Single shear for cutting and conveying multiple rolled sections

Patent metadata

Field	Value
Publication number	US-11772174-B2
Application number	US-201916653124-A
Country	US
Kind code	B2
Filing date	Oct 15, 2019
Priority date	Oct 9, 2013
Publication date	Oct 3, 2023
Grant date	Oct 3, 2023

Abstract

A shear for cutting and simultaneously conveying one or more pairs of rolling wires or bars includes a mobile diverter with at least two channels in each of which a wire or bar slides and at least two pairs of counter-rotating knives, each pair of which acts upon the wire or bar to produce cut segments of wires or bars. The cut segments of wires or bars are then conveyed by a conveying device including at least one pair of mobile elements that may be configured to move independent of each other and to be synchronized with each other and with the mobile diverter for facilitating insertion of each of the cut sections of wires or bars into an output channel of at least two pairs of output channels, each pair of output channels corresponding to one of the mobile diverters.

First claim

The invention claimed is:

1. A shear for cutting and simultaneously conveying pairs of rolling wires or bars, comprising:
a) a mobile diverter comprising two channels, each channel being configured for one of the wires or bars to slide therein, the mobile diverter being moveable to provide a movement of the mobile diverter;
b) two pairs of counter-rotating knives, each pair of counter-rotating knives acting on a respective one of the wires or bars to produce respective segments of wire or bar;
c) a conveying device for conveying the segments of wire or bar, the conveying device comprising first and second pairs of output channels for conveying the segments of wire or bar, the first pair of output channels comprising a first lateral channel and a first central channel, the second pair of output channels comprising a second lateral channel and a second central channel; and
d) first and second mobile elements, wherein the first mobile element is positioned immediately before the first central channel and the second mobile element is positioned immediately before the second central channel, the first and second mobile elements being synchronized to move vertically and simultaneously, each of the first and second mobile elements moving between an upper position where the respective central channel is totally closed and a lower position where the respective central channel is totally open, the first and second mobile elements being synchronized with the movement of the mobile diverter so as to facilitate insertion of each of the segments of wire or bar in one of the first or second central channels or one of the first or second lateral channels of the first and second pairs of output channels;
wherein the first and second mobile elements are arranged mirror-wise with each other and each of said first and second mobile elements include:
a lateral containment wall;
a sliding surface arranged transversally to said lateral containment wall;
a conveying surface inclined with respect to said lateral containment wall; and
a wedge-shaped element, the wedge-shaped element having exterior surfaces defined by said sliding surface and said conveying surface, a base of the wedge-shaped element resting on a portion of the lateral containment wall;

wherein the first lateral channel has a first inner side and a first outer side, and where the second lateral channel has a second inner side and a second outer side;
wherein the first lateral channel is delimited on the first outer side by a first outer lateral wall and on the first inner side initially by the lateral containment wall of the first mobile element and then by a first intermediate partition, and wherein the second lateral channel is delimited on the second outer side by a second outer lateral wall and on the second inner side by the lateral containment wall of the second mobile element and then by a second intermediate partition.

2. A shear according to claim 1 , wherein a thickness of said wedge-shaped element of each mobile element is at a minimum at an inlet side.

3. A shear according to claim 2 , wherein the sliding surfaces of the first and second mobile elements are inclined downwards, starting from the inlet side, in order to facilitate insertion of the segments of wire or bar in the first and second central channels of the two pairs of output channels.

4. A shear according to claim 2 , wherein each of the first lateral channel and the second lateral channel comprises a lower surface and an upper surface, the upper and lower surfaces of the first lateral channel defining a distance therebetween corresponding to a height of the first lateral channel, and the upper and lower surfaces of the second lateral channel defining a distance therebetween corresponding to a height of the second lateral channel.

5. A shear according to claim 4 , wherein for each of the first and second mobile elements, a height of the lateral containment wall is greater than or equal to the heights of the first and second lateral channels, and wherein each of the conveying surfaces of the first and second mobile elements has a height equal to a height of a portion of the respective lateral containment wall upon which the respective base of the respective wedge-shaped element is not resting.

Assignees

• Danieli Off Mecc

Inventors

• Bordignon Giuseppe
• Zerajic Miroslav

Classifications

• B23D33/02 Primary

  Arrangements for holding, guiding, and/or feeding work during the operation · CPC title

• B21B15/0007

  Cutting or shearing the product · CPC title

• B23D25/12

  Shearing machines with blades on coacting rotating drums · CPC title

• B21B39/18

  Switches for directing work in metal-rolling mills or trains · CPC title

• B21B2015/0021

  in the rolling direction · CPC title