US1967788A

US1967788A - Apparatus for producing profile metal articles

Info

Publication number: US1967788A
Application number: US506965A
Authority: US
Inventors: Seiferth Hugo
Original assignee: Individual
Current assignee: Individual
Priority date: 1930-02-01
Filing date: 1931-01-06
Publication date: 1934-07-24
Anticipated expiration: 1951-07-24

Description

July 24, 1934. I SEIFERTH 1,967,788

APPARATUS FOR PRODUC I NG PROFI LE METAL ART I CLE 5 Filed Jan 6. 1931 5y. 1 x a W1 Q Q r x L I y /4 "07/14 w atented duly @934 pairs was APPARATUS iron rnonUorNG PROFILE rm'rar. narrows Hugo Seller-til, iDusseldorf-Oberkassei, Germany Application January 6, 1931, Serial No. 506,965 lin Germany February ii, 1930 2 Claims. (on. 80-49) The invention relates to apparatus m producing profile metal articles and more especially metal bars having sharply projecting ribs of conp siderable height according to my prior Patent No. 1,921,486 in which the work piece to which the desired profile is to be given is guided between a roller and a table which wholly or partially comprises the said profile. It has been found that the use in the rolling table of a section of table which bears the complete profile is in many cases very expensive, particularly when the distance apart on the work of the transverse portions of the profile only is altered and when the dimensions differ. Furthermore, it is advantageous for other reasons to improve the table.

According to the invention that part of the rolling table which is formed with the profile is simplified and can be employed for various purposes, if the section of table is sub-divided in such 29 manner that single interchangeable die portions are formed which can be fitted into the section of table, but vary in dimensions.

v ()ne construction of apparatus according to the invention is illustrated by way of example in the accompanying drawing.

Figure 1 shows the finished product in longitudinal section.

Figure 2 is acorresponding plan view,

Figure 3 is a longitudinal section through the rolling device the table of which is provided with interchangeable die portions.

Figure a shows the section or table with the insertions in plan, and

Figure 5 and 6 are cross-sections taken through the table showing details of the securing means.

The work a is formed with transverse projections b, c, d, e. f. g, f all of equal height (Figs. 1 and 2). If a duplicate is required, for example,

it diflering from the design shown in the drawing, only in that the projections are of a different height or in that the projections c and g are at a difierent angle, it would be necessary to provide another table insertion a: were there no provision of interchangeable die, portions h, i, k, I, m, n, 0, these insertions enabling changes to be made in the product without involving expensive modincations of the machine, simply by the substitution of the die portions one for another. In Fig.

3 the work piece a which is supported by the rollers w is pressed by the roll 8 on the rolling table with its die portions and into the transverse grooves of the latter. 0n the underside or the rolling table, which may be driven in a longitudinal direction by a'gear wheel u, the counterpressure roll t and the supporting rollers v and m are arranged. The insertions are held secure longitudinally by wedges, it being sometimes sufllcient to provide a wedge 12, on one side only, the

do wedge pressing the die portions against a projection provided on the opposite side. This wedge p is held securely in position by headed screws q. The insertions are extended outwards laterally (Figures 5 and 6) so that they have a trapezoidal section which fits into the dovetail-section of the table insertion :1: and prevents their rising. By means of clamping members r (Figure 6), the longitudinal sides of the -die portions may be pressed tightly upon the base of the table insertion :c, a resilient support being interposed, if necessary.

In particular cases, such as when the projections are undercut, it may be advantageous to dispense with special means for fixing the die portions, particularly in the transverse direction. The work will then be removed from the table insertion with the correspondingly sub-divided die portions thereon, and the die portions be removed from the work separately.

What I claim and desire to secure by Letters Patent in the United States is:

1. A device for the production of profile metal bars having sharply projecting transverse ribs of considerable height consisting of a pressure roll, a counter-pressure roll, a rolling table reciprocating between the said rolls, a. longitudinal recess in the table, a die insertion in the said recess, a longitudinal recess in the said insertion having a dovetail section, interchangeable die portions in the said recess of the insertion which are partly provided with transverse grooves and have a trapezoidal section, wedges at the end of the die insertions for fastening the die portions, screws for securing the wedges, and supporting rollers for the die, table.

2. A device for the production of profile metal bars having sharply projecting transverse ribs of considerable height, consisting of a pressure roll, a counter-pressure roll, a rolling table reciprocating between the said rolls, a longitudinal recess in the table, a die insertion in the said recess, a longitudinal recess in the said insertion having an undercut rectang'ular section, interchangeable die portions of trapezoidal section which are arranged in the said recess of the table insertion and partly provided with transverse grooves, clamping members at the sides of the die portions, wedges at the ends of the recess 01 the table insertion for securing'the die portions in the longitudinal direction, screws for fastening the said wedges, and supporting rollers for the die table.

HUGO SEIFERTH.