JPS61189914A - Insert molding of metallic tools and molds to be used - Google Patents
Insert molding of metallic tools and molds to be usedInfo
- Publication number
- JPS61189914A JPS61189914A JP3085785A JP3085785A JPS61189914A JP S61189914 A JPS61189914 A JP S61189914A JP 3085785 A JP3085785 A JP 3085785A JP 3085785 A JP3085785 A JP 3085785A JP S61189914 A JPS61189914 A JP S61189914A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- cavity
- insert
- fitting
- injected
- 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
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
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14065—Positioning or centering articles in the mould
- B29C45/14073—Positioning or centering articles in the mould using means being retractable during injection
-
- 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
- B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はインサート金具を有する樹脂製品の成型におい
てインサート金具を定位置に正確に埋設せしめる様にし
た金具のインサート成型方法およびこれに使用する成型
金型に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for insert molding a metal fitting in which the metal insert is accurately embedded in a fixed position in molding a resin product having a metal insert, and a mold used for the same.
従来かかるインサート金具を有する樹脂製品の成型は、
可動側の金型のキャビティー内に突没せしめた保持部材
に対しインサート金具を保持せしめた状態で型締し、か
かる状態においてキャビティー内に樹脂を注入せしめる
ことによりインサート金具を埋設せしめる様に成してい
るが、かかる成型方法においてはキャビティー内への樹
脂の注入に際し、その圧力によりインサート金具の表面
側に樹脂が回り込んでパリを生ぜしめ、よって成型後に
パリ取り等の後処理を必要とする煩わしさを有し、又樹
脂の注入圧によりインサート金具が位置ずれして不良品
を生じる等の欠点を有していた。Conventionally, molding of resin products with such insert metal fittings is
The mold is clamped while holding the insert metal fitting against the holding member that is sunk into the cavity of the movable mold, and in this state, the insert metal fitting is buried by injecting resin into the cavity. However, in this molding method, when the resin is injected into the cavity, the pressure causes the resin to wrap around the surface of the insert metal fitting and cause burr, so post-processing such as deburr removal is required after molding. In addition, the injection pressure of the resin causes the insert fittings to shift in position, resulting in defective products.
本発明はかかる欠点に鑑み、可動金型のキャビティー内
に突出せしめた支持部材にインサート金具を嵌合保持せ
しめ、可動金型を作動せしめて型締操作を行うと共に、
保持せしめたインサート金具に対向して固定金型に出入
自在に装着せしめた押圧ピンを突出せしめて該押圧ピン
と支持部材との間でインサート金具を挟持せしめ、しか
る後キャビティー内に樹脂を一次注入せしめ、続いて押
圧ピンを後退作動せしめた後樹脂を二次注入せしめる様
にした金具のインサート成型方法およびこれに使用する
成型金型を提供して上記欠点を解消せんとしたものにし
て、以下本発明の一実施例を図面に基づいて説明すると
、
1は合成樹脂の射出成型機に装着される成型金型であり
、該成型金型1は成型機の固定側に装着される固定金型
2と可動に装着される可動金型3より構成せしめている
。In view of such drawbacks, the present invention has an insert fitting fitted and held in a support member protruding into the cavity of a movable mold, and the movable mold is operated to perform a mold clamping operation.
A press pin, which is removably attached to the fixed mold, is made to protrude in opposition to the held insert metal fitting, and the insert metal fitting is held between the press pin and the support member, and then the resin is primarily injected into the cavity. In an attempt to eliminate the above drawbacks by providing a metal fitting insert molding method in which resin is injected secondarily after the press pin is moved backward, and a mold used for the same, the following is an attempt to solve the above drawbacks. An embodiment of the present invention will be described based on the drawings. Reference numeral 1 denotes a molding die installed in a synthetic resin injection molding machine, and the molding die 1 is a fixed mold installed on the fixed side of the molding machine. 2 and a movable mold 3 which is movably mounted.
可動金型3は可動側取付板4に対しスペーサーブロック
5を介して型板6を装着せしめ、該型板6の合わせ面7
には成型すべき成型体8の形状に対応するキャビティー
9を形成せしめたコア10を装着せしめ、キャビティー
9の底面部に対しては成型体8の離型用の押出ピン11
.11a・・・を出入自在に臨ませ、該押出ピン11、
lla・・・を押出プレート12に支持せしめる様に成
している。The movable mold 3 has a mold plate 6 attached to the movable mounting plate 4 via a spacer block 5, and a mating surface 7 of the mold plate 6.
A core 10 in which a cavity 9 corresponding to the shape of the molded body 8 to be molded is formed is attached to the core 10, and an extrusion pin 11 for releasing the molded body 8 is attached to the bottom of the cavity 9.
.. 11a... can be freely moved in and out, and the extrusion pin 11,
lla... are supported by the extrusion plate 12.
尚、成型体8は第2図に図示する様に本実施例において
は基部の両端部より突没せしめた突起部13.13aの
上面に螺子付きのインサート金具14.14aを埋設一
体化せしめて成る部品を想定し、かかる形状の成型体8
に対しキャビティー9はインサート金具14.14aの
装着面がコア10の底面側になる様にしてキャビティー
9の形状を設定せしめ、該キャビティー9内にはインサ
ート金具14.14aの埋設位置に対応する様にインサ
ート金具14.14aを嵌合保持する支持部材15.1
5aをコア10に固定せしめる様にしてキャビティー9
内へ突設位置せしめている。As shown in FIG. 2, in this embodiment, the molded body 8 has a threaded insert fitting 14.14a buried and integrated into the upper surface of a protrusion 13.13a that protrudes from both ends of the base. A molded body 8 having such a shape is assumed to be a part consisting of
On the other hand, the shape of the cavity 9 is set so that the mounting surface of the insert metal fitting 14.14a is on the bottom side of the core 10, and the insert metal fitting 14.14a is buried in the cavity 9. Support member 15.1 which fits and holds the insert fitting 14.14a in a corresponding manner.
5a is fixed to the core 10 to form the cavity 9.
It is located so that it protrudes inward.
図中16は成型体8に貫設すべき孔17に対応するコア
ピンである。In the figure, 16 is a core pin corresponding to the hole 17 to be inserted through the molded body 8.
尚、成型体8は図示のものに限定されず、各種形状のイ
ンサート金具付部品に対応可能なること勿論である。It should be noted that the molded body 8 is not limited to that shown in the drawings, and can of course be adapted to parts with insert fittings of various shapes.
固定金型2は固定側取付板18に対しスペーサーブロッ
ク19を介して型板20を可動側の型板6に対向位置す
る様にして装着せしめ、該型板20の合わせ面21には
可動側のコア10に対向すると共に、型締時に密接して
キャビティー9の一端面を構成するコア22を装着せし
め、又固定金型2には樹脂の注入部23に連通ずる様に
してスプルー溝24を穿設せしめ、該スプルー溝24は
ランナー25を介してキャビティー9に連通せしめる様
に成している。The fixed mold 2 is attached to the fixed side mounting plate 18 via the spacer block 19 so that the template 20 is located opposite to the movable side template 6, and the mating surface 21 of the template 20 has a movable side The fixed mold 2 has a sprue groove 24 so as to be in communication with the resin injection part 23. The sprue groove 24 is configured to communicate with the cavity 9 via a runner 25.
26はインサート金具14.14aに対する押圧機構部
であり、インサート金具14.14aが嵌合される支持
部材15.15aに対向する様にしてコア22を通して
固定金型2に押圧ピン27.27aをキャビティー9内
に対して出入自在に挿通せしめ、該押圧ピン27.27
aの基端部を固定金型2と固定側取付板18との間に配
置せしめた作動板28に支持せしめ、又作動板28の上
下両面に対向する様にして固定金型2の上面と固定側取
付板工8の下面には操作部材29を押圧ピン27.27
aの進退方向に直交する方向に摺動自在に挿通配置せし
め、又作動板28の上下面には溝部30.30aを形成
せしめると共に、操作部材29の内面には溝部30.3
0aに対応嵌合する突部31.31aを夫々形成せしめ
、該突部31.31aは操作部材29の左右両端の移動
状態において一方の突部31が溝部30、30aに嵌合
する時他方の突部31aは溝部30aに嵌合せず、作動
板28の外面を押圧する様に溝部30.30aに対し所
定寸法位置をずらせて形成せしめ、溝部30.30aと
突部31.31aによる作動板28の進退ストロークは
押圧ピン27.27aが支持部材15.15aに嵌合さ
れたインサート金具14.14aを押圧固定した状態か
ら押圧ピン27.27aがコア22の下面に後退位置す
る間の寸法に対応して溝部30.30a、突部31.3
1aの深さを設定せしめている。Reference numeral 26 denotes a pressing mechanism for the metal insert 14.14a, and a pressing pin 27.27a is inserted into the fixed mold 2 through the core 22 so as to face the support member 15.15a into which the metal insert 14.14a is fitted. The pressing pin 27.27 is inserted into and out of the tee 9 at will.
The base end of a is supported by an actuating plate 28 disposed between the fixed mold 2 and the fixed side mounting plate 18, and the top surface of the fixed mold 2 and The operating member 29 is attached to the lower surface of the fixed side mounting platework 8 with a pressing pin 27.27.
The operating member 29 has grooves 30.30a formed on the upper and lower surfaces of the actuating plate 28, and grooves 30.30a formed on the inner surface of the operating member 29.
0a, and when one of the protrusions 31 fits into the grooves 30 and 30a when the operating member 29 is moved at both left and right ends, the protrusions 31.31a engage with the grooves 30 and 30a. The protrusion 31a does not fit into the groove 30a, but is formed by being shifted by a predetermined dimension from the groove 30.30a so as to press the outer surface of the actuating plate 28. The forward and backward stroke corresponds to the dimension from when the press pin 27.27a presses and fixes the insert fitting 14.14a fitted to the support member 15.15a to when the press pin 27.27a retreats to the lower surface of the core 22. groove 30.30a, protrusion 31.3
The depth of 1a is set.
尚、溝部30.30aと突部31.31aとの移行部分
にはテーパー面32.32a 、 33.33aを夫々
形成せしめている。Incidentally, tapered surfaces 32.32a and 33.33a are formed at the transition portions between the groove portion 30.30a and the protrusion 31.31a, respectively.
34は作動板28に対する駆動装置であり、固定金型2
の側面にブラケット35を介して操作部材29の摺動方
向にシリンダー36を装着せしめ、該シリンダー36の
ロッド37をナックル38を介して操作部材29の端部
に接続せしめ、シリンダー36の進退作動により操作部
材29を摺動連動せしめる様に成している。34 is a drive device for the actuating plate 28, and the fixed mold 2
A cylinder 36 is attached to the side surface of the operating member 29 through a bracket 35 in the sliding direction of the operating member 29, and a rod 37 of the cylinder 36 is connected to an end of the operating member 29 via a knuckle 38. The operating member 29 is configured to be slidably interlocked.
尚、駆動装置34における駆動源はシリンダーに限らず
、モーターその他の駆動機器を利用することも可能であ
る。Note that the drive source in the drive device 34 is not limited to a cylinder, but a motor or other drive device may also be used.
次に本発明にかかる金具のインサート成型方法について
説明すると、先ず第1図に図示する様に可動金型3を移
動せしめて固定金型2に対し型締操作した後押圧機構部
26のシリンダー36が後退作動し、これに伴って操作
部材29が右方向へ移動すると第3図に図示する様に操
作部材29において作動板28の溝部30に嵌合してい
た突部31が溝部30より脱して作動板28の上面を押
圧すると共に、他方の突部31aは溝部30a内に嵌入
するため作動板28は下方へ押され、これに伴い押圧ピ
ン27.27aがキャビティー9内に進入すると共に、
支持部材15.15aに嵌合支持されたインサート金具
14.14aの上面を押圧して支持部材15.15aと
押圧ピン27.27aとの間にインサート金具14.1
4aが堅固に保持された状態となる。Next, the insert molding method for metal fittings according to the present invention will be explained. First, as shown in FIG. moves backward, and the operating member 29 accordingly moves to the right. As shown in FIG. and presses the upper surface of the actuating plate 28, and the other protrusion 31a fits into the groove 30a, so the actuating plate 28 is pushed downward, and the pressing pin 27.27a enters the cavity 9 and ,
The insert fitting 14.1 is inserted between the supporting member 15.15a and the pressing pin 27.27a by pressing the upper surface of the insert fitting 14.14a that is fitted and supported by the supporting member 15.15a.
4a is firmly held.
かかる状態より注入部23から樹脂を注入せしめると、
第4図に図示する様にキャビティー9内に樹脂が一次注
入され、続いて押圧機構部26のシリンダー36を前進
作動せしめると、第5図に図示する様に今度は操作部材
29の突部31aが溝部30aより脱して作動板28の
下面を押圧し、他方の突部31は溝部30内に嵌入する
ため作動板28は上方へ移動し、これに伴い押圧ピン2
7.27aはキャビティー9内より引き抜かれた状態と
なり、続いて樹脂を二次注入せしめることにより第6図
に図示する様に押圧ピン27.27aの介在のため空隙
部となっていた部分にも樹脂が入り込んでキャビティー
9内全域に樹脂が注入されるのである。When resin is injected from the injection part 23 in this state,
As shown in FIG. 4, when the resin is first injected into the cavity 9 and the cylinder 36 of the pressing mechanism section 26 is then moved forward, the protrusion of the operating member 29 is injected as shown in FIG. 31a comes out of the groove 30a and presses the lower surface of the actuating plate 28, and the other protrusion 31 fits into the groove 30, so the actuating plate 28 moves upward, and the pressing pin 2
7.27a is pulled out from the inside of the cavity 9, and then the resin is injected for a second time to fill the space that had become a void due to the interposition of the pressing pin 27.27a, as shown in FIG. The resin also enters and is injected into the entire cavity 9.
要するに本発明は、可動金型3のキャビティー9内にイ
ンサート金具14.14aを嵌合保持する支持部材15
.15aを突設せしめたので、成型体8に埋設すべきイ
ンサート金具14.14aを正確な位置に配置せしめる
ことが出来、又固定金型2には前記支持部材15.15
aに対向して押圧ピン27.27aを出入自在に挿通せ
しめ、咳押圧ピン27.27aの基端部を押圧ピン27
.27aの進退方向に作動制御される作動板28に支持
せしめたので、キャビティー9内に樹脂が注入される間
挿圧ピン27.27aの押圧作用によりインサート金具
14.14aを支持部材15.15aと押圧ピン27.
27aとの間に挟持状態で確実に保持せしめることが出
来るため、樹脂注入時の圧力によりインサート金具14
.14aが位置ずれしたりインサート金具14.14a
の表面側に樹脂が回り込んで不良品を生ずる等のトラブ
ルを完全に防止することが出来、又押圧ピン27.27
aの介在空隙は樹脂を二次注入することにより完全に埋
設されて高品質の成型体8を成型することが出来る等そ
の実用的効果甚だ大なるものである。In short, the present invention provides a support member 15 that fits and holds the insert fitting 14.14a in the cavity 9 of the movable mold 3.
.. Since the supporting member 15.15a is provided in a protruding manner, the insert fitting 14.14a to be embedded in the molded body 8 can be placed in an accurate position, and the supporting member 15.15 is provided in the fixed mold 2.
A pressing pin 27.27a is inserted freely in and out facing the cough pressing pin 27.27a, and the base end of the cough pressing pin 27.27a is inserted into the pressing pin 27
.. Since the insert fitting 14.14a is supported by the actuating plate 28 whose operation is controlled in the forward and backward directions of the insert fitting 14.14a, the support member 15.15a is pressed by the interposed pressure pin 27.27a through which resin is injected into the cavity 9. and press pin 27.
27a, the insert metal fitting 14 can be securely held in a sandwiched state between the insert metal fitting 14 and
.. 14a is misaligned or the insert fitting 14.14a
It is possible to completely prevent troubles such as resin getting around to the surface side of the press pin 27, resulting in defective products.
The intervening void a is completely buried by secondary injection of resin, and the practical effects are great, such as making it possible to mold a high-quality molded body 8.
図は本発明の一実施例を示すものにして、第1図は本発
明に係る金具のインサート成型装置の断面図、第2図は
成型体の斜視図、第3図乃至第6図は成型工程を示す図
である。
2固定金型 3可動金型 9キヤビテイー14.14a
インサート金具 15.15a支持部材27.27a押
圧ピン 28作動板
以上The drawings show an embodiment of the present invention, in which Fig. 1 is a sectional view of an apparatus for molding inserts for metal fittings according to the present invention, Fig. 2 is a perspective view of a molded body, and Figs. 3 to 6 are views of molded parts. It is a figure showing a process. 2 Fixed mold 3 Movable mold 9 Cavity 14.14a
Insert metal fitting 15.15a Support member 27.27a Press pin 28 actuating plate or more
Claims (2)
材にインサート金具を嵌合保持せしめ、可動金型を作動
せしめて型締操作を行うと共に、保持せしめたインサー
ト金具に対向して固定金型に出入自在に装着せしめた押
圧ピンを突出せしめて該押圧ピンと支持部材との間でイ
ンサート金具を挟持せしめ、しかる後キャビティー内に
樹脂を一次注入せしめ、続いて押圧ピンを後退作動せし
めた後樹脂を二次注入せしめる様にしたことを特徴とす
る金具のインサート成型方法。(1) The insert fitting is fitted and held in the support member that protrudes into the cavity of the movable mold, the movable mold is operated and the mold clamping operation is performed, and the fixed metal fitting is placed opposite to the held insert fitting. A press pin attached to the mold so as to be freely removable was made to protrude, and the insert fitting was clamped between the press pin and the support member. After that, resin was first injected into the cavity, and then the press pin was moved backward. A metal fitting insert molding method characterized by secondary injection of resin.
合保持する支持部材を突設せしめ、固定金型には前記支
持部材に対向して押圧ピンを出入自在に挿入せしめ、該
押圧ピンの基端部を押圧ピンの進退方向に作動制御され
る作動板に支持せしめたことを特徴とする金具のインサ
ート成型に使用する成型金型。(2) A support member for fitting and holding the insert fitting is provided protrudingly in the cavity of the movable mold, and a press pin is inserted into the fixed mold so as to be freely removable and opposite to the support member. A molding die used for insert molding of metal fittings, the base end of which is supported by an actuating plate whose operation is controlled in the forward and backward directions of a press pin.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3085785A JPS61189914A (en) | 1985-02-18 | 1985-02-18 | Insert molding of metallic tools and molds to be used |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3085785A JPS61189914A (en) | 1985-02-18 | 1985-02-18 | Insert molding of metallic tools and molds to be used |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS61189914A true JPS61189914A (en) | 1986-08-23 |
Family
ID=12315384
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3085785A Pending JPS61189914A (en) | 1985-02-18 | 1985-02-18 | Insert molding of metallic tools and molds to be used |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61189914A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007205833A (en) * | 2006-02-01 | 2007-08-16 | Daiichi Seiko Kk | Water meter and method for manufacturing the same |
FR2977522A1 (en) * | 2011-07-05 | 2013-01-11 | Faurecia Bloc Avant | Method for manufacturing composite component i.e. car's front part, involves moving holding member of portion of mold against insert to ensure pressing of insert on positioning member, and injecting plastic material into mold over insert |
-
1985
- 1985-02-18 JP JP3085785A patent/JPS61189914A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007205833A (en) * | 2006-02-01 | 2007-08-16 | Daiichi Seiko Kk | Water meter and method for manufacturing the same |
FR2977522A1 (en) * | 2011-07-05 | 2013-01-11 | Faurecia Bloc Avant | Method for manufacturing composite component i.e. car's front part, involves moving holding member of portion of mold against insert to ensure pressing of insert on positioning member, and injecting plastic material into mold over insert |
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