JPS5929529B2 - How to supply glass seed mass - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to molding carried out in the production of glassware, and particularly to a method for supplying a glass seed mass into a mold.

In the process of continuously manufacturing glassware, the supply device that supplies the glass melt obtained in the melting furnace to the molding machine as a glass seed mass with an appropriate viscosity and amount suitable for molding is an installation of the melting furnace. It is placed at the outlet or connected to the outlet.

In this supply device, the vitreous melt flowing out from the supply port is continuously sheared into fixed quantities at regular time intervals to form a glass seed mass, and the molten glass is directly or passed through the supply pipe and placed in the mold below or below the supply opening of the pipe. is falling.

In this method of supplying the glass seed mass, it is difficult to avoid defects in the product due to the glass seed mass falling into the mold not occupying an appropriate position.

FIGS. 1 and 2 show the position of the glass seed mass inside the mold when using this method, for example, using a sludge.

In both figures, the vitreous melt flowing out from the vitreous melt supply port 1 is continuously cut by the shearing blade 2.

The cut mass 3 passes through the supply channel 14 or 24 and heads downward.

When the table 6 placed on the molding mold 5 and moving temporarily stops below the drop opening 141 of the supply canister, this quantitative mass falls into the mold and becomes a glass seed mass 7.

Next, the table is started again and the mold is moved to the pressing or blowing processing position.

Here, the vitreous melt supply, shearing, and table stop/start system mechanisms operate in conjunction with each other to automatically and continuously supply the vitreous seed mass into the mold.

However, with this method, there is a distance between the position where the molten vitreous is cut and the stop position of the mold, and especially when molding glassware whose opening area is large compared to the height, the glass seeds are removed in the mold. It is difficult to get the mass into the proper position.

For example, the falling position may be irregular, the posture may be tilted, the cut mark may be tilted due to impact, or directionality may be lost.

As a result, the glassware products become defective and of low quality, reducing the productivity of good products.

The present invention is intended to eliminate such drawbacks, namely, in forming a glassware by guiding the falling glass units that are automatically cut from the vitreous melt through a supply pipe into a mold as a glass seed mass. A method for supplying glass seed lumps, characterized in that a guide which can be raised and lowered to guide the seed lumps into the mold at a desired position is disposed below the supply pipe when the glass seed lump takes a stop position below the supply opening of the supply pipe. be.

Accordingly, the present invention differs from the method described with reference to FIGS. 1 or 2 in that a defined guide is placed between the feed and the mold.

This guide has a guide hole diameter suitable for the glassware to be molded, is cylindrical and made of metal or an alternative material, and has an enlarged upper opening edge to receive the glass unit cut from the vitreous melt. without any hindrance.

The guide is also placed above the mold so as not to touch the mold while the table on which the mold is placed is moving, but when the glass seed mass is placed in the mold, the table is stopped. Immediately after, it descends to a close distance to the inner surface of the mold.

At this position, when the mass passes through the guide and is accommodated as a glass seed mass in the mold, the guide rises to avoid overheated welding by the glass seed mass, or to avoid solidification of the surface of the glass seed mass. prevent.

The guide may be internally hollow or made of special materials to avoid overheating, or may be provided with cooling tubes on its outer surface.

The raising and lowering movement of the guide is facilitated by an air cylinder or hydraulic cylinder or other power or linkage connected to an operating timer of the molding device.

By using such a guide, the glass seed mass can be continuously fed into the mold in a proper position and shape in accordance with the molding operation, and the product yield can be improved.

The cross-sectional views of FIGS. 3 and 4A and 4B show a part of the supply device used in the embodiment of the present invention.

A is shown at the time when the vitreous unit body 3 is cut from the vitreous melt, and father's day is shown at the time when the vitreous seed mass 7 is placed in the mold. Equal to the device shown in Figure 2,
All the numbers attached to the extraction lines are used synonymously and their explanation will be omitted.

A guide 8 placed below the supply gutter allows the glass seed mass to enter the mold to a permissible range when the mold is stopped together with the table, and to control the position and shape of the glass seed mass inside the mold when it falls from the supply gutter and takes its position. is regulated.

The vitreous seed mass, which is fixed in a good shape in the mold after passing through the guide vertically in the correct position, is said to be fed according to the mold dimensions. has nothing to do with it.

Before the table moves again, the mold (forming mold) retreats to a predetermined position above.

The guide can be moved back and forth within the mold by, for example, attaching an arm 91 for gripping the guide to one side of a support body 92, and attaching the other side to a partition wall 94 that moves up and down in response to increases and decreases in fluid pressure within a box 93, and controlling the feeding direction and flow rate of the fluid. It may be mounted on a lift 9 of variable type.

After the guide has been raised, the table is started again and the mold is brought to the next stage, for example the pressing or blowing position.

[Brief explanation of drawings]

Figures 1 and 2 are conventional, Figures 3 and 4 are 4 each.
2 is a sectional view showing a part of the feeding device used in the glass seed mass feeding method of the present invention. In Figures 3 and 4, 34, 44...supply, total...glass unit, 6...molding mold,
7... Glass seed mass, 8... Guide.

Claims (1)

[Claims] 1. When the glass units that are automatically cut from the vitreous melt and fall are guided into the mold through the supply pipe and molded into glassware as a glass seed mass, the mold stops at a position below the supply opening of the supply pipe. A method for supplying a glass seed mass, characterized in that a guide which can be raised and lowered to guide the seed mass into a mold at a desired position is placed below the supply tube.