JPH02296648A - Apparatus for transportation of photosensitive printing plate - Google Patents

Abstract

PURPOSE:To prevent the above plate from a violent fall retaining the advantage of setting lengthwise by holding a number of photosensitive printing plates having photosensitive resins securely between the side boards set lengthwise on a transportable bottom board which is provided with violent fall preventive wings extending laterally therefrom at the longitudinal both sides. CONSTITUTION:A side board 12A is set on a bottom board 20 inclined thereto and reinforced by reinforcing members 22 with a holding bottom board 24 fixed to the bottom board 20 nearly perpendicularly to the side board 12A through a spacer 26. The bottom board 20 is provided with an appropriate number of casters 28. The side board 12A and another side board 12B are set securely by long bolts 30 to hold together a group of printing plates 1. The bottom board 20 is provided on at least the longitudinal both sides with the violent fall preventive wings 50 extending laterally therefrom. Preferably, this wing 50 is capable of being folded upwardly to reduce the stowage space when stored.

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 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.・・・While horizontally overlapping each other, rigid end plates 2, 2 are arranged on both mating surfaces, and bolts 3,
3. ...The pallets are fastened more tightly 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 side between both surfaces of the photosensitive printing plates 1, 1... group and the end plates 2, 2 is stepped to prevent damage. A ball 4 is provided. Furthermore, the number of stacked sheets is usually 700 to 1.
The amount is about 500, and if you are lucky, you can get 1000, for example.
Since each sheet weighs between 500 kg and 1000 kg, a forklift 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 installation area of 1 m x 1 m or more. 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 to be actually applied to the plate-making machine, it is necessary to use a After removing the bolts 3, the photosensitive resin surface must be carefully placed 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 sheets in units of 50 sheets, for example, it is necessary to insert a corrugated cardboard between each 50 sheets when stacking them in advance, which leads to an increase in cost.

Thirdly, in relation to the second point, a group of 700 to 1,500 sheets must be transported by forklift and then manually transported by workers before being sent to a plate-making machine, making the logistics less smooth. .

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, if the end plates are tightly tightened, the dust will easily damage them. Moreover, even before tightening, the lower printing plate is subject to the load of the upper printing plate.
Easy to get hurt.

Therefore, the present applicant first installed a large number of photosensitive printing plates having a photosensitive resin on a support by directly bringing them into close contact with each other and interposing them between the end plates without using interleaving paper. We have proposed a conveying device in which the group of photosensitive printing plates is fixed by fastening the plates, and is placed on a portable table in a substantially vertical position.

According to this device, since it is installed on the stand without interleaving paper, there is no need to insert interleaving paper and remove interleaving paper when taking out printing plates, improving work efficiency.

In addition, even when cutting out interleaf paper, the photosensitive printing plates are installed on the stand vertically, so their lower end surfaces are in contact with the stand due to their own weight. The printing plate hardly ever shifts and is prevented from being scratched. As a result, even if the end plates are tightened somewhat loosely, the printing plates will not move easily and will not be damaged. Increases the anti-sticking effect.

Furthermore, the group of printing plates is placed on a table in a vertical direction, and although the outer shape of each printing plate is large at about 1 m x 1' m, the thickness is thin at about 2 to 3 m, so even if it is 1000
Even if the sheets are stacked, the total thickness is 200 to 300 mm, and the installation space is small.

What's more, when a group of printing plates is transported vertically to the plate-making machine, the plate-maker can take them out one by one and put them through the plate-making machine, greatly improving work efficiency from transport to loading them on the plate-making machine. do.

However, on the other hand, as a portable stand, if the height is higher than the installed thickness and width, it is unstable and tends to fall over, and if it falls over, it is extremely dangerous due to the weight of the printing plates. Therefore, care must be taken when storing and transporting it. Also,
Considering only from the viewpoint of preventing falls, it is sufficient to increase the area of the base, but this creates another open surface that increases the occupied area.

Therefore, the main purpose of the present invention is to provide a transportation device that can prevent falling while maintaining the above-mentioned advantages of vertical installation, and can be stored without increasing the exclusive area. be.

[Means to solve the problem]

The above problem is solved by attaching a large number of photosensitive printing plates having a photosensitive resin on a support directly to each other without interleaving paper or interposing them between end plates with interleaving paper between them, and are fastened to fix the photosensitive printing plate group, and placed thereon on a portable table in a substantially vertical position, with both sides of the short side of the table in the vertical position touching the floor surface. This problem can be solved by installing wings to prevent the table from falling.

[Effect]

According to the present invention, by providing the fall prevention wings, it is possible to prevent the stand from falling in the short side direction.

[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 ○H groups and carboxyl groups, such as novolak resin, polyvarahydroxystyrene, and styrene/maleic anhydride copolymer, are mainly used.

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

In any case, the printing plate in which the above-mentioned photosensitive resin is provided on a support, such as an aluminum plate, is manufactured by processes such as degreasing of the support, sanding, electrolytic polishing, anodizing, water washing, When a series of processes such as drying, photosensitive liquid application, cutting, and surface inspection are completed, as shown in FIG. .

The photosensitive printing plate 1.1 installed on the stand 10 in this way
...The group has end plates 12, 12 applied on both sides, and is fastened with bolts 14 and nuts 16 around the edges 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 brought into direct contact and placed on a stand 10 as an integrated body.

The stand 10 does not need to be portable, that is, fixed to the ground, but preferably can be moved along the floor using 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 1.1... group are installed on the stand 10, the casters 18 are moved close to the plate making machine (not shown).
Along the floor or without casters,
After being moved using a forklift or the like, during plate-making work, the bolts 14, 14, etc. can be loosened to take out each sheet and put it in 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.

Further, after the required number of printing plates 1, 1... are placed on the end plate 12A, the end plate 12B is placed on the printing plate 1 located on the front side, and then the end plate 12A is placed.

12B, a long bolt 30° 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 bottle be held against 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... are stacked one on top of the other, are placed against the end plate 12A, and the end plates 12A, 1.
After fastening 2B with the bolt 30, hold the handle 32 and move to a predetermined position. When removing, remove bolt 3.
0 and remove the end plate 12B, the surface can be seen and the printing plate 1 can be taken out one by one. In this case, printing plate 1
Since it 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.

Further, when the printing plates I, 1... group are made to lean against the end plate 12A, as shown in FIG. 40 is convenient when aligning the side edges of the printing plates 1, 1, . . .

On the other hand, as shown in Figure 2, during storage, printing plate 1, ■
...While it is advantageous to leave the group upright since it occupies less space, since it is vertically long, a slight external force may cause the printing plate 1 to cross at right angles when being transported over an uneven floor. tend to fall in the direction of

Therefore, as shown in FIG. 2, fall prevention wings 50 extending toward the edge of the stand are provided at least on both sides. In the embodiment, four are provided at each corner. Preferably, the fall prevention wing 50 can be flipped up in order to reduce the occupied area during storage. For this purpose, in detail, as shown in FIGS. 5 and 6, casters 51
A support arm 1153 is rotatably provided on a base, for example, the reinforcing member 22 via a pivot shaft 52, and a connecting arm 54 is pivotally attached to the middle of the supporting arm 53. It is provided with matching pins 55A and 55B.

According to this fall prevention means, when it is necessary to prevent the fall, the support arm 53 is expanded and stopped, and the end of the connecting arm 54 is engaged with the pin 55A, and when there is no risk of falling, the support arm 53 is expanded and stopped. is flipped upward to engage the end of the connecting arm 54 with the stop pin 55B. By expanding the support arms 53, it is possible to prevent the table from falling in the short side direction. In this case, if the floor surface is uneven and transportation is unstable, or if there is ample space in the storage area and there is a risk of it falling over, the support arm 53 should be expanded. If there is no risk of tipping over, or if there are other transportation devices around to prevent the tipping over, it is preferable to flip up the support arm 53.

The anti-overturn blade according to the present invention is not limited to the above example. Further, although only one corner is illustrated in FIGS. 5 and 6, similar fall prevention means are provided for other corners as well.

In addition, in the present invention, 1o is placed on the stand of the transportation device.

This is particularly advantageous when using more than 300 printing plates, preferably 300 or more printing plates.

〔Effect of the invention〕

As described above, according to the present invention, it is possible to prevent overturning while maintaining the above-mentioned advantages of vertical installation.

[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 figure is a detailed side view of an example of fall prevention means, FIG. 6 is a perspective view of the main part thereof, and FIG. 7 is a perspective view of a conventional example. ■...Photosensitive printing plate, 10 units, 12.12A. 12B... End plate, 14... Bolt, 24... Bottom plate, 28... Caster 30... Bolt, 32...
...Handle, 8...Caster 0...Overturn prevention wing Figure Figure Figure Figure Figure A

Claims (3)

[Claims] (1) A large number of photosensitive printing plates having a photosensitive resin on a support are brought into close contact with each other directly without interleaving paper, or are interposed between end plates with interleaving paper, and the end plates are interposed between the end plates. The group of photosensitive printing plates is fastened and set on a portable stand in a substantially vertical position, and the stand overhangs on both sides in the short side direction of the stand in the vertical position. A photosensitive printing plate conveying device characterized by being provided with prevention wings. (2) The device according to claim 1, wherein the fall prevention blade is capable of flipping up and spreading. (3) The device according to claim 1, wherein casters are provided on the lower surface of the fall prevention blade.