JP2001209162A - Photographic paper transporting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a photographic paper transporting device which does not give rise to a hindrance in various kinds of processing to be carried out on a downstream side by transporting photographic paper without diagonal travel after the photographic paper is sorted to the right and left of a transporting path, then the front ends of the transportation of respective sheets of the photographic paper of right and left rows are aligned. SOLUTION: This device has a drive roller 24 for obtaining driving power from a first motor 22 to transport the photographic paper P(L) of the left row and a driven roller 28, a drive roller 25 for obtaining the driving power from a second motor 23 and a driven roller 29, and block member 31 for discretely freely turnably and pivotally supporting the respective driven rollers in order to transport the photographic paper P by aligning the front ends Pc and Pc thereof on the downstream side of a sorting means for sorting and transporting the photographic paper P of desired sizes to two rows of the right and left rows.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photographic paper transporting apparatus, and more particularly to a photographic paper transporting apparatus capable of greatly increasing a developing processing speed by a function of transporting photographic paper of a desired size to a downstream side of a transport path so as to be distributed right and left. The present invention relates to a technique applied to a photographic printing / developing apparatus described above.

[0002]

2. Description of the Related Art Exposure printing is performed on an emulsion surface of photographic paper (hereinafter, also referred to as paper), and then sequentially passed through processing tanks containing processing liquids for development, fixing, and stabilization, and then dried. A photographic printing / developing apparatus configured to discharge the image to the outside has been put to practical use.

For example, US Pat. No. 5,307,114
According to the photographic printing / developing apparatus disclosed in No. 5, the continuous roll paper contained in the paper magazine is cut off in advance and cut into a desired size by a cutter unit, and the emulsion surface is turned up. After being conveyed to the exposure baking unit, after exposure and baking to the desired size with the film set in the scanner, it is conveyed and transported sequentially through the processing tank containing the processing liquid for development, fixing and stabilization, and then dried. There has been proposed a device configured to discharge to the outside.

[0004] On the other hand, the applicant of the present invention has a Japanese Patent Publication No. 6-30765.
According to the number, the photographic paper pre-cut to a desired size is exposed, and the photographic paper is distributed to the left and right transport paths and arranged to be transported downstream so that the photographic paper is arranged in two rows on the left and right. Has proposed a "cut sheet sorting device" which transports photographic paper to improve the processing speed.

Further, Japanese Patent Application Laid-Open No. 9-3298 filed by the present applicant has been disclosed.
According to Japanese Patent No. 85, even in the case of a long photograph such as a panoramic photograph (a length along the carrying direction is 254 mm and a width orthogonal to the carrying direction is 89 mm), skew is prevented to prevent the photograph from moving along the carrying path. A sorting device that can be conveyed in parallel and that can reduce noise when sorting in a small size is proposed.

In order to align the leading ends of the photographic papers thus sorted in the right and left rows and transport them to the developing section, as shown in the external perspective view of the conventional photographic paper transport mechanism in FIG. A drive roller 124 and a driven roller 130 that obtain power from the first drive motor 122 that transports the left-hand photographic paper P (L), and a second drive motor that transports the right-hand photographic paper P (R) The drive roller 125 for obtaining power from the drive roller 123 and the driven roller 130 are provided by bearings at the left and right bases 120 and 121.
31 is configured to be urged toward the drive roller by a coil spring 132, and the leading edges PC of the respective printing papers are individually detected by the left and right optical sensors S1 and S1 so that the leading edges are aligned. The first and second drive rollers are driven and then transported to the developing section.

[0007]

However, according to the conventional photographic paper transport mechanism for transporting the photographic paper, which has been sorted into the right and left rows by the conventional sorting device, to the development processing section after aligning the leading ends thereof, As shown, the driven roller 130
Are formed integrally, and the axial support portion of the roller is biased by a coil spring toward the drive roller side that is individually driven at the left and right base portions, so that the central portion of the driven roller 130 is bent.

For this reason, there is a difference in the conveying force on the outer peripheral surface of each of the drive rollers 124 and 125. The conveying roller is conveyed in an obliquely inclined state, and is subjected to a developing process, a drying process, and a discharging process performed in a downstream developing section. In some cases.

SUMMARY OF THE INVENTION Therefore, the present invention has been made in view of the above-mentioned problems, and after the photographic paper is distributed to the left and right sides of the transport path, the transport leading ends of the left and right rows of the photographic paper are aligned, and then the downstream side is provided. It is an object of the present invention to provide a photographic paper transport device capable of transporting the paper without skew when transporting the paper.

[0010]

Means for Solving the Problems To solve the above-mentioned problems,
In order to achieve the object, according to the present invention, a photographic paper of a desired size is arranged downstream of a sorting unit that sorts and conveys the photographic paper into two right and left rows toward the downstream side of the conveyance path, A photographic paper transporting device for transporting the sorted photographic paper to the developing processing unit by aligning the leading ends of the photographic papers, wherein the driving roller and the driven roller obtain power from a first driving unit for transporting the left-row photographic paper. A second pair of a driving roller and a driven roller that obtains power from a second driving unit that conveys the right row of photographic paper; a detection unit that individually detects the conveyance leading end; A control unit connected to a first drive unit, a second drive unit, and the detection unit, for controlling the drive so as to perform the conveyance after detecting both of the conveyance front end, and each of the driven rollers can be individually rotated. And bearing means for supporting the

Further, the shaft support means is a block integrally provided with a bearing portion for supporting the shaft portions at both ends of the roller and an urging portion for urging the bearing portion toward the drive roller. A fixing member fixed between the left and right base members forming the conveyance path therebetween so as to fix the block member, the fixing member being opposed to the driving rollers. .

[0012]

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 the photographic printing and developing apparatus 1 in which all covers provided detachably with respect to a housing 2 are removed and option setting is performed. The left storage section of the paper magazine to be added is shown expanded, and the discharge section of the completed photograph is omitted.

From this drawing, it is considered that the device 1 is configured to be vertically long and flat so as to minimize the area occupied, while allowing easy access to the 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 in a store or the like, it can be easily used in the exchange or replenishment of the processing liquid, which is a routine work. I have to.

The paper magazine left storage section is
It is attached detachably from the side of the device 1,
As shown, two paper magazines 3, 3 can be loaded at the same time 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 photographic printing and development completed with only the paper magazine right storage section provided. The apparatus 1 is first introduced into a lab, a photo studio, or the like, and the paper magazine left storage section can be appropriately added based on the frequency of use after the introduction and the consumption of paper including panoramic photographs.

On the other hand, the photographic paper P on which the color developing emulsion is previously coated on the photographic printing surface side is wound as a continuous long roll paper having a predetermined width (for example, 89 mm width) and completely shields light. And is rotatably housed in the paper magazine 3. The paper magazine 3 is configured to be symmetrical as shown in the drawing so that the paper magazine 3 can be commonly used for the left and right paper magazine storage units, and a handle 3a for unloading and loading on both wall surfaces on the front and back surfaces. And a shutter mechanism which constitutes an automatic opening / closing mechanism of an opening when the roll paper is discharged to the outside of the magazine 3.

The cutter units 4, 4 provided in close proximity to the paper magazines 3, 3 are for cutting the continuously transported photographic paper P to a desired size before baking. The photographic paper P cut to the size shown in FIG. 1 is first conveyed in the directions of arrows d1 and d2 to the exposure printing suction unit 51 provided in the dark box 7, and is temporarily sucked and fixed on the table 8 for printing. Is prepared, the film is sequentially fed to a scanner (not shown), and an optical system such as a zoom lens is automatically or manually adjusted to form an image of a desired size on the photographic paper P. It is configured to be baked.

After the printing operation, the photographic paper P is transported to the transport section 300 disposed above the cutter unit 4. The transport unit 300 is configured to be easily pulled out to the front of the housing 2 shown by a two-dot chain line.

A processing tank 12 for sequentially developing, fixing, and stabilizing the paper after baking is provided downstream of the transport unit 300, and a reversing roll provided between the processing tanks 12 is provided. It is configured so that the direction is changed and the drying unit is sent to the drying unit, and after drying, is finally discharged to the outside of the apparatus.

On the other hand, the photographic paper P cut by the cutter unit 4 is sucked toward the table without any gap by the suction effect of a large number of holes formed on the table 8, but is turned below the table 8. A suction portion 51 rotatable by a motor in the direction of arrow d3 shown in the figure is provided, and the printing paper P is held at a position shown in the drawing by turning it 90 degrees if necessary and printing is performed.

After the printing, the photographic paper P is transported in the direction of arrow d4 toward the transport section 300, and the photographic paper P1 shown in FIG.
After the determination of whether or not it is a large format PL at the position of
It is transported in the direction of arrow d5. Here, when the paper size is small (127 × 89 mm), P3, P4, P5,
In order to move to the position of P6 in the direction of arrow d6, it is sorted and transported by a sorting device to be described later in the right and left rows. In this way, the downstream processing tank 12 is transported in two rows. In this way, the processing speed is 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 printing in a direction perpendicular to the transport direction of the film loaded in the film scanner, the turning motor is driven 90 degrees in the direction of arrow d3 to perform printing, and the same type of paper is printed. As it is, a plurality of different sizes can all be printed.

FIG. 2 is an external perspective view of the sorting mechanism 200 for sorting the paper to the left and right and then moving the printing paper P to the positions P3 and P4. In this drawing, bearings (not shown) are respectively provided on two base plates 20 and 21 serving as left and right bases, and a drive shaft 250 having a cross-sectionally processed oval shape as shown, and a guide shaft 252. Are rotatably supported. Further, pulleys 254 are fixed to the drive shaft 250 and the guide shaft 252, respectively, and by extending a spring ring 253 between the pulleys 254, the drive rollers 66 slidably provided on the drive shaft 250 are provided. The idle roller 67 is reliably brought into contact with the roller to prevent slip during transport. For this purpose, the bearing on the guide shaft 252 side has a clearance that can move in the vertical direction as shown.

A drive shaft and a guide shaft 258 whose cross section is formed into an oval shape like the drive shaft 250 are further disposed on the downstream side, and a drive roller slidably provided on the drive shaft. (Not shown) and guide the idle roller 69.

As shown, the main carriage 100 has four thrust bushes 260 fixed at four corners.
By guiding both side surfaces of the idle rollers 67 and 69 as sliding surfaces on the inner wall surfaces of the thrust bush 260, the main carriage 100 is driven in the directions of arrows d6-1 and d6-2 shown in the figure. Accordingly, the idle rollers 67 and 69 are similarly moved in the directions of arrows d6-1 and d6-2.

Further, four thrust bushes 260 are fixed at four corners of the sub-carriage 101 provided opposite to the main carriage 100, and the drive roller 66 and the drive roller 66 are fixed on the inner wall surfaces of these thrust bushes 260. Both sides of the drive roller (not shown) are guided as sliding contact surfaces, and oval holes 66a, 68a of the drive rollers 66, 68 are formed by opposing flat surfaces 250a of the drive shaft 250 formed in an oval shape.
(Not shown) to drive the drive rollers 66 and 68 so as to transmit rotational power thereto.
As they are driven in the directions of 6-1 and d6-2, they are completely synchronized with the idle rollers 67 and 69, and arrows d6-1 and d6-.
It moves in two directions.

In order to drive the main carriage 100 and the sub-carriage 101 as described above, the base plate 79
A so-called double-shaft type is used for the motor 82 fixed to the side surface of the motor.
2b are fixed, and two timing belts 255 are stretched between these pulleys and two tension pulleys 256 rotatably fixed inside one base plate 79. The middle portion of the motor 8 is fixed to the main and sub carriages 100 and 101 using a fixing bracket 257.
The arrow d6-1 in perfect synchronization with the forward and reverse driving of 2
It moves in the direction of d6-2.

The pulley 251 for driving the drive shaft 250 is of a double type, and
7, 88 are hooked as shown. As the sensor S6, a sensor S6-1 for detecting the leading edge of the paper and a sensor S6-2 for detecting the paper width are arranged by a guide plate (not shown) upstream of the drive roller 66 as shown by a broken line.

With the above arrangement, when the sensor S6-2 detects that the paper is of a size that can be sorted after the paper is conveyed in the direction of arrow d5 at the neutral position,
First, the paper is stopped at the neutral position between the pair of the drive roller 66 and the idle roller 67 and the pair of the drive roller (not shown) and the idle roller 69 and then stopped. Thereafter, the motor 82 whose initialization operation has been completed is driven in advance, and power is transmitted via the timing belt 255, so that the main and sub carriages 100 and 101 are driven.
Is driven in the direction of arrow d6-1 to move the photographic paper P to the left column. Thereafter, the motor 81 is driven to send out the photographic paper P, and the photographic paper P is taken over by the downstream motor. Also, when the photographic paper P is moved to the right column, the motor 82 and the motor 81 are driven in a substantially similar manner so that the photographic paper P is sent out, and is taken over by conveyance by a downstream motor.

In this way, the photographic paper P conveyed downstream is sent to a conveyance section composed of a pair of a drive roller and an idle roller driven by a motor via a timing belt.

FIG. 3 is a front view of the transport section 300 shown in FIG. In this drawing, the same reference numerals are given to the components already described and the description is omitted, and the exposed photographic paper P is conveyed by a belt (not shown) driven to pass over the table 8. , Is introduced into the inside of the transport unit 300 from below, and back printing or the like is performed.
After that, they are guided and guided by the guide 37 toward the above-mentioned sorting device 200, and are sorted into left and right rows. Thereafter, each pair of an upstream drive roller and a driven roller, which are disposed downward and separated upward by a direction reversing roller 38 and separated by a distance equal to or smaller than the size of the photographic paper, is transported by a pair of upstream and downstream rollers. Introduced to the mechanism that aligns.

Referring further to FIG. 3 which is a perspective view of the appearance of the photographic paper transport mechanism shown in FIG. 4, a first stepping motor, which is a stepping motor for transporting photographic paper P (L) in the left column (L), as shown in FIG. A drive motor 22 is fixed to the base plate 20 described above.

A toothed pulley 22a is fixed to the output shaft of the motor 22. A bearing 27 a that supports one end of the first drive roller 24 is fixed to the base plate 20. Furthermore, a member 60 fixed on a bridging member (not shown) connecting the base plates 20 and 21 has a bearing 27 b that supports the other end of the first drive roller 24.
Has been fixed.

The first driving roller 2 thus pivotally supported
4 is provided with a toothed belt 26 which is stretched between the pulley 22a and the toothed pulley 22a. The first driving roller 24 is driven by the motor 22 in the direction of the arrow. I have.

On the other hand, a second drive motor 23 which is a stepping motor for transporting the photographic paper P (R) in the right row (R) is fixed to the base plate 21. A toothed pulley 22a is fixed to an output shaft of the motor 23. A bearing 27 a that supports one end of the second drive roller 25 is fixed to the base plate 21. Further, a bearing 27b that supports the other end of the second drive roller 25 is fixed to the member 60. The shaft portion of the second driving roller 25 thus supported is provided with a toothed belt 26 stretched between the pulley 23a and the second driving roller by the motor 23. 25 is driven in the direction of the arrow. On the other hand, driven rollers 28 and 29 forming a nip for transporting the photographic paper between the driving rollers 24 and 25 are individually pivotally supported as shown in the figure.

To this end, four block members 31 that support the shafts at both ends of the cored bar, which are the shafts of the driven rollers 28 and 29, are fixed between the conveying paths of the base plates 20 and 21. It is fixed on the member 30.

In FIG. 5, which is a sectional view taken along line XX of FIG. 4, these block members 31 are driven rollers 28,
It incorporates a hole 31a that allows the bearing bush 33 provided on the 29 shaft portions 28a, 29a to move, and a coil spring (shown by broken lines) 34 that urges the bearing bush 33 toward the drive roller. And it is being fixed to the fixing member 30 with the screw 35.

Referring again to FIG. 4, the leading edge Pc of each photographic paper transported in the left and right rows is connected to the left and right optical sensors S.
The first and second drive rollers are individually detected by S1 and driven so as to align the leading ends. Thereafter, the toner is sent to the downstream development processing section, fixing processing section, stabilization processing section, and drying section.
Are individually supported by shafts, and are urged toward the first and second drive rollers 24 and 25 individually driven by a total of four coil springs 34, so that the driven rollers are uniform. Can be pressed into contact with the drive roller 2
The transport force on the outer peripheral surfaces of the surfaces 4 and 25 can also be made the same over the entire surface, and the transport can be performed downstream with the transport leading ends Pc and Pc aligned without tilting.

[0040]

As described above, according to the present invention,
After sorting the photographic paper to the left and right of the transport path, align the leading edge of each photographic paper in the left and right rows, and then transport the paper to the downstream side without skew. A photographic paper transport device that does not hinder each process can be provided.

[Brief description of the drawings]

FIG. 1 is a view illustrating a main part of an entire configuration of a photographic printing / developing apparatus 1 in which a cover which is partially detachably provided to a housing 2 is removed, and a left storage part of a paper magazine set as an option is shown. It is an external appearance perspective view which showed the aspect which added.

FIG. 2 is an external perspective view of a sorting device 200.

FIG. 3 is a front view of the transport unit 300 shown in FIG.

FIG. 4 is an external perspective view of the photographic paper transport device.

FIG. 5 is a sectional view taken along line XX of FIG. 4;

FIG. 6 is an external perspective view of a conventional photographic paper transport device.

[Explanation of symbols]

 Reference Signs List 2 housing 3 paper magazine 4 cutter unit 7 dark box 8 table 12 developing tank 20 base plate (left base) 21 base plate (right base) 22 first drive motor 23 second drive motor 24 first drive roller 25 second Drive roller 26 Toothed belt 27a, 27b Bearing 28 First driven roller 29 Second driven roller 30 Fixed member 31 Block 33 Bearing bush 34 Coil spring 35 Screw 37 Guide member 38 Direction change roller 200 Distributing device S1, S2 Sensor P Photo paper Pc transport end

Claims (2)

[Claims] 1. A photographic paper of a desired size is disposed downstream of a sorting means for allocating and arranging photographic paper in two right and left rows toward a downstream side of a transport path, and transporting each of the sorted photographic papers. A photographic paper transporting device for transporting a photographic paper having a leading end aligned to a development processing unit, comprising: a first pair of a driving roller and a driven roller that receive power from a first driving unit that transports a photographic paper in a left column; A second pair of a driving roller and a driven roller that obtains power from a second driving unit that conveys a row of photographic paper, a detecting unit that individually detects the conveying leading end, a first driving unit, and a second driving unit. A control unit connected to the drive unit and the detection unit for controlling the drive so as to perform the conveyance after detecting both of the conveyance front end portion, and a shaft support unit for individually and rotatably supporting each of the driven rollers. A photographic paper transport device comprising: 2. A block integrally provided with a bearing portion for supporting a shaft portion at both ends of a roller and a biasing portion for biasing the bearing portion toward the drive roller. And a fixing member fixed to face each of the drive rollers between right and left base members forming the transport path therebetween to fix the block member. The photographic paper transport device according to claim 1.