JPH02293743A - Device for storing and transporting photosensitive printing plate - Google Patents

Abstract

PURPOSE:To facilitate a grounding operation over the entire part by bringing respective photosensitive printing plates into contact with a panel-shaped conductive material and bringing a ground wire into contact with this conductive material. CONSTITUTION:The printing plates 1, 1... are superposed on each other and are leaned against an end plate 12A. After the end plates 12A and 12B are fastened by means of bolts 30, the assembly is moved to a prescribed position by holding a handle 32. The bottom surfaces of the printing plates 1, 1... are brought into contact with the conductive plate 5 on a bottom base plate 24 and the ground wire 50 is connected to the conductive plate 5. A clip terminal 51 is connected to the end part thereof. The terminal 51 is connected to a member connected to the ground surface.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a storage/transport device for storing and/or transporting 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 large, about 1 m x 1 m, and weighs 500 to 1000 g per sheet, which 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 interleaving paper to prevent scratches,
Workability is extremely poor when stacking and taking out.

Therefore, in recent years, as shown in Fig. 7, directly photosensitive printing plates 1, 1, . 3,
3. The plates are tightly fastened to form a pallet to prevent the photosensitive printing plate from shifting due to vibrations and damaging the photosensitive surface.

In this case, one end plate 2 is used as a pallet stand, and at least one of the surfaces of the photosensitive printing plates 1.1... group and the end plates 2, 2 is covered with cardboard to prevent damage. There are 4. Furthermore, the number of stacked sheets is usually 700 to 1.
About 500 sheets, for example, 1000 sheets when transporting.
Since each sheet weighs between 500 kg and 1000 kg, a forklift 1 is used.

[Problem to be solved by the invention]

However, when using the above-mentioned end plates and stacking photosensitive printing plates horizontally, the first problem is that during storage,
It requires a large space of 1m x 1m or more as an installation area. Second, when a group of 700 to 1,500 printing plates that has been transported near a plate-making machine (image forming machine, exposure machine) is actually applied to the plate-making machine, it is necessary to carry the After removing Porto 3, the photosensitive resin surface must be carefully propped up on a stand near the plate-making machine, and then each sheet must be taken out and used, resulting in poor work efficiency. and should be handled with care. Moreover, even if there are only about 50 sheets, it is quite heavy, which puts a heavy burden on the workers. Furthermore, in order to take out 50 sheets at a time, for example, it is necessary to insert a stopper hole between each 50 sheets when stacking the sheets in advance, leading to an increase in cost.

Thirdly, in relation to the second point, when a batch of 700 to 1,500 sheets is used, it must be transported using a forklift I, and before it can be sent to a plate-making machine, it must be transported manually by a worker, making the logistics smooth. Lacks sex.

Fourth, if the end plates 2, 2 are not fastened sufficiently, the photosensitive resin surface will easily be damaged if a certain printing plate is displaced during transportation or the like. In addition, since the paper is not interleaved, if there is small dust between the printing plates and the end plates are tightly tightened, the dust will easily damage the plate. Moreover, even before tightening, the lower printing plate is subject to the load of the upper printing plate,
Easy to get hurt.

Therefore, when it is installed, it occupies a small surface area, and it is possible to take out each printing plate as it is after being transported, which is extremely efficient in terms of workability and efficiency.Moreover, there is no possibility of damage during handling. In order to provide a conveyance device, the present applicant has proposed a method in which a large number of photosensitive printing plates having a photosensitive resin on a support are brought into direct contact with each other and interposed between the end plates without interleaving paper. On April 10, 1989, the photosensitive printing plate group was fixed by fastening the end plates together, and the photosensitive printing plates were placed on a portable stand in a substantially vertical position. Proposed.

On the other hand, when this type of photosensitive printing plate is stored or transported, static electricity is likely to be generated due to the properties of the photosensitive resin and the mutual rubbing of the photosensitive printing plates. If static electricity is generated, it will cause discomfort and electric shock to the operator.

For this reason, conventionally, each time the plate is stored, a ground cord is brought into contact between a suitable photosensitive printing plate and the ground to discharge static electricity.

However, it is time-consuming to attach and detach the ground wire to the photosensitive printing plate each time storage begins and ends, and the entire photosensitive printing plate cannot be grounded.

SUMMARY OF THE INVENTION Accordingly, the main object of the present invention is to provide a storage and transportation device for photosensitive printing plates that allows for extremely easy grounding work and allows for grounding of the entire photosensitive printing plate.

[Means to solve the problem]

The above problem is solved in a storage/transport device that supports a large number of photosensitive printing plates having a photosensitive resin on a support in an overlapping state. This problem can be solved by bringing a planar conductive material into contact and connecting a ground wire that can be freely connected to and separated from the target ground point to this conductive material.

In this case, each photosensitive printing plate is supported in a substantially vertical state, the conductive material is disposed on the bottom surface of the support, and the bottom surface of each photosensitive printing plate is brought into contact with the conductive material. Then, when each photosensitive printing plate is placed upright for storage, it is possible to make contact with the ground wire as it is.

[Effect]

In the present invention, each photosensitive printing plate is in contact with a planar conductive material, and the ground wire is in contact with this conductive material, so that the entire photosensitive printing plate can be grounded.

[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 having phenolic OH groups and carboxyl groups, such as novolak resin, 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 a photosensitive resin as described above is provided on a support, for example an aluminum plate, can be used for its manufacture, for example for supporting. When a series of processes such as body degreasing, graining, electrolytic polishing, anodizing, water washing, drying, photosensitive liquid application, cutting, and surface inspection are completed, a sheet is placed on a portable table 10 without a mount, as shown in Figure 1. is installed vertically.

The photosensitive printing plates 1, 1 and 1 installed on the stand 10 in this way
...The group has end plates 12, 12 applied on both sides, and is fastened with bolts l4 and nuts l6 at the peripheries of these end plates 12, 12 that do not collide with the printing plate 1, and supports each adjacent printing plate. The body and the photosensitive resin surface are placed in direct contact with each other without any interleaving paper, or are placed on the stand 10 as an integrated object via a mount.

The stand 10 is portable, preferably movable along the floor on casters 18. Further, it is preferable that the bolts 14 be tightened more loosely than in conventional horizontal installation in order to prevent damage caused by dust on the interface.

Once the printing plates 1, l... are set on the stand 10 in this way, the casters 18
Along the floor or without casters,
After moving using a forklift or the like, bolts 14. 14... can be loosened and taken out one by one and put into a plate making machine.

On the other hand, when taking out one sheet at a time to a plate-making machine, in order to ensure the stability of the printing plates 1, 1, etc., as shown in FIGS. It is preferable to stand it upright.

In the examples of FIGS. 2 to 4, the end plate 12A is slanted on the bottom plate 20 and is erected and reinforced by the reinforcing material 22, and the bottom base plate 24 is arranged almost perpendicularly to the end plate 2A with the spacer. 2
6 on the bottom plate 20. In addition, the bottom plate 2
0 has an appropriate number of casters 28 attached to it.

In addition, after leaning the required number of printing plates 1.1... on the end plate 12A, the end plate 12B is placed on the printing plate 1 located on the front side, and then between the end plates 12A and 12B. and bolt through notches 12a, 12 formed on their side edges.
A long ball l-30 passing through a... 30... to fix the printing plates 1.1... group.

Furthermore, in order to move these to near the plate making machine, hand handles 3 are provided along with the aforementioned casters 28.
2 is installed. Since this handle 32 may get in the way during storage, it is preferable that the pin 32 be attached to a receiving tube 34 fixed to the bottom plate 20, etc., as shown in FIG.
It is preferable to make it detachable by inserting and removing 6. The attachment/detachment means is not limited to this example.

In the examples of FIGS. 2 to 4, the printing plates 1, 1, etc. are stacked one on top of the other, are placed against the end plate 12A, and the end plates 12A, 12
After fastening B with the bolt 30, hold the handle 32 and move to a predetermined position. When removing, use bolt 30
After removing the end plate 12B, the surface can be seen and the printing plate 1 can be taken out one by one. In this case, since the printing plate 1 leans against the end plate 12A at an angle θ, preferably at an inclination angle of θ-90 degrees to 60 degrees, it does not fall over while being taken out and is stable. Therefore, there is an advantage that the photosensitive resin surface will not be scratched and damaged during removal.

Note that a plurality of conveying devices shown in FIGS. 2 to 4 may be prepared depending on the size of the target printing plate, or as shown in FIG. The above-mentioned conveying device may be used in common for a small-sized printing plate IA formed inside the .2B.

In addition, when the printing plates 1, . 40 is convenient when aligning the side edges of the printing plates 1, 1, . . .

In addition, the above example is based on a transport device with a capacity of 100 sheets or more.
More preferably, the advantage is particularly great when 300 or more printing plates are provided.

Now, as mentioned above, static electricity is generated when the photosensitive printing plate 1 is stored and transported. Therefore, in the present invention, the conductive plate 5 is disposed in advance on the base 10 or on the bottom base plate 24, either integrally or separately. and,
Each of the photosensitive printing plates 1, 1, . By such a leaning, each photosensitive printing plate 1, ]...
The bottom surface of the conductive plate 5 contacts the conductive plate 5.

Further, a ground wire 50 is connected to the conductive plate 5 in a contacting state. A clip terminal 5 is attached to the end of the ground wire 50.
1 is connected.

Under such a device, a photosensitive printing plate 1 is applied to a conductive plate 5.
After the installation is completed, the clip terminal 51 is connected to the ground or to a member electrically connected to the ground for grounding. Thus, the charge on the photosensitive printing book l2 printing plate 1.1... is transferred from the conductive plate 5 to the ground wire 50.
This prevents the generation of static electricity.

As the conductive plate 5, conductive rubber may be used in addition to a metal plate such as a stainless steel plate or a copper plate. Further, although it is preferable to arrange a conductive material such as a conductive plate on the supporting bottom surface of the photosensitive printing plate 1 in order to prop it up and to establish an electrical connection, as shown in FIG. A large number of conductive brushes 52B may be installed in the photosensitive printing plate 52A, and the conductive brushes 52B may be brought into contact with the side end surface of the photosensitive printing plate.

It should be noted that the device of the present invention may be a simple storage body that is not portable, in addition to a transportation trolley. That is, as an example of this, the conductive plate 5 may be provided on a so-called horse 53 as shown in FIG.

〔Effect of the invention〕

As described above, according to the present invention, the grounding work is extremely easy and the entire photosensitive printing plate can be grounded.

[Brief explanation of drawings]

FIG. 1 is a front view of the first specific example of the present invention, FIG. 2 is a front view of the first specific example of the present invention, FIG. 2 is a perspective view of the second specific example, FIG. The figure is a perspective view of the main part shown in different viewing directions.
The figures are a plan view of a modified example of FIG. 1, FIG. 6 is a front view of another example, and FIG. 7 is a perspective view of a conventional example. ■... Photosensitive printing plate, 5... Conductive plate, lO... Stand,
12.12A. 12B... End plate, 14... Bolt, 24
・・・Bottom plate, 28...Casters, 30・Bolts,
32...Handle, 38...Caster, 50...Ground wire, 51...Clip terminal l3

Claims (2)

[Claims] (1) In a storage and transportation device that supports a large number of photosensitive printing plates having a photosensitive resin on a support in a stacked state, a planar surface is formed on substantially the entire end surface of the group of photosensitive printing plates. A device for storing and transporting photosensitive printing plates, characterized in that a conductive material is brought into contact with the conductive material, and a ground wire that can be freely connected to and separated from a target ground point is connected to the conductive material. (2) Each photosensitive printing plate is supported in a substantially vertical state, the conductive material is disposed on the bottom surface of the support, and the bottom surface of each photosensitive printing plate is in contact with the conductive material. The storage and transportation device for photosensitive printing plates according to claim 1.