JPH11218846A - Photosensitive material carrying device for photographic processing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a photosensitive material smoothly restorable from a development processing part side to an exposure part side in a short time by judging whether or not the trailing edge of the photosensitive material has passed a specified position when a holding means passes the specified position. SOLUTION: One end in the length direction of the photosensitive material is transferred to a pair of receiving rollers 62 based on the length of the photosensitive material detected by a detector by the judgment part of a carrying control means. Thereafter, whether or not the trailing edge of the photosensitive material has passed a specified position toward the development processing part is judged when the photosensitive material passes the specified position on a boundary between a 1st straight line part 26c and an inclined part 26d in the midst of moving holding rollers 40 and 41 toward the exposure part. In the case of judging that it has not passed there, the rollers 40 and 41 are stopped only for a specified time so that they may pass the specified position immediately after the photosensitive material passes the specified position. After that, a motor 54 is driven to move the rollers 40 and 41 toward the exposure part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photosensitive material transport apparatus for transporting a photosensitive material along a transport path from a first processing section to a second processing section, for example, from an exposure section to a development processing section in a photographic processor. About.

[0002]

2. Description of the Related Art Generally, in a photographic processor, as shown schematically in FIG. 10, a photosensitive material 10 wound in a roll 11 around a magazine 11 in an exposure unit 1 is fed by a feed roller.
Photosensitive material 10 cut to each frame length by cutter 12
Is sent to the exposure table 13. On the exposure table 13, there is provided a non-woven belt 14 which is rotated by rollers, and the endless belt 14 moves to feed the photosensitive material 10 to a predetermined position. Then, the photosensitive material 10 sent to a predetermined position on the exposure table 13 is exposed to light from the light source 15 so that the image of the film F held on the negative mask 17 via the mirror tunnel 16, the negative mask 17, the lens unit 18 and the like is printed. Thereafter, the photosensitive material is transferred to the next development processing section 2 by the photosensitive material transport device B.

The above-mentioned photographic processor is, as apparent from the plan view of the photographic processor shown in FIG.
Is shifted in the left-right direction with respect to the transport path in the developing unit 2, and as is apparent from FIG. 10, the height at which the photosensitive material 10 is discharged from the exposing unit 1 The loading height of the photosensitive material 10 is also different.

[0004] The reason for the shift in the left-right direction is as shown in FIG.
This is because the replenishment tank and the waste liquid tank required for the development processing unit 2 are arranged in the space indicated by the symbol S, and the exposure unit 1 cannot be arranged in this space S. From the above circumstances, the photosensitive material 1 is transferred from the exposure unit 1 to the development processing unit 2.
In order to convey 0, it is necessary to convey the photosensitive material 10 in the left-right direction and in the up-down direction, and it is necessary to provide a photosensitive material conveying device for performing this conveyance.

Accordingly, the applicant of the present application has developed a photosensitive material transporting device capable of smoothly transporting a photosensitive material to a developing processing section which is displaced in the left-right direction and the up-down direction from the exposure section, and has already filed an application (Japanese Patent Application No. Hei. No. 9-93708). The photosensitive material transport device basically includes a holding unit for holding the photosensitive material, a left-right guide unit for guiding the holding unit in the transfer path from the outlet of the first processing unit mainly in the left-right direction, and the left-right guide. A guide mechanism having an up-down guide portion for guiding the holding means mainly in the up-down direction from a position guided in the left-right direction by the section, and a drive mechanism for moving the holding portion along the guide path along the guide mechanism, After holding the photosensitive material carried out from the first processing unit by the holding unit, the holding unit is first moved in the left-right direction along the left-right guide portion of the guide mechanism in the transport path, and the holding unit is rotated. After changing the direction of the photosensitive material,
By moving the photosensitive material further upward along the vertical guide portion and transferring one end of the photosensitive material to the development processing portion at the movement end position, the photosensitive material is conveyed from the exposure portion to the development processing portion. ing.

[0006] After the holding section having conveyed the photosensitive material is lowered along the vertical guide section, the holding section is moved left and right along the left and right guide sections, and the holding section is returned to the exposure section side. The next photosensitive material discharged from the exposure unit is subsequently conveyed.

[0007]

In the above-described transfer apparatus, the holding section transfers the sheet from the exposure section to the developing section, and transfers one end in the length direction to the entrance of the developing section. If the holding unit is returned to the exposure unit side, when the holding unit transitions from the vertical guide unit to the left-right guide unit, if the other end in the length direction of the photosensitive material has not yet been removed from the holding unit As a result, the photosensitive material is caught on the holding portion, and the transport of the photosensitive material becomes impossible.

Therefore, in the above-described transport device, the photosensitive material is transported from the exposure unit to the development processing unit by the holding unit, and one end in the longitudinal direction of the photosensitive material is delivered to the entrance of the development processing unit. Until the other end in the longitudinal direction of the photosensitive material is removed from the holding unit and conveyed into the developing unit, the holding unit is stopped on the developing unit side. The holding unit is returned to the exposure unit via the guide mechanism, and the next photosensitive material discharged from the exposure unit is transported.

For this reason, in the above-described transport device, the time required for the holding unit to return from the developing unit to the exposing unit becomes longer, so that the next photosensitive material discharged from the exposing unit is carried into the developing unit. It takes time, and the processing capacity of the photographic processor is reduced as a whole. The present invention has been developed in view of the above circumstances, and an object of the present invention is to provide, for example, a photosensitive material transport apparatus that can smoothly and quickly return from the development processing section to the exposure section. is there.

[0010]

In order to achieve the above object, according to the first aspect of the present invention, the outlet of the photosensitive material in the first processing unit is vertically movable with respect to the entrance of the photosensitive material in the second processing unit. In a photo processor that is shifted in the horizontal direction,
A photosensitive material transport device for transporting the photosensitive material processed in the first processing unit to the second processing unit along a transport path includes a holding unit for holding the photosensitive material, and an outlet of the first processing unit. A guide mechanism having a left-right guide part for guiding the holding means in the left-right direction, a vertical guide part for further guiding the holding means in the vertical direction from the position guided in the left-right direction by the left-right guide part, and the holding means. A drive unit for moving the transport path along the mechanism; and a control unit for controlling the drive of the drive unit, the control unit holding the photosensitive material after one end in the length direction of the photosensitive material is transferred to the second processing unit. While moving the unit toward the first processing unit, whether the rear end of the photosensitive material has passed through the specific position toward the second processing unit when the holding unit passes the specific position. Judge A determining unit that determines that the rear end of the photosensitive material has finished passing the specific position when the holding unit has moved to the specific position. Is moved toward the first processing unit as it is, and if the determination unit determines that the rear end of the photosensitive material has not passed the specific position, it is determined that the photosensitive material does not pass the specific position. After waiting, the driving unit is controlled to move the holding unit toward the first processing unit.

A specific example of the specific position according to the first aspect is that the specific position is a boundary between the vertical guide portion and the horizontal guide portion. As a specific example of the first processing unit and the second processing unit, the first processing unit is an exposure unit that prints an image of a photographic film on the photosensitive material, and the second processing unit is configured to print the printed photosensitive material. An example is a development processing section that performs development processing.

Further, the holding means includes a pair of holding rollers for holding the photosensitive material, and a holder for attaching the holding roller, and the photosensitive material is held by the holding roller from the first processing section to the first holding section. (2) transported to the processing section. Further, in the above-described photosensitive material transport apparatus, it is preferable to provide a detecting means for detecting the length of the photosensitive material.

[0013]

Embodiments of the present invention will be described. FIG. 1 schematically shows an exposure section 1 of a photographic processor and a transport device 3 according to the present invention. The basic configuration of the exposure unit 1 is the same as that shown in FIG.
Endless belt 14 moving along roller 3 is a pair of rollers 14a.
・ It is designed to rotate via 14b ・ 14c,
The photosensitive material 10 is transported from left to right in FIG.
Arrow B direction). Roller pair 14c on the downstream side of exposure unit 1
Consists of a pressing roller 141 and a driving roller 142,
Downstream thereof, a photosensitive material transport device 3 according to the present invention is provided.

In FIG. 1, 15 is a light source, 16 is a mirror tunnel, 17 is a negative mask, 18 is a lens unit, and 19 is a cutter for cutting the photosensitive material 10 sent to the exposure table 13 into a predetermined length. The length of the photosensitive material 10 cut by the cutter 19 is detected by a detector 19a. An upstream side of the cutter 19 is provided with a paper magazine 10a and a pair of transport rollers 10b for sending out the photosensitive material 10 in the paper magazine 10a to the exposure thirteenth side. The transport roller pair 10 is driven by a motor. I try to make it.

Next, the configuration of the photosensitive material conveying device 3 will be described in detail. The transport device 3 includes a lower holding roller 40 and an upper holding roller 41 for sandwiching the photosensitive material 10, a guide member 42 for guiding the photosensitive material 10 between the rollers 40 and 41, and the holding rollers 40 and 41 being rotatable. Roller holding table 4 to which the guide member 42 is fixedly attached.
3, a second roller holding base 44 that rotatably holds the first roller holding base 43 around the axis of the lower holding roller 40,
A torsion coil spring 45 for urging the first roller holder 43 to rotate clockwise in FIG. 1, a rotation restricting plate 46 for preventing the first roller holder 43 from rotating clockwise, and a lower holding roller 40 And a gear 47 mounted coaxially.

The rotation restricting plate 46 is attached to the base plate 61. The rotation restricting plate 46 has a guide portion 46a having an arcuate surface on the upper portion thereof.
Reference numeral 41 is attached to the holder 30 via holding stands 43 and 44. Here, the holding rollers 40 and 41 function as holding means for holding the photosensitive material 10 by pinching.

The aforementioned driving roller 142 is driven by a motor 29, and the driving force of the motor 29 is further lowered from a first gear 38 provided coaxially with the driving roller 142 via a second gear 39 and a gear 47. The power is transmitted to the roller 40. The gear 47 and the lower holding roller 40 are connected via a one-way clutch.

The holder 30 has two upper and lower guide shafts 31.
2 is guided in the direction of arrow X in FIG. The guide shafts 31 and 32 are attached to a guide shaft support 33. Further, guide rails 26 and guide rollers 27 for guiding the holder 30 in the left-right direction and the up-down direction.
28 function as a guide mechanism for transporting the photosensitive material 10 in the horizontal direction and the vertical direction.

The guide rail 26 has upper and lower mounting portions 26a and 26b, a first straight portion 26c, a second straight portion 26e, and a sloped portion 26d.
6d functions as a left-right guide portion in the claims, and the first straight portion 26c functions as a vertical guide portion in the claims. The guide rollers 27 and 28 are rotatably attached to the holder 30 and have inclined portions 26d.
Are arranged obliquely in accordance with the shape of.

The guide shaft support 33 is attached to a holder 50, and the holder 50 is guided by two guide shafts 51 and 52 in the Y direction in FIG.
An endless belt 53 is attached to the side surface 50a of the holder 50, and the holder 50 is driven by a motor 54 in the vertical direction. Here, the motor 54
Functions as a driving unit for driving the holding unit along the guide mechanism.

The endless belt 53 is wound around a pair of upper and lower sprockets 55 and 56. Guide shaft 51.5
2 is attached to the guide shaft support 57. Further, a first sensor 58 and a second sensor 59 for detecting the vertical position of the holder 30 are provided. FIG. 4
As shown in FIG. 7, in order to detect one end of the photosensitive material 10 conveyed into the photosensitive material conveying device 13, the light emitting device 60a
And a third sensor 60 including a light receiver 60b. A pair of rollers 62 for receiving the conveyed photosensitive material 10 and a pair of rollers 63 for guiding the photosensitive material 10 to the developing unit 2 are provided above the photosensitive material transporting device 13.

In FIG. 4, reference numeral 34 denotes a paper guide. FIG. 5 is a control block diagram. The operation of each component of the photographic processor is controlled by a control unit 80 having a microcomputer as a core. The transport control means 81 controls each motor 2 based on the output signals of the sensors 58, 59, 60 and the detector 19a for detecting the length of the photographic photosensitive material described above.
9. The drive of the 54 is controlled. Note that the control unit 80 includes the exposure unit 3
0 and the operation of the development processing unit 12 are also controlled.

Further, in the embodiment shown in the drawing, the conveyance control means 81 controls the photosensitive material 1 detected by the detector 19a.
After one end (tip) in the length direction of the photosensitive material 10 has been transferred to the receiving roller pair 62 based on the length of the photosensitive material 10, while the holding rollers 40 and 41 are being moved toward the exposure unit 1, When the holding rollers 40 and 41 pass a specific position (a position indicated by a two-dot chain line in FIG. 8) on the boundary between the first linear portion 26c and the inclined portion 26d, the rear end of the photosensitive material 10 is moved to the specific position. A determination unit 82 is provided for determining whether or not has passed through the developing unit 2.

When the determination section 82 determines that the rear end of the photosensitive material 10 has finished passing the specific position when the holding rollers 40 and 41 have moved to the specific position, the conveyance is performed. The control means 81 controls the photosensitive material 10
As soon as one end in the length direction is transferred to the pair of receiving rollers 62, the motor 54 is driven and the holding roller 40,
41 toward the exposure unit 1 and the judgment unit 82
If it is determined that the rear end of the photosensitive material 10 has not passed the specific position, the holding rollers 40 and 41 expose the specific position immediately after the photosensitive material 10 has passed the specific position. After the holding rollers 40 and 41 are stopped at the position shown in FIG. 7 for a predetermined time by the transport control means 81 so as to pass toward the section 1, the motor 54 is driven to expose the holding rollers 40 and 41 to light. It is made to move toward the part 1.

Next, the operation of the transport device having the above configuration will be described with reference to the flowchart shown in FIG. As shown in FIG. 1, after the photosensitive material 10 cut for each frame by the cutter 19 is conveyed to the exposure table 13 and the image of the negative film F is exposed, as shown in FIG. When the exposed photosensitive material 10 is conveyed from the exit of the exposure unit 1 to the holding rollers 40 and 41, the photosensitive material 10 is guided by the guide member 42 and conveyed while being nipped by the holding rollers 40 and 41. Is done. (Step 100) When the sensor 60 detects one end of the photosensitive material 10, the driving of the holding roller 40 is stopped. Subsequently, the motor 54 is started, and the holder 30 in which the photosensitive material 10 is held between the holding rollers 40 and 41 is moved toward the development processing unit 2. (Step 101) At this time, in the state of FIG.
Tries to rotate clockwise by the action of the torsion coil spring 45, but the rotation is prevented by the existence of the rotation restricting plate 46, and the holder 30 is moved to the state shown in FIG.
Is released from the inhibition by the rotation restricting plate 46 at the time when the first roller holding base 43 is rotated by the torsion coil spring 45.
Is rotated clockwise by about 90 degrees, whereby the photosensitive material 10 is rotated.
Is also changed from the horizontal state to the vertical state. Due to this change in attitude, the emulsion surface of the photosensitive material 10 is switched from the outside to the inside of the transport path.

On the other hand, when the motor 54 is activated, the holder 30
When the guide rollers 27 and 28 are guided by the second linear portion 26e with the upward movement of the photosensitive material 10, the photosensitive material 10 is transported upward, and as shown in FIG. When the photosensitive material 10 moves to the inclined portion 26d of the rail 26, the conveyance of the photosensitive material 10 in the left-right direction is started. And the guide rollers 27 and 28 are the first
When the photosensitive material 10 comes to the straight portion 26c, the photosensitive material 10 is conveyed upward again.

Then, the completion of raising of the guide rollers 27 and 28 is detected by the first sensor 58 (step 10).
2), the motor 54 stops, and in this state, the photosensitive material 10
Is transferred to the roller pair 62 (step 103). On the other hand, based on the length of the photosensitive material detected by the detector 19, the determination unit 82 of the control means 81 determines that the one end (tip) of the photosensitive material 10 in the length direction is transferred to the receiving roller pair 62 and then transferred. , Holding roller 40,
When the holding rollers 40 and 41 pass a specific position on the boundary between the first linear portion 26c and the inclined portion 26d while moving the 41 toward the exposure unit 1, the rear end of the photosensitive material 10 It is determined whether or not the vehicle has passed the specific position toward the development processing unit 2. This determination is made by calculating the following waiting time (T) by the determination unit 82 of the control unit 81. . (Step 104) That is, the waiting time T is calculated from the following formula.

T = (L-Lh-D) / Vp-D / Ve where VP is the speed of feeding the photosensitive material by the roller pair 62,
e is the moving speed of the holding rollers 40 and 41, L is the total length of the photosensitive material, Lh is the distance from the tip of the photosensitive material 10 held between the holding rollers 40 and 41 to the holding rollers 40 and 41, and D is the first straight line. The position of the holding rollers 40 and 41 after the completion of the ascent in the portion 26c and the inclined portion 2 from the first straight portion 26c.
This is the distance between the positions of the holding rollers 40 and 41 immediately before shifting to 6d.

If the waiting time calculated by the above formula is a positive value, the motor 54 is driven in the reverse direction after waiting for the waiting time corresponding to the value (step 105). The rollers 40 and 41 are lowered (step 106), and accordingly, the photosensitive material 1
Immediately after the other end (rear end) in the length direction of 0 has passed the boundary position (the position shown by the two-dot chain line in FIG. 8) of the first linear portion 26c with the inclined portion 26d, this position is
41 passes and returns to the exposure unit 1.

On the other hand, if the calculated waiting time is a negative value, the motor 54 is immediately driven in the reverse direction to lower the holding rollers 40 and 41. The holding roller 4
The return of 0 and 41 to the initial position is detected by the second sensor 59. (Step 107) According to the photosensitive material transport apparatus described above, the photosensitive material 1
After passing the front end of “0” to the entrance of the developing unit, the holding rollers 40 and 41 are moved toward the exposure unit 1 to shorten the time until the holding rollers 40 and 41 return to the exposure unit 1. And the next photosensitive material 10 processed in the exposure unit 1
Can be transported quickly.

In the above embodiment, one end in the length direction of the photosensitive material 10 is received by the receiving roller pair 62 based on the length of the photosensitive material 10 detected by the detector 19a by the determination unit 82 of the transport control means 81. When the holding rollers 40 and 41 are moved toward the exposure unit 1 after being transferred to the exposure unit 1, the holding rollers 40 and 41
When passing through the specific position of the boundary with the inclined portion 26d in FIG. 3C, it is determined whether or not the rear end of the photosensitive material 10 has finished passing through the specific position toward the development processing unit 2 and is finished. When it is determined that the holding rollers 40 and 41 pass through the specific position immediately after the photosensitive material 10 passes through the specific position, the holding rollers 40 and 41 pass through the specific position.
After stopping at the position shown in FIG. 7 for a predetermined time, the motor 54 is driven to move the holding rollers 40 and 41 toward the exposure unit 1, but the invention is not limited to this. For example, when one lengthwise end of the photosensitive material 10 is transferred to the receiving roller pair 62, the holding roller 4
0, 41 is moved to just before the specific position, and a predetermined time is stopped at such a position. Immediately after the rear end of the photosensitive material 10 passes through the specific position, the holding rollers 40, 41 are again moved.
May be moved toward the exposure unit 1.

In the above embodiment, the length of the photosensitive material 10 cut by the cutter 19 is detected by the detector 19a. However, the present invention is not limited to this. The rotation speed may be detected from the pulse signal of the motor that drives the transport roller pair 10b, and the length of the photosensitive material 10 may be detected based on the rotation speed of the motor.

[0033]

According to the photosensitive material transport apparatus of the first aspect, the time from the delivery of the photosensitive material to the second processing unit to the return of the holding unit to the first processing unit can be shortened.
Since the next photosensitive material processed in the first processing section can be transported quickly, the processing capacity of the photographic processor can be increased without increasing the transport speed of the transport device.

The first processing section may be an exposure section for printing an image of a photographic film on the photosensitive material, and the second processing section may be a development processing section for developing the printed photosensitive material. Can speedily transport the photosensitive material from the exposure unit to the development processing unit. In addition, the holding means,
A pair of holding rollers for holding the photosensitive material, and a holder for mounting the holding roller, wherein the photosensitive material is conveyed from the first processing unit to the second processing unit while being held by the holding rollers. By doing so, in addition to the effects described above, the photosensitive material can be smoothly and stably transported.

[Brief description of the drawings]

FIG. 1 is a schematic explanatory view showing an exposure section and a photosensitive material transport device of a photographic processor.

FIG. 2 is a schematic front view of a photosensitive material conveying device.

FIG. 3 is a perspective view of a main part of the photosensitive material conveying device.

FIG. 4 is a sectional view of a main part of the photosensitive material conveying device.

FIG. 5 is a block diagram illustrating a configuration of a photo processor.

FIG. 6 is a schematic front view showing an operation state of the photosensitive material conveying device.

FIG. 7 is a schematic front view showing an operation state of the photosensitive material conveying device.

FIG. 8 is an explanatory diagram of a main part of the photosensitive material transport device.

FIG. 9 is a flowchart showing the operation of the photosensitive material transport device.

FIG. 10 is a schematic explanatory view of a main part of a conventional photographic processor.

FIG. 11 is a schematic plan view of a photographic processor.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 1st processing part (exposure part) 2 2nd processing part (development processing part) 40 * 41 Holding roller (holding means) 26 Guide rail (guide mechanism) 54 Motor (driving means) 81 Control means

Claims (5)

[Claims] An outlet of the photosensitive material in the first processing section;
In a photographic processor shifted vertically and horizontally with respect to the entrance of the photosensitive material in the processing section, a photosensitive material for transporting the photosensitive material processed in the first processing section to a second processing section along a transport path. A transport device, comprising: holding means for holding a photosensitive material; a left-right guide part for guiding the holding means in the left-right direction from an outlet of the first processing unit; and a position guided in the left-right direction by the left-right guide part. , A guide mechanism having a vertical guide portion for vertically guiding the holding means toward the entrance of the second processing unit, a driving means for moving the holding means along the guide mechanism, and the driving means Control means for controlling the driving of the photosensitive material, the control means, after the lengthwise one end of the photosensitive material is transferred to the second processing unit, in the middle of moving the holding means toward the first processing unit side, The Has the determination portion the rear end of the photosensitive material to determine whether the finished passing toward the specific position in the second processing unit when the lifting means through a particular position,
When the holding unit has moved to the specific position, if the determination unit determines that the rear end of the photosensitive material has passed the specific position, the holding unit is directly transferred to the first processing unit. If the determination unit determines that the rear end of the photosensitive material has not passed the specific position, the system waits for the photosensitive material to pass the specific position, and moves the holding unit. A photosensitive material transport device for a photographic processor, wherein the driving means is controlled to move the photosensitive material toward a first processing unit. 2. The apparatus according to claim 1, wherein the specific position is a boundary between the vertical guide section and the horizontal guide section. 3. The processing section according to claim 1, wherein the first processing section is an exposure section for printing a film image on a photosensitive material, and the second processing section is a development processing section for developing the printed photosensitive material. 3. The photosensitive material conveying device of the photographic processor according to 2. 4. A holding means comprising a pair of holding rollers for holding a photosensitive material, and a holder for mounting the holding roller, wherein the photosensitive material is held by the first processing unit while being held by the holding roller. 4. A photosensitive material transport device for a photographic processor according to claim 1, wherein the photosensitive material transport device is transported to a two-processing unit. 5. A photosensitive material transport device for a photographic processor according to claim 1, further comprising a detecting means for detecting the length of the photosensitive material.