JPH01304919A - Molding method for synthetic resin - Google Patents
Molding method for synthetic resinInfo
- Publication number
- JPH01304919A JPH01304919A JP13603388A JP13603388A JPH01304919A JP H01304919 A JPH01304919 A JP H01304919A JP 13603388 A JP13603388 A JP 13603388A JP 13603388 A JP13603388 A JP 13603388A JP H01304919 A JPH01304919 A JP H01304919A
- Authority
- JP
- Japan
- Prior art keywords
- cavity
- synthetic resin
- molded product
- injected
- mold
- 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.)
- Pending
Links
- 229920003002 synthetic resin Polymers 0.000 title claims abstract description 29
- 239000000057 synthetic resin Substances 0.000 title claims abstract description 29
- 238000000465 moulding Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000000463 material Substances 0.000 claims description 5
- 238000002955 isolation Methods 0.000 abstract description 2
- 238000005192 partition Methods 0.000 abstract 3
- 239000012778 molding material Substances 0.000 abstract 1
- -1 polyethylene Polymers 0.000 description 14
- 244000309464 bull Species 0.000 description 11
- 229920001577 copolymer Polymers 0.000 description 8
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 6
- 239000005977 Ethylene Substances 0.000 description 6
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Natural products C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- 229920002126 Acrylic acid copolymer Polymers 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 239000004278 EU approved seasoning Substances 0.000 description 1
- JHWNWJKBPDFINM-UHFFFAOYSA-N Laurolactam Chemical compound O=C1CCCCCCCCCCCN1 JHWNWJKBPDFINM-UHFFFAOYSA-N 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 229920001890 Novodur Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229920000571 Nylon 11 Polymers 0.000 description 1
- 229920000299 Nylon 12 Polymers 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 229920002319 Poly(methyl acrylate) Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 1
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920000052 poly(p-xylylene) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920006380 polyphenylene oxide Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 229920005604 random copolymer Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 235000015067 sauces Nutrition 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002210 silicon-based material Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000004711 α-olefin Substances 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
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1635—Making multilayered or multicoloured articles using displaceable mould parts, e.g. retractable partition between adjacent mould cavities
- B29C45/1639—Removable partitions between adjacent mould cavity portions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/56—Stoppers or lids for bottles, jars, or the like, e.g. closures
- B29L2031/565—Stoppers or lids for bottles, jars, or the like, e.g. closures for containers
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は合成樹脂成形法に係り、特に異種合成樹脂によ
る成形品を一体成形するものに関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a synthetic resin molding method, and particularly to a method for integrally molding molded articles made of different synthetic resins.
近年、ソース等の液体調味料を収容する容器としては合
成樹脂製のものが主流である。また、これに取り付けら
れる注出キャップとしては第７図に示すようなものがあ
る。In recent years, containers made of synthetic resin have become mainstream for storing liquid seasonings such as sauces. Further, there is a pouring cap that can be attached to this, as shown in FIG.
これは略有蓋筒状をなしており、その筒部が容器本体２
０に冠着するようになっている。一方、天蓋部２１はそ
の中央部を弱め線２２で包囲してあり、この弱め線２２
で包囲した部分が除去可能部２３となっている。この除
去可能部２３からはボール２４が立設されており、この
ボール２４の先端にはブルリング２５が設けられている
。This is approximately cylindrical with a lid, and the cylindrical portion is the container body 2.
It is designed to be crowned with 0. On the other hand, the canopy part 21 is surrounded by a line of weakness 22 at its center, and this line of weakness 22
The part surrounded by is the removable part 23. A ball 24 stands up from the removable portion 23, and a bull ring 25 is provided at the tip of the ball 24.
そして、使用に際しては、ブルリング２５を強く引くこ
とにより除去可能部２３が切除され内容物を注出できる
ようになっている。When in use, the removable portion 23 is cut off by strongly pulling the bull ring 25, allowing the contents to be poured out.
ところで、萌紀除去可能部２３はできるだけ柔軟で除去
し易いことが望まれるが、その一方で容器本体との嵌合
部分はできるだけ強靭にしたいという要請がある。しか
し、成形品全体を単一の合成樹脂で成形する限りこれら
の条件を両立することは不可能である。Incidentally, it is desired that the mole-removable portion 23 be as flexible and easy to remove as possible, but on the other hand, there is a demand for the portion that fits into the container body to be as strong as possible. However, it is impossible to satisfy both of these conditions as long as the entire molded product is molded from a single synthetic resin.
そこで、所謂２色成形機を用いて各部分を別の合成樹脂
で成形し、要求を満足することが考えられるが、ブルリ
ング付注出キャップのように形状が複雑なものでは成形
が困難である。Therefore, it may be possible to meet the requirements by molding each part with a different synthetic resin using a so-called two-color molding machine, but it is difficult to mold something with a complex shape like a pouring cap with a bull ring. be.
本発明は前記事項に鑑みてなされたもので、ブルリング
付注出キャップのように形状が複雑なものでも、異種合
成樹脂によって一体成形することができるようにした合
成樹脂成形法を堤供することを技術的課題とする。The present invention has been made in view of the above-mentioned matters, and an object of the present invention is to provide a synthetic resin molding method that allows even products with complex shapes, such as pouring caps with bull rings, to be integrally molded using different types of synthetic resins. is a technical issue.
本発明は前記技術的課題を解決するために、成形品Ａと
成形品Ｂに夫々別の材料を用いてこれらを一体成形する
合成樹脂成形法において以下のような構成とした。In order to solve the above-mentioned technical problem, the present invention has the following configuration in a synthetic resin molding method in which molded product A and molded product B are integrally molded using different materials.
即ち、成形用金型としての雌型１と、これと対をなし、
前記雌型１との間で前記成形品Ａと成形品Ｂとに対応す
るキャビティを有する雄型２と、このキャビティ内にお
いて成形品Ａと成形品Ｂとの界面位置に出抜自在に設け
た隔離板３とを用意する。That is, a female mold 1 as a molding die and a pair thereof,
A male die 2 having a cavity corresponding to the molded product A and the molded product B between the female mold 1 and a male mold 2 provided in the cavity at an interface position between the molded product A and the molded product B so as to be freely removable. A separator plate 3 is prepared.
雌型ｌと雄型２とを組み合わせ、前記隔離板３で隔離し
た状態で形成された第１キャビティＣ内に第１の合成樹
脂を射出充填して成形品Ａを形成する。A molded product A is formed by combining the female mold 1 and the male mold 2, and injecting and filling a first synthetic resin into a first cavity C formed while being separated by the separator plate 3.
その後、前記隔離板３をキャビティ内から後退させて第
２キャビティＤを形成し、この第２キャビティ内に第２
の合成樹脂を射出充填して成形品Ｂを形成する。Thereafter, the separator plate 3 is retreated from inside the cavity to form a second cavity D, and a second cavity D is formed in the second cavity.
A molded article B is formed by injection filling the synthetic resin.
これにより前記成形品Ａと成形品Ｂとを一体に成形する
。As a result, the molded product A and the molded product B are integrally molded.
第１図に示すように、雌型ｌと雄型２とを組み合わせ、
隔離板３で隔離した状態で形成された第１キャビティＣ
内に第１の合成樹脂を射出充填して成形品Ａを形成する
。As shown in Figure 1, the female mold 1 and the male mold 2 are combined,
The first cavity C is formed in a state where it is isolated by the separator 3.
A molded article A is formed by injecting and filling the first synthetic resin inside.
続いて第２図に示すように、隔離板３をキャビティ内か
ら後退させて第２キャビティＤを形成し、この第２キャ
ビティ内に第２の合成樹脂を射出充填して成形品Ｂを形
成する。Subsequently, as shown in FIG. 2, the separator 3 is retreated from inside the cavity to form a second cavity D, and a second synthetic resin is injected and filled into this second cavity to form a molded product B. .
そして、第３図に示すように成形品Ａと成形品Ｂとが一
体に成形される。Then, as shown in FIG. 3, molded product A and molded product B are integrally molded.
本発明の一実施例を第１図ないし第６図に基づいて説明
する。An embodiment of the present invention will be described based on FIGS. 1 to 6.
この実施例はブルリング付き注出キャップに適用したも
のであり、まず完成品の形状から説明すると、全体格有
蓋筒状をなしており、容器本体２゜に冠着する筒部４と
天蓋部５からなっている。This example is applied to a pouring cap with a bull ring. First, the shape of the finished product will be explained. The overall shape is a cylinder with a lid, and it consists of a cylinder part 4 that is crowned at 2 degrees of the container body, and a canopy part. It consists of 5.
天蓋部５はその中央部を弱め線６で包囲してあり、この
弱め線６で包囲した部分が除去可能部７となっている。The canopy part 5 has its central part surrounded by a line of weakness 6, and the part surrounded by the line of weakness 6 forms a removable part 7.
この除去可能部７からはボール８が立設されており、こ
のボール８の先端にはブルリング９が設けられている。A ball 8 stands up from the removable portion 7, and a bull ring 9 is provided at the tip of the ball 8.
また、除去可能部７の周囲には注ぎ口ｌＯが立設されて
いる。そして、前記筒部４の上側縁には反転ヒンジ１１
を介してキャップ１２が取り付けられている。Further, a spout 10 is provided upright around the removable portion 7. A reversing hinge 11 is provided at the upper edge of the cylindrical portion 4.
A cap 12 is attached via.
前記天蓋部５、除去可能部７、ボール８、ブルリング９
、及び注ぎ口１０は軟質合成樹脂であるポリエチレンで
形成され（成形品Ａ）、一方、筒部４、反転ヒンジ１１
、及びキャップ１２は比較的硬質のポリプロピレンで形
成されている （成形品Ｂ）。The canopy part 5, the removable part 7, the ball 8, the bull ring 9
, and the spout 10 are made of polyethylene, which is a soft synthetic resin (molded product A).
, and the cap 12 are made of relatively hard polypropylene (molded product B).
以下、前記構成になるブルリング付き注出キャップの製
法につき説明する。Hereinafter, a method for manufacturing a pouring cap with a bull ring having the above structure will be explained.
まず、成形用金型としての雌型１は第１図において下側
に位置し、一方、これと対をなす雄型２は上側に位置し
ている。そして前記雌型１と雄型２との間で前記成形品
Ａと成形品Ｂとに対応するキャビティが形成される。First, a female mold 1 serving as a molding die is located on the lower side in FIG. 1, while a male mold 2 forming a pair therewith is located on the upper side. Cavities corresponding to the molded products A and B are formed between the female mold 1 and the male mold 2.
雄型２にはキャビティ内において出抜自在となるよう隔
離板３が設けてあり、その位置は成形品へと成形品Ｂと
の界面となるようになっている。A separator plate 3 is provided on the male mold 2 so as to be freely removable within the cavity, and its position is such that it forms an interface between the molded product and the molded product B.
したがって、この隔離板３を下動することによりキャビ
ティ内を２室に仕切ることができ、一方、隔離板３を上
動することによりキャビティが１室となる。Therefore, by moving the separator plate 3 downward, the inside of the cavity can be partitioned into two chambers, while by moving the separator plate 3 upward, the cavity becomes one chamber.
ここで、第１図に示すように、雌型ｌと雄型２とを組み
合わせ、前記隔離板３でキャビティ内を隔離すると前記
天蓋部５、除去可能部７、ボール８、ブルリング９、及
び注ぎ口１０からなる成形品Ａに対応する第１キャビテ
ィＣが形成される。ここで雄型２に形成したスプル２ａ
から第１キャビティＣにポリエチレンを射出充填して成
形品Ａを形成する。Here, as shown in FIG. 1, when the female mold 1 and the male mold 2 are combined and the inside of the cavity is isolated by the separating plate 3, the canopy part 5, the removable part 7, the ball 8, the bull ring 9, and A first cavity C corresponding to the molded article A consisting of the spout 10 is formed. Here, the sprue 2a formed in the male mold 2
Polyethylene is injected and filled into the first cavity C to form a molded product A.
その後、第２図に示すように、前記隔離板３をキャビテ
ィ内から後退させる。これにより成形品Ａに連続する第
２キャビティＤが形成される。Thereafter, as shown in FIG. 2, the separator plate 3 is retreated from inside the cavity. As a result, a second cavity D that is continuous with the molded product A is formed.
第２キャビティＤは筒部４、反転ヒンジ１１、及びキャ
ップ１２の形状に対応しており、雌型１に形成したスプ
ル１ａを介してこの第２キャビティＤ内にポリプロピレ
ンを射出充填して成形品Ｂを形成する。The second cavity D corresponds to the shapes of the cylindrical portion 4, the reversing hinge 11, and the cap 12, and polypropylene is injected and filled into the second cavity D via a sprue 1a formed in the female mold 1 to form a molded product. Form B.
これにより前記成形品Ａに成形品Ｂが一体に成形され、
型抜きをして第３図に示すブルリング付き注出キャップ
を得る。As a result, the molded product B is integrally molded with the molded product A,
The mold is cut out to obtain a pouring cap with a bull ring as shown in FIG.
なお前記した各型は実際には分割型としであるが一般的
な型割りと同様であるため省略する。また、射出充填す
る合成樹脂は、前記したものの他、低密度ポリエチレン
、高密度ポリエチレン、ポリプロピレン、ポリｌ−ブテ
ン、ポリ４−メチル−１−ペンテンあるいはエチレン、
プロピレン、１−ブテン、４−メチル−１−ペンテン等
のα−オレフィン同士のランダムあるいはブロック共重
合体等のポリオレフィン、エチレン、アクリル酸共重合
体、エチレン、酢酸ビニル共重合体、エチレン、ビニル
アルコール共重合体、エヂレン、塩化ビニル共重合体等
のエヂレン、ビニル化合物共重合体、ボリスヂレン、ア
クリロニトリル、スチレン共重合体、ＡＢＳ、メタクリ
ル酸メチル、スチレン共重合体、α−メチルスチレン、
スチレン共重合体等のスチレン系樹脂、ポリ塩化ビニル
、ポリ塩化ビニリデン、塩化ビニル、塩化ビニリデン共
重合体、ポリアクリル酸メチル、ポリメタクリル酸メチ
ル等のポリビニル化合物、ナイロン６、ナイロン６−６
、ナイロン６−１Ｏ、ナイロン１１、ナイロン１２等の
ポリアミド、ポリエチレンテレフタレート、ポリエチレ
ンテレフタレート等の熱可塑性ポリエステル、ポリカー
ボネート、ポリフェニレンオキサイド、その他、ポリパ
ラキシリレン系、ポリモノクロロパラキシリレン系、ポ
リジクロロパラキシリレン系、ポリウレタン系、シリコ
ン系、等から適宜選定して使用することができ、また任
意の色に着色することができるのは勿論である。Note that each of the above-mentioned types is actually a divided type, but since it is the same as a general type of division, the explanation will be omitted. In addition to the above-mentioned synthetic resins, the synthetic resins to be injected and filled include low-density polyethylene, high-density polyethylene, polypropylene, poly-l-butene, poly-4-methyl-1-pentene, or ethylene.
Polyolefins such as random or block copolymers of α-olefins such as propylene, 1-butene, 4-methyl-1-pentene, etc., ethylene, acrylic acid copolymers, ethylene, vinyl acetate copolymers, ethylene, vinyl alcohol Copolymers, ethylene, vinyl compound copolymers such as ethylene, vinyl chloride copolymers, borisdylene, acrylonitrile, styrene copolymers, ABS, methyl methacrylate, styrene copolymers, α-methylstyrene,
Styrenic resins such as styrene copolymers, polyvinyl chloride, polyvinylidene chloride, vinyl chloride, vinylidene chloride copolymers, polyvinyl compounds such as polymethyl acrylate and polymethyl methacrylate, nylon 6, nylon 6-6
, polyamides such as nylon 6-1O, nylon 11, and nylon 12, thermoplastic polyesters such as polyethylene terephthalate and polyethylene terephthalate, polycarbonate, polyphenylene oxide, and others, polyparaxylylene series, polymonochloroparaxylylene series, polydichloroparaxylylene series, etc. It is possible to appropriately select and use a resin-based material, such as a polyurethane-based material, a polyurethane-based material, a silicon-based material, etc., and it goes without saying that it can be colored in any desired color.
本発明によれば、キャビティ内において成形品Ａと成形
品Ｂとの界面位置に隔離板３を出抜自在に設け、この隔
離板３をキャビティ内に突出させることによって隔離さ
れる部分に第１の合成樹脂を射出充填し、続いてこの隔
離を解除して第２の合成樹脂を射出充填しするようにし
たので、複雑な成形品であってら異種合成樹脂により一
体成形することができる。According to the present invention, the separator 3 is removably provided at the interface between the molded product A and the molded product B in the cavity, and the separator 3 is protruded into the cavity so that the first Since the first synthetic resin is injected and filled, the isolation is subsequently released and the second synthetic resin is injected and filled, even complex molded products can be integrally molded using different types of synthetic resins.
第１図ないし第６図は本発明の実施例を示し、第１図及
び第２図は成形過程の断面図、第３図は成形品の断面図
、第４図はその斜視図、第５図はその平面図、第６図は
その底面図、第７図は一般的なブルリング付注出キャッ
プの斜視図である。
１・・・雌型、 ２・・・雄型、３・
・・隔離板、 Ａ、Ｂ・・・成形品、Ｃ
，Ｄ・・・キャビティ。
特許出願人 株式会社 吉野工業所第３図
第４図
第５図
第６図
第７図1 to 6 show embodiments of the present invention, FIGS. 1 and 2 are cross-sectional views of the molding process, FIG. 3 is a cross-sectional view of the molded product, FIG. 4 is a perspective view thereof, and FIG. The figure is a plan view, FIG. 6 is a bottom view, and FIG. 7 is a perspective view of a general pouring cap with a bull ring. 1...female type, 2...male type, 3.
... Separation plate, A, B ... Molded product, C
, D... Cavity. Patent applicant: Yoshino Kogyo Co., Ltd. Figure 3 Figure 4 Figure 5 Figure 6 Figure 7
Claims (1)
らを一体成形する合成樹脂成形法において、成形用金型
としての雌型１と、これと対をなし、前記雌型１との間
で前記成形品Ａと成形品Ｂとに対応するキャビティを有
する雄型２と、このキャビティ内において成形品Ａと成
形品Ｂとの界面位置に出抜自在に設けた隔離板３とを用
意し、雌型１と雄型２とを組み合わせ、前記隔離板３で
隔離した状態で形成された第１キャビティＣ内に第１の
合成樹脂を射出充填して成形品Ａを形成した後、前記隔
離板３をキャビティ内から後退させて第２キャビティＤ
を形成し、この第２キャビティ内に第２の合成樹脂を射
出充填して成形品Ｂを形成し、前記成形品Ａと成形品Ｂ
とを一体に成形することを特徴とする合成樹脂成形法。(1) In a synthetic resin molding method in which a molded article A and a molded article B are integrally molded using different materials, a female mold 1 is used as a molding die, and a female mold 1 is paired with the female mold 1 as a molding die. a male mold 2 having a cavity corresponding to the molded product A and the molded product B between them, and a separator 3 provided in the cavity at an interface position between the molded product A and the molded product B so as to be freely protrusive. After preparing a mold, combining the female mold 1 and the male mold 2, and injecting and filling the first synthetic resin into the first cavity C formed in a state where they were separated by the separator plate 3, a molded product A was formed. , the separator 3 is retracted from inside the cavity to form a second cavity D.
A second synthetic resin is injected and filled into this second cavity to form a molded product B, and the molded product A and molded product B are
A synthetic resin molding method characterized by integrally molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13603388A JPH01304919A (en) | 1988-06-02 | 1988-06-02 | Molding method for synthetic resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13603388A JPH01304919A (en) | 1988-06-02 | 1988-06-02 | Molding method for synthetic resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01304919A true JPH01304919A (en) | 1989-12-08 |
Family
ID=15165610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13603388A Pending JPH01304919A (en) | 1988-06-02 | 1988-06-02 | Molding method for synthetic resin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01304919A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0688652A1 (en) * | 1994-06-06 | 1995-12-27 | Husky Injection Molding Systems Ltd. | Opposed gating injection method |
| US5543104A (en) * | 1993-10-12 | 1996-08-06 | Berry Iowa Corporation | Method for molding a multi-pack container assembly |
| FR2807698A1 (en) * | 2000-04-14 | 2001-10-19 | Cebal | Sequential injection molding in different materials of hinged cap for tube, using mold with gate to control movement of injected materials |
| EP1495851A1 (en) * | 2003-07-08 | 2005-01-12 | Braun Formenbau GmbH | Mould for multi-material injection moulding, in particular two component injection moulding, of plastic parts |
| EP1837150A1 (en) * | 2006-03-20 | 2007-09-26 | Georg Menshen GmbH + Co. KG | Device for the manufacture of container closures by two-component injection moulding |
| WO2017137572A1 (en) * | 2016-02-10 | 2017-08-17 | Z-Werkzeugbau-Gmbh | Method for producing a plastic part in the two-component injection moulding method and plastic injection mould |
| IT201700113283A1 (en) * | 2017-10-09 | 2019-04-09 | Ermo | INJECTION MOLDING EQUIPMENT OF PLASTIC MATERIALS WITH A THIN WALL WITH THICKNESS LOCALLY REDUCED |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS544957A (en) * | 1977-06-14 | 1979-01-16 | Japan Steel Works Ltd | Manufacture of multiicolor and multiimaterial resin moldings |
| JPS5755754B2 (en) * | 1973-07-02 | 1982-11-26 | ||
| JPS58177333A (en) * | 1982-04-13 | 1983-10-18 | Asahi Glass Co Ltd | Method of reaction injection molding |
| JPS6052249B2 (en) * | 1982-01-29 | 1985-11-18 | 日立造船株式会社 | Gate bottom water stop ventilation device |
| JPS61252120A (en) * | 1985-05-02 | 1986-11-10 | Kamaya Kagaku Kogyo Co Ltd | Multi-color vessel and manufacture thereof |
| JPS62273815A (en) * | 1986-05-23 | 1987-11-27 | Sekisui Chem Co Ltd | Injection mold |
| JPH01288417A (en) * | 1988-05-17 | 1989-11-20 | Ichikoh Ind Ltd | Manufacture of bicolor lens |
| JPH01301217A (en) * | 1988-05-30 | 1989-12-05 | Ichikoh Ind Ltd | Manufacture of three color lens |
-
1988
- 1988-06-02 JP JP13603388A patent/JPH01304919A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5755754B2 (en) * | 1973-07-02 | 1982-11-26 | ||
| JPS544957A (en) * | 1977-06-14 | 1979-01-16 | Japan Steel Works Ltd | Manufacture of multiicolor and multiimaterial resin moldings |
| JPS6052249B2 (en) * | 1982-01-29 | 1985-11-18 | 日立造船株式会社 | Gate bottom water stop ventilation device |
| JPS58177333A (en) * | 1982-04-13 | 1983-10-18 | Asahi Glass Co Ltd | Method of reaction injection molding |
| JPS61252120A (en) * | 1985-05-02 | 1986-11-10 | Kamaya Kagaku Kogyo Co Ltd | Multi-color vessel and manufacture thereof |
| JPS62273815A (en) * | 1986-05-23 | 1987-11-27 | Sekisui Chem Co Ltd | Injection mold |
| JPH01288417A (en) * | 1988-05-17 | 1989-11-20 | Ichikoh Ind Ltd | Manufacture of bicolor lens |
| JPH01301217A (en) * | 1988-05-30 | 1989-12-05 | Ichikoh Ind Ltd | Manufacture of three color lens |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5543104A (en) * | 1993-10-12 | 1996-08-06 | Berry Iowa Corporation | Method for molding a multi-pack container assembly |
| EP0688652A1 (en) * | 1994-06-06 | 1995-12-27 | Husky Injection Molding Systems Ltd. | Opposed gating injection method |
| JPH0839609A (en) * | 1994-06-06 | 1996-02-13 | Husky Injection Molding Syst Ltd | Injecting molding machine and injection molding method |
| FR2807698A1 (en) * | 2000-04-14 | 2001-10-19 | Cebal | Sequential injection molding in different materials of hinged cap for tube, using mold with gate to control movement of injected materials |
| WO2001078958A1 (en) * | 2000-04-14 | 2001-10-25 | Cebal S.A. | Multicolour and multiple material injection moulding of a capsule provided with a cap pivoting about a hinge |
| EP1495851A1 (en) * | 2003-07-08 | 2005-01-12 | Braun Formenbau GmbH | Mould for multi-material injection moulding, in particular two component injection moulding, of plastic parts |
| EP1837150A1 (en) * | 2006-03-20 | 2007-09-26 | Georg Menshen GmbH + Co. KG | Device for the manufacture of container closures by two-component injection moulding |
| WO2017137572A1 (en) * | 2016-02-10 | 2017-08-17 | Z-Werkzeugbau-Gmbh | Method for producing a plastic part in the two-component injection moulding method and plastic injection mould |
| IT201700113283A1 (en) * | 2017-10-09 | 2019-04-09 | Ermo | INJECTION MOLDING EQUIPMENT OF PLASTIC MATERIALS WITH A THIN WALL WITH THICKNESS LOCALLY REDUCED |
| FR3072320A1 (en) * | 2017-10-09 | 2019-04-19 | Ermo | INJECTION MOLDING EQUIPMENT OF THIN-WALL PLASTIC ARTICLES WITH REDUCED THICKNESS LOCALLY |
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