GB1061884A - Improvements in or relating to presses - Google Patents

Improvements in or relating to presses

Info

Publication number
GB1061884A
GB1061884A GB8782/64A GB878264A GB1061884A GB 1061884 A GB1061884 A GB 1061884A GB 8782/64 A GB8782/64 A GB 8782/64A GB 878264 A GB878264 A GB 878264A GB 1061884 A GB1061884 A GB 1061884A
Authority
GB
United Kingdom
Prior art keywords
rod
during
rams
stroke
cup
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
Application number
GB8782/64A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rheinmetall Industrie AG
Original Assignee
Rheinmetall GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rheinmetall GmbH filed Critical Rheinmetall GmbH
Publication of GB1061884A publication Critical patent/GB1061884A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/46—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes silicones
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/26—Mechanisms or devices for locking or opening dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
    • B28B3/08—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form with two or more rams per mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
    • B30B11/04—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space co-operating with a fixed mould

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Presses And Accessory Devices Thereof (AREA)

Abstract

1,061,884. Toggle press. RHEINMETALL G.m.b.H. March 2, 1964 [Oct. 25, 1963], No. 8782/64. Addition to 1,039,606. Heading B5A. In a toggle operated moulding press, material is compressed in a mould 16, 17 from above and below simultaneously by rams 4 and 6, the rams moving over the same distance during the compression operation. As shown in the Figure, ram 4 is carried by a cross-piece 3 itself carried at the lower end of columns 2 slidable through the press frame 1, and ram 6 is carried by a slide 5 slidable along the columns. The rams are actuated by two double lever toggle systems having arms 12, 13 of unequal lengths, each pair of said arms being pivoted at B and A respectively to slide 5 and columns 2 respectively, and being actuated by a piston-operated rod 10. After the idle stroke in which the lower ram is stationary and the upper ram is moved downward into contact with the working material. The points of articulation P of the toggle levers and the rods 10 are so restricted that during the subsequent compression stroke the rams move over equal distances. In the embodiment shown in the left-hand side of the Figure, the articulation point P is guided along an arcuate path during the compression stroke by a holding rod 32 which moves freely through an articulation cup 37 during the idle stroke but which is pivoted, by abutment of the cup with nut M mounted on the rod, about the cup during said compression stroke. By altering the position of cup 37 and the effective length of rod 32, the point in the stroke at which the movement of P is monitored can be adjusted thus affording a control of the distance moved by the rams. In the embodiment shown in the right-hand side of the Figure the holding rod is replaced by a piston-rod slidable within a cylinder pivoted about the press frame 1. In a third embodiment the articulation point P is guided during the appropriate part of the stroke by a bar having suitable arcuate cam surfaces (see Fig. 4, not shown). In a fourth embodiment the required movement is imparted to the point P by a horizontally acting piston-rod horizontally slidable within a cylinder carried by the lower end of a piston-and-cylinder mechanism 7, 8, 9.
GB8782/64A 1962-04-12 1964-03-02 Improvements in or relating to presses Expired GB1061884A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DER0032471 1962-04-12
DER0036420 1963-10-25

Publications (1)

Publication Number Publication Date
GB1061884A true GB1061884A (en) 1967-03-15

Family

ID=25991550

Family Applications (2)

Application Number Title Priority Date Filing Date
GB13255/63A Expired GB1039606A (en) 1962-04-12 1963-04-03 Improvements in or relating to presses
GB8782/64A Expired GB1061884A (en) 1962-04-12 1964-03-02 Improvements in or relating to presses

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB13255/63A Expired GB1039606A (en) 1962-04-12 1963-04-03 Improvements in or relating to presses

Country Status (5)

Country Link
US (2) US3205551A (en)
BE (2) BE630781A (en)
DE (1) DE1459339A1 (en)
GB (2) GB1039606A (en)
NL (2) NL290611A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1459339A1 (en) * 1962-04-12 1968-11-28 Rheinmetall Gmbh Toggle press
DE1579166A1 (en) * 1965-11-30 1970-07-16 Continental Gummi Werke Ag Method and device for opening vulcanization molds on rubber injection molding machines
DE2925416C2 (en) * 1979-06-23 1983-02-24 Werner Ing.(Grad.) 6460 Gelnhausen Leinhaas Knee lever sheet metal cutting press
EP0250610B1 (en) * 1986-06-20 1990-04-04 E. Bruderer Maschinenfabrik AG Toggle, cutting and reshaping press
EP0283532B1 (en) * 1987-03-24 1991-06-05 Leinhaas, Werner, Ing.-grad. Cutting and deforming press with a hydro-mechanical toggle drive
DE59506072D1 (en) * 1994-04-27 1999-07-08 Dorst Masch & Anlagen Process for the production of compacts from powdery material and corresponding press
MXPA02007567A (en) * 2000-02-09 2004-08-23 Hydraform Internat Ltd Block forming apparatus.
US7124618B1 (en) * 2006-03-07 2006-10-24 Gm Global Technology Operations, Inc. Clamp assembly for hydroforming die
CN102773414B (en) * 2012-04-06 2014-08-27 北京时代锐智科贸有限公司 No-riser casting machine
EP2926920A1 (en) * 2014-04-01 2015-10-07 Gräbener Pressensysteme GmbH & Co. KG Pressing device for processing a workpiece
DE102015004108A1 (en) * 2015-03-31 2016-10-06 Hilmar Hubbes Forming process and press
US10703663B2 (en) * 2017-03-20 2020-07-07 Owens-Brockway Glass Container Inc. Operating mechanism for a glassware forming machine

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US420128A (en) * 1890-01-28 Brick-press
US862223A (en) * 1903-06-09 1907-08-06 Robert D Webb Compress.
US1062465A (en) * 1912-12-17 1913-05-20 Hill Cotton Compress Co Ltd Cotton-compress.
US1269769A (en) * 1917-10-03 1918-06-18 Leslie Denman Whitney Hydraulic press.
US2342772A (en) * 1939-01-09 1944-02-29 Sk Wellman Co Stripping apparatus
US2556951A (en) * 1944-06-05 1951-06-12 Stokes Machine Co Powdered material compacting press
US2565522A (en) * 1947-05-05 1951-08-28 Giddings & Lewis Molding machine
FR1109567A (en) * 1954-10-05 1956-01-31 Jean Facon & Cie Ets Double piston injection machine
GB916327A (en) * 1958-04-30 1963-01-23 Shipton & Company Ltd E Improvements in or relating to mould operating mechanism
US3015848A (en) * 1959-08-27 1962-01-09 Hollfritsch Hans Jet molding machines
US3103701A (en) * 1961-02-21 1963-09-17 Producto Machine Company Mold press
DE1459339A1 (en) * 1962-04-12 1968-11-28 Rheinmetall Gmbh Toggle press

Also Published As

Publication number Publication date
US3205551A (en) 1965-09-14
NL302752A (en) 1965-10-25
US3278989A (en) 1966-10-18
BE630781A (en) 1963-07-31
NL290611A (en) 1965-06-10
GB1039606A (en) 1966-08-17
NL132991C (en) 1971-12-15
DE1459339A1 (en) 1968-11-28
BE642573A (en) 1964-05-15
DE1459343A1 (en) 1968-11-28

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