JPH02277063A - Development processing device for photosensitive material - Google Patents

Abstract

PURPOSE:To facilitate the operation to clean the device by providing a means for automatically cleaning the respective processing sections; a developing section, washing section and finishing section. CONSTITUTION:Images are printed on a photosensitive material, such as photosensitive planographic printing plate 12 and the photosensitive material is transported successively to the developing section 14, washing section 16 and finishing section 18 of the device 10, by which the material is processed. After the photosensitive material is processed, a cleaning water supplying pump 128 is operated to supply the cleaning water in a water tank 124 to spray pipes 116, 118, 130, 132, 138 from which the water is discharged to a liquid discharge tank 22, skewer type rollers 64, 66 and squeezing roller pair 68 to clean these parts. The cleaning of the washing section 16 and the finishing section 18 by disposing the spray pipes to these processing sections is possible as well.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention supplies a photosensitive material with an image printed thereon with a developing solution in a developing section, and then transports it to a washing section where it is washed with washing water. - It relates to a photosensitive material development processing apparatus that applies a liquid and performs development processing.

[Prior Art] A photosensitive material on which an image has been printed (for example, a photosensitive lithographic printing plate, etc.) is developed in a photosensitive material development processing device.

The photosensitive material development processing apparatus is provided with processing sections such as a developing section, a washing section, and a finishing section, and the photosensitive material undergoes various processing while being conveyed through these processing sections.

[Problems to be Solved by the Invention] However, after the photosensitive material is developed, each processing area becomes dirty with developer, developer residue, and the like.

For this reason, an operator cleans each processing section after the completion of the development process of the photosensitive material, after the end of one day's work, or periodically, but this work is time-consuming and troublesome.

In consideration of the above-mentioned facts, the present invention aims to provide a photosensitive material development processing apparatus that can automatically clean each processing section.

[Means for Solving the Problems] The present invention supplies a developing solution to a photosensitive material on which an image has been printed in a developing section, transports it to a washing section, washes it with washing water, and applies a finisher liquid in a finishing section. The photosensitive material development processing apparatus is characterized in that it is provided with a cleaning means for automatically cleaning each processing section of the developing section, the washing section, and the finishing section.

[Function] According to the present invention having the above configuration, each of the processing sections including the developing section, the washing section, and the finishing section are automatically cleaned by the cleaning means after the photosensitive material is developed.

This facilitates cleaning work.

[Embodiment] FIG. 1 shows an embodiment of a photosensitive material development processing apparatus 10 according to the present invention.

The photosensitive material processing apparatus IO includes a developing section 14 for developing a photosensitive lithographic printing plate (hereinafter referred to as "rPs plate") 12, which is a photosensitive material on which images are printed on both upper and lower surfaces, by a printing device (not shown); It includes a washing section 16 for washing the subsequent 28th plate 12 with water, and a finishing section for applying finishing liquid to the 28th plate 12. These developing section 14, washing section 16, and finishing section 18 are provided in this order, and a 28-plate 1 with images printed on both the upper and lower surfaces.
2 is transported and processed in a substantially horizontal direction.

As shown in FIG. 1, a pair of conveying rollers 20 is arranged on the side where the 28 plate 12 is inserted into the developing section 14. As shown in FIG. This conveying roller pair 20 is rotated by a driving means (not shown) and sends out the inserted 28 plate 12 to the developing section 14.
The developing section 14 is equipped with a drain tank 22 . The drain tank 22 is open at the top and has a substantially inverted mountain shape with the center portion of the bottom protruding downward, and the developer is stored at the bottom.

A fountain wire par 24 is disposed above the drain tank 22 and below the conveyance path on the insertion side of the 28-plate 12, and is supported by a pair of side plates (not shown).

As shown in FIG. 2, this fountain wire cover 24 includes a developer storage tank 28 in which a developer is stored, and a developer located above the developer storage tank 28 and stored in the developer storage tank 28. A wire purifier 30 applies the liquid to the lower surface side of the 28 plate 12, and a developer tank 44 collects the excess liquid after coating.
It is formed by a collection tank 29 for returning to the water.

As shown in FIG.
20 An opening 2 that has a long box shape along the width direction, has a chevron-shaped upper part, and opens upward along the elongated direction.
6 is formed. Half to three quarters of the outer circumference of the wire par 30 is inserted into the opening 26.

The wire par 30 is formed by winding a wire 34 spirally around the outer periphery of a shaft 32.

This wire par 30 is rotated counterclockwise in FIG. 1 by the driving force of a driving means (not shown), and the developer in the developer storage tank 28 is deposited between the windings of the wire 340 and applied to the lower surface of the 28 plate 12. The amount of application is determined by the diameter of the wire 34, and the larger the diameter of the wire 34, the larger the amount of developer that adheres between the wires 34, and therefore the larger the amount of application. Moreover, if the diameter of the wire 34 is small, the amount of coating is small. Further, the coating amount can also be set by the rotation direction and/or rotation speed of the wire par.

Above the fountain wire par 24, the wire par 3
0 is placed. This wire par 30 is 28 version 12
The plate 12 is disposed above the conveyance path, and is disposed so as to be in contact with the upper surface of the 28 plate 12 sent out from the pair of conveyance rollers 20.

A developer guide plate 36 having an L-shaped cross section is arranged diagonally above the wire par 30 between the upper roller of the pair of transport rollers 20 and the wire par 30. The developer guide plate 36 is disposed parallel to the wire par 30 such that one lower end edge of the L-shape is close to the outer periphery of the wire par 30. This developer guide plate 36 is formed long along the width direction of the PS plate 120, and the spray pipe 38 faces it.

The spray pipe 38 has a plurality of discharge ports opening toward a part of the corner of the developer guide plate 36 at equal intervals along the axial direction. A conduit 40 is connected to the spray pipe 38 . This conduit 40 is branched from a conduit 42.

The pipe line 42 communicates with the bottom of the developer tank 44,
A developer supply pump 46 is disposed in the middle. By the operation of this developer supply pump 46, the spray vibe 38
Developing solution is supplied to.

Further, a pipe line 48 branched from the pipe line 42 is connected to the developer storage tank 2.
It is connected to 8. The developer is supplied from the developer tank 44 by the operation of the developer supply pump 46 . The developer recovery tank 29 is connected to a pipe line 41 . This conduit 41
is in communication with the upper part of the developer tank 44.

The developer supplied to the spray vibrator 38 is guided by the developer guide plate 36 and supplied to the wire parr 30, where it is applied onto the PS plate 12 in a predetermined amount.

Further, one end of a pipe line 52 is communicated with the bottom of the developer tank 44 . In the middle of this pipe line 52, a circulation pump 54,
A heat exchanger 56 is arranged.

The other end of the pipe line 52 is communicated with the developer tank 44 again. By the operation of the circulation pump 54, the developer in the developer tank 44 is circulated and heated to a predetermined temperature.

Further, one end of a pipe line 58 is communicated with the bottom of the drain tank 22 . A valve 60 is disposed in the middle of this conduit 58. By opening this valve 60, the developer in the drain tank 22 is discharged to the waste tank 62.

Furthermore, skewer-shaped rollers 64 and 66 are arranged above the waste liquid tank 22. These skewer type rollers 64.66 are 23 version 1
It is disposed below the conveyance path of No. 2, and supports the lower surface of the No. 23 plate 12 that is sent out from the conveyance roller pair 20 and conveyed.

Spray vibes 116 and 118 are disposed within the drain tank 22. The spray vibrator 116 is connected to a conduit 122 branched from the conduit 120, and the spray vibrator 118
is in communication with the tip of the conduit 120. The pipe line 120 is a pipe line 126 whose one end communicates with the wash water storage tank 124.
It is communicated with. A wash water supply pump 128 is disposed in the middle of the pipe line 126.
When the cleaning water is activated, the spray vibration 116.118
supplied to

The spray vibrator 116, 118 has a plurality of washing water discharge ports opening toward the side wall of the drain tank 22 at appropriate intervals along the axial direction. The supplied washing water is discharged into the drain tank 22 from this washing water outlet.

Furthermore, spray vibrators 130 and 132 are disposed upstream of the skewer-shaped rollers 64 and 66 in the conveyance direction of the 23rd plate 12. The spray vibe 130 is in communication with a pipe line 134 branched from the pipe line 126.

The spray vibe 132 is connected to a pipe line 1 branched from the pipe line 126.
It is connected to 36. These spray vibes 130
．． 132 is supplied with rinsing water through lines 126, 134, 136.

The spray vibrator 130, 132 is provided with a plurality of washing water discharge ports at appropriate intervals along the axial direction, and discharges the supplied washing water toward the skewer-shaped rollers 64, 66.

Furthermore, the 23rd version 1 of the upper roller of the squeeze roller pair 68
A spray vibrator 138 is also disposed on the upstream side of No. 2 in the conveyance direction. The spray vibrator 138 is connected to the tip of the conduit 126, and flush water is supplied by the operation of the flush water supply pump 128. This spray vibe 1
38 is also provided with a plurality of washing water discharge ports at appropriate intervals along the axial direction, and discharges the supplied washing water toward the upper roller of the squeeze roller pair 68.

The cleaning water supply pump 128 is activated after the development process for the 23rd plate 12 is completed, or after the work on day 2 is completed, etc.
Supply washing water to No. 8 to wash away dirt.

A squeeze roller pair 68 is arranged between the developing section 14 and the washing section 16. Between the squeeze rollers, a 23rd printing plate 12 is sent out from a pair of conveying rollers 20 and has both upper and lower surfaces coated with a predetermined amount of developer. As a result, developer residue and excess developer adhering to the surface of the 23rd plate 12 are squeezed out.

The washing section 16 is equipped with a washing tank 70, and the washing section 1
A pair of conveying rollers 72 is disposed on the downstream side of the 6/23 plate 12. The transport roller pair 72 is rotated by the driving force of a drive means (not shown), and the PS plate 12 sent out from the squeeze roller pair 68 is inserted and sent to the finishing section 18 .

Spray pipes 74 and 76 are arranged between the squeeze roller pair 68 and the transport roller pair 72. The spray pipe 74 is arranged above the transport path of the PS plate 12, and the spray pipe 76 is arranged below the transport path.

These spray pipes 74 and 76 are provided with discharge ports at equal intervals along the axial direction, and discharge the supplied washing water to the squeeze roller pair 68 and the conveyance roller 72.

The spray pipes 74 , 76 communicate at one end with a conduit 78 that communicates with the bottom of the washing tank 70 .

A flush water supply pump 80 is disposed in the middle of this pipe line 78, and by the operation of this flush water supply pump 80,
Rinsing water 82 contained in the bottom of the rinsing tank 70 is supplied to the spray pipes 74,76.

Further, one end of a pipe line 84 is connected to the bottom of the washing tank 70 . A valve 86 is disposed in the middle of this pipe 84, and when the valve 86 is opened, the flush water 82 in the flush tank 70 is discharged to the waste liquid tank 88.

The finishing section 18 is equipped with a finishing tank 92. A finishing liquid 94 is stored at the bottom of the finishing tank 92.

Two pairs of transport rollers 96 and 98 are arranged above the finishing tank 92 along the transport direction of the PS plate 12. These conveyance roller pairs 96 and 98 are pivotally supported by a pair of side plates (not shown), and are rotated by the driving force of a driving means (not shown). The PS plate 12 sent out from the transport roller pair 72 is inserted into the transport roller pair 96 .
Sent to 8th.

A spray pipe 100, 102 is arranged between the transport roller pair 96 and the transport roller pair 98. The spray pipe 100 is located above the transport path for the PS plate 12, and the spray pipe 102 is located below the transport path. The spray pipes 100 and 102 have a plurality of discharge ports opening toward the conveyance rollers 96 and 98 and are provided at regular intervals along the axial direction. One end of the spray pipes 100 and 102 communicates with the bottom of the finishing tank 92. pipe line 10
It is connected to 4. A Finissinder liquid supply pump 106 is disposed in the middle of this pipe line 104, and the operation of this supply pump 106 supplies the finishing liquid 94 in the finishing tank 92 to the spray pipe 100.10.
2.

Further, one end of a conduit 110 is communicated with the bottom of the finishing tank 92. A valve 1 is located in the middle of this pipe line 110.
When the valve 112 is opened, the finishing liquid 94 in the finishing tank 92 is discharged to the waste liquid tank 114.

Next, the operation of this embodiment will be explained.

The PS plate 12, on which images have been printed on both upper and lower surfaces by a printing device (not shown), is inserted into a pair of transport rollers 20, and then into a developing section 14. The PS plate 12 inserted into the developing section 14 is conveyed substantially horizontally and sent onto the fountain wire par 24.

A predetermined amount of developer 24 is applied to the lower surface side of the PS plate 12 by the wire parr 30 of the fountain wire parr 24 .

When further conveyed, a predetermined amount of developer is applied to the upper surface side by the wire parr 30. In this case spray pipe 3
The developer discharged from 8 is guided by an L-shaped developer guide plate 36 and dripped onto the wire par 30 from one lower edge of the L-shape.

The PS plate 12, whose upper surface has been coated with a predetermined amount of developer 24 by the wire parr 30, is guided by skewer-shaped rollers 64 and 66 and further conveyed, and during this conveyance, the upper and lower surfaces of the PS plate 12 are coated with a predetermined amount of developer ( The photosensitive layer is swollen or dissolved by the i-liquid.

In this state, it is inserted between the pair of squeeze rollers 68, and so-called developer scum, in which the photosensitive layer is swollen or dissolved, and excess developer are squeezed out. P passed between squeeze roller pair 68
The S plate 12 is sent to the upper part of the washing tank, and the transport roller pair 72
inserted between.

During this conveyance, washing water is supplied to both upper and lower surfaces of the PS plate 12 by spray pipes 74 and 76, and developer residue and excess developer remaining on the plate surface are washed away.

The PS plate 12 whose upper and lower surfaces have been washed with water is sent out from between the pair of transport rollers 72 and sent out above the finishing section 18.

P is sent out from the water washing section 16 by the conveying roller pair 72.
The S plate 12 is inserted between the pair of transport rollers 96. The PS plate 12 inserted into the transport roller pair 96 is transported in a substantially horizontal direction and inserted between the transport roller pair 98. During this conveyance, finishing liquid 94 is supplied to both upper and lower surfaces of the PS plate 12 by spray pipes 100 and 102. Finishing fluid 94 by spray pipe 100.102
The PS plate 12 coated with is sent out of the photosensitive material development processing apparatus 10 by a pair of transport rollers 98 and is transported to a drying device (not shown).

After the development processing of the PS plate 12 is completed, when cleaning the developing section, the cleaning water supply pump 128 is operated. By the operation of this wash water supply pump 128, the water tank 1
The cleaning water stored in the spray pipe 116.1
18.130.132.138 and drain tank 2
2. The liquid is discharged to the skewer rollers 64, 66 and squeeze roller pair 68, and these are cleaned.

As described above, in this embodiment, the developing section can be cleaned simply by operating the cleaning water supply pump 128 after the development process of the PS plate 12 is completed, so that cleaning is facilitated.

In this embodiment, the developing section 14 has been described, but the cleaning means is provided in the water washing section 16, the finishing section 18,
It is also possible to clean each processing section.

[Effects of the Invention] As described above, in the present invention, since a cleaning means is provided for cleaning each processing section after the development of the photosensitive material is completed, an excellent effect of facilitating cleaning of the processing section can be obtained.

[Brief explanation of drawings]

FIG. 1 is a schematic configuration diagram showing an embodiment of a photosensitive material processing apparatus to which the present invention is applied, and FIG. 2 is a perspective view showing a fountain wire bar. 10... Photosensitive material development processing device, 12... PS plate, 14... Developing section, 16... Washing section, 18... Finishing section, 116.118.130.132.138... Spray pipe, 120.122.126.134.136... Conduit, 124... ・Water tank. Figure 2

Claims (1)

[Claims] (1) A photosensitive material processing apparatus in which a photosensitive material on which an image has been printed is supplied with a developing solution in a developing section, then transported to a washing section where it is washed with washing water, and then in a finishing section, a finisher solution is applied and developed. A photosensitive material development processing apparatus, characterized in that a cleaning means is provided for automatically cleaning each processing section of the developing section, the washing section, and the finishing section.