34, the hole 316 in the top plate 308a of the rocking plate 308 exactly matches the shaft hole in the core guide 306, as shown in FIG. The writing lead 30 falls downward and 1 drawing head 1
The writing instrument P held in the writing instrument holding portion 12 of No. 0 is inserted into the lead insertion hole.

Next, the drawing head 10 moves Y in the direction opposite to the direction of intrusion.
It retreats along the rail and then shifts to drawing operation. As the drawing head 10 moves backward, the swing plate 308 returns to its original position due to the elasticity of the spring 312, and the core guide 306 also descends due to its own weight. This core guide 30
6 automatically guides one of the wicks 30 in the wick storage container 302 into the wick guide 306.

As is clear from the above description, the swing plate 3°8 and the hole 316 constitute a shutter, and the hole 316 and the core guide 30 constitute a shutter.
When the shaft holes 6 and 6 match, the shutter opens, and when they do not match, the shutter closes. The opening and closing of the shutter is performed by pushing and releasing the shutter of the drawing head 10.

〔effect〕

As described above, in the present invention, since the core storage container is provided on the machine body side, the weight of the drawing head can be reduced, and
Since the moving force of the drawing head is used for core replenishment, there is no need to provide a special drive device for the core supply device, and there are advantages such as miniaturization and cost reduction of the device.

[Brief explanation of the drawing]

1 is a side view, FIG. 2 is a side view, FIG. 3 is a front view, FIG. 4 is a plan view, FIG. 5 is a plan view, and FIG. 6 is an external view. -2... Aircraft, 4.
...Placement plate, 6...Y rail. 8...Paper, 10...Drawing head, 12.
...Writing instrument holding part, 14...Box, 30
0... Stocker, 3o2... Core storage container. 302a... Core storage section, 306... Core guide. 308... Rocking plate patent applicant Muto Kogyo Co., Ltd. Patent attorney M. Nishijima Stains 1, 2, 4, 9, 6

Claims (1)

[Claims] (1) A lead storage container having a lead storage part for storing a plurality of writing leads is provided on the body side, a shutter is provided at the bottom of the lead storage container, and the opening of the shutter allows the inside of the lead storage part to be opened. One of the writing leads falls downward, while the writing instrument holder of the drawing head is movable directly below the opening/closing part of the shutter, and the opening/closing operation of the opening/closing part of the shutter is controlled by the drawing head. When the center of the upper end surface of the writing instrument held by the writing instrument holding section of the drawing head is located directly below the opening/closing section of the shutter, the shutter is An automatic writing lead supply device for an X-Y plotter, characterized in that the opening/closing part is configured to open.