JPH0331003A - Transporter for photosensitive print plate - Google Patents

Abstract

PURPOSE:To simplify transport and storage of photosensitive print plates, by piling up and loading a plurality of photosensitive print plates on a board having casters demountably mounted on its bottom surface, and applying mutual connection of end plates having those print plates interposed therebetween. CONSTITUTION:A plurality of photosensitive print plates 1 having photosensitive resin on a supporting body are set on a table 10 in such a state the supporting body of respective adjacent print plates 1 and a photosensitive resin are brought in direct with contact each other without any guard sheet. The circumference of each print plate 1 group is fastened by bolts 14 and nuts 16 so that respective end plates 12 applied to both sides thereof do not touch the print plates 1. On the other hand, the table 10 on which each print plate 1 group is set, is moved along a bottom surface by casters 18. At the time of plate making work, the bolts 14 are loosened, and respective print plates 1 are taken out one by one, and placed in a plate making machine. On the other hand, the casters 18 are demountably mounted on the table 10.

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 a mount 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. 7, directly photosensitive printing plates 1, 2, . 3,
3. ... 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 plate 2.2 is covered with cardboard to prevent damage. has been established. Furthermore, the number of stacked sheets is usually 700 to 15.
For example, if the number of sheets is 1,000, it will weigh between 500 kg and 1,000 kg, so 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 inventors of the present invention have developed a system that occupies a small planar area when installed, allows the transported printing plates to be taken out as they are, and is extremely superior in terms of workability and efficiency. For the purpose of providing a transportation device with almost no
In No. 4, 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, and the end plates are fastened together to form the photosensitive printing plate. We have proposed a transportation device in which a group of printing plates is fixed and placed in a substantially vertical position on a portable table.

However, in such a configuration, for portability,
If the casters are fixedly attached to the bottom of the stand, if the overall weight is not very heavy or if the distance to be transported is short,
It is possible to transport the transport device by pushing it forward manually, but on the other hand, when transporting a large number of photosensitive printing plates, if the entire plate is heavy or the transport distance is long, manual transport is difficult.

Therefore, in the latter case, the above-mentioned transport device is placed directly on a truck and fixed to the loading platform with ropes, or the transport device is fixed to a pallet and then transported by a forklift or truck.

However, with this type of transportation, the stability of the transport device is poor, and the transport device and casters are
There are problems such as it is not economical since it is necessary to have a one-to-one ratio, and it is often inconvenient to store due to the increased overall height and stability.

Therefore, the main object of the present invention is to provide excellent stability when transporting or transporting a large number of photosensitive printing plates by forklift or truck, since the whole is heavy or the transport distance is long. It is an object of the present invention to provide a transportation device that has good storage properties and can be easily transported within a printing factory.

[Means to solve the problem]

The above problem was solved by placing a large number of photosensitive printing plates having photosensitive resin on a support in a stacked state on a table having casters at the bottom, interposing them between end plates, and This problem can be solved by fixing the group of photosensitive printing plates by tightening the plates, and by making the casters removable from the stand.

On the other hand, it is more preferable that the group of photosensitive printing plates be placed vertically on a table without interleaving paper between them.

[Effect]

In the present invention, the casters are removable from the base. Therefore, when transporting by forklift or truck is required, by removing the casters and fixing the footrest to the bottom of the platform instead, the presence of the footrest will ensure space for inserting the fork when transporting by forklift. Moreover, it has good stability when placed on the bed of a truck, and is also more stable than when using casters during long-term storage in a printing factory.

Moreover, the casters that have been removed or prepared in advance at the printing factory can be used for transporting other transport equipment within the factory, which is more economical than when they are fixedly attached to the transport equipment one-on-one. .

Note that if the photosensitive printing plate group is placed on the table without interleaving paper, the work of inserting interleaving paper and removing interleaving paper when taking out printing plates is eliminated, improving work efficiency. In addition, even if the photosensitive printing plates are cut out from interleaf paper, if the photosensitive printing plates are placed substantially vertically on the table, their lower end surfaces will be in contact with the table due to their own weight, so that The printing plate hardly shifts and is prevented from being scratched. As a result, even if the end plates are tightened loosely between the end plates, the printing plate will not easily move and will not be damaged. Enhances scratch prevention effect.

Furthermore, when the printing plate group is placed on the table substantially vertically,
- The printing plates have a large outer shape of about 1 m x 1 m, but are thin, about 2 to 3 B thick, so even if 1000 sheets are stacked, the total thickness is 200 to 300 cffI, and the installation space is small. Moreover, when a group of printing plates is transported vertically to the plate-making machine, the plate-making tools can be taken out one by one and placed on the plate-making machine, greatly improving work efficiency from transport to plate-making machine. do.

[Specific structure of the invention]

The present invention will be explained in more detail below.

FIG. 1 shows the first embodiment, in which a photosensitive printing plate 1 having a photosensitive resin on a support is in direct contact with the support of each adjacent printing plate and the photosensitive resin surface without interleaving paper. It is installed on the multi-sheet stand 10 in the state where it is placed.

Such a group of photosensitive printing plates 1.1... has end plates 12, 12 applied on both sides thereof, and is fastened with bolts 14 and nuts 16 around the edges of these end plates 12 and 12 that do not collide with the printing plate l. 1, - as an embodied thing
It is installed on O.

The stand 10 can be moved along the floor by casters 18 fixed to its bottom.

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).
After moving the bolt along the floor with a forklift or the like without casters and with a footrest attached instead, as described later, during plate-making work, 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 each printing plate to a plate making machine, printing plate 1. t...For the stability of the group, it is preferable to lean them against one inclined end plate 12A in an overlapping state, as shown in FIGS. 2 to 4 shown as the second embodiment. .

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 substantially perpendicular to the end plate 2A with the spacer. 2
6 is fixed on the bottom plate 2o. In addition, the bottom plate 2
An appropriate number of casters 28, four in the illustrated example, are attached to the wheel 0.

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 l located on the front side, and then the end plate 12A is placed.

12B, a long bolt 30° 30 passes through bolt passage notches 1'2a, 12a... formed on their side edges.
... 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 second embodiment of FIGS. 2 to 4, printing plate 1.1
After stacking the groups and leaning them against the end plate 12A and fastening the ends between the end plates 12A and 12B with the bolts 3o, hold the handle 32 and move to a predetermined position. When taking out the printing plate 1, the bolt 30 is removed, the end plate 12B is removed, and the printing plate 1 can be taken out one by one, making sure the surface is visible. In this case, the printing plate l has an angle θ, preferably θ=90 degrees (
Since it leans against the end plate 12A at an angle of inclination of ~60 degrees, it will not fall over (and is stable) during removal.Therefore, when removing it, the photosensitive resin surface will not be scratched and scratched. It has the advantage of not sticking.

In the present invention, when 100 or more printing plates, more preferably 300 or more printing plates are provided on the table of the conveying device,
Especially the advantages are great.

By the way, as mentioned above, the presence of casters 18 or 28 is extremely effective when transporting the printer within a printing factory.

However, this type of photosensitive printing plate is normally supplied to a printing factory from a master plate manufacturer, and therefore the master plate manufacturer supplies the photosensitive printing plate to the printing factory by truck transportation. Further, it is often necessary to palletize and move a large number of photosensitive printing plates within a master plate manufacturer or a printing factory. In such case, as stated above,
On the contrary, the presence of casters 18 or 28 becomes a hindrance.

Therefore, in the present invention, the casters 28 are made removable as shown in FIG. 5, for example.

In the illustrated example, a hexagonal nut 40 is embedded in the bottom plate 20, and a fixing hexagon socket head bolt 44 is screwed into the hexagonal nut 40 from the mounting seat plate 42 side of the caster 28 to fix the caster 28. When removing the casters 28, remove each hexagon socket head bolt 44.
It is intended to remove.

If the casters 28 are removed, for example, the bottom plate 2
Mounting plate 46 fixed to the end of 0. Place the footrest 4 between the 46
8 and fix it with the fixing bolt 50. Thereby, a space for inserting a fork of a forklift (not shown) can be formed. It also creates a space for wires to pass through when lifting with a crane. The entire transporting device on which the group of photosensitive printing plates is mounted can be transported or transported by a forklift or a truck. On the other hand, when it becomes necessary to move the transport device, which has been stored with the footrest 48 attached in advance, to another location in the printing factory,
After the casters 28 are attached, a worker can manually transport it within the factory.

In the example shown in Fig. 5, each caster 28 can be attached and removed, but as shown in Fig. 6, two casters 28.
8 is fixed to a common support plate 55, and this support plate 50
may be attached to and detached from the bottom plate 20 using fixing bolts 54.

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 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, 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, Once a series of processes such as drying, photosensitive liquid application, cutting, and surface inspection are completed, as described above, the product is placed on a transport device with casters and transported to its destination.

〔Effect of the invention〕

As described above, according to the present invention, when transporting a large number of photosensitive printing plates, etc., when the whole is heavy or the transport distance is long, it has excellent stability when transported or transported by forklift or truck, Furthermore, it has good storage properties and can be easily transported within a printing factory.

[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.
FIG. 6 is a front view of a main part showing a structure for attaching and detaching casters, FIG. 6 is a bottom view showing another structure for attaching and detaching casters, and FIG. 7 is a perspective view of a conventional example. l...Photosensitive printing plate, IO...stand, 12.12A. 12B... End plate 1.14... Bolt, 24... Bottom plate, 28... Caster 30... Bolt, 32
...Handle, 42...Mounting seat plate, 44...Fixing hexagon socket head bolt, 52...Support plate, 54...Fixing bolt. Figure 2 Figure 1 Figure 3 Figure Figure Figure 0

Claims (2)

[Claims] (1) A large number of photosensitive printing plates having photosensitive resin on a support are placed one on top of the other on a table with casters at the bottom, and the end plates are interposed between the end plates. 1. A device for transporting photosensitive printing plates, characterized in that the group of photosensitive printing plates is fixed by fastening a space between the plates, and the casters are removable from the table. (2) One of the end plates is fixed in advance on a stand in a substantially vertical direction, and the group of photosensitive printing plates is inserted between that end plate and the other end plate to be brought in, with interleaving paper inserted between them. 2. The apparatus according to claim 1, wherein the group of photosensitive printing plates is fixed by interposing the two end plates in a substantially vertical state and fastening the two end plates together.