JPH034894B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a photosensitive material developer that can automatically adhesively transport a photosensitive material onto an endless belt, perform necessary processing, and then automatically peel and discharge the photosensitive material from the endless belt. Regarding equipment.

Conventionally, this type of developing device includes a sprocket conveyance (manual device) type, an endless belt conveyance (manual comb insertion) type, and an opposed roller (automatic conveyance) type, which use leader conveyance with a leader glued to the tip of the photosensitive material. However, in both of these methods, each of the photosensitive materials (film, photographic paper, etc.) is adhesively bonded in advance to form a long object, and then that long object is processed by the above-mentioned developing device. These devices are not suitable for continuous processing of a single photosensitive material itself before it is turned into a single long object, and the roller facing type is not suitable for continuous processing. This method is undesirable because it requires a large number of rollers, is structurally complex, and the rollers come into contact with the photosensitive surface. Therefore, there has been a demand for the development of an apparatus that can automatically process the photosensitive material itself.

The present invention was devised in response to such demands.

An object of the present invention is to provide a photosensitive material developing device that has a simple structure and can reliably process and convey a photosensitive material.

A second object is to provide a photosensitive material developing apparatus having a mechanism for automatically adhering and peeling a photosensitive material to an endless belt that conveys the photosensitive material.

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

FIG. 1 shows an embodiment of the invention. 1 is a photosensitive material development processing section, which consists of a development processing tank 2, a fixing processing tank 3, a washing processing tank 4, and a drying section 5 (B
is a blade. ). An endless belt 6 (an example divided into two belts will be described below) is arranged so that it can circulate through the processing section 1. Rollers 7, 8, 9, 10, 11, 12, 1
3, 14, 15, 16, and 17, and the tension roller 18 are for circulating the endless belt 6, and the endless belt 6 is configured to be driven by any one of the rollers. These become an endless belt conveyance mechanism. The roller 16 is mounted on a bearing 4 as shown in FIG.
It is rotatably supported by cantilevers by 2' and 43'. 8' is a pressure roller.

19 is a photosensitive material insertion slot, and the photosensitive material 20 inserted from there is guided by rollers 21, 22, 23, 2.
4, 25 onto the endless belt 6.

Reference numeral 26 denotes a tip detection means, which includes, for example, a light emitting element 27 and a light receiving element 28.

29 is an adhesive device, which is an adhesive tape reel 3
0, a tape drive stop mechanism 31, and a cutter 32. The tape drive stop mechanism 31 is the drive roller 3
3. consists of grooved rollers 34 and 35, and the drive roller 33 is configured to rotate for a predetermined time in response to the detection means 26.

36 is a tape peeling device, the number 37 attached thereto is a rotor for winding and feeding out the tape;
8 is a mechanical guide means, and 39 is a pressure roller. 40 and 41 are discharge rollers. Rotor 37
A mechanism for rotating forward and backward will be explained with reference to FIGS. 2 and 3.

The rotor 37 is fixed to a rotating shaft 37' which is rotatably supported by brackets 42'' and 43''.
Sharp pins are implanted at predetermined intervals on the circumferential surface. The rotor 37 is rotated by a pressure-bonding rubber roller 44 for driving the rotor. The rubber roller 44 is fixed to a rotating shaft 45 that is rotatably supported by the frames 42 and 43, and a spur gear 46 is fixed to the rotating shaft 45. The spur gear 46 is adapted to mesh with a spur gear 47. The spur gear 47 is connected to the frame 42,
It is fixed to a slide element 49 which is slidable in the axial direction of a rotary shaft 48 which is rotatably supported by a rotary shaft 43 and is free in the direction of rotation.
Further, a driven transmission disk 50 is fixed to the slide element 49, and this disk 50 is opposed to a drive transmission disk 51 fixed to the rotating shaft 48, and these disks 50, 51 are crimped together. The force is changed by the compressive force of the spring 53, which is changed by adjusting the position of the disc pressure adjustment jib 52 that is slidable on the rotating shaft 48 (the adjustment is performed by tightening and releasing the screw 52'). These are adjustable and constitute a friction mechanism.

A spur gear 54 is fixed to the rotating shaft 48, and this spur gear 54 is meshed with a spur gear of a drive mechanism for the endless belt 6 to constantly rotate it in a clockwise direction.

FIG. 3 is a side view of the top view mechanism shown in FIG. 2, and the same constituent elements are given the same reference numerals and their explanations will be omitted. Reference numeral 55 denotes a lifting arm that lifts and lowers the pressure roller 39. Mechanical guide means 38 is shown as an exemplary guide plate.

Next, the operation of the apparatus of the present invention configured as described above will be explained.

When the photosensitive material 20 is inserted from the insertion opening 19 into the apparatus of the present invention in operation, it is guided by rollers 21 to 25 and rides on the endless belt 6 divided into two strips. It progresses. When the leading edge of the photosensitive material 20 is detected by the leading edge detecting means 26 (see also FIG. 4), the drive stop mechanism 31, which had been stopped until then, is activated to move the adhesive tape T onto the endless belt 6. The tip of the photosensitive material 20 is attached to the endless belt 6 by the adhesive tape T.
Prior to being glued to the endless belt 6, the adhesive tape T is glued onto the endless belt 6 by the required length (see FIG. 5). The drive stop mechanism 31 is stopped a predetermined time after such adhesion is performed. As a result, the loosened adhesive tape T is gradually tightened as the endless belt 6 continues to circulate, and finally reaches the blade of the cutter 32 (Fig. 6), whereby the adhesive tape T is cut. . The cut adhesive tape T' is adhered onto the photosensitive material 20 by a pressure roller 8'. Thus, the leading end of the photosensitive material 20 is adhered to the endless belt 6 with the adhesive tape.

In this way, the photosensitive material 20 adhered to the endless belt 6 is passed through the processing section 1 as the endless belt 6 circulates, undergoes the necessary processing in each tank, etc., and completes the development processing. It enters the tape stripping device 36.

Since the drive system of the tape winding and feeding rotor 37 of the tape peeling device 36 is configured to rotate clockwise (that is, the rotating shaft 48 is rotated clockwise), the pressure roller 39
The adhesive tape T' (see FIG. 7) that has passed through the rotor 37 is stopped by a sharp pin of the rotor 37, and as it rotates, the adhesive tape T' is wound up (see FIG. 8).

As the winding progresses and the leading end of the photosensitive material 20 reaches the lower end of the guide plate 38, the photosensitive material 20 rises along the surface of the guide plate 38. In other words, the adhesive tape portion bonded to the photosensitive material 20 is spaced apart from the rotor 37 and gradually increases the tensile force of the adhesive tape portion between that portion and the adhesive tape portion locked to the pin of the rotor 37. I'll let you do it.

As a result, the rotational speed of the rotor 37 gradually decreases,
It is applied to the adhesive tape by the rotational force transmitted from the drive transmission disk 51 to the driven transmission disk 50, and then transmitted to the rotor 37 via the spur gears 47 and 46, and the rotor driving pressure rubber roller 44. When the above-mentioned tensile force exceeds the tensile force applied to the photosensitive material 20, as the photosensitive material 20 rises along the guide plate surface, the heated adhesive tape that has been caught and wound around the rotor 37 is unwound. In other words, the rotor 37 is rotated in the opposite direction and the adhesive tape that has been wound up there is fed out (see Fig. 9).
Finally, the wound adhesive tape portion is completely unwound from the rotor 37, and its lower end becomes a free end, and the adhesive tape portion from the tip of the photosensitive material 20 to the above-mentioned lower end is left hanging downward. When the paper is directed toward discharge rollers 40 and 41 and passed between these rollers, it is brought into the state shown in FIG. 10 and discharged to the next process.

The above-described processing can be performed automatically without depending on the length of the photosensitive material. The photosensitive material is attached to the endless belt using an adhesive tape, which simplifies the mechanism of the photosensitive material processing section and makes its maintenance easier.

In the above embodiment, the tape adhesion mechanism was explained as one in which the adhesive tape fed out from the tape reel is cut with a cutter, but the structure is not limited to this, and a structure using pre-cut adhesive tape may also be used. good. Furthermore, the endless belt does not have to be of a divided type; in that case, it is necessary to have a structure in which a sharp pin installed in the rotor of the tape peeling device can perform a locking function on the adhesive tape. It is preferable that the pin has a shape that facilitates the locking function. Furthermore, the rotor may have any configuration as long as it is capable of winding up and feeding out the adhesive tape, rather than having pins installed therein.

As described above, according to the present invention, the photosensitive material can be automatically developed without depending on the length of the photosensitive material.

Contributes to the simplification of the photosensitive material processing section mechanism.

In addition, it is possible to provide ease of maintenance.

Effects such as immediate response to changes in the size of photosensitive materials can be obtained.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing an embodiment of the present invention, Fig. 2 is a plan view of the tape peeling device, Fig. 3 is a schematic side view thereof, and Figs. 4 to 6 explain the operation process of the adhesive device. 7 to 10 are diagrams for explaining the operation process of the tape peeling device. In the figure, 1 is a photosensitive material development processing section, 6 is an endless belt, 7 to 17 are rollers, 18 is a tension roller, 26 is a detection means, 29 is an adhesive device, 36
is a tape peeling device.

Claims (1)

[Claims] 1. A photosensitive material development processing section, an endless belt transport mechanism that circulates an endless belt through the photosensitive material development processing section, a tip detection means for detecting the leading edge of the photosensitive material, and a photosensitive material processing section that detects the leading edge of the photosensitive material in response to the detection of the leading edge. an adhesive device that adheres the leading end of the tape to the endless belt with an adhesive tape; and an adhesive tape that appears after processing in the photosensitive material development processing section to peel off the adhesive portion of the endless belt from the endless belt. A photosensitive material developing device comprising: a tape peeling device for discharging the photosensitive material.