JP2000176961A - Method for injection-molding insert molded item - Google Patents
Method for injection-molding insert molded itemInfo
- Publication number
- JP2000176961A JP2000176961A JP10359442A JP35944298A JP2000176961A JP 2000176961 A JP2000176961 A JP 2000176961A JP 10359442 A JP10359442 A JP 10359442A JP 35944298 A JP35944298 A JP 35944298A JP 2000176961 A JP2000176961 A JP 2000176961A
- Authority
- JP
- Japan
- Prior art keywords
- insert
- outer frame
- synthetic resin
- resin material
- insert member
- 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
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、インサート部材
と一体化するインサート射出成形方法、詳しくは、板状
またはシート状のインサート部材を成形金型に形成され
たキャビティ内に定置し、この状態でキャビティに樹脂
を注入して成形品に成形するインサート成形品の射出成
形方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insert injection molding method for integrating with an insert member, and more specifically, a plate-like or sheet-like insert member is fixed in a cavity formed in a molding die, and in this state, The present invention relates to an injection molding method for an insert molded product in which a resin is injected into a cavity to form a molded product.
【０００２】[0002]
【従来の技術】従来、この種のインサート成形では、金
属部品等の異種の部品を強固に固着できる等の利点があ
り、電気機器用等の部品等の成形に多用されている。そ
して、小物の成型品、例えば、金属電極板などの板材を
備える樹脂製電気部品の成形には、図５に示す如くイン
サート部材ｂを成形金型に入れて、その外周縁に合成樹
脂を射出して外枠部分ａで覆うインサート成形の方法が
一般的である。2. Description of the Related Art Conventionally, this type of insert molding has an advantage that different kinds of parts such as metal parts can be firmly fixed, and is often used for molding parts for electric equipment and the like. In order to form a small molded product, for example, a resin electric component having a plate material such as a metal electrode plate, the insert member b is put into a molding die as shown in FIG. In general, an insert molding method of covering with an outer frame portion a is performed.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上述し
た従来の成形においては、成形金型に入れられたインサ
ート板材ｂは、予め成形されているためほとんど温度変
化がないのに対して射出された熱可塑性の合成樹脂は、
通常常温に戻る際に１／１０００乃至６／１０００ｍｍ
程度収縮するために外周縁の樹脂部分、即ち外枠部分ａ
のみが収縮しインサート板材ｂは外側から締め付けられ
て反りかえり波打ち等の変形を生じ商品不良品となる。
殊に、従来では図５（ａ）（ｂ）に示すように窓枠状の
四辺形の製品の外枠ａの内側に板またはシートのインサ
ート板材ｂを固定し保持させる場合に、成形時に外枠ａ
に外力が加わり変形が生じると、インサート板材ｂにも
変形、破損を生じることがあった。この外力がインサー
ト板材に及ぼす影響を少なくする目的で、インサート板
材の外周部を応力緩和目的での別の樹脂で被覆し、これ
を外枠ａとする方法が多く用いられているが、従来は図
５（ｃ）（ｄ）の如く、外枠ａを本体部分ａ１ と蓋部
ａ２ に分けてそれぞれ別に成形し、この本体部分ａ１
と蓋部ａ２ との間にインサート板材ｂを組み合わせ、
さらに別の成形金型を用いて成形していた。即ち、本体
部分ａ１ を第一成形金型で成形し、また蓋部ａ２ を
第二成形金型で予め成形し、これらのインサート板材ｂ
と併せ、第三成形金型に挿入し応力緩和目的の樹脂材を
射出充填し一体とするのが一般的方法で、つまり製品と
するのに３つの成形金型を用いて３回の成形工程を経る
必要があった。However, in the above-described conventional molding, the insert plate material "b" put in the molding die has almost no temperature change since it has been molded in advance, whereas the injected plate material "b" has almost no temperature change. Plastic synthetic resin,
When returning to normal temperature, 1/1000 to 6 / 1000mm
Resin portion on the outer peripheral edge, that is, outer frame portion a
Only the shrinkage causes the insert plate material b to be tightened from the outside, causing deformation such as warping and waving, resulting in a defective product.
In particular, conventionally, as shown in FIGS. 5 (a) and 5 (b), when an insert plate b of a plate or sheet is fixed and held inside an outer frame a of a quadrangular product having a window frame shape, it is necessary to remove it during molding. Frame a
When an external force is applied to the insert plate material to cause deformation, the insert plate material b may be deformed or damaged. In order to reduce the effect of this external force on the insert plate, a method of coating the outer peripheral portion of the insert plate with another resin for the purpose of stress relaxation and using this as an outer frame a is often used. as shown in FIG. 5 (c) (d), respectively separately formed separately outer frame a to the body portion a 1 and the cover a 2, the body portion a 1
Combining the insert plate material b between the lid portion a 2 and,
Furthermore, it was molded using another molding die. That is, by forming the body portion a 1 in the first molding die and preliminarily molded lid a 2 in the second molding die, the inserts sheet b
In addition, it is a general method to insert and insert a resin material for the purpose of stress relaxation into the third molding die and integrate them, that is, three molding steps using three molding dies to produce a product. Had to go through.
【０００４】この発明は、上記問題に鑑みなされたもの
で、インサート部材の変形や外周部材の損傷が生じるこ
とを防止でき、また、インサート成形品の外周部を応力
緩和することが容易であり、成形金型と成形工数を削減
して成形費用の軽減を可能とし、かつ効率的にインサー
ト成形品を製造できる射出成形方法を提供することを目
的とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and can prevent deformation of an insert member and damage to an outer peripheral member. In addition, it is easy to relieve stress on an outer peripheral portion of an insert molded product. An object of the present invention is to provide an injection molding method capable of reducing molding costs by reducing the number of molding dies and molding steps, and efficiently producing insert molded products.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するた
め、この発明にかかるインサート成形品の射出成形方法
は、合成樹脂材からなる板状或いはシート状のインサー
ト部材の周囲を合成樹脂材からなる外枠で覆って一体化
するインサート成形品の射出成形方法において、前記外
枠を本体部分と、インサート部材の上下両面から挟持す
る下部材と上部材とにヒンジ部を介した連結部での一体
成形で構成し、該上部材をヒンジ部で折り曲げ前記連結
部を除去して挿入部とし、該挿入部から前記インサート
部材を挿入し外枠と共に製品成形金型のキャビティ内に
入れ、前記インサート部材の外周部に合成樹脂材を射出
して前記外枠とインサート部材とを一体化した。In order to achieve the above object, an injection molding method for an insert molded product according to the present invention comprises a synthetic resin material surrounding a plate or sheet insert member made of a synthetic resin material. In an injection molding method of an insert molded product which is integrated by covering with an outer frame, the outer frame is integrated with a main body portion, and a lower member and an upper member sandwiched from both upper and lower surfaces of an insert member at a connecting portion via a hinge portion. The upper member is bent at a hinge portion to remove the connecting portion to form an insertion portion, the insert member is inserted from the insertion portion, and is inserted into a cavity of a product molding die together with an outer frame. The outer frame and the insert member were integrated with each other by injecting a synthetic resin material into the outer peripheral portion.
【０００６】また、この発明にかかるインサート射出成
形では、外枠が、塩ビ系樹脂等で略四辺形の枠状の本体
部分と、これに続く下部材と、該下部材の各内側辺にそ
れぞれヒンジ部を介して連結部で一体成形された上部材
とからなり、該上部材を折り曲げたのち、連結部からイ
ンサート部材の挿入部を除去し、該挿入部からインサー
ト部材を組み込んで製品成形金型のキャビティ内に入
れ、該キャビティ内にポリエチレン系エラストマ等の合
成樹脂材を射出して一体化した外枠に成形する。In the insert injection molding according to the present invention, the outer frame includes a substantially quadrangular frame-shaped main body made of a PVC resin or the like, a lower member following the main body, and inner sides of the lower member. An upper member integrally formed at the connecting portion via the hinge portion, and after bending the upper member, the insertion portion of the insert member is removed from the connecting portion, and the insert member is incorporated from the inserted portion to form a product forming metal. It is placed in a cavity of a mold, and a synthetic resin material such as a polyethylene elastomer is injected into the cavity to form an integrated outer frame.
【０００７】[0007]
【作用】この発明にあっては、製品形状のキャビティを
有する成形金型に、前記キャビティに入れられ、かつ前
記インサート部材を載せうる形状が備えられた外枠をあ
らかじめ成形し、即ち合成樹脂材からなる外枠で合成樹
脂材からなる板状或いはシート状のインサート部材の周
囲を覆って一体化するインサート成形品の射出成形方法
において、前記外枠を本体部分と、インサート部材の上
下両面から挟持する下部材と上部材とにヒンジ部を介し
た連結部での一体成形で構成し、該上部材をヒンジ部で
折り曲げ前記連結部を除去して挿入部とし、該挿入部か
ら前記インサート部材を挿入し、この外枠と共に前記イ
ンサート部材を製品成形金型のキャビティ内に入れたの
ち、該キャビティ内に合成樹脂材を射出して、外枠とし
てインサート部材に一体成形して製品とすることで、イ
ンサート部材に及ぼす影響を少なくし各部材での変形等
の発生を防止すると共に、さらに成形金型と成形工程を
削減して成形速度を上げて生産性を向上することができ
る。According to the present invention, an outer frame having a shape capable of being placed in the cavity and on which the insert member can be placed is previously formed in a molding die having a product-shaped cavity, ie, a synthetic resin material. In an injection molding method for an insert-molded product in which a plate-shaped or sheet-shaped insert member made of a synthetic resin material is integrated with an outer frame made of synthetic resin, the outer frame is sandwiched from both upper and lower surfaces of a main body portion and the insert member. The lower member and the upper member are integrally formed at a connection portion via a hinge portion, and the upper member is bent at the hinge portion to remove the connection portion to form an insertion portion, and the insert member is removed from the insertion portion. After inserting the insert member together with the outer frame into the cavity of the product molding die, a synthetic resin material is injected into the cavity to form the insert member as the outer frame. By integrally forming the product, the influence on the insert member is reduced, preventing deformation of each member, and furthermore, the molding speed and the molding speed are increased by reducing the number of molding dies and molding steps to increase productivity. Can be improved.
【０００８】[0008]
【実施の形態】以下、この発明の実施の形態を図面を参
照して説明する。図１及び図２はこの発明の一の実施の
形態にかかるインサート成形品およびその射出成形工程
を示し、合成樹脂材からなる板状或いはシート状のイン
サート部材１の周囲を合成樹脂材、例えば、ＡＢＳ，Ａ
Ｓ，ＰＣ，ＰＳ，ＰＰ，ＰＥ樹脂などからなる外枠２で
覆って一体化するインサート成形品の射出成形方法にお
いて、前記外枠２を本体部分２１ と、インサート部材
１の上下両面から挟持する下部材２２ と上部材２３
とにヒンジ部１１を介した連結部１２での一体成形で構
成し、該上部材２３ をヒンジ部１１で折り曲げ組み付
けて前記連結部１２を除去して挿入部１３とし、該挿入
部１３から前記インサート部材１を挿入し外枠２と共に
製品成形金型１４ＡＳ，ＰＣのキャビティ１５内に入
れ、前記インサート部材１の外周部に合成樹脂材３、例
えば、ＡＢＳ，ＡＳ，ＰＣ，ＰＳ，ＰＰ，ＰＥ等の熱可
塑性プラスチックスやＥＰＤＭ（エラストマ）、ポリウ
レタンエラストマ等の熱可塑性エラストマや熱硬化性エ
ラストマ等の合成樹脂材３を射出して前記外枠２とイン
サート部材とを一体化して製品とする。Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 and 2 show an insert molded product and an injection molding process thereof according to an embodiment of the present invention, in which a plate-shaped or sheet-shaped insert member 1 made of a synthetic resin material is surrounded by a synthetic resin material, for example, ABS, A
S, PC, PS, PP, in an injection molding method of insert molding to integrally covered with an outer frame 2 made of PE resin, the outer frame 2 and the body portion 2 1, sandwiched from the upper and lower surfaces of the insert member 1 lower member 2 2 and the upper member 2 3
DOO in constituted by integral molding of a connecting portion 12 via the hinge portion 11, the upper member 2 3 and the insertion portion 13 and removing the connecting portion 12 are assembled bent at the hinge portion 11, the insertion portion 13 The insert member 1 is inserted and put together with the outer frame 2 into the cavity 15 of the product forming mold 14AS, PC, and a synthetic resin material 3, for example, ABS, AS, PC, PS, PP, The outer frame 2 and the insert member are integrated into a product by injecting a synthetic resin material 3 such as a thermoplastic elastomer such as PE, a thermoplastic elastomer such as EPDM (elastomer), or a polyurethane elastomer, or a thermosetting elastomer. .
【０００９】この場合、前記外枠２の成形金型には本体
部分２１ とこれに続く下部材２２ と上部材２３ とを
ヒンジ部１１を介して連結部１２で一体接続して構成す
る。（図３ａ） 即ち、外枠２の本体部分２１ の内周側を延長して、下
部材２２ とし、さらに延長部分の２カ所に折り曲げ可
能な薄肉部からなるヒンジ部１１を設けて連結部１２と
上部材２３ を成形し、延長後の内側先端部分の上部材
２３ を折り曲げ（図３ｂ，図３ｃ）組み付けたのち
に、連結部１２を除去してインサート部材１の挿入部１
３を形成する。（図３ｄ） ここにインサート板１を加え、成形金型１４のキャビテ
ィ１５内に挿入し、前記上下部材２２ ，２３ 及び本
体部分２１ とインサート部材１との隙間に合成樹脂材
３を射出して製品とする。（図３ｅ）In this case, the molding die of the outer frame 2 is provided with a main body.
Part 21And the lower member 2 following this2 And upper member 23And
It is configured by being integrally connected by a connecting portion 12 via a hinge portion 11.
You. (FIG. 3a) That is, the main body part 2 of the outer frame 21Extend the inner circumference of
Member 22And can be folded in two places on the extension
A hinge portion 11 made of a functional thin portion is provided to
Upper member 23The upper member of the inner tip after extension
23After assembling (Fig. 3b, Fig. 3c)
Then, the connecting portion 12 is removed and the insertion portion 1 of the insert member 1 is removed.
Form 3 (FIG. 3d) The insert plate 1 is added thereto, and the cavity of the molding die 14 is formed.
The upper and lower members 22, 23And book
Body part 21Synthetic resin material in the gap between
Inject 3 to make a product. (FIG. 3e)
【００１０】なお、前記外枠２がＡＢＳ樹脂などで構成
されるが、略四辺形の枠状の本体部分２１ と、これに
続く下部材２２ と、該下部材２２ の各内側辺にそれ
ぞれヒンジ部１１を介して連結部１２で一体成形された
上部材２３ とからなり、該上部材２３ を折り曲げた
のち、先端部を係合溝１６に組み付けるのがよく（図２
ｄ，図３ｃ）、またこの外枠２にインサート部材１を挿
入して成形用金型１４のキャビティ１５内に入れ、該キ
ャビティ１５内にポリエチレン系或いはポリウレタン系
エラストマの合成樹脂材３を射出して一体化した外枠２
に成形すると、二次成形部分の収縮力は一次成形品の外
枠２に十分支えられ、インサート部材１は変形しない
し、キャビティ内に充填する材料にエラストマを用いる
と、インサート部材１が薄い板或いはシートの場合でも
平面性が良好に保たれ有効である。なお、インサート部
材１が薄いシートの場合、製品成形金型１４でのインサ
ート部材１の表面が、外枠２の表面と同一面にある場合
は、さらにインサート部材１への影響は少ない。また、
前記合成樹脂材３の射出には下部材２２ 或いは上部材
２３ に必要に応じ形成した注入孔（図示せず）から行
うが、端面開口部がある場合にはここから行うことがで
きる。[0010] Incidentally, the outer frame 2 is composed of such as ABS resin, a frame-like body portion 2 1 of the substantially quadrilateral, a lower member 2 2 following this, each inner side of the lower member 2 2 to consist integrally molded upper member 2 3 which by a linking member 12 via a hinge portion 11, respectively, after bending the upper member 2 3, good assemble the tip engaging groove 16 (FIG. 2
d, FIG. 3c), the insert member 1 is inserted into the outer frame 2 and put into the cavity 15 of the molding die 14, and the synthetic resin material 3 of polyethylene or polyurethane elastomer is injected into the cavity 15. And integrated outer frame 2
When the molding is performed, the contraction force of the secondary molding is sufficiently supported by the outer frame 2 of the primary molding, and the insert member 1 does not deform. When the elastomer is used as the material to be filled in the cavity, the insert member 1 becomes thinner. Alternatively, even in the case of a sheet, good flatness is maintained and is effective. In addition, when the insert member 1 is a thin sheet, when the surface of the insert member 1 in the product forming die 14 is flush with the surface of the outer frame 2, the influence on the insert member 1 is further reduced. Also,
The synthesis to the injection of the resin material 3 is performed from the injection holes formed as required on the lower member 2 2 or the upper member 2 3 (not shown), if there is an end face opening can be carried out here.
【００１１】図４の実施例では、前記外枠２として本体
部分２１ の両側にヒンジ部１１を介して上部材２３
と下部材２２ とを折曲自在に一体接続したものであっ
て、該本体部分２１ を連結部として活用して外枠２の
外側部とし、上部材２３ と下部材２２ の先端縁で前
記インサート部材１を挟持し、該上部材２３ と下部材
２２ との間でインサート部材１の周囲に合成樹脂材３
を射出することにより、インサート部材１の表裏を外枠
２が囲み、気密性を目的とする場合に特に好ましい結果
を得る製品とすることができる。[0011] In the embodiment of FIG. 4, the upper member 2 3 via the hinge portion 11 on opposite sides of the body portion 2 1 as the outer frame 2
Tip and the lower member 2 2 bent freely be one which is integrally connected to an outer portion of the outer frame 2 by utilizing the body portion 2 1 a connecting portion, of the upper member 2 3 and the lower member 2 2 said insert member 1 is clamped by the edge, the upper member 2 3 and the lower member 2 2 synthetic resin 3 around the insert member 1 with the
By injecting, the outer frame 2 surrounds the front and back of the insert member 1, and it is possible to obtain a product that obtains particularly favorable results when the purpose is airtightness.
【００１２】前記成形品は、外枠２での上部材２３ に
必要に応じ部分的に切れ目１７を設けて、折り曲げ易く
して角形或いは円形、楕円形など各種形状の外枠２にな
るように配慮してあり、この外枠２をインサート部材１
と共に製品形状のキャビティを有する成形金型に入れ、
この成形金型のキャビティ内に合成樹脂材３を射出して
インサート部材と一体となった外枠２を完成させる。こ
の場合、製品化成形の際には、外枠２はすでに成形、収
縮が済んだ常温の製品を用いてあるので、射出成形後に
収縮力が生じるのは外枠内の一部分だけであるので、こ
の二次成形部分の断面積は大きな外枠成形部分に押さえ
られ、インサート部材１の板体の収縮は極めて小さくな
り、板体の変形も少なくすむ。[0012] The molded article partially cut 17 as required to the upper member 2 3 in the outer frame 2 is provided, apt to square or circular bending, so that the outer frame 2 of various shapes such as oval The outer frame 2 is inserted into the insert member 1
Together with the mold having a product-shaped cavity,
The synthetic resin material 3 is injected into the cavity of the molding die to complete the outer frame 2 integrated with the insert member. In this case, at the time of commercialization molding, since the outer frame 2 is already formed and shrunk at room temperature, a shrinkage force is generated only after a part of the outer frame after injection molding. The cross-sectional area of the secondary molded portion is suppressed by the large outer frame molded portion, and the contraction of the plate of the insert member 1 becomes extremely small, and the deformation of the plate is reduced.
【００１３】[0013]
【発明の効果】以上説明したように、この発明によれ
ば、インサート成形品にあってインサート部材の外周縁
を覆う外枠を本体部分と、インサート部材の上下両面か
ら挟持する下部材と上部材とにヒンジ部を介した連結部
での一体成形で構成し、該上部材をヒンジ部で折り曲げ
前記連結部を除去して前記インサート部材を挿入し、外
枠と共に製品成形金型のキャビティ内に入れ、前記イン
サート部材の外周部に合成樹脂材を射出して前記外枠と
インサート部材とを一体化したことにより、インサート
部材の変形や外周部材の外枠の損傷を生じることを防止
でき、また、成形品の外周部を応力緩和することが容易
であり、成形金型費用と成形工数とを削減でき、生産作
業性も簡便化して安価かつ効率的にインサート成形品を
製造できる。As described above, according to the present invention, the outer frame for covering the outer peripheral edge of the insert member in the insert molded product is formed by the main body, the lower member and the upper member which hold the outer frame from both the upper and lower surfaces of the insert member. The upper member is bent at the hinge portion, the connection portion is removed, the insert member is inserted, and the insert member is inserted together with the outer frame into the cavity of the product molding die. By inserting the synthetic resin material into the outer peripheral portion of the insert member and integrating the outer frame and the insert member, deformation of the insert member and damage to the outer frame of the outer peripheral member can be prevented, and In addition, it is easy to relieve the stress on the outer peripheral portion of the molded product, the cost of the molding die and the molding man-hour can be reduced, the productivity can be simplified, and the insert molded product can be manufactured inexpensively and efficiently.
【図１】この発明の第１の実施例にかかるインサート成
形品を示し、（ａ）はその平面図、（ｂ）はＡ−Ａ線に
おける拡大縦断面図である。1A and 1B show an insert molded product according to a first embodiment of the present invention, wherein FIG. 1A is a plan view thereof, and FIG. 1B is an enlarged vertical sectional view taken along line AA.
【図２】この発明の第２の実施例にかかるインサート成
形品を示し、（ａ）はその平面図、（ｂ）は一部を拡大
平面図、（ｃ）はＢ−Ｂ線における拡大縦断面図、
（ｄ）は組込状態の平面図である。FIGS. 2A and 2B show an insert molded product according to a second embodiment of the present invention, in which FIG. 2A is a plan view, FIG. 2B is an enlarged plan view, and FIG. Area view,
(D) is a plan view of the assembled state.
【図３】図２の例の実施例にかかるインサート成形品の
製造工程の概要を（ａ）〜（ｅ）のアファベット順に示
す模式断面図である。FIG. 3 is a schematic cross-sectional view showing an outline of a manufacturing process of an insert molded product according to the example of FIG. 2 in the order of (a) to (e).
【図４】この発明の第２実施例にかかるインサート成形
品の製造工程の概要を（ａ）〜（ｅ）のアルファベット
順に示す模式断面図である。FIG. 4 is a schematic cross-sectional view showing an outline of a manufacturing process of an insert molded product according to a second embodiment of the present invention in the alphabetical order of (a) to (e).
【図５】従来例のインサート成形品を示し、（ａ）はそ
の平面図、（ｂ）はＣ−Ｃ線における拡大縦断面図、
（ｃ）は製造工程の一概要模式断面図、（ｄ）はその分
離状態の模式断面図である。5A and 5B show a conventional example of an insert molded product, wherein FIG. 5A is a plan view thereof, FIG. 5B is an enlarged vertical sectional view taken along line CC,
(C) is a schematic cross-sectional view of one outline of the manufacturing process, and (d) is a schematic cross-sectional view of the separated state.
１ インサート部材 ２ 外枠 ２１ 本体部分 ２２ 下部材 ２３ 上部材 ３ 合成樹脂材 １１ ヒンジ １２ 連結部 １３ 挿入部 １４ 製品成形用金型 １５ キャビティ １６ 係合溝DESCRIPTION OF SYMBOLS 1 Insert member 2 Outer frame 2 1 Main body part 2 2 Lower member 2 3 Upper member 3 Synthetic resin material 11 Hinge 12 Connecting part 13 Insertion part 14 Product molding die 15 Cavity 16 Engagement groove
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 4F206 AA09 AA11 AA13 AA28 AA45 AD05 AD08 AG03 AH33 AM32 JA07 JB12 JB23 JF05 JL02 JM02 JN25 JN32 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4F206 AA09 AA11 AA13 AA28 AA45 AD05 AD08 AG03 AH33 AM32 JA07 JB12 JB23 JF05 JL02 JM02 JN25 JN32
Claims (3)
のインサート部材の周囲を合成樹脂材からなる外枠で覆
って一体化するインサート成形品の射出成形方法におい
て、前記外枠を本体部分と、インサート部材の上下両面
から挟持する下部材と上部材とにヒンジ部を介した連結
部での一体成形で構成し、該上部材をヒンジ部で折り曲
げ前記連結部を除去して挿入部とし、該挿入部から前記
インサート部材を挿入し外枠と共に製品成形金型のキャ
ビティ内に入れ、前記インサート部材の外周部に合成樹
脂材を射出して前記外枠とインサート部材とを一体化し
たことを特徴とするインサート成形品の射出成形方法。1. An injection molding method for an insert-molded product in which the periphery of a plate-shaped or sheet-shaped insert member made of a synthetic resin material is covered with an outer frame made of a synthetic resin material and integrated therewith. The lower member and the upper member sandwiched from both the upper and lower surfaces of the insert member are integrally formed at a connection portion via a hinge portion, and the upper member is bent at the hinge portion to remove the connection portion to form an insertion portion, Inserting the insert member from the insertion portion, placing it in the cavity of the product molding die together with the outer frame, and injecting a synthetic resin material into the outer peripheral portion of the insert member to integrate the outer frame and the insert member. Characteristic injection molding method for insert molded products.
弾性係数より小さく、該外枠で囲まれるインサート部材
を含む中空部に射出成形されて外枠とインサート部材と
を一体化したことを特徴とする請求項１記載のインサー
ト成形品の射出成形方法。2. The synthetic resin material is smaller than the elastic modulus of the synthetic resin material of the outer frame, and is injection molded into a hollow portion including the insert member surrounded by the outer frame to integrate the outer frame and the insert member. The method of injection molding an insert molded product according to claim 1, wherein:
のインサート部材の周囲を合成樹脂材からなる外枠で覆
って一体化するインサート成形品の射出成形方法におい
て、前記外枠が本体部分の両側にヒンジ部を介して上部
材と下部材とを折曲自在に一体接続したものであって、
該連結部を外枠の外側部とし上部材と下部材の先端縁で
前記インサート部材を挟持し、該上部材と下部材との間
でインサート部材の周囲に合成樹脂材を射出して外枠に
成形されることを特徴とするインサート成形品の射出成
形方法。3. An injection molding method for an insert-molded article in which a plate-shaped or sheet-shaped insert member made of a synthetic resin material is covered with an outer frame made of a synthetic resin material and integrated, wherein the outer frame is formed of a main body part. An upper member and a lower member are integrally connected to both sides via a hinge part so as to be freely bent,
The outer frame is formed by injecting a synthetic resin material around the insert member between the upper member and the lower member, with the connecting portion being the outer portion of the outer frame, sandwiching the insert member between the leading edges of the upper member and the lower member. An injection molding method for an insert molded product, characterized in that the injection molding is performed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10359442A JP2000176961A (en) | 1998-12-17 | 1998-12-17 | Method for injection-molding insert molded item |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10359442A JP2000176961A (en) | 1998-12-17 | 1998-12-17 | Method for injection-molding insert molded item |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000176961A true JP2000176961A (en) | 2000-06-27 |
Family
ID=18464526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10359442A Pending JP2000176961A (en) | 1998-12-17 | 1998-12-17 | Method for injection-molding insert molded item |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000176961A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002307477A (en) * | 2001-04-11 | 2002-10-23 | Mitsubishi Materials Corp | Method for producing injection-molded article having thin-wall part |
| JP2006220820A (en) * | 2005-02-09 | 2006-08-24 | Mitsubishi Engineering Plastics Corp | Light-reflective formed article and its manufacturing method |
| JP2015091298A (en) * | 2013-08-21 | 2015-05-14 | 榮和麗科技（深▲せん▼）有限公司 | Method of manufacturing snowboard and ski, and snowboard and ski |
-
1998
- 1998-12-17 JP JP10359442A patent/JP2000176961A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002307477A (en) * | 2001-04-11 | 2002-10-23 | Mitsubishi Materials Corp | Method for producing injection-molded article having thin-wall part |
| JP2006220820A (en) * | 2005-02-09 | 2006-08-24 | Mitsubishi Engineering Plastics Corp | Light-reflective formed article and its manufacturing method |
| JP4693431B2 (en) * | 2005-02-09 | 2011-06-01 | 三菱エンジニアリングプラスチックス株式会社 | Light-reflective molded article and manufacturing method thereof |
| JP2015091298A (en) * | 2013-08-21 | 2015-05-14 | 榮和麗科技（深▲せん▼）有限公司 | Method of manufacturing snowboard and ski, and snowboard and ski |
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