JP6431763B2

JP6431763B2 - Injection molded body manufacturing apparatus and manufacturing method

Info

Publication number: JP6431763B2
Application number: JP2014258590A
Authority: JP
Inventors: 梅澤　隆男; 隆男梅澤
Original assignee: Mitsuba Corp
Current assignee: Mitsuba Corp
Priority date: 2014-12-22
Filing date: 2014-12-22
Publication date: 2018-11-28
Anticipated expiration: 2034-12-22
Also published as: JP2016117222A

Description

本発明は、サイドターンランプ等の射出成形体の製造装置および製造方法の技術分野に関するものである。 The present invention relates to a technical field of a manufacturing apparatus and a manufacturing method of an injection molded body such as a side turn lamp.

一般に、サイドターンランプ等の中空状の射出成形体は、第一金型、第二金型で第一部材、第二部材を成形（一次の射出成形）をした後、金型をスライド移動して第一、第二部材同士を突き合わせ、二次の射出成形をして両部材同士を一体化するようにしたものが提唱されている（特許文献１参照）。
しかるにこのものは一次射出をした後、二次射出をして一体化を行うというものであるため、製造効率が悪く、コストアップになるという問題がある。
そこで第一金型を回転式とすると共に、第一金型に雄、雄、雌型の型面と、第二金型に雄、雌、雌型の型面とをそれぞれ形成し、第一金型を１２０度ごとに回転することで、第一、第二部材を成形するための一次射出と第一、第二部材を一体化するための二次射出とを繰り返すようにしたものが知られている（特許文献２参照）。 In general, a hollow injection molded body such as a side turn lamp is formed by first molding a first member and a second member using a first mold and a second mold (primary injection molding), and then sliding the mold. The first and second members are brought into contact with each other and subjected to secondary injection molding to integrate both members (see Patent Document 1).
However, this method involves performing a primary injection and then performing a secondary injection to perform integration, and thus there is a problem that the manufacturing efficiency is poor and the cost is increased.
Therefore, the first mold is a rotary type, and the first mold is formed with male, male, and female mold surfaces, and the second mold is formed with male, female, and female mold surfaces. It is known that by rotating the mold every 120 degrees, primary injection for forming the first and second members and secondary injection for integrating the first and second members are repeated. (See Patent Document 2).

特公平２−３８３７７号公報Japanese Examined Patent Publication No. 2-38377 特公平８−４８３０号公報Japanese Patent Publication No.8-4830

しかしながら、前記第一金型を回転式にしたものは、第一、第二部材が同じ材料のものであり、このため、第一、第二部材が異材で形成されるサイドターンランプのような射出成形体を連続的に製造することはできないという問題があり、ここに本発明の解決すべき課題がある。 However, when the first mold is a rotary type, the first and second members are made of the same material. For this reason, the first and second members are made of different materials, such as a side turn lamp. There is a problem that an injection molded body cannot be manufactured continuously, and here is a problem to be solved by the present invention.

本発明は、上記の如き実情に鑑みこれらの課題を解決することを目的として創作されたものであって、請求項１の発明は、一次射出により成形された第一部材、第二部材を突き合わせた状態で該突き合わせ部に樹脂材を二次射出することで一体化される樹脂成形体を製造するための射出成形体の製造装置であって、該製造装置を、第一成形機と、該第一成形機の左右に配される第二、第三成形機で構成するものであって、第一成形機は、第一射出装置と、該第一射出装置側に位置する第一金型と、ターンテーブルと、該ターンテーブル側に設けられる第二、第三金型とが備えられ、第一金型を第二または第三金型に型締めして第一射出装置で射出することで第一部材の一次射出がなされ、第一金型の型開きをすることで第一部材は第二または第三金型に残るように構成され、ターンテーブルは、第一金型に対向する第一位置に位置する第二金型を第二成形機側の第二位置への往復移動と、前記第一位置に位置する第三金型を第三成形機側の第三位置への往復移動をするように構成され、第二成形機は、第二射出装置と、該第二射出装置側の第四金型と、該第四金型に型締めされた状態で第二射出装置の射出をすることで第二部材の一次射出がなされる第五金型とが備えられ、第四金型の型開きをすることで第二部材は第四金型に残るように構成され、第三成形機は、第三射出装置と、該第三射出装置側の第六金型と、該第六金型に型締めされた状態で第三射出装置の射出をすることで第二部材の一次射出がなされる第七金型とが備えられ、第六金型の型開きをすることで第二部材は第六金型に残るように構成され、第二金型は、前記第二位置から第五金型が第二部材を成形する位置である第四位置まで往復のスライド移動ができるように構成され、第三金型は、前記第三位置から第七金型が第二部材を成形する位置である第五位置まで往復のスライド移動ができるように構成され、第五金型は、前記第四位置から該第四位置を外れた第六位置まで往復のスライド移動ができるように構成され、第七金型は、前記第五位置から該第五位置を外れた第七位置まで往復のスライド移動ができるように構成され、前記ターンテーブルの回転作動、第一〜第三射出装置の射出作動、第一、第四、第六金型の型締め型開き作動、第二、第三、第五、第七金型のスライド移動の制御を司る制御部は、第三金型が第一位置に、第二金型が第四位置に、第五金型が第六位置に、第七金型が第五位置にそれぞれ位置する状態を初期状態としたときに、第一、第三射出装置が第一、第二部材の成形を行うための一次射出の指令と第二射出装置が第一部材、第二部材を一体化するための二次射出の指令との第一指令と、第二金型の第二位置への移動と、第五金型の第四位置への移動と、第七金型の第七位置への移動を行うための第二指令と、ターンテーブルを回転させて第二金型を第一位置に移動させることで第三位置に移動した第三金型を第五位置に移動させる第三指令と、第一射出装置、第二射出装置が第一部材、第二部材の成形を行うための一次の射出の指令と第三射出装置が第一部材、第二部材を一体化するための二次射出の指令との第四の指令と、第三金型の第三位置へのスライド移動、第五金型の第六位置へのスライド移動、第七金型の第五位置への移動を行うための第五指令と、ターンテーブルを回転させて第三金型を第一位置に移動させることにより第二位置に移動した第二金型を第四位置に移動させる第六指令を順次繰り返して出力するようにしたことを特徴とする射出成形体の製造装置である。
請求項２の発明は、一次射出により成形された第一部材、第二部材を突き合わせた状態で該突き合わせ部に樹脂材を二次射出することで一体化される樹脂成形体を製造するための射出成形体の製造方法であって、第一成形機と、該第一成形機の左右に配される第二、第三成形機からなり、第一成形機は、第一射出装置と、該第一射出装置側に位置する第一金型と、ターンテーブルと、該ターンテーブル側に設けられる第二、第三金型とが備えられ、第一金型を第二または第三金型に型締めして第一射出装置で射出することで第一部材の一次射出がなされ、第一金型の型開きをすることで第一部材は第二または第三金型に残るように構成され、ターンテーブルは、第一金型に対向する第一位置に位置する第二金型を第二成形機側の第二位置への往復移動と、前記第一位置に位置する第三金型を第三成形機側の第三位置への往復移動をするように構成され、第二成形機は、第二射出装置と、該第二射出装置側の第四金型と、該第四金型に型締めされた状態で第二射出装置の射出をすることで第二部材の一次射出がなされる第五金型とが備えられ、第四金型の型開きをすることで第二部材は第四金型に残るように構成され、第三成形機は、第三射出装置と、該第三射出装置側の第六金型と、該第六金型に型締めされた状態で第三射出装置の射出をすることで第二部材の一次射出がなされる第七金型とが備えられ、第六金型の型開きをすることで第二部材は第六金型に残るように構成され、第二金型は、前記第二位置から第五金型が第二部材を成形する位置である第四位置まで往復のスライド移動ができるように構成され、第三金型は、前記第三位置から第七金型が第二部材を成形する位置である第五位置まで往復のスライド移動ができるように構成され、第五金型は、前記第四位置から該第四位置を外れた第六位置まで往復のスライド移動ができるように構成され、第七金型は、前記第五位置から該第五位置を外れた第七位置まで往復のスライド移動ができるように構成され、前記ターンテーブルの回転作動、第一〜第三射出装置の射出作動、第一、第四、第六金型の型締め型開き作動、第二、第三、第五、第七金型のスライド移動の制御を司る制御部は、第三金型が第一位置に、第二金型が第四位置に、第五金型が第六位置に、第七金型が第五位置にそれぞれ位置する状態を初期状態としたときに、第一、第三射出装置が第一、第二部材の成形を行うための一次射出と第二射出装置が第一部材、第二部材を一体化するための二次射出とを行う工程、第二金型の第二位置への移動と、第五金型の第四位置への移動と、第七金型の第七位置への移動を行う工程、ターンテーブルを回転させて第二金型を第一位置に移動させることで第三位置に移動した第三金型を第五位置に移動させる工程、第一射出装置、第二射出装置が第一部材、第二部材の成形を行うための一次の射出の指令と第三射出装置が第一部材、第二部材を一体化するための二次射出とを行う工程、第三金型の第三位置へのスライド移動、第五金型の第六位置へのスライド移動、第七金型の第五位置への移動を行う工程、ターンテーブルを回転させて第三金型を第一位置に移動させることにより第二位置に移動した第二金型を第四位置に移動させる工程を順次繰り返して行うようにしたことを特徴とする射出成形体の製造方法である。 The present invention has been created in view of the above-described circumstances for the purpose of solving these problems, and the invention according to claim 1 butts the first member and the second member formed by primary injection. An injection molded body manufacturing apparatus for manufacturing a resin molded body integrated by secondary injection of a resin material into the butt portion in a state where the manufacturing apparatus includes the first molding machine, The first and second molding machines are arranged on the left and right sides of the first molding machine. The first molding machine includes a first injection device and a first mold located on the first injection device side. And a turntable and second and third molds provided on the turntable side, and the first mold is clamped to the second or third mold and injected by the first injection device. In the first injection of the first member, the first member is second or by opening the mold of the first mold The turntable is configured to remain in the three molds, and the turntable moves the second mold located at the first position facing the first mold to the second position on the second molding machine side, The third mold located at the position is configured to reciprocate to the third position on the third molding machine side. The second molding machine includes a second injection device and a fourth injection device on the second injection device side. A mold and a fifth mold in which primary injection of the second member is performed by injecting the second injection device while being clamped to the fourth mold; The second member is configured to remain in the fourth mold, and the third molding machine includes a third injection apparatus, a sixth mold on the third injection apparatus side, and a sixth mold. A seventh mold that performs primary injection of the second member by injecting the third injection device in a clamped state is provided, and the second member is opened by opening the sixth mold The second mold is configured to reciprocate from the second position to a fourth position where the fifth mold forms the second member, and the second mold is configured to remain in the six molds. The three molds are configured to be reciprocally slidable from the third position to a fifth position where the seventh mold is a position where the second member is formed, and the fifth mold is configured to move the fourth mold from the fourth position. It is configured to be able to reciprocally slide to the sixth position off the fourth position, and the seventh mold can be reciprocated to move from the fifth position to the seventh position outside the fifth position. The turntable rotation operation, the first to third injection device injection operation, the first, fourth and sixth mold clamping operation, the second, third, fifth and seventh. The control unit that controls the slide movement of the mold has the third mold in the first position and the second mold in the fourth position. In position, to the fifth mold sixth position, when the seventh mold has a state positioned respectively to the fifth position to the initial state, first, third injection device first, molding of the second member The first command for the primary injection and the second injection command for the second injection device to integrate the first member and the second member, and the movement of the second mold to the second position And the second command to move the fifth mold to the fourth position, the seventh mold to the seventh position, and rotate the turntable to move the second mold to the first position. And a third command to move the third mold moved to the third position to the fifth position, and the first injection device and the second injection device to perform the molding of the first member and the second member. injection command and the third injection device is the first member, and the fourth command and the command of the secondary injection for integrating the second member, slide to the third position of the third mold 5th command to move, 5th mold slide to 6th position, 7th mold to 5th position, and turn table to move 3rd mold to 1st position The injection molding product manufacturing apparatus is characterized in that the sixth command for moving the second mold moved to the second position to the fourth position is repeatedly output in sequence.
The invention according to claim 2 is for producing a resin molded body integrated by secondary injection of a resin material to the butted portion in a state where the first member and the second member molded by primary injection are butted. A method for producing an injection-molded body comprising a first molding machine and second and third molding machines arranged on the left and right sides of the first molding machine, the first molding machine comprising: a first injection device; A first mold located on the first injection device side, a turntable, and second and third molds provided on the turntable side are provided, and the first mold is changed to the second or third mold. The primary injection of the first member is performed by clamping and injecting with the first injection device, and the first member is configured to remain in the second or third mold by opening the mold of the first mold. The turntable moves the second mold located at the first position facing the first mold to the second position on the second molding machine side. The second molding machine is configured to reciprocate and reciprocate the third mold located at the first position to the third position on the third molding machine side. A fourth mold on the second injection device side, and a fifth mold in which primary injection of the second member is performed by injecting the second injection device while being clamped to the fourth mold, The second member is configured to remain in the fourth mold by opening the fourth mold. The third molding machine includes a third injection device and a sixth mold on the third injection device side. And a seventh mold in which primary injection of the second member is performed by injecting the third injection device while being clamped to the sixth mold, and the sixth mold is opened. Thus, the second member is configured to remain in the sixth mold, and the second mold is slid back and forth from the second position to the fourth position where the fifth mold forms the second member. The third mold is configured to be reciprocally slidable from the third position to a fifth position where the seventh mold forms the second member. The mold is configured to be capable of sliding back and forth from the fourth position to a sixth position outside the fourth position, and the seventh mold is a seventh mold that is out of the fifth position from the fifth position. It is configured to be capable of reciprocating slide movement to a position, and the rotation operation of the turntable, the injection operation of the first to third injection devices, the mold clamping mold opening operation of the first, fourth and sixth molds, the second The control unit that controls the slide movement of the 3rd, 5th and 7th molds is that the 3rd mold is in the 1st position, the 2nd mold is in the 4th position, and the 5th mold is in the 6th position. In addition, when the state in which the seventh mold is located at the fifth position is the initial state, the first and third injection devices are the first, A step of performing primary injection for forming the second member and secondary injection for the second injection device to integrate the first member and the second member, movement of the second mold to the second position; , Moving the fifth mold to the fourth position and moving the seventh mold to the seventh position; rotating the turntable to move the second mold to the first position; The step of moving the third mold moved to the fifth position, the first injection device, the second injection device is the primary injection command for forming the first member, the second member and the third injection device first member, the step of performing a secondary injection in order to integrate the second member, the sliding movement to the third position of the third mold, the slide movement to the sixth position of the fifth mold, seventh mold Moving to the fifth position, rotating the turntable and moving the third mold to the first position to move to the second position And a method for producing an injection molded article, characterized in that the second mold was performed by sequentially repeating the step of moving the fourth position.

請求項１、２の発明とすることにより、第一、第二部材を成形するための一次射出と、第一、第二部材を一体化するための二次射出とを同時連続的に行うことができて、製造効率が高いものでありながら、第一射出装置で第一部材の一次射出をし、第二、第三射出装置で第二部材の一次射出と第一、第二部材を一体化するための二次射出とを交互に行うことになって、第一、第二部材が異材となる射出成形体を連続的に成形できることになって、製造効率が高く、コストダウンを図ることができる。 According to the inventions of claims 1 and 2, the primary injection for forming the first and second members and the secondary injection for integrating the first and second members are performed simultaneously and continuously. Although the production efficiency is high, the primary injection of the first member is performed by the first injection device, and the primary injection of the second member and the first and second members are integrated by the second and third injection devices. By alternately performing secondary injection to make it possible, it is possible to continuously form an injection molded body in which the first and second members are different materials, so that the production efficiency is high and the cost is reduced. Can do.

射出成形体の側面図である。It is a side view of an injection molded object. 射出成形装置の概略正面図である。It is a schematic front view of an injection molding apparatus. 射出成形装置の下金型の移動状態を示す要部平面図である。It is a principal part top view which shows the movement state of the lower metal mold | die of an injection molding apparatus. （Ｘ）〜（Ｚ）は前半の射出成形工程を示す作用説明図である。(X)-(Z) is an effect | action explanatory drawing which shows the injection molding process of the first half. （Ｘ）〜（Ｚ）は後半の射出成形工程を示す作用説明図である。(X)-(Z) are operation | movement explanatory drawings which show the injection molding process of the latter half.

以下、本発明の実施の形態について、図面に基づいて説明する。図面において、１は中空状の射出成形体であって、該射出成形体は、一次射出で成形された異材からなる第一部材（例えばポリカルボネート樹脂）２と第二部材（例えばアクリル樹脂）３とを突き合わせ、その突き合わせ部に一体化用の樹脂（一体化用樹脂）４を二次射出することで成形されるものであり、以降、該射出成形体１の製造装置および製造方法について説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, 1 is a hollow injection molded body, and the injection molded body is a first member (for example, polycarbonate resin) 2 and a second member (for example, acrylic resin) made of different materials molded by primary injection. 3, and a resin for integration (resin for integration) 4 is secondarily injected into the butted portion, and a manufacturing apparatus and a manufacturing method for the injection molded body 1 will be described hereinafter. To do.

５は第一部材２を射出成形するための第一成形機であって、該第一成形機５の左右両側には第二部材３および一体化樹脂４を射出成形する第二、第三成形機６、７が配設されている。第一成形機５には、第一射出装置８と第一部材２を成形するための第一、第二、第三金型８ａ、８ｂ、８ｃとが設けられ、第二成形機６には第二射出装置９と第二部材３を成形するための第四、第五金型９ａ、９ｂとが設けられ、第三成形機７には第三射出装置１０と第二部材３を成形するための第六、第七金型１０ａ、１０ｂとが設けられている。 Reference numeral 5 denotes a first molding machine for injection molding the first member 2, and second and third moldings for injection molding the second member 3 and the integrated resin 4 on the left and right sides of the first molding machine 5. Machines 6 and 7 are arranged. The first molding machine 5 is provided with a first injection device 8 and first, second, and third molds 8a, 8b, and 8c for molding the first member 2, and the second molding machine 6 includes Fourth and fifth molds 9 a and 9 b for molding the second injection device 9 and the second member 3 are provided, and the third injection machine 10 and the second member 3 are molded in the third molding machine 7. The sixth and seventh molds 10a and 10b are provided.

前記第一成形機５にはさらにターンテーブル１１が設けられるが、該ターンテーブル１１は、第一射出装置８側に配される第一金型８ａに対向する第一位置Ａに対して±９０度の角度の回転をする第二Ｂ、第三位置Ｃに移動するように設定されており、該第二、第三金型８ｂ、８ｃはスライド移動できるように設けられている。ここでターンテーブル１１が第一位置Ａに位置した状態で第一金型８ａに第二金型８ｂが対向していた場合に、第一金型８ａを第二金型８ｂに型締めし、第一射出装置８からの一次射出で第一部材２が成形されるが、第一金型８ａを型開きしたとき第一部材２は第二金型８ｂに残るように設定されている。
そしてこの状態でターンテーブル１１が＋９０度回転して第二金型８ｂが第二位置Ｂに移動する（時計回り方向の回転と仮にする）と、第二金型８ｂは該第二位置Ｂから第二射出装置９側の第四金型９ａに対向する第四位置Ｄまでスライド移動できるようになっており、この状態で第四金型９ａが第二金型８ｂに型締めして後述するように第二射出装置９で一体化樹脂４を射出（二次射出）して第一、第二部材２、３を一体化して射出成形体１の製造ができるようになっている。
一方、ターンテーブル１１が第一位置Ａに位置する状態で第三金型８ｃが第一金型８ａに対向していた場合に、第一金型８ａを第三金型８ｃに型締めし、第一射出装置８からの一次射出で第一部材２が成形されるが、第一金型８ａを型開きしたとき第一部材２は第三金型８ｃに残るように設定されている。そしてこの状態でターンテーブル１１が−９０度回転して第三位置Ｃに移動する（反時計回り方向の回転する）と、第三金型８ｃは該第三位置Ｃから第三射出装置１０側の第六金型１０ａに対向する第五位置Ｅまでスライド移動できるようになっており、この状態で第六金型１０ａが第三金型８ｃに型締めして後述するように第三射出装置１０で一体化樹脂４を射出（二次射出）して第一、第二部材２、３を一体化して射出成形体１の製造ができるようになっている。 The first molding machine 5 is further provided with a turntable 11. The turntable 11 is ± 90 with respect to the first position A facing the first mold 8a disposed on the first injection device 8 side. The second and third molds 8b and 8c are set so as to be slidable. Here, when the second mold 8b is opposed to the first mold 8a with the turntable 11 positioned at the first position A, the first mold 8a is clamped to the second mold 8b, The first member 2 is formed by primary injection from the first injection device 8, but the first member 2 is set so as to remain in the second die 8b when the first die 8a is opened.
In this state, when the turntable 11 rotates by +90 degrees and the second mold 8b moves to the second position B (assuming rotation in the clockwise direction), the second mold 8b is moved from the second position B. The fourth mold 9a can be slid and moved to a fourth position D facing the fourth mold 9a on the second injection device 9 side. In this state, the fourth mold 9a is clamped to the second mold 8b and will be described later. Thus, the integrated resin 4 is injected (secondary injection) by the second injection device 9 so that the first and second members 2 and 3 are integrated to manufacture the injection molded body 1.
On the other hand, when the third mold 8c faces the first mold 8a with the turntable 11 positioned at the first position A, the first mold 8a is clamped to the third mold 8c, The first member 2 is molded by the primary injection from the first injection device 8, but the first member 2 is set to remain in the third mold 8c when the first mold 8a is opened. In this state, when the turntable 11 rotates by -90 degrees and moves to the third position C (rotates counterclockwise), the third mold 8c moves from the third position C to the third injection device 10 side. In this state, the sixth mold 10a is clamped to the third mold 8c and the third injection device as will be described later. 10, the integrated resin 4 is injected (secondary injection), and the first and second members 2 and 3 are integrated to manufacture the injection-molded body 1.

また第二射出装置９側の第四金型９ａに対向する第四位置Ｄには第五金型９ｂが設けられるが、該第五金型９ｂはスライド金型となっていて前記第四金型９ａに対向する第四位置Ｄと該第四位置Ｄから外れた第六位置Ｆに往復移動できるように設定されている。そして第四金型９ａを第五金型９ｂに型締めした状態で第二射出装置９から一次射出することで第二部材３が形成されるが、第四金型９ａを型開きしたとき、第二部材３は第四金型９ａに残るように設定されている。 Further, a fifth mold 9b is provided at a fourth position D facing the fourth mold 9a on the second injection device 9 side. The fifth mold 9b is a slide mold, and the fourth mold 9a. Are set so as to be able to reciprocate between a fourth position D facing the first position and a sixth position F deviating from the fourth position D. Then, the second member 3 is formed by primary injection from the second injection device 9 in a state where the fourth mold 9a is clamped to the fifth mold 9b, but when the fourth mold 9a is opened, The two members 3 are set so as to remain in the fourth mold 9a.

さらに第三射出装置１０側の第六金型１０ａに対向する第五位置には第七金型１０ｂが設けられるが、該第七金型１０ｂもスライド金型となっていて第六金型１０ａに対向する第五位置Ｅと該第五位置Ｅから外れた第七位置Ｇに往復移動できるように設定されている。そして第六金型１０ａを第七金型１０ｂに型締めした状態で第三射出装置１０から一次射出することで第二部材３が形成されるが、第六金型１０ａを型開きしたとき、第二部材３は第六金型１０ａに残るように設定されている。 Further, a seventh mold 10b is provided at a fifth position facing the sixth mold 10a on the third injection device 10 side. The seventh mold 10b is also a slide mold, and the sixth mold 10a. Is set so as to be reciprocally moved to a fifth position E opposite to the fifth position E and a seventh position G deviating from the fifth position E. And the second member 3 is formed by primary injection from the third injection device 10 with the sixth mold 10a clamped to the seventh mold 10b, but when the sixth mold 10a is opened, The second member 3 is set so as to remain in the sixth mold 10a.

因みに、第一〜第三射出装置８、９、１０の射出制御、第一、第四、第六金型８ａ、９ａ、１０ａの型締め型開き作動制御、第二、第三、第五、第七金型８ｂ、８ｃ、９ｂ、１０ｂのスライド移動制御等の各種の制御は図示しない制御部からの指令を受けて実行される。
また、第二、第三、第五、第七金型８ｂ、８ｃ、９ｂ、１０ｂのスライド移動は、これら金型をガイドレールに沿って移動するように構成することででき、またその駆動源は、シリンダの伸縮によって行うようにしてもよく、またサーボモータ等のモータ駆動源の回転により螺子軸（雄螺子）を回転させ、該回転する螺子軸に、金型側に設けた雌螺子を螺合させることで移動させるようにしても実施することができる。 Incidentally, the injection control of the first to third injection devices 8, 9, 10, the mold clamping opening operation control of the first, fourth, sixth molds 8 a, 9 a, 10 a, second, third, fifth, Various controls such as slide movement control of the seventh molds 8b, 8c, 9b, and 10b are executed in response to a command from a control unit (not shown).
The slide movement of the second, third, fifth, and seventh molds 8b, 8c, 9b, and 10b can be performed by moving these molds along the guide rail, and the drive source thereof. May be performed by expanding and contracting a cylinder, and a screw shaft (male screw) is rotated by rotation of a motor drive source such as a servomotor, and a female screw provided on the mold side is attached to the rotating screw shaft. Even if it moves by screwing, it can implement.

このように設定される第一〜第三成形機５、６、７を用いて射出成形体１を製造する手順について次に説明する。まず、ターンテーブル１１上の第二金型８ｂが第一金型８ａに対向する第一位置Ａに位置する状態が初期状態であるとした場合、第五金型９ｂは第四金型９ａに対向する第四位置Ｄに位置し、第三金型８ｃは第六金型１０ａに対向する第五位置Ｅに位置し、第七金型１０ｂはここから外れた第七位置Ｇに位置している。この状態で第一、第四、第六金型８ａ、９ａ、１０ａをそれぞれ第二、第五、第三金型８ｂ、９ｂ、８ｃに型締めして第一、第二射出装置８、９で一次射出することにより第一、第二部材２、３が成形されるが、第三射出装置１０は、初期状態では射出することがなく、次の同じ工程のとき、後述するように第三金型８ｃには第一部材２が残っているため、第三射出装置１０から一体化樹脂４を射出（二次射出）して第一、第二部材２、３を一体化して射出成形体１を製造するようになっている（図４（Ｘ）参照）。 Next, a procedure for manufacturing the injection molded body 1 using the first to third molding machines 5, 6, and 7 set in this way will be described. First, when the state in which the second mold 8b on the turntable 11 is located at the first position A facing the first mold 8a is the initial state, the fifth mold 9b faces the fourth mold 9a. The third mold 8c is located at the fifth position E opposite to the sixth mold 10a, and the seventh mold 10b is located at the seventh position G outside the fourth position D. . In this state, the first, second, and sixth molds 8a, 9a, and 10a are clamped to the second, fifth, and third molds 8b, 9b, and 8c, respectively, and the first and second injection devices 8, 9 are performed. The first and second members 2 and 3 are formed by the primary injection in the first injection, but the third injection device 10 does not inject in the initial state. Since the first member 2 remains in the mold 8c, the integrated resin 4 is injected (secondary injection) from the third injection device 10, and the first and second members 2, 3 are integrated to form an injection molded body. 1 is manufactured (see FIG. 4 (X)).

ついで第一、第四、第六金型８ａ、９ａ、１０ａを型開きすると、第二金型８ｂには第一部材２が残り、第四金型９ａには第二部材３が残り、第三金型８ｃには初期状態を除いて射出成形体１が残ることになり、この状態で第三金型８ｃの第五位置Ｅからターンテーブル１１上の第三位置Ｃへのスライド移動、第五金型９ｂの第四位置Ｄから第六位置Ｆへのスライド移動、そして第七金型１０ｂの第五位置Ｅへのスライド移動を行うと共に、射出成形体１をエジェクターピン（図示せず）等を用いて第三金型８ｃから取り出し、マジックハンド等のロボット１２により回収する（図４（Ｙ）参照）。 Then, when the first, fourth and sixth molds 8a, 9a and 10a are opened, the first member 2 remains in the second mold 8b, the second member 3 remains in the fourth mold 9a, The injection mold 1 remains in the three molds 8c except for the initial state. In this state, the third mold 8c slides from the fifth position E to the third position C on the turntable 11, The fifth mold 9b is slid from the fourth position D to the sixth position F, and the seventh mold 10b is slid to the fifth position E. The injection molded body 1 is ejected from an ejector pin (not shown), etc. Is taken out from the third mold 8c and collected by the robot 12 such as a magic hand (see FIG. 4Y).

次にターンテーブル１１を＋９０度回転して第二金型８ｂを第二位置Ｂに、第三金型を第一位置Ａにそれぞれ移動（図４（Ｚ）参照）した後、第二金型８ｂの第四位置Ｄへスライド移動させる。 Next, the turntable 11 is rotated +90 degrees to move the second mold 8b to the second position B and the third mold to the first position A (see FIG. 4 (Z)), and then the second mold. Slide to the fourth position D of 8b.

この状態で第一金型８ａ、第四金型９ａ、第六金型１０ａを第三金型８ｃ、第二金型８ｂ、第七金型１０ｂに対して型締めをし、第一射出装置８による射出（一次射出）をすることで第一、第三金型８ａ、８ｃの中には第一部材２が成形され、第三射出装置１０による射出（一次射出）をすることで第六、第七金型１０ａ、１０ｂの中には第二部材３が成形されるが、第二射出装置９による射出（二次射出）で、第四金型９ａに残る第一部材２と第二金型８ｂに残る第一部材２の突き合わせ部に一体化用樹脂４が射出（二次射出）されて一体化がなされる（図５（Ｘ）参照）。 In this state, the first mold 8a, the fourth mold 9a, and the sixth mold 10a are clamped to the third mold 8c, the second mold 8b, and the seventh mold 10b, and the first injection device The first member 2 is formed in the first and third molds 8a and 8c by injection by 8 (primary injection), and the sixth by injection (primary injection) by the third injection device 10. The second member 3 is molded in the seventh molds 10a and 10b, but the second member 3 and the second member 2 remaining in the fourth mold 9a by injection (secondary injection) by the second injection device 9 are used. The integration resin 4 is injected (secondary injection) into the abutting portion of the first member 2 remaining in the mold 8b to be integrated (see FIG. 5 (X)).

その後、第一金型８ａ、第四金型９ａ、第六金型１０ａを型開きをした後、第二金型８ｂのターンテーブル１１上の第二位置Ｂへのスライド移動、第五金型９ｂの第四位置Ｄへのスライド移動、第七金型１０ｂの第七位置Ｇへのスライド移動をするよう制御すると共に、第二金型８ｂから射出成形体１を取り出し回収する（図５（Ｙ）参照）。しかる後、ターンテーブル１１を−９０度回転させ、第三位置Ｃに位置した第三金型８ｃを第五位置Ｅに移動させる（図５（Ｚ）参照）。これにより前記図４（Ｘ）の型締めする前の状態となって復帰し、以降この工程が順次繰り返されることになる。 Thereafter, after the first mold 8a, the fourth mold 9a, and the sixth mold 10a are opened, the second mold 8b slides to the second position B on the turntable 11, and the fifth mold 9b. Is controlled so as to slide to the fourth position D and to move the seventh mold 10b to the seventh position G, and the injection molded body 1 is taken out and collected from the second mold 8b (FIG. 5 (Y )reference). Thereafter, the turntable 11 is rotated by -90 degrees, and the third mold 8c located at the third position C is moved to the fifth position E (see FIG. 5 (Z)). As a result, the state before the mold clamping shown in FIG. 4 (X) is restored, and thereafter, this process is sequentially repeated.

叙述の如く構成された本実施の形態において、第一部材２、第二部材３の一次射出による成形と、成形された第一、第二部材２、３を一体化するための二次射出による成形とが同時連続的に行われることになるものでありながら、この場合において、第一射出装置８が第一部材２の一次射出をし、第二、第三射出装置９、１０が第二部材３の一次射出と第一、第二部材を一体化するための二次射出を交互連続的に行うことになって、第一、第二部材２、３が異材であっても射出成形体１の一連の製造が連続的にできることになって生産効率が向上する。 In the present embodiment configured as described, by the primary injection of the first member 2 and the second member 3, and by the secondary injection for integrating the molded first and second members 2 and 3. In this case, the first injection device 8 performs the primary injection of the first member 2 and the second and third injection devices 9 and 10 are the second while the molding is performed simultaneously and continuously. The primary injection of the member 3 and the secondary injection for integrating the first and second members are performed alternately and continuously, even if the first and second members 2 and 3 are made of different materials. The production efficiency is improved because one series of manufacturing can be continuously performed.

本発明は、サイドターンランプ等の射出成形体の製造装置および製造方法に利用することができる。 The present invention can be used in a manufacturing apparatus and a manufacturing method of an injection molded body such as a side turn lamp.

１射出成形体
２第一部材
３第二部材
４一体化樹脂
５第一成形機
６第二成形機
７第三成形機
８第一射出装置
８ａ第一金型
８ｂ第二金型
８ｃ第三金型
９第二射出装置
９ａ第四金型
９ｂ第五金型
１０第三射出装置
１０ａ第六金型
１０ｂ第七金型
１１ターンテーブル
Ａ第一位置
Ｂ第二位置
Ｃ第三位置
Ｄ第四位置
Ｅ第五位置
Ｆ第六位置
Ｇ第七位置
DESCRIPTION OF SYMBOLS 1 Injection molded object 2 1st member 3 2nd member 4 Integrated resin 5 1st molding machine 6 2nd molding machine 7 3rd molding machine 8 1st injection apparatus 8a 1st metal mold | die 8b 2nd metal mold | die 8c 3rd metal mold | die Mold 9 Second injection device 9a Fourth mold 9b Fifth mold 10 Third injection device 10a Sixth mold 10b Seventh mold 11 Turntable A First position B Second position C Third position D Fourth position E 5th position F 6th position G 7th position

Claims

In an injection molded body manufacturing apparatus for manufacturing a resin molded body integrated by secondary injection of a resin material into the butted portion in a state where the first member and the second member molded by primary injection are butted together There,
The manufacturing apparatus comprises a first molding machine and second and third molding machines arranged on the left and right of the first molding machine,
The first molding machine includes a first injection device, a first mold located on the first injection device side, a turntable, and second and third molds provided on the turntable side, First injection of the first member is performed by clamping the first mold to the second or third mold and injecting with the first injection device, and the first member is opened by opening the mold of the first mold. The turntable is configured to remain in the second or third mold, and the turntable moves the second mold located at the first position opposite to the first mold to the second position on the second molding machine side. The third mold located at the first position is configured to reciprocate to the third position on the third molding machine side,
The second molding machine includes a second injection device, a fourth mold on the second injection device side, and a second member by injecting the second injection device while being clamped to the fourth mold. And a fifth mold that is subjected to primary injection, and the second member is configured to remain in the fourth mold by opening the fourth mold.
The third molding machine includes the third injection device, the sixth mold on the third injection device side, and the second member by injecting the third injection device while being clamped to the sixth mold. And a seventh mold for primary injection of the second mold, and the second member is configured to remain in the sixth mold by opening the sixth mold,
The second mold is configured to allow reciprocal sliding movement from the second position to the fourth position, which is a position where the fifth mold molds the second member,
The third mold is configured to allow reciprocal sliding movement from the third position to the fifth position, which is the position at which the seventh mold forms the second member,
The fifth mold is configured to be capable of sliding back and forth from the fourth position to a sixth position outside the fourth position,
The seventh mold is configured to be capable of sliding back and forth from the fifth position to the seventh position outside the fifth position,
Rotation operation of the turntable, injection operation of the first to third injection devices, mold opening operation of the first, fourth and sixth molds, slide of the second, third, fifth and seventh molds The control unit that controls the movement
When the third mold is in the first position, the second mold is in the fourth position, the fifth mold is in the sixth position, and the seventh mold is in the fifth position. The primary injection command for the first and third injection devices to form the first and second members and the secondary injection command for the second injection device to integrate the first and second members The first directive of
A second command for moving the second mold to the second position, moving the fifth mold to the fourth position, and moving the seventh mold to the seventh position;
A third command to move the third mold moved to the third position to the fifth position by rotating the turntable and moving the second mold to the first position;
The primary injection command for forming the first member and the second member by the first injection device and the second injection device and the secondary injection for integrating the first member and the second member by the third injection device A fourth command with the command of
A fifth command for performing a slide movement of the third mold to the third position, a slide movement of the fifth mold to the sixth position, and a movement of the seventh mold to the fifth position;
By rotating the turntable and moving the third mold to the first position, the sixth command for moving the second mold moved to the second position to the fourth position is repeatedly output in sequence. An apparatus for producing an injection-molded article.

A method of manufacturing an injection molded body for manufacturing a resin molded body integrated by secondary injection of a resin material to the butted portion in a state where the first member and the second member molded by primary injection are butted. There,
The first molding machine and the second and third molding machines arranged on the left and right of the first molding machine,
The first molding machine includes a first injection device, a first mold located on the first injection device side, a turntable, and second and third molds provided on the turntable side, First injection of the first member is performed by clamping the first mold to the second or third mold and injecting with the first injection device, and the first member is opened by opening the mold of the first mold. The turntable is configured to remain in the second or third mold, and the turntable moves the second mold located at the first position opposite to the first mold to the second position on the second molding machine side. The third mold located at the first position is configured to reciprocate to the third position on the third molding machine side,
The second molding machine includes a second injection device, a fourth mold on the second injection device side, and a second member by injecting the second injection device while being clamped to the fourth mold. And a fifth mold that is subjected to primary injection, and the second member is configured to remain in the fourth mold by opening the fourth mold.
The third molding machine includes the third injection device, the sixth mold on the third injection device side, and the second member by injecting the third injection device while being clamped to the sixth mold. And a seventh mold for primary injection of the second mold, and the second member is configured to remain in the sixth mold by opening the sixth mold,
The second mold is configured to allow reciprocal sliding movement from the second position to the fourth position, which is a position where the fifth mold molds the second member,
The third mold is configured to allow reciprocal sliding movement from the third position to the fifth position, which is the position at which the seventh mold forms the second member,
The fifth mold is configured to be capable of sliding back and forth from the fourth position to a sixth position outside the fourth position,
The seventh mold is configured to be capable of sliding back and forth from the fifth position to the seventh position outside the fifth position,
Rotation operation of the turntable, injection operation of the first to third injection devices, mold opening operation of the first, fourth and sixth molds, slide of the second, third, fifth and seventh molds The control unit that controls the movement
When the third mold is in the first position, the second mold is in the fourth position, the fifth mold is in the sixth position, and the seventh mold is in the fifth position. The first and third injection devices perform primary injection for forming the first and second members and the second injection device performs secondary injection for integrating the first and second members,
Moving the second mold to the second position, moving the fifth mold to the fourth position, and moving the seventh mold to the seventh position;
A step of moving the third mold moved to the third position to the fifth position by rotating the turntable and moving the second mold to the first position;
The primary injection command for forming the first member and the second member by the first injection device and the second injection device and the secondary injection for integrating the first member and the second member by the third injection device A process of performing
Step of performing the movement of the third sliding movement of the mold the third position of the slide movement to the sixth position of the fifth mold, the fifth position of the seventh mold,
The step of rotating the turntable to move the third mold to the first position to move the second mold moved to the second position to the fourth position is sequentially repeated. A method for producing an injection molded body.