JPH11139594A - Photographic film cartridge steel plate sheet supply device and control therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stably carry steel plate at high speed by lifting steel plate on the uppermost part of a sheet separating mechanism to an upper prescribed location by adsorbing the steel plate by a suction means, separating a suction pad by a steel holding means, peeling the steel plate from a prescribed location by a carrier means and carrying the steel plate to the next process. SOLUTION: On the uppermost part of a buffer 10, a sheet separating mechanism 30 is provided. A suction means 40 is provided with a plunger 42 which can be slid within a cylinder 41. When the cylinder 41 is lowered by a connecting link 49, a suction cup 44 lowers. Next, the cylinder 41 is raised by the connecting link 49 and also the suction cup 44 is raised up to a location D. When the suction cup 44 reaches a prescribed location C where steel plate stands by on the halfway, the steel plate is adsorbed by magnet 51 at the location and is separated from the suction cup 44. Next, a carrier conveyor 60 is operated, the steel plate which stands by at the location C is peeled and released from the holding from the magnet 51 at the location C by a pawl 63 for carrier and this steel plate is advanced to the next process.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a patrone sheet feeding apparatus for feeding a steel sheet used in a patrone for photographic film one by one to a patrone manufacturing apparatus or the like and a control method therefor.

[0002]

2. Description of the Related Art As shown in a partial side view of FIG.
A buffer 10J is provided above the outlet 32P,
The integrated steel plate in the buffer 10J is taken out from the outlet 32P.
It was supplied using a magnet or free fall against the nail 32J, but troubles such as removal of two sheets occurred frequently.

Further, such a supply device cannot be operated at a high speed and is not stable even at a low speed. Then, the supply of the integrated steel sheet was performed with the supply device stopped.

[0004]

As described above, the accumulation weight varies depending on the amount of the steel plate accumulated on the upper portion of the outlet 32P of the buffer 10J, and the unloading of one steel plate becomes unstable. I tended to.

SUMMARY OF THE INVENTION The present invention relates to a patrone sheet-feeding apparatus and a control method therefor, which can always take out one sheet of steel sheet in a well-balanced manner under predetermined conditions regardless of the number of accumulated steel sheets, and can supply stable steel sheets at high speed. The purpose is to provide.

[0006]

This object is achieved by the following (1) to (4).
This is achieved by any one of the technical means of (6).

[0007] (1) In a patrone steel sheet single-sheet supply apparatus which takes out the patrone steel sheets one by one from the buffer in which the patrone steel sheets are accumulated by using the vacuum pressure of the suction pad and supplies the patrone steel sheets to the next process, And a lifting table for sequentially raising the integrated steel sheets in accordance with the amount of the patrone steel sheet to be taken out, and a one-sheet separating mechanism above the buffer are provided, and the one-sheet separating mechanism is provided above the one-sheet separating mechanism. Suction means for adsorbing the uppermost steel sheet and lifting it to a predetermined upper position, steel sheet holding means for separating the suction pad of the suction means from the steel sheet while holding the steel sheet at the predetermined position, and removing the steel sheet from the predetermined position. A sheet feeding device for a patrone steel sheet, comprising: a conveying means for conveying the sheet to the next step. .

(2) The buffer lift is composed of a lower main lift and an upper auxiliary lift. When replenishing the integrated steel sheets, the main lift is switched from the main lift to the auxiliary lift to supply single wafers. The patrone sheet-fed sheet feeding apparatus according to the above mode (1), which is driven.

(3) In the single-sheet separating mechanism, a magnet having the same polarity is provided in a buffer guide portion on the opposite side of the steel plate above the buffer, and a separating claw is provided on the uppermost portion of the buffer adjacent to the magnet. The patrone sheet-fed sheet supply apparatus according to (1) or (2), wherein:

(4) The suction means has a cylinder and a plunger slidable in the cylinder, the plunger has a small-diameter rod extending concentrically downward, and an air suction hole is formed in the center. It is penetrated and formed in a pipe shape, a suction cup is provided at the lower part of the rod, a coil spring is provided concentrically on the rod between the mounting part of the suction cup and the lower part of the cylinder, and a coil spring is provided above the cylinder. Is provided with a suction port and a suction pump connected from the suction port via a hose, and further has a drive mechanism for vertically moving the cylinder up and down each time the steel sheet is supplied (1). The patrone steel sheet single-wafer supply apparatus according to any one of Items (1) to (3).

(5) A sensor is attached to the one-sheet separating mechanism described in (3), and the number of steel plates in the one-sheet separating mechanism is detected. Is smaller than the standard stroke, and when the number of sheets is smaller than the standard value, the lift amount of the elevator is made larger than the standard stroke so that the number of steel sheets in the one-sheet separating mechanism is always maintained in a predetermined range. A method for controlling a patrone sheet-fed sheet feeding apparatus, comprising:

(6) A sensor is provided in the steel sheet holding means described in (1), and the number of the extracted steel sheets is counted.
(5) controlling the amount of elevation of the elevator according to the quantity;
A control method for a patrone sheet-fed sheet feeding apparatus, wherein the lift amount of the lift table is finely corrected by the control method described in the paragraph.

[0013]

FIG. 1 is a block diagram showing an embodiment of the present invention.
This will be described with reference to the side sectional view of FIG. However, the present invention is not limited to these. In the following description, although there are definite expressions for terms and the like, they show preferred examples of the present invention, and do not limit the meaning of the terms of the present invention and the technical scope.

A buffer 10 including a main lift 11, an auxiliary lift 21 and a one-sheet separating mechanism 30, a suction means 40, and a suction pad (suction pad) are provided on a main body frame 3 of the patrone sheet-feeding apparatus 1. A steel sheet holding means 50 for holding the steel sheet apart and a conveying means 60 for transferring the separated steel sheet to the next step are attached. The main lift 11 has a steel plate stack 12 on which a spiral shaft 13 is mounted in the center and a gear 14 having a female screw fitted to the spiral shaft 13 connected to a drive transmission device from a drive motor 15. Steel plates are accumulated on the accumulation table 12 of the main elevator 11 and can be moved up and down while being guided by the guide frame 10A of the buffer 10.

An auxiliary lift 21 is mounted above the main lift 11 so as to surround the guide frame 10A, and a rack 22 is provided on a part of the side wall thereof. The pinion 23 drivingly connected to the gear 24 is engaged with the pinion 23 so as to be able to ascend at the same speed as the main lift 11. A plurality of cylinders 25 are provided below the auxiliary elevator 21, and a steel plate receiving pin 26 can enter and exit the cylinder 25. When the accumulation amount of the steel plate becomes small, the steel plate receiving pin 26 is actuated to the outlet side to receive the accumulated steel plate and switch to the ascending movement of the main elevator 11 to be the same as the main elevator 11. Keep rising at speed. Meanwhile, the main lift 11 starts descending at a high speed, descends to the lower part of the main body frame 3, loads a new integrated steel plate from the loading port 17 provided therein, aligns the same, and ascends again at a high speed after completion of the loading. After catching up with the auxiliary lifting platform, the operation returns to the normal ascending speed. On the other hand, at this time, the auxiliary elevator 21 and the cylinder 25 are operated, and the steel plate receiving pin 26 is also on the entering side. The auxiliary elevator 21 is driven by the drive motor 24 to descend and return to the original position. I have to wait. In this way, the replenishment of the integrated steel sheet is performed efficiently without stopping the operation of the supply device.

Of course, only the main elevator 11 can be used as the elevator, and at this time, the supply of the integrated steel sheets is performed by stopping the operation of the entire patrone steel sheet feeding apparatus 1, so that the operation rate is low.

A single-sheet separating mechanism 30 is provided at the uppermost portion of the buffer 10, and magnets 31 of the same polarity are embedded in two opposing surfaces of the guide frame 10A of the buffer 10, and the uppermost steel plate is formed of two to three. It becomes a separated state in which four sheets are lifted. Further, it is more preferable that a slit nozzle 33 for blowing air is provided on the side surface because of the state of floating and separation. Also, this slit nozzle 33
A sensor 34 is provided adjacent to the steel plate so that the number of floating steel plates can be counted. As the sensor, an eddy current sensor, a proximity sensor, an air flow sensor, a CCD image sensor, or the like is preferably used.
The uppermost level (height) of the integrated steel plate can be determined based on the number of the lifts, and the main lift 11 or the auxiliary lift 2 can be determined.
1 is increased or decreased. In other words, when the number of rising surfaces is large, the rising speed is reduced accordingly, and when the number of rising surfaces is small, the rising speed is increased accordingly. A stopper claw 32 is provided at the uppermost part of the one-sheet separating mechanism 30. It operates in such a structure, and is controlled by such a configuration, so that even if the amount of accumulated steel sheets is large, it is possible to take out one stable sheet, and it is almost unmanned after loading the accumulated steel sheets. Automatic operation becomes possible.

The suction means 40 comprises a cylinder 41
A plunger 42 slidable therein, the plunger 42 having a small diameter rod 42 extending concentrically downward.
A, a suction hole 43 of air is penetrated in the center part, and it is formed in a pipe shape, and a flexible rubber-like suction cup (suction pad) 44 is provided below the rod 42A,
The diameter of the suction cup 44 is preferably 35 to 50% of the width of the steel sheet. The diameter of the suction hole 43 is preferably 5 to 7% of the diameter of the suction cup 44. A coil spring 46 is provided concentrically on the rod between the mounting portion of the suction cup 44 and the lower portion of the cylinder 41. Above the cylinder 41, a suction port 45 and a hose 45A from the suction port 45 are provided. And a suction pump for connection. Further, there is provided a drive mechanism for moving the cylinder 41 up and down along a cylinder elevating guide 47 via a link 49 connected to a connecting pin 48 connected to the cylinder 41 every time the steel sheet is fed.

When the cylinder 41 is lowered by the connecting link 49 in this manner, the suction cup 44 is moved by the one-sheet separating mechanism 30.
In order to absorb the variation in the position of the uppermost steel plate, the steel plate is lowered so as to be pushed down by 2 to 3 mm. However, the plunger 42 begins to be sucked and the plunger 42 is caused by the negative pressure of the hollow portion 45B of the cylinder 41. Since the suction start position rises from the position A to the position B at a stretch, the uppermost steel plate and the steel plate immediately below the uppermost steel plate are not pressed against each other, and the phenomenon of taking out two sheets does not occur. Further, at this time, the suction cup 44 does not receive a large opportunistic force, and therefore has high durability. As a result, the uppermost steel sheet sucked by the suction cup 44 is detached while being bent from the stopper claw 32 and moves to the position B. From this state, the cylinder 41 is raised by the link 49, and the suction cup 44 is also raised to the position D.

On the way, when the steel sheet reaches a predetermined position C where it stands by, it is attracted by the magnet 51 at that position and is separated from the suction cup 44. A sensor 53 (appropriate proximity sensor) is also placed at the position C in addition to the magnet 51, and the used amount is stored and counted for each steel plate. According to the count amount, the elevator (main elevator 1)
1 or the auxiliary lift 21) is controlled mainly, and the adjustment amount is further finely corrected by the detection amount of the sensor 34.

Next, the conveyor 60 is operated, and the steel plate waiting at the position C by the transfer claws 63 provided at equal intervals on the chain 62 wound around the drive wheel 61 is moved to the position C. Is released from the holding of the magnet 51 at the position of, and proceeds to the next step. Note that another suction means may be provided instead of the magnet 51.

In this way, continuous unloading and transporting of the steel sheet is performed without interruption, and such an operation is performed with a substantially constant force relationship, so that it is much faster than the conventional intermittent operation. And stable operation is performed. Therefore, the supply can be performed at a speed several times higher than the conventional one. In addition, the durability of the suction pad (sucker) is also improved, so that the number of durable shots is greatly increased.

[0023]

According to the present invention, a patrone steel sheet feeding apparatus and a control method thereof can stably perform a patrone steel sheet at high speed.

Further, since the supply of the integrated steel sheets can be performed while the supply device is operated, the operation efficiency is extremely high.

Further, the amount of the integrated steel plate can be increased as much as possible, and the operation is stable, so that the automatic operation close to the unmanned operation becomes possible after the loading.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing an example of an embodiment of a patrone steel sheet single-sheet feeding apparatus according to the present invention.

FIG. 2 is a partial cross-sectional view showing a single steel sheet take-out part of a buffer of a conventional steel sheet supply device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 patrone steel sheet single-sheet feeder 3 main body frame 10 buffer 10A guide frame 11 main elevating table 12 stacking table 13 spiral shaft 14 female screw gear 15 driving motor 21 auxiliary elevating table 22 rack 23 pinion 24 drive motor 25 cylinder 26 steel plate receiver Pin 30 Single-sheet separation mechanism 31 Same pole magnet 32 Stopper claw 34, 53 Sensor 40 Suction means 41 Cylinder 42 Plunger 43 Suction hole 44 Suction pad (sucker) 45 Suction port 45B Cavity 46 Coil spring 47 Cylinder elevating guide 48 Connecting pin 49 Connecting link 50 Steel plate holding means 51 Magnet 53 Proximity sensor 60 Transport means 61 Drive wheel 62 Chain 63 Claw

Claims (6)

[Claims] 1. A patrone steel sheet feeding apparatus which takes out patrone steel sheets one by one from a buffer in which patrone steel sheets are accumulated using vacuum pressure of a suction pad and supplies the patrone steel sheets to a next process. A take-out port, a lifting table for sequentially raising the integrated steel sheets in accordance with the amount of the patrone steel sheet to be taken out, and a one-sheet separating mechanism above the buffer are provided, and a top part of the one-sheet separating mechanism is provided above the one-sheet separating mechanism. Suction means for adsorbing the upper steel plate and lifting it to a predetermined upper position, steel plate holding means for separating the suction pad of the suction means from the steel plate while holding the steel plate at the predetermined position, and peeling the steel plate from the predetermined position. A sheet feeding device for a patrone steel sheet, comprising: a conveying means for conveying to a next step. 2. The buffer lifting platform includes a lower main lifting platform and an upper auxiliary lifting platform. When the stacked steel sheets are supplied, the buffer is switched from the main lifting platform to the auxiliary lifting platform to drive the single wafer supply. The patrone sheet-fed sheet feeding apparatus according to claim 1, wherein the sheet is supplied. 3. The one-sheet separating mechanism is provided with a magnet of the same polarity in a buffer guide portion on the opposite side of the steel plate above the buffer, and a separating claw is provided on the uppermost portion of the buffer adjacent to the magnet. The patrone sheet-fed sheet feeding apparatus according to claim 1 or 2, characterized in that: 4. The suction means has a cylinder and a plunger slidable in the cylinder, the plunger has a small-diameter rod extending concentrically downward, and an air suction hole passes through the center. The lower part of the rod is provided with a suction cup, a coil spring is provided concentrically on the rod between the mounting part of the suction cup and the lower part of the cylinder, and above the cylinder. The suction port and a suction pump connected to the suction port via a hose are provided, and further comprising a drive mechanism for vertically moving the cylinder up and down each time the steel sheet is fed. 4. The patrone steel sheet single-wafer supply apparatus according to any one of 3. 5. A sensor is attached to the one-sheet separating mechanism according to claim 3, and the number of steel sheets in the one-sheet separating mechanism is detected. When the number of sheets is larger than a standard value, a rising amount of the lift table is standardized. When the number of sheets is smaller than the standard value, when the number of sheets is smaller than the standard value, the lift amount of the lift table is set to be larger than the standard stroke, and control is performed so that the number of steel sheets in the one-sheet separating mechanism is always maintained within a predetermined range. A method for controlling a patrone sheet-fed sheet feeding apparatus, comprising: 6. The control method according to claim 5, further comprising the step of: providing a sensor in the steel sheet holding means according to claim 1, counting the number of the steel sheets taken out, controlling the amount of elevation of the lifting platform according to the number, A control method of the patrone sheet-fed sheet feeding apparatus, wherein the lift amount of the lift table is finely corrected by the method.