公开(公告)号：US20150290690A1

公开(公告)日：2015-10-15

申请号：US14128065

申请日：2012-10-31

Applicant: SMS Meer GmbH

Inventor： Karl Claasen ,  Uwe Muschalik

IPC: B21C23/21

CPC classification number: B21C23/217 ,  B21C23/211

Abstract: The invention relates to an extruder and tube extruder or metal extrusion press (1) having a press frame consisting of a cylinder bar (2) and a counter bar (4) connected thereto, in which a movable block receiver holder (7) supporting a block receiver (8) and a movable plunger traverse (6) are provided, wherein a main or pressing cylinder arranged in the cylinder bar (2) holds in its cylinder housing (9) a pressing piston (11) that is supported at its front end by the plunger traverse (6) and is furnished with a pressing plunger (18), and wherein the cylinder housing (9) connected to a tank line is associated with a compensation container (15) supplying the pressing piston (11) with hydraulic oil by means of a pusher plate (22) provided on a connecting rod (23) connected to the rear end of the pressing piston (11), wherein the connecting rod (23) extending in the compensation container (15) is connected to a hydraulic supply arranged upstream of the pusher plate (22) in the pressing direction (14). The considerable hydraulic expense for such an extruder, and in particular the downtime, is to be markedly reduced or shortened, with a simultaneously compact and simple construction. For this purpose the connecting rod (23) is constructed with an integrated filling valve (19) provided in the transition from the compensation container (15) to the main cylinder, adapted to the inside diameter of the cylinder housing (9) there and exposing a large annular cross-sectional area when it opens.

Abstract translation: 本发明涉及一种挤出机和管式挤出机或金属挤压机（1），其具有由连接到其上的气缸杆（2）和对接杆（4）组成的压框，其中支撑 设置块接收器（8）和可动柱塞横动件（6），其中布置在气缸杆（2）中的主缸或压缸在其气缸壳体（9）中保持有一个按压活塞（11） 通过柱塞横动（6）结束并配有压力柱塞（18），并且其中连接到油箱管线的气缸壳体（9）与向压力活塞（11）供应液压的补偿容器（15）相关联 通过设置在与所述按压活塞（11）的后端连接的连杆（23）上的推动板（22）的油，其中在所述补偿容器（15）中延伸的所述连杆（23）连接到 液压供给装置设置在推压板（22）的上游 方向（14）。 通过同时紧凑且简单的结构，这种挤出机的相当大的水力费用，特别是停机时间将显着减少或缩短。 为此目的，连杆（23）构造有一个设置在从补偿容器（15）到主缸的过渡中的集成的填充阀（19），适合于那里的气缸壳体（9）的内径 当其打开时具有大的环形横截面积。

公开(公告)号：US10166585B2

公开(公告)日：2019-01-01

申请号：US14128065

申请日：2012-10-31

Applicant: SMS MEER GMBH

Inventor： Karl Claasen ,  Uwe Muschalik

IPC: B21C23/21

Abstract: A tube or metal extrusion press has a stationary press frame formed by a main housing, a counter housing, a billet support carrying a billet holder, and a ram cross-member movable in the press frame between the housings. A piston-cylinder unit has a cylinder on the main housing, a piston in the cylinder, and a ram stem extending between a front end of the piston and the ram cross-member. An equalizing reservoir supplies hydraulic fluid to the piston, and a transfer passage extends between the reservoir and the cylinder rearward of the piston. A fill valve has a displacement sleeve on a rod and carries a ring piston and a fill valve body movable centrally of the cylinder in the transfer passage between an open position in which the passage has a large annular flow cross-section and a closed position in which the valve body blocks the passage.