JPH11338058A - Photographic paper rotating device and photograph printing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a photographic paper rotating device and a photograph printing device easily performing attaching operation at an exposure part in the photographic paper rotating device for performing exposure by carrying photographic paper previously cut to specified size to the exposure part, turning it nearly orthogonally to a carrying direction without adjustment. SOLUTION: The device 11 is equipped with a suction guide shaft 36 for carrying the photographic paper cut to the specified size to the exposure part along the carrying surface of a carrying means, sucking and holding the photographic paper by a suction pad 8 after stopping, and turning it nearly orthogonally to the carrying direction, and is equipped with a pair of guide blocks 31 and 32 provided on a base 30, an up-and-down base 33 for making a stepping motor 34 freely ascend/descend, and a control unit 100 making the guide shaft 36 ascend/descend by transmitting motive power through a 1st one- way clutch 41 when the motor 34 is driven in a normal direction and turning it by transmitting the motive power through a 2nd one-way clutch 37 when the motor 34 is driven in a reverse direction, and also driving and controlling it.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photographic paper turning apparatus and a photographic printing apparatus. Photographic paper used in a photographic printing / developing device configured to be rotated at right angles, rotated in the transport direction after exposure, and then sequentially transported to a processing tank storing a predetermined processing liquid, and then discharged to the outside after drying. The present invention relates to a turning device and a photographic printing device.

[0002]

2. Description of the Related Art Conventionally, a processing tank containing a processing liquid called a processor for developing, bleaching, and washing after exposure and printing on an emulsion surface of a photographic paper which has been cut into a predetermined size after completion of a photograph. The applicant of the present invention has put into practical use various types of photographic printing and developing apparatuses which are configured to sequentially pass through the inside and then discharge after drying.

As a photographic printing / developing apparatus of the type for cutting into a predetermined size as described above, for example, US Pat.
No. 07,114 discloses a photographic printing and developing apparatus. In the present disclosure, a continuous roll paper-like photographic paper built by blocking light in a paper magazine is cut into a desired cut size in advance by a cutter unit,
Then, the photographic paper is conveyed to the exposure printing unit with the emulsion side up, exposed and baked to the desired size by the film set in the scanner, and then conveyed to the downstream side for processing for development, bleaching, and water washing. There has been proposed a configuration in which a liquid is sequentially conveyed through a processing tank containing a liquid, then dried and discharged to the outside. When the photographic paper needs to be rotated in the exposure unit when exposing to a desired size, the apparatus rotates the photographic paper 90 degrees and then performs exposure (printing), and a negative or positive function. It has a function of developing a film integrally.

[0004] A turning device for performing the exposure after turning the photographic paper 90 degrees as described above will be briefly described based on the schematic explanatory diagram of FIG. In this drawing, after a roll-shaped photographic paper housed in a paper magazine is cut into a predetermined size by a cutter unit, an exposure printing table 105 provided in a dark box to be conveyed from either direction of the double arrow. The negative or positive film is sequentially fed to the scanner provided on the dark box by the suction operation and the conveyance operation by the conveyance belt 112, and the optical system including the zoom lens or the like is automatically or manually adjusted to be desired. Is formed on a photographic paper and exposed (printed). When the photographic paper is turned at the time of this exposure, the turning device 1 provided substantially at the center of the exposure printing table 105 is used.
It is configured to temporarily stop suction on the eleven suction pads 108, rotate around a right angle, and perform exposure.

When the turning device 111 used in this manner is fixed to the exposure printing table 105, it is necessary to fix the suction surface of the suction pad 108 to be substantially at the same level as the surface of the table 105. That is, if the suction pad 108 is fixed in a state in which the suction pad 108 protrudes upward by the distance A1 from the surface of the table 105 as shown in the drawing, the suction pad 108 collides with the leading edge surface of the paper.

[0006]

In order to avoid such a collision, if the suction pad 108 is fixed by lowering the surface of the table 105 by a distance A2 as shown in FIG.
Collision can be avoided, but since a gap is created between the suction surface of the photographic paper and the suction surface of the suction pad, negative pressure leakage for suction cannot be prevented, and Suction holding cannot be performed.

Therefore, conventionally, the height of the suction pad 108 is adjusted for a considerable time so that the suction surface of the suction pad 108 is at the same level as the surface of the table 105, and then the table is fixed to the table. However, since the suction pad 108 is made of rubber or the like, it is possible to secure the initial suction force due to wear or the like, but in this case, there is a problem that the height must be adjusted again.

Therefore, the entire turning device 111 provided with the conventional suction pad 108 which performs only turning is constructed so as to be driven up and down, and is positioned at a distance A2 in FIG.
, The suction pad 108 is kept on standby, and after the paper is conveyed, the suction pad 108 is lifted to a position above the distance A1 to perform suction, and after turning, the suction is released, and the suction pad 108 is again moved to the position of the distance A2. It is conceivable to configure the suction pad 108 to wait. However, such a mechanism that performs both the turning operation and the raising and lowering operation is considerably complicated, which leads to an increase in the number of components, and of course the control is also complicated.

Accordingly, the present invention has been made in view of the above-mentioned problems, and conveys a photographic paper, which has been cut in advance to a predetermined size, to an exposure unit, turns the photographic paper at a right angle to the conveyance direction, and performs exposure. Mounting work in the exposure section of the photographic paper turning device can be easily performed without adjustment,
In addition, an object of the present invention is to provide a photographic paper turning apparatus in which the holding and turning operation of the photographic paper can be reliably performed by using as few components as possible and the control is simplified.

[0010]

Means for Solving the Problems The above-mentioned problems are solved,
In order to achieve the object, according to the present invention, a photographic paper cut to a predetermined size is transported to a predetermined position along a transport surface of a transport unit, and after stopping, the photographic paper is sucked and held by a suction unit in a transport direction. A photographic paper turning device provided with a suction member for turning at a right angle to the photographic paper and stopping and holding the photographic paper turning device, wherein the at least one pair of guide members provided at the base of the photographic paper turning device are driven in forward and reverse directions An elevating unit for allowing one motor unit to be raised and lowered by the guide member; and a power transmission to the elevating unit via a first one-way clutch when the motor unit is driven in a forward direction. A lifting / lowering turning means for raising / lowering the suction member and transmitting power to a turning portion via a second one-way clutch to turn the suction member when the motor means is driven in a reverse direction. Specially It is set to.

[0011]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

First, FIG. 1 is an external perspective view showing a main part of the entire structure of a photographic printing and developing apparatus 1 in which all covers provided detachably with respect to a housing 2 are removed.
The left paper magazine left storage unit on which options are set is shown as being added, and the output unit of the completed photo is omitted. The apparatus 1 is designed to be as flat as possible in the front and back directions of the paper so as to minimize the occupied area after installation, and to allow easy access to main parts from the front.

As a result, even when the apparatus 1 is installed so as to be very close to the wall surface, especially in a small shop in Japan, it is necessary to replace or replenish the processing liquid, which is a routine work. In addition, the apparatus can be used easily, and access to the back of the apparatus 1 is made unnecessary.

[0014] The left storage section of the paper magazine is
It is attached detachably from the side of the device 1,
As shown in the drawing, two paper magazines 3 can be simultaneously loaded so that they can be added together with the cutter unit 4. In this way, when the usage frequency becomes higher in demand, the paper magazine 3 can be added as needed, and the photo printing development delivered and installed with only the right paper magazine right storage unit is provided. Device 1
First, it is installed in laboratories and photo studios, and the left storage section of the paper magazine can be added as needed based on the frequency of use and the amount of photographic paper consumed after the introduction.

On the other hand, photographic paper (hereinafter referred to as paper) in which a color emulsion is preliminarily coated on the photographic printing surface is wound as a continuous long roll paper having a predetermined width (for example, 89 mm width), and The light is completely shut off, and is rotatable in the paper magazine 3. The paper magazine 3 is formed in a symmetrical shape as shown in the drawing so that the left and right paper magazines can be used in common for the left storage section and the right storage section for the paper magazine. A handle (not shown) for taking out and loading is provided on each of the wall surfaces. Further, an automatic opening / closing mechanism of an opening for discharging the built-in roll paper P to the outside of the magazine 3 in the direction of the arrow is provided, and the magazine is inserted into either the right storage section of the paper magazine or the left storage section of the paper magazine. Even in such a case, the components are automatically opened and closed in the same manner, so that the components are shared and the usability is improved.

A cutter unit 4 provided in close proximity to the paper magazine 3 is for cutting the continuously transported paper P into a desired size before exposure, and the cutter unit 4 performs predetermined cutting. The paper P cut into the size is first conveyed by the suction operation and the conveyance operation by the conveyance belt 12 on the exposure printing table 5 provided in the dark box 7, temporarily stopped at the exposure position and stopped for the exposure. Is ready, the film F is sequentially fed to the scanner 6, and the optical system 13 including a zoom lens or the like is adjusted automatically or manually to form an image of a desired size on the paper P and print. It is configured to attach. Further, a photographic paper turning device 11 of the present invention is provided substantially at the center of the exposure printing table 5, and is configured to be able to turn 90 degrees in the direction of the arrow after sucking the paper P by the suction pad 8.

More specifically, the paper P cut by the cutter unit 4 is sucked toward the table 5 without any gap by the suction action of a large number of holes formed on the table 5.
After the exposure, the paper P is transported toward the transport unit 10, the transport path selecting mechanism 9 is operated, and the paper P is transported toward the transport unit 10 disposed above.
After it is determined whether or not the sheet is the large format PL, the sheet is conveyed downstream. Here, the paper size is small (127 ×
In the case of (89 mm), the wafers are transported while being divided into right and left, and transported in the processing tank 16 in two rows. Thus, the processing speed can be increased by carrying the paper in two rows. Also, panoramic photos (254 x 89
mm), the paper can be transported in two rows in the same manner.

On the other hand, when it is desired to perform exposure printing so as to be perpendicular to the transport direction of the film loaded in the film scanner 6, the suction pad 8 is driven to rotate 90 degrees, so that the same type of paper is driven. While set
It is configured to be able to process all of a plurality of different sizes.

On the other hand, a processing tank 16 for sequentially performing development, bleaching, and washing of the paper after baking is provided stepwise as shown in FIG. After drying by reversing the direction by a reversing roll (not shown) provided in and feeding the drying unit,
The device is configured to be finally discharged to the outside of the device 1.

FIG. 2 is an external perspective view of the photographic paper turning device 11 arranged as described above, and is partially cut away. FIG. 3 is an operation explanatory diagram of FIG. 2 and 3, the device 11 is designed to be compact and to reduce the number of parts as much as possible. However, it is not limited to the configuration shown in the drawing, and there are various configurations defined in the claims. Needless to say.

In the drawing, the photographic printing paper turning device 11 is provided with a tab 30c for fixing it with a screw at a predetermined position with respect to the table 5, and as shown in the figure, the side wall surfaces 30a and 30b which are bent from the bottom are integrated. Base 3 provided
0 is used as a base, and a guide block 31 and a guide block 32, which are a pair of left and right guide members, are fixed on the side wall. Each of these guide blocks 31 and 32 is formed with a through hole, and the guide shaft 3 shown by a broken line is formed.
5 and a suction guide shaft 3 having a suction pad 8 fixed to the tip.
6 is configured to be guided vertically. The guide shaft 35 guided in this manner is fixed to the upper and lower bases 33 fixing the stepping motor 34 of the double shaft type, while the suction guide shaft 36 is rotatable with respect to the upper and lower bases 33 and upward. It is supported in a locked state when moving.

The boss 4 is connected to a shaft end below the stepping motor 34 via a first one-way clutch 41 shown by a broken line.
2 is fixed, and a radial shaft 43 is fixed in the radial direction of the boss 42. This radial shaft 4
3, a cam roller 44 as a cam follower is rotatably provided via a third one-way clutch 46 shown by a broken line. An O-ring 45 made of rubber is provided on the outer peripheral surface of the cam roller 44 to ensure rotation of the cam roller 44. Here, the one-way clutch is a so-called "one-way clutch" with a common name,
In order to transmit power in one direction but not in the other direction, a number of wedge-shaped members are provided in the space between the inner race and the outer race in place of the ball, and a shaft body It is a part that can set the power transmission direction arbitrarily by reversing the front and back when loading into the. Therefore, in the scope of the claims, "when the motor means is driven in the forward direction, power is transmitted to the lifting / lowering portion via the first one-way clutch", but it is optional depending on the rotation direction of the motor means. It is needless to say that the forward direction is the clockwise direction and the reverse direction is not the counterclockwise direction but can be set arbitrarily.

A cam member 47 having a cam surface which is gradually raised and flattened via an inclined surface is fixed on the bottom surface of the base 30 as shown in FIG. The upper and lower bases 33 are raised and lowered by the cam rollers 44 passing through the cam surface while rotating. The boss 42 has a base 3
The actuator 48 passing through the optical axis of the photo interrupter 50 fixed to 0 is fixed, and enables position detection when the motor 34 is initialized.

On the other hand, a toothed pulley 38 is fixed to a shaft end above the stepping motor 34 via a second one-way clutch 37 shown by a broken line, and is fixed to the suction guide shaft 36 described above. The toothed endless belt 39 is stretched between the pulley 40 and the toothed pulley 40 so that power is transmitted when the motor 34 is energized. The suction guide shaft 36 has a guide block 31.
A flange member 52 supporting a compression coil spring 51 provided so as to be in a compressed state is fixed therebetween. By urging the suction guide shaft 36 downward, the weight of the motor 32 is increased. The cam roller 44 is configured to obtain an urging force for surely bringing the cam roller 44 into contact with the cam surface. Further, a through hole communicating with the suction hole 8a of the suction pad 8 is formed in the suction guide shaft 36 in the longitudinal direction. This through hole is connected to the negative pressure tube 55, and is connected to the on-off valve 56 and the vacuum pump 57.

The above-described motor 34, on-off valve 56, photo-interrupter 50 and other sensors for detecting the paper transport position are connected to a control unit 100 to which a ROM and a RAM (not shown) are connected. It is controlled based on the control signal.

FIG. 4 is a flow chart showing an example of control of the photographic paper turning apparatus constructed as described above. The operation will be described with reference to FIG. 3. In step S1, the paper P is conveyed in the direction of arrow P1. To stop on the suction pad 8. Thereafter, in step S2, when the motor 34 is driven in the direction of arrow R1 (forward rotation) shown by the solid line, the boss 42 is driven in the direction of arrow R2, and the cam roller 44 runs on the cam surface while rotating in the direction of arrow R3. This raises the upper and lower bases 33 in the direction of arrow D1. At this time, the suction guide shaft 36 is also lifted at the same time, so that the paper is lifted slightly upward. At this time, power is not transmitted to the pulley 38 by the action of the first one-way clutch 37.

Next, the process proceeds to step S3, where the on-off valve 56 is turned on to suck the paper.

Next, in step S4, when the motor 34 is driven in the direction of arrow B1 (reverse rotation) shown by the broken line, power is transmitted to the pulley 40, and the suction pad 8 is moved by the broken arrow B2.
Is rotated in the direction to rotate the paper. At this time,
The cam roller 44 is prevented from moving by the action of the built-in third one-way clutch 46.

Next, in step S5, the motor 34
Is rotated forward again in the direction of the arrow R1, and the cam roller 44 moves to a lower position on the cam surface, so that the whole moves downward. As a result, the suction pad 8 moves downward while sucking the purper.

Thereafter, in step S6, the on-off valve 56 is turned off to release the suction, and the paper slightly deformed by the suction is completely flattened. Then, the process proceeds to step S7 to perform exposure. As described above, the exposure after the rotation is completed, and the sheet is conveyed toward the above-described conveying section 10 in step S8.

As described above, the suction pad 8 can be made to stand by at a position below the transport surface, and the mechanism for performing both the turning operation and the elevating operation can be simplified. Also, the control is only forward / reverse rotation control of the motor.

FIGS. 5 (a) and 5 (b) are front views for explaining the operation. The same reference numerals are given to the components already described, and the description will be omitted. The suction pad 8 is fixed so that the suction pad 8 is located at a distance A below the conveying surface of the table 5. Further, in steps S2 to S4 in FIG. 4, the paper P is positioned slightly above the surface of the table 5 as shown in FIG. At the time of turning, the table surface is not rubbed so that no friction load is generated.

[0033]

As described above, according to the present invention,
Convey photographic paper pre-cut to a predetermined size to the exposure unit,
The photographic paper turning device for turning the paper at a right angle to the transport direction can be easily mounted in the exposure section of the photographic paper turning device without adjustment without adjustment, and the suction holding and turning operation of the photographic paper is performed with as few components as possible. And a photographic printing apparatus in which the control is simplified and the control is simplified.

[0034]

[Brief description of the drawings]

FIG. 1 is a view illustrating a main part of the entire configuration of a photoprinting and developing apparatus 1 with a cover which is partially detachably provided to a housing 2 removed, and a left storage part of a paper magazine set as an option. It is the front view which showed a mode that it expanded.

FIG. 2 is an external perspective view of the photographic paper turning device 11 of FIG.

FIG. 3 is a perspective view showing the operation of the photographic paper turning device 11 of FIG. 2;

FIG. 4 is a control flowchart for explaining the operation of the photographic paper turning device 11;

FIG. 5 is a front view for explaining the operation of the photographic paper turning device 11;

FIG. 6 is a front view for explaining the operation of the conventional photographic paper turning device 111.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Photo printing device 8 Suction pad 11 Printing paper turning device 30 Base (base) 31 Guide block (guide member) 32 Guide block (guide member) 33 Vertical base 34 Stepping motor (motor means) 36 Suction guide shaft (suction member) 37 Second one-way clutch 38 Toothed pulley 39 Endless belt 40 Toothed pulley 41 First one-way clutch 42 Boss 43 Radial shaft 44 Cam roller 56 Third one-way clutch 56 On-off valve 100 Control unit

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[Procedure amendment]

[Submission date] June 22, 1999

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

Claims (4)

[Claims] 1. A printing paper cut to a predetermined size is conveyed to a predetermined position along a conveying surface of a conveying means, and after stopping, the photographic paper is sucked and held by a suction means and turned substantially at right angles to the conveying direction. A photographic paper turning device provided with a suction member for stopping and holding, wherein at least a pair of guide members provided at a base of the photographic paper turning device, and one motor means driven in forward and reverse directions, An elevating unit for allowing the elevating unit to move up and down by a guide member; and when the motor means is driven in a forward direction, power is transmitted to the elevating unit via a first one-way clutch to raise and lower the suction member. Photographic paper turning means, comprising: elevating and lowering turning means for transmitting power to a turning portion via a second one-way clutch to turn the suction member when the motor means is driven in the reverse direction. apparatus. 2. The suction member is guided by a guide hole provided in one of the guide members so as to be able to move up and down and turn freely, and the lift unit has a cam surface and is fixed to the base. And a cam roller rotatably provided around a shaft provided in a radial direction from one end of an output shaft of the motor means, and rotated by following the cam surface. 2. The printing method according to claim 1, further comprising a pulley fixed to the other end, a pulley fixed to the suction member, and a power transmission endless belt stretched between the pulleys. Paper turning device. 3. The photographic paper turning device according to claim 2, further comprising a third one-way clutch that permits rotation of the cam roller only when the cam followers follow. 4. The exposure apparatus according to claim 1, wherein the predetermined position is an exposure position in an exposure unit, and includes a control unit that performs drive control in synchronization with the exposure unit, the suction unit, the transport unit, and the motor unit. A photo printing apparatus characterized by the above-mentioned.