SU1558880A1 - Parison mould to sectional-type automatic machine - Google Patents

Abstract

The invention relates to the glass industry, in particular to the production of lightweight bottles on sectional glass-forming machines. The purpose of the invention is to reduce the weight of the product and uniform distribution of the glass. The draft form for a sectional type machine contains an internal cavity in the form of a body of revolution consisting of a section of variable cross section. 1 il.

Description

(21) 4331586 / 23-33

(22) 10/19/87

(46) (71)

04/23/90. Bul Number 15

Gusevsky branch of the State Research Institute of Glass

(72) V.N.Mironov, S.N.Ukhov, Yu.P. Burlakov, N.V.Kolyubaev, Yu.D.D. Bakhvalov, V.I.Galkin, V.M.Smolin, S.K.Pchel kov iv.F.Smirnov (53) 666.1.031 (088.8) (56) USSR Author's Certificate No. 975598, cl. From 03 to 9/24, 1982. USSR Copyright Certificate No. 1030322, cl. From 03 to 9/24, 1983.

(54) BLACK FOR AUTOMATED SECTION TYPE

(57) The invention relates to the glass industry, in particular to the production of lightweight bottles on sectional glass-forming machines. The purpose of the invention is to reduce the weight of the product and uniform distribution of glass. The draft form for a sectional type machine contains an internal cavity in the VIDR of the body of revolution consisting of a section of variable cross section. 1 il.

The invention relates to the glass industry and is intended for the production of sectional type lightweight bottles of various assortment.

The purpose of the invention is to reduce the mass of products and uniform distribution of glass.

The drawing shows the finished glassware.

A draft form for a sectional type machine is intended for the manufacture of lightweight bottles, for example bottles for Pepsi-Cola. Her profile is determined by the equation

d4 D, - a + kHj.

First, the diameters of the cross section of the profile of the cavity are found, and Hb varies from 0 to H (height of the product). The height of the internal cavity of the draft form is determined from the equation h - cH, h (0.85 0, 83) N, where h is the height of the internal cavity of the draft form, mm; H - the height of the finished product, mm; a, k, and c are coefficients depending on the capacity, the diameter of the height, and the type of the throat, which lie within the limits: a 0.5–0.8; k 0.046-0.048; from 0.85-0.83; D, - diameter of the throat part of the finished glassware} Rt, RJ, RJ and R - radii of the finished product, mm.

Example. Find the diameter of the rough form d0 on the connecting line of the throat ring and the rough form: d0 25.0 mm, Df 25.5 -, the diameter is below the throat, and 0.5 and k 0.046 are the coefficients for this type of ich.

The resulting diameter of the rough form on the joint line is plotted on the center line. The diameter R of the lower part of the rough form on the pin of the connector with the pallet is slowed down: d 34.7 mm,

SP

ate

00

00 00

where a and k are coefficients, remain the same.

H 210 according to GOST excluding throat height. The height of the rough form is determined by h сН 195 mm excluding the height of the throat in the throat ring, where c is the coefficient depending on the product, H is the height according to GOST. We postpone the found height of the rough form on the center line, build the obtained diameter d in the lower part, connect the found points d, and df, we get the profile of the inner cavity of the rough form.

When the glass is pressed in the rough form and the further design of the rough blank (slug), the contact time of the glass with the molds is reduced, and during the secondary heating when the slurry is transferred from the rough to the final shape, temperatures are equalized along the entire length of the rough blank. Due to the uniform temperature during the final blowing of the finished product, the viscosity of the glass is identical over the entire area of the product.

Thus, the redistribution of glass from the throat part of the product to its bottom part takes place, thus avoiding the appearance of a product (local wall thinning) in the bottom part and thereby ensuring a higher operational reliability of the glassware during operation.

The manufacture of the internal cavity of the rough form, which has the profile described by the indicated equations,

0

It is possible to obtain lightweight products of various assortment and capacity with a uniform distribution of the stack-1-la through the body of the product, and the mass of the products is reduced by 30-40% without deteriorating the strength characteristics.

Claims (1)

Invention Formula A draft form for a sectional type automatic machine for making glassware, having an internal working cavity in the form of a rotational body of variable cross section, characterized in that, in order to reduce the mass of products and to evenly distribute the glass, the internal cavity of the form has the profile described by the equations d, D, and + kH. CH, where d; - diameter of the cross section of the internal cavity of the rough form, mm-, D is the diameter of the throat part of the finished glass piece, mm a, k, c are coefficients depending on capacity, diameter, height and type of throat, lying within: and 0.5-0.8, k 0,046-0,048, from 0.85-0.83; H; - current section height of the internal cavity of the rough form, mm; h - the height of the internal cavity of the draft form, mm; H - the height of the finished glass, mm.