Bar unloading apparatus of the revolver type provided with braking device

Patent metadata

Field	Value
Publication number	US-10150148-B2
Application number	US-201415109516-A
Country	US
Kind code	B2
Filing date	Dec 30, 2014
Priority date	Jan 2, 2014
Publication date	Dec 11, 2018
Grant date	Dec 11, 2018

Abstract

A bar unloading apparatus of the revolver type, comprising: —a longitudinal rotor (10) divided into at least three longitudinal stretches (11, 12, 13) integral with one another and adapted to rotate about a longitudinal rotation axis, on the outer longitudinal surfaces of which there is provided a plurality of longitudinal channels, extending on the at least three stretches over the whole longitudinal extension of the rotor (10) and parallel to said longitudinal axis, to receive respective longitudinal bars, —and at least one braking device for braking the longitudinal bars entering in at least one of the longitudinal channels, wherein the at least one braking device is integrated in at least one first stretch (12) of said at least three longitudinal stretches (11, 12, 13), is rotationally fixed to the longitudinal rotor (10) and is provided with braking elements (1) in each of said longitudinal channels so that said at least one braking device can rotate together with the longitudinal rotor (10) and brake the longitudinal bars even during a rotation of the longitudinal rotor (10).

First claim

The invention claimed is:

1. A bar unloading apparatus of the revolver type, comprising:
a longitudinal rotor divided into at least three longitudinal stretches integral with one another and adapted to rotate about longitudinal rotation axis, on the outer longitudinal surfaces of which there is provided a plurality of longitudinal channels, extending on the at least three longitudinal stretches over the whole longitudinal extension of the rotor and parallel to said longitudinal rotation axis, to receive respective longitudinal bars,
and at least one braking device for braking the longitudinal bars entering in at least one of the longitudinal channels,

wherein the at least one braking device is integrated in at least one first stretch of said at least three longitudinal stretches is rotationally fixed to the longitudinal rotor and is provided with braking elements in each of said longitudinal channels so that said at least one braking device can rotate together with the longitudinal rotor and brake the longitudinal bars even during a rotation of the longitudinal rotor.

2. A bar unloading apparatus according to claim 1 , wherein said at least one braking device comprises a pair of braking elements for each longitudinal channel, adapted to approach to each other to brake a respective longitudinal bar.

3. A bar unloading apparatus according to claim 2 , wherein there are provided actuating, means for actuating each pair of braking elements.

4. A bar unloading apparatus according to claim 3 , wherein the first stretch of said at least three longitudinal stretches comprises fixed portions and movable portions, the latter being adapted to shift along said longitudinal rotation axis.

5. A bar unloading apparatus according to claim 4 , wherein the braking elements of each pair are hinged to a fixed portion and provided with tappet elements which restrain said braking elements to a corresponding movable portion.

6. A bar unloading apparatus according to claim 5 , wherein said actuating means comprise at least one fixed cylinder adapted to slide support elements of the movable portions parallel to said longitudinal rotation axis, said movable portions being only axially restrained to said support elements so that the tappet elements cause a symmetric closing or opening movement of the braking elements.

7. A bar unloading apparatus according to claim 6 , wherein said movable portions are provided with movable sliding guides for the tappet elements.

8. A bar unloading apparatus according to claim 7 , wherein said movable sliding guides define a V-shape.

9. A bar unloading apparatus according to claim 6 , wherein said actuating means comprise a single fixed cylinder of the double rod or through rod type, adapted to slide two supporting elements of respective second movable portions in order to actuate all the pairs of braking elements.

10. A bar unloading apparatus according to claim 6 , wherein said actuating means comprise two fixed cylinders: a first fixed cylinder to actuate the pairs of braking elements of a first half of longitudinal channels of the longitudinal rotor at the same time, and a second fixed cylinder to actuate the pairs of braking elements of the second half of the longitudinal channels at the same time.

11. A bar unloading apparatus according to claim 6 , wherein there are provided four longitudinal channels and said actuating means comprise four fixed cylinders, each fixed cylinder actuating the pair of braking elements of a respective longitudinal channel of the longitudinal rotor.

12. A bar braking method, carried out by means of a bar unloading apparatus according to claim 1 , comprising the following steps:
providing the braking elements in an opening position in at least one first channel of said longitudinal channels to leave a space inside the least one first channel free;
inserting a longitudinal bar into said first channel,
once a tail of said longitudinal bar is inside said first channel, rotating the longitudinal rotor by a predetermined angular amplitude about the longitudinal rotation axis, simultaneously braking the longitudinal bar by switching the braking elements from said opening position to a closing position on said longitudinal bar.

Assignees

• Danieli Off Mecc

Inventors

• Menosso Fausto
• Della Rossa Flavio

Classifications

• B21B43/003

  Transfer to bed · CPC title

• B21B39/086 Primary

  Braking devices · CPC title

• B21D43/006

  Feeding elongated articles, such as tubes, bars, or profiles · CPC title

• B21B39/08

  Braking or tensioning arrangements · CPC title