JP2899810B2 - Storage / transportation device for photosensitive printing plate - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a storage / transport device for storing and / or transporting a photosensitive printing plate.

[Conventional technology]

Generally, a photosensitive printing plate is obtained by forming a photosensitive resin on a support such as an aluminum plate. This photosensitive printing plate is usually as large as about 1 m × 1 m per sheet, and weighs very much at 500 to 1000 g per sheet.

Conventionally, when storing or moving the photosensitive printing plates, an appropriate number of the printing plates have been horizontally overlapped via interleaving paper.

However, the use of interleaf paper for preventing scratches is extremely poor in workability during superposition and removal.

In recent years, as shown in FIG. 7, photosensitive printing plates 1, 1,...
Rigid end plates 2, 2 are arranged on both sides and tightened with bolts 3, 3, ... to form a pallet, and the photosensitive printing plate is prevented from being displaced by vibration etc. to prevent damage to the photosensitive surface.

In this case, one end plate 2 is used as a pallet table, and at least one of the end plates 2, 2 between both surfaces of the photosensitive printing plates 1, 1,... Provided. Furthermore, the number of sheets to be superimposed is usually about 700 to 1500 sheets.
Since it weighs ~ 1000kg, a forklift is used.

[Problems to be solved by the invention]

However, when the above-mentioned end plate is used and the photosensitive printing plates are superposed horizontally, first, a large space of 1 m × 1 m or more is required as an installation area during storage. Secondly, for example, a printing plate group of 700 to 1500 sheets transported close to a plate making machine (image forming machine, exposure machine),
When actually putting on a plate-making machine, for example, about 50 sheets that can be carried by hand, after removing the bolts 3, carefully rest on a table near the plate-making machine so as not to damage the photosensitive resin surface. , It must be taken out and used one by one, and its workability is poor and it has careful handling. Moreover, even about 50 sheets are quite heavy, so the burden on the workers is large. Further, for example, in order to take out every 50 sheets, it is necessary to insert the contact cardboard in units of 50 sheets at the time of superposition in advance, which leads to an increase in cost due to its use.

Thirdly, in connection with the second point, when 700 to 1500 sheets are put together, they are transported by a forklift and transported by a human operator before being put on a plate making machine, and the logistics lack smoothness. .

Fourth, if the end plates 2 and 2 are not sufficiently fastened, the photosensitive resin surface is easily damaged when a certain printing plate is displaced during transportation or the like. In addition, since the slip sheet is removed, when small dust is present between the printing plates, if the end plates are strongly tightened, the dust is easily damaged by the dust. Moreover, even before tightening, the lower printing plate is loaded by the upper printing plate,
Easy to be damaged.

Therefore, a transport device that has a small plane occupied area when installed, can take out the transported one by one as it is, is extremely excellent in workability and efficiency, and has little damage in handling. For the purpose of providing, the present applicant has proposed that a large number of photosensitive printing plates having a photosensitive resin on a support are directly adhered to each other, interposed between end plates without interleaving paper, and It was previously proposed on April 10, 1989 that the photosensitive printing plate group was fixed by fastening the plates, and was installed on a portable table in a substantially vertical state.

On the other hand, when storing or transporting this type of photosensitive printing plate,
Static electricity is easily generated due to the nature of the photosensitive resin, friction between the photosensitive printing plates, and the like. The generation of static electricity causes discomfort and electric shock to the operator.

For this reason, conventionally, each time storage is performed, an earth cord is brought into contact between an appropriate photosensitive printing plate and the ground to discharge static electricity.

However, it is troublesome to attach / detach the ground wire to / from the photosensitive printing plate every time the storage is started and finished, and the entire photosensitive printing plate cannot be grounded.

Therefore, a main object of the present invention is to provide a storage / transportation apparatus for photosensitive printing plates which can easily perform grounding work and can ground the entire photosensitive printing plate.

[Means for solving the problem]

The above object is to provide a storage and transport device for a group of photosensitive printing plates in which a number of photosensitive printing plates having a photosensitive resin on a support are closely adhered to each other, and the photosensitive printing plate group is connected to a pair of end plates. The photosensitive printing plate group can be fixed by interposing between the end plates, and the end plate of the end plate on which the photosensitive printing plate group leans is placed on a table. In addition to being installed, a substantially planar end surface of the photosensitive printing plate group is brought into contact with a planar conductive material, and the conductive material is connected to a ground wire that can be freely connected to and separated from a target ground portion. it can.

In this case, after removing one end plate by releasing the sandwiching, the photosensitive printing plates can be taken out one by one from the front side of the photosensitive printing plate group. Handling can be performed easily.

Further, each photosensitive printing plate is supported in a substantially vertical state, and the conductive material is disposed on the support bottom surface, and the bottom surface of each photosensitive printing plate is brought into contact with the conductive material. In addition, when the photosensitive printing plates are stored in a leaning state, they can be brought into contact with the ground wire as they are.

[Action]

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

[Specific configuration of the invention]

 Hereinafter, the present invention will be described in more detail.

In general, a photosensitive printing plate is prepared by coating a photosensitive composition on a support such as an aluminum plate, irradiating an actinic ray such as ultraviolet light through a negative image or the like, and polymerizing or crosslinking the irradiated portion to form a phenomenon liquid. Insolubilize and elute the non-irradiated part of the light into the phenomenon liquid, and make each part an image part that repels water and receives oil-based ink and a non-image part that receives water and repels oil-based ink Is obtained by

In this case, the photosensitive composition is preferably a negative type
In the PS version, 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 at least in combination with a binder resin.

As the photosensitive resin, a quinodiazide resin is typically used in the positive PS plate.

As the binder resin, a polymer having a phenolic OH group and a carboxyl group such as a novolak resin, polyparahydroxystyrene, and styrene / maleic anhydride copolymer is mainly used.

In addition, a photopolymerized or photocrosslinked photosensitive composition or the like can also be used.

In any case, the photosensitive resin as described above is a support,
For example, when a printing plate provided on an aluminum plate is manufactured, for example, after a series of processes such as degreasing of a support, graining, electrolytic polishing, anodic oxidation, washing with water, drying, application of a photosensitive solution, cutting, and surface inspection are completed. As shown in FIG. 1, it is installed vertically on a portable table 10 without slip sheets.

The photosensitive printing plates 1, 1... Set on the table 10 in this manner are provided with end plates 12, 12 on both sides thereof.
Tightened with bolts 14 and nuts 16 around the 12 printing plates 1 so that the support and the photosensitive resin surface of each adjacent printing plate are directly contacted without interleaving paper or integrated via interleaving paper. It is installed on the stand 10 as having been done.

The platform 10 is portable, preferably one that can be moved along the floor by casters 18. Further, it is preferable that the tightening with the bolts 14 is looser than the bolt tightening in the case of the conventional horizontal installation in order to prevent damage due to dust on the interface.

When the printing plates 1, 1... Are set on the table 10 as described above, the casters 18 can be used along the floor to the vicinity of a plate making machine (not shown), or using a forklift or the like when no casters are used. After the movement, during the plate making operation, the bolts 14, 14,... Can be loosened and taken out one by one and set on a plate making machine.

On the other hand, when one sheet is taken out to a plate making machine, as shown in FIGS. 2 to 4, in order to stabilize the printing plates 1, 1,... It is preferable to keep it.

In the examples of FIGS. 2 to 4, the end plate 12A is inclined on the bottom plate 20, is erected by the reinforcing member 22 and is erected, and is substantially perpendicular to the end plate 12A. It is fixed on the bottom plate 20 via 26. An appropriate number of casters 28 are attached to the bottom plate 20.

After the required number of printing plates 1, 1... Are placed on the end plate 12A, the end plate 12B is applied to the printing plate 1 whose surface is located on the side, and then the end plates 12A, 12B are separated. Long bolts 30, which pass through the bolt through notches 12a, 12a ... formed on their side edges,
30 ... to fix the printing plates 1, 1 ... group.

Further, in order to move them to, for example, the vicinity of a plate making machine, together with the above-described casters 28, a handle 32
Is installed. Since the handle 32 may be an obstacle during storage, it is preferable that the handle 32 be detachable by inserting and removing a pin 36 from a receiving cylinder 34 fixed to the bottom plate 20 or the like as shown in FIG. . The attachment / detachment means is not limited to this example.

In the example of FIGS. 2 to 4, the printing plates 1, 1... Are superimposed and leaned against the end plate 12A, and a bolt is provided between the end plates 12A and 12B.
After fastening with 30, the handle 32 is moved to a predetermined position. At the time of taking out, after removing the bolt 30 and removing the end plate 12B, the printing plate 1 may be taken out one by one from the surface. 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, the take-out is stable without being fallen. Therefore, there is an advantage that the photosensitive resin surface is not rubbed and damaged at the time of taking out.

2 to 4 may be prepared in a plurality depending on the size of the target printing plate, or as shown in FIG. 3, the bolt insertion holes 12b may be provided with the end plates 12A and 12B. And the above-described conveying device may be shared with the small-sized printing plate 1A.

When the printing plates 1, 1,... Are leaned against the end plate 12A, for example, an L-shaped end alignment member 38 is provided as shown in FIG. Putting it on is convenient for aligning the side edges of the printing plates 1, 1 ... group.

The above example is particularly advantageous when 100 or more, more preferably 300 or more printing plates are provided on the table of the transport device.

As described 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 previously integrated or separated on the base 10 or the bottom base plate 24. Then, the conductive plate 5 is leaned on each of the photosensitive printing plates 1, 1,... And is transported in a state of being stored or leaned. By the leaning, the bottom surfaces of the photosensitive printing plates 1, 1...

Also, a ground wire 50 is connected to the conductive plate 5 in a contact state. A clip terminal 51 is connected to an end of the ground wire 50.

When the photosensitive printing plate 1 has been leaned against the conductive plate 5 under such a device, the clip terminal 51 is connected to the ground or a member electrically connected to the ground to ground. Thus, the charges of the photosensitive printing plates 1, 1,... Escape from the conductive plate 5 through the ground wire 50, and the generation of static electricity is prevented.

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

The device of the present invention may be a simple storage body that is not portable, in addition to the transport vehicle. That is, in this example, the sixth
As shown, the conductive plate 5 may be provided on a so-called horse 53.

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

[Brief description of the drawings]

1 is a front view of a first embodiment of the present invention, FIG. 2 is a second embodiment of FIGS. 2 to 4, FIG. 2 is a perspective view, FIG. 3 is a side view, and FIG. The figure is a perspective view of an essential part having a different viewing direction, and FIG.
FIG. 6 is a plan view of a modification of FIG. 1, FIG. 6 is a front view of another example, and FIG. 7 is a perspective view of a conventional example. 1: photosensitive printing plate, 5: conductive plate, 10: stand, 12,12A, 12B
… End plate, 14… bolt, 24… bottom base plate, 28… caster, 30
... bolts, 32 ... handles, 38 ... casters, 50 ... ground wires,
51… Clip terminal

──────────────────────────────────────────────────続 き Continuation of front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G03C 3/00

Claims (3)

(57) [Claims] An apparatus for storing and transporting a plurality of photosensitive printing plates having a photosensitive resin on a support in close contact with each other and stacking the plurality of photosensitive printing plates, wherein the photosensitive printing plate group comprises a pair of photosensitive printing plates. The photosensitive printing plate group can be fixed by interposing between the end plates and sandwiching the end plates, and the end plate on the side on which the photosensitive printing plate group leans among the end plates is a base. And a planar conductive material is brought into contact with substantially the entire end surface of the photosensitive printing plate group, and a ground wire that can be freely connected to and separated from a target ground portion is connected to the conductive material. A storage and transport device for photosensitive printing plates, characterized by the following. 2. The photosensitive printing plates can be taken out one by one from the front side of the photosensitive printing plate group after one end plate is removed by releasing the sandwiching. For transporting photosensitive printing plates. 3. The photosensitive printing plate is supported in a substantially vertical state, and the conductive material is disposed on a bottom surface of the printing plate.
The storage / transportation apparatus for a photosensitive printing plate according to claim 1, wherein the bottom surface of each photosensitive printing plate is in contact with the conductive material.