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GB1350538A - Hydraulic block press - Google Patents

Hydraulic block press

Info

Publication number
GB1350538A
GB1350538A GB4505772A GB4505772A GB1350538A GB 1350538 A GB1350538 A GB 1350538A GB 4505772 A GB4505772 A GB 4505772A GB 4505772 A GB4505772 A GB 4505772A GB 1350538 A GB1350538 A GB 1350538A
Authority
GB
United Kingdom
Prior art keywords
cylinder
piston
die
lowered
charge
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
GB4505772A
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.)
Werner and Pfleiderer GmbH
Original Assignee
Werner and Pfleiderer 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 Werner and Pfleiderer GmbH filed Critical Werner and Pfleiderer GmbH
Publication of GB1350538A publication Critical patent/GB1350538A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B30B11/08—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 moulds carried by a turntable
    • B30B11/10—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 moulds carried by a turntable intermittently rotated
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/812—Venting

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Powder Metallurgy (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Basic Packing Technique (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

1350538 Compression moulding WERNER & PFLEIDERER 29 Sept 1972 [19 Nov 1971] 45057/72 Heading B5A A press to compact powder or fibrous material has two vertical cylinders 1, 2 pivotally mounted in a frame 3-6 for movement between a filling station and a pressing station where a compacting piston 24 is introduced into a cylinder 2 and a suction device 27 is connected to evacuate the cylinder, each cylinder having a die 13, 14 slidably mounted therein and having a device, Fig. 2, by which the frictional engagement of the die with the cylinder walls is adjusted. Each die has rings 15, 151 engaging the cylinder walls and resilient sealing rings 16, 17. A clamping ring 18 is displaced upwardly by adjusting screws 19 to compress ring 17 and thereby displace ring 15<SP>1</SP> outwardly. A cylinder 1 receives a charge through a filling tube 32 which is slidably mounted on tube 33 and lowered by a ram 34 into cylinder 1, forcing the die 13 to the bottom of the cylinder. A filled cylinder 2 has been pivoted, by a rotary piston 10 engaging an extension 12 of the cylinder mounting 8, to a position beneath a piston 24 which is lowered into contact with the charge. A suction device is lowered by rams 24 and air is evacuated through passage 31 as the die 14 is raised by piston 21 to pre-compress the charge. Piston 21 is fixed by blocking its return flow and piston 24 is lowered to effect final compression. The compressed block is forced out of the cylinder 2 by piston 21 and is discharged by an arm 35 on to a conveyer (not shown). The die 14 remains at the top of cylinder 2 until depressed by tube 32.
GB4505772A 1971-11-19 1972-09-29 Hydraulic block press Expired GB1350538A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2157465A DE2157465C3 (en) 1971-11-19 1971-11-19 Filling device for a hydraulic block press

Publications (1)

Publication Number Publication Date
GB1350538A true GB1350538A (en) 1974-04-18

Family

ID=5825579

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4505772A Expired GB1350538A (en) 1971-11-19 1972-09-29 Hydraulic block press

Country Status (4)

Country Link
US (1) US3804570A (en)
JP (1) JPS5246375B2 (en)
DE (1) DE2157465C3 (en)
GB (1) GB1350538A (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3942755A (en) * 1974-10-09 1976-03-09 Pioneer Plastic Containers Limited Moulds for use on injection moulding machines
DE2911384C2 (en) * 1979-03-23 1980-10-09 Werner & Pfleiderer, 7000 Stuttgart Device for filling explosive powdery material into a press die
DE2914201C2 (en) * 1979-04-07 1982-12-02 Wilhelm Fette Gmbh, 2053 Schwarzenbek Tablet machine
JPS59128161A (en) * 1983-01-07 1984-07-24 Canon Inc Sheet sorter
US4518335A (en) * 1984-03-14 1985-05-21 Allied Corporation Dilatant mold and dilatant molding apparatus
US4559004A (en) * 1984-08-24 1985-12-17 Societe Anonyme De Recherche Et D'etudes Techniques Apparatus for manufacturing bricks of compressed earth
JPH0636076B2 (en) * 1985-04-12 1994-05-11 株式会社日立製作所 Radioactive waste granulator
US6431847B1 (en) 1999-04-06 2002-08-13 Woodshed Technologies, Inc. Apparatus for compounding resin and fiber
US6186769B1 (en) * 1999-04-06 2001-02-13 Woodshed Technologies Resin and fiber compounding apparatus for molding operations
US6875385B2 (en) * 1999-04-06 2005-04-05 Woodshed Technologies, Inc. Method of compounding resin and fiber
US6425433B1 (en) 2001-02-17 2002-07-30 John W. Hayes Die casting vacuum apparatus
US7122143B2 (en) * 2001-09-28 2006-10-17 Mcneil-Ppc, Inc. Methods for manufacturing dosage forms
US6982094B2 (en) * 2001-09-28 2006-01-03 Mcneil-Ppc, Inc. Systems, methods and apparatuses for manufacturing dosage forms
US7217381B2 (en) * 2001-09-28 2007-05-15 Mcneil-Ppc, Inc. Systems, methods and apparatuses for manufacturing dosage forms
US6742646B2 (en) * 2001-09-28 2004-06-01 Mcneil-Ppc, Inc. Systems, methods and apparatuses for manufacturing dosage forms
US7323192B2 (en) * 2001-09-28 2008-01-29 Mcneil-Ppc, Inc. Immediate release tablet
US6837696B2 (en) * 2001-09-28 2005-01-04 Mcneil-Ppc, Inc. Apparatus for manufacturing dosage forms
EP1429738B1 (en) * 2001-09-28 2007-10-31 McNEIL-PPC, INC. Modified release dosage forms
US7838026B2 (en) 2001-09-28 2010-11-23 Mcneil-Ppc, Inc. Burst-release polymer composition and dosage forms comprising the same
US6767200B2 (en) * 2001-09-28 2004-07-27 Mcneil-Ppc, Inc. Systems, methods and apparatuses for manufacturing dosage forms
US20050074514A1 (en) * 2003-10-02 2005-04-07 Anderson Oliver B. Zero cycle molding systems, methods and apparatuses for manufacturing dosage forms
US8673352B2 (en) * 2005-04-15 2014-03-18 Mcneil-Ppc, Inc. Modified release dosage form
DE102018204440A1 (en) 2018-03-22 2019-09-26 Glatt Maschinen- Und Apparatebau Ag Filling unit and method for filling cavities of a tablet press with a filling material to be pressed

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2481232A (en) * 1944-06-23 1949-09-06 Plessey Co Ltd Powder metallurgy
US2598016A (en) * 1950-04-17 1952-05-27 Hpm Dev Corp Apparatus for hot pressing powdered metals
US2904835A (en) * 1956-12-10 1959-09-22 Ethyl Corp Sludge deliquefying-compacting press
US3225410A (en) * 1959-12-09 1965-12-28 Wehr Corp Hammer press
US3191232A (en) * 1961-12-07 1965-06-29 Haller John Hydraulic compacting press
US3209057A (en) * 1962-06-04 1965-09-28 Benjamin Lassman & Son Pressure molding of dry material
US3172156A (en) * 1962-09-06 1965-03-09 Cincinnati Shaper Co Compacting press
US3613166A (en) * 1969-06-26 1971-10-19 Dresser Ind Compaction of particulate matter
US3677674A (en) * 1971-03-09 1972-07-18 Nat Forge Co High production isostatic molding device

Also Published As

Publication number Publication date
DE2157465A1 (en) 1973-06-07
JPS5246375B2 (en) 1977-11-24
US3804570A (en) 1974-04-16
DE2157465B2 (en) 1974-09-05
JPS49100661A (en) 1974-09-24
DE2157465C3 (en) 1975-04-24

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee