SU149059A1 - Movie Transporter - Google Patents

Description

In the known chain conveyors for belt materials, claw clamps are rigidly connected to the pads moving along the guides. The trajectory of movement of the clamp of this design is determined by the location of the guides, in connection with which the material being transported is stretched. In view of this, the known conveyors cannot be used to move the dried film of cinema photographs, since in this case the tape should only be tensioned without changing its linear dimensions.

The proposed conveyor for cinema photographs differs from those known in that the claw clamps are mounted on movable pads with springs, so that the conveyed tape is tightened without changing its linear dimensions.

FIG. 1 shows the proposed conveyor in cross section; in fig. 2 - claw clamps mounted on moving shoes with springs.

The control of the clamps with the aid of run-in lanes is carried out only at the points of entry and exit of the conveyed belt to the conveyor. In all other positions, i.e., all the way of the conveyor, drying. The tape is securely held by claw clamps over the edges (by means of springs and wedging the edges of the tape), and is pulled in the transverse direction under the influence of stretching springs put the bodies of the klups in their extreme positions.

The conveyor can move both in a straight line along the guides, and around the circumference, the bend turning devices in the form of asterisks. This makes it possible to carry out with it the translational movement of the tape being dried, both in one plane and in the form of a multi-way loop path with its being held in a fixed flat position. Thus, any required variants of the path and belt movement can be implemented: in the form of vertical or horizontal loops, if necessary - bypassing movements, putting on combined circuits, placing an inaccurate mechanism in close proximity to the roll and winding device, or at some distance, at a common mark with it, million at different, etc. This flexibility in the layout of the proposed tract provides, in particular, the possibility of fitting into the dimensions of the existing drying corridors active emulsion-watering machines, which is very important in terms of the modernization of the latter.

Another feature of the drying tract is that the film tape being dried never touches any rollers, drums and other surfaces, either on the emulsion or on the reverse side. This completely protects the dried material from any surface damage, in the form of "fractions, scratches, etc." In addition, this feature allows the proposed path to be used for simultaneous two-sided drying of photographic films and photographic papers watered with emulsion on both sides, such as , X-ray film, coil film, phototechnical films, photo camera, etc. Finally, the ability to rotate the proposed path both in the emulsified side of the lens, and in the reverse, allows it to be continuously an experimental multiple watering in one run (colored multi-layer film and photo paper, watering with soil, etc.).

The pitch of the lugs and the sizes of the turning devices with a multi-way loop version can be chosen in any constructively feasible limits. If necessary, a multi-link drive can always be used. The fixed, in any desired variant, the location of the path and the always flat state of the tape being dried allow using the proposed path to use any modern methods of intensive drying, while at the same time ensuring perfect uniformity of the drying speed and the absence of deformations in the form of bends, creases, etc. P.

The possibility of using claw clamps is fundamentally based on the fact that when watering an emulsion on a substrate, the edges of the latter, 15-20 mm wide on both sides, remain non-cast emulsion and are subsequently cut off. This, by the way, is currently used in order to hang off pulling weights on the edges of the lower part of the scallops.

Subject invention

A conveyor for film photographs mounted in a drying device and equipped with claw clamps, characterized in that, in order to stretch the conveyed belt, the clamps are mounted on movable pads with springs

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