GB707815A - Improvements in or relating to power presses - Google Patents
Improvements in or relating to power pressesInfo
- Publication number
- GB707815A GB707815A GB73451A GB73451A GB707815A GB 707815 A GB707815 A GB 707815A GB 73451 A GB73451 A GB 73451A GB 73451 A GB73451 A GB 73451A GB 707815 A GB707815 A GB 707815A
- Authority
- GB
- United Kingdom
- Prior art keywords
- links
- press
- cylinder
- toggle
- toggle links
- 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
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/10—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism
- B30B1/16—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism operated by fluid-pressure means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
Abstract
707,815. Toggle presses. PARSONS, A. T. April 4, 1952 [Jan. 10, 1951], No. 734/51. Class 87 (2) In a power press in which a reciprocating press head is connected by toggle links to a fixed part of the press and to a valve-controlled fluidoperated piston and cylinder disposed at rightangles to the toggle links and adapted to extend and contract them, the piston rod 8 of the operating cylinder is associated with the press frame (at 6) and press head 1 by a set of short toggle links 7, 13 and the operating cylinder 10 is associated with the press frame and press head by a set of longer toggle links 9, 14. The front end of the cylinder 10 is thus suspended by the links 9, 14; its rear end is suspended by links 17 from a pin 19 which is engaged in arcuate slots 20 in the side plates 4 of the frame and held in position by nut carrying a handle 22. To adjust the working stroke the height of the upper toggle links axis pin is altered by screws 25, 26 passing through a cross-bar 6 of the frame, 'the pin 19 then being altered to the same level by moving it in the slots 20 with the nut slacked off. As the piston rod 8 is forced by fluid pressure out of the cylinder 10, i.e. to the left as in Fig. 3, the toggle links 7, 13 first straighten and thus give a second stamp (the first having been given when the Piston rod moved into the cylinder) and then, after passing through dead-centre, raise the press head 1. At the same time the cylinder 10 moves in the opposite direction to the piston and thus collapses the toggle links 9, 14 (which can never straighten although the links 7, 13 can), thereby assisting in raising the press head, which is guided by rods 2 running in bearings in the side plates 4. The valve gear 28, which may be in any convenient position, controlling the inlet and exhaust of fluid to and from the operating cylinder, may be interlocked with the press guard so that operation of the press depends on the position of the guard. Instead of suspending the rear end of the cylinder 10 by links 17 it' may be supported by long links associated with the upper and lower toggle link axis pins.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB73451A GB707815A (en) | 1951-01-10 | 1951-01-10 | Improvements in or relating to power presses |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB73451A GB707815A (en) | 1951-01-10 | 1951-01-10 | Improvements in or relating to power presses |
Publications (1)
Publication Number | Publication Date |
---|---|
GB707815A true GB707815A (en) | 1954-04-21 |
Family
ID=9709597
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB73451A Expired GB707815A (en) | 1951-01-10 | 1951-01-10 | Improvements in or relating to power presses |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB707815A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3015131A (en) * | 1958-06-07 | 1962-01-02 | Arburg Feingeratefabrik Ohg He | Clamping mechanism for molding press |
FR2571650A1 (en) * | 1984-10-16 | 1986-04-18 | Simo | Device for smoothing cast concrete elements |
GB2168447A (en) * | 1984-12-18 | 1986-06-18 | Marconi Instruments Ltd | Toggle-linkage for platen press |
-
1951
- 1951-01-10 GB GB73451A patent/GB707815A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3015131A (en) * | 1958-06-07 | 1962-01-02 | Arburg Feingeratefabrik Ohg He | Clamping mechanism for molding press |
FR2571650A1 (en) * | 1984-10-16 | 1986-04-18 | Simo | Device for smoothing cast concrete elements |
GB2168447A (en) * | 1984-12-18 | 1986-06-18 | Marconi Instruments Ltd | Toggle-linkage for platen press |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB671894A (en) | Improvements in or relating to overload device for metal working press | |
ES485531A1 (en) | Forging press | |
GB707815A (en) | Improvements in or relating to power presses | |
US2289584A (en) | Metal stretching press | |
US2371411A (en) | Machine for cutting or shearing sheets or plates of metal | |
SE7903370L (en) | PunchING MACHINE | |
ES337529A1 (en) | Shearing machine for continuous metal sheet | |
GB884332A (en) | Improvements in hydraulic presses | |
GB667323A (en) | Improvements relating to bending machines | |
GB1121931A (en) | Machine for bending sections and tubes | |
GB612321A (en) | Improvements in or relating to bending machines | |
GB803669A (en) | Improvements in or relating to power operated presses | |
GB1078913A (en) | High energy rate forming machine | |
GB1119811A (en) | Improvements in or relating to bending machines | |
SU376271A1 (en) | All Union [AJ I BIBLIO-; ь:; | |
GB629256A (en) | Improvements in or relating to a hydraulic system | |
GB862090A (en) | Hydraulic cylinder unit | |
SU1479323A1 (en) | Double-action press | |
GB1489575A (en) | Forming machine | |
GB1511681A (en) | Hydraulic ram mechanism | |
SU491482A1 (en) | Hydraulic screw press | |
GB724062A (en) | Improvements in and relating to hydraulic jacks | |
GB520833A (en) | Improvements in or relating to stamps, hammers and the like | |
JPS5674330A (en) | Work transfer apparatus | |
GB688730A (en) | Improvements in or relating to mechanical sheet metal drawing presses of the triple action type |