JP2833690B2 - Photosensitive material processing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photographic material processing apparatus (hereinafter referred to as a photographic processing apparatus). More specifically, the present invention relates to a photographic processing apparatus capable of reliably guiding a photographic photosensitive material (hereinafter, referred to as photographic paper) conveyed to a developing section of the photographic processing apparatus.

[0002]

2. Description of the Related Art As shown in FIG. 2, a conventional photographic processing apparatus draws out a photographic paper S wound in a roll on a magazine 101, and then uses an exposure mechanism 102 to convert an image of a developed photographic film F. A printing unit 103 for printing on the photographic paper S, a developing unit 104 for passing the photographic paper S printed by the printing unit 103 through various processing layers and performing a developing process, and a developing process by the developing unit 104 Drying unit 105 for drying the printed photographic paper S, and drying unit 1
And a print cut unit 106 for separating the photographic print P of the photographic paper S dried by the use of the image printing unit 05 for each image. The developing unit 104 and the drying unit 105 are provided with a submerged rack unit 107 and a drying rack unit 108 for guiding and transporting the printing paper S. Also,
As shown in FIG. 3, each of the racks 107 and 108 has a pair of rollers 109 for transporting the printing paper S,
The distance between the pair of guides 110 for guiding the both width side edges of the printing paper S is set to be a feed screw shaft 1 in which opposite screws are formed.
There is provided a guide width changing mechanism 112 which can be adjusted by the control unit 11.

The transport of the photographic paper S in the developing section 104 is activated by a photographic paper detection sensor using an optical sensor or a limit switch immediately before the photographic paper S enters the submerged rack 107, and each processing tank is operated. After being sent out to the drying unit 105 via the inside and being separated by the print cutting unit 106 from the last photographic print P, the conveyance drive is stopped. In addition, when the transport drive is to be operated, for example, when checking the transport mechanism, the operation is forcibly performed by operating a key on the control panel. Further, the submerged rack unit 107 and the drying rack unit 108
When the maintenance of the guide is performed in the change of the width of, the forcible conveyance drive is performed.

[0004]

In such a photo processing apparatus, when photographic paper S is jammed in the rack,
Remove the rack part, check the jammed portion of the photographic paper S,
Remove jammed photographic paper. However, since several racks are usually provided, the photographic paper S may be left behind in the racks. However, there is no paper (printing paper) detecting function in the submerged rack and the drying rack in the conventional photographic processing apparatus. For this reason, if the width is changed in the direction to reduce the guide width without knowing the state of the photographic paper remaining in the rack portion, in the case of a manual width changing mechanism, the presence of the photographic paper can be determined by the heavy knobs. However, since it is not known when the automatic width changing mechanism is used, the width changing mechanism is locked by the remaining photographic paper, and there is a problem that a secondary trouble such as breakage of peripheral parts (eg, tooth skipping of the submerged rack) occurs. .

Further, if the width is changed in the direction in which the width of the guide is increased, the photographic paper will come off the rack.

SUMMARY OF THE INVENTION In view of the above circumstances, the present invention provides a photographic processing apparatus capable of reliably discharging photographic paper remaining in a rack section (hereinafter referred to as "initial drive") and performing a stable width changing operation. The purpose is to:

[0007]

According to the photographic processing apparatus of the present invention, the distance between a conveying mechanism for conveying a photographic light-sensitive material and a pair of guides for guiding both side edges of the photographic light-sensitive material can be adjusted. A photosensitive material processing apparatus comprising a rack provided with a guide width changing mechanism, wherein an initial drive means for driving the transport mechanism for a predetermined time, and And limiting means for stopping the operation of the guide width changing mechanism.

[0008]

According to the photographic processing apparatus of the present invention, when the power is turned on, the operation of the guide width changing mechanism is stopped by the restricting means, and then the initial drive of the transport mechanism is performed for a certain period.
For this reason, the width of the guide is changed after the photographic paper remaining in the rack portion, for example, the submerged rack portion or the drying rack portion, is reliably sent out, so that the photographic paper does not damage the components.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A photographic processing apparatus according to the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a schematic perspective view showing one embodiment of a photographic processing apparatus according to the present invention.

A photographic processing apparatus according to this embodiment includes a developing section for passing a photographic paper, on which an image recorded on a developed photographic film is printed, through various processing tanks, and performing a developing process. And a drying unit for drying the photographic paper developed by the unit.

As shown in FIG. 1, a submerged rack unit 1 and a drying rack unit 21 for guiding and transporting the photographic paper S are installed in each processing tank of the developing unit and the drying unit. I have.

A guide width changing means 3 provided between a pair of upright side plates 2a and 2b is connected to the submerged rack portion 1 via a first transmission shaft 4 to the guide width changing means 3. A guide width changing mechanism A including the first slide connecting means 5 is provided.

The guide width changing means 3 includes a pair of side plates 2.
a feed screw shaft 7 erected on both sides a and 2b and having oppositely oriented male screws 6a and 6b on both sides, and nuts 8a and 8b screwed to the male screws 6a and 6b of the feed screw shaft 7
And a pair of guides 9a and 9b each having a U-shaped cross section and attached to the nuts 8a and 8b.
By rotating the feed screw shaft 7 forward and backward,
The distance (guide width) between the pair of guides 9a and 9b can be adjusted so as to match the width of the photographic paper S by increasing or decreasing the interval (guide width).

The first slide connecting means 5 comprises a rack gear 10.

The first transmission shaft 4 is rotatably provided in the submerged rack portion 1 and has a bevel gear 12 formed at a lower portion thereof for meshing with a bevel gear 11 formed on the feed screw shaft 7. A pinion gear 13 meshing with the rack gear 10 is formed on the upper part. The horizontal movement of the first slide connecting means 5 can be transmitted to the guide width changing means 3 as a rotational movement by the first transmission shaft 4.

On the other hand, a guide width changing means 3 similar to the submerged rack section 1 and a second transmission shaft 24 connected to the guide width changing means 3 are connected to the drying rack section 21.
Guide width changing mechanism B including the slide connecting means 25
Is provided.

The second slide connecting means 25 includes a slide rack gear 29 having a convex piece 27 on one side and teeth 28 formed on the other side, a pinion gear 30 meshing with the teeth 28 at one end, and a bevel gear at the other end. And a rotating shaft 32 formed with the same.

The second transmission shaft 24 is rotatably provided in the drying rack 21 and has a bevel gear 33 formed at a lower portion thereof for meshing with the bevel gear 11 formed on the feed screw shaft 7. A bevel gear 34 that meshes with the bevel gear 31 of the rotating shaft 32 is formed at an upper part.

A pair of guides 9a, 9b for guiding both side edges of the printing paper S between the guide width changing mechanisms A, B in the developing section and the drying section. Is provided with a guide width synchronization mechanism C for synchronizing the width movement of the guide.

The guide width synchronization mechanism C is connected to the first slide connection means 5 and the second slide connection means 25 in the guide width change mechanisms A and B, respectively.

The guide width synchronizing mechanism C includes a guide width synchronizing means 43 and a driving means 44 for driving the means 43.
It is composed of

The guide width synchronizing means 43 includes a pinion shaft 4 on which two pinion gears 45a and 45b are formed.
5, and width adjusting rack gears 46 and 47 meshed with the pinion gears 45a and 45b, respectively.

The width adjusting rack gear 46 is connected to a slide plate 49 having a rectangular notch 48 into which the rack gear 10 is fitted.
For example, it is slidably guided and supported by a member that regulates the guide width. Further, a stopper pin 51 for restricting the movement of the rack gear 46 outside the allowable range is fitted in the long groove 50 formed at the upper end of the rack gear 46. On the other hand, the rack gear 47 is formed with a concave portion 52 for inserting the convex piece 27 of the slide rack gear 29 in the second slide connecting means 25, and is slidably guided and supported by a stationary member as described above. ing.

The driving means 44 includes a width changing motor 53.
A friction unit 54 for preventing damage to each component due to overload, a detection plate 56a and a sensor 56 connected to an output shaft 55 having the pinion shaft 45 extended.
b and the friction unit 5
4 and a worm 57 and a worm wheel 58 connecting the output shaft 55. The friction unit 54 prevents the parts from being damaged by an overload when the rack gears 46 and 47 try to move out of the allowable range due to a detection error of the detector 56 or the like.

Therefore, when the distance between the pair of guides 9a, 9b of the guide width changing means A, B in the submerged rack portion 1 and the drying rack portion 21 is increased to a predetermined size,
By the rotation of the width changing motor 53, the output shaft 55 and the pinion shaft 45 are rotated in the direction a shown in FIG. Thus, the rotation of the motor 53 is controlled by the pinion gear 45.
The linear motion of the slide plate 49 and the rack gear 10 is changed by the a and the rack gear 46. In the submerged rack unit 1, this linear motion is converted into a rotary motion again by the first transmission shaft 4, which drives the feed screw shaft 7 to rotate, and moves the pair of guides 9a and 9b in the direction b shown in FIG. spread.

On the other hand, also in the drying rack section 21, by the rotation of the width changing motor 53, the rotational movement of the motor 53 is changed to the linear movement of the second slide connecting means 25 by the pinion gear 45b and the rack gear 47. This linear motion is converted into a rotary motion again by the second transmission shaft 24, which drives the feed screw shaft 7 to rotate, and the pair of guides 9
a, 9b are spread in the direction b shown in FIG. As a result, the printing paper S conveyed from the submerged rack unit 1 is surely transferred and guided by the guides 9a and 9b of the drying rack unit 21.

The photographic processing apparatus according to the present invention comprises an initial drive means 61 for driving a transport mechanism 60 for transporting the photographic paper S for a predetermined time, and the guide width changing mechanism while the initial drive means 61 is being driven. A limiting means 62 for stopping the operations of A and B is provided.

The transport mechanism 60 includes a pair of side plates 2a, 2a
b, a pair of rollers 63a, 63b
And a sprocket 6 provided at the shaft end of the roller 63a.
4 and a chain 65 wound around the sprocket 64
It is composed of The chain 65 is connected to a drive motor (not shown), and the photographic paper S sandwiched between the pair of rollers 63a and 63b is fed by the drive motor along the pair of guides 9a and 9b. In the present embodiment, the transport mechanism 60 using the pair of rollers 63a and 63b is employed. However, the present invention is not limited to this, and can be applied to a transport mechanism in which the rollers are arranged in a staggered manner.

As the initial drive means 61, a timer circuit which is connected to the drive motor and drives the drive motor for a predetermined time when the power is turned on can be used.

In order to turn off the power of the width changing motor 53 of the driving means 44, an electromagnetic relay or an electronic switch operated by an output signal of the initial driving timer circuit is used as the limiting means 62. it can.

When a CPU is used to control the photographic processing apparatus, the software incorporated in the CPU is partially modified, and when a power-on signal is input to the CPU when the power is turned on, the drive is started. The drive signal of the motor may be output for a predetermined period, and a prohibition signal for prohibiting the drive of the width changing motor may be output.

In the photographic processing apparatus of the present invention,
The guide width synchronizing mechanism C and the guide width changing mechanism A in the submerged rack portion 1 are formed to be concave and convex by the rectangular notch 48 of the slide plate 49 and the rack gear 10. Similarly, the guide width synchronizing mechanism C and the guide width changing mechanism B in the drying rack unit 21 are connected to the recess 52 of the rack gear 47 and the second
The protrusions 27 of the slide connection means 25 are connected in an uneven manner. Therefore, the submerged rack unit 1 and the drying rack unit 21 can be connected to the guide width synchronizing mechanism C provided in advance simply by loading them into the developing unit and the drying unit of the apparatus, respectively. The width can be accurately synchronized with the set value of the photographic paper being conveyed. Further, after the loading, the submerged rack unit 1 or the drying rack unit 21 can be easily removed for cleaning and inspection work, which is very convenient.

[0034]

As described above, according to the photographic processing apparatus of the present invention, even if photographic paper remains in the rack after troubles such as clogging, the photographic paper is sent out when the power is turned on. There is no secondary trouble due to damage of parts at the time of change.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing one embodiment of a photographic processing apparatus of the present invention.

FIG. 2 is an explanatory diagram illustrating an example of a photographic processing device.

FIG. 3 is an explanatory diagram illustrating a rack unit of the photo processing device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Submerged rack part 9a, 9b Guide 21 Drying rack part 60 Transport mechanism 61 Initial drive means 62 Limiting means A, B Guide width change mechanism S Photographic paper

Claims (1)

(57) [Claims] 1. A rack section provided with a transport mechanism for transporting a photographic photosensitive material and a guide width changing mechanism capable of adjusting a distance between a pair of guides for guiding both width side edges of the photographic photosensitive material. A photographic light-sensitive material processing apparatus comprising: an initial drive means for driving the transport mechanism for a predetermined time; and a restriction for stopping the operation of the guide width changing mechanism while the initial drive means is driven. Means for processing a photographic light-sensitive material, comprising: