JPS623918A - Injection molding equipment - Google Patents

Injection molding equipment

Info

Publication number
JPS623918A
JPS623918A JP14254685A JP14254685A JPS623918A JP S623918 A JPS623918 A JP S623918A JP 14254685 A JP14254685 A JP 14254685A JP 14254685 A JP14254685 A JP 14254685A JP S623918 A JPS623918 A JP S623918A
Authority
JP
Japan
Prior art keywords
mold
injection
injection molding
movable mold
control unit
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
Application number
JP14254685A
Other languages
Japanese (ja)
Inventor
Masahiro Fujisawa
藤沢　方大
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Heavy Industries Ltd
Original Assignee
Sumitomo Heavy Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sumitomo Heavy Industries Ltd filed Critical Sumitomo Heavy Industries Ltd
Priority to JP14254685A priority Critical patent/JPS623918A/en
Publication of JPS623918A publication Critical patent/JPS623918A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/76—Measuring, controlling or regulating

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To obtain a molded part, which has favorable dimensional accuracy, surface roughness and the like by a method wherein a detecting means of the predetermined shifted position in the direction for opening of a moving mold and a controlling means to control a driving means and an injecting means so as to dispose the gas generated from plastic. CONSTITUTION:Upon the receipt of a detection signal from a positional detector 14, a degassing control unit 13 sends a stop signal to a mold opening and closing control unit 133 so as to control a solenoid proportioning valve 9 and a mold opening and closing solenoid valve 10 to close. As a result, the shifting of a movable mold 4 is stopped and a slight clearance P is produced between a stationary mold 2 and the movable mold 4 so as to allow the gas generated from thermosetting resin to escape outside. After the predetermined period of time, the movable mold 4 is shifted rightwards by means of a piston 81 so as to close the molds. After that, an injection device 7 is controlled by an injection control unit 131 so as to inject the thermosetting resin again.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明はプラスチックの射出成形装置、特に熱硬化性樹
脂等ガス発生を伴う樹脂の射出成形装置に慮する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention is directed to an injection molding apparatus for plastics, particularly for injection molding apparatuses for resins such as thermosetting resins that generate gas.

（従来の技術） 射出成形装置では、固定金型に対して可動金型を移動さ
せて、型開した後、固定金型と可動金型とによって形成
される射出成形キャビティ内に射出シリンダからプラス
チックが射出制御されて注入される。そして、とのプラ
スチックは射出成形キｙビてイ内で所定の形状に成形さ
れる。(Prior art) In an injection molding device, a movable mold is moved relative to a fixed mold, and after the mold is opened, plastic is injected from an injection cylinder into an injection molding cavity formed by the fixed mold and the movable mold. is injected under injection control. The plastic is then molded into a predetermined shape in an injection molding machine.

（発明が解決しようとする問題点） ところで、射出成形装置でプラスチックを射出成形する
場合、射出成形キャビティ内においてプラスチックから
ガスが発生する場合がある。特に熱硬化性樹脂を射出成
形する場合、前述のように固定金型と可動金型を型閉し
た後、射出成形キャビティ内に熱硬化性樹脂を射出制御
を行いながら形キャビティ内の熱硬化性樹脂を加熱した
場合。(Problems to be Solved by the Invention) By the way, when plastic is injection molded using an injection molding apparatus, gas may be generated from the plastic in the injection molding cavity. In particular, when injection molding thermosetting resin, after the fixed mold and movable mold are closed as described above, the thermosetting resin is injected into the injection molding cavity while being controlled. When the resin is heated.

熱硬化性樹脂が化学反応をおこし、ガスが発生す充填部
分が生じてしまう。従って、形成品に寸法の狂い等が生
じ、良好な成形品が得られないという問題点がある。The thermosetting resin causes a chemical reaction, creating a filled area where gas is generated. Therefore, there is a problem that dimensional deviations occur in the molded product, making it impossible to obtain a good molded product.

目 本発明の濶′的は寸法精度２表面あらさ等が良好な成形
品を得るととができる射出成形装置を提供することにあ
る。An object of the present invention is to provide an injection molding apparatus that can produce molded products with good dimensional accuracy, surface roughness, etc.

（問題点を解決するための手段） 本発明は、固定金型と、この固定金型に対して進退自在
に設けられ、固定金型とともに射出成形用キャピテイを
形成する移動金型と、この移動金型を移動させるための
駆動手段と、射出成形用キャビティに樹脂を射出するた
めの射出手段とを備えた射出晶形装置において、移動金
型の型開方向で所定の移動位置を検出する位置検出手段
と、駆動手段と射出手段とを制御する制御手段とを有し
。(Means for Solving the Problems) The present invention includes a fixed mold, a movable mold that is provided to be movable forward and backward with respect to the fixed mold and forms an injection molding cavity together with the fixed mold, and a movable mold that is movable. Position detection for detecting a predetermined movement position of a movable mold in the mold opening direction in an injection crystal molding device equipped with a driving means for moving a mold and an injection means for injecting resin into an injection molding cavity. and control means for controlling the drive means and the injection means.

この制御手段は樹脂を射出成形する途中で、射出手段か
ら射出を中断し、駆動手段によって移動金型を型開方向
に移動させて２位置検出手段が移動金型の所定移動位置
を検知すると、移動金型の移動を停止させ、予め定めら
れた時間の後、再び移動金型を駆動手段によって型閉方
向に移動させ。This control means interrupts injection from the injection means during injection molding of resin, moves the movable mold in the mold opening direction by the driving means, and when the two-position detection means detects a predetermined movement position of the movable mold, The movement of the movable mold is stopped, and after a predetermined time, the movable mold is again moved in the mold closing direction by the driving means.

型閉完了後、再び射出手段から樹脂を射出する制御機能
を備えていることを特徴とする射出成形装置である。This injection molding apparatus is characterized by having a control function for injecting resin from the injection means again after the mold has been closed.

（実施例） 以下本発明について実施例によって説明する。(Example) The present invention will be explained below with reference to Examples.

第１図を参照して、ダイパー（図示せず）には固定フラ
ナン１が固定されており、この固定プラテン１の一面上
には固定金型２が固着されている。Referring to FIG. 1, a fixed flannel 1 is fixed to a dieper (not shown), and a fixed mold 2 is fixed to one surface of the fixed platen 1.

一方、ダイパーには可動プラテン３が摺動可動に取シ付
けられており、この可動プラテン３の一面上には可動金
型４が固着されている。固定金型２の中央部には熱硬化
性樹脂を注入ζ射出）するためのスプール５が形成され
・このスプール５は固定金型２と可動金型４とによって
形成される射出成形用キャビティ６に連通ずるとともに
固定プラテン１を貫通して、射出装置７の先端に接続さ
れている。そして、この射出装置７から射出成形用キャ
ビティ６内に熱硬化性樹脂が注入される。On the other hand, a movable platen 3 is slidably attached to the dieper, and a movable mold 4 is fixed on one surface of the movable platen 3. A spool 5 for injecting and injecting thermosetting resin is formed in the center of the fixed mold 2. This spool 5 is connected to an injection molding cavity 6 formed by the fixed mold 2 and the movable mold 4. It passes through the fixed platen 1 and is connected to the tip of the injection device 7. Then, thermosetting resin is injected into the injection molding cavity 6 from this injection device 7.

可動プラテン３には型開閉用シリンダ装置８のピストン
８１が連結されている。シリンダ装置８のシリンダ８２
はピストン８１によって第１の室８２ａと第２の室８２
ｂに分割されている。第１の室８２ａは電磁比例弁９を
介して型開閉用電磁弁１０に連結されており、一方、第
２の室８２ｂは直接型開閉用電磁弁１０に連結されてい
る。型開閉用電磁弁１０には油圧配管１１が連結されて
おシ、さらにこの型開閉用電磁弁１０は排出口１２に連
結されている。A piston 81 of a mold opening/closing cylinder device 8 is connected to the movable platen 3. Cylinder 82 of cylinder device 8
The first chamber 82a and the second chamber 82 are opened by the piston 81.
It is divided into b. The first chamber 82a is connected to the mold opening/closing solenoid valve 10 via the electromagnetic proportional valve 9, while the second chamber 82b is directly connected to the mold opening/closing solenoid valve 10. A hydraulic pipe 11 is connected to the mold opening/closing solenoid valve 10, and the mold opening/closing solenoid valve 10 is further connected to a discharge port 12.

この射出成形装置は後述する射出制御ユニットを備えて
いる。可動金型４の所定移動位置を検出するための位置
検出器１４が可動金型４の移動通路に近接して配置され
ておシ、この位置検出器＄７に接続され、型開閉制御ユ
ニット１３３は型開閉用電磁弁１０及び電磁比例弁９に
接続されている。This injection molding apparatus is equipped with an injection control unit which will be described later. A position detector 14 for detecting a predetermined movement position of the movable mold 4 is disposed close to the movement path of the movable mold 4, and is connected to this position detector $7, and is connected to the mold opening/closing control unit 133. is connected to the mold opening/closing solenoid valve 10 and the solenoid proportional valve 9.

次に上述した射出成形装置の動作について、第１図、第
２図（ａ）〜（Ｃ）、及び第３図（ａ）　ｅ　（ｂ）を
参照して説明する。Next, the operation of the injection molding apparatus described above will be explained with reference to FIG. 1, FIGS. 2(a) to (C), and FIGS. 3(a) and (b).

射出成形を行う場合、まず、型開閉制御ユニット１３３
によって型開閉用電磁弁１０及び電磁比例弁９が開閉制
御される。これによって、油圧配管１１は型開閉用電磁
弁１０．電磁比例弁９を介してシリンダ８２の第１の室
８２ａと連結される７一方、第２の室８ｂは型開閉電磁
弁１０を介して排出口１２に連結される。従ってシリン
ダ装置８は油圧によってピストン８１が右方向に移動し
。When performing injection molding, first, the mold opening/closing control unit 133
The mold opening/closing solenoid valve 10 and the solenoid proportional valve 9 are controlled to open and close. As a result, the hydraulic piping 11 is connected to the mold opening/closing solenoid valve 10. The first chamber 82a of the cylinder 82 is connected via the electromagnetic proportional valve 9, while the second chamber 8b is connected to the discharge port 12 via the mold opening/closing electromagnetic valve 10. Therefore, in the cylinder device 8, the piston 81 moves to the right due to the hydraulic pressure.

その結果、可動プラテン３が右方内へ移動し、固定金型
２と可動金型４とが型閉めされる。なお。As a result, the movable platen 3 moves inward to the right, and the fixed mold 2 and the movable mold 4 are closed. In addition.

射出制御ユニット１３１から射出装置７へ射出指令が送
出されていない状態では、ガス抜ユニット１３２は位置
検出器１４から信号を受けつけない。When the injection control unit 131 does not send an injection command to the injection device 7 , the gas venting unit 132 does not receive a signal from the position detector 14 .

型閉めが終了すると、射出制御ユニット１３１からの指
令によシ射出装置７は第２図（ａ）に示すように熱硬化
性樹脂を射出成形用キャビティ６内に射出速度制御を行
いながら（ｖ、〜ｖ４は射出速度を示す）射出し、射出
成形用キャビティ６内の熱加熱されて、徐々に固化され
る。Ｉ型内圧力は射出開始から徐々に上昇し、射出速度
がｖ２からＶ３ＹＶ２＞Ｖ３）に変化すると、今度は徐
々に低下する。所定の時間が経過すると（熱硬化性樹脂
の射出途中で）、射出制御ユニット１３１は射出装置７
からの射出を一旦停止する（即ち第３図（、）及び０）
に示すように射出速度及び金型内圧力はゼロとニット１
３２及び型開閉制御ユニッｌ−１３３に連絡する。型開
閉制御ユニット１３３はこの連絡を受けると、型開閉用
電磁弁１０及び電磁比例弁９室８２ｂに連結し、第１の
室８２ａを電磁比例弁９及び型開閉電磁弁１０を介して
、排出口１２に連結する。従ってシリンダ装置８は油圧
によってピストン８１が左方向に移動し、可動金型４を
左方向に移動させ、型開を開始する。この型開間６始時
点において、第３図（、）及び（ｂ）に示すように射出
成形キャビティ６内の熱硬化性樹脂の先端部は射出成形
キャビティ６の最深部に達してはいない。When the mold closing is completed, the injection device 7 in accordance with the command from the injection control unit 131 injects the thermosetting resin into the injection molding cavity 6 while controlling the injection speed (v , ~v4 indicates the injection speed), the injection molding cavity 6 is heated and gradually solidified. The pressure inside mold I gradually increases from the start of injection, and when the injection speed changes from v2 to V3YV2>V3), it gradually decreases. When a predetermined period of time has elapsed (during injection of the thermosetting resin), the injection control unit 131 controls the injection device 7.
Temporarily stop the injection from (i.e., Fig. 3 (,) and 0)
As shown in the figure, the injection speed and mold pressure are zero and knit 1.
32 and mold opening/closing control unit l-133. Upon receiving this notification, the mold opening/closing control unit 133 connects the mold opening/closing solenoid valve 10 and the nine solenoid proportional valve chambers 82b, and opens the first chamber 82a via the solenoid proportional valve 9 and the mold opening/closing solenoid valve 10 to drain the first chamber 82a. Connected to outlet 12. Therefore, in the cylinder device 8, the piston 81 moves to the left by hydraulic pressure, moves the movable mold 4 to the left, and starts opening the mold. At the beginning of this mold opening 6, the tip of the thermosetting resin in the injection molding cavity 6 has not reached the deepest part of the injection molding cavity 6, as shown in FIGS. 3(a) and 3(b).

可動プラテン３が型開方向に移動して、所定の移動位置
まで来ると（即ち実質的に可動金型４が所定の移動位置
まで来ると）２位置検出器１４によって検出され９位置
検出器１４からの検知信号がガス抜制御ユニット１３２
に送られる。一方。When the movable platen 3 moves in the mold opening direction and reaches a predetermined movement position (that is, when the movable mold 4 substantially reaches a predetermined movement position), it is detected by the 2-position detector 14 and the 9-position detector 14 The detection signal from the degassing control unit 132
sent to. on the other hand.

前述のようにガス抜制御ユニット１３２が射出制御ユニ
ット１３１からの停止信号を受けている場合には、ガス
抜制御ユニット１３２は位置検出器１４からの信号を受
けつける。ガス抜制御ユニット１３２は位置検出器１４
からの検出信号を受けると、型開閉制御ユニット１３３
に停止信号を送る。型開閉制御ユニット１３３は電磁比
例弁９及び型開閉電磁弁１０を閉じるよう制御する。そ
の結果シリンダ装置８のぎストン８１は移転を停止する
。即ち可動金型４の移動は停止する（第２図（Ｃ）に型
開量を示し、との型開量は０．１〜Ｑ、　３　ｍｍの大
きさである。）。その結果第３図（、）に示すように固
定金型２と可動金型４との間にわずかのすきま（Ｐで示
す、０．１〜０．３Ｐｍ　（以下エアベントド呼ぶ））
が生じる。このエアベントによって熱硬化性樹脂から生
じたガスが外部へ排出される。As described above, when the gas vent control unit 132 receives the stop signal from the injection control unit 131, the gas vent control unit 132 receives the signal from the position detector 14. The degassing control unit 132 is the position detector 14
Upon receiving the detection signal from the mold opening/closing control unit 133
send a stop signal to The mold opening/closing control unit 133 controls the solenoid proportional valve 9 and the mold opening/closing solenoid valve 10 to close. As a result, the piston 81 of the cylinder device 8 stops moving. That is, the movement of the movable mold 4 is stopped (FIG. 2(C) shows the mold opening amount, and the mold opening amount is 0.1 to Q, 3 mm). As a result, as shown in Figure 3 (, ), there is a slight gap between the fixed mold 2 and the movable mold 4 (denoted by P, 0.1 to 0.3 Pm (hereinafter referred to as air bent)).
occurs. Gas generated from the thermosetting resin is discharged to the outside by this air vent.

位置検出器１４からの検知信号を受けて、所定時間経過
の後（ガス抜制御ユニット１３２に内蔵されているタイ
マによって計測される。）、ガス抜制御ユニット１３２
から型開閉制御ユニット１３３にタイムアツプ信号が送
出され、これによって型開閉制御ユニット１３３は電磁
比例弁９及び型開閉電磁弁１０を開閉制御して、油圧配
管１１が型開閉電磁弁１０及び電磁比例弁９を介してシ
リンダ装置８の第１の室８２ａと連結され。Upon receiving the detection signal from the position detector 14, after a predetermined period of time (measured by a timer built into the gas vent control unit 132), the gas vent control unit 132
A time-up signal is sent to the mold opening/closing control unit 133, whereby the mold opening/closing control unit 133 controls the opening/closing of the electromagnetic proportional valve 9 and the mold opening/closing electromagnetic valve 10, so that the hydraulic piping 11 is connected to the mold opening/closing electromagnetic valve 10 and the electromagnetic proportional valve. It is connected to the first chamber 82a of the cylinder device 8 via 9.

一方、第２の室８２ｂは型開閉電磁弁１０を介して排出
口１２に連結される。その結果、ピストン８１によって
可動金型４は右方向へ移動し、型閉めされる。型閉めが
完了すると、射出制御ユニット１３１によって射出装置
７が制御されて、射出装置７は射出速度を制御しながら
（射出速度ｖ４）熱硬化樹脂を再び射出する。射出装置
７からの射出によって金型内圧力は再び徐々に上昇する
。On the other hand, the second chamber 82b is connected to the discharge port 12 via the mold opening/closing solenoid valve 10. As a result, the movable mold 4 is moved to the right by the piston 81 and the mold is closed. When the mold closing is completed, the injection control unit 131 controls the injection device 7, and the injection device 7 injects the thermosetting resin again while controlling the injection speed (injection speed v4). Due to the injection from the injection device 7, the pressure inside the mold gradually increases again.

熱硬化性樹脂が射出終了すると、射出成形装置は所定の
時間保圧制御される（第２図（ｂ）に示すように金型内
圧力はＰｌ、　Ｐ、２　、　Ｐ３と段階的に低下する）
。保圧制御が終了すると、型開閉制御ユニット１３３に
よって電磁比例弁９及び型開閉電磁弁１０が制御されて
、シリンダ装置８のピストン８１が左方向に移動して、
型開が行われる（第３図（ａ）に破線で示す位置に可動
金型４が移動する。）。When the injection of the thermosetting resin is completed, the injection molding device is controlled to hold pressure for a predetermined period of time (as shown in Figure 2 (b), the pressure inside the mold decreases in stages from Pl, P, 2, P3). )
. When the pressure holding control is completed, the mold opening/closing control unit 133 controls the electromagnetic proportional valve 9 and the mold opening/closing electromagnetic valve 10, and the piston 81 of the cylinder device 8 moves to the left.
The mold is opened (the movable mold 4 moves to the position shown by the broken line in FIG. 3(a)).

出器１４からの信号を受けつけない。The signal from the output device 14 is not accepted.

熱硬化性樹脂から生じたガスの排出時において。When exhausting gas generated from thermosetting resin.

射出装置７は停止しており、即ち射出速度及び射出圧力
はゼロとなっておシ、かつ熱硬化性樹脂の表面は固化し
ている。一方、エアベントの大きさは０．１〜０．３訂
であるから、射出成形キャビティ６からガスのみが放出
され、熱硬化性樹脂が放出されることはない。The injection device 7 is stopped, that is, the injection speed and injection pressure are zero, and the surface of the thermosetting resin is solidified. On the other hand, since the size of the air vent is 0.1 to 0.3, only gas is released from the injection molding cavity 6, and the thermosetting resin is not released.

このように、熱硬化性樹脂の射出成形の途中で熱硬化性
樹脂から生じるガスを放出しているから。This is because gas generated from the thermosetting resin is released during injection molding of the thermosetting resin.

射出成形キャビティ７に未充填部が生じることはない。No unfilled portions occur in the injection molding cavity 7.

即ち射出成形キャビティ７内に万遍なく熱硬化性樹脂が
充填されるから９寸法精度及び表面が良好となる・ （発明の効果） 以上説明したように本発明の射出成形装置によれば、射
出成形途中で、プラスチックから生じるガスを外部に放
出するようにしたから射出成形キャビティにプラスチッ
クが万遍なく充填され１寸法精度及び表面が良好となる
利点がある。That is, since the injection molding cavity 7 is evenly filled with the thermosetting resin, 9 dimensional accuracy and surface quality are improved. (Effects of the Invention) As explained above, according to the injection molding apparatus of the present invention, Since the gas generated from the plastic is released to the outside during the molding process, the injection molding cavity is evenly filled with the plastic, which has the advantage of improving dimensional accuracy and surface quality.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明による射出成形装置を概略的に示す図、
第２図（ａ）　、　（ｂ）及び（ｃ）はそれぞれ射出速
度。 金型内圧力及び型開量を示す図、第３図（ａ）は射出成
形途中での射出成形キャビティに注入された熱硬化性樹
脂の位置及びエアベント（すきま）の大きさを示す図、
第３図（ｂ）は射出工程における熱硬化性樹脂の位置を
射出速度（ｖ、〜ｖ４）に応じて示す図である。 １・・・固定プラテン、２・・・固定金型、３・・・可
動プラテン、４・・・可動金型、５・・・スゾール、６
・・・射出成形キャビティ、７・・・射出装置、８・・
・シリンダ装置、９・・・電磁比例弁、１０・・・型開
閉用電磁弁・１１・・・油圧油管、１２・・・排出０．
１３・・・射出成形機制御装置、１４・・・位置検出器
。FIG. 1 is a diagram schematically showing an injection molding apparatus according to the present invention;
Figures 2 (a), (b) and (c) show the injection speeds, respectively. A diagram showing the pressure inside the mold and the opening amount of the mold, Figure 3 (a) is a diagram showing the position of the thermosetting resin injected into the injection molding cavity during injection molding and the size of the air vent (gap),
FIG. 3(b) is a diagram showing the position of the thermosetting resin in the injection process according to the injection speed (v, to v4). 1... Fixed platen, 2... Fixed mold, 3... Movable platen, 4... Movable mold, 5... Susol, 6
... Injection molding cavity, 7... Injection device, 8...
- Cylinder device, 9... Solenoid proportional valve, 10... Solenoid valve for mold opening/closing, 11... Hydraulic oil pipe, 12... Discharge 0.
13... Injection molding machine control device, 14... Position detector.

Claims (1)

【特許請求の範囲】[Claims] １、固定金型と、該固定金型に対して進退自在に設けら
れ、前記固定金型とともに射出成形用キャビティを形成
する移動金型と、該移動金型を移動させるための駆動手
段と、前記射出成形キャビティに樹脂を射出するための
射出手段とを備えた射出成形装置において、前記移動金
型の型開方向で所定の移動位置を検出する位置検出手段
と、前記駆動手段と前記射出手段とを制御する制御手段
とを有し、前記制御手段は前記樹脂を射出成形する途中
で、前記射出手段からの射出を中断し、前記駆動手段に
よって前記移動金型を型開方向に移動させて、前記位置
検出手段が前記移動金型の所定移動位置を検知すると、
前記移動金型の移動を停止させ、予め定められた時間の
後、再び前記移動金型を前記駆動手段によって型閉方向
に移動させ、型閉完了の後、再び前記射出手段から樹脂
を射出する制御機能を備えていることを特徴とする射出
成形装置。1. A fixed mold, a movable mold that is provided to be movable forward and backward with respect to the fixed mold and forms an injection molding cavity together with the fixed mold, and a driving means for moving the movable mold; An injection molding apparatus comprising: an injection means for injecting resin into the injection molding cavity; a position detection means for detecting a predetermined movement position of the movable mold in a mold opening direction; the driving means; and the injection means. and a control means for controlling the injection molding of the resin, and the control means interrupts injection from the injection means during the injection molding of the resin, and moves the movable mold in the mold opening direction by the driving means. , when the position detection means detects a predetermined movement position of the movable mold,
The movement of the movable mold is stopped, and after a predetermined time, the movable mold is again moved in the mold closing direction by the driving means, and after mold closing is completed, the resin is again injected from the injection means. An injection molding device characterized by being equipped with a control function.
JP14254685A 1985-07-01 1985-07-01 Injection molding equipment Pending JPS623918A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14254685A JPS623918A (en) 1985-07-01 1985-07-01 Injection molding equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14254685A JPS623918A (en) 1985-07-01 1985-07-01 Injection molding equipment

Publications (1)

Publication Number Publication Date
JPS623918A true JPS623918A (en) 1987-01-09

Family

ID=15317861

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14254685A Pending JPS623918A (en) 1985-07-01 1985-07-01 Injection molding equipment

Country Status (1)

Country Link
JP (1) JPS623918A (en)

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