RU2457185C1 - Device for extrusion of hollow glass articles - Google Patents

Abstract

FIELD: process engineering.

SUBSTANCE: invention relates to production of construction materials, particularly, to production of hollow glass articles intended for glasing of transport facilities. Proposed device comprises male die and composite female die mounted on bed, eccentric and splitting mechanism. Besides, proposed device incorporates extra eccentric. Note here that both eccentrics are fitted at female die ends on opposite side of diagonal. Bed has supports arranged on opposite sides. Splitting mechanism mounted on supports is made up of two springs fitted on axle to engage with support and female die.

EFFECT: higher optical properties.

4 dwg

Description

The invention relates to the building materials industry, to glass production, in particular to the field of manufacturing hollow glassware for glazing various vehicles by molding.

A device for pressing hollow glassware containing a punch, a die, a throat ring with a recess, an annular plate and a gas-air cavity, the annular plate is made with a groove, is installed in the recess of the neck ring and is rigidly fixed along the outer edge, the gas-air cavity being formed by a groove and a molded ring in the zone of the end of glassware according to the author's certificate of the USSR No. 1717562, IPC ⁷ С03В 11/00, publ. 03/07/1992

A disadvantage of the known device is that it does not allow to obtain filters for airborne navigation lights (BANO) aircraft of the 5th generation. This is because the filters for the BANO of the 5th generation aircraft have a negative (inverse) deflection angle on some part of their surface, which does not allow extracting the pressed filter from the solid matrix.

Closest to the invention is a device for pressing hollow glassware containing a punch, a composite matrix mounted on the base, an eccentric and a detachable mechanism (Gladstein I.E., Ginzburg I.A. Forms for the production of glass products. M.: Light industry, 1966 p. 87-94).

A disadvantage of the known device is that the products obtained with its use have a characteristic defect for composite forms in the form of prints along the articulation line of the forms. In this case, the prints pass along the entire surface of the product in the form of a line passing through its central region. The quality of the filters obtained on the known device does not meet the requirements for them when using fifth-generation aircraft in the BANO for optical indicators.

The objective of the invention is to improve the quality of products by optical indicators.

To achieve the objective of the invention, a device for pressing glassware containing a punch, a composite matrix mounted on the base, an eccentric and a detachable mechanism, characterized in that the device is equipped with an additional eccentric, both eccentrics installed at the ends of the matrix on its opposite sides diagonally, the base is made with supports located on opposite sides, and the connector mechanism mounted on the base supports, made in the form of two springs located on the axis and contour ct one end with a support, and the other with a matrix.

The location of the two eccentrics in the ends of the matrix on its opposite sides diagonally and the execution of the connector mechanism mounted on the supports of the base, in the form of two springs located on the axis and in contact with one end with a support and the other with the matrix, allows for rapid movement of the matrix components relative to plane passing along the line of articulation of the matrix. This is especially important when opening the mold, since the glass product should not be in the mold for a long time due to hypothermia and cracking. This design of the form allows you to place the line of articulation of the matrix in the non-working area of the glass, in particular in the field of the filter, which goes into the seal when installing it in an airplane. Thus, the proposed device can significantly improve the quality of the filters according to optical indicators in comparison with the filters obtained using the known device.

Figure 1 shows the proposed device (matrix in the open position).

Figure 2 shows the proposed device (matrix in the closed position).

Figure 3 shows the position of the glassware relative to the punch after pressing.

Figure 4 shows glassware.

The device comprises a punch 1, a composite matrix 2 mounted on the base 3. At the ends of the composite matrix 2, eccentrics 4 are installed diagonally on its opposite sides. On the base 3 there are supports 5 located on opposite sides of the base 3, the connector mechanism is mounted on the supports 5 of the base in the form of two springs 6 located on the axis 7 and in contact with one end with a support 5, and the other with a composite matrix 2. Figure 1-2 shows holders 8, designed to rotate the eccentric 180 °. Figures 3-4 show glassware 9 and an articulation line 10 of a matrix on glassware.

The device operates as follows.

After pre-heating the mold kit in the case of manual production or after the mold kit is brought out to the operating thermal mode during automatic pressing, a portion of the molten glass is fed into the matrix, while the composite matrix is in the closed position (see Fig. 2) due to its constriction by eccentrics for 4 s by turning the holders 8. The portion of the molten glass is supplied with the raised position of the punch 1 (not shown in FIG. 2). After lowering the punch 1 into the composite matrix 2, the glassware 9 is pressed. Then the punch 1 is raised above the composite matrix 2. Using the holders 8, turn the eccentrics 4 to the position as shown in FIG. 1. In this case, under the action of the springs 6, the composite form 2 extends (see FIG. 1), the springs 6 move along the axis 7 mounted on the support 5 of the base 3. After this, the product is removed from the mold and sent for annealing. Figure 3-4 shows that on the working surface of the glass 9 there are no prints from the articulation line of the composite form 2, since the articulation line 10 of the composite form 2 is in the sealing area of the glass product 9.

Using the proposed device, a batch of light filters intended for use in the BANO of 5th generation aircraft, namely for the T-50 aircraft, was obtained. The resulting glass products fully satisfy the high requirements for 5th generation aircraft in terms of optical performance.

Information sources

1. USSR author's certificate No. 1717562, IPC ⁷ C03B 11/00, publ. 03/07/1992

2. Gladstein I.E., Ginzburg I.A. Molds for the production of glass products. M.: Light Industry, 1966, p. 87-94.

Claims (1)

A device for pressing glassware containing a punch, a composite matrix mounted on the base, an eccentric and a detachable mechanism, characterized in that the device is equipped with an additional eccentric, both eccentrics installed at the ends of the matrix on its opposite sides diagonally, the base is made with supports located on opposite sides, and the connector mechanism is mounted on the supports of the base, made in the form of two springs located on the axis and in contact with one end with a support and the other with a ma thrice.

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