JPS597638A - Sheet work pickup mechanism - Google Patents

Abstract

PURPOSE:To make a piece of sheet work attractable without fail, by installing a packup mechanism, which transfers the sheet work to a guide pin by suction force from a support pin inside a supply magazine, in a conveying device feeding a color scanner with the sheet work. CONSTITUTION:A guide pin 4 and a suction cup 3 of a pickup part 2 are supported by respective supporting parts 29 and 30 and energized to operate in a direction toward a supply magazine 14 by means of elastic members 25 and 26. When this pickup part 2 catches a piece of sheet work 16, first the guide pin 4 is moved in a direction toward the sheet work 16 by dint of a motor and then comes into contact with a support pin 15. Detecting that the guide pin 4 is stopped, the suction cup 3 starts moving forward by the motor and then gets retreating immediately after picking up the sheet work 16. In time of retreating, a shade 27 is detected by a light sensor 28 whereby the suction cup 3 once stops. In time of this stoppage, the sheet work 16 also stops at a position contacting a keep plate 6. Afterward, a timer operates and the guide pin 4 and the suction cup 3 are simultaneously retreated therefrom 0.5sec later.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mechanism for capturing and transporting sheet material one by one. More specifically, the present invention relates to a mechanism for supplying a photosensitive phase material for decomposition recording to a color scanner, which is a type of photoelectric scanning image recording medium, and then for receiving it.

The color scanner described above is a device for scanning color separation plates for photolithography, which has been widely used in recent years.

This color scanner uses photographic photosensitive paulownia material for disassembly recording (hereinafter referred to as "
One method of supplying paulownia wood (referred to as "sheet paulownia wood") and then receiving it was as described below.

That is, a cassette (dark box) containing one sheet material is loaded into a predetermined position of the scanner, and the sheet material is directly fed from the loaded cassette to the drum for winding on the output side of the scanner. Then, after the scanner was activated and the supplied sheet material was exposed to photons, the sheet material would be placed back into the cassette.

Also, in other methods, since the material being handled is a photosensitive material, a method similar to the above method in which light is blocked has been used.

However, with this method, one cassette must be attached and detached each time one sheet of material is supplied.
It was inefficient.

What was proposed was a system that uses a supply magazine that stores multiple sheets of material to capture the sheets one by one, transport them to a predetermined position, and then pick up the sheets using a receive magazine. It is a device. With this configuration, the above-mentioned drawbacks can be overcome. Hereinafter, one embodiment implementing the above-described configuration will be described in detail.

FIG. 1 is a side view of a sheet material conveying device having the above structure, and FIG. 2 is a flowchart thereof.

The operation of the sheet material conveying device 1 shown in FIG. 1 will be explained in order below.

When the power switch S1 is turned on, the power lamp P1 lights up. At this time, the control section 1a determines whether the sheet material capturing section 2 is at the start position A, the supply magazine 14 is set, and the shutter 14a is opened.
If the supply magazine 14 contains the sheet material 16 or if the receive magazine 17 is set and its shutter 1 is
8 is open? As a result, the start lamp P2 lights up. If this start lamp P2 does not light up, you can determine which part is defective by looking at the supply magazine display lamp P3, the receive magazine display lamp P4, and the lamp P6 that indicates the presence or absence of sheet material in the supply magazine. You can know.

The start lamp P2 lights up and the start switch S
2, the vacuum pump and the electromagnetic valve for leakage are activated, and the plurality of suction cups 6 are in a state where they can suction the sheet material 16. At the same time, a plurality of guide pins 4 and suction cup rollers are connected to the motor M2. M.

The suction cup 3 moves forward in the direction of the paulownia sheet material 16 by a drive system such as the above, and the suction cup 3 contacts and suctions the sheet material 16. After the confirmation mechanism confirms that the suction has been completed completely, the suction cup 3 receives the confirmation signal. It retreats from the supply magazine 14 and stops at the start position A. At the time of this capture, if a portion of the suction cup 6 leaks due to the small size of the sheet material, a solenoid valve is configured to operate at 5V to stop the leak.

When the capturing section 2 is stopped at the start position A, the movable electrode 5, which is a plate for detecting the number of sheet materials, is activated to confirm whether or not only one sheet material 16 has been attracted. At this time, if only one sheet material 16 is suctioned, it is possible to proceed to the next step. But if that's not the case,
The device is configured to repeat the above-described capturing operation to pick up only one sheet. Furthermore, if the desired acquisition is not achieved even after repeated acquisition attempts, a predetermined number of times is set and a warning is issued by a buzzer or the like.

As described above, when there is only one sheet material 16, the operating state of the movable bridge 5 is maintained to supplementarily hold the sheet material 16, and the screw punch 7 is rotated by the motor M1.
Through the female thread 2a%r corresponding to the screw punch 7, the catching part 2 starts to move (I) and stops at the L part stop position B. At this time of stopping, the catching section 2 is detected by a sensor provided at the stopping position, and at the same time as the motor M1 is stopped, the electromagnetic brake 16 is activated to stop the motor M1 at the correct stopping position. In addition, the moving speed (one-way speed) of the catching section 6 is made to decrease just before the stopping position, so that the
It is constructed to ensure that it stops at a precise position.

When the capturing section 6 stops at the position B, the movable electrode 5
is released and the sheet material 1 is placed on the drum 66 of the scanner filter 5.
An indicator lamp P5 indicating that it is OK to load 6 is lit.

Checking the display lamp P5, raise the operating lever of the scanner 65, set the drum receiver in the insertion position (stop at the fixed position), and at the same time, the bushing rod filter 8 moves in the direction of the arrow as shown in the figure. The signal causes the guide pin 4 and the suction cup 3 to simultaneously start moving forward toward the drum. The guide 9 pin 4 is the drum 36V:, the pin 6 provided
7, the suction cup 6 is stopped from moving forward, and the suction of the sheet material 16 is released by stopping the vacuum pump, etc., and the holding plate 6 moves forward in the trim direction to move the sheet material 16 to the pin 57VC. Fit into it. Thereafter, the capturing section 2 retreats to the position B and stops. As the sheet material 16 is fitted into the pin 67 of the drum 66, the vacuum gauge of this trim 66, which adsorbs the sheet material using a vacuum method, moves a little, and after confirming this, lower the aforementioned operating lever to the middle position. .

Start winding the sheet material 16. after that.

After confirming that the sheet material 16 has been adsorbed to a certain extent by the drum 66 and that the vacuum gauge has reached one level further, perform the above operation. further lower. During operation of the operating lever, the capturing section 2 is accurately stopped at the starting position A in the same manner as in the above-mentioned uphill position.

The exposure indicator lamp P7 and the line light buzzer are turned on.

Check this fog light indicator lamp and buzzer, and scan the scanner 65.
Exposure operation? Let's do it.

After the exposure of the sheet material 16 is completed, the drum 66 is reversely rotated by the operation lever to peel the sheet material 16 from the side drum 36. The peeled sheet material 16 is transferred to a conveyance path 69
feed roller 1 driven by motor M4.
9. It is stored in the receive magazine 17 via 19a. Further, upon detecting that the motor M4 is stored, the motor M4
is stopped, one counter is added to count the number of sheet materials, the start OK lamp P-2 is lit, and the next sheet material 16 can be captured.

Note that if this device is cut off during operation due to a power outage or erroneous operation, and then turned on again, the l1ll'! The engine automatically returns to the starting position, and when the other start conditions mentioned above are met, the engine is ready for the next start. It goes without saying that this device is completely shielded from light from outside.

This device operates as described above, and an object of the present invention is to ensure that the sheet material can be reliably captured when the capturing section (means) such as the suction cup captures the sheet material. It is something to do.

That is, a capturing means consisting of a plurality of suction cups or the like connected to a vacuum pump is inserted through a support pin provided on the bottom of the supply magazine, and captures a plurality of stacked sheet materials one by one. In the mechanism adapted to convey the sheet material to a predetermined position, the catching means has a plurality of guide tones and a holding plate inserted into the guide bins, and when capturing the sheet material, the guide bins are coaxial with the support pins. After moving forward toward the sheet material from the position of line E and contacting the support pin, the suction cup advances parallel to the guide pin, and after capturing the sheet material, the suction surface of the suction cup It retreats to the same plane as the sheet material contacting surface of the presser plate and stops for a moment.

The above object can be achieved by the sheet material capturing mechanism characterized in that the guide 9 bin and the suction cup are configured to retreat simultaneously after a predetermined time.

Hereinafter, embodiments of the present invention will be described using FIG.

FIG. 6 is a schematic diagram showing the capture mechanism of the present invention.

In the figure, the guide bin 4 and the suction cup 6 of the catching section (means) 2 are supported by the respective supporting sections 29 and 60, and are urged toward the Xabry magazine 14 by the elastic members 25 and 26. When this capturing section 2 captures the sheet material 16, the guide pin 4 is first moved by the motor "a" (
(not shown) in the direction of the sheet material 16, and the sheet material 16 in the magazine 14 is
[It comes into contact with the inserted support pin 15 as shown in Figure 1].

When the guide pin 4 detects that the guide pin 4 has stopped, the suction cup 6 starts the front part by the motor M2 (not shown in FIG. 1), and when the sheet material 16 is sucked and captured, the suction cup 3 retreats from the supply magazine 14. Start.

When the suction cup 5 is retracted, the light shielding plate 27 provided on the supporting portion O of the suction cup 6 is detected by the optical sensor 28 provided on the support of the capturing portion 2, and the suction cup 6 is moved in one direction. Stop. At this time of stopping, the sheet material 16 stops at a position where it comes into contact with the presser plate 6 into which the guide pin 4 is inserted, as shown in the figure.

That is, the suction surface of the suction cup 6 retreats to the same plane as the contact surface of the old sheet material of the presser plate 7 and then stops. Thereafter, the guide pin 4 and suction cup 6 are configured to retreat simultaneously 0.5 seconds after the timer operates.

After one trial, the sheet material 16 was attracted to the suction cup 6 by the structure according to the present invention, and then the support pin 15
Since the state in which the guide bin 4 and the suction cup 6 start to move back at the same time as described above, the guide bin 4 and the suction cup 6 are This eliminates the relative positional deviation of the sheet material 16, prevents the sheet material 16 from falling off due to this relative positional deviation, and ensures reliable capture of the sheet material 16.

[Brief explanation of the drawing]

Figure 1 is a side view of the device to which the present invention is applied, and Figure 2 is the side view of the device to which the present invention is applied.
FIG. 1 is a flowchart of the apparatus shown in FIG. 1, and FIG. 6 is a schematic diagram showing one embodiment of the present invention. 1... Sheet material conveyance device 2... Catching section 6... Suction cup 4... Guide bin 6... Holding plate
14... Supply magazine 15... Support pin 16... Sheet material 25.26...
Bullet shock 27-... Light shielding plate 28... Light sensor
29, 30...Support part (other names)

Claims (1)

[Claims] A capturing means consisting of a plurality of suction cups connected to a vacuum pump is inserted into the support pin provided on the bottom of the supply magazine, captures the stacked sheet materials one by one, and holds them in a predetermined position. In the mechanism configured to convey the sheet material, the capturing means has a plurality of guide bins and a presser plate inserted into the guide bins, and when capturing the sheet material, the guide bins are positioned coaxially with the support bins. After the suction cup advances toward the sheet material and contacts the support bin, the suction cup moves forward and captures the sheet material, and the suction surface of the suction cup is flush with the sheet material contacting surface of the presser plate. A sheet material capturing mechanism characterized in that the guide pin and the suction cup are configured to retreat at the same time after a predetermined period of time.