JPS6141810B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a plate-making device that applies a photosensitive resin to the surface of a printing plate material, or a plate-making device that applies a photosensitive resin layer to the surface of a printing plate material for printing. This invention relates to labor-saving technology for supplying plate materials to exposure equipment that prints characters and designs.

Plate making technology using photosensitive resin involves coating the surface of an aluminum plate with liquid photosensitive resin, and immediately after that,
There is a method in which characters and designs are printed on, the resin in the photosensitive areas is cured, and the resin in the non-photosensitive areas is removed, and a photosensitive resin layer is formed on the surface of the aluminum plate in advance.
There is a method of performing a similar baking treatment on this pre-coated photosensitive resin layer.

When cutting the aluminum plates used in any of these methods (i.e., aluminum plates pre-coated with photosensitive resin and aluminum plates not pre-coated) to the required size, a large number of plates are laminated, In addition, in order to facilitate the cutting action of the cutting machine and to prevent the surface of the aluminum plate or photosensitive resin layer from being damaged during handling, interleaving paper is inserted between adjacent plate materials. A large number of plates with interleaf paper sandwiched together are stacked and handled.

Therefore, the plate material (aluminum plate or aluminum plate precoated with a resin layer) is used for a plate making device that applies liquid photosensitive resin or an exposure device that prints characters and designs on a precoated photosensitive resin layer. The supply is performed while removing the interleaving paper from a stacked plate group formed by alternately laminating plate materials and interleaving paper. Conventionally, this printing plate feeding has been done manually, which is very cumbersome and involves separating the printing plate and interleaf paper and feeding them one by one.
Moreover, the work became inefficient.

An object of the present invention is to provide a plate material feeder for printing plate production that automates such a plate material feeding operation.

An example of the present invention will be described based on a pattern.
1 is the main body of a plate material feeder for printing plate production;
A laminate made by alternately laminating plate material a for printing plate production made of an aluminum plate (or aluminum plate pre-coated with photosensitive resin) with a wall thickness of 0.4 mm and interleaf paper b with a wall thickness of 7/100 to 8/100 mm. It has a rectangular table 2 on which a group of plate materials A is placed, and the table 2 is moved through an elevating drive device 3 consisting of a fluid pressure cylinder (hydraulic cylinder or air cylinder) device (or a jacking mechanism using a screw action). , is supported so that it can be raised and lowered while maintaining a substantially horizontal attitude with respect to the main body 1.

In this embodiment, a mechanism B is provided on one side of the table 2 for conveying the plate material a and the interleaving paper b in the same direction and taking them out to different locations.This taking out mechanism B is as follows. It is composed of

That is, a movable frame body 6 that can freely reciprocate in the horizontal direction is connected to the upper part of the main body 1 via a rack 4 and a pinion 5. small air cylinders 7...
They are fixed at appropriate intervals in the reciprocating direction of the movable frame 6 and in the transverse direction to that direction.
One vacuum pump P built into the main body 1 is attached to the elevating piston rod of each air cylinder 7.
A suction cup 9 made of rubber (or soft resin) connected via a flexible suction hose 8 is fixed to the plate, and these constitute a device 10 for conveying the plate material a and the interleaf paper b in the same direction. . Note that a pump for supplying compressed air to the air cylinder 7 is omitted in the drawing. On the side of the table 2 in the main body 1 in the feeding direction of the plate material a and the interleaf paper b,
A brush 11 that contacts the end surface of the laminated plate group A and a horizontally flat air nozzle 12 are provided, and both 11 and 12 constitute a peeling device 13 that separates the plate material a and the interleaving paper b. are doing.

On the downstream side of the peeling device 13 in the feeding direction,
A pair of upper and lower roll feeders 14... and a belt conveyor 15 are arranged in this order in the feeding direction. The plate material a fed out by the roll feeder 14 passes onto the belt conveyor 15 so that the end portion of the plate material a is flush with the chute 16 for sending out interleaf paper provided on the lower side of the roll feeder 14... Switching between a first posture that allows the end portion to move and a second posture in which the end portion is located above the chute 16 and prevents the interleaf sheet b fed by the roll feeder 14 from moving to the belt conveyor side. A switching device 17 for freely switching the feeding direction is provided, and is configured to alternately switch between both postures in conjunction with the return movement of the movable frame 6. Reference numeral 18 denotes a paper storage box with wheels 18a placed below the chute 16.

According to the above embodiment, when the movable frame body 6 is located at the end of the reciprocating stroke on the upper side in the feeding direction, the small air cylinders 7 expand and contract, thereby causing the uppermost layer of the laminated plate material group A to The material a is lifted upward in parallel using the suction cups 9. At this time, even if the interleaf paper b located below the plate material a is lifted together with the plate material a, as shown in FIG.
The air nozzles 12...
Since air is ejected from the plate, the interleaving paper b is peeled off from the bottom surface of the plate material a, and only the plate material a is lifted.

When the plate material a is lifted to the set position by the air cylinders 7..., the movable frame 6 moves in the feeding direction to the end of its reciprocating stroke, as shown in FIG. 3B, and the plate material held by the suction cups 9... The material a is fed between the roll feeders 14 and is forcibly fed out by the roll feeders 14. At this time, the feeding direction switching device 17 has been switched to the first position, and the plate material a moves onto the belt conveyor 15, and is transferred via the belt conveyor 15 to a liquid photosensitive resin plate-making device or an exposure device. sent to.

On the other hand, after the plate material a is fed into the roll feeder 14, the movable frame 6 returns to its original position, and the air cylinders 7 expand and contract in the same way.
The suction cups 9 lift the interleaving paper b, and the movable frame 6 moves in the feeding direction, so that the front end of the interleaving paper b is fed between the roll feeders 14, and the forced feeding action by the roll feeders 14 is performed. receive. In this case, as shown in FIG. 3C, the movable frame 6
Since the feeding direction switching tool 17 is switched to the second position in conjunction with the return movement of the slip sheet b, the slip sheet b is guided by the switching tool 17 and the chute 16 and is supplied falling into the slip sheet storage box 18. That will happen.

Note that the height of the table 2 may be adjusted by operating the elevating drive device 3 each time the plate material a is sent out so that the upper surface of the stacked plate group A is maintained at a constant height, but in practice, When the plate material a is a laminated plate material group A of about 50 sheets, the entire wall thickness is small, so even if the table 2 is fixed, there is no problem in the feeding operation.

Therefore, when a stack of 50 stacked plate materials A is placed on the table 2, the lifting drive device 3 is activated each time the feeding of one pack is completed. If the height of the table 2 is adjusted, the desired feeding action can be sufficiently exerted.

As clarified in the above examples, the features of the technical means taken by the present invention are: In the plate material feeder for printing plate production, which is equipped with a mechanism for separating the laminated plate material group on the table into the plate material and the interleaf paper and taking them out one by one alternately, the taking out mechanism is located at one end of the table. a feeder provided on the table; a conveying device that sucks and lifts the plate material or interleaving paper on the table and supplies it to the feeder; a brush that contacts the end surface of the stacked plate group on the downstream side in the conveying direction of the conveying device; and a nozzle that blows gas into a gap between the peeled edge of the interleaving paper and the plate material to peel off the interleaving paper; The present invention is comprised of a switching device for switching the feeding direction of the plate material and the interleaf paper carried out by the feeder, and this feature produces the following effects.

○B In other words, since the configuration is such that one conveyance device alternately conveys printing plate materials and interleaving paper, the overall structure can be simplified by using a dual-purpose conveyance device, and the plate materials and interleaving sheets can be conveyed separately. can.

○B The above-mentioned conveyance device is configured to alternately convey the plate material and the interleaf paper in the same direction, and each is taken out to a different location using the feed-out direction switching tool.
The mechanism for taking out the printing plates and interleaving paper is arranged on one side of the table on which the stacked printing plates are placed, and a large work space can be secured around the table. In other words, if the plate material and the interleaving paper are configured to be taken out one by one from the front and back of the table, for example, a dedicated ejection mechanism for each, a storage box for the taken out interleaving paper, and a plate-making device (or exposure Since these devices are located on both sides of the table, the direction in which the stacked plates are fed onto the table is restricted by these devices.

In this respect, in the present invention, there is a large degree of freedom in selecting the supply direction, and the optimum direction can be selected according to the working environment and demands, and maintenance and management of each device can be easily performed using the large working space.

○C Also, when peeling the interleaving paper from the plate material,
The brush removes the edge of the interleaving paper and blows gas into the gap between the peeled edge of the interleaving paper and the plate material to achieve complete separation, so there are no mechanical moving parts and the entire product is compact. In addition, there is an effect that there is no risk of damaging the plate material.

[Brief explanation of the drawing]

The drawings show an embodiment of the plate material feeder for printing plate production according to the present invention, FIG. 1 is a schematic front view, FIG. 3 is a plan view of the main part, and FIGS. 3A to 3C are main parts showing the operation. It is a front view. A... Laminated plate material group, a... Plate material, b... Interleaf paper,
B...Take-out mechanism, 2...Table, table,
10... Conveyance device, 11... Brush, 12... Nozzle, 14... Feeder, 17... Switching tool.

Claims (1)

[Claims] 1. A table 2 on which a laminated plate group A in which plate materials a for printing plate production and interleaf sheets b are stacked alternately is placed;
In the plate material feeder for printing plate production, which is equipped with a mechanism B that separates the laminated plate group A on the table 2 into the plate material a and the interleaf paper b and takes them out one by one alternately, the mechanism B that takes out the plate material is , a feeder 14 provided on one end side of the table 2, and a feeder 14 provided on one end side of the table 2;
A conveying device 10 that sucks and lifts the upper plate material a or interleaving paper b and supplies it to the feeder 14, and a device for peeling the end of the interleaving paper b from the plate material a when the conveying device 10 suctions and lifts the plate material a. Then, the brush 11 that contacts the end surface of the laminated plate group A on the downstream side in the conveying direction of the conveying device 10 blows gas into the gap between the peeled end of the interleaving paper b and the plate material a to remove the interleaving paper b. A plate material feeder for producing a printing plate, comprising a nozzle 12 for peeling the plate material a and a switching device 17 for switching the feeding direction of the plate material a and the interleaf paper b carried out by the feeder 14.