JPH0288211A - Control method of magnetic field injection molding and its device - Google Patents
Control method of magnetic field injection molding and its deviceInfo
- Publication number
- JPH0288211A JPH0288211A JP23976688A JP23976688A JPH0288211A JP H0288211 A JPH0288211 A JP H0288211A JP 23976688 A JP23976688 A JP 23976688A JP 23976688 A JP23976688 A JP 23976688A JP H0288211 A JPH0288211 A JP H0288211A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- detected
- magnetic field
- injection
- magnetic force
- 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
- 238000001746 injection moulding Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 8
- 238000002347 injection Methods 0.000 claims abstract description 26
- 239000007924 injection Substances 0.000 claims abstract description 26
- 239000011347 resin Substances 0.000 abstract description 5
- 229920005989 resin Polymers 0.000 abstract description 5
- 238000000465 moulding Methods 0.000 abstract description 3
- 230000002950 deficient Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/84—Safety devices
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は磁場射出成形の制御方法およびその装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method and apparatus for controlling magnetic field injection molding.
従来の磁場射出成形においては、磁場を発生する磁気コ
イルへ供給されている電流値を検出して、検出した電流
値が所定の電流値に達していることを確認することで、
所望の磁力を有する磁気回路が形成されたものと推測し
て射出動作を実施していた。In conventional magnetic field injection molding, by detecting the current value supplied to the magnetic coil that generates the magnetic field and confirming that the detected current value has reached a predetermined current value,
The injection operation was performed assuming that a magnetic circuit having the desired magnetic force was formed.
［発明が解決しようとする課題］
上述した従来の磁場射出成形では、電磁コイルへ電流を
供給することによって発生する磁場で形成される磁気回
路について、所望の磁力が発生しているか否かの確認を
行なっていないので、機器の故障あるいは電磁コイルの
短絡等による磁場の発生不良を検出できず、その状態で
射出成形を実施することで磁気的成形不良を起こすとい
う問題点がある。[Problems to be Solved by the Invention] In the conventional magnetic field injection molding described above, it is difficult to confirm whether or not a desired magnetic force is generated in a magnetic circuit formed by a magnetic field generated by supplying current to an electromagnetic coil. Since this is not carried out, it is not possible to detect failures in magnetic field generation due to equipment failures or short circuits in electromagnetic coils, and if injection molding is carried out in such conditions, magnetic molding failures may occur.
本発明は、上述した従来の技術の有する問題点に鑑みて
なされたものであり、磁場射出成形に必要な磁力を有す
る磁場が発生したことを確認した土で射出成形を行なう
磁場射出成形の制御方法およびその装置を提供すること
を目的としている。The present invention has been made in view of the problems of the conventional techniques described above, and provides control for magnetic field injection molding in which injection molding is performed in soil where it has been confirmed that a magnetic field having the magnetic force necessary for magnetic field injection molding has been generated. The object of the present invention is to provide a method and apparatus thereof.
本発明の磁場射出成形の制御方法は、
発生する磁場の磁力を、該磁場が通過する磁気回路上で
検出し、その検出磁力値と予め設定されている磁場射出
成形に要する所定の磁力の許容範囲を示す設定値とを比
較し、検出磁力値が設定値の範囲外であれば、警報を発
するとともに、射出を行なわせず、また、検出磁力値が
設定値の範囲内であれば、射出を行なわせるものであり
、また、その磁場射出成形機は、
電磁コイル（３）、（４）が発生する磁場の磁力を検出
する磁気センサ（９） 、 （ｌｏ） 、 （ｌ＋）を
、該磁場が通過する磁気回路上に備え、
磁場射出成形に要する所定の磁力の許容範囲を示す設定
値が、予め設定される設定器０２）と、前記磁気センサ
（９） 、 （１０） 、 （１１）が検出した検出磁
力値と設定器（１２）に設定されている設定値とを比較
する比較器（１３）と、
警報発生指示を受けて警報を発する警報装置（１５）と
、
前記比較器（１３）から比較結果を受けて、検出磁力値
が設定値の範囲外であれば、前記警報装置（１５）へ警
報発生指示を出力するとともに、射出装置に対して射出
の禁止指令を出力し、また、検出磁力値が設定値の範囲
内であれば、射出装置に対して射出開始指令を出力する
コントローラ（１４）とを有するものである。The magnetic field injection molding control method of the present invention detects the magnetic force of the generated magnetic field on a magnetic circuit through which the magnetic field passes, and uses the detected magnetic force value and a predetermined magnetic force tolerance required for magnetic field injection molding. If the detected magnetic force value is outside the set value range, an alarm will be issued and injection will not be performed, and if the detected magnetic force value is within the set value range, injection will not be performed. The magnetic field injection molding machine has magnetic sensors (9), (lo), (l+) that detect the magnetic force of the magnetic field generated by the electromagnetic coils (3), (4). A setting device 02) provided on a magnetic circuit through which a magnetic field passes, and in which a setting value indicating a predetermined permissible range of magnetic force required for magnetic field injection molding is set in advance; and the magnetic sensors (9), (10), (11). ), a comparator (13) that compares the detected magnetic force value detected by the setter (12) with a setting value set in the setting device (12), an alarm device (15) that issues an alarm upon receiving an alarm generation instruction, and the comparator Upon receiving the comparison result from (13), if the detected magnetic force value is outside the set value range, an alarm generation instruction is output to the alarm device (15), and an injection prohibition command is output to the injection device. , and a controller (14) that outputs an injection start command to the injection device if the detected magnetic force value is within a set value range.
（作用１
磁場射出成形において、電磁コイルを通電することによ
り発生する磁場の磁力をその磁場の通路となる磁気回路
上に備えられた磁気センサで検出し、その検出値を磁場
射出成形に要する所定の磁力の許容範囲を示す設定値と
比較して樹脂の射出を行なうか否かを、自動的に決定し
、実際に発生している磁場が所定の磁力を有するときの
み射出成形を行なう。(Effect 1 In magnetic field injection molding, the magnetic force of the magnetic field generated by energizing the electromagnetic coil is detected by a magnetic sensor installed on the magnetic circuit that serves as the path of the magnetic field, and the detected value is used to determine the predetermined value required for magnetic field injection molding.) It is automatically determined whether or not to inject the resin by comparing it with a set value indicating the permissible range of magnetic force, and injection molding is performed only when the actually generated magnetic field has a predetermined magnetic force.
次に、本発明の実施例について図面を参照して説明する
。Next, embodiments of the present invention will be described with reference to the drawings.
第１図は本発明の磁場射出成形の制御方法の一実施例の
構成を示すブロック図、第２図は電磁コイル３．４によ
って発生する磁場で形成される磁気回路の例を示す図で
ある。FIG. 1 is a block diagram showing the configuration of an embodiment of the magnetic field injection molding control method of the present invention, and FIG. 2 is a diagram showing an example of a magnetic circuit formed by the magnetic field generated by the electromagnetic coil 3.4. .
本実施例では、固定側金型５が取付けられる固定プラテ
ン１に電磁コイル３が、また可動側金型６に取付けられ
る可動プラテン８に電磁コイル４がそれぞれタイバー２
の内側に位置するように備えられている。さらに、可動
プラテン８はタイバー２に嵌挿されて固定プラテン１に
対して、不図示の型締装置により進退可能となっている
。なお、これらの固定プラテンｌ、タイバー２、固定側
金型５、可動側金型６および可動プラテン８はそれぞれ
磁性材で形成されている。また、固定プラテンｌには、
電磁コイル３．４に電流が供給されて磁場が発生した際
、その磁力を検出する磁気センサ１１が備えられている
。同様に、可動プラテン８にも磁気センサ９．ｌＯが備
えられている。これらの磁気センサ９．１０． １１が
検出した磁力は比較器１３に転送され、比較器１３で、
設定器１２に予め設定されている、磁場射出成形で必要
とする所定の磁力の許容範囲を示す設定値と比較される
。比較器１３はその比較結果と検出磁力値をコントロー
ラ１４に転送する。コントローラ１４は、検出磁力値を
表示器１６に転送して表示するとともに、検出磁力値と
設定器１２に設定されている設定値との比較結果により
、検出磁力値が設定値の範囲内であれば、不図示の射出
装置に射出開始指令を出力して、金型キャビティ７への
射出動作を行なわせ、範囲外であれば、警報装置１５に
警報発生指示を出力するとともに、射出装置に射出の禁
止指令を出力して射出動作を行なわないように制御する
。In this embodiment, the electromagnetic coil 3 is attached to the fixed platen 1 to which the fixed die 5 is attached, and the electromagnetic coil 4 is attached to the tie bar 2 to the movable platen 8 attached to the movable die 6.
It is equipped to be located inside. Further, the movable platen 8 is fitted into the tie bar 2 and can be moved forward and backward relative to the fixed platen 1 by a mold clamping device (not shown). Note that the fixed platen 1, tie bar 2, fixed mold 5, movable mold 6, and movable platen 8 are each made of a magnetic material. In addition, the fixed platen l has
A magnetic sensor 11 is provided that detects the magnetic force when a magnetic field is generated by supplying current to the electromagnetic coil 3.4. Similarly, the movable platen 8 also has a magnetic sensor 9. IO is provided. These magnetic sensors 9.10. The magnetic force detected by 11 is transferred to the comparator 13, and the comparator 13
It is compared with a setting value that is preset in the setting device 12 and indicates a permissible range of a predetermined magnetic force required for magnetic field injection molding. The comparator 13 transfers the comparison result and the detected magnetic force value to the controller 14. The controller 14 transfers the detected magnetic force value to the display 16 and displays it, and also determines whether the detected magnetic force value is within the range of the set value based on the comparison result between the detected magnetic force value and the setting value set in the setting device 12. For example, an injection start command is output to an injection device (not shown) to perform an injection operation into the mold cavity 7, and if it is outside the range, an alarm generation instruction is output to the alarm device 15, and the injection device starts the injection operation. Control is performed so that the injection operation is not performed by outputting a prohibition command.
次に、本実施例の動作について説明する。Next, the operation of this embodiment will be explained.
今、電磁コイル３，４に電流を供給すると、本実施例で
はタイバー２の内側で固定プラテン１および可動プラテ
ン８に電磁コイル３．４が取付けられているので、第２
図（ａ）に示すような磁場が発生する。この磁場によっ
て形成される磁気回路は固定プラテン１−固定側金型５
−金型キャビティ７−可動側金型６−可動プラテン８−
タイバー２＝固定プラテンｌとなり、磁場は第１図の点
線で示すような経路を通過することになる。この磁気回
路上に設はられた磁気センサ９．１０．１１で、実際に
発生している磁力を検出する。この検出値は比較器１３
で設定値と比較された後、その比較結果とともにコント
ローラ１４に転送されて表示器１６に表示される。比較
器１３での比較の結果、検出値が設定値の範囲内であれ
ば金型キャビティ７への樹脂の射出を開始するが、範囲
外であれば警報を発してその旨を通知し、樹脂の射出は
行なわれない。また、検出値が設定値の範囲内に達して
射出を開始した後、範囲を外れた場合も、同様に警報を
発して射出を中止する。Now, when current is supplied to the electromagnetic coils 3 and 4, the electromagnetic coils 3 and 4 are attached to the fixed platen 1 and the movable platen 8 inside the tie bar 2 in this embodiment.
A magnetic field as shown in Figure (a) is generated. The magnetic circuit formed by this magnetic field is the fixed platen 1-fixed side mold 5.
- Mold cavity 7 - Movable side mold 6 - Movable platen 8 -
Tie bar 2=fixed platen l, and the magnetic field passes through a path as shown by the dotted line in FIG. Magnetic sensors 9, 10, and 11 installed on this magnetic circuit detect the actually generated magnetic force. This detected value is the comparator 13
After being compared with the set value, the comparison result is transferred to the controller 14 and displayed on the display 16. As a result of comparison by the comparator 13, if the detected value is within the range of the set value, injection of resin into the mold cavity 7 will start, but if it is outside the range, an alarm will be issued to notify that, and the resin will be injected. No ejection takes place. Furthermore, if the detected value reaches within the range of the set value and starts injection, and then goes out of the range, a warning is issued in the same way and injection is stopped.
さらに、第２図（ｂ）に示すように、電磁コイル３４を
、それぞれタイバー２の外側で固定プラテンｌと可動プ
ラテン８に取付けた場合は、タイバー２を経路としない
磁気回路が形成されるが、６ｆ１気回路の構成として固
定プラテンｌ、固定側金型５、可動側金型６および可動
プラテン８は含まれているので、第１図に示した磁気セ
ンサ９゜１０１１により同じ様に、発生した磁場の磁力
を検出することができる。Furthermore, as shown in FIG. 2(b), if the electromagnetic coils 34 are attached to the fixed platen l and the movable platen 8 outside the tie bars 2, a magnetic circuit is formed that does not use the tie bars 2 as a path. Since the configuration of the 6f1 air circuit includes the fixed platen 1, the fixed mold 5, the movable mold 6, and the movable platen 8, the magnetic sensor 9° 1011 shown in FIG. The magnetic force of the magnetic field can be detected.
また、本実施例では磁気センサ９．１０． ＩＩを固定
プラテンｌ、可動プラテン８に取付けたが、磁場の経路
である固定側金型５あるいは可動側金型６に取付けた場
合でも同様に磁力の検出を行なうことができる。In addition, in this embodiment, magnetic sensors 9.10. Although II is attached to the fixed platen 1 and the movable platen 8, the magnetic force can be similarly detected even if it is attached to the stationary mold 5 or the movable mold 6, which are the paths of the magnetic field.
なお、本実施例において、表示器１６を設けたものを示
したが、この表示器は必ずしも必要とするものではない
。In this embodiment, a display device 16 is provided, but this display device is not necessarily required.
［発明の効果］
以上説明したように本発明によれば、磁場が所望の磁力
に達していない場合、樹脂の射出を行なわないので、磁
気的成形不良が皆無となり、さらに、磁場が所望の磁力
に達しない場合、また、所望の磁力範囲から外れた場合
に警報を発するので、装置の故障あるいは電磁コイルの
短絡等、種々の障害を瞬時に発見することができるとい
う効果がある。[Effects of the Invention] As explained above, according to the present invention, resin is not injected when the magnetic field does not reach the desired magnetic force, so there is no magnetic molding defect, and furthermore, when the magnetic field does not reach the desired magnetic force. Since an alarm is issued when the magnetic force does not reach the desired magnetic force or when the magnetic force falls outside of the desired magnetic force range, various failures such as device failure or electromagnetic coil short-circuits can be detected instantaneously.
第１図は本発明の磁場射出成形の制御方法の一実施例を
示すブロック図、第２図は電磁コイル３．４によって発
生する磁場の例を示す図である。
１・・・・・・・・・・・・固定プラテン、３．４・・
・・・・電磁コイル、
５・・・・・・・・・・・・固定側金型、６・・・・・
・・・・・・・可動側金型、７・・・・・・・・・・・
・金型キャビティ、８・・・・・・・・・・・・可動プ
ラテン、９．１０．１１・・・磁気センサ、
１２・・・・・・・・・・・・設定器、１３・・・・・
・・・・・・・比較器、１４・・・・・・・・・・・・
コントローラ、１５・・・・・・・・・・・・警報装置
、１６・・・・・・・・・・・・表示器。
特許出願人 株式会社日本製鋼所FIG. 1 is a block diagram showing an embodiment of the magnetic field injection molding control method of the present invention, and FIG. 2 is a diagram showing an example of the magnetic field generated by the electromagnetic coil 3.4. 1...Fixed platen, 3.4...
...Electromagnetic coil, 5...Fixed side mold, 6...
・・・・・・Movable side mold, 7・・・・・・・・・・・・
・Mold cavity, 8...Movable platen, 9.10.11...Magnetic sensor, 12...Setting device, 13.・・・・・・
・・・・・・Comparator, 14・・・・・・・・・・・・
Controller, 15.......Alarm device, 16.......Display device. Patent applicant: Japan Steel Works, Ltd.
Claims (1)
上で検出し、その検出磁力値と予め設定されている磁場
射出成形に要する所定の磁力の許容範囲を示す設定値と
を比較し、検出磁力値が設定値の範囲外であれば、警報
を発するとともに、射出を行なわせず、また、検出磁力
値が設定値の範囲内であれば、射出を行なわせる磁場射
出成形の制御方法。 ２、電磁コイル（３）、（４）が発生する磁場の磁力を
検出する磁気センサ（９）、（１０）、（１１）を、該
磁場が通過する磁気回路上に備え、 磁場射出成形に要する所定の磁力の許容範囲を示す設定
値が、予め設定される設定器（１２）と、前記磁気セン
サ（９）、（１０）、（１１）が検出した検出磁力値と
設定器（１２）に設定されている設定値とを比較する比
較器（１３）と、 警報発生指示を受けて警報を発する警報装置（１５）と
、 前記比較器（１３）から比較結果を受けて、検出磁力値
が設定値の範囲外であれば、前記警報装置（１５）へ警
報発生指示を出力するとともに、射出装置に対して射出
の禁止指令を出力し、また、検出磁力値が設定値の範囲
内であれば、射出装置に対して射出開始指令を出力する
コントローラ（１４）とを有することを特徴とする磁場
射出成形機。[Claims] 1. Detecting the magnetic force of the generated magnetic field on a magnetic circuit through which the magnetic field passes, and indicating the detected magnetic force value and a predetermined permissible range of magnetic force required for magnetic field injection molding. Compare the detected magnetic force value with the set value, and if the detected magnetic force value is outside the set value range, an alarm will be issued and injection will not be performed.If the detected magnetic force value is within the set value range, injection will be performed. Control method for magnetic field injection molding. 2. Magnetic sensors (9), (10), (11) that detect the magnetic force of the magnetic field generated by the electromagnetic coils (3), (4) are provided on the magnetic circuit through which the magnetic field passes, and magnetic field injection molding is performed. A setter (12) in which a setting value indicating a required predetermined permissible range of magnetic force is set in advance, and a setter (12) containing the detected magnetic force values detected by the magnetic sensors (9), (10), and (11). a comparator (13) that compares the set value set in If the detected magnetic force value is outside the set value range, an alarm generation instruction is output to the alarm device (15) and an injection prohibition command is output to the injection device, and if the detected magnetic force value is within the set value range. A magnetic field injection molding machine characterized by having a controller (14) that outputs an injection start command to an injection device, if any.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23976688A JPH0288211A (en) | 1988-09-27 | 1988-09-27 | Control method of magnetic field injection molding and its device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23976688A JPH0288211A (en) | 1988-09-27 | 1988-09-27 | Control method of magnetic field injection molding and its device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0288211A true JPH0288211A (en) | 1990-03-28 |
Family
ID=17049595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23976688A Pending JPH0288211A (en) | 1988-09-27 | 1988-09-27 | Control method of magnetic field injection molding and its device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0288211A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60230816A (en) * | 1984-04-28 | 1985-11-16 | Kanegafuchi Chem Ind Co Ltd | Magnetic field orienting injection molding machine |
| JPS62196112A (en) * | 1986-02-25 | 1987-08-29 | Japan Steel Works Ltd:The | Monitoring device for magnetic field injection molder |
-
1988
- 1988-09-27 JP JP23976688A patent/JPH0288211A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60230816A (en) * | 1984-04-28 | 1985-11-16 | Kanegafuchi Chem Ind Co Ltd | Magnetic field orienting injection molding machine |
| JPS62196112A (en) * | 1986-02-25 | 1987-08-29 | Japan Steel Works Ltd:The | Monitoring device for magnetic field injection molder |
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