Device and method for rolling of pipe blanks
AssigneeSMS Meer GmbH
InventorThomas WINTERFELDT
Life of this patent
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Abstract
A device for rolling of pipe blanks has a planetary cross-rolling mill, an advancing bed, a pipe blank feed, a pipe blank advancing unit that pushes the pipe blanks through the planetary cross-rolling mill, proceeding from the advancing bed, the unit having at least one advancing apparatus, and having a mandrel rod and a mandrel rod holder. The pipe blank feed has an axial pipe blank conveying unit that conveys a pipe blank axially into a readiness position, which is provided axially behind the mandrel rod holder. The advancing apparatus is disposed between the planetary cross-rolling mill and the mandrel rod holder, and has a slide.
Claims15
A device for rolling of pipe blanks, comprising:
- a planetary cross-rolling mill;
- an advancing bed;
- a pipe blank feed;
- a pipe blank advancing unit that pushes the pipe blanks through the planetary cross-rolling mill, proceeding from the advancing bed, said unit having at least one advancing apparatus;
- a mandrel rod;
- and
- a mandrel rod holder,
- wherein the pipe blank feed has an axial pipe blank conveying unit that conveys a pipe blank axially into a readiness position, said pipe blank conveying unit being provided axially behind the mandrel rod holder,
- wherein the advancing apparatus is disposed between the planetary cross-rolling mill and the mandrel rod holder, and
- wherein the advancing apparatus has a slide.
A device for rolling of pipe blanks, comprising:
- a planetary cross-rolling mill;
- an advancing bed;
- a pipe blank feed;
- a pipe blank advancing unit that pushes the pipe blanks through the planetary cross-rolling mill, proceeding from the advancing bed, said unit having at least one advancing apparatus;
- a mandrel rod;
- and
- a mandrel rod holder,
- wherein the pipe blank feed has an axial pipe blank conveying unit that conveys a pipe blank axially into a readiness position, said pipe blank conveying unit being provided axially behind the mandrel rod holder,
- wherein the advancing apparatus is disposed between the planetary cross-rolling mill and the mandrel rod holder, and
- wherein the mandrel rod holder has at least two holding devices, of which a first holding device is disposed behind and a second holding device is disposed in front of the advancing apparatus.
A device for rolling of pipe blanks, comprising:
- a planetary cross-rolling mill;
- an advancing bed;
- a pipe blank feed;
- a pipe blank advancing unit that pushes the pipe blanks through the planetary cross-rolling mill, proceeding from the advancing bed, said unit having at least one advancing apparatus;
- a mandrel rod;
- and
- a mandrel rod holder,
- wherein the pipe blank feed has an axial pipe blank conveying unit that conveys a pipe blank axially into a readiness position, said pipe blank conveying unit being provided axially behind the mandrel rod holder,
- wherein the advancing apparatus is disposed between the planetary cross-rolling mill and the mandrel rod holder, and wherein the advancing apparatus has an advancing path that is longer than half the length of the pipe blanks.
A method for rolling of pipe blanks in a planetary cross-rolling mill, comprising the following steps:
- continuously conveying the pipe blanks to the planetary cross-rolling mill, end to end, and
- pushing the pipe blanks into the planetary cross rolling mill via two alternating advancing apparatuses, wherein the two advancing apparatuses are operated with different stroke lengths from each other.
A method for rolling of pipe blanks in a planetary cross-rolling mill, comprising the following steps:
- continuously conveying the pipe blanks to the planetary cross-rolling mill, end to end;
- and
- pushing the pipe blanks into the planetary cross-rolling mill via two alternating advancing apparatuses, wherein a front one of the two advancing apparatuses rams the pipe blank.
A method for rolling of pipe blanks in a planetary cross-rolling mill, comprising conveying the pipe blanks to the planetary cross-rolling mill separate from one another, wherein each pipe blank is pushed over a mandrel rod before being rolled.
A method for rolling of pipe blanks in a planetary cross-rolling mill, comprising conveying the pipe blanks to the planetary cross-rolling mill separate from one another, wherein each pipe blank is axially conveyed onto an advancing bed.
A method for rolling of pipe blanks in a planetary cross-rolling mill, comprising conveying the pipe blanks to the planetary cross-rolling mill separate from one another, wherein a mandrel rod disposed in the pipe blank is held by a mandrel rod holder during rolling.
Dependencies are inferred from the claim text.