JP2000052391A - Method for controlling temperature for injection molding machine - Google Patents
Method for controlling temperature for injection molding machineInfo
- Publication number
- JP2000052391A JP2000052391A JP10225854A JP22585498A JP2000052391A JP 2000052391 A JP2000052391 A JP 2000052391A JP 10225854 A JP10225854 A JP 10225854A JP 22585498 A JP22585498 A JP 22585498A JP 2000052391 A JP2000052391 A JP 2000052391A
- Authority
- JP
- Japan
- Prior art keywords
- time
- temperature
- value
- data
- 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.)
- Pending
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
-
- 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
- B29C45/78—Measuring, controlling or regulating of temperature
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、射出成形機の温度
制御方法に関し、詳しくは射出成形機の射出シリンダ等
の温度設定を制御する方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for controlling a temperature of an injection molding machine, and more particularly to a method for controlling a temperature setting of an injection cylinder of an injection molding machine.
【０００２】[0002]
【従来の技術】従来、射出成形機の温度制御は、通常、
熟練作業者が、定期的に製品を計測して、予め定めてあ
る品質規格値から外れた場合、作業者の経験、ノウハウ
により温度設定値を変更して品質規格値に入る様にして
いた。2. Description of the Related Art Conventionally, temperature control of an injection molding machine is usually performed by
A skilled worker measures the product periodically and, if the quality deviates from a predetermined quality standard value, changes the temperature set value according to the experience and know-how of the worker so as to enter the quality standard value.
【０００３】[0003]
【発明が解決しようとする課題】上記温度制御におい
て、温度設定値に対する適正な補正量の決定は、熟練作
業者の経験、ノウハウによるところが大で、経験の浅い
作業者の場合、製品にバラツキがでるという問題点があ
った。In the above-described temperature control, the determination of an appropriate correction amount for a temperature set value largely depends on the experience and know-how of a skilled worker. There was a problem of coming out.
【０００４】本発明は、上記問題点を解決するためにな
されたものであって、熟練作業者が実施している射出シ
リンダの各ゾーンの温度データの補正を自動的に処理し
て安定した製品を連続して成形することができる射出成
形機の温度制御方法を提供することを課題とする。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is possible to automatically correct the temperature data of each zone of an injection cylinder, which is performed by a skilled worker, and to automatically process the data. It is an object of the present invention to provide a temperature control method for an injection molding machine capable of continuously molding the same.
【０００５】[0005]
【課題を解決するための手段】本発明による射出成形機
の温度制御方法は、射出時間の基準値と、ショット間隔
の計数値の満了時の射出時間の平均値との偏差を求め、
該偏差に対する射出成形機の射出シリンダの各ゾーンの
温度の補正データが入力されているデータテーブルによ
り、各ゾーンの温度データを補正することを特徴として
いる。A temperature control method for an injection molding machine according to the present invention determines a deviation between a reference value of the injection time and an average value of the injection time at the expiration of the count value of the shot interval.
The temperature data of each zone is corrected by a data table in which correction data of the temperature of each zone of the injection cylinder of the injection molding machine with respect to the deviation is input.
【０００６】すなわち、熟練作業者の経験・ノウハウを
データテーブル化して射出成形機のコントローラの中に
あらかじめ入力することにより、熟練作業者が実施して
いる操作を自動的に処理することができる。That is, the operation performed by a skilled worker can be automatically processed by converting the experience and know-how of the skilled worker into a data table and inputting the data table to a controller of the injection molding machine in advance.
【０００７】[0007]
【発明の実施の形態】本発明の実施の形態を実施例に基
づき図面を参照して説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described based on embodiments with reference to the drawings.
【０００８】図１は、本発明による射出成形機の温度制
御を示すフローチャートであり、図２は、射出時間によ
る温度制御を行うコントローラの画面を示す。FIG. 1 is a flowchart showing temperature control of an injection molding machine according to the present invention, and FIG. 2 shows a screen of a controller for performing temperature control by injection time.
【０００９】図１および図２に示すように、まず、射出
成形機の連続成形中において、製品が安定した時期を見
はからって、スタートスイッチ（ｆ２キー）１を押し、
スタート後の初回ショットの射出時間を記憶すると同時
に（ステップＳ１)、射出時間の基準値５へ入力、表示
する（ステップＳ２)。As shown in FIGS. 1 and 2, first, during continuous molding of the injection molding machine, a start time (f2 key) 1 is depressed by checking a time when the product is stabilized.
The injection time of the first shot after the start is stored (step S1), and at the same time, the injection time is input and displayed as the reference value 5 (step S2).
【００１０】連続成形を継続し、スタート開始からのシ
ョット数をショット間隔の計数値７に表示すると同時
に、計数値７がショット間隔の設定値２に達したか否か
を判断する（ステップＳ３)。達しない時は、それまで
のショットの間の射出時間を平均して射出時間の平均値
６へ結果を表示する（ステップＳ４)。The continuous molding is continued, and the number of shots from the start is displayed as the shot interval count value 7, and at the same time, it is determined whether the count value 7 has reached the shot interval set value 2 (step S3). . If it does not reach, the ejection time between shots so far is averaged, and the result is displayed on the average value 6 of the ejection time (step S4).
【００１１】計数値７がショット間隔の設定値２に達す
ると、その時の射出時間の平均値６によって前記基準値
５を新しい射出時間の基準値５に更新する（ステップＳ
５)。When the count value 7 reaches the set value 2 of the shot interval, the reference value 5 is updated to the reference value 5 of the new injection time by the average value 6 of the injection time at that time (step S).
5).
【００１２】ステップＳ２のスタート開始時の射出時間
の基準値５と、ステップＳ５のショット間隔の計数値７
の満了時の射出時間の平均値６の偏差を計算する（ステ
ップＳ６)。The reference value 5 of the injection time at the start of the start in step S2 and the count value 7 of the shot interval in step S5
The deviation of the average value 6 of the injection time at the time of expiration is calculated (step S6).
【００１３】あらかじめ、上記偏差（時間）に対する射
出機シリンダ等の各ゾーンの温度の補正データが＋側温
度補正データ３と−側温度補正データ４に分けて入力さ
れているデータテーブルがコントローラに準備されてい
るので、このデータテーブルより、＋側に偏差がある
か、−側に偏差があるかを射出時間の基準値５と、ショ
ット間隔の計数値７の満了時の射出時間の平均値６との
偏差により自動的に判断し、各ゾーンの温度データを補
正する（ステップＳ７)。なお、データテーブルの補正
データ３，４は、熟練作業者の経験・ノウハウを基に作
成されている。The controller prepares a data table in which the correction data of the temperature of each zone of the injection machine cylinder and the like with respect to the above-mentioned deviation (time) is separately input into the + side temperature correction data 3 and the − side temperature correction data 4. From this data table, the reference value 5 of the ejection time and the average value 6 of the ejection time at the expiration of the count value 7 of the shot interval indicate whether there is a deviation on the + side or a deviation on the − side. Is automatically determined based on the deviation from the above, and the temperature data of each zone is corrected (step S7). The correction data 3 and 4 in the data table are created based on the experience and know-how of a skilled worker.
【００１４】次に、ショット間隔計数カウンターをクリ
アする（ステップＳ８)。射出時間による温度制御を継
続する場合は、ステップＳ２に戻り、ステップＳ５で更
新された射出時間の基準値を基にして制御がなされる。
継続しない場合は、射出時間による温度制御を終了する
（ステップＳ９)。Next, the shot interval counting counter is cleared (step S8). When the temperature control based on the injection time is continued, the process returns to step S2, and the control is performed based on the reference value of the injection time updated in step S5.
If not continued, the temperature control based on the injection time is ended (step S9).
【００１５】例えば、射出時間の基準値５が１０．００
ｓｅｃで、射出時間の平均値６が１０．５０ｓｅｃの場
合、その偏差は１０．５０−１０．００＝０．５０とな
り、データテーブルの射出時間０．５０の＋側温度補正
データ３から、補正値１０として、ＮＨ″５″、Ｈ４″
１０″、 Ｈ３″１５″、 Ｈ２″２０″、Ｈ１″２５″
を自動的に読み取る。そして、表１に示すように、温度
設定の今回値８に、＋側温度補正データ３からの補正値
１０を加算して次回の温度設定値（次回値）とし、各ゾ
ーンの温度データを更新する。For example, if the injection time reference value 5 is 10.00
When the average value 6 of the injection time is 10.50 sec in sec, the deviation is 10.50-10.00 = 0.50, and the deviation is calculated from the + side temperature correction data 3 of the injection time 0.50 in the data table. As the value 10, NH "5", H4 "
10 ", H3" 15 ", H2" 20 ", H1" 25 "
Read automatically. Then, as shown in Table 1, the correction value 10 from the + side temperature correction data 3 is added to the current value 8 of the temperature setting to obtain the next temperature setting value (next value), and the temperature data of each zone is updated. I do.
【００１６】[0016]
【表１】 これにより、従来の温度設定から新しい温度設定へ変更
される。新しい次回の温度設定値は、今回値となり、今
までの今回値は前回値に自動的に入力変更される。そし
て、新しい温度設定により温度制御が開始される。も
し、射出時間が今までの基準値より遅くなった場合、今
までより高い温度で温度制御が開始され、樹脂の流動化
が良くなり射出時間が早くなってくる。また、反対に射
出時間が今までの基準値より早くなった場合、−側の温
度補正データにより補正された温度制御が開始され、そ
の結果、温度が今までより低く制御されるため、樹脂の
流動が遅くなり、射出時間の基準値に近づいていく。こ
の制御をくり返し行うことにより、射出時間が一定値へ
収束されることにより、製品の安定化が計られる。[Table 1] Thereby, the temperature setting is changed from the conventional temperature setting to the new temperature setting. The new next temperature set value becomes the current value, and the current current value is automatically changed to the previous value. Then, the temperature control is started by the new temperature setting. If the injection time is later than the conventional reference value, the temperature control is started at a higher temperature, the fluidization of the resin is improved, and the injection time is shortened. Conversely, if the injection time becomes earlier than the previous reference value, the temperature control corrected by the negative temperature correction data is started, and as a result, the temperature is controlled lower than before, so that the resin The flow slows down and approaches the injection time reference value. By repeating this control, the injection time converges to a constant value, thereby stabilizing the product.
【００１７】[0017]
【発明の効果】本発明による射出成形機の温度制御方法
では、熟練作業者の経験・ノウハウをデータテーブル化
して成形機のコントローラの中にあらかじめ入力するこ
とにより、従来、熟練作業者が実施している射出シリン
ダの各ゾーンの温度データの補正を自動的に処理し、安
定した製品を連続して成形することができる。According to the temperature control method for an injection molding machine according to the present invention, the experience and know-how of a skilled worker are converted into a data table and input in advance to a controller of the molding machine. The correction of the temperature data of each zone of the injection cylinder is automatically processed, and a stable product can be continuously formed.
【図１】本発明による射出成形機の温度制御を示すフロ
ーチャートである。FIG. 1 is a flowchart showing temperature control of an injection molding machine according to the present invention.
【図２】射出時間による温度制御を行うコントローラの
画面を示す図である。FIG. 2 is a diagram illustrating a screen of a controller that performs temperature control based on an injection time.
１ スタートスイッチ ２ 設定値（ショット間隔） ３ ＋側温度補正データ ４ −側温度補正データ ５ 基準値（射出時間） ６ 平均値（射出時間） ７ 計数値（ショット間隔） ８ 今回値（設定温度） ９ 前回値（設定温度） １０ 補正値 1 Start switch 2 Set value (shot interval) 3 + side temperature correction data 4-side temperature correction data 5 Reference value (injection time) 6 Average value (injection time) 7 Count value (shot interval) 8 Current value (set temperature) 9 Previous value (set temperature) 10 Correction value
Claims (4)
果により補正することを特徴とする射出成形機の温度制
御方法。1. A temperature control method for an injection molding machine, wherein a temperature setting of an injection cylinder is corrected based on a result of an injection time.
隔の計数値（７）の満了時の射出時間の平均値（６）と
の偏差を求め、該偏差に対する射出成形機の射出シリン
ダの各ゾーンの温度の補正データ（３，４）が入力され
ているデータテーブルにより、各ゾーンの温度データを
補正することを特徴とする射出成形機の温度制御方法。2. A deviation between a reference value (5) of the injection time and an average value (6) of the injection time at the expiration of the count value (7) of the shot interval, and an injection cylinder of the injection molding machine corresponding to the deviation. Wherein the temperature data of each zone is corrected by a data table to which the correction data (3, 4) of the temperature of each zone is inputted.
（３）と−側温度補正データ（４）に分けて入力され、
前記偏差が＋側にあるか、−側にあるかを射出時間の基
準値（５）と、ショット間隔の計数値（７）の満了時の
射出時間の平均値（６）との偏差により自動的に判断し
て、各ゾーンの温度データを補正することを特徴とする
請求項２記載の射出成形機の温度制御方法。3. The correction data is input by being divided into + side temperature correction data (3) and − side temperature correction data (4),
Whether the deviation is on the + side or the-side is automatically determined by the deviation between the reference value (5) of the ejection time and the average value (6) of the ejection time at the expiration of the count value (7) of the shot interval. 3. The temperature control method for an injection molding machine according to claim 2, wherein the temperature data of each zone is corrected based on the judgment.
時の射出時間の平均（６）値を次回の射出時間の基準値
（５）とすることを特徴とする請求項２または３記載の
射出成形機の温度制御方法。4. The shot time average (6) at the expiration of the shot interval count value (7) is set as a reference value (5) for the next shot time. Temperature control method of injection molding machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10225854A JP2000052391A (en) | 1998-08-10 | 1998-08-10 | Method for controlling temperature for injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10225854A JP2000052391A (en) | 1998-08-10 | 1998-08-10 | Method for controlling temperature for injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000052391A true JP2000052391A (en) | 2000-02-22 |
Family
ID=16835897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10225854A Pending JP2000052391A (en) | 1998-08-10 | 1998-08-10 | Method for controlling temperature for injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000052391A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1475212A1 (en) * | 2000-03-27 | 2004-11-10 | Sumitomo Heavy Industries, Ltd. | Method and system for controlling an injection molding machine capable of reducing variations in weight of molded product |
| WO2017148422A1 (en) * | 2016-03-02 | 2017-09-08 | 群达模具(深圳)有限公司 | Injection mold temperature control method and device based on positive and negative input predictive control |
-
1998
- 1998-08-10 JP JP10225854A patent/JP2000052391A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1475212A1 (en) * | 2000-03-27 | 2004-11-10 | Sumitomo Heavy Industries, Ltd. | Method and system for controlling an injection molding machine capable of reducing variations in weight of molded product |
| WO2017148422A1 (en) * | 2016-03-02 | 2017-09-08 | 群达模具(深圳)有限公司 | Injection mold temperature control method and device based on positive and negative input predictive control |
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