ES436879A1 - Transfer moulding apparatus - Google Patents
Transfer moulding apparatusInfo
- 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
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)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (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)
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)
| 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 |
| US10852007B2 (en) | 2016-08-25 | 2020-12-01 | Mitsubishi Electric Corporation | Heat pump device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3121918A (en) * | 1960-04-07 | 1964-02-25 | Us Rubber Co | Molding apparatus |
-
1974
- 1974-04-23 DE DE19742419509 patent/DE2419509C3/en not_active Expired
-
1975
- 1975-04-07 CA CA223,931A patent/CA1046718A/en not_active Expired
- 1975-04-07 GB GB1409775A patent/GB1500816A/en not_active Expired
- 1975-04-11 IE IE82675A patent/IE40983B1/en unknown
- 1975-04-16 FR FR7511834A patent/FR2268623B1/fr not_active Expired
- 1975-04-21 NL NL7504690A patent/NL7504690A/en not_active Application Discontinuation
- 1975-04-22 JP JP4904575A patent/JPS5818900B2/en not_active Expired
- 1975-04-23 CH CH515075A patent/CH593788A5/xx not_active IP Right Cessation
- 1975-04-23 ES ES436879A patent/ES436879A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2419509B2 (en) | 1981-07-23 |
| IE40983L (en) | 1975-10-23 |
| JPS5818900B2 (en) | 1983-04-15 |
| GB1500816A (en) | 1978-02-15 |
| DE2419509A1 (en) | 1975-11-13 |
| CH593788A5 (en) | 1977-12-15 |
| IE40983B1 (en) | 1979-09-26 |
| DE2419509C3 (en) | 1982-03-11 |
| FR2268623B1 (en) | 1977-04-15 |
| NL7504690A (en) | 1975-10-27 |
| FR2268623A1 (en) | 1975-11-21 |
| CA1046718A (en) | 1979-01-23 |
| JPS50146655A (en) | 1975-11-25 |
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