SU25691A1 - Device for compacting curved laminated glass - Google Patents

Description

It is proposed to use presses for curved glass spraying, in which pressing is performed by a method that reduces pressing forces along the normals to the surface of the glass, to use curved mandrels with elastic pads to force air or steel strip adjacent to the mandrels and glass.

FIG. 1 of the schematic drawing shows a device for pressing a laminated glass of a curved shape; FIG. 2 - a modified form of the same; FIG. 3 is a variant of the above device.

The glass blank is placed in the bent mandrels 1-2 interconnected onto the elastic (rubber) press cushion 3, and from the outside it is fitted with the elastic press cushion 4 of the upper mandrel 2. Mandrels 1 and 2 with elastic cushions 3 and 4 laid on them The shape is adapted to the shape of the glass being pressed in order to transfer the pressing forces along the normal to the surface of the glass to be pressed.

In the modified form of the device according to the invention, the blank is laid flat on the mandrel 1 {fig. 2), on the surface of which a bend is imposed, respectively compressible and stretchable by forces B and B, steel strip 2. Another strip 3 also fits the blank from the outlet side. One end of the strips can be fixed in place, and only the other is subjected to the action of B. If necessary, the strips 1 and 3 are heated, this can be done by one of the known methods (Fig. 2).

A variant of the device consists in the joint use of an elastic chamber 1 and a flexible steel strip 2, between which pressable glass is placed, where gas or liquid is pumped into chamber 1 at a corresponding temperature, and steel strip 2 is subjected to the force B.

The subject matter of the invention.

1. A device for pressing a multi-layered curved glass with the use of elastic pressing pads, distinguished by the fact that, in order to transfer the pressing forces along the normal to the surface of the pressed glass.

The mandrels 1 and 2 (Fig. 2) with elastic cushions placed on them are shaped to fit the shape of the glass being pressed.

2. A modified form of execution of the press mentioned in p. 1 using, instead of elastic pads, flexible, respectively compressible and expandable steel strips, one of which 2 (Fig. 3) is freely superimposed on the mandrel 1, and the other strip 3 fits the blank with convex side.

3. A variant of the device indicated in clauses 1 and 2, characterized by the joint use of an elastic chamber and a flexible strip 2 (Fig. 4).

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