JP3943255B2 - Guide structure for photosensitive material processing equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is used in a photosensitive material processing apparatus for processing a processing liquid by immersing it in a processing tank in which a processing liquid is stored while conveying the photosensitive material, and supports the photosensitive material to be processed in the processing tank. The present invention relates to a guide structure for a photosensitive material processing apparatus for guiding in a predetermined transport direction.
[0002]
[Prior art]
A photosensitive material, for example, a photosensitive lithographic printing plate (hereinafter referred to as “PS plate”) is developed by a photosensitive lithographic printing plate processing apparatus (hereinafter referred to as “PS plate processor”). In this PS plate processor, the PS plate on which an image is recorded is immersed in the developer stored in the developer tank while being conveyed in the developer tank, and the PS plate is rubbed by a rubbing means such as a rotating brush roller in the developer. The photosensitive layer of the non-image portion is removed. The PS plate that has been developed in this manner is washed with rinsing water in the water washing section (water washing treatment), and then the gum solution is applied in the desensitizing treatment section (desensitizing treatment) to protect the plate surface and the like. Processing is performed continuously.
[0003]
Here, conventionally, the PS plate is supported by a plurality of idle rollers, sandwiched between a pair of transport rollers, and transported by receiving a driving force.
[0004]
[Problems to be solved by the invention]
However, as described above, when a plurality of idle rollers are used, the number of parts increases, and there is a problem that it takes time for assembly work and removal work for maintenance, and further increases the cost.
[0005]
In view of the above facts, the present invention provides a guide structure for a photosensitive material processing apparatus that can be manufactured at a low cost by reducing the number of parts, enabling assembly work and removal work during maintenance in a short time. Is the purpose.
[0006]
[Means for Solving the Problems]
The invention according to claim 1 is a photosensitive material processing apparatus guide structure for supporting and guiding a photosensitive material in a predetermined conveyance direction, wherein the photosensitive material processing apparatus guide structure is provided below the photosensitive material conveyance path. A guide plate provided along the guide plate and an appropriate portion of the guide plate so as to be independently rotatable. At least a part of the outer peripheral portion is closer to the photosensitive material conveyance path than the surface of the guide plate. a protruding roller-shaped rotary body, the possess, when the conveyance path is curved in a projecting downward, the arrangement density of the roller-shaped rotary body, the upstream side of the conveying path and The downstream vicinity is rough and the center is dense .
According to the first aspect of the present invention, a guide plate in which a roller-like rotator such as a roller roller (hereinafter referred to as a roller roller) is appropriately assembled is provided along the photosensitive material conveyance path such as in the processing tank. As a result, the number of parts can be reduced, and the assembly work and the removal work during maintenance can be performed in a short time.
[0007]
According to the invention described in claim 1, roller-shaped rotary body, such as Kororora (hereinafter referred to as Kororora) as a provided in the guide plate assembled in appropriate positions along the transport path of the photosensitive material, such as the processing tank As a result, the number of parts can be reduced, and the assembly work and the removal work during maintenance can be performed in a short time.
[0008]
Further, the Kororora provided in the guide plate is rotatable independently, when the photosensitive material comes is inserted into the processing tank, when the photosensitive material is in contact with the tip portion protruding from the guide plate, the light-sensitive material Rotation is started by the transport force of. For this reason, sliding does not occur between the photosensitive material and the roller, and as a result, the photosensitive material is not damaged.
[0009]
In the present invention, when the front Symbol conveying path is curved in a projecting downward, the arrangement density of the roller-shaped rotary body, the upstream and downstream vicinity of the transport path is rough, the central portion that is dense.
[0010]
During transport of the sensitive light material, depending on the strength of the waist of the photosensitive material, the upstream and downstream side of the guide plate, there is the photosensitive material hardly contact the Kororora. It is useless to evenly arrange the roller rollers in such a part. For example, when a PS plate is applied as a photosensitive material, the PS plate often uses an aluminum plate as a base, and is relatively firm. For this reason, the roller is not touched in the vicinity of the inlet and outlet of the treatment tank.
Therefore, the roller roller at this portion is unnecessary and is removed in advance. Thereby, the number of parts can be minimized. Moreover, if the removed part becomes an opening, the fluidity | liquidity of a process liquid will also improve.
According to a second aspect of the present invention, in the first aspect of the present invention, the guide plate is elastically deformed with a bearing portion that can rotatably accommodate the rotating shaft of the roller-shaped rotating body at the appropriate portion of the guide plate. And a claw portion capable of accommodating and holding the rotating shaft in the bearing portion.
According to the second aspect of the present invention, the roller rollers can be attached and detached independently, whereby the arrangement density can be changed according to the conveyance path of the photosensitive material to be processed.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows a photosensitive lithographic printing plate processing apparatus (hereinafter referred to as “PS plate processor 10”) applied to the present embodiment. The PS plate processor 10 sensitizes a non-image portion while immersing a photosensitive lithographic printing plate (hereinafter referred to as “PS plate 12”) in which images are printed on both sides of a PS plate by a printing apparatus (not shown) in a developer. The layer is removed by rubbing means such as a brush roller.
[0012]
The PS plate processor 10 includes a developing unit 22 for removing unnecessary portions of the photosensitive layer of the PS plate 12, a water washing unit 24 for washing the developer adhering to the PS plate 12 with water, and a PS after washing with water. A finisher portion 26 for applying a gum solution to the plate 12 and desensitizing the plate 12 is disposed.
[0013]
The outer panel 14 is provided with a slit-like insertion port 34 and a discharge port 36, respectively. An insertion table 16 is attached to the outside of the insertion port 34 to guide insertion of the PS plate 12 into the insertion port 34.
[0014]
A reentry insertion port (sub-insertion port) 38 for inserting the PS plate 12 is provided between the developing unit 22 and the water washing unit 24 on the upper surface of the outer panel 14. The sub insertion port 38 is used as an insertion port for the PS plate 12 for performing processing after water washing excluding processing in the developing unit 22.
[0015]
On the insertion side of the PS plate 12 into the developing unit 22, a pair of rubber conveyance rollers 32 is disposed, and the PS plate 12 on which an image is baked between the pair of conveyance rollers 32 is inserted from the insertion port 34. It is supposed to be inserted. The pair of transport rollers 32 are rotated by a driving force of a driving unit (not shown), and the PS plate 12 is fed toward the developing unit 22 at an angle of about 15 ° to 30 ° with respect to the horizontal direction, and about 17 ° to 31 °. It is designed to send out at an angle of.
[0016]
The developing unit 22 is a substantially inverted mountain-shaped processing tank whose upper part is opened and whose bottom center part protrudes downward. In the developing part 22, there is a lower side along the conveying direction of the PS plate 12. A guide plate 100 is provided. As shown in FIG. 2, the guide plate 100 is divided into two in the transport direction of the PS plate 12, and a skewer roller 111 is disposed therebetween.
[0017]
The guide plate 100, roller rollers (small roller) 102 as a plurality of roller-shaped rotary body has attached, PS plate 12 is adapted to be conveyed while being guided in contact with the Kororora 102 . At this time, since the roller 102 rotates, the PS plate 12 is not damaged by sliding.
[0018]
As shown in FIG. 1, the guide plate 100 has an inverted mountain shape along the shape of the developing unit 22, and the brush roller 106 is positioned at a position corresponding to the upper surface of the PS plate 12 on the downstream side of the lowest position. Is arranged. A brush roller 108 is disposed at the downstream end of the guide plate 100 so as to correspond to the lower surface of the PS plate 12.
[0019]
The brush rollers 106 and 108 are configured to rotate along the conveying direction of the PS plate 12 when a driving force of a driving unit (not shown) is transmitted. Note that at least one of the plush rollers 106 and 108 may be rotated in the direction opposite to the conveyance direction.
[0020]
The brush rollers 106 and 108 have a role of scraping off the unnecessary photosensitive layer on the surface swollen by the developing solution of the developing unit 22, and in order to sufficiently perform this function, the PS plate 12 is pressed to a predetermined level. It is necessary to press with pressure. For this reason, a part of the roller 102 attached to the guide plate 100 corresponds to the brush roller 106, and the skewer roller 110 corresponds to the brush roller 108. Thereby, the PS plate 12 is conveyed while contacting the brush rollers 106 and 108 with a predetermined pressing force, and the unnecessary photosensitive layer can be reliably removed.
[0021]
Further on the downstream side of the position where the brush roller 108 and skewer roller 110 are disposed, a skewer roller 112 is disposed so as to face the lower surface of the PS plate 12, and supports the PS plate 12 being conveyed. Yes. The PS plate 12 supported and transported by the skewer roller 112 is discharged from the liquid surface of the developing unit 22 and is sandwiched between a pair of rubber transport rollers 114 disposed at the final stage position of the developing unit 22. The developer attached to the surface is squeezed out.
[0022]
A liquid level cover 50 is disposed on the developer surface of the developing unit 22. The liquid level cover 50 is disposed so that the lower surface is lower than the level of the developer, so that the contact between the developer level and the air is minimized, and the developer is deteriorated by carbon dioxide gas and moisture in the developer. Prevents evaporation.
[0023]
Here, blades 116 are attached to the front and rear ends of the liquid surface lid 50 in the transport direction of the PS plate 12 and the outer panel 14 in the vicinity thereof. The blades 116 are disposed so as to be in contact with upper and lower rollers of the upstream conveying roller pair 32 and the downstream conveying roller pair 114, and are developed together with a shutter 272 provided in the insertion port 256 of the drying device 250. Deterioration of the developer due to carbon dioxide gas generated by exposure of the solution to the outside air and evaporation of moisture in the developer are prevented.
[0024]
Furthermore, Ekimenfuta 50, top prevents the flow of air in both the developing unit 22 and the cover fits into a groove formed on the lower surface of the cover, carbon dioxide new outside air touching the developer It is possible to prevent the deterioration of the developer due to, and the promotion of evaporation of moisture in the developer.
[0025]
Further, skewer rollers 118 and 120 are attached to the front and rear corners in the transport direction of the PS plate 12 on the lower surface of the liquid level cover 50, respectively. The skewer rollers 118 and 120 serve to prevent contact with the liquid level cover 50 when the PS plate 12 is conveyed. As a result, even if a slight slack occurs during the transport of the PS plate 12, the upper surface of the PS plate 12 does not hit the hard liquid surface lid 50 that damages the photosensitive surface.
[0026]
The pair of conveying rollers 114 on the downstream side of the developing unit 22 is rotated by receiving a driving force of a driving unit (not shown) so as to send the PS plate 12 to the water washing unit 24 which is the next process.
[0027]
In the water washing section 24, two pairs of transport rollers 52 and 53 are disposed. These conveying roller pairs 52 and 53 are rotated by receiving a driving force of a driving means (not shown), and form a conveying path for the PS plate 12 fed from the developing unit 22.
[0028]
Spray pipes 56 and 122 are disposed between the transport roller 52 and the transport roller 53 and at the upper and lower positions of the transport path. The spray pipes 56 and 122 are arranged along the axis of the transport rollers 52 and 53. Discharge holes that are disposed and communicate with the inside of the pipe are provided at positions facing the PS plate 12, respectively. The washing water pumped up by a pump from a washing water tank (not shown) is discharged from the discharge holes of the spray pipes 56 and 122 toward the PS plate 12 and spreads quickly on the front and back surfaces of the PS plate 12, The back side is washed with water. The washing water adhering to the PS plate 12 is squeezed out by the pair of conveying rollers 53.
[0029]
A pair of transport rollers 58 is provided in the finisher section 26 which is a desensitizing treatment section on the downstream side of the water washing section 24. The PS plate 12 delivered by the conveyance roller 53 is guided to the conveyance roller 58.
[0030]
A spray pipe 124 is disposed upstream of the transport roller 58 and above the transport path. The spray pipe 124 is disposed in parallel with the axis of the transport roller 58, and its discharge hole has a PS plate. 12 is provided. From the spray pipe 124, a gum solution pumped from a gum solution tank (not shown) is dropped onto the PS plate 12, spreads on the surface of the PS plate 12, and forms a protective film on the surface of the PS plate 12.
[0031]
Further, a discharge unit 126 in which a slit continuous in the width direction of the PS plate 12 is formed is disposed on the upstream side of the conveyance roller 58 and below the conveyance path. The discharge unit 126 has a structure in which the gum solution is supplied in the same manner as the spray pipe 124 and the gum solution is discharged from the slit. The PS plate 12 is conveyed while the back surface is in contact with the slit portion of the ejection unit 126. It has come to be. That is, since the slit extends over the entire width of the PS plate 12, a protective film can be formed on the entire lower surface of the PS plate 12 with the gum solution.
[0032]
The PS plate 12 that has been applied with the gum solution by the finisher section 26 is nipped and conveyed by the conveying roller pair 58, and is discharged from the discharge port 36 in a state where a little gum solution remains on the front and back surfaces.
[0033]
A drying device 250 is disposed on the downstream side of the finisher section 26, that is, on the final process section of the PS plate processor 10.
[0034]
The drying device 250 has a support roller 270 that supports the PS plate 12 in the vicinity of the discharge port 36, and the PS plate 12 is sandwiched in the vicinity of the center of the conveyance path of the drying device 250 and in the vicinity of the discharge port 258. Two pairs of conveying rollers 252 and 254 to be provided are disposed. Incidentally, a cross section perpendicular to the shaft shape of the conveying rollers 252 of the supporting roller 270 and the central portion is a flower, Ru is rotated together with the molleton roller 254 wound hygroscopic nonwoven provided near the discharge port 258.
[0035]
Further, instead of the pair of molton rollers 254, a pair of rubber rollers and a pair of flower skewers similar to the conveying roller 252 may be provided in combination.
[0036]
As a result, the processing in the finisher unit 26 is completed, and the PS plate 12 discharged from the discharge port 36 is inserted into the drying device 250. The drying device 150 may be separable from the process unit up to the finisher unit 26. The discharge port 36 is provided with a shutter 272.
Between the support roller 270 and the transport roller 252, and between the transport roller 252 and the transport roller 254, two pairs of ducts 260 for blowing dry air to the PS plate are disposed. The two pairs of ducts 260 are arranged to face each other across the conveyance path of the PS plate 12. One duct 260 is positioned above the transport path, and the other duct 260 is positioned below the transport path.
[0037]
The longitudinal direction of the duct 260 is arranged along the width direction of the PS plate 12, and the surface facing the PS plate 12 is parallel to the PS plate 12. A slit hole 262 is provided in the opposite surface along the longitudinal direction, and serves as an outlet for drying air to be blown to the PS plate 12.
[0038]
One end surface of the duct 26 0 is connected to the dry air guide duct (not shown). This dry wind guide duct is a rectangular chimney type, and its lower end opening is connected to a blower opening (not shown). Thus, the duct 26 0, the same amount of drying air is adapted to be introduced.
[0039]
FIG. 2 shows details of the guide plate 100 in the developing unit 22.
[0040]
The guide plate 100 includes an inlet side guide plate 100A that guides the PS plate 12 from the liquid level to the liquid bottom, and an exit side guide plate 100B that guides the PS plate 12 from the liquid level to the liquid level with the skewer roller 111 interposed therebetween. It is configured.
[0041]
Since the entrance side guide plate 100A and the exit side guide plate 100B are arranged point-symmetrically with respect to the middle in the axial direction of the skewer roller 111, the entrance side guide plate 100A will be described below as an example. .
[0042]
The entry-side guide plate 100A is constituted by three guide plate assemblies 280 having the same shape (see FIG. 2). That is, the entrance guide plate 100A is formed by setting the guide plate assembly 280 to be triple.
[0043]
The guide plate assembly 280 is formed in an arc shape, and ribs 282 that are parallel to each other and have a uniform pitch along the conveying direction of the PS plate 12 are formed on the inner peripheral surface side thereof. The rib 282 has a role of supporting the PS plate 12, but normally does not come into direct contact with the PS plate 12. That is, it is provided to prevent the PS plate 12 from coming into contact with the surface (inner peripheral surface) of the guide plate assembly 280 when it is transported out of the normal transport path. The rib 282 is made of ultra high molecular polyethylene, Teflon (R) resin, or the like.
[0044]
A plurality of rectangular holes 284 are provided on each rectangular inner peripheral surface having a long side in the direction along the conveying direction of the PS plate 12 defined by the ribs 282. In FIG. 2, a rectangular hole 284 indicated by a chain line is not opened in this embodiment. This is in consideration of the fact that the photosensitive material to be processed is the PS plate 12, and the details will be described later. However, the rectangular hole 284 is not provided at a position where the PS plate 12 hardly comes into contact with the PS plate 12 when it is transported. I am doing so.
[0045]
Including an imaginary rectangular hole 284 indicated by a chain line, it is possible to provide a total of seven rectangular holes 284 on one rectangular inner peripheral surface. In the present embodiment, when the guide plate assembly 280 is disposed in the developing unit 22, the rectangular hole actually provided is closer to one side corresponding to the inlet side of the developing unit 22 and one side corresponding to the outlet side. The number of 284 is small (coarse arrangement), and the number increases (dense arrangement) toward the other side.
[0046]
In the above description, the skewer roller 111 is disposed between the entrance guide plate 100A and the exit guide plate 100B. However, the entrance guide plate 100A and the exit guide plate 100B are not provided with the skewer roller 111. May be provided along the transport path from the inlet side of the developing unit 22 to the lower side of the transport path of the PS plate 12. At this time, the number of roller rollers 102 attached to the guide plate 100 is one side corresponding to the inlet side of the developing unit 22 of the guide plate 100 and the center portion closer to the other side in the coarser arrangement as it approaches one side corresponding to the outlet side. The closer it is, the denser the array.
[0047]
As shown in FIG. 3, the roller 102 is attached to each of the rectangular holes 284. The roller 102 protrudes from the inner peripheral surface of the guide plate assembly 280 and the rib 282 in the transport path direction of the PS plate 12 in the attached state. As a result, the PS plate 12 is actually the peripheral surface of the roller roller 102. It is the structure supported and supported by.
[0048]
Here, the PS plate 12 has a base made of a metal plate such as an aluminum plate, and is relatively firm. Due to the strength of the waist, when the PS plate 12 reaches the developing unit 22, the leading end is held in a so-called cantilever state, so that the PS plate 12 does not hang down on the guide plate 100 disposed below the PS plate 12. For this reason, since there is no approach to the guide plate 100 at this position, there is no contact with the roller 102. Therefore, the arrangement of the roller rollers 102 at the entry side portion is a rough arrangement.
[0049]
On the other hand, on the exit side of the developing unit 22, similarly, the front end portion of the PS plate 12 is lifted by the bending of the central portion, and hardly approaches the guide plate assembly 280. For this reason, since it does not contact with the roller 102, the arrangement of the roller 102 at the outlet side is a rough arrangement. As shown in FIG. 2, when viewed as a whole of the guide plate 100, the first and second rows on the upstream and downstream sides of the skewer roller 111 are dense, the third row is coarse every other row, the fourth row and The fifth row is dense, then the sixth and seventh rows are in order of every other coarse.
[0050]
As shown in FIGS. 4 and 5, the rectangular hole 284 in which the roller 102 is disposed has bearing portions 286 that receive the shaft 102 </ b> A of the roller 102 at both ends corresponding to the width direction of the PS plate 12. Yes. The bearing portion 286 is formed with a notch groove on an arc, and the opened inner peripheral surface is directed to the transport path of the PS plate 12. The inner peripheral surface is 50% of the entire periphery, and claw portions 288 are formed to project from both ends of the inner periphery toward the center of the arc. As a result, when the shaft 102A of the roller 102 is to be pivotally supported by the bearing portion 286, a slight resistance is generated. When further pressing is performed against this resistance force, the claw portion 288 is elastically deformed, and the shaft 102A enters the bearing portion 286 and is pivotally supported.
[0051]
By connecting three guide plate assemblies 280 in the width direction of the PS plate 12, the input side guide plate 100 </ b> A and the output side guide plate 100 can be configured. By arranging this at a predetermined position, the conveyance path guide structure for the PS plate 12 is completed.
[0052]
In addition to the rectangular hole 284, the guide plate 100 is provided with a silicate solid substance generated from components such as the photosensitive layer removed from the PS plate 12 from above at the inlet side for developing solution circulation provided at the bottom of the developing unit 22. You may provide the hole made to pass through.
[0053]
Further, the exit guide plate 100B is divided into two in the transport direction and disposed in the developing unit 22, and a pair of transport rollers is provided therebetween, and even the short-sized PS plate 12 is sandwiched and transported by the pair of transport rollers. By doing so, it may be possible to reliably convey.
[0054]
The operation of this embodiment will be described below.
[0055]
The PS plate 12 on which an image is recorded by a printing apparatus (not shown) or the like is placed on the insertion table 16 and then fed to the back side of the insertion table 16 and inserted from the insertion port 34. The inserted PS plate 12 is pulled in by the pair of transport rollers 32 and sent to the developing unit 22. When the leading end of the PS plate 12 passes through the insertion port 34, this is detected by a sensor and a timer is started. This timer measures the timing at which flush water is discharged from the spray pipe 56 of the flush unit 24 and the timing at which the gum solution is discharged at the finisher unit 26.
[0056]
In the developing unit 22, the PS plate 12 is guided downward from the pair of transport rollers 32 by the guide plate 100, is sent at an angle of 15 ° to 30 ° with respect to the horizontal, and is sent out at an angle of 17 ° to 31 °. At this time, the PS plate 12 is supported by the roller 102 provided on the guide plate 100, and the roller 102 is rotated during conveyance, so that the PS plate 12 is not damaged by sliding.
[0057]
While being guided by the guide plate 100 (actually, the roller 102), the PS plate 12 is brushed on the front and back surfaces by the brush rollers 106 and 108. By this brushing, an unnecessary photosensitive layer swollen on the surface of the PS plate 12 can be removed.
[0058]
In this way, the PS plate 12 whose front and back surfaces have been uniformly rubbed is drawn out of the developing unit 22 while the developer is being squeezed out by the conveying roller pair 114, and is sent to the washing unit 24. 52 and 53 are nipped and conveyed. When the PS plate 12 is sandwiched between the pair of transport rollers 52, the leading end of the PS plate 12 is first guided to be sandwiched between the pair of transport rollers after contacting the lower roller of the pair of transport rollers 52. The
[0059]
Thereafter, when it is determined that the time from the insertion time measured by the timer has reached a predetermined time and the leading end of the PS plate 12 has reached the downstream roller pair 53, the spray pipes 56 and 122 are directed toward the front and back surfaces of the PS plate 12. Wash water is discharged, washed with this wash water, and the wash water adhering to the front and back surfaces of the PS plate 12 is squeezed out by the pair of transport rollers 53.
[0060]
When the water washing process is completed, the PS plate 12 is sent to the finisher unit 26 and is nipped and conveyed by the pair of conveying rollers 58. Here, the gum solution discharged from the spray pipe 124 and the discharge unit 126 is applied to the front and back surfaces of the PS plate 12 and subjected to a desensitization process. The desensitized PS plate 12 passes through the discharge port 36 from the finisher unit 26 and is sent out to a drying unit (not shown).
[0061]
Here, in the developing unit 22, the guide plate 100 is disposed below the PS plate 12 conveyance path, and a plurality of roller rollers 102 are provided. Therefore, the PS plate 12 deviates from the conveyance direction. Without being transported through an appropriate transport path.
[0062]
Further, since the plurality of roller rollers 102 are provided on the guide plate 100 and the roller rollers 102 can be rotated independently, the roller roller 102 is rotated by the conveying force of the PS plate 12 when the PS plate 12 comes into contact. For this reason, there is no sliding and the PS plate 12 is not damaged.
[0063]
Since the rib 282 is provided on the guide plate 100 except for the normal conveyance of the PS plate 12, the PS plate 12 may touch the guide surface side of the guide plate 100 in a place where the roller 102 is not provided. The PS plate 12 does not adhere to the guide surface of the guide plate 100, and the transportability of the PS plate 12 can be maintained.
[0064]
Further, since the roller 102 is freely detachable from the rectangular hole 284, the roller 102 can be attached to the guide plate 100 by being thinned as necessary. However, in this embodiment, since the photosensitive material is limited to the PS plate 12, the rectangular hole 284 is not provided in a place that is not necessary in advance (see the chain line in FIG. 2).
[0065]
By the way, since the base of the PS plate 12 is an aluminum plate, it is relatively firm. For this reason, immediately after the PS plate 12 is inserted into the developing unit 22, the tip is conveyed away from the guide plate 100 in a cantilevered state due to the strength of the waist. Therefore, the roller 102 is not required on the insertion side of the developing unit 22. Further, since the PS plate 12 is sandwiched between the transport rollers 114 on the discharge side of the developing portion, the rear end portion is also cantilevered and discharged in a state of being sufficiently separated from the guide plate 100. Therefore, the roller 102 is not necessary on the discharge side.
In consideration of the above, in the present embodiment, the arrangement distribution of the roller rollers 102 is set as follows based on the skewer roller 111 at the center of the guide plate 100.
[0066]
That is, the first and second rows on the upstream and downstream sides of the skewer roller 111 are dense, the third row is coarse every other row, the fourth row is dense, the fifth row is dense, the sixth row and every seventh row are every other row. The crude sequence distribution was.
[0067]
As described above, since the roller 102 is disposed only in a necessary portion, the number of parts can be reduced. Further, in this embodiment, an unnecessary rectangular hole 284 (see the chain line in FIG. 2) is provided and the mechanism that the roller roller 102 is not mounted is not adopted. However, the rectangular hole 284 may be provided in advance in all regions. A rectangular hole 284 to which no roller roller is attached may be applied as a developer flow path between the front side and the back side of the guide plate 100.
[0068]
The roller roller 102 can be attached and detached easily by elastically deforming the claw portion 288 provided on the bearing portion 286. For example, when the roller roller 102 is mounted, the shaft 102A is placed between the pair of claw portions 288, and the roller roller 102 is attached. Is pressed toward the bearing portion 286 of the arc surface. As a result, the claw portion 288 is elastically deformed to form an insertion path of the shaft 102A into the bearing portion 286, the shaft 102A enters between the bearing portion 286 and the claw portion 288, and the roller 102 is securely attached to the bearing portion 286. Be supported.
[0069]
On the other hand, when removing the roller 102, the roller 102 may be held by hand and the shaft 102 </ b> A may be pulled out from the bearing portion 286. However, the shaft 102 </ b> A is removed with the claw 288 elastically deformed by some jig. It is preferable.
[0070]
As described above, in the present embodiment, a plurality of roller rollers 102 that can be attached to and detached from the guide plate 100 that guides the lower side of the transport path of the PS plate 12 are provided, and the roller rollers 102 are disposed on the insertion side of the developing unit 22 and discharged. Since the side arrangement distribution is rough and the central portion is dense to correspond to the waist strength of the PS plate 12, unnecessary roller rollers 102 need not be provided, and the number of parts can be reduced.
[0071]
Furthermore, since the guide plate 100 is formed by connecting a plurality of (six in this embodiment) guide plate assemblies 280, it can be easily attached and detached during maintenance. Also, it can be applied to different models (for example, models with different width dimensions) by simply changing the number of connections, and is highly versatile.
[0072]
In this embodiment, the processing of the PS plate 12 having the photosensitive layers on both the front and back sides has been described. However, when processing the PS plate 12 having the photosensitive layer only on the front surface side (upper surface side), the roller 102 is disposed. The guide plate 100 that is not provided may be disposed in the developing unit 22 in the same manner as in the present embodiment. At this time, the structure which does not provide the rib 282 in the guide plate 100 may be sufficient.
[0073]
【The invention's effect】
As described above, the guide structure for a photosensitive material processing apparatus according to the present invention has an excellent effect that the number of parts can be reduced and the assembling work and the detaching work at the time of maintenance can be performed in a short time.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of a PS plate processor according to an embodiment.
FIG. 2 is a plan view of a guide plate.
FIG. 3 is an exploded perspective view showing a rectangular hole and a roller roller provided in the guide plate.
FIG. 4 is a plan view of a rectangular hole provided in the guide plate.
5 is a cross-sectional view taken along line VV in FIG.
[Explanation of symbols]
10 PS plate processor (photosensitive lithographic printing plate processor)
12 PS plate (photosensitive lithographic printing plate)
22 Developing section 24 Flushing section 26 Finisher section 100 Guide plate 100A Inlet side guide plate 100B Outlet side guide plate 102 Roller roller 280 Guide plate assembly 282 Rib 284 Rectangular hole 286 Bearing portion 288 Claw portion

Claims (2)

A photosensitive material processing apparatus guide structure for supporting and guiding a photosensitive material in a predetermined transport direction,
A guide plate provided along the transport path below the transport path of the photosensitive material;
A roller-like rotator that is rotatably arranged at appropriate positions on the guide plate, and at least a part of the outer peripheral portion protrudes from the surface of the guide plate to the conveyance path side of the photosensitive material;
Have a, when the conveyance path is curved in a projecting downward, the arrangement density of the roller-shaped rotary body, the upstream and downstream vicinity of the transport path crude, the central portion A guide structure for a photosensitive material processing apparatus, wherein the guide structure is dense . A bearing portion capable of rotatably accommodating the rotating shaft of the roller-shaped rotating body at the appropriate portion of the guide plate, and a claw portion capable of accommodating and holding the rotating shaft in the bearing portion by elastic deformation. And a guide structure for a photosensitive material processing apparatus according to claim 1.

Images