SU1454788A1 - Method of producing hollow glass articles - Google Patents

Abstract

The invention relates to the technology of manufacturing hollow spherical glass products, in particular hollow balls, and can be used in the glass and medical industry, as well as in instrument making. The purpose of the invention is to simplify the process, improve the quality and reduce the labor intensity in the manufacture of balls. The method of making hollow glass articles is carried out by re-shaping the heated tubular billet between the two half-molds. The reshaping of the tubular billet was carried out by rolling in the ends of it alternately by rotating the semi-molds, the working diameter of which was 1 / 15-1 / 20 part larger than the diameter of the tubular billet. To half molds apply pressure. Next, the resulting blank is rolled out in the annular groove of the rotating tool. 5 -il. (L

Description

FIG.

This invention relates to a process for the manufacture of hollow articles having the form of a body of rotation from glass, in particular hollow glass NN balls, and can be used in the glass and medical industry, as well as in instrument making.

The purpose of the invention is to simplify the process, improve the quality and reduce the labor intensity in the manufacture of balls.

FIG. 1 shows a device | for implementing the proposed method, the 1st step of reforming a tubular billet; in fig. 2 - the same, the 2nd stage of reforming the tubular billet; in fig. 3 - the same, the third stage of reforming the tubular billet; in fig. j4 is the same, the 1st stage of rolling out the ballpoint diametrm 21.3 MMJ that is heated and the temperature of the tubular billet is brought to softening temperature

 glass equal to. Rotate the left half of the form 1, leaving the right fixed, then rotate the right half of the form 1, leaving the left fixed. When rotating at 60 rpm

JO each half-form is given a pressurej equal to 2.3 kgf. With the start of rotation, each half-form under the pressure applied to it begins to deform the ends of the tubular billet and take the shape of a sphere. As the half-form rotates, the ends of the tubular billet are closed and it takes the form of a sphere (Fig. 3). After that, the resulting spherical billet is sent to

A different workpiece in the annular groove of the turn-20 annular groove 4 with a radius of 1 mm spacing device i in FIG. 5 and a depth of 15 mm of the roll device 3, which is set to reverse rotation at a speed of 30 rpm, Sha | the same, 2- th stage rolling ball 3aroTOBkH,

A device for implementing the proposed method consists of pbforms 25 1 connected to a drive and a pressure device (not shown) and placed in a cylindrical cavity 2 of the roll device 3, which has

An annular groove 4, made in the form of a 30th blank, finally finishes the half of the axial section of the product, its mass is leveled, with-: The inner surface of the annular section for 4 has bevels 5 ,. rolling billet-shaped billet, rotating in an annular groove 4 and also in a softened state, gradually takes the form of a groove and becomes exactly a spherical shape, while its walls in the place of the clamping of the ends of the pipebinder uniform in thickness . For: a good soldering of the places where the tube closes when the sphere of experiment IV is formed. -r --- juDdnriH 1; f ": pb1 EXP-

; device 3; Tubular billet-dd.

| KU b of glass glass bin QMtfamainT jta-yfrrtr vmn "rr

The cu 6 of glass is placed between the half-molds 1 in such a way that its ends enter the half-molds 1, the thickening of the half-forms 1 with a working diameter exceeding 1 / 15-1 / 20 of the diameter of the tubular billet, ensures its ends in half-molds 1. At the same time, the tubular billet is securely clamped with mevdu half-molds 1. When the diameter of the half-molds exceeds the limits of the decree of the given interval, a reliable fixing of the blank between the half-molds is not ensured.

The method is implemented in the following way.

To obtain a hollow ball, for example, with a diameter of 20 mm, a billet is cut from a glass tube with a diameter of 20 ± to 15 mm and a wall thickness of 0.8 ± to L 5 mm, the length of which is equal to half the ball's circumference 31.3 mm. The resulting billet 6 1sleep between half-molds 1 with the workload. After the ball has been molded, it is cooled to 130 ° C and unloaded from the device,

40 The proposed method makes it possible to manufacture products that have the form of rotation bodies of various profiles with both closed and open volumes of glass tubes, as well as non-hollow products of whole glass drafts.

Claims (1)

Invention Formula 5Q A method of manufacturing hollow glass articles by reforming a heated tubular billet into two half-molds, characterized in that, in order to simplify the process55 of quality improvement and reduce labor intensity in the manufacture of balls, the tubular billet is re-formed by rolling in its ends by alternately rotating half-molds. diameters 21.3 MMJ which are heated and the temperature of the tubular billet is brought to softening temperature glass equal to. Rotate the left half of the form 1, leaving the right fixed, then rotate the right half of the form 1, leaving the left fixed. When rotating at 60 rpm each half-form is given a pressurej equal to 2.3 kgf. With the start of rotation, each half-form under the pressure applied to it begins to deform the ends of the tubular billet and take the shape of a sphere. As the half-form rotates, the ends of the tubular billet are closed and it takes the form of a sphere (Fig. 3). After that, the resulting spherical billet is sent to an annular groove 4 with a radius of 1 mm and a depth of 15 mm of the rolling device 3, which is given a reverse rotation at a speed of 30 rpm, a Shacolz groove 4 with a radius of 1 mm and a depth of 15 mm of the rolling device 3, which is set to the reverse rotation at a speed of 30 rev / minutes, the billet of the billet is finally melted, their mass is leveled, Similar to the billet, rotating in the annular groove 4 and also in the softened state, gradually acquires the shape of the groove and becomes exactly spherical in shape, with its walls at the closing point of the ends of the tubular billet finally melted, their mass leveled when found uniformity in thickness. For: a good soldering of the places where the tube closes when the sphere of the experiment is r --- juDdnriH 1; f ": p1 EXP- The length of the tubular The length of the tubular is specified  rr blanks. After the ball has been molded, it is cooled to 130 ° C and unloaded from the device, 40 The proposed method makes it possible to manufacture products that have the form of rotation bodies of various profiles with both closed and open volumes of glass tubes, as well as non-hollow products of whole glass drafts. Invention Formula 5Q A method of manufacturing hollow glass articles by reforming a heated tubular billet into two half-molds, characterized in that, in order to simplify the process55 of quality improvement and reduce labor intensity in the manufacture of balls, the tubular billet is re-formed by rolling in its ends by alternately rotating half-molds. 31454788 the working diameter of which is 1/5 1/20 with the subsequent rolling in the ring part is larger than the diameter of the tubular billet, to which the pressure groove of the rotating tool is applied. curing with subsequent rolling the slot groove of the rotating tool. I U //// 777A S f t G Shig.l (In /////// A Shig.5.