JP2599178B2 - Sheet supply device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention takes out sheet-like objects stored in a sheet storage unit such as a stocker one by one from a sheet storage unit and supplies the sheets to a sheet-conveying path. The present invention relates to an apparatus for supplying a sheet-like material.

[Conventional technology]

Generally, when a film is to be automatically developed, as shown in FIG. 10, a film F is connected to a flexible leader L formed of a synthetic resin sheet, and the leader L is placed in an automatic developing apparatus in advance. Film F is sent.
For feeding the film F, the reader L is provided with a square hole H engageable with a feed sprocket of the automatic developing device.

Further, the film F after the development processing taken out of the developing device is stored in a film stocker, taken out of the stocker, and cut off from the reader L.

[Problems to be solved by the invention]

By the way, conventionally, since the film of the film stocker is manually taken out and sent to the next step of separating the film from the reader, there is a problem in workability.

In general, there is a supply device that takes out sheet-like materials contained in a stocker one by one, and there is a supply device that sucks and takes out the sheet-like materials in the stocker by a suction member to which a suction force is applied. Such a supply device includes a suction device such as an air suction pump for applying a suction force to the suction member, a passage such as a hose communicating the suction device with the suction member, a valve for opening and closing this passage, and a valve control device. For example, many additional facilities are required, and there is an inconvenience of increasing the size.

SUMMARY OF THE INVENTION An object of the present invention is to provide a feeding device having a very simple structure capable of reliably taking out sheet-like objects such as a leader housed in a stocker one by one.

[Means for solving the problem]

In order to solve the above problems, in the present invention,
In an apparatus for taking out sheet-like objects stacked and stored in a sheet storage unit one by one and supplying the sheet-like objects to a conveyance path, a piston is provided on a cylinder support provided so as to be able to freely contact and separate from the sheet-like objects. And a spring incorporating a spring that presses the piston toward the rear end of the cylinder, and a suction member having a suction hole connected to the inside of the cylinder is provided at the front end of the cylinder facing the sheet-like material. Pushing means for moving the piston to the forward position against the pressing of the spring, holding means for holding the piston at the advanced position, and release of the holding at the suction position where the suction member contacts the sheet-like material. This adopts a configuration provided with a releasing means.

[Action]

Holding means for holding the piston at the tip end position of the cylinder by the action of the releasing means when the cylinder support moves toward the sheet-like material accommodated in the sheet accommodating portion and the suction member comes into contact with the sheet-like material. Is released. When the engagement is released, the piston is pushed by the spring and moves toward the rear end of the cylinder, so that the pressure inside the cylinder decreases and the sheet-like material is sucked by the suction member.

After the sheet-like material is sucked, the cylinder support is moved in a direction away from the sheet storage portion, and the movement removes the sheet-like material from the sheet storage portion. When the sheet-like material is conveyed to the sheet conveying path, the pushing means moves the piston toward the tip of the cylinder, and the movement of the piston pushes the air inside the cylinder into the suction member. The object is released from adsorption.

〔Example〕

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 to FIG. 4 show a first embodiment of a sheet supply apparatus according to the present invention. As shown in the figure, the reader L as a sheet-like material to which the film F is connected is housed in a state where the leader L is overlaid on a stocker 1 as a sheet housing unit.

Here, the stocker 1 is not shown in detail in FIG.
The two plate bodies 2 formed in a shape are arranged in parallel at a required interval between the plate bodies 2, and both sides of the leader L overlapped with each other by the front inclined plate portion 2 a of the plate body 2. In addition, both ends of the lower side of each reader L are supported by the rear inclined plate portion 2b.

The stocker 1 is located below the front inclined plate portion 2a of the plate body 2.
One support plate (one support plate is omitted in the figure) 3 for supporting the leader L taken out of the apparatus is arranged in parallel with a required interval between the side edges.

A drive motor 4 is provided below the support plate 3, and a cylinder support 6 is attached to a rotation shaft 5 of the drive motor 4.

The cylinder support 6 rotates by the operation of the drive motor 4 and moves from between the pair of support plates 3 toward the reader L supported by the stocker 1. A cylinder 7 is attached to the tip of the cylinder support 6, and a suction member 8 is fixed to the tip of the cylinder 7 facing the reader L.

As shown in FIG. 4, the suction member 8 has a concave portion 9 on the surface facing the reader L, and the concave portion 9 and the inside of the cylinder 7 communicate with each other by a suction hole 11 formed in the suction member 8.

A piston 12 is slidably assembled inside the cylinder 7, and a spring 13 incorporated above the piston 12 presses the piston 12 toward the rear end of the cylinder 7.

A piston rod 14 formed on the lower surface of the piston 12 faces outside from the rear end of the cylinder 7, and an engagement member 15 is attached to a lower end of the rod 14.

An intermediate portion of an L-shaped engaging claw 17 is swingably attached to the cylinder support 6 via a pin 16, and a hook portion 18 provided at one end of the engaging claw 17 is The engagement between the hook portion 18 and the engagement member 15 keeps the piston 12 at a position located at the tip of the cylinder 7.

A spring 19 is incorporated between the other end of the engaging claw 17 and the cylinder support 6, and the spring 19
The engaging claw 17 is deflected in a direction in which the engaging claw is engaged with the engaging member 15. A tapered surface 20 is formed on the lower surface of the hook 18 of the engaging claw 17, while a tapered surface 21 is provided on one side of the upper surface of the engaging member 15. Therefore, by moving the disengaged engaging member 15 toward the cylinder 7, the engaging member 15 is moved.
Since the tapered surface 21 of the hook presses the tapered surface 20 of the hook 18, the engaging claw
When the swinging member 17 swings in the disengaging direction and the engaging member 15 passes through the hook portion 18, the engaging claw 17 swings in the engaging direction, and the hook portion 18 engages with the engaging member 15.

The engaging claw 17 is swung in the disengaging direction when the suction member 8 comes into contact with the leader L in the stocker 1. In the embodiment, as the release means 30, the rear end of the lever 31 is fixed to the other end of the engaging claw 17, and the distal end of the lever 31 is positioned at substantially the same level as the suction surface of the suction member 8. When the tip of the lever 31 contacts the leader L in the stocker 1, the engaging claw 17 is swung in the disengaging direction.

Instead of the lever 31 as described above, a stopper is provided in a moving path in which the suction member 8 moves toward the reader L in the stocker 1, and the other end of the engaging claw 17 abuts on the stopper. The engaging claw 17 may be swung in the disengaging direction.

By disengagement of the engaging claw 17 and the engaging member 15, the piston 12 in the cylinder 7 is pushed by the spring 13 and moves toward the rear end of the cylinder 7, and the piston located at the rear end of the cylinder The cylinder 12 is moved toward the tip of the cylinder 7 by the action of the pushing means 40 provided below the support plate 3.

The push-in means 40 comprises a stopper shaft 41, which is arranged below the support plate 3 at a position where the lower surface of the engaging member 15 abuts.
When the engaging member 15 is pushed up by the stopper shaft 41 and the engaging claw 17 is engaged with the engaging member 15, the suction member 8 is moved to the supporting plate. 3 is located slightly below the lower surface.

One end of a link 50 is connected to the rear end of the cylinder support 6, and the other end of the link 50 is connected to the middle of a holding arm 51 provided on the back of the rear inclined plate 2b of the stocker 1. ing. The rear end of the holding arm 51 is rotatably supported about a pin 52, and a shaft 53 slidably attached to the tip of the holding arm 51 is provided with a retaining ring 54 attached to the rear end.
Has been prevented by. A holding plate 55 is attached to the end of the shaft 53, and a spring 56 is attached to the outside of the shaft 53 between the holding plate 55 and the holding arm 51.

The supply device shown in the first embodiment has the above structure,
FIG. 2 and FIG. 3 show the operation state in which the leader L in the stocker 1 is taken out on the support plate 3 in a stepwise manner.

As shown in FIG. 1, when the drive motor 4 operates in a state where the suction member 8 is positioned below the support plate 3, the cylinder support 6 rotates toward the reader L in the stocker 1 and the cylinder support 6 rotates. The holding arm 51 that is linked to the cylinder support 6 by the link 50 also rotates toward the stocker 1 about the pin 52.

As shown in FIG. 2, when the suction member 8 comes into contact with the leader L in the stocker 1, the pressing plate 55 also elastically comes into contact with the back surface of the stacked leader L accommodated in the stocker 1, and the leader L is moved. Prevent backward movement. Also, almost simultaneously with the contact of the suction member 8 with the leader L, the tip of the lever 31 is pressed against the leader L, so that the engaging claw 17 swings in the disengaging direction, and the hook 18 is engaged. It separates from the joining member 15. Therefore, the piston 12 moves toward the rear end of the cylinder 7 due to the elasticity of the spring 13, and the pressure inside the cylinder 7 decreases due to the movement of the piston 12, and the reader L is sucked by the suction member 8.

After the suction of the reader L, the rotation shaft 5 of the drive motor 4 rotates in the reverse direction, and rotates the cylinder support 6 toward the support plate 3. For this reason, the reader L sucked by the suction member 8
Is taken out of the stocker 1.

When the cylinder support 6 rotates to a position where the leader L is placed on the upper surface of the support plate 3, the engaging member 15 comes into contact with the stopper shaft 41, and the engaging member 15 is held stopped by the contact. The cylinder 7 is further lowered with respect to 15. Therefore, the cylinder 7 and the piston 12 move relatively, and the pressure inside the cylinder 7 increases due to the movement, so that the leader L is released from suction and is supported by the support plate 3.

At this time, the sensor PH shown in FIG. 4 detects the detection piece 42 attached to the side surface of the engagement member 15, and the detection stops the drive motor 4.

The leader L taken out on the support plate 3 is moved along the upper surface of the support plate 3 by a delivery member that is moved by the operation of the cylinder 57, for example, as shown in FIG. It is conveyed from 58 to an appropriate processing device 60 arranged in front of it.

5 to 8 show a second embodiment of the supply apparatus according to the present invention.
The following shows an example. In this embodiment, a bracket 72 and a drive motor 74 for a screw shaft 73 whose upper and lower ends are rotatably supported on the support base 71 provided below the support plate 3 are mounted. The screw shaft 73 is rotated by the driving of the motor 74, and the cylinder support 6 screwed to the screw shaft 73 is moved toward the reader L accommodated in the stocker 1.

Here, the stocker 1 is provided with a shelf plate on the opposite surface of the pair of side plates 75.
The shelf 76 is attached to support the both sides of the lower surface of the reader L. The support plate 3 of the leader L taken out of the stocker 1 is supported by the side plate 75.

Further, a plurality of cylinders 7 are supported by a cylinder support 6 in order to reliably take out the leader L from the stocker 1.

In order to prevent the leader L from being damaged,
A roller 32 is rotatably attached to the tip end of 31. Further, a pressing mechanism including a leader pressing plate and the like shown in the first embodiment is omitted. The other configuration and operation are the same as those of the first embodiment, and thus the description is omitted.

〔The invention's effect〕

As described above, according to the present invention, the sheet-like material adsorption member is provided so as to be able to freely contact with and separate from the sheet-like material such as the leader accommodated in the sheet accommodation portion such as the stocker. The objects can be taken out one by one without fail.

When the suction member is brought into contact with the sheet-like material, the holding of the piston is released by the operation of the release means, and the piston is moved toward the rear end of the cylinder by the elastic force of the spring, so that the suction force is applied to the suction member. Is generated, a suction device such as an air suction pump or the like can be dispensed with, and the whole can be reduced in size.

[Brief description of the drawings]

FIG. 1 is a longitudinal side view showing a first embodiment of a supply device according to the present invention, FIGS. 2 and 3 are side views showing the operating state of the same in a stepwise manner, and FIG. 4 is a cylinder of the same. FIG. 5 is a partially cutaway side view showing the mounting portion in an enlarged manner, FIG. 5 is a partially cutaway side view showing a second embodiment of the supply device according to the present invention, and FIG. 6 is a front view, FIG. FIG. 8 is a sectional view showing an operation state of the above in a stepwise manner, FIG. 9 is a schematic view showing an example of use of the above-mentioned supply device, and FIG. 10 is a perspective view of a reader to which a film is connected. DESCRIPTION OF SYMBOLS 1 ... Stocker (sheet accommodation part), L ... Leader (sheet-like material), 7 ... Cylinder, 8 ... Suction member, 11 ... Suction hole, 12 ... Piston, 13 ... Spring, 14 ... Piston rod, 15 ... engaging member, 17 ... engaging claw, 30 ... releasing means, 40 ... pushing means.

Claims (1)

(57) [Claims] An apparatus for taking out sheets one by one stacked and stored in a sheet storage unit and supplying the sheets to a sheet conveying path, wherein the cylinder is provided so as to be able to freely contact and separate from the sheet. Attach a cylinder that incorporates a piston and a spring that presses the piston toward the rear end of the cylinder to the support, and a suction hole that communicates with the inside of the cylinder at the front end of the cylinder that faces the sheet-like object. Pushing means for providing a member and moving the piston to a forward position against the pressing of the spring;
A sheet-like material supply apparatus, comprising: a holding means for holding a piston at the forward position; and a releasing means for releasing the holding at a suction position where the suction member contacts the sheet-like material.