JPH079151Y2 - Photosensitive material conveying device in photo processor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a conveying device for transferring a photosensitive material from a printing section to a developing section in an automatic processor for photographic photosensitive materials. More specifically, the present invention relates to a conveying device that clamps the front and rear ends of a long photographic light-sensitive material back and forth on one conveying drum surface, attaches it to a medium slack loop, and conveys it.

(Prior Art) This type of conventional transfer device guides the photographic paper fed from the printing section to the intermediate drive roller of the developing section with a guide and cuts it to a certain length while forming a loop, leaving the trailing end uncut. It was hanging down.

Further, as shown in FIG. 8, a movable roller in which the lower end of an arm (21) equipped to reciprocate like a pendulum from the printing unit side roller (24) to the developing unit side roller (25) is openably and closably pressed against each other. A nipping and feeding section consisting of (22) and pressure roller (23) is provided, and the nipping and feeding section nips the tip (26a) of the long photographic photosensitive material (26) fed from the printing section to develop the arm. Drive and shake, and the tip of the photographic light-sensitive material is sent to the intermediate drive roller (25) on the developing section side by rotation of the moving roller (22) and pressure bonding roller (23)
Open and remove the tip (26a) from the clamping feed part, then drive the arm (21) to the printing part side and swing back, cut into a predetermined length and sent from the printing part The rear end of the photographic light-sensitive material (26) is nipped and pressed by the nip-feeding part of the swing-back arm (21) in the open state, and the photographic light-sensitive material is moved to the front end (26) by the intermediate drive roller (25) on the developing part side.
It is clamped while it is being sent from a) to the developing section one by one, and the arm (21) is slowly and gradually driven according to the developing processing speed on the developing section side to shake, and the rear end is intermediate by the rotation of the moving roller (22). The pressure contact roller (23) is opened at the place where it is delivered to the drive roller (25), and the sandwiching state by the sandwiching feed section is released to complete the transport operation of one long photographic photosensitive material to the developing section. During these transport operations, the development processing in each processing solution tank in the development section takes a certain amount of time compared to the exposure processing time in the printing section, and due to the time difference, the intermediate section of the photographic material loops. It is slackened and hangs down and is waiting for adjustment.

(Problems to be solved by the invention) In such a transporting device in which the trailing end of the photographic light-sensitive material is left hanging as it is and stands by, the trailing end of the free state is liable to be entangled with the intermediate drive roller of the developing section. It was a cause of troubles such as scratching the surface of the photographic light-sensitive material or failure of the device by getting caught up in the delusion.

The arm-type transfer device that drives in a pendulum shape holds the leading and trailing ends of the long photographic photosensitive material fed from the printing unit by one holding and feeding unit provided at the lower end of the arm and swings and drives it to the developing unit. This is a mechanism for feeding in, which conveys one long photographic light-sensitive material by a two-stroke operation in which the arm is reciprocated between the printing section and the developing section in two strokes. The mechanism was inefficient in that it was necessary to stop the feeding of the photosensitive material from the printing section and make it stand by.

The present invention aims to eliminate such an adverse effect by using a wide cylindrical peripheral surface by using a drum mechanism, and by carrying out the rotational movement thereof, it can be conveyed safely, reliably and efficiently.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention has a conveying drum having a cylindrical peripheral surface and a long photographic photosensitive material fed from a printing section as a pre-processing section for conveying to the drum surface. The front and rear ends of the conveying drum are clamped on the conveying drum surface while forming a loop-shaped slack, and are conveyed intermittently to the developing unit as the post-processing unit from the leading end of the long photographic photosensitive material for sequential conveyance. A rear end holding rod for holding the rear end of the photographic light-sensitive material and a front end holding rod for holding the front end on the peripheral surface are arranged adjacent to each other in the circumferential direction along the axis at predetermined intervals in the front-rear direction, and the drum. Equipped with a spring to press and urge the surface of the rear end clamping rod so that it can be freely separated from and attached to the surface, and both rear clamping pins are linked to the rotation of the transport drum at a fixed timing. Temporarily separated and rotated to reopen The present invention relates to a photosensitive material conveying device in a photographic processor, characterized in that the conveying device is arranged between a printing unit and a developing unit and uses a wide gentle arc surface of a conveying drum. The front end of the long photographic light-sensitive material fed from the printing section is pressed and clamped by the rear-side tip holding rod to rotate, and subsequently, the long photographic light-sensitive material extending from the printing section to the rear edge is gradually loosened. While forming a loop-shaped middle slack, the leading edge is sent to the developing section by the rotation of the conveying drum to release it from the rear side tip clamping rod, and the front drum is rotated around the printing section by the conveying drum to loop at the front side rear edge clamping rod. -Shaped middle slack is crimped and clamped, and the leading end of another long photographic photosensitive material that is sent from the printing section by the adjoining rear tip clamping rod is crimped and clamped to loosen the middle slack. While forming, send to developing section The trailing end of the long photographic light-sensitive material has been conveyed to the developing unit, and the leading end of the following long photographic light-sensitive material has been fed to the developing unit and circulated to the printing unit. By clamping the trailing trailing edge with the trailing edge clamping rod and sequentially sending it to the developing section, the operation of the printing section can be stopped from the printing section with a relatively high processing speed to the multiple long photographic photosensitive materials It is possible to continuously convey to the developing unit without performing the above.

(Function) The leading edge of the preceding photographic photosensitive material fed from the printing section is temporarily separated from the drum surface in association with the rotation of the transport drum, and is crimped and clamped by the rear edge clamping rod on the rear side, which is then transported. While the photographic photosensitive material is rolled up on the drum surface with a wide arc by the drum to form a moderately slack loop, the leading edge of the photographic photosensitive material is conveyed to the intermediate drive roller of the developing section and sent to the drum surface of the tip clamping rod. Pressing and pinching is linked to the drum rotation and separated and released to return.The subsequent rotation turns the rear end clamping rod on the front side of the drum surface to the printing part side and linked to the rotation to separate and rotate horizontally to return to the rear end. The clamping rod clamps the trailing edge of the preceding photographic light-sensitive material sent out from the printing section after being baked and cut into a certain length, and then it is printed and sent to the subsequent trailing photographic light-sensitive material. Turn the cut tip The trailing edge of the trailing edge of the leading edge of the photographic photosensitive material that has reached the intermediate drive roller of the developing section is conveyed by the rotation of the drum, where the trailing edge of the leading edge of the trailing edge gripping rod is temporarily separated and returned to return to its original position. Is released from the crimping and pinching of the trailing end pinching rod that returns to the separating rotation in association with the rotation of the drum, and the feeding of the preceding one long photographic photosensitive material from the printing section to the developing section is completed.

The leading edge of the trailing photographic light-sensitive material, which is crimped and clamped by the adjacent tip-holding rod that has reached the intermediate drive roller of the developing section, is conveyed to the intermediate drive roller by the rotating drum, and is transferred to the intermediate drive roller. The drum is rotated by being released from the tip holding rod that returns in a separated state in association with the rotation, and then the rear end of the trailing photographic light-sensitive material is linked to the drum rotation on the side of the printing unit, similarly to the conveyance of the preceding photographic light-sensitive material. Two photographic light-sensitive materials that are separated from each other, horizontally rotated, and then pressed back and forth by the rear-end clamping rod to be continuously repeated, and the long cuts sent forward and backward from the printing unit are followed. Since the leading and trailing edges of the sheet are continuously sandwiched between the transport drums and carried around to the developing section, the two long and long photographic light-sensitive materials that are trailing and trailing are continuously connected without stopping the processing operation of the printing section. And carry it to the development section It can be.

(Example) Next, a specific example of the carrier device according to the present invention will be described with reference to the drawings.

In FIGS. 1 to 7, (1) is a conveying drum, which has a notch (3) formed by cutting out a central peripheral surface and has left and right drum surfaces, and is configured to rotate in one direction on a support shaft (2). The drum surface is inserted between the printing unit and the developing unit with the drum surfaces facing each other, and is supported by the left and right frames (20) (20).

On the drum surface, the outer ends (4a) (4a) of the rear end clamping rods (4) (4) are supported by the support rods (5) (5) so as to move up and down in parallel with the axis. Towards the traction state using a spring or the like, and the inner side edges (4b) and (4b) pivot horizontally with respect to the supporting rods (5) and (5) in the rotational direction of the drum to Install it so that it always returns to the position along the axis. Supporting rod (5) for this rear end holding rod (4) (4)
A crimp bearing (6) is provided at the tip of (5) for contacting the cam (8) on the support shaft (2), and the elbows of the outer edges (4a) (4a) are attached to the frame (20) (20). Rotating bearings (7) (7) contacting the arm guide (9) having the provided uneven portion
Is provided, and the trailing end clamping rods (4) and (4), which are in pressure contact with the drum surface at a predetermined position (timing) in cooperation with the rotation of the transport drum (1), resist the traction force of the spring by the cam (8). Then, the arm guide (9) pushes it up to separate it, and the arm guide (9) pushes the elbow to rotate the inner edge (4b) of the drum surface (conveyance).
90 ° horizontally to open along the direction to open, and the subsequent rotation of the drum (1) releases the crimp bearing (6) and the rotary bearing (7) from the cam (8) and the arm guide (9). By this, the rear end clamping rod (4) (4)
Is returned to the position along the original axis and further in the pressure contact state.
The mechanism for moving the rear end holding rod (4) to and from the drum (1) surface and the rotating mechanism return to rotate above the rear end (14b) of the photographic light-sensitive material (14), which will be described later, to cause scratches. It is effective in being able to press and pinch securely so as not to attach it.

Reference numeral (10) is a front end holding rod, which is arranged on the left and right drum surfaces on the rear side of the rear end holding rods (4) and (4) adjacently in parallel with each other at a predetermined interval and is supported so as to move vertically. A guide pin (11a) is attached to and supported by a spring (12) in a pulled state toward a shaft center at (11), and linked to the rotation of the transport drum (1) at right and left frames at predetermined positions (timings). (20) (20)
The crimping bearing (13) provided on the upper part pushes up the outer edge (10a) of the tip holding rod (10) against the pulling force of the spring (12) to bring it into a separated state, which is linked to the continuous rotation of the transport drum (1). Then, the outer side edge (10a) is released from the crimp bearing (13), and the tip holding rod (10) returns to the original pressure contact state. By providing this front end holding rod (10) in parallel and close to the rear side of the rear end holding rod (4), the front and rear long photographic photosensitive materials (14) (15) fed from the printing section are conveyed. It is effective for continuous transport on the drum (1) without interruption.

In this way, the rear end holding rod (4) and the front end holding rod (10) which are supported in pressure contact with the drum surface at a predetermined position (timing) in association with the conveyance rotation of the conveyance drum (1) are respectively paired. By operating the operating parts such as the cam (8), the arm guide (9), and the crimping bearing (13) to be pushed up against the force of the spring and rotating it, The trailing edge and the trailing edge of the long photographic light-sensitive material are automatically sandwiched and attached by both sandwiching rods adjacent to the same drum surface, and are released, and two long photographic photoreceptors exposed before and after are released. The material can be conveyed to the developing section without suspending the exposure operation in the printing section. The process will be described in sequence with reference to FIG. Photosensitive material fed in over the left and right drum surfaces (14) Insert the tip (14a) between the rear tip clamping rods (10) and (10) pushed up from the drum surface, and press and clamp it as shown in (b) and transfer it to (c) and (d). The drum (1) rotates and stops, and the photographic light-sensitive material (14) fed in after that in the figure (e) is taken in to support and assist the formation of the loop (14c) on the loop formation assisting piece (16), (F) As the loop (14c) becomes larger in the figure, the load pushes the auxiliary piece (16) to open the loop (14c).
Rotate drum (1) while moving c) downwards,
(G) In the figure, the tip (14a) is sent to the intermediate drive roller (17) and at the same time the tip clamping rods (10) (10) are pushed up to release the tip (14a), and the tip clamping rod (10) separated by the rotation of the drum ( 10) (10) overtakes the tip (14a) and returns.

(H) The figure shows the front side rear end clamping rods (4) and (4), which have returned to the printing unit side by the rotation of the drum (1), are pushed up and separated, and the inner end pieces (4b) and (4b) are conveyed. By rotating 90 ° along each of them, the trailing edge holding rods (4) (4) come off from the lower side of the photographic light-sensitive material (14) being conveyed in parallel to the outside of the side edge (edge), and the printing portion. While the front end of the rear end (14b) of the photographic light-sensitive material, which has been cut into a long length from the front side, is pressed against the drum surface by the rear end pressure roller (19), the inner end side of the rear end clamping rod (4) (4) (4b) (4b) is the drum (1)
Of the photographic photosensitive material (14) along the circular arc surface of the drum and is returned to the rear end (14b) in a parallel position along the axis to be pressed and clamped on the drum (1) surface. (See the drawing), the rear end (14b) of the photographic photosensitive material is conveyed while being pressed and clamped to the drum surface by the rear end clamping rods (4) and (4) by the rotation of the drum, and released from the rear end pressure bonding roller (19).

(I) In the figure, the tip holding rods (10) (10) that have returned by the subsequent rotation of the drum (1) are pushed up and separated from the drum surface, and the next photographic photosensitive material (15) sent from the printing section Welcome the tip (15a) across the left and right drum surfaces of the recessed portion (3), and the tip clamping rods (10) (10) return in the figure (n) to clamp the tip (15a) under pressure. The rotation of the drum (1) is stopped, the loop (15b) is largely retained and formed, and in the meantime, the intermediate drive roller (17) is used to send the loop (14c) portion of the photographic photosensitive material (14) in front to the developing section. Repeated feeding, and the previous photographic light-sensitive material (1
As the loop (14c) disappears when 4) is sent to the developing unit, the drum (1) rotates to push up the rear end holding rod (4) to release the rear end (14b) and the intermediate drive roller (17) to develop the developing unit. And the rear end clamping rods (4) and (4) are pressed and returned to the drum surface.

(2) Guide the tip (15a) of the next photographic light-sensitive material (15), which has been conveyed by being pressed and held by the tip holding rod (10) by the rotation of the drum (1) shown in the figure, to the intermediate drive roller (17). Tip clamping rod (10) (10)
When the drum rotates, the tip (15a) is overwhelmed, and it returns to the surface of the drum with pressure contact and returns to the printing unit side.

In the figure, (18) indicates a pressure roller which is brought into pressure contact with the intermediate drive roller (17).

(Effect of the Invention) As described above, the present invention is based on the difference in time required for the processing between the printing section that performs the exposure processing in the photographic processing machine and the developing section that performs the development processing by sequentially submersing in each processing solution of the plurality of processing tanks. It solves the problem that the difference in the incoming transport speed causes a time step in the transport crossover between them, and the exposure work in the printing section, which has a relatively high processing speed, must be paused and waited. Is.

The photosensitive material conveying device in the photographic processor of this invention uses the wide and gentle drum surface of the conveying drum to provide two clamping rods adjacent to each other parallel to the axis, and these clamping rods are used to rotate the conveying drum. It is characterized in that it is configured to open and close by moving in and out of the drum surface in cooperation with each other at their own timing, and regarding the continuous feeding of the continuous long photographic light-sensitive material that has been exposed in the printing section to the developing section, By interposing the conveying device of the present invention between the printing section and the developing section, the rear end of the preceding long photographic photosensitive material fed from the printing section is clamped and fixed by the rear end clamping rod on the front side of the drum surface, After that, the leading edge of the succeeding long photographic light-sensitive material is clamped and fixed by the leading edge holding rod adjacent to the rear side of the trailing edge holding rod and carried by the rotating transport drum, and the exposure processing speed of the printing unit is reached. Accordingly It can be conveyed without.

Therefore, it is possible to eliminate the time loss due to the difference in processing speed of each part that occurs in the series of processing steps in the photo processor,
Especially, since the long photographic light-sensitive material can be continuously exposed and sent out without the exposure work in the printing section being affected by the low-speed development processing speed in the developing section, It can be performed properly without waste of time.

Further, the two clamping rods provided adjacently to the front and rear of the drum surface have a large gap between the clamping rods on the opposite drum surface, and by utilizing the drum rotation in this wide arc space, the long photosensitive material Since both ends are clamped and fixed on the same surface and fed to the developing unit while being attached to the rotation of the transport drum, a gentle and gentle loop can be formed, and the long photographic photosensitive material is broken at the middle loose loop part. There is no risk of entanglement or entanglement, and the paper is smoothly fed to the drive roller for the developing section and the trailing edge of the long photographic photosensitive material does not cause transport problems such as being caught in these rollers. It has the effect that it is very useful for increasing

[Brief description of drawings]

FIG. 1 is a perspective view of a carrying device embodying the present invention, FIG. 2 is a perspective view of a main part of a drum showing a partly cut-away vertical engaging / disengaging movement of a tip holding rod, and FIG. 3 is a side view showing the engaging / disengaging movement of the same. FIG. 4 is a perspective view of a drum main part showing the pivoting operation of the rear end holding rod, FIG. 5 is a plan view showing the pivoting operation of the same, and FIG. 6 shows the conveying process by the conveying device of the present invention. FIG. 7 is a schematic side view showing the steps sequentially, FIG. 7 is a perspective view showing an intermediate driving roller in the conveying apparatus of the present invention, and FIG. 8 is a schematic side view showing the conveying operation by the conventional conveying apparatus. In the figure, (1) is a conveying drum, (3) is a recessed portion, (4) is a rear end holding rod, (4a) is an outer edge, (4b) is an inner edge,
(8) shows a cam, (9) shows an arm guide, (10) shows a tip holding rod, and (12) shows a spring.

Claims (3)

[Scope of utility model registration request] 1. A long photographic image is formed in a developing section as a post-processing section by sandwiching the front and rear ends of a long photographic light-sensitive material sent out from a printing section as a pre-processing section on a conveying drum surface while forming a loop-shaped slack. In order to convey the material sequentially from the leading edge of the photosensitive material, the trailing edge clamping rod that clamps the trailing edge of the photographic photosensitive material is clamped to the front side in the circumferential direction on the circumferential surface of the transport drum that rotates intermittently, and the leading edge is clamped to the rear side. The front end clamping rods are arranged so as to be adjacent to each other at a predetermined interval along the axis, and the rear end clamping rods are further horizontally rotated so as to press and urge the drum surface so as to be detachable. A photosensitive material conveying device in a photographic processing machine, wherein both of the holding rods are linked to the rotation of a conveying drum so as to be temporarily separated from the surface of each drum to rotate and return to open. 2. The utility model registration as claimed in claim 1, wherein said conveying drum is provided with a recessed portion by notching a central peripheral surface in a concave shape, and a front end holding rod and a rear end holding rod are respectively provided on the left and right drum surfaces. A photosensitive material conveying device in the described photographic processor. 3. The front end holding rod and the rear end holding rod are provided so as to be pressed against the drum surface by a spring and to restore the horizontal rotation of the rear end holding rod. 3. A photosensitive material conveying device for a photographic processing machine according to claim 1 or 2, wherein the clamping rods are separated and rotated by engaging with an operating portion including a guide and a cam provided. .