JPH079156Y2 - Photosensitive lithographic printing plate loading position positioning device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a photosensitive lithographic printing plate loading position positioning device for positioning the photosensitive lithographic printing plate at a predetermined loading position.

[Prior Art] A plurality of photosensitive lithographic printing plates used in a newspaper press or the like are stacked in a multi-stage manner, and are loaded in a photosensitive lithographic printing plate printing and printing apparatus to print an image.

As shown in FIG. 3, a photosensitive lithographic printing plate (hereinafter referred to as “PS plate”) 10 in which a plurality of sheets are stacked in multiple stages is bound by a string 12 and is a plate of a carrying device (so-called skid) 14.
It is placed on 16 and shipped together with this board base tied with a string 12. From this state, the string 12 is unwound, and the carrying device 14 is lifted by a so-called hand lifter or the like, inserted into the loading section of the photosensitive lithographic printing plate printing apparatus, and loaded.

As shown in FIG. 3, a pair of rails 18 and 19 having different top shapes are arranged in a loading portion (not shown). The carrier device 14 is placed on the rails 18 and 19 and then inserted into the loading position. Was decided.

In this loading, the pair of rails 20 and 21 provided on the lower surface of the plate base 16 of the carrying device 14 correspond to the rails 18 and 19 of the loading section, and the insertion direction is determined.

[Problems to be Solved by the Invention] However, in the above-described conventional positioning, the insertion direction of the plate base 16 into the loading portion may be reversed, and in this case, the position of the plate base 16 in the height direction is different. However, there is a problem that the loaded PS plate 10 cannot be supplied into the main body of the printing apparatus.

Further, since it is not known how much the plate base 16 is inserted into the loading portion, the loading position in the insertion direction of the plate base differs each time the loading is performed, and the PS plate 10 cannot always be loaded at the same position. Therefore, it is necessary to move the rails 18 and 19 on the rails 20 and 21 to position the insertion position at an appropriate position, and this work is complicated.

If a stopper with a spring is attached to the main body side at the back of the loading section, the plate base 16 on which a large number of PS plates 10 are mounted is heavy, and if the plate base 16 hits the stopper when the plate base 16 is inserted, the PS plate 10 will be inertial force. There was a problem of causing the load to collapse.

In consideration of the above facts, the present invention provides a photosensitive lithographic printing plate loading position positioning device capable of easily positioning the photosensitive lithographic printing plate at a predetermined position of the loading portion of the photosensitive lithographic printing plate printing apparatus. Is the purpose.

[Means for Solving the Problems] In the present invention, there is provided a photosensitive lithographic printing plate loading position positioning device for positioning a photosensitive lithographic printing plate at a predetermined loading position when loading the photosensitive lithographic printing plate into the printing device. A plate base on which a plate is placed and inserted into the loading unit of the printing apparatus, and whether or not the insertion direction of the plate base into the loading unit is a normal insertion direction is detected and the plate base is loaded into the loading unit. An insertion position notification means for detecting the position in the insertion direction and notifying that the plate base has been inserted into a predetermined insertion position, and the plate base inserted into the position in the predetermined insertion direction by the insertion position notification means are mounted. And a positioning unit that positions and positions it at a predetermined position.

The insertion position notification means may be configured to have a notification plate displayed on a notification window when a projection of the printing apparatus is inserted into a projection insertion hole provided in the plate base.

The positioning means may have a structure having a convex portion provided on the lower surface of the plate base and a concave portion provided on the loading portion.

[Operation] In the present invention having the above-described configuration, the plate base on which the photosensitive lithographic printing plate is placed is inserted into the loading portion of the photosensitive lithographic printing plate printing apparatus. At this time, the insertion position notification means detects whether or not the plate base is inserted into the loading section in the proper insertion direction and notifies it, and when the plate base is inserted into the predetermined position with respect to the insertion direction, the predetermined position is determined. Announce that it has been inserted into.

After the plate base is inserted into the regular insertion position, the plate base is lowered and the loading position is determined by the positioning means.

As a result, the photosensitive lithographic printing plate can be easily loaded in a predetermined loading position of the printing apparatus.

[Embodiment] FIG. 1 shows an example of a photosensitive lithographic printing plate transporting device (hereinafter referred to as "skid") 22 to which the photosensitive lithographic printing plate loading position positioning device according to the present invention is applied.

The skid 22 includes a plate base 24 and a pair of leg portions 26 provided on the lower surface of the plate base 24.

The plate base 24 has a flat plate shape and is formed larger than the outer shape of the PS plate 10, and the PS plate 10 is mounted on the upper surface of the plate plate 24.
A positioning plate 32 made of a resin plate such as vinyl chloride is fixed to the upper surface of the plate base 24. This positioning plate 32
One of the corners of the PS plate 10 placed on the board 24 is aligned with the corner of the position for positioning. A plurality of PS plates 10 are stacked and placed on the plate base 24 in multiple stages.

A projection insertion hole 24 is provided in the front portion of the plate base 24 in the insertion direction (arrow A direction) into the loading portion. The projection insertion hole 34 is provided at a position closer to one end than the center position in the width direction of the plate base 24, and penetrates along the insertion direction of the plate base. The protrusion insertion hole 34 is provided with a protrusion provided in the loading section.
36 is to be inserted. The protrusion 36 is movable in the vertical direction, and follows the vertical movement of the plate base 24.

As shown in FIG. 2, a shaft 38 is provided in the projection insertion hole 34.
Are arranged. A disc-shaped contact portion 40 is formed at the front end of the shaft 38 in the insertion direction. The tip portion of the protrusion 36 inserted into the protrusion insertion hole 34 comes into contact with the contact portion 40.

The end of the shaft 38 on the rear side in the insertion direction is connected to the insertion position positioning end notification plate 42. A rear side of the projection insertion hole 34 in the insertion direction is bent downward as shown in FIG. 2, and an end portion thereof is opened in a rectangular shape to form a notification window 46. The position positioning completion notification plate 42 is movable in the bent hole, and is guided in the bent hole to move from the horizontal state to the vertical state and from the vertical state to the horizontal state. .

A compression coil spring 44 is arranged in the middle of the shaft 38, and urges the shaft 38 forward in the insertion direction. For this reason, the insertion position positioning completion notification plate 42 is pulled inward of the projection insertion hole 34 and is in a horizontal state. Further, when the projection 36 comes into contact with the contact portion 40 and is further inserted against the urging force of the compression coil spring 44, the insertion position positioning completion notification plate 42.
Moves to the rear side in the insertion direction to a vertical position, and is exposed to the outside from the notification window 46. As a result, the position of the plate base in the loading direction in the insertion direction is detected, and the completion of the insertion is notified.

Four cones 48 are attached to the back side of the board 24.
The cone 48 has a tapered shape from the base to the tip. This cone 48 is a block placed in the loading station.
The block 50 is adapted to be inserted into a conical recess 52 provided in the block 50.

At the time of this insertion, even if the centers of the concave portion 52 and the cone 48 are slightly deviated from each other, the outer periphery of the cone 48 is inserted by sliding along the inner wall of the concave portion 52, so that the center positions of the respective cones 48 and the concave portions 52 become coaxial, and the plate base Positioning of 24 into the loading section is done. Further, this positioning is performed reliably because the plate base 24 has a conical shape even if the plate base 24 is displaced in any direction. That is, even if the plate base is inserted at a predetermined insertion position and then slightly deviated in the width direction and the insertion direction of the plate base, the concave portion 52 and the cone 48 ensure the positioning.

The leg portion 26 is made of a pipe bent in a U shape, and both ends thereof are fixed to the lower surface of the plate base 24. A space is provided between the board 24 and the floor by the legs 26. A hand lifter (not shown) is inserted into this space.

Next, the operation of the present invention will be described.

A plurality of PS plates 10 stacked on the plate base 24 are untied before being loaded into a loading unit of a photosensitive lithographic printing plate printing apparatus (not shown). In this state, the PS plate 10 together with the carrying device 14 is lifted by a hand lifter (not shown), carried to the loading section and inserted.

At the time of this insertion, the protrusion 36 of the loading portion is inserted into the protrusion insertion hole 34. When the insertion direction of the plate base 24 is the reverse direction, the protrusion 36 abuts the side part of the plate base 24, and prevents the plate base 24 from being inserted into the loading portion to prevent erroneous insertion. .

When the plate base 24 is further inserted into the loading portion, the tip end portion of the protrusion 36 comes into contact with the contact portion, and when the plate base 24 is further inserted against the urging force of the compression coil spring 44, the insertion position positioning end notification plate 42. Is exposed from the notification window 46. This confirms the insertion position of the plate base 24 into the loading section.

When the hand lifter is lowered at this position, the cone 48 is inserted into the recess 52 of the block 50. In this insertion, the outer periphery of the cone 48 is tapered even if the position of the plate base 24 is slightly displaced, so that the plate base 24 is placed at a predetermined position.

As a result, the plate base 24 can be easily inserted into a predetermined position of the loading section and can be positioned in a predetermined position.

Although the protrusion 36 is vertically movable in this embodiment, the protrusion 36 may be fixed by using the protrusion insertion hole 34 as a long hole in the vertical direction.

In this embodiment, a mechanical means is provided as the notifying means, but an electrically notifying means may be used.

[Effects of the Invention] As described above, the present invention is a photosensitive lithographic printing plate loading position positioning device for positioning a photosensitive lithographic printing plate at a predetermined loading position when loading the photosensitive lithographic printing plate into the printing device. A plate base on which the printing plate is placed and is inserted into the loading unit of the printing apparatus, and whether or not the insertion direction of the plate base into the loading unit is a normal insertion direction, and the loading unit of the plate base is detected. The insertion position notifying means for detecting that the plate base has been inserted into the predetermined insertion position by detecting the position in the insertion direction, and the plate base inserted in the predetermined insertion direction position by the insertion position notification means. Since it has a positioning means for moving it downward and positioning it at a predetermined position, it is possible to accurately position the photosensitive lithographic printing plate at a predetermined position of the loading portion, and to easily load it. Because it can be done, workability is improved The excellent effect of

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a skid which is an example of a carrying device to which a photosensitive lithographic printing plate loading position positioning device according to the present invention is applied, and FIG. 2 is a sectional view showing a projection insertion hole,
FIG. 3 is a perspective view showing a conventional skid. 10 …… PS version, 14 …… Skid, 24 …… Plate stand, 34 …… Protrusion insertion hole (insertion position notification means), 36 …… Protrusion (insertion position notification means), 42 …… Insertion position positioning completion notification plate (Insertion position notification means), 48 ... Cone (positioning means), 52 ...
Recess (positioning means).

Claims (3)

[Scope of utility model registration request] 1. A photosensitive lithographic printing plate loading position positioning device for positioning a photosensitive lithographic printing plate at a predetermined loading position when loading the photosensitive lithographic printing plate onto the printing device. Of the plate base to be inserted into the loading part and whether or not the insertion direction of the plate base into the loading part is a proper insertion direction, and the position of the plate base in the insertion direction into the loading part is detected. Insertion position notification means for notifying that the plate base has been inserted into a predetermined insertion position, and the plate base inserted into a position in a predetermined insertion direction by the insertion position notification means is placed and positioned at a predetermined position. A photosensitive lithographic printing plate loading position positioning device. 2. The insertion position notification means has a notification plate displayed on a notification window when the projection of the printing apparatus is inserted into a projection insertion hole provided in the plate base. The photosensitive lithographic printing plate loading position positioning device according to claim 1. 3. The photosensitive lithographic printing plate loading according to claim 1, wherein the positioning means has a convex portion provided on the lower surface of the plate base and a concave portion provided on the loading portion. Positioning device.