DE1103272B - Device for the manufacture of screw sutures - Google Patents

Description

GERMAN

Facilities for the production of screw sutures, in which the tape is pre-bent by means of adjustable bending rollers and the tube to be formed on The outer circumference is held by radially adjustable rollers arranged in a so-called roller basket, are known. With such a roller cage you can indeed by radially adjusting the rollers tubes Manufacture different diameters, but the adjustment options are tight limits, so that only tubes with a relatively small tube diameter difference are produced with one and the same basket can be. Since screw sutures, however be made up to the largest dimensions, such a device with different Roll baskets, which can be exchanged as required, be equipped. Such roller baskets are very laborious and expensive. In addition, a lot of time is required for installation and removal.

According to the invention, a device is now proposed in which the adjustment range is enlarged the roller basket arrangement and thus the possibility of using pipes in a very wide range to be able to produce different diameters without changing the roller basket arrangement, given is.

According to the invention, the roles are in a portal-like, d. H. from two vertical and above by one horizontal traverse connected columns arranged in order to enlarge the diameter in the horizontal reference plane between the columns and the crossbeam, additional adjustable rollers if necessary load-bearing intermediate elements of various thicknesses can be used, with the three interacting Bending rollers vertical, the rollers arranged in the columns generally horizontal and the Rollers mounted in the crossbeam can be adjusted at a constant helix angle.

Fig. 1 shows a stand for the smallest pipe diameters, consisting of a box-shaped cross member 1 that is the same for all pipe diameters, the columns 2 and 2 α and the bending roller stand 9 with the bending rollers 11 and 11a. In the traverse, the roller axles 5 and 6 with the rollers R are mounted adjustably at a certain angular inclination by means of the screw spindle 5 α and 6 α. In the columns 2 and 2 α, the roller axles 3 and 4 are horizontally displaceable and also arranged to be adjustable by screw jacks 3 α and 4 α. The pair of bending rollers 11 can be raised and lowered vertically by the spindles 9 a (FIG. 6).

In FIGS. 1 to 5, the smallest and largest pipe diameters that can be produced with the stand arrangement shown are shown. It can be seen that with each arrangement means for manufacturing
of screw sutures

Applicant:

Friedrich Kocks,
ίο Düsseldorf, Berliner Allee 48

Karl-Hans State, Düsseldorf,
has been named as the inventor

in this way, considerable differences in diameter can be mastered. If the desired pipe diameter exceeds a certain amount, then, depending on the pipe diameter, intermediate elements 13, 14 , 15, 16 or 13 a, 14 a, 15 α, 16 α with a corresponding height according to FIGS. 2, 3, 4 and 5 are installed. In the present case wind z. B. even / when installing the large spacers 16 and 16 α only an additional pair of adjustable roller axles 7 and 8 is required. In these intermediate pieces 16 and 16 α, the rollers 7 and 8 are horizontally adjustable by means of screw spindles 7 α and 8 a.

All roller bearings 3 to 8 are designed so that they can be adjusted by means of the easily accessible screw spindles 3ß, 4a, la, 8a.

6 and 7 show a longitudinal section and a top view of a device for the largest pipe diameter, from which above all the bending roller arrangement can be seen. The bending rollers 11 and 11 α are arranged in a »special stand 9 and can be adjusted vertically by means of the spindle 9 α (in a manner not shown in detail) and by means of the spindle 10 in the direction of the pipe axis. This axial adjustment option is required to compensate for bands of different widths with large pipe diameters.

+5 because, for technical reasons of welding, the outer edge of the lower bending rollers 11 must have a certain distance "α" (Fig. 6) from the parting line of the strip edge. Since the length of the roller basket is always greater than the width of the sheet metal strip, but the Biegeso roll only as long as the largest bandwidth, two short rollers 12 are arranged on the expiring part of the roll stand, which are also α in the vertical direction by means of the spindle 12 are adjustable.

109 538/233

Claims (2)

Patent claims: 1. Device for the production of screw suturing pipes with rollers arranged in an approximately even distribution on the outer circumference of the pipe to be formed from a horizontally entering the device and an adjustable bending roller that interacts with a pair of these outer rollers and is arranged inside the pipe, all of which for adaptation to different pipe diameters Rollers are radially or approximately radially adjustable, characterized in that the rollers (3 to 8, 11, 11 a) in a portal-like stand, that is, of two vertical columns (2, 2a) connected at the top by a horizontal traverse (i) arranged and in the horizontal contact plane between the columns (2, 2a) and the traverse (i), if necessary, additional adjustable outer rollers (7, 8) supporting intermediate elements (13, 13 a, 14, 14 a, 15, 15 a, 16, 16 a) of different thicknesses can be used are, the three cooperating bending rollers (11, lla) vertical, which in the columns (2, 2 a) arranged rollers (3, 4, 7, 8) horizontally and the rollers (5, 6) mounted in the traverse (1) below adjustable at a constant helix angle are. 2. Device for producing screw sutures according to claim 1, characterized in that that the bending rollers (11 and lla) are stored in a special stand (9), the is adjustable in the direction of the pipe axis. Considered publications:
German patent application D 1866 VIII d / 21h (published on September 10, 1953); French Patent No. 1,187,817;
U.S. Patent No. 1,884,658. 1 sheet of drawings © 109 538/233 3.61