SU1368091A1 - Method and apparatus for manufacturing bottle necks - Google Patents

Abstract

The invention relates to the processing of metals by pressure, preferably to the manufacture of cylinders. The aim of the invention is to increase the quality by increasing the strength of the end portion by increasing the wall thickness. The workpiece is installed in the machine spindle, the rollers are synchronously moved at an acute angle to the axis of rotation of the workpiece, the end and transition parts of the neck are rolled and the end portion is landed. Rolls are made with flanges and installed with the possibility of counter-rotation in their axial plane. The method and the device make it possible to forcibly influence the distribution of the wall thickness along the profile and to obtain the necks with the most rational thickening of the wall in the spherical one. and cylindrical parts x. 2 sec. f-ly, 2 ill.

Description

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The invention relates to the processing of metals by pressure, mainly to the manufacture of cylinders, and can be used in the engineering industry of manufacturing various profiles at the ends of hollow and solid blanks.

The purpose of the invention is to improve the quality by increasing the strength of the end portion by increasing the wall thickness.

Fig. 1 shows the beginning of the manufacturing process for the neck of the cylinders; Fig. 2 shows the end of the manufacturing process for the neck of the cylinders.

A method of manufacturing cylinders of cylinders with calibrated rollers synchronously moving at an acute angle to the axis of rotation of the billet includes rolling the end and transition sections, and after rolling the neck, the end portion of the container rolls out.

The device for making the bottlenecks contains a rotating spindle 1 installed on the machine and mounted on axes for rotation and simultaneous oncoming movement at an acute angle from the respective drives, rolls 2 and 3, made with flanges 4 on the opposite side from the spindle 1, and their axes installed with the possibility of counter-rotation in the i-cc axial plane.

Example. The workpiece 5 with the end heated to 1100-1200 ° C is fixed in the spindle 1. Rotating calibrated rollers 2 and 3, moveable at an acute angle to the longitudinal axis of the workpiece 5, bring the latter into rotation and deform, increasing it until the metal is filled. pharynx rolls.

After obtaining the necessary intermediate profile by applying force to the end of the billet by counter-rotating the rolls in their axial plane, the metal intended for the end and transition sections of the neck is simultaneously precipitated along the firing diameter to obtain the desired wall thickness. The degree of landing of the terminal, and transitional sections of variegates by the shortening of the workpiece.

In the manufacture of openings, pipes of dimensions 140x5 mm made of steel grade D are used, the work rolls have a maximum diameter along the profile of 270 mm, a barrel length of 150 mm, the rolls are made of C4 cast iron 18-36.

The deformation is performed when the axes of rotation of the rolls are in their initial position parallel to the axis of rotation of the workpiece and the angle of movement to the longitudinal axis of the workpiece is changed from 50 to 60.

I

With an angle of movement of the rolls to the workpiece 60 ° and crimping over a diameter of 50%, the original workpiece 475 mm long increases by 4.5% with a slight thickening of the wall along the profile.

The landing of the end part of the neck is performed by turning the roll axes by an angle of 15 °. After disembarking and receiving the finished neck with an outer diameter of the end portion of 37 mm

the length of the workpiece is shortened by

2.5% and the wall thickness increases to 14 mm.

Formula of invention

1. A method of manufacturing bottlenecks, including rolling them with calibrated rollers, moving simultaneously, at an acute angle to the axis of rotation, of the workpiece, forming the profile of the neck in the form of end and transition sections, characterized in that, in order to increase quality by increasing the end strength The area, due to the increase in wall thickness, is swelled, and the landing of its end portion is most important.

2. A device for the manufacture of bottlenecks containing a rotating spindle installed in the machine and mounted on axes with the possibility of rotation and simultaneous oncoming movement at an acute angle from the respective drives of the work rolls, characterized in that the work rolls are made with flanges on the end opposite to the spindle, and their axes are set with

the possibility of counter-rotation in their axial plane.

Phage.1

Claims (2)

Formula la inventions 30 1. A method of manufacturing the neck of the cylinder, including rolling them with calibrated rolls synchronously moving. at an acute angle to the axis 35 rotations, blanks, forming the neck profile in the form of end and transition sections, characterized in that, in order to improve the quality by increasing the strength of the end section by increasing the wall thickness, after the neck roll is rolled, its end section is disembarked. 2. Device for manufacturing 45 neck of cylinders, containing a rotating spindle installed in the machine and mounted on the axes with the possibility of rotation and synchronous oncoming movement at a sharp angle of 5 ° from the corresponding drives, work rolls, characterized in that the work rolls are made with flanges on the end opposite to the spindle, and their axes ₅₅ fitted with the possibility of counter-rotating in their axial plane.