JPH0571935B2 - - Google Patents

Description

Detailed Description of the Invention [Industrial Application Field] The present invention relates to a magazine, etc. that winds up and stores the exposed photographic paper web in an automatic printer that exposes and prints a color original onto a web of color photographic paper, for example. The present invention relates to a winding and storage device for strip-shaped photosensitive material applied to.

[Prior Art] In recent years, automated photo printers that use web-shaped color photographic paper have become popular in so-called "color labs" that perform large-scale reproductions of color photographs from color originals. .
In this type of automatic printer, a roll of photographic paper web is rotatably stored in a supply magazine, and after being sequentially pulled out to an exposure section and exposed to the desired image, a spool placed in the exposed magazine is It is generally known that the material is rolled up and then re-rolled for storage.

At this time, the automatic printers used in color labs, etc. are relatively large and use wide and long photographic paper webs, so the magazine that stores the web in rolls is also large, and it is difficult to wind up the web. The paper spool is usually located in the center of the large magazine, so that the distance from the insertion slit of the photographic paper web forming the outer wall of the magazine to the spool is large.

Therefore, it is difficult to automatically attach the leading end of the photographic paper web to the spool, and generally, the photographic paper web is manually attached by opening the lid or door provided on the magazine. Manual operations are required to pull the leading edge of the web into the magazine and lock it onto the spool.

As a means for attaching the photographic paper web to the winding spool,
The specification of No. 60-66542 (Utility Model Application No. 61-183354, name of the device "Rewinding device for strip material") states that a winding spool is placed in the center of the magazine close to the insertion slit for the photographic paper web. The magazine is supported so that it can be moved between positions, and is biased by a spring or the like in a direction close to the insertion slit, and is placed on a spool or wound on it at a fixed position inside the magazine near the insertion slit. A device is described in which a guide roll is pivotally supported in contact with the outer periphery of a photographic paper roll.

In the device of the prior application, before the photographic paper web is wound up, the spool is located close to the insertion slit, and the leading end of the photographic paper web inserted through the slit is easily and automatically engaged with the spool. and is configured so that as the diameter of the roll increases according to the amount of winding, the spool is displaced toward the center of the magazine because its outer periphery is in contact with a guide roller at a fixed position. It is.

[Problems to be Solved by the Invention] Although the device of the prior application is useful, there still exist problems that require some improvement in practical use.

That is, the device has a complicated structure because the spool moves between the center of the magazine and a position close to the insertion slit. It is cumbersome to manually align the grooves on the spool with the insertion slits.
Furthermore, since the spool is displaced as the diameter of the photographic paper roll increases, the guide roller comes into pressure contact with the emulsion surface of the photographic paper, which tends to cause scratches.

The present invention solves these problems and provides a more practical winding and recovery device for a strip-shaped photosensitive material.

[Means for solving the problem] A spool with a double structure consisting of a core shaft and an outer cylinder fitted concentrically with the core shaft is pivotally supported in the center of the magazine that stores the exposed photographic paper web. is configured to be able to rotate within a certain angular range with respect to the core axis and with a delay in rotation of the core axis, and the core axis and the outer cylinder are each provided with an axial groove into which the leading end of the photographic paper web is inserted; The two grooves are aligned at one end of the rotational angle range of the outer cylinder, and when the leading end of the photographic paper web is engaged, the photographic paper web is stopped with the feeding direction facing the two grooves aligned. Then, rotate the core shaft in one direction, stop it at the desired position, insert the leading edge of the photographic paper web through the groove of the outer cylinder and into the groove of the core shaft, and then rotate the core shaft in the opposite direction. The photographic paper web is held between the outer cylinder and the edge of the groove of the outer cylinder, which rotates later than this, to ensure that the photographic paper web is wound onto the spool. .

Additionally, a movable guide plate is placed between the magazine's photographic paper web insertion slit and the spool.
When first attaching the leading end of the photographic paper web to the spool, set the movable guide plate in a position that communicates the insertion slit with the spool, and then move it to a position where it does not contact the surface of the photographic paper web. , configure it to evacuate automatically.

[Function] Initially, when the leading end of the photographic paper web is attached to the spool, the movable guide plate is set at a position that connects the insertion slit and the spool, and the movable guide plate is set at a position where the insertion slit and the spool are connected, and the core axis of the spool and the outer cylinder are connected. Since the grooves are aligned and oriented toward the position into which the photographic paper web is fed, the leading end of the photographic paper web is easily inserted into the groove of the spool. Next, when the core shaft rotates, the outer cylinder rotates behind the core shaft, so the positions of the grooves between the two are shifted, and the movable guide plate secures the end of the photographic paper web by sandwiching it. Automatically retreats to a position away from the surface.

[Example] The drawings depict one embodiment of the invention.

Figure 1 is a side cross-sectional view showing a magazine loaded with spools attached to the photographic paper web (hereinafter simply referred to as "web") feeding section of the main body of the color printer, and 1 is the main body of the color printer. ,
2 indicates a magazine.

A web supply section and an exposure section (not shown) are installed in the main body 1, and the web (W) is stored in the web supply section in the form of a roll, and drawn out to the exposure section as appropriate to expose a desired image. be done.

The exposed web (W) is fed out from a feeding portion 15 formed on the outer plate 14 of the main body via a feeding side guide roller 11 and nip roller 12. Guide roller 11 and nip roller 1
An elevating roller 13 is arranged between the two. The lifting roller 13 is normally at the raised position indicated by the chain line 13', and is lowered to the solid line position when pulling out the exposed web (W) from the exposure section.

The nip roller 12 rotates in the direction of the arrow by a drive device (not shown) to convey the web (W), and
Connected to the drive device via a one-way clutch,
It is designed to prevent reversal. In other words, when the drive device rotates in the direction of the arrow to feed out the web (W), and if the web (W) itself is pulled in the feeding side, the nip roller 12 can idle and be pulled out, but it cannot be pulled out in the opposite direction. If it is pulled, the web (W) is restrained. This results in
The web (W) can be conveyed from the exposure section by the vertical movement of the lifting roller 13.

Further, a photoelectric sensor 16 for detecting the leading edge of the web (W) is arranged between the nip roller 12 and the feeding section 15. In this system, a light source and a photoelectric element are placed opposite each other, and when a web is inserted between the two and the light incident on the photoelectric element is blocked, a signal is generated, which does not cause unnecessary exposure of the web. Because there is no
It is desirable to use a safe light for the photosensitive material used, and the light is turned off after the web (W) is detected.

Further, a timer device (not shown) is attached so that the feeding and conveyance of the web is stopped when a certain period of time has elapsed since the photoelectric sensor 16 detected the leading edge of the web (W).

As shown in the left half of FIG.
The body 21 and the lid 22 are connected by a hinge 23, and when the lid 22 is closed, a light-tight box is formed.

A block 24 is attached to the body 21 and the web (W) receiving part, and has a slit 25 that engages with the delivery part 15 formed by recessing the outer plate 14 of the main body part 1 and through which the web (W) passes. It has been done.

A shutter plate 21 for opening and closing the slit 25 is mounted inside the block 24. The upper end of the shutter plate 21 engages with a crank 28 supported by a shaft 27 erected on the side wall of the body 21, and the other arm of the crank 28 slides on the outer surface of the side wall in the left-right direction in FIG. It engages a lever 29 which is removably mounted.

When the magazine 2 is removed from the main body 1,
The crank 28 is rotated to the position shown by the two-dot chain line by a spring (not shown), and the shutter plate 26
has descended to the position where it closes the slit 25,
The inside of the magazine 2 is shielded from light. Magazine 2 to main body 1
When the lever 29 is installed at a predetermined position, the right end of the lever 29 comes into contact with the outer plate 14 of the main body 1 and is pushed in, rotating the crank 28 to raise the shutter plate 26 and release the slit 25. Note that 30 in the figure
is for regulating the lower limit position of the shutter plate 26.

A pair of upper and lower fixed guide plates 31 are disposed inside the block 24 with the path of the web (W) in between, and a freely rotating guide roller 32 is pivotally supported on the left edge of each of these fixed guide plates 31. There is.

Further inside the fixed guide plate 31, a pair of upper and lower guide plates 33, 34 are provided with stoppers 35, 36.
It is pivoted so that it can rotate between a retracted position shown by a solid line and a guide position shown by a chain line. Details of the movable guide plates 33 and 34 will be explained later.

A spool is mounted further inside the movable guide plates 33, 34, approximately at the center of the magazine.

The configuration of the spool will be explained with reference to FIG. 2, which is a partially cutaway perspective view, and FIG. 3, which is a sectional view. Note that the left and right directions in the following description of the spool are those shown with respect to FIG.

Split bearings 3 are installed on both side walls of the body 21 of the magazine 2.
7, split bearings 38 are also mounted on both side walls of the lid 22, and each of these has a semicircular shape.
2 form an integral bearing when closed.

A journal 39 is attached to the right side and a journal 40 is attached to the left side to the left and right split bearings 37 and 38, and a handle 41 is fixed to the outside of each of them. It is supported on a shaft 42 and a left shaft 43.

These left and right shafts 42 and 43 support the core shaft 44 of the spool, and two bolts 45 support the spool core shaft 44.
The left and right shafts 42, 43 and the core shaft 44 are fixed. Core shaft 4
4 has a groove 46 cut into it, into which the tip of the web (W) is inserted, as shown in the first figure.

An outer cylinder 47 is attached to the outer periphery of the core shaft 44 so as to be concentric with the core shaft 44 and rotatable with respect to the core shaft 44 . A groove 46 of the core shaft 44 is formed on the circumferential surface of the outer cylinder 47.
In addition, as shown in the third figure, a groove 49 is formed in a part of the left edge, and a contact pin 50 erected at the left end of the core shaft 44 is inserted into the groove. 49, the core shaft 44 of the outer cylinder 47
The respective positions are set so that the slit 48 of the outer cylinder 47 is aligned with the groove 46 of the core shaft 44 at one end of this rotation range. .

Further, on the right end side of the outer cylinder 47, a brake ring 51 that slides into contact with the end surface of the outer cylinder 47 is arranged. Brake ring 51
is loosely fitted into the left end of the right journal 39 and is compressed by a plurality of springs 54 to a friction ring 53 fixed to a disk 52 attached to the end surface of the journal 39. Therefore, when the outer cylinder 47 rotates, the brake ring 51 maintains a stopped state due to the frictional force between the brake ring 51 and the friction ring 53, and applies a brake to the outer cylinder 47 in sliding contact therewith.

Due to this braking action, when the core shaft 44 is rotated in both forward and reverse directions, the outer cylinder 47 follows behind the core shaft 44 by an angle set by the groove 49 and the abutment pin 50. That is, when the core shaft 44 rotates in the direction A shown by the arrow in FIG.
When the slit 48 of No. 7 is aligned with the groove 46 of the core shaft 44 and rotates in the opposite direction B, the slit 48 is shifted from the groove 46 and driven.

The outer ends of the left and right shafts 42 and 43 each protrude from the outer surface of the handle 41, and the left shaft 43 is equipped with a disk 57 having a gear 55 for driving the core shaft and a notch 58 for positioning.

The gear 55 engages with a gear 56 on the driving side and is driven by a drive device (not shown). The end face of the gear 55 is processed into a glossy or white painted surface that reflects light, and the disc 57 is attached to overlap this light-reflecting surface, and its surface is coated with black pine or other material that reduces light reflection. has been applied. A reflected light detection type optical sensor 59 is provided facing the circumference of the disk 57, and when the core shaft 44 rotates and the notch 58 coincides with the optical axis of the optical sensor 59, the light is detected from the light reflecting surface of the gear 55. The reflected light enters the optical sensor 59 and outputs a detection signal. This detection signal is detected when the core shaft 44 is at a position where the groove 46 of the core shaft 44 is aligned with the feeding direction of the web (W).
This is to stop the rotation of.

Further, a claw device including a claw plate 70 and the like is provided at the left end of the core shaft 44 for moving the movable guide plates 33 and 34 shown in FIG. 4 from the guide position to the retracted position. This will be discussed later.

As shown in the fourth figure, the movable guide plates 33 and 34 are fixed to rotating shafts 60 and 61, respectively, and are always urged in the vertically opening direction by springs 62 and 63.

Brackets 64 and 65 are attached to the right ends of the upper and lower guide plates 33 and 34 (according to the direction in the description of the spool), respectively.
An iron piece 67 is fixed to the cap to form a magnetic catch. When the upper and lower guide plates 33, 34 are closed to the guide position, the magnet 66 and the iron piece 67 come into contact and hold the guide plates 33, 34 in the guide position against the springs 62, 63.

Further, an operating piece 68 that projects toward the spool is attached to the upper bracket 64.

On the other hand, a claw device is disposed at the right end of the core shaft 44 of the spool to engage and lift the actuating piece 68 when the spool rotates in the direction B, thereby causing the magnet 66 and the iron piece 67 to engage with each other. be.

FIG. 5 shows the configuration of the pawl device. A fan-shaped claw plate 70 is pivotally supported by a shaft 71 in a narrow groove 69 carved in the right end of the core shaft 44, and a guide hole 73 provided in the claw plate 70 is engaged with a pin 72, so that the claw plate 70 is configured to be movable between the positions shown by the solid line and the position shown by the chain line.
Further, a wire spring 75 held by a pin 74 urges the claw plate 70 to take the position shown by the solid line. With this configuration, when the core shaft 44 rotates in the direction A shown in the first figure, when the claw plate 70 comes into contact with the actuating piece 68, it is pushed into the position shown by the chain line, and the movable guide plates 33 and 34 are moved to the guide position. However, when rotating in direction B, the claw plate 70 pushes up the actuating piece 68, so the magnet 66 is separated from the iron piece 67, and the holding force is released, so the movable guide plates 33, 34 Spring 62, 63
It is opened and takes the retracted position.

Next, the operation of the illustrated embodiment apparatus having the above configuration will be explained with reference to FIGS. 6A to 6D.

FIG. 6A shows a state in which the magazine cover 22 is opened and an unused spool is loaded. Since the magazine has been removed from the main body of the color printer, the shutter plate 26 has been lowered and the block 24 has been removed.
The slit 25 is closed. By hand,
The spool is mounted on the split bearing 37 on the body 21 side, the upper and lower movable guide plates 33 and 34 are closed to the guide position, and the lid 22 is closed after being held in that position by the magnetic catch.

FIG. 6B shows a state in which the magazine 2 loaded with spools is attached to a predetermined location on the main body. The lever 29 comes into contact with the outer wall 14 of the main body and is pushed in,
The shutter plate 26 is raised and the slit 25 is opened.

In this state, when the activation switch provided on the main body is activated, the drive device is activated and rotates the core shaft 44 in the A direction via the gears 56 and 55. At this time, the outer cylinder 47 has its slit 48
is followed by taking a position aligned with the groove 46 of the core shaft 44.

The disk 57 disposed at one end of the core shaft 44 is
It rotates together with the core shaft 44, and when the notch 58 comes to a position facing the optical sensor 59 when rotating in the A direction, the optical sensor 59 detects the reflected light from the light reflecting surface of the gear 55. is detected, and the rotation of the core shaft 44 is stopped. At this stop position, the groove 46 of the core shaft 44 and the slit 48 of the outer cylinder 47 aligned therewith are oriented in the direction in which the web (W) is fed.

On the other hand, on the main body 1 side, when the web (W) is conveyed passing through the nip roller 12 and its tip is detected by the photoelectric sensor 16, the sensor 16
A timer means for regulating the amount of feed is started.

The web (W) is continuously conveyed, and after the leading end passes the photoelectric sensor 16, the web (W) is stopped by a timer device when a suitable amount of time has elapsed until the web (W) is inserted into the groove 46 of the core shaft 44.

FIG. 6C shows the state at this time, where the groove 46 of the core shaft 44 and the slit 48 of the outer cylinder 47 are
It shows a state in which the web (W) is aligned, faces directly in the direction in which the web (W) is fed, and the leading end of the web (W) is inserted to the center of the spool.

In this state, the first image exposure to the web (W) is performed, and when the exposure is completed, the lifting roller 13 descends to pull the web (W) downward as shown by the chain line in FIG. Pull out the finished part from the exposure device section. At this time, the web (W) Nitsu Pro roller 1
Since the nip roller 12 has a structure in which it cannot be reversed by a one-way clutch, the portion held between the nip rollers 12 is stopped and transported only in the direction in which it is pulled out from the exposure device section. It goes without saying that the lifting stroke of the lifting roller 13 should be set depending on the length of the web to be conveyed.

Subsequently, the core shaft 44 is rotated in the B direction via the gears 56 and 55 by the driving device. Since the outer cylinder 47 is driven behind the core shaft 44, the alignment position of the slit 48 with respect to the groove 46 is shifted, and the tip of the web (W) is secured between the edges of the two, and the web (W) is It is rolled up around the circumferential surface of the outer cylinder 47.

Furthermore, when the core shaft 44 rotates in the direction B, the claw plate 7
0 engages with the operating piece 68 installed on the upper movable guide plate 33 and lifts it, so the magnet 66 separates from the iron piece 67, the magnetic catch separates, and the upper and lower movable guide plates 33, 34 is released from the holding force and opens to the retracted position by the urging force of the springs 62 and 63.

The exposed web (W) is then moved to the lifting roller 1.
By the vertical movement of 3, it is pulled out from the exposure device section,
By the rotation of the core shaft 44, it is wound onto a spool and stored in the magazine 2.

When winding the web (W) onto the spool, since the movable guide plates 33 and 34 are open to the retracted position, there is no risk of the surface of the web (W) coming into contact with the guide plates and causing scratches. The surface of the web (W) contacts and is guided by a freely rotating guide roller 32 that is pivotally supported at the rear end of a fixed guide plate 31.

In the above-mentioned prior application device, the surface of the rolled photographic paper roll is brought into contact with a guide roller at a fixed position, so that the spool moves against the biasing force of the spring, so that the surface of the photographic paper roll is moved against the web. The pressure contact force with the guide roller was large, which caused the occurrence of flaws, but the guide roller 32 in the apparatus of the present invention simply maintains the conveyance path of the web (W), and relatively light pressure is applied to the web surface. There is no risk of scratches as the material is in contact with the surface.

Although the present invention has been described above based on the illustrated embodiments, the present invention is not limited to the above-mentioned contents, and includes various modifications and applications.

For example, in the main body 1, the means for detecting the tip of the web (W) is a photoelectric sensor in the illustrated embodiment, but a micro switch that detects by mechanical contact may be used.

In addition, a structure in which the spool is pivotally supported on the side wall of the magazine in a light-tight manner, a structure in which an outer cylinder loosely fitted to the core shaft is driven at a certain angle behind the core shaft, or a structure in which the upper and lower movable guide plates are held at the guide position, Various conventional means other than the illustrated means can be applied to the structure for retracting the spool as it rotates, and the above description should be understood as one design example.

[Effects of the invention] (1) When winding up and storing an exposed photographic paper web into a magazine, the locking groove of the spool can be automatically aligned to a predetermined position, eliminating the need for manual operation as in conventional devices. No manual alignment work is required.

(2) Since the shaft support position of the winding spool is a fixed position within the magazine, the structure is simplified and the operation of attaching and detaching the spool to and from the magazine is easy.

(3) A guide plate is placed between the web insertion part of the magazine and the spool, so that the tip of the web can be securely attached to the spool just by feeding the web. Since the guide plate is retracted from the web path, the web surface is not scratched.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view of a device according to one embodiment of the present invention, FIG. 2 is a partially cutaway perspective view showing the main parts of the device, and FIG.
The figure is a sectional view showing the structure of the spool, FIG. 4 is a perspective view showing the movable guide plate and the claw device that moves it to the retracted position, FIG. 5 is a side view showing the structure of the claw device, and FIG. Figure 6D is a diagram illustrating the operating sequence of the same embodiment. DESCRIPTION OF SYMBOLS 1... Color printer main body part, 2... Magazine, 11... Guide roller, 12... Nip roller, 13... Lifting roller, 16... Photoelectric sensor,
26...Shutter plate, 28...Crank, 29
... Lever, 30 ... Hit, 31 ... Fixed guide plate, 32 ... Guide roller, 33, 34 ... Movable guide plate, 35, 36 ... Stopper, 37, 38
...Split bearing, 39,40...Journal, 41
... Handle, 42, 43 ... Shaft, 44 ... Core shaft, 47 ... Outer cylinder, 48 ... Concave groove, 50 ... Pin, 53 ... Friction ring, 55, 56 ... Gear,
57... Disk, 59... Optical sensor, 60, 61...
...Shaft, 62, 63...Spring, 64, 65...
... Bracket, 66 ... Magnet, 67 ... Iron piece, 68 ... Actuation piece, 70 ... Claw plate, 75 ... Wire spring.

Claims (1)

[Scope of Claims] 1. A device for winding and storing a strip-shaped photosensitive material image-exposed by an exposure means onto a spool pivotally supported in a light-tight magazine, wherein the tip of the strip-shaped photosensitive material is A core shaft that has a groove to be inserted and is rotatably driven in both forward and reverse directions, and is fitted onto the outer periphery of the core shaft so as to be rotatable within a certain angle range with respect to the core shaft, and within the rotation range. an outer cylinder having a slit formed at one end thereof to align with the groove of the core shaft; a braking means for causing the outer cylinder to follow and rotate the core shaft with a delay of the predetermined angle when the core shaft rotates; and the slit. positioning to stop the rotation of the core shaft so that when the core shaft rotates in a direction in which the slit and groove align with the groove, the aligned slit and groove face in a direction in which the strip-shaped photosensitive material is fed into the magazine; What is claimed is: 1. A winding and storage device for strip-shaped photosensitive material, comprising: a control means; and a guide device for communicating between the strip-shaped photosensitive material feeding section of the magazine and the slit section of the outer cylinder at the stopped position. 2. Claims characterized in that the guide device is a pair of guide plates that move between a position along both sides of a feeding route for the strip-shaped photosensitive material in the magazine and a retracted position separated from the route. The device for winding up and storing a strip-shaped photosensitive material according to item 1. 3 A pair of guide plates are rotatably pivoted around the feeding side end of the strip-shaped photosensitive material, and each is pivoted and biased toward the retracted position, and is placed at a position along the feeding path of the strip-shaped photosensitive material. The device for winding up and storing a strip-shaped photosensitive material according to claim 2, wherein the device is locked.