GB1357956A - Synthetic plastics processing machine especially an injection- moulding machine or blow moulding machine with cooperating hydraulic cylinders - Google Patents

Synthetic plastics processing machine especially an injection- moulding machine or blow moulding machine with cooperating hydraulic cylinders

Info

Publication number
GB1357956A
GB1357956A GB3880471A GB3880471A GB1357956A GB 1357956 A GB1357956 A GB 1357956A GB 3880471 A GB3880471 A GB 3880471A GB 3880471 A GB3880471 A GB 3880471A GB 1357956 A GB1357956 A GB 1357956A
Authority
GB
United Kingdom
Prior art keywords
cylinder
piston
moulding machine
cylinders
blow
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
GB3880471A
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.)
Stuebbe Maschf GmbH
Original Assignee
Stuebbe Maschf 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 Stuebbe Maschf GmbH filed Critical Stuebbe Maschf GmbH
Publication of GB1357956A publication Critical patent/GB1357956A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/22—Synchronisation of the movement of two or more servomotors
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/4005—Ejector constructions; Ejector operating mechanisms
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/64—Mould opening, closing or clamping devices
    • B29C45/67—Mould opening, closing or clamping devices hydraulic
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/56—Opening, closing or clamping means
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/64—Mould opening, closing or clamping devices
    • B29C45/67—Mould opening, closing or clamping devices hydraulic
    • B29C2045/6785—Mould opening, closing or clamping devices hydraulic interconnecting two cylinders to supply fluid from one cylinder to the other during movement of the pistons

Abstract

1357956 Injection moulding and blowmoulding machines; hydraulic presses STUBBE MASCHINENFABRIK GmbH 18 Aug 1971 [19 Aug 1970] 38804/71 Headings B5A and B5F The invention relates to an injection moulding or blow-moulding machine employing two or more cylinders 1, 2, 3 having different diameters, and piston rods 4, 5, 6 on one side which carry out synchronous strokes, wherein in each case the circular piston face 14 of a smaller cylinder 2 has the same area as and is connected to the annular piston face 13 of the next larger cylinder, and the circular piston face 12 of the largest cylinder 1 and the annular piston face 17 of the smallest cylinder 3 are alternatively connectibie to pressure medium supply and return conduits 24, 26. According to the invention the diameters of each larger cylinder, the next smaller cylinder and the piston rod of the larger cylinder represent a set of Pythagorean numbers or a whole number multiple thereof. The arrangement provides uniform movement of the piston rods and the invention enables the pistons, cylinders &c. to be selected from standard sized components. The invention can be used for mould closing (Fig. 5, not shown) or for operating ejector rods (Figs. 3, 4, not shown). In Fig. 6 (not shown) the two halves (73, 74) of a blow mould arc synchronized so as to meet one another exactly in line with the blowing head (72). The invention may be applied to only two or even four or more hydraulic cylinders. Compensation for leakage from the hydraulic system can be provided by opening shut-off valves 27, 28. This can be effected automatically at every piston stroke or after any desired number of strokes by means of the circuit shown in Fig. 2 (not shown).
GB3880471A 1970-08-19 1971-08-18 Synthetic plastics processing machine especially an injection- moulding machine or blow moulding machine with cooperating hydraulic cylinders Expired GB1357956A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702041185 DE2041185C3 (en) 1970-08-19 1970-08-19 Plastics processing machine, in particular injection molding machine or blow molding machine, with cooperating and synchronous strokes executing hydraulic piston-cylinder units

Publications (1)

Publication Number Publication Date
GB1357956A true GB1357956A (en) 1974-06-26

Family

ID=5780180

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3880471A Expired GB1357956A (en) 1970-08-19 1971-08-18 Synthetic plastics processing machine especially an injection- moulding machine or blow moulding machine with cooperating hydraulic cylinders

Country Status (4)

Country Link
CH (1) CH523136A (en)
DE (1) DE2041185C3 (en)
FR (1) FR2102362A1 (en)
GB (1) GB1357956A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998055289A1 (en) * 1997-06-02 1998-12-10 Becfab Equipment Pty. Ltd. Press
AU720880B2 (en) * 1997-06-02 2000-06-15 Itw Australia Pty Ltd Press
US6394787B1 (en) 1999-05-31 2002-05-28 A. K. Technical Laboratory, Inc. Mold clamping apparatus
EP1388404A1 (en) * 2001-09-03 2004-02-11 Bosch Rexroth AG Hydraulic assembly for an injection moulding machine
JP2009108894A (en) * 2007-10-29 2009-05-21 Kiyoyuki Hosoda System including a plurality of drive cylinders
CN101799024A (en) * 2010-03-30 2010-08-11 中国船舶重工集团公司第七〇二研究所 Synchronous hydraulic transmission system
CN101865169A (en) * 2010-06-09 2010-10-20 北京市三一重机有限公司 Synchronous drive control system and engineering machinery
CN104100587A (en) * 2014-06-09 2014-10-15 烟台宝钢钢管有限责任公司 Self-correction dual-hydraulic cylinder synchronizing system

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH601676A5 (en) * 1976-11-26 1978-07-14 Kempf & Co Ag
FR2608142B1 (en) * 1986-12-16 1989-03-31 Ouest Hydraulique Mecanique HYDRAULIC MOUNTING AND LOWERING DEVICE OF A BEAM OR A PLATFORM PARALLEL TO A REFERENCE PLAN
IT1244925B (en) * 1991-02-19 1994-09-13 Pomezia Iniziative Ind IMPROVEMENT IN THE COMPLEXES OF HYDRAULIC CYLINDERS ACTUATORS WITH SYNCHRONIZED FORWARD / RETURN PISTONS, EVEN IN THE PRESENCE OF UNSTRUCTED LOADS.
NL9200589A (en) * 1992-03-30 1993-10-18 Meijer Sjoerd HYDRAULIC DEVICE WITH SIMILAR AUGERS.
CN102836942A (en) * 2012-09-24 2012-12-26 中南大学 High-response hydraulic synchronizing circuit for compensating dead zone of hydraulic valve
CN106015159B (en) * 2016-07-12 2019-01-18 天津优瑞纳斯液压机械有限公司 A kind of non-isometric(al) synchronous distributor hydraulic cylinder
CN108488122A (en) * 2018-03-30 2018-09-04 江苏恒立液压科技有限公司 Multi-cylinder synchronization hydraulic system

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998055289A1 (en) * 1997-06-02 1998-12-10 Becfab Equipment Pty. Ltd. Press
AU720880B2 (en) * 1997-06-02 2000-06-15 Itw Australia Pty Ltd Press
US6394787B1 (en) 1999-05-31 2002-05-28 A. K. Technical Laboratory, Inc. Mold clamping apparatus
EP1388404A1 (en) * 2001-09-03 2004-02-11 Bosch Rexroth AG Hydraulic assembly for an injection moulding machine
JP2009108894A (en) * 2007-10-29 2009-05-21 Kiyoyuki Hosoda System including a plurality of drive cylinders
CN101799024A (en) * 2010-03-30 2010-08-11 中国船舶重工集团公司第七〇二研究所 Synchronous hydraulic transmission system
CN101865169A (en) * 2010-06-09 2010-10-20 北京市三一重机有限公司 Synchronous drive control system and engineering machinery
CN104100587A (en) * 2014-06-09 2014-10-15 烟台宝钢钢管有限责任公司 Self-correction dual-hydraulic cylinder synchronizing system

Also Published As

Publication number Publication date
DE2041185B2 (en) 1975-01-30
DE2041185A1 (en) 1972-02-24
FR2102362A1 (en) 1972-04-07
CH523136A (en) 1972-05-31
DE2041185C3 (en) 1975-09-18

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees