JP3965371B2

JP3965371B2 - Composite molded article and manufacturing method thereof

Info

Publication number: JP3965371B2
Application number: JP2003164955A
Authority: JP
Inventors: 康浩後藤; 英利野村
Original assignee: Shin Etsu Polymer Co Ltd
Current assignee: Shin Etsu Polymer Co Ltd
Priority date: 2003-06-10
Filing date: 2003-06-10
Publication date: 2007-08-29
Anticipated expiration: 2023-06-10
Also published as: JP2005001162A

Description

【０００１】
【発明の属する技術分野】
この発明は、複数の成形体がホルダにより一体に連結されている複合成形品に係り、特に、複数の成形体を樹脂により一体に連結した複合成形品及びその製造方法に関するものである。
【０００２】
【従来の技術】
従来、比較的小さい複数の成形品を熱可塑性樹脂により成形する場合、一つの成形型内に複数の成形品に対応したキャビティを有する成形型を用いて、複数個同時に成形することが一般的に行われている。
【０００３】
このような成形型では、溶融樹脂をランナ、スプール等を経由してゲート部から各成形品に対応した形状のキャビティに供給し、成形型内で固化後に取り出すことにより成形が行われる。成形型から取り出した状態の成形品は、ゲート部に対応した樹脂が一体的に接合した形状を有しているため、取り出し後にゲート部に対応した樹脂を切除することにより、所望の形状の成形品を得ることができる。
【０００４】
ところが、このようにして成形品を成形すると、ゲート部に対応した樹脂を成形品から切除する際、成形品の外形を破損したり、成形品の外形にゲート部の樹脂の一部が残留し易く、成形品の外観を悪化させ易い。そのため、所望の形状を有する成形品の外周に、最終製品で内部に配置されるようなフランジ部を設け、このフランジ部に対応する位置にゲート部を設けることにより、ゲート部の樹脂を切除しても外部に露出される成形品の外観が損なわれることがないようにすることが行われていた。
【０００５】
更に、比較的小さい成形品の場合、複数の成形品間を連続するフランジ部を設け、複数の成形品が一体に連結した状態の成形品として成形することも行われていた（特許文献１参照）。
【０００６】
一方、近年、サブマリン状のゲート部を設けた成形型も使用されている。この成形型では、型開きの際にゲート部の樹脂が成形品から切除されるが、その際、成形品の外形を破損し難く、また、成形品の外形に残留するゲート部の樹脂を少なくできることが知られている。そのため、サブマリン状のゲート部を設けた成形型により複数の成形品を成形する場合には、成形品にフランジ部を設けることなく、優れた外観の複数の成形品を、個々に独立した状態で成形することが可能である。
【０００７】
【特許文献１】
特開２００１−３１２９３４号公報（図４）
【発明が解決しようとする課題】
しかしながら、前述のように、成形品の外周にフランジ部を成形する場合には、成形後に成形品の外形からフランジ部を除去することが困難で、フランジ部の存在しない所望の形状の成形品を優れた外観で製造することが容易でないという問題点があった。
【０００８】
一方、サブマリン状のゲート部を有する成形型を用いて、成形品を成形する場合には、フランジ部の存在しない成形品を個々に独立して成形することができるものの、成形後に各成形品の配向や位置を揃えたり、支持することが容易でなく、取扱い難くて後工程の処理や搬送を行い難いという問題点があった。
【０００９】
そこで、この発明は、所望の形状で優れた外観を有する複数の成形品を容易に分離可能な状態で一体的に保持する複合成形品及びその製造方法を提供することを課題とする。
【００１０】
【課題を解決するための手段】
上記課題を解決するために、請求項１に記載の複合成形品は、所定位置に配置される複数の成形体がホルダに抜き出し可能に一体に保持された複合成形品であって、前記ホルダが、前記複数の成形体の各外周部を密着した状態で保持する複数の保持部を備え、前記複数の保持部は、前記複数の成形体をそれぞれ前記所定位置に対応するように保持すると共に一方向に抜き出し可能に構成され、該保持部が密着する前記成形体の前記外周部が第１の樹脂からなるとともに、前記ホルダの前記保持部が前記第１の樹脂と非相溶性の第２の樹脂からなることを特徴とする。
【００１１】
また、請求項２に記載の複合成形品は、請求項１に記載の構成に加え、前記保持部が、前記成形体の外周部の少なくとも一つの断面方向の全周囲に密着するものであることを特徴とする。
【００１２】
更に、請求項３に記載の複合成形品は、請求項１又は２に記載の構成に加え、前記成形体の外周部と前記ホルダの前記保持部との密着面が、前記ホルダを貫通する軸方向に沿って一定断面形状に形成されていることを特徴する。
【００１３】
また、請求項４に記載の複合成形品は、請求項１又は２に記載の構成に加え、前記成形体の外周部と前記ホルダの前記保持部との密着面が、前記ホルダを貫通する軸方向に沿って傾斜するテーパを有することを特徴する。
【００１４】
更に、請求項５に記載の複合成形品は、請求項３又は４に記載の構成に加え、前記ホルダの前記保持部が前記成形体の外周部を密着する密着面から放射方向に延びる切込みを有することを特徴とする。
【００１５】
また、請求項６に記載の複合成形品は、請求項１乃至５の何れか一つに記載の構成に加え、前記成形体の前記外周部と前記ホルダの前記保持部との前記密着面に、少なくとも一組の回転阻止部を有することを特徴とする。
【００１６】
更に、請求項７に記載の複合成形品は、請求項１乃至６の何れか一つに記載の構成に加え、前記成形体及び前記ホルダがそれぞれ平面状の底面を有し、前記成形体の底面と前記ホルダの底面とが連続する面を構成することを特徴する。
【００１７】
また、請求項８に記載の複合成形品の製造方法は、所定位置に配置される複数の成形体がホルダに抜き出し可能に一体に保持された複合成形品の製造方法であって、前記複数の成形体の外周部を第１の樹脂により成形し、該複数の成形体の周囲に前記第１の樹脂と非相溶性の第２の樹脂を溶融状態で供給することにより、前記第１の樹脂により成形された前記複数の成形体の外周に密着した状態で、前記複数の成形体間を連結する前記ホルダを、前記複数の成形体がそれぞれ前記所定位置に対応するように保持されると共に一方向に抜き出し可能となるように形成することを特徴とする。
【００１８】
更に、請求項９に記載の複合成形品の製造方法は、請求項８に記載の構成に加え、前記成形体の前記第１の樹脂が融点以下の温度の未固化状態で前記第２の樹脂を供給することを特徴とする。
【００１９】
また、請求項１０に記載の複合成形品の製造方法は、請求項８又は９に記載の構成に加え、前記複数の成形体を成形型内にインサートした状態で、前記第２の樹脂を該成形型内に射出成形することを特徴とする。
【００２０】
【発明の実施の形態】
［第１の実施の形態］
以下、この発明の第１の実施の形態について説明する。
【００２１】
図１及び図２はこの実施の形態の複合成形品を示す。
【００２２】
この複合成形品１０は、多数の成形体１２をホルダ１５により一体に連結したものであって、成形体１２の底面１２ａ全体に印刷により形成された表示部１１を備えている。
【００２３】
このような複合成形品１０としては、例えば、携帯電話やリモコンスイッチ等に使用される押釦などの比較的小さい成形体１２が多数成形される物品に適用可能であり、特に、複数の成形体１２を個々に分離した状態で使用されるものに好適である。この第１の実施の形態では、携帯電話の多数の押釦が一体に成形されている。
【００２４】
まず、成形体１２は、押釦となる立体的な形状を有し、外周部１３を含む全体が熱可塑性の第１の樹脂から成形されている。この第１の樹脂としては、例えばＡＢＳ、ＰＣ、ＰＭＭＡ、ＰＥＴ、ＰＢＴ、ＰＰ、ＰＥ、ＡＳ、ＰＯＭなどの一種又は２種以上を適宜選択して使用することができる。なお、この第１の実施の形態では、透明な樹脂が用いられており、表示部１１が成形体１２を透過して頂部側から視認可能となっている。
【００２５】
一方、ホルダ１５は、複数の成形体１２の側面側の外周部１３に密着して保持する保持部１６を備え、成形体１２の厚さより薄肉の板状に、且つ、複数の成形体１２間を連続するように成形されている。ここでは、図２に示すように、成形体１２の側面側の外周部１３の一つの断面方向の全周囲にホルダ１５の保持部１６が密着している。
【００２６】
保持部１６はホルダ１５を貫通した状態で形成されており、成形体１２がホルダ１５を貫通して表裏両面側に露出した状態で保持されている。
【００２７】
また、このホルダ１５の保持部１６と成形体１２の外周部１３との密着面は、板状のホルダ１５を貫通する軸Ｌ方向に沿って断面形状が一定に形成されており、成形体１２がホルダ１５の表裏両面側に摺動可能となっている。
【００２８】
更に、成形体１２の底面１２ａとホルダ１５の底面１５ａとはそれぞれ平面形状に成形されており、ホルダ１５に成形体１２が保持された状態で、両底面１２ａ、１５ａが連続する平面を構成するようになっている。
【００２９】
そして、このホルダ１５は、保持部１６を含む全体が成形体１２を構成する第１の樹脂と非相溶性の第２の樹脂から成形されている。この第２の樹脂としては、前記第１の樹脂と同様の樹脂が例示できるが、第１の樹脂とは非相溶性の樹脂を選択して使用する必要がある。即ち、第１の樹脂に密着した状態で成形しても、剥離可能な樹脂を第２の樹脂として用いる。
【００３０】
具体的には、例えば、第１の樹脂をＰＣとした場合は、第２の樹脂は前述した第１の樹脂からＰＣを除いたもの、例えば、ＡＢＳ、ＰＭＭＡ等から選択すればよい。また、例えば、第１の樹脂をＰＭＭＡとした場合は、第２の樹脂は前述した第１の樹脂からＰＭＭＡを除いたもの、例えば、ＰＣ、ＰＰ等から選択すればよい。
【００３１】
なお、第１の樹脂と第２の樹脂とは非相溶性でさえあれば、同一名称の樹脂であっても使用することができる。つまり、広い意味では同一名称の樹脂同士ではあっても、融点、密度、流動性等が異なるように添加剤の配合量を変えた二つの樹脂同士（グレードが異なる二種の樹脂）であっても非相溶性である限り、第１の樹脂、第２の樹脂として用いることができる。具体例とすれば、メルトフローレートの差が４０以上離れたＰＣ２種を第１の樹脂、第２の樹脂として用いることができる。なお、この第１の樹脂及び第２の樹脂を選択するにあたっては、分離の操作を考慮して行うのが好ましい。
【００３２】
更に、表示部１１は、前記のように、成形体１２がホルダ１５に保持された状態で印刷されており、ここでは、成形体１２の底面１２ａより広い範囲、即ち、周囲のホルダー１５の底面１５ａを含む範囲に施されている。ホルダ１５から成形体１２を分離すると、成形体１２の底面１２ａ全体に表示部１１が形成されるようになっている。
【００３３】
以上のような構成の複合成形品１０においては、ホルダ１５が各成形体１２の外周部１３を密着した状態で保持する保持部１６を有しており、ホルダ１５の保持部１６と、この保持部１６が密着する成形体１２の外周部１３とが、互いに非相溶性の樹脂により形成されているため、成形体１２の外周部１３とホルダ１５の保持部１６とを密着させていても互いに融着等により強固に接合されることはなく、多数の成形体１２をホルダ１５の保持部１６から分離することが可能である。
【００３４】
そのため、複数の成形体１２を一体的に保持することができるとともに、各成形品を使用時にそれぞれホルダ１５から分離して、独立した状態で取り出すことが可能である。
【００３５】
また、この複合成形品１０によれば、成形体１２の外周部１３とホルダ１５の保持部１６との密着面の軸Ｌ方向の断面形状が一定であるため、ホルダ１５の表裏両面側の方向に成形体１２を保持部１６に対して摺動させて取り出すことが可能であり、成形体１２をホルダ１５から分離させやすい。
【００３６】
なお、上記第１の実施の形態では、ホルダ１５の保持部１６が板状に形成された例を説明したが、例えば、図３に示すように、ホルダ１５の保持部１６に、密着面から放射方向に延びる切込み２１を形成することも可能である。その場合、成形体１２を取り出す際、ホルダ１５の保持部１６が拡開し易くなり、各成形体１２をホルダ１５からより分離し易くすることができる。
【００３７】
また、上記第１の実施の形態では、ホルダ１５として、多数の成形体１２の外周の全周囲に密着した保持部を備えたものについて説明したが、図４に示すように、成形体１２の外周周囲の複数箇所に密着する保持部１６を有するようにホルダを構成することも可能である。
【００３８】
更に、上記第１の実施の形態では、成形体１２の底面１２ａ及びその周囲のホルダ１５の底面１５ａ毎に印刷して表示部１１が形成されているが、両底面１２ａ、１５ａの全面に印刷されることにより形成された表示部１１を設けていてもよく、また、表示部１１や他の表面処理部分を形成していないものであってもよい。
【００３９】
次に、このような複合成形品１０を製造する方法について、図５乃至図９を用いて説明する。
【００４０】
この複合成形品１０を製造するには、まず、図５に示すようなサブマリンゲート２４及び突き出し部２６を有する射出成形型２５において、各成形体１２に対応した形状のキャビティ２７にサブマリンゲート２４から溶融状態の第１の樹脂を射出して複数の成形体１２を成形する。そして、冷却後、型開きして突き出し部２６により押圧して取り出すことにより、サブマリンゲート２４に対応した樹脂をキャビティ２７に対応した樹脂から切除し、所望の形状を有して優れた外観の成形体１２を得る。
【００４１】
次に、図６に示すように、得られた複数の成形体１２を、ホルダ１５に対応した形状のキャビティ２９を有する別の成形型２８に、成形体１２の底面１２ａがキャビティ２９の底面２９ａに当接した状態でインサートし、第１の樹脂と非相溶性の第２の樹脂を溶融状態でキャビティ２９に射出することによりホルダ１５を成形する。この第１の実施の形態では、第２の樹脂は成形体１２が融点以下の未固化の状態で供給している。そして、成形型２８内で固化後に取り出すことにより、表示部１１のない複合成形品１０が得られる。
【００４２】
このホルダ１５の成形では、第２の樹脂が溶融状態でキャビティ２９内の成形体１２の外周に接する周囲に射出されるため、ホルダ１５の保持部１６が各成形体１２の外周部１３に十分に密着した状態で成形することができる。
【００４３】
その後、表示部１１のない複合成形品をホルダ１５を利用して治具等に固定し、図７に示すように、複数の成形体１２の各底面１２ａ及びその周囲のホルダ１５の底面１５ａに印刷を施すことにより、表示部１１を形成する。これにより図１及び図２に示すような複合成形品１０が得られる。
【００４４】
次に、得られた複合成形品１０を用いて、携帯電話の押釦スイッチ構造体３０を製造する方法について説明する。
【００４５】
ここでは、図８に示すように、図示しないプリント配線板に対向して配置される弾性成形体３３を、エラストマー、各種のゴム等から予め形成しておき、この弾性成形体３３の押釦配置部３２に各成形体１２をそれぞれ接着等により接合することにより、押釦スイッチ構造体３０を製造する。
【００４６】
このとき、複合成形品１０の各成形体１２が、弾性成形体３３の複数の押釦配置部３２の位置に対応するようにホルダ１５に保持されているため、ホルダ１５に保持された状態のままで各成形体１２を弾性成形体３３に貼り付ければ、各押釦配置部３２のそれぞれに成形体１２を貼付けることができる。そして、ホルダ１５を一方向に抜き出して除去すれば、押釦スイッチ構造体３０を製造することができる。
【００４７】
以上のようにして、複合成形品を製造すれば、複数の成形体１２の外周部を第１の樹脂により成形し、その周囲に第１の樹脂と非相溶性の第２の樹脂を溶融状態で供給し、外周部１３に密着した状態で複数の成形体１２間を連結するホルダ１５を形成するので、ホルダ１５の保持部１６と成形体１２の外周部１３とを密着した状態で容易に一体に成形することが可能であるとともに、一体に成形していてもホルダ１５の保持部１６と成形体１２の外周部１３のと間が融着等により強固に接合されることがない。そのため、複合成形品１０の使用時に弾性成形体３３に各成形体１２を貼り付けた後、容易に各成形体１２をホルダ１５から、それぞれ独立に分離することができる。
【００４８】
また、成形体１２の第１の樹脂が未固化状態の融点以下の温度でホルダ１５の第２の樹脂を供給するので、第１の樹脂の流動性がなくて、成形体１２の外周部１３やホルダ１５が塑性変形し難いとともに、成形体１２の外周部１３とホルダ１５の保持部１６とを弾性等によって、確実に密着させ易い。
【００４９】
更に、複数の成形体１２を成形型２８内にインサートした状態で第２の樹脂を射出成形するので、複数の成形体１２をホルダ１５の所定位置に一体に固定することが容易である。
【００５０】
また、成形体１２及びホルダ１５の底面１２ａ、１５ａがそれぞれ連続する平面を構成するように形成されているため、成形後に多数の成形体１２の底面１２ａに印刷により表示部１１を形成する際、各成形体１２の底面１２ａより広い平面を確保することができ、成形体１２の底面１２ａ全体に印刷を施し易く、印刷時に底面１２ａの周縁が変形し難い。
【００５１】
なお、上記第１の実施の形態では、成形体１２とホルダ１５とをそれぞれ別々の成形型２５、２８を用いて形成したが、同じ成形型を用いて、成形体１２を成形型から取出すことなく、連続して複合成形品１０を成形することも可能である。
【００５２】
また、上記第１の実施の形態では、成形体１２及びホルダ１５として、それぞれが単一の樹脂から成形されたものについて説明したが、この発明では、成形体１２の外周部１３及び／又はホルダ１５の保持部１６のうち、密着面が互いに非相溶性の樹脂から形成されていればよく、それぞれ、二色成形品等の複数の樹脂から成形されたものであってもよい。
【００５３】
更に、上記第１の実施の形態では、ホルダ１５の保持部１６がホルダ１５を貫通した状態で成形する例について説明したが、非貫通状態の穴状に形成された保持部であってもよく、ホルダ１５の一方の面に成形体１２が露出して他方の面には露出しない状態で保持することも可能である。
【００５４】
また、上記第１の実施の形態では、成形体１２として、フランジ部のない形状のものを用いたが、フランジ部を有する形状であってもよく、フランジ部や他の部分をホルダ１５により密着した状態で保持することが可能である。
【００５５】
［第２の実施の形態］
図９は、第２の実施の形態の複合成形品の一部の断面図である。
【００５６】
この複合成形品は、成形体１２の外周部１３とホルダ１５の保持部１６との密着面が、板状のホルダ１５を貫通する軸Ｌ方向に沿って傾斜するテーパ３５を有している。その他は、第１の実施の形態と同様である。
【００５７】
このような複合成形品１０によれば、断面形状が縮小する方向には成形体１２を取出すことができないとともに、逆方向には第１の実施の形態のように同一断面形状に形成されたものより成形体１２の取出しが容易であり、複数の成形体１２を確実に保持し易いとともに、より分離し易くすることができる。
【００５８】
［第３の実施の形態］
図１０は、第３の実施の形態の複合成形品の一部を示している。
【００５９】
この複合成形品では、成形体１２の外周部１３とホルダ１５の保持部１６との密着面に、それぞれ凹部３４及び凸部３５からなる回転阻止部３６を有している。その他は、第１の実施の形態と同様である。
【００６０】
このような複合成形品によれば、成形体１２がホルダ１５に保持された状態及び成形体１２をホルダ１５から分離する際に、成形体１２の回転方向の向きを規制することができ、後工程で成形体１２を使用する際に成形体の位置合わせを容易にすることができる。
【００６１】
【発明の効果】
以上詳述の通り、請求項１又は２に記載の複合成形品によれば、複数の成形体を一体に連結するホルダが、各成形体の外周部を密着した状態で保持する保持部を備え、この保持部が密着する成形体の外周部が第１の樹脂からなるとともに、保持部が第１の樹脂と非相溶性の第２の樹脂からなるので、複数の成形体の外周部とホルダの保持部とを密着させても互いに融着等により強固に接合されることがなく、多数の成形体をホルダの保持部から各成形品を分離することが可能である。そのため、所望の形状で優れた外観を有する複数の成形品を、容易に分離可能な状態でホルダにより一体的に保持することができ、使用時にそれぞれ別々にホルダから分離して、独立した状態で取り出すことが可能である。
【００６２】
また、請求項３に記載の複合成形品によれば、成形体の外周部とホルダの保持部との密着面が、ホルダを貫通する軸方向に沿って一定断面形状に形成されているので、その軸に沿う方向に成形体の外周部をホルダの保持部に対して摺動させ易く、成形体を容易にホルダから分離することが容易である。
【００６３】
更に、請求項４に記載の複合成形品によれば、成形体の外周部とホルダの保持部との密着面がホルダを貫通する軸方向に沿って傾斜するテーパを有するので、断面形状が縮小する方向には成形体を取出すことができないとともに、逆方向には容易に取出すことが可能であり、複数の成形体を確実にホルダに保持し易いと同時に、より分離し易くすることが可能になる。
【００６４】
また、請求項５に記載の複合成形品によれば、ホルダの保持部が成形体の外周部と密着する密着面から放射方向に延びる切込みを有するので、成形体を取り出す際、ホルダの保持部を拡開させることができ、各成形体をホルダから更に分離し易くすることができる。
【００６５】
更に、請求項６に記載の複合成形品によれば、成形体の外周部とホルダの保持部との密着面に、少なくとも一組の回転阻止部を有するので、成形体がホルダに保持された状態及び成形体をホルダから分離する際に、成形体の回転方向の向きを規制することができ、各成形体を使用し易い。
【００６６】
更に、請求項７に記載の複合成形品によれば、成形体及びホルダがそれぞれ平面状の底面を有し、成形体の底面とホルダの底面とが連続する面を構成するので、成形後に多数の成形体の底面に印刷等の各種の後処理を施す際、各成形体の底面より広い平面を確保することができて、成形体の底面全体に印刷等の後処理を施し易いとともに、成形体の底面の周縁がその後処理により変形し難い。
【００６７】
そして、請求項８に記載の複合成形品の製造方法によれば、複数の成形体の外周部を第１の樹脂により成形し、その周囲に第１の樹脂と非相溶性の第２の樹脂を溶融状態で供給し、外周部に密着した状態で複数の成形体間を連結するホルダを形成するので、ホルダの保持部と成形体の外周部とを密着した状態で容易に一体に成形することが可能であるとともに、一体に成形してもホルダの保持部と成形体の外周部のと間が融着等により強固に接合されることがなく、成形体を分離可能な状態でホルダにより保持することができる複合成形品を製造することが可能である。
【００６８】
また、請求項９に記載の複合成形品の製造方法にれば、成形体の第１の樹脂が融点以下の温度の未固化状態で第２の樹脂を供給するので、第１の樹脂の流動性がなく、ホルダの保持部の第２の樹脂の供給時に成形体の外周部が塑性変形を抑えて、ホルダの成形時に成形体の外周部の形状を維持し易いとともに、成形体の外周部とホルダの保持部とを弾性により確実に保持し易い。
【００６９】
更に、請求項１０に記載の複合成形品の製造方法によれば、複数の成形体を成形型内にインサートした状態で第２の樹脂を成形型内に射出成形するので、複数の成形体をホルダの所定位置に一体に固定することが容易である。
【図面の簡単な説明】
【図１】この発明の第１の実施の形態の複合成形品の断面図である。
【図２】同実施の形態の底面の一部を示す図である。
【図３】同実施の形態の変形例の底面の一部を示す図である。
【図４】同実施の形態の他の変形例の底面の一部を示す図である。
【図５】同実施の形態の複合成形品の各成形体を成形する成形型の断面図である。
【図６】同実施の形態の複合成形品のホルダを成形する成形型の断面図である。
【図７】同実施の形態の表示部のない複合成形品の断面図である。
【図８】同実施の形態の押釦シート構造体の断面を示す図である。
【図９】この発明の第２の実施の形態の複合成形品の断面図である。
【図１０】この発明の第３の実施の形態の複合成形品の底面を示す図である。
【符号の説明】
１０複合成形品
１１表示部
１２成形体
１３外周部
１５ホルダ
１６保持部
２５、２８成形型[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a composite molded product in which a plurality of molded bodies are integrally connected by a holder, and more particularly to a composite molded product in which a plurality of molded bodies are integrally connected by a resin and a manufacturing method thereof.
[0002]
[Prior art]
Conventionally, when molding a plurality of relatively small molded products with a thermoplastic resin, it is generally performed simultaneously using a mold having cavities corresponding to a plurality of molded products in one mold. Has been done.
[0003]
In such a mold, molding is performed by supplying molten resin from a gate portion to a cavity having a shape corresponding to each molded product via a runner, a spool, and the like, and taking out after solidification in the mold. Since the molded product in the state of being taken out from the mold has a shape in which the resin corresponding to the gate portion is integrally joined, the resin corresponding to the gate portion is removed after being taken out, thereby forming a desired shape. Goods can be obtained.
[0004]
However, when the molded product is molded in this way, when the resin corresponding to the gate portion is cut from the molded product, the outer shape of the molded product is damaged, or a part of the resin of the gate portion remains in the outer shape of the molded product. It is easy to deteriorate the appearance of the molded product. For this reason, a flange portion that is arranged inside the final product is provided on the outer periphery of a molded product having a desired shape, and the gate portion is provided at a position corresponding to the flange portion, so that the resin in the gate portion is cut off. However, the appearance of the molded product exposed to the outside is not impaired.
[0005]
Furthermore, in the case of a comparatively small molded product, a flange portion that is continuous between a plurality of molded products is provided, and the molded product is molded as a molded product in a state in which the molded products are integrally connected (see Patent Document 1). ).
[0006]
On the other hand, in recent years, a mold having a submarine-like gate portion is also used. In this mold, the resin of the gate part is cut off from the molded product when the mold is opened. At that time, the outer shape of the molded product is hardly damaged, and the resin of the gate part remaining in the outer shape of the molded product is reduced. It is known that it can be done. Therefore, when molding a plurality of molded products with a molding die provided with a submarine-like gate portion, a plurality of molded products with excellent appearance can be obtained independently without providing a flange portion on the molded product. It is possible to mold.
[0007]
[Patent Document 1]
Japanese Patent Laying-Open No. 2001-31934 (FIG. 4)
[Problems to be solved by the invention]
However, as described above, when the flange portion is formed on the outer periphery of the molded product, it is difficult to remove the flange portion from the outer shape of the molded product after molding, and a molded product having a desired shape without the flange portion is obtained. There was a problem that it was not easy to manufacture with an excellent appearance.
[0008]
On the other hand, when molding a molded product using a molding die having a submarine-like gate portion, molded products without a flange portion can be individually molded independently. There is a problem in that it is difficult to align and support the orientation and position, and it is difficult to handle and to carry out post-processing and transport.
[0009]
Accordingly, an object of the present invention is to provide a composite molded product that integrally holds a plurality of molded products having a desired shape and an excellent appearance in a state where they can be easily separated, and a method for manufacturing the same.
[0010]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the composite molded product according to claim 1 is a composite molded product in which a plurality of molded products arranged at predetermined positions are integrally held so as to be extractable to a holder, and the holder includes A plurality of holding portions that hold the outer peripheral portions of the plurality of molded bodies in close contact with each other, and the plurality of holding portions hold the plurality of molded bodies so as to correspond to the predetermined positions, respectively. The outer peripheral portion of the molded body is configured to be able to be pulled out in the direction, and the holding portion is in close contact with the first resin, and the holding portion of the holder is a second incompatible with the first resin. It consists of resin.
[0011]
Further, in the composite molded product according to claim 2, in addition to the configuration according to claim 1, the holding portion is in close contact with the entire circumference in at least one cross-sectional direction of the outer peripheral portion of the molded body. It is characterized by.
[0012]
Furthermore, in addition to the structure of Claim 1 or 2, the composite molded product of Claim 3 is an axis | shaft which the contact | adherence surface of the outer peripheral part of the said molded object and the said holding | maintenance part of the said holder penetrates the said holder. It is characterized by having a constant cross-sectional shape along the direction.
[0013]
In addition to the structure of claim 1 or 2, the composite molded product according to claim 4 is a shaft in which a contact surface between the outer peripheral portion of the molded body and the holding portion of the holder penetrates the holder. It is characterized by having a taper inclined along the direction.
[0014]
Furthermore, the composite molded product according to claim 5 has a notch extending in a radial direction from a contact surface where the holding portion of the holder closely contacts the outer peripheral portion of the molded body in addition to the configuration according to claim 3 or 4. It is characterized by having.
[0015]
In addition to the structure according to any one of claims 1 to 5, the composite molded product according to claim 6 is provided on the contact surface between the outer peripheral portion of the molded body and the holding portion of the holder. And at least one set of rotation preventing portions.
[0016]
Furthermore, in the composite molded article according to claim 7, in addition to the configuration according to any one of claims 1 to 6, the molded body and the holder each have a flat bottom surface, The bottom surface and the bottom surface of the holder constitute a continuous surface.
[0017]
The method of manufacturing a composite molded product according to claim 8 is a method of manufacturing a composite molded product in which a plurality of molded bodies arranged at predetermined positions are integrally held so as to be extractable to a holder . The outer periphery of the molded body is molded with the first resin, and the second resin that is incompatible with the first resin is supplied in a molten state around the plurality of molded bodies. The holder that connects the plurality of molded bodies in a state of being in close contact with the outer circumferences of the plurality of molded bodies formed by the above-described method is configured so that the plurality of molded bodies are respectively held so as to correspond to the predetermined positions. It is formed so that it can be extracted in the direction .
[0018]
Furthermore, the manufacturing method of the composite molded product according to claim 9 adds the second resin in the unsolidified state at a temperature equal to or lower than the melting point of the molded product, in addition to the configuration according to claim 8. It is characterized by supplying.
[0019]
In addition to the configuration according to claim 8 or 9, the method for manufacturing a composite molded article according to claim 10 adds the second resin in a state where the plurality of molded bodies are inserted into a mold. It is characterized by injection molding in a mold.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
[First Embodiment]
The first embodiment of the present invention will be described below.
[0021]
1 and 2 show a composite molded article of this embodiment.
[0022]
This composite molded product 10 is obtained by integrally connecting a large number of molded bodies 12 with a holder 15, and includes a display unit 11 formed on the entire bottom surface 12 a of the molded body 12 by printing.
[0023]
As such a composite molded article 10, for example, it can be applied to an article in which a large number of relatively small molded bodies 12 such as push buttons used for cellular phones, remote control switches, etc. are molded. It is suitable for what is used in the state isolate | separated separately. In the first embodiment, a large number of push buttons of a mobile phone are integrally formed.
[0024]
First, the molded body 12 has a three-dimensional shape to be a push button, and the whole including the outer peripheral portion 13 is molded from a thermoplastic first resin. As this 1st resin, 1 type, or 2 or more types, such as ABS, PC, PMMA, PET, PBT, PP, PE, AS, POM, can be selected suitably and used, for example. In the first embodiment, a transparent resin is used, and the display unit 11 is visible from the top side through the molded body 12.
[0025]
On the other hand, the holder 15 includes a holding portion 16 that is in close contact with the outer peripheral portion 13 on the side surface side of the plurality of molded bodies 12, has a plate shape that is thinner than the thickness of the molded body 12, and between the plurality of molded bodies 12. Are formed to be continuous. Here, as shown in FIG. 2, the holding portion 16 of the holder 15 is in close contact with the entire circumference in one sectional direction of the outer peripheral portion 13 on the side surface side of the molded body 12.
[0026]
The holding part 16 is formed in a state of penetrating the holder 15, and is held in a state in which the molded body 12 penetrates the holder 15 and is exposed on both the front and back sides.
[0027]
Further, the close contact surface between the holding portion 16 of the holder 15 and the outer peripheral portion 13 of the molded body 12 is formed to have a constant cross-sectional shape along the axis L direction penetrating the plate-shaped holder 15. Is slidable on both the front and back sides of the holder 15.
[0028]
Further, the bottom surface 12a of the molded body 12 and the bottom surface 15a of the holder 15 are each formed into a planar shape, and form a plane in which both the bottom surfaces 12a and 15a are continuous with the molded body 12 held by the holder 15. It is like that.
[0029]
The holder 15 as a whole including the holding portion 16 is molded from a second resin that is incompatible with the first resin constituting the molded body 12. The second resin can be exemplified by the same resin as the first resin, but it is necessary to select and use a resin that is incompatible with the first resin. That is, a resin that can be peeled even when molded in close contact with the first resin is used as the second resin.
[0030]
Specifically, for example, when the first resin is PC, the second resin may be selected from those obtained by removing PC from the first resin, for example, ABS, PMMA, and the like. For example, when the first resin is PMMA, the second resin may be selected from those obtained by removing PMMA from the first resin, for example, PC, PP, and the like.
[0031]
In addition, even if it is resin of the same name, as long as 1st resin and 2nd resin are incompatible, it can be used. In other words, in the broad sense, even if they are resins with the same name, they are two resins (two types of resins with different grades) in which the compounding amount of the additive is changed so that the melting point, density, fluidity, etc. are different. As long as they are also incompatible, they can be used as the first resin and the second resin. As a specific example, two types of PC having a difference in melt flow rate of 40 or more can be used as the first resin and the second resin. Note that the selection of the first resin and the second resin is preferably performed in consideration of the separation operation.
[0032]
Further, as described above, the display unit 11 is printed in a state where the molded body 12 is held by the holder 15. Here, the display unit 11 is wider than the bottom surface 12 a of the molded body 12, that is, the bottom surface of the surrounding holder 15. It is given to the range including 15a. When the molded body 12 is separated from the holder 15, the display unit 11 is formed on the entire bottom surface 12 a of the molded body 12.
[0033]
In the composite molded product 10 having the above-described configuration, the holder 15 has the holding portion 16 that holds the outer peripheral portion 13 of each molded body 12 in close contact with the holding portion 16 of the holder 15 and the holding portion 16. Since the outer peripheral portion 13 of the molded body 12 to which the portion 16 is in close contact is formed of mutually incompatible resins, the outer peripheral portion 13 of the molded body 12 and the holding portion 16 of the holder 15 are in close contact with each other. A large number of molded bodies 12 can be separated from the holding portion 16 of the holder 15 without being firmly bonded by fusion or the like.
[0034]
Therefore, the plurality of molded bodies 12 can be held integrally, and each molded product can be separated from the holder 15 during use and taken out independently.
[0035]
Further, according to this composite molded product 10, the cross-sectional shape in the axis L direction of the contact surface between the outer peripheral portion 13 of the molded body 12 and the holding portion 16 of the holder 15 is constant. The molded body 12 can be slid with respect to the holding portion 16 and taken out, and the molded body 12 can be easily separated from the holder 15.
[0036]
In the first embodiment, the example in which the holding portion 16 of the holder 15 is formed in a plate shape has been described. For example, as shown in FIG. It is also possible to form cuts 21 extending in the radial direction. In that case, when the molded body 12 is taken out, the holding portion 16 of the holder 15 is easily expanded, and each molded body 12 can be more easily separated from the holder 15.
[0037]
Moreover, in the said 1st Embodiment, although what provided the holding | maintenance part closely_contact | adhered to the perimeter of many outer periphery of many molded objects 12 was demonstrated as the holder 15, as shown in FIG. It is also possible to configure the holder so as to have the holding portions 16 that are in close contact with a plurality of locations around the outer periphery.
[0038]
Furthermore, in the said 1st Embodiment, although it prints for every bottom face 12a of the molded object 12 and the bottom face 15a of the holder 15 of the circumference | surroundings, the display part 11 is formed, it prints on the whole surface of both bottom face 12a, 15a. The display part 11 formed by doing may be provided, and the display part 11 and other surface treatment parts may not be formed.
[0039]
Next, a method for manufacturing such a composite molded article 10 will be described with reference to FIGS.
[0040]
In order to manufacture the composite molded article 10, first, in an injection mold 25 having a submarine gate 24 and a protruding portion 26 as shown in FIG. 5, a cavity 27 having a shape corresponding to each molded body 12 is inserted from the submarine gate 24. A plurality of molded bodies 12 are molded by injecting a molten first resin. Then, after cooling, the mold is opened and pressed by the protruding portion 26 to be taken out, so that the resin corresponding to the submarine gate 24 is cut out from the resin corresponding to the cavity 27, and has a desired shape and molded with an excellent appearance. A body 12 is obtained.
[0041]
Next, as shown in FIG. 6, the obtained plurality of molded bodies 12 are transferred to another mold 28 having a cavity 29 having a shape corresponding to the holder 15, and the bottom surface 12 a of the molded body 12 is replaced with the bottom surface 29 a of the cavity 29. The holder 15 is molded by injecting the second resin incompatible with the first resin into the cavity 29 in a molten state. In the first embodiment, the second resin is supplied in an unsolidified state where the molded body 12 has a melting point or lower. The composite molded product 10 without the display unit 11 is obtained by taking out the solidified product in the mold 28.
[0042]
In the molding of the holder 15, since the second resin is injected in a molten state around the periphery of the molded body 12 in the cavity 29, the holding portion 16 of the holder 15 is sufficient for the outer circumferential portion 13 of each molded body 12. It can shape | mold in the state closely_contact | adhered to.
[0043]
Thereafter, the composite molded product without the display unit 11 is fixed to a jig or the like using the holder 15, and as shown in FIG. 7, the bottom surface 12 a of the plurality of molded bodies 12 and the bottom surface 15 a of the holder 15 around it. The display unit 11 is formed by printing. Thereby, a composite molded article 10 as shown in FIGS. 1 and 2 is obtained.
[0044]
Next, a method for manufacturing the push button switch structure 30 of the mobile phone using the obtained composite molded article 10 will be described.
[0045]
Here, as shown in FIG. 8, an elastic molded body 33 arranged to face a printed wiring board (not shown) is formed in advance from an elastomer, various rubbers, etc., and a push button arrangement portion of the elastic molded body 33 is formed. The push button switch structure 30 is manufactured by bonding the molded bodies 12 to the respective parts 32 by bonding or the like.
[0046]
At this time, since each molded body 12 of the composite molded product 10 is held by the holder 15 so as to correspond to the positions of the plurality of push button arrangement portions 32 of the elastic molded body 33, it remains in the state held by the holder 15. If each molded body 12 is affixed to the elastic molded body 33, the molded body 12 can be affixed to each push button arrangement portion 32. And if the holder 15 is extracted and removed in one direction, the pushbutton switch structure 30 can be manufactured.
[0047]
When a composite molded product is manufactured as described above, the outer peripheral portions of the plurality of molded bodies 12 are molded with the first resin, and the second resin that is incompatible with the first resin is melted around the outer periphery. The holder 15 that connects the plurality of molded bodies 12 in a state of being in close contact with the outer peripheral portion 13 is formed, so that the holder 16 of the holder 15 and the outer peripheral portion 13 of the molded body 12 can be easily in close contact with each other. In addition to being integrally molded, the holding portion 16 of the holder 15 and the outer peripheral portion 13 of the molded body 12 are not firmly joined by fusion or the like. Therefore, after bonding each molded body 12 to the elastic molded body 33 when the composite molded product 10 is used, each molded body 12 can be easily separated from the holder 15 independently.
[0048]
Further, since the second resin of the holder 15 is supplied at a temperature equal to or lower than the melting point of the unsolidified state of the first resin of the molded body 12, there is no fluidity of the first resin, and the outer peripheral portion 13 of the molded body 12. In addition, the holder 15 is difficult to be plastically deformed, and the outer peripheral portion 13 of the molded body 12 and the holding portion 16 of the holder 15 are easily brought into close contact with each other by elasticity or the like.
[0049]
Furthermore, since the second resin is injection-molded with the plurality of molded bodies 12 inserted into the molding die 28, it is easy to integrally fix the plurality of molded bodies 12 to a predetermined position of the holder 15.
[0050]
In addition, since the molded body 12 and the bottom surfaces 12a of the holder 15 are formed so as to form a continuous plane, when the display unit 11 is formed by printing on the bottom surfaces 12a of a large number of molded bodies 12 after molding, A plane wider than the bottom surface 12a of each molded body 12 can be secured, and printing is easily performed on the entire bottom surface 12a of the molded body 12, and the periphery of the bottom surface 12a is difficult to deform during printing.
[0051]
In addition, in the said 1st Embodiment, although the molded object 12 and the holder 15 were formed using the separate shaping | molding dies 25 and 28, respectively, taking out the molded object 12 from a shaping | molding die using the same shaping | molding die. Alternatively, the composite molded article 10 can be formed continuously.
[0052]
In the first embodiment, the molded body 12 and the holder 15 are each molded from a single resin. However, in the present invention, the outer peripheral portion 13 and / or the holder of the molded body 12 are described. Of the 15 holding portions 16, the contact surfaces may be formed from mutually incompatible resins, and each may be formed from a plurality of resins such as a two-color molded product.
[0053]
Furthermore, in the first embodiment, the example in which the holding portion 16 of the holder 15 is molded in a state of penetrating the holder 15 has been described. However, the holding portion may be a non-penetrating hole shape. The molded body 12 can be held on one surface of the holder 15 and not exposed on the other surface.
[0054]
In the first embodiment, the molded body 12 has a shape without a flange portion. However, the molded body 12 may have a shape having a flange portion, and the flange portion and other portions are brought into close contact with the holder 15. It is possible to hold in the state.
[0055]
[Second Embodiment]
FIG. 9 is a partial cross-sectional view of the composite molded product of the second embodiment.
[0056]
In this composite molded product, the contact surface between the outer peripheral portion 13 of the molded body 12 and the holding portion 16 of the holder 15 has a taper 35 inclined along the axis L direction penetrating the plate-like holder 15. Others are the same as those in the first embodiment.
[0057]
According to such a composite molded product 10, the molded body 12 cannot be taken out in the direction in which the cross-sectional shape is reduced, and is formed in the reverse direction in the same cross-sectional shape as in the first embodiment. Further, the molded body 12 can be easily taken out, and the plurality of molded bodies 12 can be reliably held and can be more easily separated.
[0058]
[Third Embodiment]
FIG. 10 shows a part of the composite molded product of the third embodiment.
[0059]
In this composite molded product, rotation preventing portions 36 each including a concave portion 34 and a convex portion 35 are provided on the contact surface between the outer peripheral portion 13 of the molded body 12 and the holding portion 16 of the holder 15. Others are the same as those in the first embodiment.
[0060]
According to such a composite molded product, when the molded body 12 is held by the holder 15 and when the molded body 12 is separated from the holder 15, the direction of the molded body 12 in the rotation direction can be regulated. When using the molded body 12 in the process, positioning of the molded body can be facilitated.
[0061]
【The invention's effect】
As described above in detail, according to the composite molded product according to claim 1 or 2, the holder that integrally connects a plurality of molded bodies includes a holding portion that holds the outer peripheral portion of each molded body in close contact. Since the outer peripheral portion of the molded body to which the holding portion is in close contact is made of the first resin and the holding portion is made of the second resin that is incompatible with the first resin, the outer peripheral portion of the plurality of molded bodies and the holder Even if the holding parts are brought into close contact with each other, they are not firmly joined to each other by fusion or the like, and it is possible to separate each molded product from the holding parts of the holder. Therefore, a plurality of molded products having an excellent appearance in a desired shape can be integrally held by the holder in a state where they can be easily separated, and separated from the holder separately at the time of use. It is possible to take it out.
[0062]
Further, according to the composite molded product according to claim 3, the contact surface between the outer peripheral portion of the molded body and the holding portion of the holder is formed in a constant cross-sectional shape along the axial direction penetrating the holder. The outer peripheral portion of the molded body can be easily slid with respect to the holder holding portion in the direction along the axis, and the molded body can be easily separated from the holder.
[0063]
Furthermore, according to the composite molded product according to claim 4, since the contact surface between the outer peripheral portion of the molded body and the holder holding portion has a taper inclined along the axial direction penetrating the holder, the cross-sectional shape is reduced. The molded body cannot be taken out in the direction to be moved, and can be easily taken out in the opposite direction, so that it is easy to securely hold the plurality of molded bodies in the holder and at the same time make it easier to separate them. Become.
[0064]
According to the composite molded product of claim 5, since the holder holding portion has a notch extending in the radial direction from the close contact surface that is in close contact with the outer peripheral portion of the molded body, when the molded body is taken out, the holder holding portion Can be expanded, and each molded body can be further easily separated from the holder.
[0065]
Furthermore, according to the composite molded product according to claim 6, since the at least one set of rotation preventing portions is provided on the contact surface between the outer peripheral portion of the molded body and the holding portion of the holder, the molded body is held by the holder. When separating a state and a molded object from a holder, the direction of the rotation direction of a molded object can be controlled and it is easy to use each molded object.
[0066]
Furthermore, according to the composite molded product of claim 7, each of the molded body and the holder has a flat bottom surface, and the bottom surface of the molded body and the bottom surface of the holder constitute a continuous surface. When performing various post-treatments such as printing on the bottom surface of the molded body, it is possible to secure a flat surface wider than the bottom surface of each molded body, making it easy to perform post-processing such as printing on the entire bottom surface of the molded body, and molding The peripheral edge of the bottom surface of the body is not easily deformed by subsequent processing.
[0067]
And according to the manufacturing method of the composite molded product of Claim 8, the outer peripheral part of a some molded object is shape | molded by 1st resin, and 2nd resin incompatible with 1st resin in the circumference | surroundings Is formed in a molten state, and a holder for connecting a plurality of molded bodies in a state of being in close contact with the outer peripheral portion is formed. Therefore, the holder holding portion and the outer peripheral portion of the molded body are easily formed integrally with each other. In addition, even if it is molded integrally, the holder holding portion and the outer peripheral portion of the molded body are not firmly joined by fusion or the like, and the molded body can be separated with the holder. It is possible to produce a composite molded product that can be held.
[0068]
Further, according to the method for manufacturing a composite molded article according to claim 9, since the first resin of the molded body supplies the second resin in an unsolidified state at a temperature equal to or lower than the melting point, the flow of the first resin The outer periphery of the molded body suppresses plastic deformation when the second resin of the holder holding portion is supplied, and the shape of the outer periphery of the molded body can be easily maintained during the molding of the holder. And the holder holding portion are easily held securely by elasticity.
[0069]
Furthermore, according to the method for manufacturing a composite molded article according to claim 10, since the second resin is injection-molded into the mold while the plurality of molded bodies are inserted into the mold, the plurality of molded bodies are formed. It is easy to fix the holder integrally at a predetermined position.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a composite molded product according to a first embodiment of the present invention.
FIG. 2 is a view showing a part of the bottom surface of the same embodiment;
FIG. 3 is a diagram showing a part of the bottom surface of a modification of the embodiment;
FIG. 4 is a diagram showing a part of the bottom surface of another modification of the embodiment;
FIG. 5 is a cross-sectional view of a molding die for molding each molded body of the composite molded product according to the embodiment.
FIG. 6 is a cross-sectional view of a molding die for molding the holder of the composite molded product according to the embodiment.
FIG. 7 is a cross-sectional view of a composite molded product without a display unit according to the embodiment.
FIG. 8 is a view showing a cross section of the push button sheet structure according to the embodiment;
FIG. 9 is a cross-sectional view of a composite molded product according to a second embodiment of the present invention.
FIG. 10 is a view showing a bottom surface of a composite molded product according to a third embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Composite molded article 11 Display part 12 Molded body 13 Outer peripheral part 15 Holder 16 Holding part 25, 28 Mold

Claims

It is a composite molded product in which a plurality of molded bodies arranged at predetermined positions are integrally held so as to be able to be extracted to a holder ,
The holder includes a plurality of holding portions that hold the outer peripheral portions of the plurality of molded bodies in close contact with each other,
The plurality of holding portions are configured to hold the plurality of molded bodies so as to correspond to the predetermined positions and to be able to be extracted in one direction,
The outer peripheral portion of the molded body to which the holding portion is in close contact is made of a first resin,
The composite molded article, wherein the holding portion of the holder is made of a second resin that is incompatible with the first resin.

The composite molded article according to claim 1, wherein the holding portion is in close contact with the entire circumference in at least one cross-sectional direction of the outer peripheral portion of the molded body.

3. The composite according to claim 1, wherein a contact surface between the outer peripheral portion of the molded body and the holding portion of the holder is formed in a constant cross-sectional shape along an axial direction penetrating the holder. Molding.

The composite molded product according to claim 1, wherein a contact surface between the outer peripheral portion of the molded body and the holding portion of the holder has a taper that is inclined along an axial direction penetrating the holder.

The composite molded article according to any one of claims 1 to 4, wherein the holding portion of the holder has a cut extending in a radial direction from a close contact surface in close contact with an outer peripheral portion of the molded body.

6. The composite molding according to claim 1, further comprising at least one pair of rotation preventing portions on the contact surface between the outer peripheral portion of the molded body and the holding portion of the holder. Goods.

The said molded object and the said holder each have a planar bottom face, and the bottom face of the said molded object and the bottom face of the said holder comprise the surface which continues. Composite molded product.

A method for producing a composite molded article in which a plurality of molded bodies arranged at predetermined positions are integrally held so as to be extracted in a holder ,
Molding the outer periphery of the plurality of molded bodies with a first resin;
The second resin that is incompatible with the first resin is supplied in a molten state around the plurality of molded bodies, thereby closely contacting the outer periphery of the plurality of molded bodies molded with the first resin. In the state, the holder for connecting the plurality of molded bodies is formed so that the plurality of molded bodies are respectively held so as to correspond to the predetermined positions and can be extracted in one direction. A method for manufacturing a composite molded product.

The method for producing a composite molded product according to claim 8, wherein the second resin is supplied in an unsolidified state at a temperature equal to or lower than a melting point of the first resin of the molded body.

The method for producing a composite molded article according to claim 8 or 9, wherein the second resin is injection-molded into the mold while the plurality of molded bodies are inserted into the mold.