JPH0142103Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a sheet film conveying device that conveys a sheet film after development processing and drying to a sheet film storage container.

Generally, the film ejecting section is installed at the bottom of the device, so it is inconvenient to remove the ejected film with one's hands. Special Publication No. 52-47329 was created with these defects removed.
No. Publication is known. However, the invention disclosed in this publication forms grooves parallel to the rotating shaft on the circumferential surface of the roller provided in the film ejecting section, and the pitch of the grooves is also small, making it easy for dust to accumulate. There is a drawback that dust is easily attached to the film surface after drying because it is discharged while being pressed against the surface. Furthermore, since the groove pitch is small, there are many uneven lines on the circumferential surface of the roller, which makes it easy to damage the film surface.

Furthermore, after processing and drying, the film often curls due to the influence of the emulsion coating method, the layer structure of the film, the processing method, the surrounding environment, etc.
In the case of such a curled film, the grooves and protrusions rotate, as in the roller with grooves on the circumferential surface described in the aforementioned Japanese Patent Publication No. 52-47329, and the roller described in U.S. Patent No. 3,981,496. If the film is installed parallel to the axial direction, the film end may ride on the groove without falling into it, or the film may not be able to be secured at multiple points along the curl of the film end, causing the film to roll over the roller circumferential surface. If the film slides down, it may become impossible to transport the film to the storage container or the film surface may be easily damaged.

The object of the present invention is to solve the above-mentioned drawbacks of the conventional conveying device and provide a sheet film conveying device that safely and reliably conveys even curled sheet films to a sheet film storage container.

The sheet film conveying device of the present invention that achieves the above-mentioned object includes a sheet film storage container provided near a film discharge port for storing the discharged film in a substantially vertical direction, and a sheet film storage container for directing the sheet film toward the sheet film storage container. The roller has a pair of rotating rollers, and a protrusion row consisting of a plurality of protrusions is provided on the axis of at least one of the pair of rotating rollers in a direction substantially parallel to the axial direction of the rotating roller. A plurality of rollers with protrusions are provided in the axial direction of the rotary roller at intervals, and a row of protrusions on the roller with protrusions and a row of protrusions on another roller with protrusions adjacent to each other are arranged. , the rotating rollers are arranged so as to be out of phase so as not to overlap in the axial direction of the rotating rollers.

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

FIG. 1 is a cross-sectional view of a sheet film conveying device according to the present invention, and 1 has a resilient structure in which projections 2 are arranged at angular intervals of 45 degrees on a circumferential cross section as shown in FIG. It is a roller with protrusions made of a material with a large coefficient of friction (rubber is suitable), and the roller surface is further provided with, for example, three or four protrusions 2 in the direction of the rotational axis as shown in FIG. Note that the protrusions in this application do not mean protruding objects that are continuous in the rotational axis direction or circumferential direction, such as the heads of gear teeth or the ridges of screws.
It refers to something that sticks out independently, such as the wart-like thing shown in Figure 3.

In FIG. 1, 3 is a roller (preferably made of a material with a high coefficient of friction such as rubber) disposed opposite to the protruded roller 1, and 4 is a U-turn of a sheet film provided below the roller 3. guide,
Reference numeral 5 denotes a sheet film storage box provided at the film discharge port, which is provided with a side wall (guide) 6 that is vertically or somewhat inclined outwardly (to the right in the figure) and has a film receiver 7 formed below. In addition, 8 is a roller installed on the left side of the roller 3, 9 is a U-turn roller installed above the roller 8, 10 and 10 are rollers installed on the left and right sides of the U-turn roller 9, and 11 is a U-turn guide. be.

The developed and washed sheet film F, which has been changed direction by the U-turn roller 9 and the U-turn guide 11 and conveyed downward, is dried and turned upward to the right by the roller 3 and the U-turn guide 4, with a protrusion attached thereto. It is sandwiched between rollers 1 and 3 and is conveyed diagonally upward and to the right. The leading end of the sheet film F that had been clamped is guided obliquely upward along the guide 6 of the film storage box 5, and the rear end of the sheet film F is guided diagonally upward along the guide 6 of the film storage box 5.
It is held by the protrusion 2 of the protruded roller 1. Since the roller 1 with protrusions rotates clockwise, it is pushed by the protrusions 2 and transferred, and when the protrusions 2 pushing the sheet film F rotate to a position below horizontal, the sheet film F is pushed into the film receiver of the box 5 by its own weight. drop down. Since the sheet film F stored in the film storage box 5 is positioned substantially vertically, the operator can easily take it out without bending down.

As is clear from FIGS. 1 and 2, the roller 1 with protrusions has eight or fewer protrusions on the circumference, so the spacing between the protrusions 2 is wide, making it difficult for dust to accumulate and prevent damage to the sheet film. It's less likely to get dirty.

Furthermore, such a roller 1 with projections has a third
As shown in the figure, it can be passed through the shaft 12 and installed with the circumferential pitch slightly shifted so that the protrusions 2 do not conflict with each other in the direction of rotation, or the adjacent protrusions may be arranged offset instead of on a straight line. For example, since the sheet film is locked to one of the protrusions of the plurality of protruded rollers 1, the sheet film can be transported reliably.

In other words, since the phases of the protrusions are shifted in the axial direction, even if the film is curled after the development process, the rear end of the film will be locked to one of the plurality of protrusions 2 along the curl. This ensures reliable transportation.

Therefore, defects on the sheet film surface can be eliminated more than in the conventionally known method.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a sheet film conveying device,
FIG. 2 is a plan view of the protruding roller, and FIG. 3 is a diagram showing a state in which a plurality of protruding rollers are attached to the shaft at shifted positions. 1...Protrusion roller, 2...Protrusion, 3...Roller, 6...Guide.

Claims (1)

[Claims for Utility Model Registration] A sheet film storage container provided near a film discharge port for storing the discharged film in a substantially vertical direction; and a pair of rotating rollers for feeding the sheet film toward the sheet film storage container. a roller with protrusions, the roller having a plurality of protrusion rows in the circumferential direction of the roller, the axis of at least one of the pair of rotary rollers having a plurality of protrusion rows in a direction substantially parallel to the axial direction of the rotary roller; A plurality of are provided at intervals in the axial direction of the rotating roller, and a row of protrusions on the roller with protrusions and a row of protrusions on another adjacent roller with protrusions are arranged in the axial direction of the rotating roller. A sheet film conveying device characterized by being arranged out of phase so that they do not overlap.