CA2082977A1 - Injection molding machine - Google Patents

Injection molding machine

Info

Publication number
CA2082977A1
CA2082977A1 CA002082977A CA2082977A CA2082977A1 CA 2082977 A1 CA2082977 A1 CA 2082977A1 CA 002082977 A CA002082977 A CA 002082977A CA 2082977 A CA2082977 A CA 2082977A CA 2082977 A1 CA2082977 A1 CA 2082977A1
Authority
CA
Canada
Prior art keywords
injecting
cylinder barrel
advance
retract
injection molding
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.)
Granted
Application number
CA002082977A
Other languages
French (fr)
Other versions
CA2082977C (en
Inventor
Karl Hehl
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.)
Individual
Original Assignee
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6448100&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2082977(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of CA2082977A1 publication Critical patent/CA2082977A1/en
Application granted granted Critical
Publication of CA2082977C publication Critical patent/CA2082977C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B29C45/03—Injection moulding apparatus
    • B29C45/07—Injection moulding apparatus using movable injection units
    • 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
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
    • B29C45/50—Axially movable screw
    • B29C45/5008—Drive means therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

An injection molding machine comprises a carrier block, which contains a plasticizing cylinder and to which hydraulic advance-retract cylinders and hydraulic injecting cylinders are axially coupled. The cylinder barrel of each advance-retract cylinder carries an injecting piston for cooperating with an injecting cylinder barrel which surrounds the advance-retract cylinder barrel. Because each advance-retract cylinder barrel is integrally formed with a radial flange, which constitutes the injecting piston for cooperating with the associated injecting cylinder barrel, the injecting unit will be able to withstand high pressures and its parts can yet economically be made in series.
CA002082977A 1991-12-24 1992-11-16 Injection molding machine Expired - Fee Related CA2082977C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4142927.3 1991-12-24
DE4142927A DE4142927C1 (en) 1991-12-24 1991-12-24

Publications (2)

Publication Number Publication Date
CA2082977A1 true CA2082977A1 (en) 1993-06-25
CA2082977C CA2082977C (en) 2003-09-09

Family

ID=6448100

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002082977A Expired - Fee Related CA2082977C (en) 1991-12-24 1992-11-16 Injection molding machine

Country Status (5)

Country Link
EP (1) EP0552447B1 (en)
JP (1) JPH0737059B2 (en)
AT (1) ATE136491T1 (en)
CA (1) CA2082977C (en)
DE (2) DE4142927C1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4227335C1 (en) * 1992-08-18 1994-03-31 Karl Hehl Plastic injection molding machine
DE4236282C1 (en) * 1992-10-28 1994-01-27 Karl Hehl Screw coupling device on a plastic injection molding machine
DE4317998C2 (en) * 1993-05-29 1995-06-14 Karl Hehl Injection molding unit for a plastic injection molding machine
DE19831482C1 (en) * 1998-07-14 2000-01-20 Karl Hehl Electrohydraulic pressure injection molding unit for e.g. plastic, ceramic and powders
DE102020112590B3 (en) * 2020-05-08 2021-05-20 Arburg Gmbh + Co Kg Injection molding unit for an injection molding machine for processing plastics

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7046626U (en) * 1970-12-17 1971-03-25 Stuebbe Maschinenfab Gmbh Injection unit for injection molding machines
JPS57109620A (en) * 1980-12-26 1982-07-08 Matsushita Electric Ind Co Ltd Molding apparatus of disk like recording medium
DE3447597C1 (en) * 1984-12-28 1986-08-28 Karl 7298 Loßburg Hehl Injection molding unit for a plastic injection molding machine
DE3735419A1 (en) * 1987-10-20 1989-05-03 Karl Hehl PLASTIC INJECTION MOLDING UNIT
DE4014311C1 (en) * 1990-05-04 1991-11-14 Karl 7298 Lossburg De Hehl

Also Published As

Publication number Publication date
JPH0737059B2 (en) 1995-04-26
DE4142927C1 (en) 1993-07-01
JPH06134824A (en) 1994-05-17
EP0552447A1 (en) 1993-07-28
DE59205965D1 (en) 1996-05-15
CA2082977C (en) 2003-09-09
ATE136491T1 (en) 1996-04-15
EP0552447B1 (en) 1996-04-10

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed