JPS6332552A - Applying device for correcting liquid to negative film - Google Patents

Abstract

PURPOSE:To improve the uniformity and accuracy of a finish and the efficiency of a photoengraving process by constituting the titled device so that a correcting liquid is applied to a necessary application area of a film plate automatically, when a data is inputted by designating a correcting liquid application area. CONSTITUTION:A film plate 1 is positioned and held in a reference position of a plate holding means. A data for designating what is called a black solid part of the film plate 1, as a correcting liquid application area is inputted by data input means 10, 10a. A control device 11 controls driving of a right and left X direction driving means 4, a forward and backward Y direction driving means 6, and an applying tool driving means 8, respectively, based on said designated data. By the right and left driving means 4, an erection frame 3 is moved relatively by a prescribed quantity in the right and left directions against the plate holding means 2. Subsequently, by the forward and backward driving means 6, a holding means of an applying tool 7 is moved in the forward and backward direction along the erection frame 3. In such a case, if it is in the applying area, the applying tool descends by the applying tool driving means 8 and abuts on the film plate, and the applying process of the correcting liquid in the forward and backward directions is executed.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an apparatus for applying a correction liquid such as Heopaque liquid to a film original plate for plate making.

<Prior art> For example, in the case of a negative original plate, the film original plate for platemaking created in the photolithography process has a so-called solid black area in which the blank areas other than the patterns and characters are completely blackened. is essential. However, under the normal working environment where exposure equipment for plate making is installed, pinholes may occur in this solid black area due to fine dust or development processing conditions, or the required blackening density may be may not be obtained. Therefore, in the past, workers applied correction fluid to these solid black areas and pinhole areas using an applicator such as a brush, or pasted a light-shielding laminate film, etc. on the original film plate to correct the problem. Rather than cutting out the laminate film other than the black solid area, it was essential to perform a so-called opaque operation to form a complete black solid area.

<Problems to be Solved by the Invention> However, all of the above conventional methods require a large amount of manual work time and have the disadvantage of lacking uniformity and accuracy in finishing.

<Means for solving the problems> The present invention aims to solve the above problems. This paper proposes a correction liquid coating device for film original plates, which is constructed as follows.

That is. original plate holding means for positioning and holding the film original plate at its reference position;
an erection frame provided to be movable in the left and right directions relative to the original plate holding means; a left-right drive means for moving the erection frame in the left and right direction relative to the original plate holding means; a pedestal on which is mounted an applicator and an applicator driving means that is movable in the front-rear direction orthogonal to the film plate and drives the applicator toward and away from the film thick plate; - a back-and-forth drive means for relative movement in the applicator trap direction, a correction fluid supply means for supplying correction fluid, a data input means for specifying and inputting the correction fluid application area, and data input from the data input means. and a control device for driving and controlling the left and right drive means, the front and rear drive means, and the applicator drive means based on,
The present invention is characterized in that it is configured to apply correction fluid to a designated area.

<Operation> The film original plate is positioned and held at the reference position of the original plate holding means. Data specifying the so-called black solid portion of the film original plate as the correction fluid application area is inputted from the data input means. Based on this specified data, the control device controls the left and right (
The X-direction driving means, the front-rear (Y-direction) driving means, and the applicator driving means are each driven and controlled. The erecting frame is moved by a fixed amount (corresponding to the application width of the applicator) in the left-right direction relative to the original plate holding means by the left-right moving means.

Next, the applicator holding means is moved back and forth along the construction frame by the back and forth drive means. At this time, if it is within the coating area, the applicator is lowered by the applicator drive means and comes into contact with the film original plate, and the correction liquid application process in the front and back direction is executed. Note that the applicator is supplied with correction fluid to be consumed by the correction fluid supply means. After the longitudinal coating process is executed, the original plate holding means and the construction frame are moved relative to each other by a certain amount, and the longitudinal coating process is executed again.

Since this operation is repeated over the entire surface of the film original plate, the correction liquid is applied to the required application area.

<Example> Hereinafter, an example of a correction fluid coating device according to the present invention will be described based on the drawings.

FIG. 1 is a perspective view of a correction fluid application device showing a first embodiment. In this figure, reference numeral 1 denotes a film original plate, 2 an original holding means, 3 an erection frame, 4 a left-right driving means for moving the erection frame 3 in the left and right (X) direction with respect to the original holding means 2, and 5 an erection frame 3. 9Jri is a pedestal that is movable in the front-rear (Y) direction along a guide 19 and on which the applicator 7 and the applicator drive means 8 are mounted; correction liquid supply means for supplying correction liquid to the applicator 7; data input means for specifying and inputting the correction liquid application area of the 10Fi film original plate 1; This is a control device that drives the back-and-forth drive means 6 and the applicator drive means 8.

The original holding means 2 includes a table 13 on the upper surface of the apparatus main body 12.
A vacuum adsorption type original plate holding surface 14 formed on the table 13 is provided. A set of positioning members 15 that position the film original plate 1 at a reference position by bringing two perpendicular sides into contact with each other.
a and 15b. The film plate 1 is positioned and held on the plate holding surface 14. Note that one positioning member 15a is configured as a gripper that presses and holds the edge portion of the film original plate 1 against the original plate holding surface 14. A solenoid for raising and lowering the gripper 15a is shown as 16 in FIG.

The construction frame 3r/i is provided so as to be movable in the left and right (arrow X) directions on the original plate holding surface 14. i.e. table 1
Guide grooves 17, 17 running left and right are cut through the table 13 at the front and rear of the table 3, respectively, and the traveling base 1 can run along the guide grooves 17, 17, respectively.
8 and 18 are provided, and a pair of guides 19 and 19 are installed on this set of traveling bases 18 and 18, whereby the installation frame 3 straddles the plank holding surface 14 back and forth and moves in the left and right direction. configured as possible.

The left and right drive means 4 is provided below the table 13, and includes a drive motor 21, a pair of front and rear drive pulleys 22, which are interlocked with the drive motor 21, driven pulleys 23, and a tension pulley 24. 24, and endless wires 25, 25 that are spring-hung on these pulleys 22, 23, 24 and connected to the running bases 18, 18 of the running frame 3, respectively.
It is configured to be driven intermittently by a fixed amount in the X) direction.

A back-and-forth drive means 6 for moving the pedestal 5 in the front-rear direction includes a drive morph 26 provided inside one of the traveling bases 18 and a drive morph 26 that moves the pedestal 5 in the front-back direction.
and a drive belt 27 connected to the drive belt 27.

The applicator driving means 8 consists of a drive motor 28 and a rack 30 having an applicator 7 at its lower end and which is moved up and down by a pinion 29 of the drive morph 28. The uppermost separated position where the applicator 7 moves without contact, the intermediate contact position where the applicator 7 contacts the film original plate and applies correction liquid to the coating area, and the applicator 7 is placed in contact with drying prevention liquid while the applicator is stopped. It is configured so that it can be switched appropriately between the lowest resting position and the lowermost resting position where it is immersed in the reservoir 31.

FIG. 2 is a partial schematic diagram of FIG. 1, and shows the correction fluid supply means 9.
A container 35 containing correction fluid, a hose 36 for supplying the correction fluid from the container 35 to the applicator 7, and a pair of press members 37 for pressing the hose 36 when the rack 30 reaches its upper and lower limits. - 37, and in the separated positions corresponding to the upper and lower limits of the rack 3o and the rest position, the hose 36 is pressed and deformed, so that correction fluid is not supplied. Note that a solenoid valve 39 may be provided in the middle of the hose 36 instead of the pressure contact members 37.

The applicator 7 may be any applicator as long as the part that comes into contact with the film original plate 1 can easily absorb the correction fluid and retain water, and it is preferable to use a brush or a melton instead of a brush.

Also, reference numeral 38 in FIG. 2 is a dryer. Hot air is blown to dry the correction fluid applied to the original film.

The control device 11 is equipped with arithmetic processing means such as a so-called micro convenience store, and input means 1o such as a numeric keypad.
Based on the application area designation data inputted by , the left and right drive means 4, the front and back drive means 6, and the applicator drive means 8 are controlled so as to apply the correction liquid to the designated area.

Incidentally, reference numeral 10a is a digitizer, and the application area of the thick film plate 1 may be designated using this digitizer 10a.

The operation of this device and its operating mode will be explained below.

FIG. 4 is a flowchart showing this aspect.

When the power is turned on and started, the device enters A mode to prepare for operation. In step A, the film original plate 1 is mounted on the original holding surface 14. That is, the clipper 15a is raised by the solenoid 16. The two edges of the film original plate 1 are brought into contact with the clipper 15a and another positioning member 15b, respectively, and positioned at the reference position, and the film original plate 1 is evacuated through suction holes (not shown) in the original holding surface 14. Hold.

In step A2, the transparent gauge film 40 for measuring the coating area shown in FIG. The clipper 15a is lowered to fix the gauge film 4o. Next, the size and coating area of the film original plate are measured and the data are inputted via the input means 10. In addition, in FIG. 3, for example, two points P1 (Xl, Yl) and F',
Each X@V of (X2. Y2)? , (X1~x2
) and the Y area (Y, ~Y, By inputting designation data, the coating prohibited area S and the other coating area R are determined.

Also, if necessary, for example, p, (x3.y3), B4(
It is also possible to specify the area vS2 defined by x4, Y4) by overlapping the area s1, and then specify the area vS2 defined by
3) and B4 (x4, Y4), the arithmetic processing means in the control device 1゜1 calculates the point where the edges of the areas s0 and S intersect, and determines the correction fluid application prohibited area v:, s1.
, B2 and other coating areas R are determined.

In step A3, the applicator driving means 8#- is raised by the key input indicating the end of data input, and the applicator 7 is returned to its original position. P. (XoYo) Position K.

This completes the preparation for operation of the device and proceeds to the next B mode.

FIG. 5 is a B-mode flowchart showing the coating process. In step B1, the left and right drive means 4 are driven to relatively move the applicator 7 in the X direction by the width of the applicator. Next, the process proceeds to step 82 to B1°, which is a forward coating process.

In step B2, it is determined whether there is a coating area R in the Y direction, and if there is a coating area, the process goes to step B3;
Proceed to step 13. In step B3, the applicator 7 is moved in the Y direction by the longitudinal drive device 6. In step B4, it is determined that the coating has reached the area R, and in step B5, the movement in the Y direction is stopped, and the applicator driving means 8 is activated to lower the applicator 7 to contact the film original plate 1. . In step B6, the applicator 7 is moved forward in the Y direction again to apply the correction fluid. In step B7, it is determined whether or not the applicator is within the coating area R, and when it reaches the end, movement in the Y direction is stopped, and the applicator 7 rises and separates from the film original plate 1.

In step B1°, it is determined whether the other edge π of the film original plate 1 has been reached, and if the edge has not been reached, step 82
~B1° is repeated to execute the forward coating process. When reaching the edge of the film original plate 1, the applicator 71i is moved back in the Y direction in step B11, and then in step B
1, the applicator 7 is relatively moved in the X direction by a predetermined pitch, and the forward coating process is executed again. Note that step B11
Step 80~B instead. It is also possible to incorporate a double-action coating process corresponding to .

In step "13, it is determined whether there is a coating area R in the X direction. If there is a coating area remaining, the process advances to step B1, and these steps are repeated. The correction liquid is applied to the required coating area of the film original plate 1. and then proceed to C mode.

The C mode is a coating work completion process, and the applicator 7 returns to the origin position P in step C1. Return to (Xo, Yo).

In step C2, a pause display or a buzzer or the like is used to indicate the end of the coating operation on the display section of the operation panel.

In step C3, the suction holding of the film original plate 1 and the pressure contact of the clip 15a are released, and the operator removes the film original plate 1 on which the correction fluid has been applied from the original holding surface 14, and starts coating another film original plate again in the same manner. Work is done.

FIG. 6 is a front view schematically showing a second embodiment of the present invention. In this figure, members having the same functions as those in the first embodiment are given the same reference numerals, and their explanations will be omitted.

In FIG. 6, the original plate holding means 2 includes a suction box 42 and a detection means 43 for positioning the film original plate 1 sent through the conveyor belt 46 of the suction box 42 to a reference position. It is configured to hold the film original plate 1 by suction. Note that the reference numeral 44 is a forced exhaust means communicating with the exhaust duct 45 of the suction box 42.

The left and right (X direction) drive means 4 includes a conveyor belt 46 of the suction box 42, a suction type drive roller 47 and driven rollers 48 and 49 around which the conveyor belt 46 is wound, and a drive motor 5o interlocked with the drive roller 47. Prepared. Place the film original plate 1 at the origin position P. During the coating process, the film original plate 1 is intermittently conveyed in the X direction by a predetermined pitch as in the first embodiment, and after the coating process is completed, the film original plate 1 is discharged to the receiving tray 52. It's Nishide.

Note that a cassette 54 containing a plurality of film original plates 1 is detachably attached to the lower side of the suction box 42, and is configured so that the film original plates 1 can be fed out one after another. That is, each film original plate 1 is used as a reference 2.
The side is positioned and accommodated in the cassette 54, and the origin position P is located. (xo, Yo) and is correctly aligned and positioned. Note that the reference numeral 55 is an original plate supplying means made of lenoid or the like, and the cassette 54
A conductive sponge material or the like is attached to the bottom plate to prevent static electricity from being generated between the film base plates and from slipping.

An erection frame similar to that of the first embodiment is fixed above the suction box 42, and a mount 5 is provided so as to be movable in the front-rear direction (Y direction) along the guides 19 thereof. A dryer 38a is provided on the right side of the applicator 7, and is designed to blow hot air onto the correction fluid to accelerate drying.

Note that, of course, an infrared heater may be used in place of the dryer 38a.

On the lower surface of the original plate discharge side of the suction box 42, a blowing means 5 for blowing out a part of the exhaust gas from the forced exhausting means 44 is provided.
8 is provided so that the film original plate 1 that has been coated can be released from the conveyor belt 46 and collected in a tray 52.

FIG. 7 is a flowchart showing the operation and operation mode of the correction fluid application device according to the second embodiment.

In the AA mode which is a preparation process, in step AA1. The cassette 54 containing the film original plate 1 is loaded into the feeding section. Note that the size of the film original plate 1 and the coating area are different for each leaf, so these are measured in advance and input in step AA2.

Also, if the correction fluid is insufficient, step AA is performed.

It is determined in step AA4 and replenished as appropriate.

When started in this state, the drive motor 50 rotates and drives the conveyor belt 46. The film original plate 1 is fed (step AA), and when the film original plate 1 is conveyed to a predetermined position, the sensor 43 detects the arrival of the film original plate 1 (step AA6), and then the film original plate 1 is fed a predetermined distance from there. is transported to the origin position P. (xo, yo)
(Step AA?).

At this time, the applicator 7 is at the origin position P. Return to (Yo). Next, the process proceeds to the B mode, which is a coating process, and the correction fluid is applied to the film original plate 1.

Next, in the CC mode which is the coating work completion process, the applicator 7 returns to the origin P in step CC1. (Xo%Y0) and the conveyor belt 46 is driven. In step CC, the film plate 1 is ejected, and in step 7 CC1, the completion of the work is determined by the presence or absence of the film original plate 1 to be coated.
! 11, and in step CC4, a pause display indicating the end of the coating work is displayed on the display section of the operation panel, and a notification of the end is made by a buzzer or the like.

FIG. 8 is a schematic diagram of a correction fluid application device according to the third embodiment, and the second feature is that a suction type rotary drum 60 is used in place of the suction box 42 and conveyor belt 46 shown in FIG.
This is different from the embodiment. Note that members having the same functions as those in FIG. 6 are designated by the same reference numerals, and their explanations will be omitted.

In the above explanation, the case where the area to be applied with correction fluid is specified using a gauge film or a digital type as shown in FIG. Such an apparatus can be used not only for such cases, but also for correcting pinholes that occur between lines of negative film on which characters are recorded, for example.

As shown in Fig. 3, the start and end points of the character area are specified using a digital type, and the line spacing width and the number of lines to which correction fluid is to be applied are input to the control device via the data input means. By doing so, it is also possible to calculate which part of the character area to apply the correction liquid and fill in the small spaces between lines with the correction liquid.

Furthermore, instead of filling in the general area as described above, for example, the position data of each pinhole is read using a digital type, and based on the position data, the applicator is lowered only at each pinhole position to form a film original. It is also possible to apply correction fluid only to those pinhole positions.

It is also possible to use both the general area filling operation and the individual pinhole position filling operation.
In this case, if necessary, the applicator may be replaced with a thinner one when filling out individual pinholes.

<Effects of the Invention> As explained above, according to the present invention, by specifying the correction fluid application area and inputting data, the correction fluid is automatically applied to the required application area of the film original plate.
This greatly reduces manual coating work, improves the uniformity and accuracy of the finish, and greatly contributes to improving the efficiency of the plate-making process as a whole.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a correction fluid application device showing a first embodiment;
FIG. 2 is a schematic view of the right side thereof, FIG. 3 is a gauge film for measuring the coating area, FIGS. The figure is a schematic diagram of a correction liquid application device according to the second embodiment, and FIG. 7 is a flowchart showing the operation and operation mode of the device.
FIG. 8 is a schematic diagram of a correction fluid application device according to a third embodiment. 1... Film original plate, 2... Original plate holding means, 3...
・Erection frame, 4... Left and right drive means, 5... Frame, 6... Back and forth drive means, 7... Applicator, 8... Applicator drive means, 9... Correction liquid supply means , 10・10a
...Data input means, 11...Control device, 42...
・Suction box, 46...conveyor belt. Patent applicant Dainippon Screen Manufacturing Co., Ltd. No. 80 Aoi '71211

Claims (1)

[Claims] 1. An original holding means for positioning and holding a film original at its reference position; an erection frame installed above the original holding means and movable in the left and right direction relative to the original holding means; a left-right driving means for relatively moving the construction frame in the left-right direction; a pedestal on which a freely driven applicator drive means is mounted; a back-and-forth drive means for moving the pedestal relative to the original plate holding means in the front-back direction; a correction liquid supply means for supplying correction liquid to the applicator; It is equipped with a data input means for specifying and inputting a liquid application area, and a control device for driving and controlling the left and right drive means, the front and rear drive means, and the applicator drive means based on the data input from the data input means, A device for applying correction liquid to a film original plate, characterized in that it is configured to apply correction liquid to a designated area.