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1. 发明授权

US11260441B2 Press for extruding metal material 有权
公开(公告)号：US11260441B2
公开(公告)日：2022-03-01
申请号：US16764369
申请日：2018-11-23
申请人： DANIELI & C. OFFICINE MECCANICHE S.p.A.
发明人： Alessandro Mario Galli , Michele Ce′ , Mattia Merlini
IPC分类号： B21C23/21
摘要： The invention relates to a press for extruding metal material. The press comprises a hydraulic oil circuit for controlling one or more extrusion pistons movable within corresponding cylinders. Such a circuit comprises a fixed displacement, circulation pump operated by an electric motor with variable rotation speed. The hydraulic circuit comprises a main line and a branch line, along which a shutoff element is arranged. The hydraulic circuit comprises a hydraulic control unit comprising a pilot valve arranged along a pilot line provided with a first segment communicating with the main line and a second discharging segment. Said hydraulic unit is provided to move the shutoff element between an opening position and a closing position of the branch line according to the difference between the oil pressure upstream of the shutoff element and that in the first segment of said pilot line. The hydraulic circuit further comprises a control element which, in an activation condition, and as a result of the activation of said pilot valve, determines a gradual increase of the pressure in the first segment of said pilot line and a corresponding gradual closing movement of said shutoff element causing a consequent gradual increase of the thrust on the piston until the reference speed is reached.

2. 发明授权

US11318514B2 Press for the direct extrusion of metallic material 有权
公开(公告)号：US11318514B2
公开(公告)日：2022-05-03
申请号：US16721369
申请日：2019-12-19
申请人： Danieli & C. Officine Meccaniche S.P.A.
发明人： Alessandro Mario Galli , Mattia Merlini
IPC分类号： B21C23/04 , B21C23/21
摘要： The present invent on relates to a press for the direct extrusion of metallic material. The press comprises a supporting structure, a container receiving the metallic material to be extruded, a container holder element and a plurality of adjustment devices to adjust the position of the container holder with respect to the supporting structure. The container holder element is movable along an extrusion direction by means of a plurality of pads slidable along corresponding guides integral with the supporting structure. The press comprises at least one motorized member operationally connected to at least one of the adjustment devices to determine a variation of the position of the container holder with respect to the supporting structure.

3. 发明申请

US20200331047A1 PLANT FOR EXTRUDING METALS COMPRISING A SYSTEM OF PULLERS WITH SINGLE DIRECTION GUIDES 审中-公开
公开(公告)号：US20200331047A1
公开(公告)日：2020-10-22
申请号：US16754091
申请日：2018-10-15
申请人： DANIELI & C. OFFICINE MECCANICHE S.p.A.
发明人： Alessandro Mario Galli , Mattia Merlini
IPC分类号： B21C35/02
摘要： A system of pullers, in particular for extruding metals, said system comprising at least a first puller and a second puller, each equipped with gripping means adapted to engage and grip an end portion of a profile, in particular of an extruded profile exiting from an extrusion press, said system comprising a first guide and a second guide, where said at least two, first and second, pullers can be translated along said first and second guides, where said first guide is dedicated to the translation of both said at least two, first and second, pullers in a single first translation direction, and where said second guide is dedicated to the translation of both said at least two, first and second, pullers in a second translation direction opposite to said first translation direction.

4. 发明公开

US20240001421A1 FRONT LOADING EXTRUSION PRESS FOR PRODUCING METAL EXTRUDATES BY EXTRUDING A BILLET 审中-公开
公开(公告)号：US20240001421A1
公开(公告)日：2024-01-04
申请号：US18255565
申请日：2021-12-02
申请人： DANIELI & C. OFFICINE MECCANICHE S.P.A.
发明人： Alessandro Mario Galli , Paolo Ballarini
IPC分类号： B21C23/04
CPC分类号： B21C23/04
摘要： An extrusion press for producing metal items by extruding a metal billet, said press comprising an extrusion die and a main cylinder including an extrusion punch adapted to be translated in two opposite directions, wherein the translation of said extrusion punch in a first extrusion direction results in a push against said billet and in the extrusion of said billet through said extrusion die, said press comprising a container and a movable punch holder crosspiece, both being translatable in two opposite directions parallel to the translation directions of said extrusion punch, wherein said container is adapted to be translated by means of at least a first dedicated cylinder including a first dedicated rod rigidly fastened to said container, and wherein said container is adapted to be moved close to said extrusion die by means of said dedicated first cylinder and rod so as to contain said billet.

5. 发明申请

US20200276626A1 PRESS FOR EXTRUDING METAL MATERIAL 审中-公开
公开(公告)号：US20200276626A1
公开(公告)日：2020-09-03
申请号：US16764369
申请日：2018-11-23
申请人： DANIELI & C. OFFICINE MECCANICHE S.p.A.
发明人： Alessandro Mario Galli , Michele Ce' , Mattia Merlini
IPC分类号： B21C23/21
摘要： The invention relates to a press for extruding metal material. The press comprises a hydraulic oil circuit for controlling one or more extrusion pistons movable within corresponding cylinders. Such a circuit comprises a fixed displacement, circulation pump operated by an electric motor with variable rotation speed. The hydraulic circuit comprises a main line and a branch line, along which a shutoff element is arranged. The hydraulic circuit comprises a hydraulic control unit comprising a pilot valve arranged along a pilot line provided with a first segment communicating with the main line and a second discharging segment. Said hydraulic unit is provided to move the shutoff element between an opening position and a closing position of the branch line according to the difference between the oil pressure upstream of the shutoff element and that in the first segment of said pilot line. The hydraulic circuit further comprises a control element which, in an activation condition, and as a result of the activation of said pilot valve, determines a gradual increase of the pressure in the first segment of said pilot line and a corresponding gradual closing movement of said shutoff element causing a consequent gradual increase of the thrust on the piston until the reference speed is reached.

6. 发明授权

US11684960B2 Plant for extruding metals comprising a system of pullers with single direction guides 有权
公开(公告)号：US11684960B2
公开(公告)日：2023-06-27
申请号：US16754091
申请日：2018-10-15
申请人： DANIELI & C. OFFICINE MECCANICHE S.p.A.
发明人： Alessandro Mario Galli , Mattia Merlini
IPC分类号： B21C35/02 , B21C1/30
CPC分类号： B21C35/02 , B21C1/30
摘要： A system of pullers, in particular for extruding metals, the system comprising at least a first puller and a second puller, each equipped with gripping means adapted to engage and grip an end portion of a profile, in particular of an extruded profile exiting from an extrusion press, the system comprising a first guide and a second guide, where the at least two, first and second, pullers can be translated along the first and second guides, where the first guide is dedicated to the translation of both the at least two, first and second, pullers in a single first translation direction, and where the second guide is dedicated to the translation of both the at least two, first and second, pullers in a second translation direction opposite to the first translation direction.

7. 发明授权

US11292041B2 Press for the direct extrusion of metallic material 有权
公开(公告)号：US11292041B2
公开(公告)日：2022-04-05
申请号：US16719783
申请日：2019-12-18
申请人： Danieli & C. Officine Meccaniche S.P.A.
发明人： Alessandro Mario Galli , Mattia Merlini , Giacomo Calvetti
IPC分类号： B21C23/04
摘要： The present invention relates to a press for the direct extrusion of metallic material, wherein the press comprises a supporting structure which defines an extrusion axis and a transverse direction orthogonal to said extrusion axis. The press further comprises an extrusion die and a die-holder drawer, in which said die is placed. Moving means are provided for moving said drawer along a transverse direction between a first position (P1), in which said die is aligned with said extrusion axis, and a second position in which, when reached, said die can be replaced. The press according to the invention further comprises a fixed supporting element which supports the drawer at least when it occupies the first position. The press further comprises at least a movable supporting element for supporting said drawer during the movement along said transverse direction; lifting means are provided for vertically lifting the movable supporting element between a first vertical position, in which the drawer is supported by the fixed supporting element, and a second vertical position, in which the drawer is lifted with respect to the fixed supporting element and supported by said at least one movable supporting element.

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