ES436879A1 - Transfer moulding apparatus - Google Patents

Transfer moulding apparatus

Info

Publication number
ES436879A1
ES436879A1 ES436879A ES436879A ES436879A1 ES 436879 A1 ES436879 A1 ES 436879A1 ES 436879 A ES436879 A ES 436879A ES 436879 A ES436879 A ES 436879A ES 436879 A1 ES436879 A1 ES 436879A1
Authority
ES
Spain
Prior art keywords
chamber
mold
end plate
paste
primary
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
ES436879A
Other languages
Spanish (es)
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.)
Uniroyal AG
Original Assignee
Uniroyal AG
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 Uniroyal AG filed Critical Uniroyal AG
Publication of ES436879A1 publication Critical patent/ES436879A1/en
Expired 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
    • B29C45/02—Transfer moulding, i.e. transferring the required volume of moulding material by a plunger from a "shot" cavity into a mould cavity

Landscapes

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

Abstract

Improvements in apparatus for molding elastomeric paste, of the type of apparatus comprising, a mold having at least one cavity for shaping and curing elastomeric paste in the shape of the cavity, an injection apparatus for elastomeric paste having a primary chamber where it houses elastomeric paste that can be pressurized to transfer from it; an adapter device to define a secondary chamber in communication with the primary chamber, a perforated end plate carried by the adapter device maintaining a confrontational relationship with the mold, an opening in the end plate intercommunicating the secondary chamber with the mold chamber, being arranged the end plate at least in part in the secondary chamber, and being able to move axially relative thereto, to reduce the axial extension of the chamber, the end plate having an exposed end face engageable with the mold and forming a dividing line with the same, and means to move the injection apparatus and the mold, one relative to the other, to effect the coupling of the mold with the end plate and therefore move the latter towards the interior of the secondary chamber in order to reduce the axial extension of the latter and expel elastomer paste through the end plate into the cavity mold, characterized in that valve means are arranged in the apparatus that interpose between the primary and secondary chambers to allow elastomer paste to flow unidirectionally from the primary chamber to the secondary chamber, these valve means cooperating with the end plate during displacement of the latter into the interior and avoiding the back flow of elastomer paste into the primary chamber from the secondary chamber, despite the appearance of any pressure drop in the primary chamber (Machine-translation by Google Translate, not legally binding)
ES436879A 1974-04-23 1975-04-23 Transfer moulding apparatus Expired ES436879A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742419509 DE2419509C3 (en) 1974-04-23 1974-04-23 Method and device for producing molded parts

Publications (1)

Publication Number Publication Date
ES436879A1 true ES436879A1 (en) 1976-12-01

Family

ID=5913684

Family Applications (1)

Application Number Title Priority Date Filing Date
ES436879A Expired ES436879A1 (en) 1974-04-23 1975-04-23 Transfer moulding apparatus

Country Status (9)

Country Link
JP (1) JPS5818900B2 (en)
CA (1) CA1046718A (en)
CH (1) CH593788A5 (en)
DE (1) DE2419509C3 (en)
ES (1) ES436879A1 (en)
FR (1) FR2268623B1 (en)
GB (1) GB1500816A (en)
IE (1) IE40983B1 (en)
NL (1) NL7504690A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2467684A1 (en) * 1979-10-19 1981-04-30 Solyvent Ventec Transfer moulding press for multicavity rubber moulding tools - where the injection and transfer mould units are independent of mould thickness
EP3505846A4 (en) 2016-08-25 2019-10-16 Mitsubishi Electric Corporation Heat pump device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3121918A (en) * 1960-04-07 1964-02-25 Us Rubber Co Molding apparatus

Also Published As

Publication number Publication date
IE40983L (en) 1975-10-23
DE2419509C3 (en) 1982-03-11
DE2419509A1 (en) 1975-11-13
JPS5818900B2 (en) 1983-04-15
DE2419509B2 (en) 1981-07-23
CA1046718A (en) 1979-01-23
IE40983B1 (en) 1979-09-26
NL7504690A (en) 1975-10-27
FR2268623A1 (en) 1975-11-21
FR2268623B1 (en) 1977-04-15
CH593788A5 (en) 1977-12-15
JPS50146655A (en) 1975-11-25
GB1500816A (en) 1978-02-15

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