SK7971Y1 - Apparatus for drying the interior wetted surfaces of the glass blown semi-finished products - Google Patents

Abstract

The apparatus for drying the interior wetted surfaces of the glass blown semi-finished products consists of an inlet reduction (1) of the supply of the working medium flow into the distribution chamber (2) from where the working medium is directed to the dried inner surfaces of the glass blown semi-finished products (5) by the thin tubes (3). The ends of the tubes (3) are firmly attached to the base plate (6) which is connected by spacing rods (7) with the top plate (4) provided with openings for receiving and centering the glass blown semi-finished products (5) on the tubes (3). The working medium is heated air to a temperature in the range of 20 ø C to 80 ø C.

Description

The technical solution relates to the design of the device for drying of inner wetted surfaces by chemical plating in the process of glass blown blanks production.

The technical solution belongs generally to the glass industry.

BACKGROUND OF THE INVENTION

Various devices (different types of box driers) are known in the art in which chemically silvered glass blown blanks are dried. Semi-finished products dried in such dryers are placed on grates in multiple layers. These grates ensure that the spherical blanks are oriented downwards so that the liquid can flow freely. For drying, heated air is used, which is conveyed by air ducts to the diffusers usually located on the floor of the drying chambers. The air inlet situated in this way has no impact on the semi-finished products placed on the upper grates and therefore they are not blown by the heated air. Other solutions are known in which the air required for drying is directed and evenly distributed over the entire grate surface. However, even such solutions do not produce the expected results, as the problem of removing moisture from the inner plated surface of the blanks remains unresolved.

The essence of the technical solution

The aforementioned drawbacks of the prior art methods for drying glass blanks are overcome by a device for drying the inner wetted surfaces of glass blown blanks. It is used in the process of manufacturing glass blown blanks for drying internal surfaces wetted from chemical plating. The principle of the drying device is that heated air at a temperature of 20 ° C to 80 ° C is fed into a manifold chamber, from where it is distributed through thin tubes directly to the damp internal metallized walls. Due to the maximum contact with the moisture on the inner wall and the high gradient of the moisture concentration between the wet wall and the drying air, the moisture removal from the wall to the drying air is very intense. The high drying intensity is maintained by continuously discharging the saturated drying air and replacing it with new unsaturated drying air.

Separate inlet and outlet of drying air to and from the semi-finished product is provided by the way of placing the semi-finished products on the top plate with holes with a diameter of about 18 to 20 mm. The glass blanks are slid onto the drying air supply tube, the outlet of which is inside the glass blanks. Drying air then flows from this orifice, which washes the wet inner surface of the blanks, is saturated with moisture, and the saturated air is blown out through the annulus between the tube and the glass stem. The blowing air also speeds up the transport of water flowing from the inner wall of the workpiece.

The advantages of the device for drying the inner wetted surfaces of the glass blown blanks are evident from the external effects. In particular, the effects are that the time required to dry the chemically plated internal glass surfaces is several times shorter than the drying technologies used hitherto. The device does not require a closed drying chamber in the drying process and allows ergonomic handling of blanks during chemical plating.

BRIEF DESCRIPTION OF THE DRAWINGS

The apparatus for drying the inner wetted surfaces of glass blown blanks is illustrated in more detail in the accompanying drawings, which show the constructional solutions of the apparatus.

In FIG. 1 shows a longitudinal section of the device.

In FIG. 2 is a side view of the device.

The plan view of the device is shown in FIG. 3 and FIG. 4 is an axonometric view of the device. The apparatus for drying the inner wetted surfaces of the glass blown blanks shown in these drawings is presented to illustrate the method of drying and does not limit specific embodiments, particularly in relation to the type of glass blanks being dried.

EXAMPLES

An apparatus for drying the inner wetted surfaces of glass blown blanks is illustrated in FIG. 1 to FIG. 4. Device for drying inner wetted surfaces of blown glass half-finished2

SK 7971 rov1 consists of an input reduction 1 of the working medium supply leading to the distribution chamber 2, from where the working medium is distributed to the dried inner surfaces by thin tubes 3. The upper plate 4 is provided with openings for receiving and centering glass blown blanks 5. Lower ends of tubes 3 The plates 4 and 6 connect and define the spacer rods 7. The working medium is heated air, its temperature being in the range of 20 ° C to 80 ° C. .

The working medium enters the distribution chamber 2 by means of an inlet reducer 7, which can be placed at any point along the circumference of the chamber 2 and dimensioned according to the required drying capacity of the blanks.

The apparatus for drying the inner wetted surfaces of the glass blown blanks of FIG. 4 can also be used for drying various shapes of glass blanks 5 at the same time by arranging the glass blanks 5 ergonomically in several rows and columns on one common base plate 6.

Industrial usability

Said technical solution can be used in all processes of production of blown glass blanks or ornaments, in which the operation of chemical silver plating (metallization) of inner surface of blown glass blanks is also performed.

PROTECTION REQUIREMENTS

Claims (2)

Apparatus for drying the inner wetted surfaces of glass blown blanks, characterized in that it comprises an input reduction (1) of working medium supply leading to a distribution chamber (2) for distributing the working medium to the dried inner surfaces of glass blown blanks (5) by thin tubes. (3), wherein the lower ends of the tubes (3) are fixedly fixed in the base plate (6) which is connected by spacers (7) to the upper plate (4) provided with openings for receiving and centering glass blown blanks (5) slid onto the tubes (3). Device for drying the inner wetted surfaces of glass blown blanks according to claim 1, characterized in that the tubes (3) are arranged on one common base plate (6) in several rows and columns for simultaneously drying different types of glass blown blanks (5) . Device for drying the inner wetted surfaces of glass blown blanks according to claim 1, characterized in that the working medium is heated air to a temperature in the range of 20 ° C to 80 ° C. Device for drying the inner wetted surfaces of glass blown blanks according to claims 1, 2 and 3, characterized in that the inlet of the working medium supply reduction (1) entering the distributor chamber (2) is located at any point along the periphery of the distributor chamber (2). ) and is sized according to the required drying capacity of the glass blown blanks (5). 2 drawings