SU1254426A2 - Device for copying relief record on thermoplastic medium by stamping method - Google Patents

Abstract

The invention relates to the field of accumulation of information and allows to improve the quality of copying. A device for copying a relief recording onto a thermoplastic carrier by embossing has a heated shaft 1 and a hollow support shaft 2 with an elastic working surface 3. A cylindrical spring 4 is installed in the inner cavity of shaft 2, coiled into a ring. The length of the cylindrical generatrix of the spring 4 is equal to the length of the working part of the shaft 2. Through the longitudinal 5 and lateral 6 holes in the shaft axis 2, its cavity is connected to the pressure reducer 7 and to the overpressure line 8. The invention is additional to auth.St.№ 1151919. 2 Il. U tc yi 4 L 35 M

Description

I1254426

The invention relates to the accumulation of information, namely to devices for thermoplastic recording and coirting.

The purpose of the invention is to improve the quality of copying.

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Fig, 1 is a diagram of the proposed device; in fig. 2 is a section A-A in FIG. one.

A device for copying a relief recording onto a thermoplastic carrier contains a heated shaft 1, a hollow support shaft 2 with an elastic working surface 3, in the internal cavity of which, in contact with the internal working surface 3 of shaft 2, a coil spring 4 is installed, coiled into a ring. The length of the cylindrical generatrix of the spring 4 is equal to the length of the working part of the support shaft 2. The cavity of the npi-shim roller 2 is connected via longitudinal 5 and side 6 holes in the axis of the shaft 2 to the pressure reducer 7 and the pressure line 8.

Before starting, the shaft 1 is turned on, heated to a temperature of 15-20 ° C above the glass transition temperature of the thermoplastic carrier layer, then into the hollow support shaft 2 with an elastic working surface 3 from the main line 8 of the overpressure 6 through the pressure reducer 7 through the longitudinal pressure 5 and the radial 6 the holes supply the required embossing pressure, with the cylindrical

spring 4, coiled, fold

an elastic working surface 3 of the roller 2, which ensures a constant contact between the surface of the heated shaft 1 and the hollow support shaft 2. While giving the heated shaft 1 rotation, for example, using retaining rollers interacting with the cylindrical surface of the shaft 1 (not shown), both contacting shafts 1 and 2 begin to rotate. At this time, a composition of the recording layers of the photothermoplastic matrix and the thermoplastic carrier, which are folded together, is passed between them and, as a result, instead of the contact of the shafts 1 and 2, there is a mechanical transfer of the microrelief from the matrix to the softened carrier layer.

Claims (1)

Invention Formula A device for copying a relief recording onto a thermoplastic carrier by embossing using an aut. St. No. 1151919, characterized by the fact that, in order to ensure copy quality, it additionally has a cylindrical spring placed in the internal cavity of the support shaft in contact with its internal elastic working surface, while the length of the chassis is equal to the length of the working part support shaft. FIG. 2 Compiled by V. Aksenov Editor L. Pchelinska Tehred M.Hodanich Proofreader T. Kolb Order 4717/50 Circulation 436Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, Projecto st., 4.