JP2981099B2 - Injection molding machine barrel temperature control method - Google Patents

Injection molding machine barrel temperature control method

Info

Publication number
JP2981099B2
JP2981099B2 JP5332168A JP33216893A JP2981099B2 JP 2981099 B2 JP2981099 B2 JP 2981099B2 JP 5332168 A JP5332168 A JP 5332168A JP 33216893 A JP33216893 A JP 33216893A JP 2981099 B2 JP2981099 B2 JP 2981099B2
Authority
JP
Japan
Prior art keywords
heating
molding machine
injection
injection molding
barrel
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 - Fee Related
Application number
JP5332168A
Other languages
Japanese (ja)
Other versions
JPH07186227A (en
Inventor
寛 菅野
武敏 石川
藤彦 成川
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.)
Shibaura Machine Co Ltd
Original Assignee
Toshiba Machine Co 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 Toshiba Machine Co Ltd filed Critical Toshiba Machine Co Ltd
Priority to JP5332168A priority Critical patent/JP2981099B2/en
Publication of JPH07186227A publication Critical patent/JPH07186227A/en
Application granted granted Critical
Publication of JP2981099B2 publication Critical patent/JP2981099B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】本発明は、射出成形機のバレル温
度すなわち射出されるべき溶融樹脂の温度を制御する方
法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for controlling a barrel temperature of an injection molding machine, that is, a temperature of a molten resin to be injected.

【0002】[0002]

【従来の技術】一般に、射出成形機は、成形品の品質を
安定化するため、そのバレル温度を所定の温度状態に制
御するよう構成されている。
2. Description of the Related Art Generally, an injection molding machine is configured to control its barrel temperature to a predetermined temperature state in order to stabilize the quality of a molded product.

【0003】すなわち、図3において、射出成形機は、
バレル10内に進退且つ回転自在に配設されるスクリュ
12からなり、そしてバレル10の外周面にはそれぞれ
バレルの温度検出手段(熱電対等)14a、14b、1
4cを有するバンドヒータ16a、16b、16cから
なる複数(図示例では3つ)のバレル加熱ゾーンを備え
ている。従って、このように構成された射出成形機は、
各加熱ゾーン16a、16b、16cが、各温度検出手
段14a、14b、14cと、各加熱制御部18a、1
8b、18cと、各開閉器20a、20b、20cと、
そして加熱電源22を介して、それぞれ加熱制御される
よう設定されている。
That is, in FIG. 3, an injection molding machine is
The barrel 10 includes a screw 12 that is rotatably disposed in the barrel 10 so as to advance and retreat, and is provided with barrel temperature detecting means (thermocouples and the like) 14a, 14b, 1
A plurality (three in the illustrated example) of barrel heating zones including band heaters 16a, 16b, and 16c having a 4c are provided. Therefore, the injection molding machine configured as described above is
Each of the heating zones 16a, 16b, and 16c is provided with each of the temperature detecting means 14a, 14b, and 14c,
8b, 18c, each switch 20a, 20b, 20c,
The heating power is set via the heating power supply 22.

【0004】更に詳細には、ホッパ(図示せず)からバ
レル10内へ落下する樹脂原料は、可塑化計量工程中に
おいては、一方では加熱ゾーン16による前記加熱作用
により、他方ではスクリュ12の回転および後退による
混練・発熱および計量作用により、その所定量が計量さ
れると共に、これを所定温度の溶融樹脂に形成し、そし
てこの溶融樹脂が、成形工程中において反転・前進する
スクリュ12のプランジャ作用によりノズル24から金
型(図示せず)内へ射出され、成形品に加工される。
[0004] More specifically, the resin material that falls from the hopper (not shown) into the barrel 10 is rotated by the heating zone 16 on the one hand and the screw 12 on the other hand during the plasticizing and measuring step. A predetermined amount is measured by the kneading, heat generation and metering action due to retraction, and this is formed into a molten resin at a predetermined temperature, and this molten resin is a plunger function of the screw 12 which is reversed and advanced in the molding process. Thus, the resin is injected from the nozzle 24 into a mold (not shown) and processed into a molded product.

【0005】なお、図中の参照符号P1、P2は、それ
ぞれスクリュ12の先端部の前進限(射出完了)および
後退限(計量完了)の位置を示している。すなわち、ス
クリュ12は、両位置P1、P2の間を、可塑化計量工
程中には図示の右側(矢印実線方向)へ移動し、一方射
出工程中には図示の左側(矢印点線方向)へ移動する。
[0005] Reference numerals P1 and P2 in the figure indicate the positions of the forward end (injection completed) and the retreat limit (completion completed) of the tip of the screw 12, respectively. That is, the screw 12 moves between the positions P1 and P2 to the right (illustrated by the solid line) during the plasticizing and weighing process, and moves to the left (in the direction indicated by the dotted arrow) during the injection process. I do.

【0006】[0006]

【発明が解決しようとする課題】しかしながら、前述し
たバレル温度制御方法は、以下に述べるような基本的な
難点を有していた。
However, the above-described barrel temperature control method has the following basic difficulties.

【0007】すなわち、図4において、先ず結論的に説
明すると、従来のバレル温度制御方法においては、その
可塑化計量工程中に計量・貯留される溶融樹脂が、一般
に、曲線t(t1−t2)で表されるような温度分布を
有していた。なお、図4において、スクリュ位置PのP
1(P2)、P2(P1)表示は、スクリュが射出側工
程中において、可塑化計量工程S1時にはP1からP2
へ移動し、一方射出工程S2時にはP2からP1へ移動
することを便宜的に表したものである。
[0007] In other words, the conclusion is first explained in FIG. 4. In the conventional barrel temperature control method, the molten resin measured and stored during the plasticizing and measuring step generally has a curve t (t1-t2). Has a temperature distribution as represented by Note that, in FIG.
1 (P2) and P2 (P1) indicate that during the plasticizing and measuring step S1, the screw is moved from P1 to P2 during the injection side process.
, While moving from P2 to P1 at the time of the injection step S2.

【0008】そこで、前記温度分布tについて説明する
と、先ず、樹脂原料は、スクリュがバレル内を回転しな
がら後退する可塑化計量工程において、一方では加熱ゾ
ーンからのバレルル温度検出手段を介する加熱作用によ
り加熱制御され、他方ではスクリュの後退・混練による
発熱作用によりそれぞれ加熱制御されることは、前述し
た通りである。しかるに、この加熱制御において、スク
リュが後退すると、これに従い、前記加熱作用において
はスクリュの関係位置が変化することから、一方前記発
熱作用においてはスクリュの混練有効長さが短縮するこ
とから、両作用における加熱効果が共に減少する。この
ため、溶融樹脂の温度分布は、前記曲線tに表されてい
るように、前進限位置P1から後退限位置P2へと全般
的に低下する傾向を有する。この低下傾向は、射出量が
多い程、すなわちスクリュの後退長さが長い程、顕著に
なることは明らかである。
The temperature distribution t will now be described. First, in the plasticization measuring step in which the screw retreats while rotating inside the barrel, the resin raw material is heated by the heating action from the heating zone via the barrel temperature detecting means. As described above, the heating is controlled, and the heating is controlled by the heat generated by the retreating and kneading of the screw. However, in this heating control, when the screw retreats, the position of the screw related to the heating action changes accordingly.On the other hand, in the heating action, the kneading effective length of the screw is shortened. At the same time, the heating effect decreases. For this reason, the temperature distribution of the molten resin generally tends to decrease from the forward limit position P1 to the backward limit position P2 as shown by the curve t. It is clear that this tendency to decrease becomes more pronounced as the injection amount increases, that is, as the screw retreat length increases.

【0009】このように、従来のバレル温度制御方法に
おいては、射出溶融樹脂の温度分布に、実際的にはかな
りの温度差が発生していた。そして、このため、成形品
の品質にかなりのバラツキが発生し、そしてこのバラツ
キは、成形品の大きさ、すなわち溶融樹脂の射出量の増
大に従い、益々増大する難点を有していた。
As described above, in the conventional barrel temperature control method, a substantial temperature difference actually occurs in the temperature distribution of the injection molten resin. As a result, the quality of the molded product varies considerably, and the variation has a problem that the quality of the molded product, that is, the injection amount of the molten resin increases, and the variation increases.

【0010】そこで、本発明の目的は、射出溶融樹脂の
温度分布を均一にして、成形品の品質を安定化すること
ができる射出成形機のバレル温度制御方法を提供するこ
とにある。
SUMMARY OF THE INVENTION An object of the present invention is to provide a barrel temperature control method for an injection molding machine capable of stabilizing the quality of a molded product by making the temperature distribution of an injection molten resin uniform.

【0011】[0011]

【課題を解決するための手段】先の目的を達成するため
に、本発明に係る射出成形機のバレル温度制御方法は、
射出側工程がスクリュ後退時の可塑化計量工程とスクリ
ュ前進時の射出工程とからなる射出成形機からなり、前
記射出成形機はそのバレル外周面にそれぞれバレルの温
度検出手段を有する複数のバレル加熱ゾーンを備え、こ
れにより前記各加熱ゾーンが前記温度検出手段を介して
それぞれ加熱制御される射出成形機のバレル温度制御方
法において、射出成形機に成形サイクルに連動するシー
ケンス制御手段を設け、これにより前記各加熱ゾーンを
前記温度検出手段を介する加熱制御とは別に、更に前記
シーケンス制御手段を介して前記射出側工程中の特定の
時間帯に加熱制御することを特徴とする。
In order to achieve the above object, a method of controlling a barrel temperature of an injection molding machine according to the present invention comprises:
The injection-side process includes an injection molding machine including a plasticizing measurement step when the screw is retracted and an injection step when the screw is advanced, and the injection molding machine includes a plurality of barrel heating units each having a barrel temperature detecting unit on the outer peripheral surface of the barrel. A barrel temperature control method for an injection molding machine in which each of the heating zones is individually heated and controlled via the temperature detection means, wherein the injection molding machine is provided with sequence control means interlocked with a molding cycle. In addition to the heating control through the temperature detecting means, the heating control of each of the heating zones is performed through a specific time zone during the injection-side process through the sequence controlling means.

【0012】この場合、射出側工程中の特定時間帯は、
射出工程の所定時間経過後から始まり、後続の可塑化計
量工程の所定時間経過時に終了するよう設定することが
できる。
In this case, the specific time zone during the injection side process is as follows:
It can be set to start after a lapse of a predetermined time in the injection step and end when a predetermined time in the subsequent plasticizing and measuring step.

【0013】また、射出側工程中の特定時間帯は、各加
熱ゾーン毎にそれぞれ別個に設定することがでると共
に、シーケンス制御手段による加熱制御についても、各
加熱ゾーン毎にそれぞれ別個に行うよう設定することが
できる。
Further, the specific time zone during the injection-side process can be set separately for each heating zone, and the heating control by the sequence control means can be set to be performed separately for each heating zone. can do.

【0014】[0014]

【作用】本発明によれば、バレル加熱ゾーンは、温度検
出手段を介する従来の加熱作用とは別に、シーケンス制
御手段を介する射出側工程中での特定時間帯の新たな加
熱作用により、追加補償的に加熱制御される。従って、
本発明によれば、従来の加熱作用(および混練発熱作
用)の難点、すなわち加熱効果の低減および応答時間の
遅れに起因する溶融樹脂温度の低下(温度差)が、追加
加熱作用により補償的に補充されるので、射出溶融樹脂
温度の温度分布が均一化され、成形品の品質が安定化す
る。
According to the present invention, the barrel heating zone is additionally compensated for by a new heating action in a specific time zone in the injection side process via the sequence control means, separately from the conventional heating action via the temperature detection means. The heating is controlled. Therefore,
According to the present invention, the difficulty of the conventional heating operation (and the kneading heat generation effect), that is, the reduction of the molten resin temperature (temperature difference) caused by the reduction of the heating effect and the delay of the response time is compensated by the additional heating effect. Since it is replenished, the temperature distribution of the injection molten resin temperature is made uniform, and the quality of the molded product is stabilized.

【0015】[0015]

【実施例】次に、本発明に係る射出成形機のバレル温度
制御方法の実施例につき、添付図面を参照しながら以下
詳細に説明する。なお、説明の便宜上、図3および図4
に示す従来の構造と同一の構成部分には同一の参照符号
を付し、詳細な説明は省略する。
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of a barrel temperature control method for an injection molding machine according to the present invention. 3 and 4 for convenience of explanation.
The same reference numerals are given to the same components as those in the conventional structure shown in FIG.

【0016】図1において、先ず、本発明に係るバレル
温度制御方法の基本的構成は、前述した従来の構成(図
3)と同一である。従って、重複するが、再び簡単に説
明すると、射出成形機は、バレル10内に進退且つ回転
自在に配設されるスクリュ12からなり、そしてバレル
10の外周面には、それぞれバレルの温度検出手段14
a、14b、14cを有するバンドヒータ16a、16
b、16cからなるバレル加熱ゾーンを備え、そしてこ
れにより各加熱ゾーン16a、16b、16cが、各温
度検出手段14a、14b、14cと、各加熱制御部1
8a、18b、18cと、各開閉器20a、20b、2
0cと、および加熱電源22を介してそれぞれ加熱制御
されるよう構成されている。なお、図中、参照符号P
1、P2はスクリュ12先端部の前進限および後進限の
位置を示し、参照符号24は溶融樹脂の射出ノズルを示
す。
In FIG. 1, first, the basic configuration of the barrel temperature control method according to the present invention is the same as the above-described conventional configuration (FIG. 3). Therefore, to briefly explain again, the injection molding machine includes a screw 12 which is rotatably disposed in the barrel 10 so as to advance and retreat, and is provided on the outer peripheral surface of the barrel 10 with means for detecting the temperature of the barrel. 14
band heaters 16a, 16 having a, 14b, 14c
b, 16c, and each heating zone 16a, 16b, 16c is provided with a respective temperature detecting means 14a, 14b, 14c and a respective heating control unit 1.
8a, 18b, 18c and switches 20a, 20b, 2
0c and heating power via the heating power supply 22. It should be noted that in the figure, the reference symbol P
Reference numerals 1 and P2 indicate positions of the forward end and the backward end of the screw 12 tip, and reference numeral 24 indicates a molten resin injection nozzle.

【0017】しかるに、本発明においては、前記構成に
おいて、射出成形機は、更に成形サイクルに連動するシ
ーケンス制御手段26を設け、そして前記各加熱ゾーン
16a、16b、16cが、温度検出手段14a、14
b、14cを介する前記加熱制御とは別に、更に前記シ
ーケンス制御手段26を介して射出側工程中の特定の時
間帯に、同じく各開閉器20a、20b、20cと、お
よび加熱電源22を介して、追加補償的に加熱制御され
るよう構成されている。
However, according to the present invention, in the above configuration, the injection molding machine further includes sequence control means 26 which is linked to a molding cycle, and the heating zones 16a, 16b, 16c are provided with temperature detecting means 14a, 14c.
In addition to the heating control via the b and 14c, also at a specific time zone during the injection side process via the sequence control means 26, similarly via each of the switches 20a, 20b and 20c and the heating power supply 22 , And is configured to perform heating control in an additional compensation manner.

【0018】すなわち、図2において、溶融樹脂の温度
分布は、バレル加熱ゾーンが温度検出手段を介して加熱
制御される従来の加熱作用(および混練発熱作用)にお
いては、前述したように、例えば曲線tに表されるよう
な、全般的に図示するように右下がりの傾向に設定され
る。しかし、この場合、加熱ゾーンは、更にシーケンス
制御手段26を介して射出側工程中の特定時間帯、すな
わち射出工程S2の所定時間T1の経過後から始まり、
後続の可塑化計量工程S1の所定時間T2経過時に終了
する時間帯T3の間に、強制的に加熱制御されるよう構
成されている。
That is, in FIG. 2, the temperature distribution of the molten resin is, for example, as described above in the conventional heating operation (and the kneading heat generation operation) in which the barrel heating zone is controlled to be heated through the temperature detecting means. As shown in the figure, it is set to a downward-sloping tendency as generally shown in FIG. However, in this case, the heating zone further starts after a lapse of a predetermined time T1 in the injection step, that is, after a predetermined time T1 in the injection step S2 via the sequence control means 26,
The heating is forcibly controlled during a time period T3, which ends when a predetermined time T2 of the subsequent plasticizing and measuring step S1 has elapsed.

【0019】従って、溶融樹脂の温度分布は、従来の曲
線tの有する不都合、すなわち加熱不足分Δtを追加補
償的に解消して、平坦な曲線t´となる。なお、特定時
間帯T3の後の加熱制御は、再び従来の温度検出手段を
介する加熱作用に継続することは勿論である。また、シ
ーケンス制御手段26を介する加熱制御においては、好
適には、特定時間帯は各加熱ゾーン毎にそれぞれ別個に
設定し、そして加熱制御は各加熱ゾーン毎にそれぞれ別
個に行なうよう構成する。これは、成形樹脂の種類やス
クリュの性能に対応して、例えばスクリュの関係位置に
おける樹脂材料の可塑化熱量や混練・発熱量を適切に制
御するためである。
Therefore, the temperature distribution of the molten resin becomes a flat curve t 'by additionally compensating for the disadvantage of the conventional curve t, that is, the insufficient heating Δt. Note that the heating control after the specific time zone T3 naturally continues to the heating operation via the conventional temperature detecting means again. Also, in the heating control via the sequence control means 26, preferably, the specific time zone is set separately for each heating zone, and the heating control is performed separately for each heating zone. This is for appropriately controlling, for example, the amount of plasticizing heat and the amount of kneading / heating of the resin material at the relevant positions of the screw in accordance with the type of molding resin and the performance of the screw.

【0020】このように、本発明においては、バレル加
熱ゾーンが、従来の温度検出手段を介する加熱作用とは
別に、更にシーケンス制御手段を介する射出側工程中で
の特定時間帯の加熱作用によって、追加補償的に加熱制
御される。従って、本発明によれば、従来の温度制御方
法における難点ーすなわち、加熱効果低減および応答時
間遅れに起因する溶融樹脂温度の低下(温度差)が補償
的に補充され、従って射出溶融樹脂温度の温度分布が均
一化され、成形品の品質が安定化する。
As described above, in the present invention, the barrel heating zone is separated from the heating effect via the conventional temperature detecting means, and further by the heating action in a specific time zone during the injection side process via the sequence control means. The heating is controlled in an additional compensation manner. Therefore, according to the present invention, the difficulty in the conventional temperature control method-that is, the decrease in the molten resin temperature (temperature difference) due to the reduction in the heating effect and the delay in the response time is compensated for, and therefore the injection molten resin temperature is reduced. The temperature distribution is made uniform and the quality of the molded product is stabilized.

【0021】以上、本発明の好適な実施例について説明
したが、本発明は前記実施例に限定されることなく、そ
の精神を逸脱しない範囲内において多くの改良変更が可
能である。
Although the preferred embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and many modifications and changes can be made without departing from the spirit of the present invention.

【0022】[0022]

【発明の効果】以上説明したように、本発明に係る射出
成形機のバレル温度制御方法は、射出側工程がスクリュ
後退時の可塑化計量工程とスクリュ前進時の射出工程と
からなる射出成形機からなり、前記射出成形機はそのバ
レル外周面にそれぞれバレルの温度検出手段を有する複
数のバレル加熱ゾーンを備え、これにより前記各加熱ゾ
ーンが前記温度検出手段を介してそれぞれ加熱制御され
る射出成形機のバレル温度制御方法において、射出成形
機に成形サイクルに連動するシーケンス制御手段を設
け、これにより前記各加熱ゾーンを、前記温度検出手段
を介する加熱制御とは別に、更に前記シーケンス制御手
段を介して前記射出側工程中の特定の時間帯に加熱制御
するよう構成したことにより、従来の温度検出手段によ
る温度制御方法において発生していた溶融樹脂温度の低
下(温度差)を、新たに設けたシーケンス制御手段によ
る加熱作用で追加補償することができ、これにより射出
溶融樹脂温度の温度分布が極めて良好に均一化される。
従って、射出成形品の品質を確実に安定化することがで
きる。
As described above, the barrel temperature control method for an injection molding machine according to the present invention provides an injection molding machine in which the injection-side step includes a plasticizing measurement step when the screw is retracted and an injection step when the screw is advanced. The injection molding machine is provided with a plurality of barrel heating zones each having a barrel temperature detecting means on the outer peripheral surface of the barrel, whereby each of the heating zones is heated and controlled via the temperature detecting means. In the barrel temperature control method of the machine, the injection molding machine is provided with sequence control means interlocked with a molding cycle, whereby each heating zone is separated from the heating control via the temperature detection means, and further through the sequence control means. Thus, the heating control is performed during a specific time period during the injection side process, so that the temperature control method using the conventional temperature detecting means can be performed. The decrease in temperature of the molten resin (temperature difference) that has occurred due to the above can be additionally compensated for by the heating effect of the newly provided sequence control means, whereby the temperature distribution of the temperature of the injected molten resin can be made extremely uniform. You.
Therefore, the quality of the injection molded product can be reliably stabilized.

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

【図1】本発明に係る射出成形機のバレル温度制御方法
の一実施例を示すブロック制御系統図である。
FIG. 1 is a block control system diagram showing one embodiment of a barrel temperature control method for an injection molding machine according to the present invention.

【図2】図1におけるバレル温度制御方法による溶融樹
脂の温度分布を示す説明図である。
FIG. 2 is an explanatory diagram showing a temperature distribution of a molten resin by the barrel temperature control method in FIG.

【図3】従来の射出成形機のバレル温度制御方法を実施
するブロック制御系統図である。
FIG. 3 is a block control system diagram for implementing a conventional barrel temperature control method for an injection molding machine.

【図4】図3におけるバレル温度制御方法による溶融樹
脂の温度分布を示す説明図である。
4 is an explanatory diagram showing a temperature distribution of a molten resin by the barrel temperature control method in FIG.

【符号の説明】[Explanation of symbols]

10 バレル 12 スクリュ 14a、14b、14c 温度検出手段(熱電対) 16a、16b、16c バンドヒータ(加熱ゾーン) 18a、18b、18c 加熱制御部 20a、20b、20c 開閉器 22 加熱電源 24 ノズル 26 シーケンス制御手段 Reference Signs List 10 barrel 12 screw 14a, 14b, 14c temperature detecting means (thermocouple) 16a, 16b, 16c band heater (heating zone) 18a, 18b, 18c heating control unit 20a, 20b, 20c switch 22 heating power supply 24 nozzle 26 sequence control means

───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平4−45912(JP,A) 特開 昭62−249723(JP,A) 特開 平4−148912(JP,A) 実開 平3−15120(JP,U) (58)調査した分野(Int.Cl.6,DB名) B29C 45/72 - 45/78 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-45912 (JP, A) JP-A-62-249723 (JP, A) JP-A-4-148912 (JP, A) 15120 (JP, U) (58) Field surveyed (Int. Cl. 6 , DB name) B29C 45/72-45/78

Claims (4)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 射出側工程がスクリュ後退時の可塑化計
量工程とスクリュ前進時の射出工程とからなる射出成形
機からなり、前記射出成形機はそのバレル外周面にそれ
ぞれバレルの温度検出手段を有する複数のバレル加熱ゾ
ーンを備え、これにより前記各加熱ゾーンが前記温度検
出手段を介してそれぞれ加熱制御される射出成形機のバ
レル温度制御方法において、 射出成形機に成形サイクルに連動するシーケンス制御手
段を設け、これにより前記各加熱ゾーンを前記温度検出
手段を介する加熱制御とは別に、更に前記シーケンス制
御手段を介して前記射出側工程中の特定の時間帯に加熱
制御することを特徴とする射出成形機のバレル温度制御
方法。
1. An injection molding machine comprising: an injection molding machine comprising a plasticization measuring step at the time of screw retreat and an injection step at the time of screw advancement, wherein said injection molding machine has a barrel temperature detecting means on its outer peripheral surface. A plurality of barrel heating zones having a plurality of barrel heating zones, wherein each of the heating zones is controlled to be heated via the temperature detecting means. A sequence control means interlocked with a molding cycle of the injection molding machine. In addition to the heating control via the temperature detecting means, the heating control of each of the heating zones is carried out at a specific time during the injection side process via the sequence control means. A method of controlling the barrel temperature of a molding machine.
【請求項2】 射出側工程中の特定時間帯は、射出工程
の所定時間経過後から始まり、後続の可塑化計量工程の
所定時間経過時に終了するよう設定してなる請求項1記
載の射出成形機のバレル温度制御方法。
2. The injection molding according to claim 1, wherein the specific time period in the injection side process is set so as to start after a lapse of a predetermined time in the injection process and to end when a predetermined time in the subsequent plasticizing and measuring process. Machine barrel temperature control method.
【請求項3】 射出側工程中の特定時間帯は、各加熱ゾ
ーン毎にそれぞれ別個に設定してなる請求項1または2
記載の射出成形機のバレル温度制御方法。
3. The specific time zone during the injection-side process is set separately for each heating zone.
A barrel temperature control method for an injection molding machine as described in the above.
【請求項4】 シーケンス制御手段による加熱制御は、
各加熱ゾーン毎にそれぞれ別個に行うよう設定してなる
請求項1、2または3記載の射出成形機のバレル温度制
御方法。
4. The heating control by the sequence control means,
4. The method of controlling a barrel temperature of an injection molding machine according to claim 1, wherein the setting is performed separately for each heating zone.
JP5332168A 1993-12-27 1993-12-27 Injection molding machine barrel temperature control method Expired - Fee Related JP2981099B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5332168A JP2981099B2 (en) 1993-12-27 1993-12-27 Injection molding machine barrel temperature control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5332168A JP2981099B2 (en) 1993-12-27 1993-12-27 Injection molding machine barrel temperature control method

Publications (2)

Publication Number Publication Date
JPH07186227A JPH07186227A (en) 1995-07-25
JP2981099B2 true JP2981099B2 (en) 1999-11-22

Family

ID=18251919

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5332168A Expired - Fee Related JP2981099B2 (en) 1993-12-27 1993-12-27 Injection molding machine barrel temperature control method

Country Status (1)

Country Link
JP (1) JP2981099B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6685458B2 (en) 2001-10-11 2004-02-03 Acushnet Company Split metal die assembly with injection cycle monitor
JP5819647B2 (en) * 2011-06-17 2015-11-24 ファナック株式会社 Temperature control device for injection molding machine having feedforward function
JP6363650B2 (en) * 2016-04-14 2018-07-25 ファナック株式会社 Injection molding machine with temperature control jacket

Also Published As

Publication number Publication date
JPH07186227A (en) 1995-07-25

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