WO1988000121A1 - Protective mechanism against leakage of resin on stationary side parting in mold device for double injection molding - Google Patents
Protective mechanism against leakage of resin on stationary side parting in mold device for double injection molding Download PDFInfo
- Publication number
- WO1988000121A1 WO1988000121A1 PCT/JP1987/000089 JP8700089W WO8800121A1 WO 1988000121 A1 WO1988000121 A1 WO 1988000121A1 JP 8700089 W JP8700089 W JP 8700089W WO 8800121 A1 WO8800121 A1 WO 8800121A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- injection molding
- double
- molten resin
- manifold
- resin
- Prior art date
Links
- 238000001746 injection moulding Methods 0.000 title claims abstract description 17
- 239000011347 resin Substances 0.000 title claims abstract description 17
- 229920005989 resin Polymers 0.000 title claims abstract description 17
- 230000009979 protective mechanism Effects 0.000 title abstract 2
- 238000002347 injection Methods 0.000 claims abstract description 14
- 239000007924 injection Substances 0.000 claims abstract description 14
- 238000000465 moulding Methods 0.000 claims description 12
- 238000005553 drilling Methods 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000005070 ripening Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
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
- B29C45/26—Moulds
- B29C45/32—Moulds having several axially spaced mould cavities, i.e. for making several separated articles
- B29C45/322—Runner systems for distributing the moulding material to the stacked mould cavities
Definitions
- the present invention relates to a mold device for double-sided injection molding, that is, a mold device for stack molding, in which a center portion of each of a movable side and a fixed side of one side of the mold apparatus is arranged.
- a call that allows the extension nozzle for filling the molten resin to be fitted through and penetrates, and forms a fixed volume at the appropriate position of the runner gate part formed inside the manifold located at the center The present invention relates to a fixed-side partition resin leakage prevention mechanism in which a gate portion is formed and formed.
- a cylinder head In order to avoid stack molding of the general-purpose injection (model type), which is currently most frequently used in the molding industry, with the original model, gold is an absolute condition.
- a cylinder head In the center of the mold, a cylinder head is provided by an extension nozzle that passes through the center of the mold, including a part on one side of the injection cylinder, equipped with a face-to-face injection process. It must also communicate with the injection block. ”Thus, the molten resin is guided to the central injection block and injected into the cavity plates on both sides, but after cooling and hardening.
- the present invention relates to a double-sided injection molding mold apparatus having a space portion that can be previously expected on both sides of the axis of symmetry (the dimensions are the position of the product engraving part, the separation between the parts, the quantity, the resin material used, and the molding conditions). [Dimensions determined by factors such as temperature, pressing force, timing, alone:)...] are maintained and opposed to each other.
- the extension nozzle for supplying the molten resin from the injection cylinder for injection is penetrated and fitted, and the manifold is clamped in the above-mentioned listening interval, and the manifold is inserted.
- FIG. 1 is a cross-sectional front view of the preferred double-sided injection molding apparatus in which a part of the preferred double-sided injection molding apparatus is omitted, and FIGS. 2 to 4 show the preferred double-sided injection molding apparatus.
- Fig. 2 shows the mold in the closed state
- Fig. 3 shows the partially opened state
- Fig. 4 shows the product and runner falling in the fully opened state. is there.
- FIG. 1 is a cross-sectional front view in which a part of a preferred double-sided injection molding die apparatus (• M ⁇ A) according to the present invention is omitted, and both sides of the symmetry ⁇ (Y ⁇ ) are previously formed.
- the cold gate part is also formed according to the configuration, and during the double-sided injection molding work, the mold equipment for double-sided injection molding (S ⁇ M ⁇ A) Prevents the molten resin from becoming shallower than the fixed-side parting (P),...
- the structure is such that -m is the parting line of both cavity plates, (G) is the product, (R) is the runner, (D) indicates a drive pin, and (J * P) indicates an ejector plate.
- the mold apparatus according to the present invention has an excellent practical effect capable of solving the difficult conditions of the two major conflicts that the molding industry can currently attain: It promises an immeasurable contribution to improving the productivity of the molding industry.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61/097439U | 1986-06-24 | ||
| JP9743986U JPS633424U (enrdf_load_stackoverflow) | 1986-06-24 | 1986-06-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1988000121A1 true WO1988000121A1 (en) | 1988-01-14 |
Family
ID=14192384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP1987/000089 WO1988000121A1 (en) | 1986-06-24 | 1987-02-13 | Protective mechanism against leakage of resin on stationary side parting in mold device for double injection molding |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS633424U (enrdf_load_stackoverflow) |
| WO (1) | WO1988000121A1 (enrdf_load_stackoverflow) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5334380Y1 (enrdf_load_stackoverflow) * | 1971-02-18 | 1978-08-23 | ||
| JPS5848413U (ja) * | 1981-09-29 | 1983-04-01 | 池上金型工業株式会社 | 多重成形金型 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5848413B2 (ja) * | 1974-11-15 | 1983-10-28 | ベ−カ− パ−キンス ホ−ルデイングス リミテツド | 品物の連続供給送込装置 |
| JPS5912923Y2 (ja) * | 1977-08-08 | 1984-04-18 | 秀太郎 井上 | 玉遊技器 |
| JPS5814728A (ja) * | 1981-07-20 | 1983-01-27 | Shoichi Teraoka | 多段重ね合せ式成形金型 |
-
1986
- 1986-06-24 JP JP9743986U patent/JPS633424U/ja active Pending
-
1987
- 1987-02-13 WO PCT/JP1987/000089 patent/WO1988000121A1/ja unknown
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5334380Y1 (enrdf_load_stackoverflow) * | 1971-02-18 | 1978-08-23 | ||
| JPS5848413U (ja) * | 1981-09-29 | 1983-04-01 | 池上金型工業株式会社 | 多重成形金型 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS633424U (enrdf_load_stackoverflow) | 1988-01-11 |
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