JPH02296647A - Apparatus for transportation of photosensitive printing plate - Google Patents

Abstract

PURPOSE:To securely fix the photosensitive printing easily and unify the fastening force by interposing between a top and a bottom board a number of closely stacked photosensitive printing plates having photosensitive resins without the use of synthetic paper and fastening together such plates with an elastic binding band, which is stretched over the these two boards. CONSTITUTION:The photosensitive printing plates 1 are stacked on a transportable bottom board 10 without the use of synthetic paper, a top board 12 is placed on the top of this stack and they are fixed to the bottom board by an elastic binding band 20. The bottom board 10 and the top board 12 afford the side plates for holding the printing plates pressed together therebetween. The binding band 20 is provided at each end of a wide rubber 20A with a hook 20B, which catches on the end of the bottom board 10 to bind together the printing plates. The binding bands 20 are usually bond around the stacked photosensitive printing plates 1 lengthwise at an interval.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a conveying device for photosensitive printing plates.

[Conventional technology]

Generally, a photosensitive printing plate is one in which a photosensitive resin is formed on a support such as an aluminum plate. This photosensitive printing plate is usually quite thick, measuring about 1 m x 1 m (and weighing 500 to 1000 g per sheet), and is quite heavy.

Conventionally, when storing or transporting photosensitive printing plates, an appropriate number of plates were stacked horizontally with interleaf paper interposed therebetween.

However, using a mount to prevent scratches,
Workability is extremely poor when stacking and taking out.

Therefore, in recent years, as shown in FIG. 6, directly photosensitive printing plates 1, 1. . . . They are stacked horizontally, rigid end plates 2, 2 are arranged on both surfaces of the mating, and usually eight bolts 3, 3... ... to prevent the photosensitive printing plate from shifting due to vibrations and damaging the photosensitive surface.

In this case, the number of stacked sheets is usually 700 to 15.
For example, 1,000 sheets weighs 500 kg to 500 kg, so a forklift is used for transportation.

[Problem to be solved by the invention]

However, in the case of fixing with bolts as shown in Fig. 6,
Bolts must be tightened and removed every time they are stored or transported, which requires a great deal of effort and time. In addition, if the eight bolts are tightened to different degrees, uneven loads will occur, and if they are loose, it will cause scratches on the photosensitive surface, so it is necessary to tighten them carefully using a torque wrench. , This was a factor that required layering and labor.

On the other hand, as mentioned above, in addition to transporting a large number of sheets, in some cases, the entire school may not use them, but after using a small number of sheets, they may be transported, and in this case as well, it is time-consuming to re-fix them. It has been desired to develop a means for easily fixing.

SUMMARY OF THE INVENTION Therefore, the main object of the present invention is to provide a conveying device that can easily fix a photosensitive printing plate and that can apply uniform tightening force.

[Means to solve the problem]

The above-mentioned problem is to interpose a large number of photosensitive printing plates having a photosensitive resin on a support between the end plates by directly adhering them to each other without a mount, and to straddle the end plates between them. This can be solved by fixing the problem with an elastic band.

[Effect]

In the present invention, it is installed on a table without interleaving paper. I wanted to,
There is no need to remove the mount when inserting interleaf paper or taking out the printing plate, improving work efficiency.

Furthermore, in particular, when fixing the photosensitive printing plate, an elastic and stretchable binding band is used instead of fastening with bolts, so the band can be easily straddled between the end plates, making the fixing work extremely simple. Furthermore, since the band is elastic and stretchable, when it is fastened, the tightening force is uniform and it is possible to prevent knitting from tightening.

[Specific structure of the invention]

The present invention will be explained in more detail below.

Photosensitive printing plates are generally produced by coating a photosensitive composition on a support such as an aluminum plate, irradiating it with active light such as ultraviolet rays through a negative image, and polymerizing or crosslinking the irradiated areas to form a phenomenon liquid. Insolubilize and elute the non-irradiated areas into the phenomenon liquid, making each area an image area that repels water and accepts oil-based ink, and a non-image area that accepts water and repels oil-based ink. It is obtained by

In this case, the photosensitive composition is particularly negative-type P
For S plates, diazo resins such as condensates of P-diazodiphenylamine and formaldehyde are widely used.

However, this diazo resin is not used alone, but is usually used in combination with at least a binder resin.

Furthermore, as the photosensitive resin, quinodiazide resin is typically used in positive PS plates.

As the binder resin, polymers containing phenolic OH groups and carboxyl groups, such as novolac resins, polyparahydroxystyrene, and styrene/maleic anhydride copolymers, are mainly used.

In addition, photopolymerizable, photocrosslinkable photosensitive compositions, etc. can also be used.

In any case, a printing plate in which the photosensitive resin as described above is provided on a support, such as an aluminum plate, is manufactured by processes such as degreasing of the support, graining, electrolytic polishing, anodizing, washing, drying, When a series of processes such as photosensitive liquid application, cutting, and surface inspection are completed, as shown in Fig. 1, they are stacked on the portable bottom plate 1o without interleaving paper, and finally the top plate 12 is placed on each photosensitive layer. The printing plates 1, 1, . . . are fixed by an elastic and stretchable binding band 20 according to the present invention. The bottom plate 10 and the top plate 12 constitute end plates in the present invention.

The cable tie 20 has hooks 2 on both ends of the wide rubber 2OA.
0B, 20B, and a binding band 2 in which binding is performed by hooking the hook 20B to the end of the bottom plate 10.
0 is not shown in FIG. 1, but as in FIG.
Usually, the binding is achieved by a plurality of binding bands 20 provided at intervals in the longitudinal direction of the photosensitive printing plates 1.

In FIG. 2, an elastically stretchable member 21B, for example, is integrated into both ends of a non-elastic stretchable member 2LA, and a hook 21C is provided at each end.

In this case as well, binding is performed in the same manner.

Binding bands are provided on each side so as to cross the upper surface of the upper plate 12.

However, as shown in FIG. 3, without crossing the upper plate 12,
The photosensitive printing plate 1 may be fixed by simply having the binding band 22 straddle the bottom plate 10 and the top plate 12. This binding band 22 has hooks 22B and 2 at both ends of the rubber 22A.
2B, and these hooks 22B, 22B are hooked onto the corresponding hook receivers IOA, 12A and tied together.

On the other hand, if tightening requires special load adjustment, for example, as shown in Fig.
Both ends of 3 are connected to a tightening force adjusting means 24, and the tightening force can be adjusted by this adjusting means 24. The adjustment means 24 is a guide 24A fixed to the bottom plate 10.
, a slider 24B that is movable along this, and a screw screw 24 with a rotating handle 24C that is screwed into the slider 24B.
D, and the binding band 23 is detachably connected to the slider 24B via a pin 24E or the like. When binding, the binding band 23 is attached to the slider 24B of the adjustment device 24 attached to the bottom plate IO in advance, and the tightening force can be adjusted by rotating the screw 24D with the rotating handle 24C and moving the slider 24B.

On the other hand, as shown in FIG. 5, the elastic binding band 24 may be tightened by a trouble mechanism. That is, the support member 30 is provided on the stand 10, and the slider 31 is slidably engaged with the guide portion 30A of the support member 30.
1, an end of a cable tie 24 is connected to the slider 31, an arm 32 is pivotally connected to the slider 31, and the other end of this arm 32 is pivotally connected to a bent part of a bell crank 34 whose one end is pivotally connected to a bracket 33. This is how it was done. In this embodiment, when the free portion of the bell crank 34 is pushed down, the slider 31 is pushed down, and at this time a boosting effect occurs and the binding band 24 is stretched.

In the above example, the entire bottom plate 1o and top plate 12 may be surrounded and bound together with a binding band. Furthermore, it is preferable to prepare binding bands of several lengths or with different elastic stretching forces depending on the number of fixed pieces or to select the tightening force.

In this way, printing version 1. l...If the group is fixed to the transport device, plate making 81! (not shown), move it along the floor using casters 14 or, if there are no casters, using a forklift or the like, then untie the cable ties and take out the sheets one by one during plate-making work and place them in the plate-making machine. can be applied.

[Effects of the Invention] As described above, according to the present invention, a photosensitive printing plate can be easily fixed, and the tightening force can be uniform.

[Brief explanation of drawings]

FIG. 1 is a front view of a first specific example of the present invention, FIG. 2 is a perspective view of a second specific example, FIG. 3 is a front view of still another example, and FIG. 4 is a main part of still another example. FIG. 5 is a front view of a main part of another example, and FIG. 6 is a perspective view of a conventional example. DESCRIPTION OF SYMBOLS 1... Photosensitive printing plate, 10... Bottom plate, 12... Top plate, 20.21, 22.23, 4... Binding band Figure 1 Figure Figure

Claims (1)

[Claims] (1) A large number of photosensitive printing plates having a photosensitive resin on a support are placed in direct contact with each other without interleaving paper and interposed between the end plates, and the end plates are straddled between them. A photosensitive printing plate conveying device characterized by being fixed with an elastic band.