FR2021870A1 - Mould closing cylinder has stepped piston - in piston borehole - Google Patents

Mould closing cylinder has stepped piston - in piston borehole

Info

Publication number
FR2021870A1
FR2021870A1 FR6934393A FR6934393A FR2021870A1 FR 2021870 A1 FR2021870 A1 FR 2021870A1 FR 6934393 A FR6934393 A FR 6934393A FR 6934393 A FR6934393 A FR 6934393A FR 2021870 A1 FR2021870 A1 FR 2021870A1
Authority
FR
France
Prior art keywords
piston
closing cylinder
stepped
borehole
mould closing
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.)
Withdrawn
Application number
FR6934393A
Other languages
English (en)
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.)
RICH HOFHEINZ ET CO
Original Assignee
RICH HOFHEINZ ET CO
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 RICH HOFHEINZ ET CO filed Critical RICH HOFHEINZ ET CO
Publication of FR2021870A1 publication Critical patent/FR2021870A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B29C45/6707—Mould opening, closing or clamping devices hydraulic without relative movement between the piston and the cylinder of the clamping device during the mould opening or closing movement
    • 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1409—Characterised by the construction of the motor unit of the straight-cylinder type with two or more independently movable working pistons

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
FR6934393A 1968-10-30 1969-10-08 Mould closing cylinder has stepped piston - in piston borehole Withdrawn FR2021870A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681805938 DE1805938C3 (de) 1968-10-30 1968-10-30 Hydraulischer Formschließzylinder für Spritzgieß- oder Druckgießmaschinen

Publications (1)

Publication Number Publication Date
FR2021870A1 true FR2021870A1 (en) 1970-07-24

Family

ID=5711882

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6934393A Withdrawn FR2021870A1 (en) 1968-10-30 1969-10-08 Mould closing cylinder has stepped piston - in piston borehole

Country Status (3)

Country Link
CH (1) CH486970A (fr)
DE (1) DE1805938C3 (fr)
FR (1) FR2021870A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0058926A3 (en) * 1981-02-25 1982-10-13 Krauss-Maffei Aktiengesellschaft Mould closing means
EP1310346A1 (fr) * 2001-11-08 2003-05-14 Bosch Rexroth AG Dispositif de fermeture du moule pour une machine à injecter de matières plastiques

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2834895C2 (de) 1978-08-09 1983-10-20 Dr. Boy GmbH, 5466 Neustadt Hydraulische Formschließvorrichtung mit einem Druckübersetzer
US5204047A (en) * 1986-10-31 1993-04-20 Krauss Maffei Aktiengesellschaft Method of using a mold closing apparatus for an injection molding machine
DE3637175A1 (de) * 1986-10-31 1988-05-11 Krauss Maffei Ag Formschliessvorrichtung fuer eine spritzgiessmaschine
DE4117852C2 (de) * 1991-05-31 1994-12-01 Hemscheidt Maschf Hermann Hydraulische Schließvorrichtung für eine Spritzgießform
DE19535927C1 (de) * 1995-09-27 1997-01-23 Hemscheidt Maschtech Schwerin Flüssigkeitstank für einen hydraulischen Schließzylinder einer Formschließeinrichtung
DE10215072A1 (de) 2002-04-05 2003-10-30 Billion Sa Hydraulikeinrichtung zum Hin- und Herbewegen eines Maschinenteils
CN117644606B (zh) * 2024-01-30 2024-04-09 合肥荣丰包装制品有限公司 一种eps泡沫箱生产用压合装置
CN120402462B (zh) * 2025-07-02 2025-10-24 湖南协力液压有限公司 一种硫化装备锁合模液压缸

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0058926A3 (en) * 1981-02-25 1982-10-13 Krauss-Maffei Aktiengesellschaft Mould closing means
EP1310346A1 (fr) * 2001-11-08 2003-05-14 Bosch Rexroth AG Dispositif de fermeture du moule pour une machine à injecter de matières plastiques

Also Published As

Publication number Publication date
CH486970A (de) 1970-03-15
DE1805938B2 (de) 1973-07-05
DE1805938A1 (de) 1970-07-30
DE1805938C3 (de) 1974-02-14

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse