DE409591C - Hydraulic parallel guide for hydraulic presses - Google Patents
Hydraulic parallel guide for hydraulic pressesInfo
- Publication number
- DE409591C DE409591C DEM81971D DEM0081971D DE409591C DE 409591 C DE409591 C DE 409591C DE M81971 D DEM81971 D DE M81971D DE M0081971 D DEM0081971 D DE M0081971D DE 409591 C DE409591 C DE 409591C
- Authority
- DE
- Germany
- Prior art keywords
- hydraulic
- cylinders
- parallel guide
- press
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/16—Control arrangements for fluid-driven presses
- B30B15/24—Control arrangements for fluid-driven presses controlling the movement of a plurality of actuating members to maintain parallel movement of the platen or press beam
- B30B15/245—Control arrangements for fluid-driven presses controlling the movement of a plurality of actuating members to maintain parallel movement of the platen or press beam using auxiliary cylinder and piston means as actuating members
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Presses (AREA)
- Fluid-Pressure Circuits (AREA)
Description
Hydraulische Parallelführung für hydraulische Pressen. Zur sicheren Leitung der Querhäupter von hydraulischen Pressen kann für viele Zwecke die bekannte hydraulische Parallelführung mit vier gleich großen Kolben, deren Zylinder über Kreuz miteinander in Verbindung stehen, dienen. Bedingungen für eine durchaus genaue Führung sind dabei: vollständige Füllung der Zylinder und ihrer Verbindungsleitungen, da stets die Gefahr besteht, daß durch Undichtwerden der Packungen etwas Druckflüssigkeit entweicht; keine Bildung von Luftkissen in den Zylindern und endlich Aufrechterhaltung eines bestimmten Druckes in der Füllflüssigkeit, um Ungenauigkeiten infolge von Dehnungen der Wandungen und der Gestänge auf ein möglichst kleines Maß herabzubringen.Hydraulic parallel guide for hydraulic presses. To be safe Conducting the crossheads of hydraulic presses can be known for many purposes Hydraulic parallel guide with four pistons of the same size, the cylinders of which have Cross communicate with each other, serve. Conditions for a perfectly accurate Leadership are: complete filling of the cylinders and their connecting lines, as there is always the risk of some pressure fluid from leaking from the packs escapes; no formation of air cushions in the cylinders and finally maintenance a certain pressure in the filling liquid to avoid inaccuracies due to Bring expansion of the walls and the rods down to the smallest possible level.
Die in der Zeichnung dargestellte Einrichtung erfüllt die oben angegebenen Bedingungen.The device shown in the drawing complies with the above Conditions.
i zeigt ein Preßhaupt, welches in einem Gestell mittels der hydraulisch angetriebenen Kolben z und 3 auf und ab bewegt wind. 4. 5, 6 und 7 sind die Zylinder der hydraulischen Parallelführung. Mittels Rohrleitungen sind die Zylinder 4 und 6 sowie 5 und 7 miteinander verbunden. Diese sind so angebracht, und die Rohrverbindung ist derart getroffen, daß etwaige Luftblasen von 4 nach 6 und von 7 nach 5 steigen, wo sie durch die Packungen entweichen können.i shows a press head, which is in a frame by means of the hydraulic driven piston z and 3 moved up and down wind. 4. 5, 6 and 7 are the cylinders the hydraulic parallel guidance. The cylinders 4 and 6 as well as 5 and 7 connected to one another. These are so attached, and the pipe connection is made in such a way that any air bubbles rise from 4 to 6 and from 7 to 5, where they can escape through the packs.
Jedem Zylinderpaar ist eine Füll- und Druckregelvorrichtung 8 und g angeschlossen, wodurch eine Verbindung mit den Zylindern der Preßkolben z und 3 hergestellt wird. In einer solchen Vorrichtung sind zwei Rückschlagventile io und i i und ein Sicherheitsventil 1a eingebaut. Das Rückschlagventil io verhindert ein Abströmen von Flüssigkeit aus den Führungszylindern. Im Ruhezustand der Presse wird das Ventil i i durch eine regelbare Zugfeder 13 mittels eines kleinen Kolbens 14 gehoben und so offen gehalten. Der Raum über dem Ventil i i steht mit der Preßeüssigkeitsleitung in Verbindung, während %unter ihm eine Leitung unter dem Sicherheitsventil 12 her unter das Ventil io führt..Each cylinder pair is a filling and pressure control device 8 and g connected, whereby a connection with the cylinders of the plunger z and 3 is produced. In such a device, two check valves are io and i i and a safety valve 1a installed. The check valve prevents OK an outflow of liquid from the guide cylinders. When the press is idle the valve i i is controlled by an adjustable tension spring 13 by means of a small piston 14 raised and so kept open. The space above the valve i i stands with the Press fluid line in connection, while% under him a line under the safety valve 12 leads under the valve io ..
Bei Inbetriebsetzung der hydraulischen Maschine dringt die Preßflüssigkeit in alle sechs Zylinder, so daß auch die Zylinder. q., 5, 6 und 7 sicher ganz gefüllt erhalten werden. Ist in ihnen ein bestimmter, durch die Fed,hr 13 einstellbarer Druck erreicht, so senken sich die durch die Federn 13 gehobenen Kolben i4., und die Ventile i i sperren der Preßflüssigkeit den Weg zu den Parallelführungszylindern; sie kann nur noch in die Arbeitszylinder 2 und 3 strömen. Die Sicherheitsventile 12, verhindern Drucküberschreitungen, falls die Ventile io oder ii versagen sollten.When the hydraulic machine is started up, the press liquid penetrates all six cylinders, so that the cylinders too. q., 5, 6 and 7 are sure to be kept completely filled. If a certain pressure which can be set by the spring, hr 13, is reached in them, the pistons i4 raised by the springs 13 lower, and the valves ii block the path of the press fluid to the parallel guide cylinders; it can only flow into working cylinders 2 and 3. The safety valves 12 prevent the pressure from being exceeded if the valves io or ii should fail.
Soll die hydraulische Parallelführung auf ein Querhaupt auch der Breite nach zur Anwendung kommen, so müssen statt der vier Kolben acht Kolben in geeigneter Weise mit den Füll- und Druckregelvorrichtungen verbunden werden.Should the hydraulic parallel guidance on a crosshead also be of width after are used, then instead of the four pistons eight pistons in suitable Way to be connected to the filling and pressure regulating devices.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM81971D DE409591C (en) | 1923-07-05 | 1923-07-05 | Hydraulic parallel guide for hydraulic presses |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM81971D DE409591C (en) | 1923-07-05 | 1923-07-05 | Hydraulic parallel guide for hydraulic presses |
Publications (1)
Publication Number | Publication Date |
---|---|
DE409591C true DE409591C (en) | 1925-02-07 |
Family
ID=7319182
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEM81971D Expired DE409591C (en) | 1923-07-05 | 1923-07-05 | Hydraulic parallel guide for hydraulic presses |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE409591C (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE946767C (en) * | 1954-03-06 | 1956-08-02 | Kieler Howaldtswerke Ag | Multi-cylinder press with hydraulic synchronization device |
DE1004924B (en) * | 1952-01-25 | 1957-03-21 | Anton Joseph Van Broekhoven | Hydraulic press or scissors with parallel guidance of the press beam |
DE1017028B (en) * | 1954-10-11 | 1957-10-03 | Kieler Howaldtswerke Ag | Hydraulic parallel guide for the pistons of a multi-cylinder press, especially a press brake |
DE1028960B (en) * | 1955-08-01 | 1958-04-30 | Schloemann Ag | Device for edging rolling stock |
DE1145924B (en) * | 1953-02-17 | 1963-03-21 | Baldwin Lima Hamilton Corp | Hydraulic press |
DE1652978B1 (en) * | 1961-02-23 | 1969-10-23 | Siemag Siegener Maschb Gmbh | Device for moving and guiding rolling stock |
DE19528813A1 (en) * | 1995-08-05 | 1997-02-06 | Smg Sueddeutsche Maschinenbau | Procedure for compensation of tilting moment on press slide - respective pistons of pair of identical hydraulic cylinders connected to press slide, and above=piston chamber of each cylinder connected to below=piston chamber of other |
-
1923
- 1923-07-05 DE DEM81971D patent/DE409591C/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1004924B (en) * | 1952-01-25 | 1957-03-21 | Anton Joseph Van Broekhoven | Hydraulic press or scissors with parallel guidance of the press beam |
DE1145924B (en) * | 1953-02-17 | 1963-03-21 | Baldwin Lima Hamilton Corp | Hydraulic press |
DE946767C (en) * | 1954-03-06 | 1956-08-02 | Kieler Howaldtswerke Ag | Multi-cylinder press with hydraulic synchronization device |
DE1017028B (en) * | 1954-10-11 | 1957-10-03 | Kieler Howaldtswerke Ag | Hydraulic parallel guide for the pistons of a multi-cylinder press, especially a press brake |
DE1028960B (en) * | 1955-08-01 | 1958-04-30 | Schloemann Ag | Device for edging rolling stock |
DE1652978B1 (en) * | 1961-02-23 | 1969-10-23 | Siemag Siegener Maschb Gmbh | Device for moving and guiding rolling stock |
DE19528813A1 (en) * | 1995-08-05 | 1997-02-06 | Smg Sueddeutsche Maschinenbau | Procedure for compensation of tilting moment on press slide - respective pistons of pair of identical hydraulic cylinders connected to press slide, and above=piston chamber of each cylinder connected to below=piston chamber of other |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE202015102613U1 (en) | Die cushion device | |
DE409591C (en) | Hydraulic parallel guide for hydraulic presses | |
DE1427300A1 (en) | Process for operating a closed-die forging or stamping press and their training | |
DE3835470A1 (en) | Return control system for die cushions on presses | |
DE202012102297U1 (en) | Hydraulic pressure point | |
DE1294330B (en) | Counter blow hammer | |
DE3702069A1 (en) | DRAWER IN A PRESS | |
DE1164965B (en) | Hydraulic sheet metal drawing press | |
DE721262C (en) | Device for lifting and pressing the saw blade in hacksaw machines by means of a piston that is acted upon on both sides | |
DE356272C (en) | Method for generating a shock effect during the power stroke of presses, in which a power element and a push element are connected to one another by a pressure-transmitting fluid | |
DE284114C (en) | ||
DE526213C (en) | Piston machine, in particular pump for conveying gases | |
DE684314C (en) | Control device for piston and floatless compressed air loaded fluid accumulators | |
DE1552824C3 (en) | Hydraulically driven and coupled counterblow hammer | |
DE1573547C3 (en) | Device on a pipe testing machine for automatic equalization pressure regulation | |
DE404037C (en) | Hydraulic upsetting press with clamping cylinder | |
DE147203C (en) | ||
DE636073C (en) | Hydropneumatic bouncing device for sheet metal drawing presses | |
AT80690B (en) | Device for operating hydraulic work machines Device for operating hydraulic work machines. inen. | |
DE915524C (en) | Multi-stage pressure generator in which a double-acting piston drives several hydraulic pressure generator pistons in alternating circuits | |
AT19543B (en) | High-speed forging press with two pressure intensifiers. | |
DE1427300C (en) | Drop forging or stamping press | |
DE561824C (en) | Hydraulic device for lifting triple-action track brakes in the ready position | |
DE393554C (en) | Safety starting valve, especially for conveyor machines and reels | |
DE701864C (en) | Process for expanding a mixture of liquid with gaseous and possibly solid substances from vessels under high pressure |