SU544934A1 - Tape mechanism for drying paths of watering machines - Google Patents

Description

The invention relates to photographic methods and processes, in particular to the field of sputtering of photosensitive layers on a substrate.

Processing devices are known, for example, for vacuum drying of photographic emulsified layers, comprising sluice vacuum chambers for feeding and receiving the substrate 1.

Belt mechanisms for watering machines are known, which contain a number of support rollers, along which rows of rollers of shorter length are placed symmetrically about their center, and a source of reduced pressure 2.

However, in these devices, due to the one-sided moistening of the material with its subsequent drying, a curvature of the edges of the material in the cross section, a room of the edges of the material and its breakage occurs.

In order to prevent the curvature of the edges and wrinkles of the material being processed, the smaller roller rollers are installed in boxes connected to a source of lower pressure, and the roller rollers of a smaller length of one row are placed at an angle of less than 180 ° to the axis of the rollers. another row, symmetrically arranged rows of rollers of shorter length are placed at an acute angle to each other.

FIG. 1 shows the device in a nlan; in fig. 2 - supporting roller

with a view of a series of rollers of shorter length, transverse section; in fig. 3 - section of the tape drive mechanism with the arrangement of the axes of the rollers of a smaller length of one row at an angle to the axes of the rollers of the second row, the plan; on

FIG. 4 - a section of the tape drive mechanism with the arrangement of rows of rollers of a shorter node length with an acute angle to each other, plan. The hover mechanism consists of a row

Oior rollers 1, along which rows of rollers 2 of shorter length are located, mounted on supports 3 in ducts 4, connected to a source of pressure. Tape mechanism works as follows.

During processing, material 5 moves along support rollers 1 and along rollers 2 of shorter length. The processing of a material involves the transfer of fluid layers onto it from

the side opposite the side supported by the rollers 1, 2, and then the drying of the material.

The material to be processed 5 is pressed against the rollers 2 by a minimum of the difference in pressure from the side opposite the rollers.

and the pressure inside the ducts, preventing the edges of the material from being separated from the support rollers. In addition, the material pressed against the rollers 2 of shorter length acquires a wave-like shape, which increases the rigidity of the material in cross section and thus prevents the edges of the material from being torn off from the support rollers 1.

The installation of the axes of the rollers 2 of a shorter length of one row at an angle of less than 180 ° to the axes of the rollers of the second row from the incident side of the material being processed creates forces during its movement along it that stretch the material in the direction opposite to its movement and exclude a small thickness of sag Inters between the rows of rollers, eliminating creases and breaks in the material.

When the symmetric rows of rollers of two smaller lengths are placed at an acute angle, the small material does not sag between the rows of rollers.

Claims (2)

1. Tape mechanism for drying paths of watering machines, containing a number of support rollers along which rows of rollers of shorter length are placed symmetrically about their midpoints and a source of reduced pressure are distinguished by ice the fact that, for the purpose of predisposition, curvature of edges and wrinkles of the material being processed, a series of rollers of smaller length are installed in ducts connected to a source of applied pressure, and the axes of rollers are smaller the lengths of one row from the incident side of the material being processed are placed at an angle less than 180 ° to the axis of the rollers of the other row. 2. Tape mechanism according to p. 1, about one and a half, that the symmetrically arranged rows of rollers of shorter length are degraded at an acute angle to each other. Sources of information, taken into account in the examination: 1.Avt. St. No. 176183, cl. G 03c 1/74, 19G5. 2. The patent of Great Britain No. 1389492, cl. From 2, 1975. rrm / sh  : I inT GESHCH rrrn and Je mrTTrnn-ii-nr EI fTTrtl Mi J I II jl rrr-rp ic w: D-.1 ± L zi Trfi M jj nTirnpT 4: J - 4-yi4