DE597253C - Device for finishing wood sleeper screws by hot rolling - Google Patents

Device for finishing wood sleeper screws by hot rolling

Info

Publication number
DE597253C
DE597253C DEV29107D DEV0029107D DE597253C DE 597253 C DE597253 C DE 597253C DE V29107 D DEV29107 D DE V29107D DE V0029107 D DEV0029107 D DE V0029107D DE 597253 C DE597253 C DE 597253C
Authority
DE
Germany
Prior art keywords
rolling
hot rolling
sleeper screws
finishing wood
wood sleeper
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DEV29107D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vereinigte Stahlwerke AG
Original Assignee
Vereinigte Stahlwerke AG
Publication date
Priority to DEV29107D priority Critical patent/DE597253C/en
Application granted granted Critical
Publication of DE597253C publication Critical patent/DE597253C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H3/00—Making helical bodies or bodies having parts of helical shape
    • B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
    • B21H3/04—Making by means of profiled-rolls or die rolls

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)

Description

Einrichtung zum Fertigstellen von Holzschwellenschrauben durch Warmwalzen Es sind Gesenke bekannt, die zum Anstauchen von Schraubenköpfen an Stabeisenstücke auf warmem Wege dienen. Beim Arbeiten mit diesen Gesenken ist nicht zu vermeiden, daß, durch die Trennfuge der Gesenke bedingt, ein leichter Grat unterhalb des angestauchten Schraubenkopfes parallel zum Schraubenschaft -entsteht.Device for finishing wood sleeper screws by hot rolling There are known dies which are used for upsetting screw heads on pieces of bar iron to serve warmly. When working with these dies, one cannot avoid that, due to the parting line of the dies, a slight ridge below the upset Screw head parallel to the screw shaft.

Während bisher diese Gratbildungen in einem besonderen Arbeitsgang entfernt wurden, was umständlich und teuer war, schlägt die Erfindung vor, die Beseitigung des Grates in den normalen weiteren Fertigungsgang der Holzschwellenschrauben einzuschalten, ohne daß ein besonderer Arbeitsgang notwendig ist. Demgemäß kennzeichnet sich die den Gegenstand der Erfindung bildende Einrichtung zum Fertigstellen von Holzschwellenschrauben durch Warmwalzen dadurch, daß sie sowohl Einrichtungen zum Einwalzen des Gewindes als auch ein Werkzeug zum Entfernen des Grates enthält. Während des Einwalzens des Gewindes in den in warmem Zustand zwischen den Walzrollen hindurchbewegten Schraubenrohling wird also der unterhalb des Schraubenkopfes des Rohlings beim Pressen entstandene Längsgrat mit Hilfe des spananhebenden Werkzeugs entfernt. o Eine solche Einrichtung ist beispielsweise in der Zeichnung dargestellt.While so far this burr formation in a special operation were removed, which was cumbersome and expensive, the invention proposes the elimination of the burr in the normal further production process of the wooden sleeper screws, without any special operation being necessary. Accordingly, the Device forming the subject of the invention for finishing wood sleeper screws by hot rolling in that they are both means for rolling in the thread as well as a tool to remove the burr. While rolling in the Thread in the screw blank moved through between the rolling rollers in the warm state is the one created below the screw head of the blank during pressing Longitudinal burr removed with the aid of the cutting tool. o Such a facility is shown for example in the drawing.

Nachdem mit Hilfe entsprechender Gesenke der Schraubenkopf an das Stabeisenstück i angestaucht ist, wird dieses bei dem darauffolgenden Warmgewindewalzen in Umdrehung versetzt (Abb. i), welcher Vorgang dazu benutzt wird, gleichzeitig den beim Anstauchen des Kopfes entstandenen, am äußeren Umfang desselben parallel zur Stabeisenachse verlaufenden Grat zu entfernen. Dieses geschieht mit Hilfe der fräserartig ausgebildeten Scheibe z. Mit 3 sind die konischen Walzrollen bezeichnet, zwischen denen der in Umdrehung versetzte Schraubenrohling i zum Einwalzen des Gewindes hindurchbew egt wird.After the screw head has been attached to the Bar iron piece i is upset, this becomes in the subsequent hot thread rolling set in rotation (Fig. i), which process is used for this, at the same time those resulting from upsetting the head, parallel on the outer circumference of the same to remove the burr running to the bar axis. This is done with the help of cutter-like disk z. With 3 the conical rolling rollers are designated, between which the screw blank i set in rotation for rolling in the thread is moved through.

Claims (1)

PATENTANSPRUCH: Einrichtung zum Fertigstellen von Holzschwellenschrauben durch Warmwalzen, gekennzeichnet durch kegelige, im Winkel zueinander angeordnete Gewindewalzrollen und ein spanabhebendes Werkzeug, das während des Einwalzens des Gewindes in den im warmen Zustande zwischen den Walzrollen hindurchbewegten Schraubenrohling den unterhalb des Schraubenkopfes des Rohlings beim Pressen entstandenen Längsgrat entfernt.PATENT CLAIM: Device for finishing wood sleeper screws by hot rolling, characterized by conical ones arranged at an angle to one another Thread rolling rollers and a cutting tool that is used during the rolling in of the Thread in the screw blank moved through between the rolling rollers in the warm state the longitudinal burr created under the screw head of the blank during pressing removed.
DEV29107D Device for finishing wood sleeper screws by hot rolling Expired DE597253C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV29107D DE597253C (en) Device for finishing wood sleeper screws by hot rolling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV29107D DE597253C (en) Device for finishing wood sleeper screws by hot rolling

Publications (1)

Publication Number Publication Date
DE597253C true DE597253C (en) 1934-05-19

Family

ID=7584630

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV29107D Expired DE597253C (en) Device for finishing wood sleeper screws by hot rolling

Country Status (1)

Country Link
DE (1) DE597253C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2627767A (en) * 1949-04-09 1953-02-10 Economy Engineering Company Automatically fed thread rolling machine
US2642594A (en) * 1949-11-29 1953-06-23 Fray Victor Hill Screw or like nicking machine
US2676343A (en) * 1951-03-10 1954-04-27 Nat Screw & Mfg Company Screw slotting and burr removing machine
DE1195263B (en) * 1961-12-30 1965-06-24 Altenloh Brinck & Co Device for the production of wood screws from preformed blanks with a reduced diameter of the threaded shaft part

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2627767A (en) * 1949-04-09 1953-02-10 Economy Engineering Company Automatically fed thread rolling machine
US2642594A (en) * 1949-11-29 1953-06-23 Fray Victor Hill Screw or like nicking machine
US2676343A (en) * 1951-03-10 1954-04-27 Nat Screw & Mfg Company Screw slotting and burr removing machine
DE1195263B (en) * 1961-12-30 1965-06-24 Altenloh Brinck & Co Device for the production of wood screws from preformed blanks with a reduced diameter of the threaded shaft part

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