JPH0478513A - Method and device for molding heterochromatic molded form - Google Patents
Method and device for molding heterochromatic molded formInfo
- Publication number
- JPH0478513A JPH0478513A JP19294090A JP19294090A JPH0478513A JP H0478513 A JPH0478513 A JP H0478513A JP 19294090 A JP19294090 A JP 19294090A JP 19294090 A JP19294090 A JP 19294090A JP H0478513 A JPH0478513 A JP H0478513A
- Authority
- JP
- Japan
- Prior art keywords
- cavity
- molded product
- floating piece
- molding
- 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.)
- Pending
Links
- 238000000465 moulding Methods 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims description 21
- 238000007667 floating Methods 0.000 claims abstract description 83
- 239000011347 resin Substances 0.000 claims abstract description 20
- 229920005989 resin Polymers 0.000 claims abstract description 20
- 238000001746 injection moulding Methods 0.000 claims abstract description 10
- 125000006850 spacer group Chemical group 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 abstract description 4
- 239000003086 colorant Substances 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002344 surface layer 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
-
- 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
- B29C45/0017—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor moulding interconnected elements which are movable with respect to one another, e.g. chains or hinges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
- B29K2995/002—Coloured
- B29K2995/0021—Multi-coloured
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)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は第1キャビティ及び第2キャビティに異色の
溶融樹脂を順次に射出充填して、一次成形品と二次成形
品が一体化した異色の成形品を得る成形方法及びその装
置に関するものである。[Detailed description of the invention] [Industrial application field] This invention is a unique product in which a primary molded product and a secondary molded product are integrated by sequentially injecting and filling a first cavity and a second cavity with a unique molten resin. The present invention relates to a molding method and apparatus for obtaining a molded article.
従来、前記のような異色成形品の成形方法及びその装置
として、特開昭63−293023号公報に開示の技術
が知られている。Conventionally, a technique disclosed in Japanese Patent Laid-Open No. 63-293023 has been known as a method and apparatus for molding a uniquely colored molded article as described above.
前記従来の成形方法及びその装置は、固定型板(雌型)
の一部に設置した成形品離型方向に移動自在な第1及び
第2の可動型体を有し、この第1可動型体及び第2可動
型体を可動型板(雄型)の方向に突出させて第2キャビ
ティを閉塞した状態で、第1キャビティ(雌型である固
定型板と雄型である可動型板との間に残り空隙として形
成される)に溶融樹脂を射出充填して一次成形を行ない
、次いで第1可動型体及び第2可動型体を後退させて、
一次成形品の内側に開口する第2キャビティと、後退し
た第2可動型体と一次成形品との間に確保される湯道と
を形成し、この湯道から第2キャビティ内に異色の溶融
樹脂を射出充填して二次成形するようになっているので
、二次成形時に一次成形品と第2可動型体との間に二次
材料注入用の湯道を形成する必要があり、このため第1
可動型体と第2可動型体の動きを連結ビン等で連動させ
なければならず、それだけ装置構造が複雑になる。しか
も、一次成形品と第2可動型体との間に二次材料注入用
の湯道を形成すると、製品外郭部として成形した一次成
形品の表層部(湯道相当部分)に製品内側部として成形
した二次成形品の異色材料が部分的に被ってしまうとい
う色混ざり(部分混色)の問題が生じ、製品外郭部の中
央部にデザイン化された異色模様等の製品内側部を部分
混色しないように出現させる異色成形を行なうことは不
可能であった。The conventional molding method and device include a fixed mold plate (female mold)
The first movable mold body and the second movable mold body are installed in a part of the molded product and are movable in the mold release direction, and the first movable mold body and the second movable mold body are moved in the direction of the movable mold plate (male mold). With the second cavity protruded and the second cavity closed, molten resin is injected and filled into the first cavity (formed as a gap remaining between the female fixed mold plate and the male movable mold plate). perform primary forming, then retreat the first movable mold body and the second movable mold body,
A second cavity that opens inside the primary molded product and a runner secured between the retreated second movable mold body and the primary molded product are formed, and a unique melting liquid flows from this runner into the second cavity. Since secondary molding is performed by injection filling the resin, it is necessary to form a runner for injecting the secondary material between the primary molded product and the second movable mold during secondary molding. Tame 1
The movements of the movable mold body and the second movable mold body must be linked using a connecting bottle or the like, which increases the complexity of the device structure. Moreover, if a runner for secondary material injection is formed between the primary molded product and the second movable mold body, the surface layer (corresponding to the runner) of the primary molded product formed as the outer shell of the product can be used as the inner part of the product. There is a problem of color mixing (partial color mixing) in which different colored materials of the secondary molded product partially overlap, so do not partially mix colors on the inner part of the product such as a different colored pattern designed in the center of the outer part of the product. It was impossible to create a unique color that would appear like this.
この発明は前記従来の問題を解消するためになされたも
ので、その目的は比較的簡単な装りt措造でありながら
、製品外郭部の中央にデザイン化された異色模様等の製
品内側部を部分混色しないように出現させた異色の成形
品を同−金型内で成形することができる異色成形品の成
形方法及びその装置を提供することにある。This invention was made in order to solve the above-mentioned conventional problems, and its purpose is to provide a relatively simple design and structure, but the inner part of the product has a unique pattern designed in the center of the outer part of the product. An object of the present invention is to provide a method for molding a molded article with different colors and an apparatus therefor, in which molded articles with different colors can be molded in the same mold without causing partial color mixing.
前記の目的を達成するために、本発明の異色成形品の成
形方法は、第1キャビティ及び第2キャビティに異色の
溶融樹脂を順次に射出充填して、一次成形品と二次成形
品が一体化した異色の成形品を得るようにしたものであ
って、第2キャビティを型閉じ形成する固定側型板及び
可動側型板を含む開閉可能な金型装置の一部に、第2キ
ャビティが開口する浮駒内装穴を設け、この浮駒内装穴
に側面開口の第1キャビティを形成する開閉可能な浮駒
対を一次成形位置と二次成形位置との間の移動できるよ
うに組込み、この浮駒対を一次成形位置に移動停止させ
た状態で第1キャビティに溶融樹脂を射出充填するピン
ゲート方式の一次成形を行ない、この一次成形品の硬化
後に前記浮駒対を一次成形品の外周部が第2キャビティ
の穴側開口部を閉塞する二次成形位置に移動させ、この
浮駒対の二次成形位置への移動停止状態で第2キャビテ
ィに異色の溶融樹脂を射出充填する二次成形を行なって
、一次成形品と二次成形品が一体化した異色の成形品を
成形することを特徴とする。In order to achieve the above object, the method for molding a different-colored molded product of the present invention involves sequentially injecting and filling a first cavity and a second cavity with different-colored molten resin, so that the primary molded product and the secondary molded product are integrated. The second cavity is formed in a part of an openable and closable mold device including a fixed side mold plate and a movable side mold plate that form a closed mold of the second cavity. A floating piece inner hole to be opened is provided, and a pair of floating pieces which can be opened and closed and which form a side-opening first cavity are incorporated into the floating piece inner hole so as to be movable between a primary molding position and a secondary molding position. Primary molding using a pin gate method is performed in which molten resin is injected into the first cavity while the floating piece pair is moved and stopped at the primary molding position, and after the primary molded product is cured, the floating piece pair is moved to the outer peripheral part of the primary molded product. is moved to the secondary molding position where it closes the opening on the hole side of the second cavity, and while the floating piece pair is stopped moving to the secondary molding position, the second cavity is injected and filled with a different color molten resin.Secondary molding The method is characterized in that it molds a unique molded product in which the primary molded product and the secondary molded product are integrated.
また、本発明の異色成形品の成形装置は、第1キャビテ
ィ及び第2キャビティに異色の溶融樹脂を順次に射出充
填して、一次成形品と二次成形品が一体化した異色の成
形品を得るものであって、二次成形品を成形する開閉可
能な金型装置を、射出成形機の固定盤及び可動盤に取付
けられる固定例数付板及び可動側取付板と、スプールブ
ツシュを白゛シ固定側取付板に接離するストリッパ板と
、このストリッパ板に固定ベースを介して止着される固
定側型板と、可動側取付板にスペーサブロック及び受板
を介して止着され固定側型板との間に第2キャビティを
型閉じ形成する可動側型板とから構成したこと、前記固
定ベースと固定側型板及び可動側型板の一部に第2キャ
ビティが開口する浮駒内装穴を設け、この浮駒内装穴に
スプールブツシュが嵌入される第1浮駒と、この第1浮
駒との間に側面開口の第1キャビティを駒閉じ形成する
第2浮駒とからなる開閉可能な浮駒対を浮駒内装穴の内
壁面と密接した状態で金型開閉方向に移動できるように
組込み、この浮駒対をスペーサブロックに組込んだ浮駒
作動機構によって第1キャビティの側面開口部が浮駒内
装穴の内壁面で閉塞される一次成形位置と、一次成形品
の外周部が第2キャビティの穴側開口部を閉塞する二次
成形位置との間を移動できるようにしたことを特徴とす
るものである。Furthermore, the apparatus for molding a different-colored molded product of the present invention sequentially injects and fills the first cavity and the second cavity with different-colored molten resin, thereby producing a different-colored molded product in which the primary molded product and the secondary molded product are integrated. A mold device that can be opened and closed for molding a secondary molded product, and includes a fixed number plate and a movable side mounting plate that are attached to the fixed plate and movable plate of an injection molding machine, and a spool bushing. A stripper plate that comes into contact with and separates from the fixed side mounting plate, a fixed side mold plate that is fixed to this stripper plate via a fixed base, and a fixed side template that is fixed and fixed to the movable side mounting plate via a spacer block and a receiving plate. and a movable side mold plate that forms a second cavity between the side mold plate and the movable side mold plate, and a floating piece in which the second cavity opens in a part of the fixed base, the fixed side mold plate, and the movable side mold plate. A first floating piece that has an interior hole and into which a spool bushing is inserted; and a second floating piece that closes and forms a first cavity with a side opening between the first floating piece and the first floating piece. A pair of floating pieces that can be opened and closed are assembled so as to be able to move in the mold opening/closing direction in close contact with the inner wall surface of the inner wall of the floating piece, and a floating piece actuating mechanism that incorporates this pair of floating pieces into a spacer block opens the first cavity. so that it can move between a primary molding position where the side opening of the floating piece is closed by the inner wall surface of the inner hole of the floating piece, and a secondary molding position where the outer periphery of the primary molded product closes the hole side opening of the second cavity. It is characterized by the following.
本発明の異色成形品の成形方法及びその装置にあっては
、前記浮駒対を一次成形位置に移動停止させた状態で、
製品内側部となる部分(例えばデザイン化された異色模
様等)を浮駒対の第1キャビティで一次成形し、前記浮
駒対を二次成形位置に移動停止させた状態で、製品外郭
部となる部分(例えば異色模様を中央部に配したケース
外郭部)を型板間の第2キャビティで二次成形して、製
品内側部である一次成形品と製品外郭部である二次成形
品とが完全に一体化(一次、二次界面が溶着)シた異色
の成形品を得る。In the method and apparatus for molding a uniquely colored molded product of the present invention, with the pair of floating pieces moved and stopped at the primary molding position,
The part that will become the inner part of the product (for example, a designed unique color pattern, etc.) is first molded in the first cavity of the pair of floating pieces, and with the pair of floating pieces moved and stopped at the secondary molding position, the outer part of the product and (for example, the outer part of the case with a unique pattern in the center) is second-molded in the second cavity between the templates to create a primary molded product that is the inner part of the product and a secondary molded product that is the outer part of the product. Obtain a unique molded product that is completely integrated (primary and secondary interfaces are welded).
以下、本発明の一実施例を図面に従い説明する。第1図
及び第2図は本発明の成形方法と、それを実施するため
の成形装置を示すもので、この成形装置は例えば第3図
に示すような異色成形品1、すなわちデザイン化された
異色模様2を中央に配し一側部に異色模様2と同色の蝶
番中ヒンジ部3を設けたケース蓋4と、このケース蓋4
の蝶番中ヒンジ部3に枢支される蝶番両側ヒンジ部56
を有したケース体7とからなる異色成形品1を成形する
金型装置10を具備している。An embodiment of the present invention will be described below with reference to the drawings. FIGS. 1 and 2 show the molding method of the present invention and a molding device for carrying out the method. This molding device is used to produce, for example, a unique molded product 1 as shown in FIG. A case lid 4 with a unique color pattern 2 arranged in the center and a hinge part 3 in the same color as the unique color pattern 2 on one side, and this case lid 4.
The hinge parts 56 on both sides of the hinge are pivotally supported on the middle hinge part 3 of the hinge.
The mold apparatus 10 is equipped with a mold device 10 for molding a uniquely colored molded product 1 consisting of a case body 7 having
この金型装置10は異色模様2と蝶番中ヒンジ部3を例
えば赤色の一次成形品8として一次成形し、異色模様2
と蝶番中ヒンジ部3を除くケース蓋4の外郭部分を例え
ば緑色の二次成形品9aとし、蝶番両側ヒンジ部5.6
を有するケース体7を例えば橙色の二次成形品9bとし
て二次成形するものであって、その構造はメインの射出
成形機の固定盤及び可動盤(図示せず)に取付けられる
固定側取付板11及び可動側取付板12と、固定側取付
板11のランナー湯道11aと連通ずるスプールブツシ
ュ13を有し固定側取付板11に接離するように配設し
たストリッパ板I4と、このストリッパ板■4に固定ベ
ースI5を介して止着される固定側型板16と、可動側
取付板12にスペーサブロック18及び受板19を介し
て止着され固定側型板16との間に第2キャビティ21
.22(二次成形品9a、 9bを成形する空隙)を型
閉じ形成する可動側型板17とから構成されている。そ
して、前記固定ベース15と固定側型板16及び可動側
型板17の一部に第2キャビティ21.22が開口する
浮駒内装穴Hを設け、この浮駒内装穴Hにスプールブツ
シュ】3の嵌入孔23を有した第1浮駒24と、この第
1浮駒24との間に側面開口の第1キャビティ20を駒
閉じ形成する第2浮駒25とからなる開閉可能な浮駒対
26を浮駒内装穴Hの内壁面と密接した状態で金型開閉
方向に移動できるように組込み、この浮駒対2Bを浮駒
作動機構30によって第1キャビティ20の側面開口部
が浮駒内装穴Hの内壁面で第1図(A)(B)の如く閉
塞される一次成形位置と、一次成形品8の外周部が第2
キャビティ21.・22の穴側開口部を第1図(C)の
如く閉塞する二次成形位置とに切換移動できるように構
成している。なお、前記第1浮駒24は移動ストローク
規制用の拡径孔27に係合する鍔部24aを有し、スト
リッパ板14との間に介装されたスプリング28によっ
て第2浮駒25の方向にバネ付勢されているが、この第
1浮駒24と第2浮駒25との対向部には側面開口の第
1キャビティ20を確保するための突起部(図示せず)
が一次、二次界面となる部分を避けた位置に設けられて
いる。This mold device 10 primarily molds the unique color pattern 2 and the hinge part 3 as a red primary molded product 8, and
For example, the outer part of the case lid 4 excluding the middle hinge part 3 is made into a green secondary molded product 9a, and the hinge parts 5 and 6 on both sides of the hinge are made into a green secondary molded product 9a.
For example, the case body 7 having the following shape is second-molded as an orange-colored secondary molded product 9b, and its structure includes a fixed-side mounting plate that is attached to a fixed platen and a movable platen (not shown) of the main injection molding machine. 11, a movable mounting plate 12, a stripper plate I4 having a spool bush 13 communicating with the runner runner 11a of the fixed mounting plate 11, and arranged so as to approach and separate from the fixed mounting plate 11, and the stripper plate I4. Between the fixed side template 16 fixed to the plate 4 via the fixed base I5 and the fixed side template 16 fixed to the movable side mounting plate 12 via the spacer block 18 and the receiving plate 19, 2 cavities 21
.. 22 (the gap for molding the secondary molded products 9a, 9b) and a movable mold plate 17 that closes and forms the mold. Then, a floating piece interior hole H through which the second cavity 21, 22 opens is provided in a part of the fixed base 15, fixed side mold plate 16, and movable side template 17, and a spool bushing is provided in this floating piece interior hole H. An openable and closable floating piece consisting of a first floating piece 24 having three insertion holes 23, and a second floating piece 25 that closes and forms a first cavity 20 with a side opening between the first floating piece 24. The floating piece pair 26 is assembled so as to be movable in the mold opening/closing direction in close contact with the inner wall surface of the floating piece interior hole H, and the floating piece pair 2B is moved by the floating piece actuating mechanism 30 so that the side opening of the first cavity 20 becomes a floating piece. The primary molding position is closed by the inner wall surface of the interior hole H as shown in FIGS. 1(A) and (B), and the outer peripheral part of the primary molded product 8
Cavity 21. - It is configured so that it can be switched to the secondary forming position where the hole side opening of No. 22 is closed as shown in FIG. 1(C). The first floating piece 24 has a flange 24a that engages with an enlarged diameter hole 27 for regulating the movement stroke, and is controlled in the direction of the second floating piece 25 by a spring 28 interposed between it and the stripper plate 14. The first floating piece 24 and the second floating piece 25 have a protrusion (not shown) on the opposite side to secure the first cavity 20 having a side opening.
It is provided at a position that avoids the area that becomes the primary and secondary interface.
前記浮駒作動機構30はスペーサブロック18に装備さ
れるもので、第2浮駒25に固定され前記受板19の連
通孔J9aを移動自在に貫通してスペーサブロック1ε
内に延出する浮駒作動ロッド3Iと、この浮駒作動ロッ
ド31の端部係合子31aに摺動係合するカム溝32を
有し該カム溝のスライド変更によって前記浮駒対26を
一次成形位置と二次成形位置とに切換移動させるスライ
ド式の浮駒作動カム33と、このl″y、駒作動カム3
3に連結されるピストンロッド34aを有し浮駒作動カ
ム33をスペーサブロック18内において金型開閉方向
と直交する方向に進退移動させる油圧シリンダ34とか
ら構成される。The floating piece actuating mechanism 30 is installed on the spacer block 18, and is fixed to the second floating piece 25 and movably passes through the communication hole J9a of the receiving plate 19 to connect the spacer block 1ε.
It has a floating piece operating rod 3I extending inward, and a cam groove 32 that slides into engagement with the end engager 31a of this floating piece operating rod 31. By changing the slide of the cam groove, the floating piece pair 26 is moved to the primary position. A sliding floating piece operating cam 33 that switches between the forming position and the secondary forming position, and this l″y, piece operating cam 3.
The hydraulic cylinder 34 has a piston rod 34a connected to the spacer block 18 and moves the floating piece actuating cam 33 forward and backward within the spacer block 18 in a direction perpendicular to the mold opening/closing direction.
第2図に示す符号21a 、 22aは、第2キャビテ
ィ21.22に溶融樹脂を注入充填する湯道で、この湯
道21a 、 22aは固定側型板16と可動側型板1
7の型合せ部に形成され、その両側方に配置されるサブ
の射出成形機85.36から異色の溶F!!I!樹脂が
注入されるようになっている。なお、このサブの射出成
形機35.36は、固定側又は可動側金型の側面に第2
図の如く取付けられる。Reference numerals 21a and 22a shown in FIG. 2 are runners for injecting and filling the second cavity 21 and 22 with molten resin.
A unique melt F! is formed in the mold matching part of No. 7, and from the sub-injection molding machines 85 and 36 placed on both sides thereof. ! I! Resin is injected. In addition, this sub-injection molding machine 35, 36 has a second mold on the side of the fixed or movable mold.
Installed as shown in the diagram.
次に、前記のように構成された成形装置を用いて第3図
の異色成形品1を成形する方法について説明する。先ず
、金型装置lOの型締状態において浮駒作動機構30を
前進方向に作動させて、浮駒作動カム33の前進により
浮駒対26を第1浮駒24と第2浮駒25が一体化した
状態で第1図(A)(B)に示す一次成形位置に移動さ
せる。そして、この浮駒対26の一次成形位置への移動
停止状態で、メインの射出成形機(図示せず)から湯道
11a及びスプールブツシュ13を介して第1キャビテ
ィ20に溶融樹脂8aを第1図(B)の如く射出充填し
くピンゲート方式の一次成形を行ない)、これにより模
様2と蝶番中ヒンジ部3が一体となった赤色等の一次成
形品8を成形する。Next, a method for molding the uniquely colored molded product 1 shown in FIG. 3 using the molding apparatus configured as described above will be described. First, the floating piece actuating mechanism 30 is operated in the forward direction in the mold clamping state of the mold apparatus 1O, and the floating piece pair 26 is integrated with the first floating piece 24 and the second floating piece 25 by advancing the floating piece operating cam 33. In this state, it is moved to the primary forming position shown in FIGS. 1(A) and 1(B). Then, while the floating piece pair 26 is stopped moving to the primary molding position, the molten resin 8a is injected from the main injection molding machine (not shown) into the first cavity 20 via the runner 11a and the spool bush 13. As shown in FIG. 1 (B), primary molding is performed using a pin gate method such as injection filling), thereby molding a primary molded product 8, such as a red color, in which the pattern 2 and the hinge part 3 are integrated.
次いで、一次成形品8の硬化後に浮駒作動機構30を後
退方向に作動させて、浮駒作動カム33の後退により前
記浮駒対26を一次成形品8の外周部が第2キャビティ
21.22の穴側開口部を閉塞する二次成形位置に第1
図(C)の如く移動させる。Next, after the primary molded product 8 has hardened, the floating piece actuating mechanism 30 is operated in the backward direction, and the floating piece actuating cam 33 moves back to move the floating piece pair 26 so that the outer peripheral part of the primary molded product 8 is in the second cavity 21,22. The first one is placed at the secondary forming position to close the opening on the hole side.
Move it as shown in figure (C).
そして、この浮駒対26の二次成形位置への移動停止状
態で、サブの射出成形機35.38から湯道35a。Then, while the floating piece pair 26 is stopped moving to the secondary molding position, the runner 35a is removed from the sub-injection molding machine 35, 38.
36aを介して第2キャビティ21.22に異色の溶融
樹脂を射出充填する二次成形を行なって、一次成形品8
と二次成形品9a(ケース蓋4の外郭部)が一次、二次
界面で溶着すべく一体化し、且つ一次成形品8の蝶番中
ヒンジ部3に二次成形品9b(ケース体7)の蝶番両側
ヒンジ部5.6が蝶着された第2図に示す異色成形品1
を得る。Secondary molding is performed by injecting and filling a different color molten resin into the second cavity 21.22 through 36a, and the primary molded product 8 is formed.
and the secondary molded product 9a (outer part of the case lid 4) are integrated to be welded at the primary and secondary interface, and the secondary molded product 9b (case body 7) is attached to the hinge part 3 of the primary molded product 8. Unique molded product 1 shown in Fig. 2 with hinge parts 5 and 6 on both sides hinged
get.
このようにして成形された異色成形品1は、金型装置1
0を第1図(D)の如く型開きした状態で、図示省略の
突出機構(スペーサブロック18内に装置される)によ
って第1図(D)の想像線で示すように突き出すことに
より離型取出される。第1図(D)に示す符号Sはスプ
ールランナである。The unique molded product 1 molded in this way is manufactured by the mold device 1
0 is opened from the mold as shown in FIG. 1(D), and released from the mold by ejecting it as shown by the imaginary line in FIG. taken out. The symbol S shown in FIG. 1(D) is a spool runner.
なお、前記実施例は異色模様2と蝶番中ヒンジ部3を一
次成形品8とし、ケース蓋4とケース体7を二次成形品
9a、 9bとして異色成形する方法及び装置について
説明したが、製品中央部に配される異色模様等の製品内
側部を一次成形品8とし、ケース蓋4等の製品外郭部(
製品外側部)を二次成形品9aとして異色成形する方法
及び装置にも適用することができる。In addition, in the above embodiment, the method and apparatus for molding the unique pattern 2 and the middle hinge part 3 as the primary molded product 8, and the case lid 4 and the case body 7 as the secondary molded products 9a, 9b, were explained. The inner part of the product such as the unique color pattern arranged in the center is the primary molded product 8, and the outer part of the product such as the case lid 4 (
The present invention can also be applied to a method and apparatus for molding the outer part of the product into a secondary molded product 9a with a different color.
本発明の異色成形品の成形方法及びその装置は、前記の
ようなものであるから、比較的簡単な装置構造でありな
がら、製品外郭部の中央にデザイン化された異色模様等
の製品内側部を部分混色しないように出現させた異色の
成形品を同−金型内で容易に成形することができる。Since the method and apparatus for molding a uniquely colored molded product of the present invention are as described above, although the device structure is relatively simple, the inner part of the product has a uniquely colored pattern designed in the center of the outer part of the product. Molded products with different colors can be easily molded in the same mold without causing partial color mixing.
第1図及び第2図は本発明の一実施例を示すもので、第
1図(A)は樹脂注入前の状態を示した金型断面図、第
1図(B)は一次成形を行なう状態の金型断面図、第1
図(C)は二次成形を行なう状態の金型断面図、第1図
(D)は成形品を取出す型開き状態の金型断面図、第2
図は第1図(C)の■−■線に沿う横断平面図、第3図
は本発明の方法及び装置によって成形された異色成形品
の斜視図である。
1・・・異色成形品、2・・・異色模様、3・・・蝶番
中ヒンジ部、4・・・ケー7.M、5.6−・・蝶番両
側ヒンジ部、7・・・ケース体、8・・・一次成形品、
9a・・・ケース蓋外郭部として成形した二次成形品、
9b・・・ケース体として成形した二次成形品、10・
・・金型装置、11・・・固定側取付板、12・・・可
動側取付板、13・・・スプールブツシュ、I4・・・
ストリッパ板、+5・・・固定ベース、16・・・固定
側型板、+7・・・可動側型板、18・・・スペーサブ
ロック、19・・・受板、20・・・第1キャビティ、
21、22・・・第2キャビティ、24・・・第1浮駒
、25・・・第2浮駒、26・・・浮駒対、H・・・浮
駒内装穴、28・・・スプリング、30・・・浮駒作動
機構、31・・・浮駒作動ロッド、31a・・・ロッド
端部の係合子、32・・・カム溝、33・・・浮駒作動
カム、34・・・油圧シリンダ、35.36・・・サブ
の射出成形機。
出願人代理人 弁理士 鈴江武彦
第1図(B)
第1図(A)
第1図
(C)Figures 1 and 2 show an embodiment of the present invention, where Figure 1 (A) is a cross-sectional view of the mold showing the state before resin injection, and Figure 1 (B) is a mold that undergoes primary molding. Mold sectional view in condition, 1st
Figure (C) is a cross-sectional view of the mold in a state where secondary forming is performed, Figure 1 (D) is a cross-sectional view of the mold in an open state to take out the molded product, and Figure 2
The figure is a cross-sectional plan view taken along the line ■--■ in FIG. 1(C), and FIG. 3 is a perspective view of a uniquely colored molded product molded by the method and apparatus of the present invention. 1... Different color molded product, 2... Different color pattern, 3... Middle hinge part, 4... Case 7. M, 5.6--Hinge on both sides, 7--Case body, 8--Primary molded product,
9a... Secondary molded product formed as the outer shell of the case lid,
9b... Secondary molded product molded as a case body, 10.
... Mold device, 11... Fixed side mounting plate, 12... Movable side mounting plate, 13... Spool bush, I4...
Stripper plate, +5... Fixed base, 16... Fixed side template, +7... Movable side template, 18... Spacer block, 19... Receiving plate, 20... First cavity,
21, 22...Second cavity, 24...First floating piece, 25...Second floating piece, 26...Floating piece pair, H...Floating piece interior hole, 28...Spring , 30... Floating piece operating mechanism, 31... Floating piece operating rod, 31a... Engagement element at rod end, 32... Cam groove, 33... Floating piece operating cam, 34... Hydraulic cylinder, 35.36...Sub injection molding machine. Applicant's agent Patent attorney Takehiko Suzue Figure 1 (B) Figure 1 (A) Figure 1 (C)
Claims (2)
樹脂を順次に射出充填して、一次成形品と二次成形品が
一体化した異色の成形品を得る成形方法において、第2
キャビティを型閉じ形成する固定側型板及び可動側型板
を含む開閉可能な金型装置の一部に、第2キャビティが
開口する浮駒内装穴を設け、この浮駒内装穴に側面開口
の第1キャビティを形成する開閉可能な浮駒対を一次成
形位置と二次成形位置との間の移動できるように組込み
、この浮駒対を一次成形位置に移動停止させた状態で第
1キャビティに溶融樹脂を射出充填するピンゲート方式
の一次成形を行ない、この一次成形品の硬化後に前記浮
駒対を一次成形品の外周部が第2キャビティの穴側開口
部を閉塞する二次成形位置に移動させ、この浮駒対の二
次成形位置への移動停止状態で第2キャビティに異色の
溶融樹脂を射出充填する二次成形を行なって、一次成形
品と二次成形品が一体化した異色の成形品を得ることを
特徴とする異色成形品の成形方法。(1) In a molding method in which a first cavity and a second cavity are sequentially injected and filled with different colored molten resins to obtain a different colored molded product in which a primary molded product and a secondary molded product are integrated, the second
A part of the openable and closable mold device including the fixed side mold plate and the movable side mold plate that closes the cavity is provided with a floating piece inner hole through which the second cavity opens, and a side opening is provided in this floating piece inner hole. A pair of floating pieces that can be opened and closed forming the first cavity is installed so as to be movable between the primary molding position and the secondary molding position, and with the pair of floating pieces stopped at the primary molding position, the pair of floating pieces is moved into the first cavity. Primary molding is performed using a pin gate method in which molten resin is injected and filled, and after the primary molded product has hardened, the floating piece pair is moved to a secondary molding position where the outer periphery of the primary molded product closes the opening on the hole side of the second cavity. Then, while the floating piece pair is stopped moving to the secondary molding position, secondary molding is performed by injecting and filling a unique molten resin into the second cavity, resulting in a unique product in which the primary molded product and the secondary molded product are integrated. A method for forming a unique molded product, which is characterized by obtaining a molded product.
樹脂を順次に射出充填して、一次成形品と二次成形品が
一体化した異色の成形品を得る成形装置において、二次
成形品を成形する開閉可能な金型装置が、射出成形機の
固定盤及び可動盤に取付けられる固定側取付板及び可動
側取付板と、スプールブッシュを有し固定側取付板に接
離するストリッパ板と、このストリッパ板に固定ベース
を介して止着される固定側型板と、可動側取付板にスペ
ーサブロック及び受板を介して止着され固定側型板との
間に第2キャビティを型閉じ形成する可動側型板とから
構成され、前記固定ベースと固定側型板及び可動側型板
の一部に第2キャビティが開口する浮駒内装穴を設け、
この浮駒内装穴にスプールブッシュが嵌入される第1浮
駒と、この第1浮駒との間に側面開口の第1キャビティ
を駒閉じ形成する第2浮駒とからなる開閉可能な浮駒対
を浮駒内装穴の内壁面と密接した状態で金型開閉方向に
移動できるように組込み、この浮駒対を第1キャビティ
の側面開口部が浮駒内装穴の内壁面で閉塞される一次成
形位置と、一次成形品の外周部が第2キャビティの穴側
開口部を閉塞する二次成形位置との間を移動できるよう
に可動させる浮駒作動機構をスペーサブロックに組込ん
だことを特徴とする異色成形品の成形装置。(2) In a molding device that sequentially injects and fills a first cavity and a second cavity with different colored molten resins to obtain a different colored molded product in which the primary molded product and the secondary molded product are integrated, the secondary molded product is A mold device that can be opened and closed for molding has a fixed side mounting plate and a movable side mounting plate that are attached to a fixed platen and a movable platen of an injection molding machine, and a stripper plate that has a spool bush and moves toward and away from the fixed side mounting plate; A second cavity is formed between the fixed side template that is fixed to this stripper plate via the fixed base and the fixed side template that is fixed to the movable side mounting plate via the spacer block and the receiving plate. a movable side mold plate, and a floating piece interior hole through which a second cavity opens is provided in the fixed base, a part of the fixed side mold plate, and a part of the movable side template;
An openable and closable floating piece consisting of a first floating piece into which a spool bush is fitted into the floating piece interior hole, and a second floating piece that closes and forms a first cavity with a side opening between the first floating piece and the first floating piece. The floating piece pair is assembled so as to be movable in the mold opening/closing direction in close contact with the inner wall surface of the floating piece inner hole, and this floating piece pair is installed in the first cavity where the side opening of the first cavity is closed by the inner wall surface of the floating piece inner hole. A floating piece actuation mechanism is incorporated into the spacer block so that it can be moved between the molding position and the secondary molding position where the outer periphery of the primary molded product closes the hole-side opening of the second cavity. Molding equipment for unique molded products.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19294090A JPH0478513A (en) | 1990-07-23 | 1990-07-23 | Method and device for molding heterochromatic molded form |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19294090A JPH0478513A (en) | 1990-07-23 | 1990-07-23 | Method and device for molding heterochromatic molded form |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0478513A true JPH0478513A (en) | 1992-03-12 |
Family
ID=16299539
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19294090A Pending JPH0478513A (en) | 1990-07-23 | 1990-07-23 | Method and device for molding heterochromatic molded form |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0478513A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5458843A (en) * | 1990-06-27 | 1995-10-17 | Tradesco Mold Limited | Pin-less drool prevention system |
US5464579A (en) * | 1990-06-27 | 1995-11-07 | Brown; David | Multi-level stacked mold system |
FR2752541A1 (en) * | 1996-08-23 | 1998-02-27 | Qualipac Sa | Injection moulded container body with hinged lid |
JP2001293747A (en) * | 2000-04-14 | 2001-10-23 | Togo Seisakusho Corp | Apparatus for molding profile molded article |
EP1568460A1 (en) * | 2004-02-24 | 2005-08-31 | Mold-Masters Limited | Multiple-material injection molding |
WO2013042039A1 (en) * | 2011-09-22 | 2013-03-28 | Sabic Innovative Plastics Ip B.V. | Thick plastic part and method of making and tool |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6112311A (en) * | 1984-06-29 | 1986-01-20 | Kamaya Kagaku Kogyo Kk | Method for molding multicolor resin container |
JPS644613B2 (en) * | 1980-08-15 | 1989-01-26 | Andorosu Anaraizaazu Inc |
-
1990
- 1990-07-23 JP JP19294090A patent/JPH0478513A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS644613B2 (en) * | 1980-08-15 | 1989-01-26 | Andorosu Anaraizaazu Inc | |
JPS6112311A (en) * | 1984-06-29 | 1986-01-20 | Kamaya Kagaku Kogyo Kk | Method for molding multicolor resin container |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5458843A (en) * | 1990-06-27 | 1995-10-17 | Tradesco Mold Limited | Pin-less drool prevention system |
US5464579A (en) * | 1990-06-27 | 1995-11-07 | Brown; David | Multi-level stacked mold system |
FR2752541A1 (en) * | 1996-08-23 | 1998-02-27 | Qualipac Sa | Injection moulded container body with hinged lid |
JP2001293747A (en) * | 2000-04-14 | 2001-10-23 | Togo Seisakusho Corp | Apparatus for molding profile molded article |
EP1568460A1 (en) * | 2004-02-24 | 2005-08-31 | Mold-Masters Limited | Multiple-material injection molding |
WO2013042039A1 (en) * | 2011-09-22 | 2013-03-28 | Sabic Innovative Plastics Ip B.V. | Thick plastic part and method of making and tool |
KR20140065399A (en) * | 2011-09-22 | 2014-05-29 | 사빅 이노베이티브 플라스틱스 아이피 비.브이. | Thick plastic part and method of making and tool |
US9180615B2 (en) | 2011-09-22 | 2015-11-10 | Sabic Global Technologies B.V. | Method of making a multiple-layered plastic part |
US9815260B2 (en) | 2011-09-22 | 2017-11-14 | Sabic Global Technologies B.V. | Thick plastic part and method of making and tool |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS61108519A (en) | Molding method of multi-color synthetic resin molded part, molding equipment and molded part thereof | |
CN108481677A (en) | A kind of encapsulated template floating side ejection device mechanism and its encapsulation die | |
JPH0478513A (en) | Method and device for molding heterochromatic molded form | |
JPS6112311A (en) | Method for molding multicolor resin container | |
JP3842718B2 (en) | Multilayer hollow body injection molding method and injection molding die | |
JP2859494B2 (en) | Multi-material injection molding machine | |
JPH03292116A (en) | Molding method of resin molded product and mold | |
JP2770535B2 (en) | Molding method and molding die for multicolor molded products | |
JPS6237118A (en) | Mold for multicolor molding | |
JP2998143B2 (en) | Mold equipment | |
JP2734164B2 (en) | Multiple mold equipment | |
JP2004291324A (en) | Mold for multicolor molding and multicolor molding method | |
JP3465782B2 (en) | Multi-material molding die device and multi-material molding method using this die device | |
JPH05104581A (en) | Valve gate type mold assembly | |
JP3749836B2 (en) | Injection molding method of composite molded product and injection mold | |
CN214026934U (en) | Key handle injection mold | |
JP2734165B2 (en) | Multiple mold equipment | |
JPH03184818A (en) | Mold for injection molding | |
JP4009440B2 (en) | Composite injection mold | |
JP2754852B2 (en) | Multiple mold equipment | |
JPH0229312A (en) | Injection molding die of split mold structure | |
JP3867571B2 (en) | Resin mold | |
JPH01168414A (en) | Method for multiple color molding | |
JPH0541860Y2 (en) | ||
JPH09131733A (en) | Mold for molding prism |