JPS60143919A - Outsert molding process - Google Patents
Outsert molding processInfo
- Publication number
- JPS60143919A JPS60143919A JP25135583A JP25135583A JPS60143919A JP S60143919 A JPS60143919 A JP S60143919A JP 25135583 A JP25135583 A JP 25135583A JP 25135583 A JP25135583 A JP 25135583A JP S60143919 A JPS60143919 A JP S60143919A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- fixing
- base plate
- substrate
- molded product
- 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
- B29C45/14336—Coating a portion of the article, e.g. the edge of the article
- B29C45/14344—Moulding in or through a hole in the article, e.g. outsert moulding
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、アウトサート成形法に関するものであるＯ
従来例の構成とその問題点
近年、基板上に樹脂成形品をアウトサート成形する方法
は、従来のプレス部品を基板上に締結する方法にとって
変わってきた。これは、プレス部品を基板上に締結する
方法に比べて、組立、すなわち、締結工数が不要及び安
価等の理由によるところである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an outsert molding method.Constitution of conventional examples and their problemsIn recent years, methods for outsert molding resin molded products on substrates have been The method of fastening pressed parts onto a board has changed. This is because compared to the method of fastening pressed parts onto a board, this method does not require assembling, that is, fastening, and is less expensive.
従来のアウトサート成形法では、第１図で示される比較
的小さな成形品１を切欠部２ａ、２ｂを設けた基板２上
に固定する場合には問題とならないが、第２図で示され
るように複数個の比較的大きな成形品３，４．５を複数
個の切欠部６ａ、６ｂを有する基板上６にアウトサート
成形法で固定する場合には、第３図に示されるように樹
脂成形品特有の性質である収縮の、ため、成形品３，４
．５の間で基板６の切欠部６ａ、６ｂすなわち固定部を
支点として基板６のそシが発生し、成形品３゜５間の寸
法精度を出しにくいという欠点があった。In the conventional outsert molding method, there is no problem when fixing a relatively small molded product 1 shown in FIG. 1 onto a substrate 2 provided with notches 2a and 2b, but as shown in FIG. When fixing a plurality of relatively large molded products 3, 4.5 onto a substrate 6 having a plurality of notches 6a, 6b by an outsert molding method, resin molding is performed as shown in FIG. Molded products 3 and 4 due to shrinkage, which is a characteristic unique to products.
．． The problem is that the substrate 6 warps between the notches 6a and 6b of the substrate 6, that is, the fixing portion, as a fulcrum between the molded parts 3 and 5, making it difficult to achieve dimensional accuracy between the molded products.
発明の目的
本発明は、上記従来の問題点を解消するもので、複数個
の樹脂成形品を複数個の切欠部を持つ基板上にアウトサ
ート成形する際に、樹脂収縮に起因すること基板のそり
が発生することのないアウトサート成形法を提供するこ
とを目的とする。OBJECT OF THE INVENTION The present invention solves the above-mentioned conventional problems.When outsert molding a plurality of resin molded products onto a substrate having a plurality of notches, the present invention solves the problems caused by resin shrinkage of the substrate. The purpose of the present invention is to provide an outsert molding method that does not cause warpage.
発明の構成
本発明のアウトサート成形法は、上記の目的を達成する
ため、複数個の樹脂成形品の基板への固定部である基板
上に設けられた成形品固定用の切欠部の一部に樹脂の注
入されない中空部を設けることを特長とするものである
。この方法によると、中空部の周囲に収縮により容易に
座屈し得る樹脂充填部を形成することができ、樹脂収縮
が生じても樹脂充填部の座屈によシ樹脂成形品間の基板
のそりを防ぐことができ、もって、樹脂成形品間の寸法
管理が容易に行なうことができる利点を有する。Composition of the Invention In order to achieve the above-mentioned object, the outsert molding method of the present invention includes a part of a notch for fixing molded products provided on a substrate, which is a part for fixing a plurality of resin molded products to the substrate. It is characterized by having a hollow part into which resin is not injected. According to this method, a resin-filled part that can easily buckle due to shrinkage can be formed around the hollow part, and even if the resin shrinks, the buckling of the resin-filled part will prevent the substrate between the resin molded parts from warping. This has the advantage that dimensional control between resin molded products can be easily performed.
実施例の説明
第４図および第６図は本発明の実施例を示すものである
。１１．１３は樹脂成形品、１２は樹脂成形品１１．１
３間を連結する補強リブ、１４は樹脂成形品１１，１３
と補強リブ１４を固定する基板、１６は樹脂成形品１１
全基板１４に固定する基板、１６は樹脂成形品１１を基
板１４に固定するため基板１４に設けた切欠部、１６は
樹脂成形品１３を基板１４に固定しかつ樹脂収縮を考慮
した切欠部、１７は樹脂成形品１１．１３間の樹脂収縮
を基板１４のそりなく生じさせるための中空部、１８は
樹脂成形品１１．１３間の樹脂収縮により容易に座屈し
得る薄肉樹脂充填部である。DESCRIPTION OF EMBODIMENTS FIGS. 4 and 6 show embodiments of the present invention. 11.13 is a resin molded product, 12 is a resin molded product 11.1
Reinforcing ribs connecting between 3 and 14 are resin molded products 11 and 13
and a substrate for fixing the reinforcing ribs 14, 16 is a resin molded product 11
A substrate to be fixed to all the substrates 14, 16 a notch provided in the substrate 14 for fixing the resin molded product 11 to the substrate 14, 16 a notch for fixing the resin molded product 13 to the substrate 14 and considering resin shrinkage; Reference numeral 17 designates a hollow portion for causing resin contraction between the resin molded products 11 and 13 without warping of the substrate 14, and 18 designates a thin resin filled portion that can easily buckle due to resin contraction between the resin molded products 11 and 13.
このように基板１４のそりなく樹脂収縮させるだめの中
空部１７を形成する金型構造を第６図に示す。２８は上
金型、２９は下金型を示しており、上金型２８には樹脂
成形品１１〜１３をそねぞハ形成させるだめの凹部２１
．２２．２３および基板１４の切欠部１６に対して薄肉
樹脂充填部１８を形成するためあ凸部２７を有する。一
方、下金型２９には樹脂成形品１１を基板１４に固定す
るための固定部形成用の四部２６、樹脂成形品１３を基
板１４に固定するだめの固定部形成用の凹部２６を有す
る、
このような構造の金型を使用し、アウトサート成形法で
基板１４上に樹脂成形品１１．１２．１３を固定する場
合、止金型２８と下金型２９間に切欠部１５．１６を有
する基板１４を挿入し上記基板１４の切欠部１６に上金
型２８に設けた凸部２７を嵌合した状態で樹脂の注入を
行なえばよい。このようにアウトサート成形することに
より第４図および第６図に示すように基板１４に樹脂成
形品１１．１２．１３を成形することができる。FIG. 6 shows a mold structure for forming the hollow portion 17 for resin contraction without warping of the substrate 14 in this manner. Reference numeral 28 indicates an upper mold, and 29 indicates a lower mold. The upper mold 28 has concave portions 21 for forming the resin molded products 11 to 13.
．． 22, 23 and a convex portion 27 for forming a thin resin filling portion 18 in the cutout portion 16 of the substrate 14. On the other hand, the lower mold 29 has four parts 26 for forming a fixing part for fixing the resin molded product 11 to the substrate 14, and a recess 26 for forming a fixing part for fixing the resin molded product 13 to the substrate 14. When using a mold with such a structure and fixing the resin molded product 11, 12, 13 on the substrate 14 by the outsert molding method, a notch 15, 16 is formed between the stopper mold 28 and the lower mold 29. The resin may be injected while the substrate 14 having the above-mentioned structure is inserted and the convex portion 27 provided on the upper mold 28 is fitted into the notch 16 of the substrate 14. By performing outsert molding in this manner, resin molded products 11, 12, and 13 can be molded on the substrate 14 as shown in FIGS. 4 and 6.
以上のように構成された本実施例のアウトサート成形後
の動作について、第７図を用いて簡単に説明する。アウ
トサート成形の結果、第７図イに示すように切欠部１６
内には樹脂の充填されない中空部１７が形成されると共
に切欠部１６内に薄肉樹脂充填部１８が形成される。こ
のアウトサート成形の後に樹脂が収縮を始めると、第７
図口で示されるように薄肉樹脂充填部１８のストレート
部分が容易に座屈し、樹脂収縮時の基板１４への応力集
中を吸収する。よって、基板１４にはそりを生じない。The operation after outsert molding of this embodiment configured as above will be briefly explained using FIG. 7. As a result of outsert molding, a notch 16 is formed as shown in Fig. 7A.
A hollow portion 17 not filled with resin is formed inside, and a thin resin-filled portion 18 is formed within the cutout portion 16 . When the resin begins to shrink after this outsert molding, the seventh
As shown in the figure, the straight portion of the thin resin-filled portion 18 easily buckles, absorbing stress concentration on the substrate 14 when the resin contracts. Therefore, the substrate 14 does not warp.
以上のように本実施例によれば、樹脂成形品固定用の切
欠部１６の形状を長円形とし、この長円形の対向する切
欠部側に中空部１７を形成したことにより、アウトサー
ト成形後の収縮が生じる時に切欠部１６内の中空部１７
の部分に設けた薄肉樹脂充填部１８の座屈が生じ、よっ
て、基板１４のそシを防ぐことができる。さらには、樹
脂成形品１１〜１３間の寸法精度を使用樹脂の収縮率に
適合させて管理でき、平行度も保てるものである。As described above, according to this embodiment, the shape of the notch 16 for fixing the resin molded product is oval, and the hollow part 17 is formed on the opposite notch side of this oval, so that after outsert molding, When contraction occurs, the hollow part 17 in the notch 16
Buckling of the thin resin filled portion 18 provided at the portion occurs, thereby preventing the substrate 14 from warping. Furthermore, the dimensional accuracy between the resin molded products 11 to 13 can be managed in accordance with the shrinkage rate of the resin used, and parallelism can also be maintained.
また、切欠部の形状を長円形にしたことにより、その形
状を容易に基板上でも、金型上でも作成できるものであ
る。Moreover, by making the shape of the cutout part oval, the shape can be easily created either on the substrate or on the mold.
発明の効果
以上のように本発明によれば、基板に設けた樹脂成形品
固定用の切欠部の一部に中空部を形成するようにしたの
で、その切欠部に対向する切欠部間に形成される樹脂成
形品の収縮時の応力を上記中空部にて吸収することがで
き、もって樹脂収縮に起因する基板のそりを防止するこ
とができる利点を有する。Effects of the Invention As described above, according to the present invention, since a hollow portion is formed in a part of the notch provided in the substrate for fixing the resin molded product, the hollow portion is formed between the notches facing the notch. This has the advantage that the stress caused by the shrinkage of the resin molded product can be absorbed by the hollow portion, thereby preventing warpage of the substrate due to resin shrinkage.
第１図、第２図は従来のアウトサート成形法による樹脂
成形品を示す断面図、第３図は第２図の成形品の収縮時
の説明図、第４図は本発明の一実施例を示す断面図、第
６図はその要部の拡大平面である。
１１．１３・・・・・樹脂成形品、１２・・・・・・補
強リブ、１４・・・・・・基板、１５．１６・・・・・
・切欠部、１７・・・・・中空部、１８・・・・・・薄
肉樹脂充填部。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第１
図
第２図
第３図Figures 1 and 2 are cross-sectional views showing resin molded products made by the conventional outsert molding method, Figure 3 is an explanatory diagram of the molded product in Figure 2 when it is contracted, and Figure 4 is an embodiment of the present invention. FIG. 6 is an enlarged plan view of the main part. 11.13...Resin molded product, 12...Reinforcement rib, 14...Substrate, 15.16...
- Notch part, 17...Hollow part, 18...Thin resin filled part. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Figure 3
Claims (2)
際に、その基板に少なくとも２個以上の成形品保持用の
切欠部を設けておき、この切欠部において上記成形品を
アウトサート成形する場合にその切欠部の一部に成形品
が注入されない中空部を形成することを特徴とするアウ
トサート成形法。(1) When outsert molding a synthetic resin molded product onto a substrate, at least two notches for holding the molded product are provided in the substrate, and the molded product is outsert molded in these notches. An outsert molding method is characterized in that a hollow part is formed in a part of the notch into which the molded product is not injected.
充填部を形成し、この充填部を座屈可能に構成すること
を特徴とする特許請求の範囲第１項記載のアウトサート
成形法。(2) Outsert molding according to claim 1, characterized in that a resin filling part is formed around the hollow part along the inner peripheral edge of the cutout part, and the filling part is configured to be buckled. Law.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25135583A JPS60143919A (en) | 1983-12-29 | 1983-12-29 | Outsert molding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25135583A JPS60143919A (en) | 1983-12-29 | 1983-12-29 | Outsert molding process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60143919A true JPS60143919A (en) | 1985-07-30 |
Family
ID=17221592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25135583A Pending JPS60143919A (en) | 1983-12-29 | 1983-12-29 | Outsert molding process |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60143919A (en) |
-
1983
- 1983-12-29 JP JP25135583A patent/JPS60143919A/en active Pending
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