JPH0558377B2 - - Google Patents
Info
- Publication number
- JPH0558377B2 JPH0558377B2 JP62272811A JP27281187A JPH0558377B2 JP H0558377 B2 JPH0558377 B2 JP H0558377B2 JP 62272811 A JP62272811 A JP 62272811A JP 27281187 A JP27281187 A JP 27281187A JP H0558377 B2 JPH0558377 B2 JP H0558377B2
- Authority
- JP
- Japan
- Prior art keywords
- movable
- mold
- plate
- fixed mold
- injection
- 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.)
- Expired - Lifetime
Links
- 238000002347 injection Methods 0.000 claims description 55
- 239000007924 injection Substances 0.000 claims description 55
- 238000001746 injection moulding Methods 0.000 claims description 17
- 229920003002 synthetic resin Polymers 0.000 description 17
- 239000000057 synthetic resin Substances 0.000 description 17
- 238000000465 moulding Methods 0.000 description 13
- 238000010438 heat treatment Methods 0.000 description 6
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1675—Making multilayered or multicoloured articles using exchangeable mould halves
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は、同一或いは異なる種類の合成樹脂
からなる成型品を多重成形する多重射出成形装置
に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a multiple injection molding apparatus for multiple molding molded products made of the same or different types of synthetic resins.
［従来技術］
従来の多重射出成形装置としては、例えば射出
成型機の両側に第１及び第２射出装置を対向する
ように配置するとともにこれら第１及び第２射出
装置間にキヤビイテイが形成された固定金型を前
記第１及び第２射出装置と選択的に対向するよう
に反転可能に設け、例えば、第１射出装置側に設
けられた第１可動金型及び前記固定金型内に第１
射出装置により合成樹脂を射出して第１成型品を
成形した後、第１成型品が保持されたままの状態
で固定金型を反転させて前記第２射出装置に対向
させ、次に前記第２射出装置の第２可動金型及び
固定金型内に第２射出装置により合成樹脂を射出
して第１成型品に第２成型品を一体成形してい
る。[Prior Art] As a conventional multiplex injection molding device, for example, first and second injection devices are arranged to face each other on both sides of an injection molding machine, and a cavity is formed between these first and second injection devices. A fixed mold is reversibly provided so as to selectively face the first and second injection devices, for example, a first movable mold provided on the first injection device side and a first movable mold in the fixed mold.
After injecting synthetic resin using an injection device to form a first molded product, the fixed mold is turned over while holding the first molded product to face the second injection device, and then The second molded product is integrally molded with the first molded product by injecting the synthetic resin into a second movable mold and a fixed mold of the second injection device.
［発明が解決しようとする問題点］
然し乍、上記したように固定金型の反転により
第１或いは第２可動金型に対向させて多重成型す
る装置にあつては、高い型締力にて固定金型と第
１或いは第２可動金型とを型締めすることが困難
であり、大型の成型品を成形出来なかつた。この
欠点は、射出成形機のフレーム及び固定金型が取
付けられる取付部を強固にすることにより解決し
得るが、射出成形機が大型化、重量化及び高コス
ト化している。[Problems to be Solved by the Invention] However, as described above, in the case of an apparatus that performs multiple molding by inverting a fixed mold so that it faces the first or second movable mold, it is necessary to use a high mold clamping force. It was difficult to clamp the fixed mold and the first or second movable mold, making it impossible to mold a large molded product. This drawback can be solved by strengthening the frame of the injection molding machine and the mounting portion to which the stationary mold is attached, but this increases the size, weight, and cost of the injection molding machine.
［発明の目的］
本発明の目的は、上記した従来の欠点に鑑み、
装置の軽量化、小型化及び低コスト化を図りなが
ら高い型締力にて可動金型及び固定金型とを型締
めして複数の成型品を一体に多重成形することが
可能な多重射出成形装置を提供することにある。[Object of the invention] In view of the above-mentioned conventional drawbacks, the object of the present invention is to
Multiple injection molding allows multiple molding of multiple molded products by clamping the movable mold and fixed mold with high mold clamping force while reducing the weight, size, and cost of the equipment. The goal is to provide equipment.
［問題点を解決するための手段］
このため本発明は、固定側型板の機械中心に取
り付けられる単一の固定金型と、固定側型板に向
かつて移動可能に支持される可動側型板と、該可
動側型板を固定側型板側へ移動する型締め部材
と、該固定側型板に対向する可動側型板に取り付
けられる支持部材と、該支持部材に対して上下方
向へ移動可能に支持される可動板と、該可動板に
対して上下方向へ所定の間隔をおいて取り付けら
れる少なくとも２個の可動金型と、可動板を移動
して各可動金型を可動側型板の機械中心とほぼ一
致する夫々の射出位置に選択的に位置させる上下
駆動部材と、夫々の射出位置に配置された第１及
び第２射出装置とからなることを特徴としてい
る。[Means for Solving the Problems] Therefore, the present invention includes a single fixed mold that is attached to the machine center of the fixed mold plate, and a movable mold that is movably supported toward the fixed mold plate. a plate, a mold clamping member that moves the movable mold plate toward the fixed mold plate, a support member attached to the movable mold plate opposite to the fixed mold plate, and a mold clamping member that moves the movable mold plate toward the fixed mold plate; A movable plate that is movably supported, at least two movable molds that are attached to the movable plate at a predetermined interval in the vertical direction, and a movable side mold that moves each movable mold by moving the movable plate. It is characterized by comprising a vertical drive member selectively positioned at respective injection positions substantially coinciding with the mechanical center of the plate, and first and second injection devices disposed at respective injection positions.
［発明の作用］
本発明は上記のように構成されるため、例えば
上下駆動部材の非駆動時に下方位置に位置する可
動板の上方に取り付けられた一方の可動金型が可
動側型板の機械中心とほぼ一致されている。この
状態にて型締め部材が駆動されると、該可動金型
と固定金型とがほぼ機械中心にて型締めされる、
該状態にて第１射出装置から上記可動金型と固定
金型の射出空間内に合成樹脂を射出することによ
り第１成型品が成形される。[Function of the Invention] Since the present invention is configured as described above, for example, when the vertical drive member is not driven, one movable mold attached above the movable plate located at the lower position is connected to the machine of the movable side mold plate. It is almost aligned with the center. When the mold clamping member is driven in this state, the movable mold and the fixed mold are clamped approximately at the center of the machine.
In this state, a first molded product is molded by injecting synthetic resin from the first injection device into the injection space of the movable mold and the fixed mold.
次に、型締め部材の復動により第１成型品を保
持した固定金型から上記可動金型を離間した後、
駆動する上下駆動部材により可動板を上方位置へ
移動させると、該可動板の下方に取り付けられた
他方の可動金型が可動側型板の機械中心に位置さ
れる。そして該状態にて駆動される型締め部材に
より可動側型板が移動されると、他方の可動金型
は第１成型品を保持した固定金型に型締めされた
後、第２射出装置から他方の可動金型と固定金型
との成形空間に合成樹脂が射出されると、第１成
型品に第２成型品位が一体に射出成形される。 Next, after separating the movable mold from the fixed mold holding the first molded product by the return movement of the mold clamping member,
When the movable plate is moved to the upper position by the vertical drive member, the other movable mold attached below the movable plate is positioned at the mechanical center of the movable mold plate. When the movable mold plate is moved by the mold clamping member driven in this state, the other movable mold is clamped to the fixed mold holding the first molded product, and then released from the second injection device. When the synthetic resin is injected into the molding space between the other movable mold and the fixed mold, the second molding quality is integrally injection molded into the first molded product.
［実施例］
以下、本発明の一実施例を図面に従つて説明す
る。[Example] An example of the present invention will be described below with reference to the drawings.
第１図は本発明に係る多重射出成形装置を示す
略体斜視図、第２図は第１図の平面図、第３図は
支持部材に対する第１及び第２可動金型の取付状
態を示す正面図であり、射出成形機１のフレーム
３には固定側側板５と可動側側板７とが所要の間
隔をおいて対向するように設けられ、これら固定
側側板５及び可動側側板７には軸線相互が平行な
複数のガイド軸９が連結されている。 Fig. 1 is a schematic perspective view showing a multiplex injection molding apparatus according to the present invention, Fig. 2 is a plan view of Fig. 1, and Fig. 3 shows a state in which the first and second movable molds are attached to a support member. It is a front view, and the frame 3 of the injection molding machine 1 is provided with a fixed side plate 5 and a movable side plate 7 facing each other with a required interval, and these fixed side side plate 5 and movable side plate 7 are provided with A plurality of guide shafts 9 whose axes are parallel to each other are connected.
固定側側板５の側面には固定側型板１１が取付
けられ、該固定側型板１１の機械中心にはキヤビ
イテイが形成された固定金型１３が着脱可能に取
付けられている。また、前記固定側側板５の外方
に応じたフレーム３には第１射出装置１５が軸線
方向へ移動可能に設けられ、該第１射出装置１５
は投入された樹脂ペレツトを加熱溶融する加熱シ
リンダ１５ａと、前記ガイド軸９と平行な軸線を
有し、加熱シリンダ１５ａ内にて回転可能に支持
されて前記加熱シリンダ１５ａ内にて溶融した合
成樹脂を混練しながら所要の射出圧に付勢する射
出スクリユー（図示せず）とから構成されてい
る。そして該第１射出装置１５はその射出ノズル
が前記固定金型１３に形成されたスプルに当接し
て比較的硬度が高い、例えばABS樹脂、ポリス
チレン樹脂等の合成樹脂が後述する第１可動金型
２５と固定金型１３内に射出される。 A fixed mold plate 11 is attached to the side surface of the fixed side plate 5, and a fixed mold 13 in which a cavity is formed is removably attached to the machine center of the fixed side template 11. Further, a first injection device 15 is provided on the frame 3 corresponding to the outside of the fixed side plate 5 so as to be movable in the axial direction, and the first injection device 15
has a heating cylinder 15a for heating and melting the charged resin pellets, and a synthetic resin having an axis parallel to the guide shaft 9, rotatably supported within the heating cylinder 15a, and melted within the heating cylinder 15a. The injection screw (not shown) applies pressure to the required injection pressure while kneading the mixture. The first injection device 15 has its injection nozzle in contact with a sprue formed in the fixed mold 13, and molds a first movable mold made of a relatively hard synthetic resin such as ABS resin or polystyrene resin, which will be described later. 25 and is injected into the fixed mold 13.
前記ガイド軸９には可動側型板１７が軸線方向
へ摺動可能に支持され、該可動側型板のほぼ機械
中心には前記可動側側板７に取付けられた型締装
置としての油圧シリンダ１９が連結されている。
前記可動側型板１７には対向する内側面に上下方
向へ延びるレール２１ａが形成された支持部材を
構成する支持板２１が取付けられ、該支持板２１
には可動板としてのスライド板２３が上下方向へ
移動可能に支持されている。 A movable mold plate 17 is supported on the guide shaft 9 so as to be slidable in the axial direction, and a hydraulic cylinder 19 as a mold clamping device attached to the movable side plate 7 is installed approximately at the center of the movable mold plate. are connected.
A support plate 21 constituting a support member is attached to the movable side mold plate 17 and has a rail 21a extending in the vertical direction formed on the opposing inner side surface, and the support plate 21
A slide plate 23 as a movable plate is supported so as to be movable in the vertical direction.
前記固定金型１３に対向するスライド板２３の
側面には第１及び第２可動金型２５，２７が上下
方向へ所要の間隔をおいて取付けられている。そ
して前記スライド板２３には前記支持板２１に取
付けられた上下駆動部材としての油圧シリンダ２
９が連結され、油圧シリンダ２０の作動に伴つて
前記スライド板２３が、前記第１可動金型２５と
固定金型１３とが対向するほぼ機械中心の下方位
置と、前記第２可動金型２７と固定金型１３とが
対向するほぼ機械中心の上方位置との間にて移動
される。そしてこれら第１及び第２可動金型２
５，２７は前記固定金型１３に対し、前記油圧シ
リンダ１９の作動に伴つて所要の型締力にて型締
めされる。 First and second movable molds 25 and 27 are attached to the side surface of the slide plate 23 facing the fixed mold 13 at a required interval in the vertical direction. The slide plate 23 is equipped with a hydraulic cylinder 2 as a vertical drive member attached to the support plate 21.
9 are connected, and with the operation of the hydraulic cylinder 20, the slide plate 23 is moved to a position below the center of the machine, where the first movable mold 25 and the fixed mold 13 face each other, and to a position below the center of the machine, where the first movable mold 25 and the fixed mold 13 face each other, and the second movable mold 27 and a position substantially above the center of the machine where the fixed mold 13 faces. And these first and second movable molds 2
5 and 27 are clamped to the fixed mold 13 with a required clamping force as the hydraulic cylinder 19 operates.
前記固定金型１３に応じたフレーム３側方には
前記第１射出装置１５の射出スクリユーと直交す
る方向に軸線を有する射出スクリユー（図示せ
ず）が内蔵された第２射出装置３１が内蔵された
射出スクリユーの軸線方向へ移動可能に設けられ
ている。この第２射出装置３１は投入された樹脂
ペレツトを加熱溶融する加熱シリンダ３１ａと、
前記加熱シリンダ３１ａ内にて回転可能に支持さ
れ、溶融した合成樹脂を混練しながら所要の射出
圧に付勢する射出スクリユーとから構成されてい
る。そして、該第２射出装置３１はその射出ノズ
ルを型締された固定金型１３と第２可動金型２７
とのパーテイング面に設けられたスプルに当接
し、例えば比較的柔い、例えば塩化ビニル樹脂、
ポリエチレン樹脂、ポリプロピレン樹脂等の合成
樹脂が固定金型１３及び第２可動金型２７内に射
出される。 A second injection device 31 having a built-in injection screw (not shown) having an axis perpendicular to the injection screw of the first injection device 15 is built into the side of the frame 3 corresponding to the fixed mold 13. The injection screw is provided so as to be movable in the axial direction of the injection screw. This second injection device 31 includes a heating cylinder 31a that heats and melts the resin pellets that have been introduced;
The injection screw is rotatably supported within the heating cylinder 31a, and is configured to apply pressure to a required injection pressure while kneading the molten synthetic resin. The second injection device 31 connects the injection nozzle to the clamped fixed mold 13 and the second movable mold 27.
A relatively soft material such as vinyl chloride resin, etc.
A synthetic resin such as polyethylene resin or polypropylene resin is injected into the fixed mold 13 and the second movable mold 27.
次に、上記のように構成された多重射出成形装
置の作用を第４図乃至第６図に従つて説明する。 Next, the operation of the multiple injection molding apparatus constructed as described above will be explained with reference to FIGS. 4 to 6.
第１図射出成形状態を示す第４図において、油
圧シリンダ２９の作動によりスライド板２３が下
方位置へ移動されると、該スライド板２３に取付
けられた第１可動金型２５が固定金型１３に対向
する機械中心の射出位置に位置される。上記状態
にて油圧シリンダ１９が作動されると、固定金型
１３と第１可動金型２５とが所要の型締力にて型
締めされた後、これら固定金型１３及び第１可動
金型２５内に対して第１射出装置１５により比較
的高い硬度の合成樹脂が射出されて第１成型品４
１が成形される。このとき、固定金型１３と第１
可動金型２５とがほぼ機械中心に位置しているた
め、固定金型１３に対して第１可動金型２５をほ
ぼ均一に型締めして成形不良を防止することがで
きる。 In FIG. 4, which shows the state of injection molding in FIG. The injection position is located in the center of the machine opposite the machine. When the hydraulic cylinder 19 is operated in the above state, the fixed mold 13 and the first movable mold 25 are clamped with the required mold clamping force, and then the fixed mold 13 and the first movable mold A relatively high hardness synthetic resin is injected into the interior of the molded product 4 by the first injection device 15.
1 is molded. At this time, the fixed mold 13 and the first
Since the movable mold 25 is located approximately at the center of the machine, the first movable mold 25 can be clamped almost uniformly against the fixed mold 13 to prevent molding defects.
第２射出成形工程を示す第５図及び成型品の概
略を示す第６図において、第１成型品４１の成形
後に油圧シリンダ１９が復動されると、固定金型
１３と第１可動金型２５とが型開きされる。この
とき、固定金型１３のキヤビテイ内にて第１成型
品４１が保持されている。上記型開き状態にて油
圧シリンダ２９の復動によりスライド板２３が上
方位置へ移動されると、第２可動金型２７が固定
金型１３と対向する機械中心の射出位置に位置さ
れる。そして上記状態にて油圧シリンダ１９が作
動されると、キヤビイテイ内に第１成型品４１が
保持された固定金型１３に対して第２可動金型２
７が所要の型締力にて型締めされる。また、固定
金型１３に対する第２可動金型２７が型締めされ
たのちに第２射出装置３１の射出ノズルが型締め
された固定金型１３及び第２可動金型２７のパー
テイング面に形成されたスプルに当接されると、
これら固定金型１３及び第２可動金型２７内に比
較的柔い合成樹脂が射出されて第２成型品４３が
成形される。このとき、固定金型１３と第２可動
金型２７とがほぼ機械中心で型締めされるため、
固定金型１３に対する第２可動金型２７の型締め
力をほぼ均一にして成形不良を防止することがで
きる。また、第２成型品４３は固定金型１３のキ
ヤビイテイ内に保持された第１成型品４１に対
し、射出された合成樹脂が有する融着力により第
２成型品４３が一体化され、異なる合成樹脂から
なる成型品４５が一体成形される。 In FIG. 5 showing the second injection molding process and FIG. 6 showing the outline of the molded product, when the hydraulic cylinder 19 is moved back after molding the first molded product 41, the fixed mold 13 and the first movable mold 25 is opened from the mold. At this time, the first molded product 41 is held within the cavity of the fixed mold 13. When the slide plate 23 is moved upward by the backward movement of the hydraulic cylinder 29 in the mold open state, the second movable mold 27 is positioned at the injection position at the center of the machine, facing the fixed mold 13. When the hydraulic cylinder 19 is operated in the above state, the second movable mold 2 is moved against the fixed mold 13 holding the first molded product 41 in the cavity.
7 is mold-clamped with the required mold-clamping force. Further, after the second movable mold 27 is clamped to the fixed mold 13, the injection nozzle of the second injection device 31 is formed on the parting surface of the clamped fixed mold 13 and the second movable mold 27. When it comes into contact with the sprue,
A relatively soft synthetic resin is injected into the fixed mold 13 and the second movable mold 27 to form the second molded product 43. At this time, since the fixed mold 13 and the second movable mold 27 are clamped approximately at the center of the machine,
The clamping force of the second movable mold 27 with respect to the fixed mold 13 can be made substantially uniform to prevent molding defects. Further, the second molded product 43 is integrated with the first molded product 41 held in the cavity of the fixed mold 13 by the fusing force of the injected synthetic resin, and is made of a different synthetic resin. A molded product 45 consisting of the following is integrally molded.
上記成形動作後に油圧シリンダ１９の復動によ
り固定金型１３と第２可動金型２７とが型開きさ
れると、固定金型１３に内蔵されたエゼクタピン
により固定金型１３内から成型品４５が離型され
た後、成型品自動取出装置（図示せず）により成
形サイクル外へ取出される。また、油圧シリンダ
２９の作動によりスライド板２３が下方位置へ移
動され、その第１可動金型２５と固定金型１３と
を対向させた後、次の成形動作に移る。 After the above molding operation, when the fixed mold 13 and the second movable mold 27 are opened by the backward movement of the hydraulic cylinder 19, the molded product 45 is ejected from the fixed mold 13 by the ejector pin built in the fixed mold 13. After being released from the mold, the molded product is taken out of the molding cycle by an automatic molded product removal device (not shown). Further, the slide plate 23 is moved to a lower position by the operation of the hydraulic cylinder 29, and after the first movable mold 25 and the fixed mold 13 are opposed to each other, the next molding operation is started.
このように本実施例方法は、固定金型は反転さ
せることなく機械中心にて型締めされる固定金型
１３と第１可動金型２５及び固定金型１３と第２
可動金型２７とにより第１及び第２成型品４１，
４３を一体に射出成型することが可能であり、従
来の多重射出成形装置のように固定金型の支持を
強固にすることなく固定金型１３に対して第１可
動金型２５或いは第２可動金型２７をほぼ均一に
型締めして大型の成型品を高品質に射出成形する
ことが出来る。 In this way, in the method of this embodiment, the fixed mold 13 and the first movable mold 25 and the fixed mold 13 and the second movable mold are clamped at the center of the machine without being reversed.
The first and second molded products 41,
43 can be integrally injection molded, and the first movable mold 25 or the second movable mold can be injection molded with respect to the fixed mold 13 without strengthening the support of the fixed mold as in conventional multiple injection molding equipment. The mold 27 is clamped almost uniformly, and a large molded product can be injection molded with high quality.
応用例
同一或いは異なる合成樹脂間にネツトをインサ
ート成形する場合を第７図乃至第９図に従つて説
明する。Application Example The case of insert molding a net between the same or different synthetic resins will be explained with reference to FIGS. 7 to 9.
スライド板２３が下方位置へ移動されて第１可
動金型２５と固定金型１３とが対向した状態にて
第１可動金型２５にインサートされるネツト５１
が取付けられる。上記状態にて油圧シリンダ１９
の作動により第１可動金型２５と固定金型１３と
が所要の型締力にて型締めされた後に第１射出装
置１５により合成樹脂が射出されると、第１可動
金型２５側にネツト５１が一体化された第１成型
品５３が成形される。次に、前記第１可動金型２
５と固定金型１３とが型開きされると、ネツト５
１が一体成形された第１成型品５３は固定金型１
３のキヤビイテイ内に保持されている。この状態
でスライド板２３が上方位置へ移動されたのちに
固定金型１３に対して第２可動金型２７が対向さ
れる。そして上記状態にて固定金型１３と第２可
動金型２７とを所要の型締力にて型締した後に第
２射出装置３１により合成樹脂が射出されると、
ネツト５１がインサートされた第１成型品５３に
対して第２成型品５５が一体に成形される。これ
により第１成型品５３及び第２成型品５５間にネ
ツト５１がインサートされた成型品５７が成形さ
れる。 The net 51 is inserted into the first movable mold 25 with the slide plate 23 moved to the lower position and the first movable mold 25 and the fixed mold 13 facing each other.
is installed. In the above state, the hydraulic cylinder 19
When the synthetic resin is injected by the first injection device 15 after the first movable mold 25 and the fixed mold 13 are clamped with the required mold clamping force by the operation of A first molded product 53 in which the net 51 is integrated is molded. Next, the first movable mold 2
5 and the fixed mold 13 are opened, the net 5
1 is integrally molded with the fixed mold 1.
It is held in the cavity of 3. After the slide plate 23 is moved to the upper position in this state, the second movable mold 27 is opposed to the fixed mold 13. Then, in the above state, after clamping the fixed mold 13 and the second movable mold 27 with a required clamping force, when the synthetic resin is injected by the second injection device 31,
A second molded product 55 is integrally molded with the first molded product 53 into which the net 51 is inserted. As a result, a molded product 57 in which the net 51 is inserted between the first molded product 53 and the second molded product 55 is formed.
上記説明はスライド板２３に第１及び第２可動
金型２５，２７を上下方向へ設けるとともに射出
スクリユーの軸線相互が互いに直交する第１及び
第２射出装置を配置し、２種類の構成樹脂からな
る成型品４５を多重成形するものとしたが、前記
スライド板２３に第１乃至第３可動金型を上下方
向へ配置するとともに前記第１及び第２射出装置
の外に前記第２射出装置と対向する側に第３射出
装置を配置し、３種類の合成樹脂からなる成型品
を多重成型する装置であつてもよい。 In the above explanation, the first and second movable molds 25 and 27 are provided in the vertical direction on the slide plate 23, and the first and second injection devices are arranged so that the axes of the injection screws are orthogonal to each other, and two types of constituent resins are used. However, the first to third movable molds are vertically arranged on the slide plate 23, and the second injection device and the second injection device are arranged outside the first and second injection devices. A third injection device may be disposed on the opposite side, and the device may perform multiple molding of molded products made of three types of synthetic resins.
何れにしても本発明は、上下動可能に支持され
た可動板に取付けられた複数の可動金型の内、ま
ず所要の可動金型を単一の固定金型に対向させて
対応する射出装置により成型品を射出成形したの
ち、可動板を移動して他の可動金型を固定金型に
順次対向させて対応する射出装置により前に成形
された成型品に他の成型品を順次多重成形する技
術であれば、本発明の要旨に包含されるものであ
る。 In any case, the present invention provides an injection device in which a desired movable mold is first opposed to a single fixed mold among a plurality of movable molds attached to a movable plate supported so as to be movable up and down. After injection molding a molded product, the movable plate is moved and other movable molds are successively opposed to the fixed mold, and the corresponding injection devices sequentially multiple mold other molded products onto the previously molded product. Any technology that does this is included within the scope of the present invention.
［発明の効果］
このため本発明は、装置の軽量化、小型化及び
低コスト化を図りながら固定金型に対して第１可
動金型或いは第２可動金型をほぼ均一に型締めし
て大型の成型品を高品質に射出成形することが可
能な多重射出成形装置を提供することが可能であ
る。[Effects of the Invention] Therefore, the present invention is capable of clamping the first movable mold or the second movable mold almost uniformly with respect to the fixed mold while reducing the weight, size, and cost of the device. It is possible to provide a multiplex injection molding apparatus that can injection mold large-sized molded products with high quality.
第１図は本発明に係る多重射出成形装置を示す
略体斜視図、第２図は第１図の平面図、第３図は
支持部材に対する第１及び第２可動金型の取付状
態を示す正面図、第４図乃至だ第６図は作用を示
す説明図、第７図乃至第９図は本考案の応用例を
示す説明図である。
図中１は射出成形機、１３は固定金型、１５は
第１射出装置、２１は支持部材としての支持板、
２３は可動板としてのスライド板、２５は第１可
動金型、２７は第２可動金型、３１は第２射出装
置である。
Fig. 1 is a schematic perspective view showing a multiplex injection molding apparatus according to the present invention, Fig. 2 is a plan view of Fig. 1, and Fig. 3 shows a state in which the first and second movable molds are attached to a support member. The front view, FIGS. 4 to 6 are explanatory diagrams showing the operation, and FIGS. 7 to 9 are explanatory diagrams showing application examples of the present invention. In the figure, 1 is an injection molding machine, 13 is a fixed mold, 15 is a first injection device, 21 is a support plate as a support member,
23 is a slide plate as a movable plate, 25 is a first movable mold, 27 is a second movable mold, and 31 is a second injection device.
Claims (1)
の固定金型と、 固定側型板に向かつて移動可能に支持される可
動側型板と、 該可動側型板を固定側型板側へ移動する型締め
部材と、 該固定側型板に対向する可動側型板に取り付け
られる支持部材と、 該支持部材に対して上下方向へ移動可能に支持
される可動板と、 該可動板に対して上下方向へ所定の間隔をおい
て取り付けられる少なくとも２個の可動金型と、 可動板を移動して各可動金型を可動側型板の機
械中心とほぼ一致する夫々の射出位置に選択的に
位置させる上下駆動部材と、 夫々の射出位置に配置された第１及び第２射出
装置と、 からなる多重射出成形装置。[Scope of Claims] 1. A single fixed mold attached to the machine center of the fixed mold plate; a movable mold plate movably supported toward the fixed mold plate; and the movable mold plate. A mold clamping member that moves toward a fixed mold plate, a support member that is attached to a movable mold plate that faces the fixed mold plate, and a movable plate that is supported so as to be movable in the vertical direction with respect to the support member. , at least two movable molds that are attached to the movable plate at a predetermined interval in the vertical direction; and two movable molds that move the movable plate so that each movable mold substantially coincides with the mechanical center of the movable mold plate. A multi-injection molding apparatus comprising: a vertical drive member selectively positioned at an injection position; and first and second injection devices disposed at respective injection positions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27281187A JPH01113217A (en) | 1987-10-27 | 1987-10-27 | Multiple injection molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27281187A JPH01113217A (en) | 1987-10-27 | 1987-10-27 | Multiple injection molding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01113217A JPH01113217A (en) | 1989-05-01 |
| JPH0558377B2 true JPH0558377B2 (en) | 1993-08-26 |
Family
ID=17519084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27281187A Granted JPH01113217A (en) | 1987-10-27 | 1987-10-27 | Multiple injection molding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01113217A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0617037B2 (en) * | 1989-07-19 | 1994-03-09 | 日精樹脂工業株式会社 | Compound injection molding machine |
| JPH0686077B2 (en) * | 1990-07-16 | 1994-11-02 | 共和工業株式会社 | Multi-layer molding method for thermoplastic synthetic resin materials |
| FR2677296A1 (en) * | 1991-06-07 | 1992-12-11 | Allibert Sa | METHOD FOR PRODUCING A COMPOSITE OBJECT, IN PARTICULAR A TABLE TRAY, BY INJECTION MOLDING PLASTIC MATERIALS, PRESSING MOLD FOR IMPLEMENTING SAID METHOD AND OBJECT THUS OBTAINED |
| JP3609038B2 (en) * | 2001-05-21 | 2005-01-12 | 株式会社日本製鋼所 | Three-layer laminate molding method and molding die |
| JP6873584B1 (en) * | 2020-03-20 | 2021-05-19 | 株式会社日本製鋼所 | Injection device subunit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5973930A (en) * | 1982-10-22 | 1984-04-26 | Mitsubishi Rayon Co Ltd | Manufacture of synthetic resin molded shape |
| JPS6061222A (en) * | 1983-09-14 | 1985-04-09 | Nissan Motor Co Ltd | Injection molding device |
| JPS62152822A (en) * | 1985-12-27 | 1987-07-07 | Kunimori Kagaku:Kk | Double injection molding |
-
1987
- 1987-10-27 JP JP27281187A patent/JPH01113217A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5973930A (en) * | 1982-10-22 | 1984-04-26 | Mitsubishi Rayon Co Ltd | Manufacture of synthetic resin molded shape |
| JPS6061222A (en) * | 1983-09-14 | 1985-04-09 | Nissan Motor Co Ltd | Injection molding device |
| JPS62152822A (en) * | 1985-12-27 | 1987-07-07 | Kunimori Kagaku:Kk | Double injection molding |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01113217A (en) | 1989-05-01 |
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