JPH03155445A - Method and instrument for detecting abnormality in die clamping - Google Patents
Method and instrument for detecting abnormality in die clampingInfo
- Publication number
- JPH03155445A JPH03155445A JP29110989A JP29110989A JPH03155445A JP H03155445 A JPH03155445 A JP H03155445A JP 29110989 A JP29110989 A JP 29110989A JP 29110989 A JP29110989 A JP 29110989A JP H03155445 A JPH03155445 A JP H03155445A
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- Japan
- Prior art keywords
- mold
- temperature
- clamping
- end position
- die
- 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.)
- Granted
Links
- 230000005856 abnormality Effects 0.000 title claims description 19
- 238000000034 method Methods 0.000 title abstract description 20
- 238000001514 detection method Methods 0.000 claims abstract description 41
- 239000002184 metal Substances 0.000 abstract description 5
- 230000013011 mating Effects 0.000 abstract description 3
- 238000005266 casting Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 11
- 230000006870 function Effects 0.000 description 8
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000003028 elevating effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、鋳造用金型におりる型閉じ異常検知方法およ
びその装置に関し、とくに型閉じの異常を正確に検知す
るようにした検知方法および装置に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method and device for detecting mold closing abnormalities in a casting mold, and particularly to a detection method that accurately detects mold closing abnormalities. and regarding equipment.
［従来の技術］
金型を用いた鋳造においては、金型の間に異物が挟まっ
た状態で鋳造が行なわれると、金型の合せ部から溶湯の
漏れを生じるため、従来では、型閉じ後、作業者が目視
によって異物の挾み込みの有無を検査していた。[Prior art] In casting using a mold, if casting is performed with foreign objects caught between the molds, molten metal leaks from the joints of the molds. , workers visually inspected for the presence or absence of foreign objects.
しかし、目視による検査の場合は、見落しが生じるとと
もに信頼性が低く、検査のための工数も必要となる等の
問題があった。However, in the case of visual inspection, there are problems such as oversights, low reliability, and the need for many man-hours for inspection.
そこで、型締め時に異物の存在を自動的に検出するよう
にした装置が提案されており、その−例として、たとえ
ば特開昭６１−２６９９６５＠公報、特開昭６２−１９
４２５号公報が知られている。前者は、型締力検出値と
その基準値との偏差量を拝出し、この偏差量と予め記憶
した型締め力変化量との比較に基づいて金型間異物を検
出するようになっており、後者は型締め圧力もしくは型
締め時間検出手段とメモリと演算処理装置によって型内
の異物の存在を自動検出するようになっている。Therefore, devices have been proposed that automatically detect the presence of foreign substances during mold clamping.
No. 425 is known. The former detects the amount of deviation between the detected mold clamping force value and its reference value, and detects foreign objects between the molds based on the comparison between this deviation amount and the pre-stored amount of change in mold clamping force. The latter is designed to automatically detect the presence of foreign matter in the mold using a mold clamping pressure or mold clamping time detection means, a memory, and an arithmetic processing unit.
［発明が解決しようとする課題］
しかしながら、特開昭６２−１９４２５号公報のような
装置においては、金型の温度に対応した異物の正確な検
知が困難であった。[Problems to be Solved by the Invention] However, in the device as disclosed in Japanese Patent Application Laid-Open No. 62-19425, it is difficult to accurately detect foreign matter in accordance with the temperature of the mold.
そこで、金型の温度を考慮した異物の検知方法が考えら
れるが、これをどのように適用するかについては問題が
あった。つまり、金型は温度変化によってその厚さが変
化するため、金型の最少厚さから最大厚さを検出許容範
囲とすると、異物の挾み込み検知の信頼性が低下してし
まう。また、検出許容範囲を狭くすると、金型温度の変
化による金型厚さの変化を異物の鋏み込みである誤検知
するおそれが生じる。このように、従来では異物の挟み
込みを正確に検出することは、困難であった。Therefore, a method of detecting foreign objects that takes the temperature of the mold into consideration has been considered, but there have been problems as to how to apply this method. In other words, since the thickness of the mold changes due to temperature changes, if the allowable detection range is set from the minimum thickness to the maximum thickness of the mold, the reliability of detecting foreign matter trapped will decrease. Furthermore, if the detection tolerance range is narrowed, there is a risk that a change in mold thickness due to a change in mold temperature may be erroneously detected as being caught in a foreign object. As described above, it has been difficult to accurately detect the entrapment of foreign objects in the past.
本発明は、上記の問題に着目し、金型温度に対応した異
物の正確な検知が可能な型閉じ異常検知方法およびその
装置を提供することを目的とする。The present invention has focused on the above-mentioned problem, and aims to provide a mold closing abnormality detection method and apparatus that can accurately detect foreign substances corresponding to mold temperature.
［課題を解決するための手段］
この目的に沿う本発明に係る型閉じ異常検知方法は、予
め金型温度に対する金型閉端の位置を検出し、前記金型
温度と金型閉端の位置とから金型温度に対する金型閉端
位置の上限、下限の許容値を求め、前記金型閉端時に、
金型温度に対する金型閉端位置の許容値と実際の金型閉
端位置の大小を比較して該型閉じが正常か否かを判定す
る方法から成る。[Means for Solving the Problems] A mold closing abnormality detection method according to the present invention that meets this objective detects the position of the mold closed end with respect to the mold temperature in advance, and calculates the mold temperature and the mold closed end position. From this, determine the upper and lower allowable values of the mold closing end position relative to the mold temperature, and when the mold closing end,
This method consists of comparing the allowable value of the mold closing end position with respect to the mold temperature and the magnitude of the actual mold closing end position to determine whether the mold closing is normal or not.
また、本発明に係る型閉じ異常検知装置は、金型閉端の
位置を検知する位置検出手段と、金型温度を検知する金
型温度検出手段と、前記金型温度と金型閉端の位置とか
ら金型温度に対する金型閉端位置の上限、下限の許容値
を求め、該金型温度に対応する前記金型閉端位置の上限
、下限の許容値と金型閉端位置の大小を比較し型閉じが
正常か否かを判定する判定手段と、前記判定手段からの
判定結果を表示する表示手段と、
を具備したものから成る。Further, the mold closing abnormality detection device according to the present invention includes a position detection means for detecting the position of the mold closed end, a mold temperature detection means for detecting the mold temperature, and a position detection means for detecting the position of the mold closed end, a mold temperature detection means for detecting the mold temperature, The upper and lower limit tolerances of the mold closed end position relative to the mold temperature are determined from the mold temperature, and the upper and lower tolerance values of the mold closed end position corresponding to the mold temperature and the size of the mold closed end position are calculated. and a display means for displaying the determination result from the determination means.
［作 用］
このように構成された型閉じ異常検知方法およびその装
置においては、まず、金型閉端の位置が位置検出手段に
よって検知され、金型の温度が金型温度検出手段によっ
て検知される。金型の温度と金型閉端の位置が検知され
ると、判定手段によって金型温度と金型閉端の位置とか
ら金型温度に対する金型閉端位置の上限、下限の許容値
が求められる。そして、金型閉端時に、金型温度に対す
る閉端位置の許容値と実際の閉端位置の大小を比較して
閉じが正常か否かが判定され、この結果は表示手段に表
示される。[Function] In the mold closing abnormality detection method and device configured as described above, first, the position of the closed end of the mold is detected by the position detection means, and the temperature of the mold is detected by the mold temperature detection means. Ru. When the temperature of the mold and the position of the closed end of the mold are detected, the determination means calculates the upper and lower allowable values of the closed end position of the mold with respect to the mold temperature from the mold temperature and the position of the closed end of the mold. It will be done. Then, when the mold is closed, it is determined whether the closing is normal or not by comparing the allowable value of the closed end position with respect to the mold temperature and the magnitude of the actual closed end position, and this result is displayed on the display means.
このように、金型温度に対する金型の閉端位置を考慮し
た検出としているので、異物の正確な検知が可能となり
、金型間への異物の・挟み込みによる金型の合せ部から
の溶湯の漏れが確実に防止される。In this way, since the detection takes into account the closed end position of the mold relative to the mold temperature, it is possible to accurately detect foreign objects, and prevent molten metal from coming from the mating part of the molds due to foreign objects or being caught between the molds. Leakage is reliably prevented.
［実施例］
以下に、本発明に係る型閉じ異常検知方法およびその装
置の望ましい実施例を、図面を参照して説明する。[Embodiments] Hereinafter, preferred embodiments of the mold closing abnormality detection method and device according to the present invention will be described with reference to the drawings.
第１図および第２図は、本発明の一実施例を示しており
、とくに低圧鋳造機あるいは重力鋳造機に適用した場合
を示している。図において、１は低圧鋳造機を示してい
る。低圧鋳造機１の上部固定プレート２と下部固定プレ
ート３は、複数のタイバー４を介して連結されている。1 and 2 show an embodiment of the present invention, particularly when applied to a low-pressure casting machine or a gravity casting machine. In the figure, 1 indicates a low pressure casting machine. The upper fixed plate 2 and lower fixed plate 3 of the low pressure casting machine 1 are connected via a plurality of tie bars 4.
上部固定プレート２と下部固定プレート３の間には、移
動プレート５が配置されており、移動プレート５はタイ
バー４に摺動可能に支持されている。上部固定プレート
２の頂面には、昇降シリンダ６が固定されており、昇降
シリンダ６のロッド７は、移動プレート５に連結されて
いる。A movable plate 5 is arranged between the upper fixed plate 2 and the lower fixed plate 3, and the movable plate 5 is slidably supported by the tie bar 4. An elevating cylinder 6 is fixed to the top surface of the upper fixed plate 2, and a rod 7 of the elevating cylinder 6 is connected to the movable plate 5.
移動プレート５と下部固定プレート３との間には、金型
８が配置されている。金型８は、上金型９と下金型１０
とから構成されている。上金型９は、上部固定プレー１
〜２の下面に取付けられており、下金型１０は、下部固
定プレート３の上面に取付けられている。つまり、上金
型９は、昇降シリンダ６のロッド７の伸縮に伴なって移
動するようになっており、昇降シリンダ６の押圧力によ
って、上金型９と下金型１０との型閉じ（型締め）が行
なわれる。A mold 8 is arranged between the moving plate 5 and the lower fixed plate 3. The mold 8 has an upper mold 9 and a lower mold 10.
It is composed of. The upper mold 9 has an upper fixed plate 1
2, and the lower mold 10 is attached to the upper surface of the lower fixing plate 3. That is, the upper mold 9 moves as the rod 7 of the lifting cylinder 6 expands and contracts, and the pressing force of the lifting cylinder 6 causes the upper mold 9 and the lower mold 10 to close ( mold clamping) is performed.
上部固定プレート２の上面側には、金型閉端の位置を検
出する位置検出手段１１が設けられている。A position detection means 11 is provided on the upper surface side of the upper fixing plate 2 to detect the position of the closed end of the mold.
位置検出手段１１は、位置検出センサ１２、検出ロッド
１３、ガイド１４とから構成されている。検出ロッド１
３の下端は移動プレート５に連結されており、検出ロッ
ド１３は、上金型１０の移動に伴なって上下方向に動く
ようになっている。ガイド１４は上部固定プレー１〜２
に取付けられており、検出ロッド１３を開動可能に保持
する機能を有する。位置検出センサ１２は、検出ロッド
１３の位置を検出する機能を有しており、上金型９と下
金型１０との型閉じ（金型閉端）における上金型１０の
位置を検出する機能を有している。The position detection means 11 includes a position detection sensor 12, a detection rod 13, and a guide 14. Detection rod 1
The lower end of the detection rod 3 is connected to the moving plate 5, and the detection rod 13 is configured to move in the vertical direction as the upper mold 10 moves. The guide 14 is the upper fixed play 1-2
It has the function of holding the detection rod 13 so that it can be opened. The position detection sensor 12 has a function of detecting the position of the detection rod 13, and detects the position of the upper mold 10 when the upper mold 9 and the lower mold 10 are closed (mold closed end). It has a function.
上金型９と下金型１０には、金型温度検出手段としての
温１３Ｔ’Ｌ’ンザ１５．１６が設けられている。温度
センサ１５．１６は、金型の温度を電気信号に変換する
機能を有している。The upper mold 9 and the lower mold 10 are provided with temperature sensors 13T'L' 15 and 16 as mold temperature detection means. The temperature sensors 15 and 16 have a function of converting the temperature of the mold into an electrical signal.
位置検出手段１１の位置検出センサ１２は、インターフ
ェース１７を介して判定手段としてのマイクロコンピュ
ータのＣＰ Ｕ １Ｂに接続されている。また、温度セ
ンナ１５．１６は、インターフェース１９を介して同様
にｃ ｐ ｕ ｉａに接続されている。ＣＰ Ｕ １８
には、判定結果を表示する表示手段２０が接続されてい
る。The position detection sensor 12 of the position detection means 11 is connected via an interface 17 to a CPU 1B of a microcomputer serving as a determination means. Furthermore, the temperature sensors 15 and 16 are similarly connected to the CPU via the interface 19. CPU 18
A display means 20 for displaying the determination results is connected to.
ＣＰＵ１８は、金型温度と金型閉端の位置とから金型温
度に対する金型閉端位置の上限、下限の許容値を求め、
これを記憶する機能を有している。The CPU 18 calculates the upper and lower allowable values of the mold closed end position with respect to the mold temperature from the mold temperature and the mold closed end position,
It has a function to store this information.
また、ＣＰ Ｕ １Ｂは、金型閉端時の信号により金型
温度、金型閉端位置を入力させ、金型温度に対応する金
型閉端位置の上限、下限の許容値と金型閉端位置の大小
を比較して、型閉じが正常か否かを判定し、その結果を
表示手段２０に出力する機能を有する。In addition, the CPU 1B inputs the mold temperature and the mold closing end position according to the signal at the mold closing end, and inputs the upper and lower tolerance values of the mold closing end position corresponding to the mold temperature and the mold closing end position. It has a function of comparing the sizes of the end positions to determine whether mold closing is normal or not, and outputting the result to the display means 20.
つぎに、本発明に係る型閉じ異常検知方法における作用
について、第２図のフローチャートを参照して説明する
。Next, the operation of the mold closing abnormality detection method according to the present invention will be explained with reference to the flowchart of FIG. 2.
まず、鋳造時には、昇降シリンダ６のロッド７が下方に
伸長し、移動プレート５の移動に伴なって上金型９が下
金型１０に接近される。上金型９が下降限に達すると、
温度センサ１５．１６によって上金型９および下金型１
０の温度がインタフェース１９を介してＣＰ Ｕ １Ｂ
に入力される。これと同時に、上金型９の位置（移動プ
レート５の位置）が位置検出センサ１２からインタフェ
ース１７を介してＣＰＵ１８に入力される。ＣＰＵ１８
では、予め記憶されている金型閉端位置の上、限、下限
の許容値と上金型９の位置との比較が行なわれる。First, during casting, the rod 7 of the lifting cylinder 6 extends downward, and the upper mold 9 approaches the lower mold 10 as the movable plate 5 moves. When the upper mold 9 reaches its lower limit,
Upper mold 9 and lower mold 1 by temperature sensor 15.16
temperature of 0 is connected to CPU 1B via interface 19.
is input. At the same time, the position of the upper mold 9 (the position of the moving plate 5) is input from the position detection sensor 12 to the CPU 18 via the interface 17. CPU18
Then, the position of the upper mold 9 is compared with the upper, lower and lower limit tolerance values of the mold closed end position stored in advance.
なお、金型の温度を測定し、許容値を判断してから昇降
シリンダ６を作動させ、下降限で上金型９の位置を読取
り、大小を比較するようにしてもよい。このような方法
の場合は、下降限での判定待ち時間の短縮が可能となる
。Alternatively, the temperature of the mold may be measured, the allowable value determined, and then the lifting cylinder 6 may be operated, and the position of the upper mold 9 may be read at the lower limit and the size may be compared. In the case of such a method, it is possible to shorten the determination waiting time at the lower limit.
第２図は、ＣＰＵにおける型閉じの正常、異常の判定処
理の一例を示している。低圧鋳造機１からの金型閉端信
号（図示路）により、判定処理がステップ３１でスター
トし、ステップ３２で各金型の温度が測定され、温度セ
ンサ１５による上金型９の温度Ｔ、と温度センサ１６に
よる下金型１０の温度Ｔ２の平均値Ｔ＝ （Ｔ、＋Ｔ２
）／２が求められる。FIG. 2 shows an example of a process for determining whether mold closing is normal or abnormal in the CPU. The determination process starts in step 31 in response to a mold close end signal (as shown in the diagram) from the low pressure casting machine 1. In step 32, the temperature of each mold is measured, and the temperature T of the upper mold 9 is determined by the temperature sensor 15. and the average value T2 of the temperature T2 of the lower mold 10 measured by the temperature sensor 16 = (T, +T2
)/2 is required.
つぎに、ステップ３３に進み、予め記憶されている金型
の温度に対応する移動プレート５（上金型９）の位置の
上限許容値ｌｕ、下限許容値１が読み込まれる。ここで
、上限下限許容値は、予め実験的に求めたものがｃ ｐ
ｕ ｉａに入力されている。Next, the process proceeds to step 33, where the upper limit tolerance lu and lower limit tolerance 1 of the position of the moving plate 5 (upper mold 9) corresponding to the temperature of the mold stored in advance are read. Here, the upper and lower allowable values are determined experimentally in advance by c p
It is input to uia.
ステップ３４では、位置検出センサ１２によって移動プ
レート３の現在位置りを検知され、ステップ３５に進む
。すなわち、ここでは間接的に上金型９の現在位置が検
知される。ステップ３５では、検知された上金型９の位
置と、上金型９の両許容値夕ｕ、ｉＬとの大小が比較さ
れ、上金型９の現在位置りが上金型９の位置の下降許容
値ゑ［より小さいか等しく、かつ上金型９の現在位置り
が上金型９の位置の上限許容値Ｊｕより大きいか等しい
とき、ステップ３７に進む。ステップ３７においては、
型閉じが正常である旨を表示手段２０に出力し、ステッ
プ３８に進んで終了となる。ステップ３５において上金
型９の位置の下限許容値ＩＬが上金型９の現在位置しよ
り小さいか、上金型９の位置の上限許容値１ｕが上金型
９の現在位置りより大きい場合は、ステップ３６に進む
。ステップ３６においては、型閉じが異常である旨を表
示手段２０に出力し、ステップ３８に進んで処理は終了
となる。In step 34, the current position of the moving plate 3 is detected by the position detection sensor 12, and the process proceeds to step 35. That is, here, the current position of the upper mold 9 is indirectly detected. In step 35, the detected position of the upper mold 9 is compared with both allowable values u and iL of the upper mold 9, and the current position of the upper mold 9 is determined from the position of the upper mold 9. When the lowering allowable value E[is smaller than or equal to and the current position of the upper die 9 is greater than or equal to the upper limit allowable value Ju of the position of the upper die 9, the process proceeds to step 37. In step 37,
A message indicating that the mold closing is normal is output to the display means 20, and the process proceeds to step 38 to end the process. In step 35, if the lower limit tolerance IL of the upper mold 9 position is smaller than the current position of the upper mold 9, or the upper limit tolerance 1u of the upper mold 9 position is larger than the current position of the upper mold 9 If so, proceed to step 36. In step 36, a message indicating that the mold closing is abnormal is output to the display means 20, and the process proceeds to step 38, where the process ends.
このように、型閉じの正常、異常の判定が表示手段２０
に表示されるので、上金型９と下金型１０との間に異物
が挟まった場合でも、確実に異物の除去ができるように
なり、上金型９と下金型１０との間から溶湯が漏れ出す
という問題は解消される。In this way, the display means 20 can determine whether the mold closing is normal or abnormal.
is displayed, so even if a foreign object is caught between the upper mold 9 and the lower mold 10, the foreign object can be reliably removed and removed from between the upper mold 9 and the lower mold 10. The problem of molten metal leaking out is eliminated.
第３図は、本実施例の変形例を示している。上述の実施
例では、異物の挾み込みの異常の有無を判定する機能の
みであったが、本実施例では、ざらに具体的な情報を出
力するようになっている。FIG. 3 shows a modification of this embodiment. In the above-described embodiment, only the function of determining whether there is an abnormality in the trapping of a foreign object is provided, but in this embodiment, more specific information is output.
処理の手順は、途中までは第２図と同様であるので、異
なる処理についてのみ説明する。Since the processing procedure is the same as that shown in FIG. 2 up to the middle, only the different processing will be explained.
第３図のステップ３５ａに示すように、上金型９の現在
位置りが上限許容値Ｊｕよりも小さい時（上金型９が上
限より更に上方に位置している時）は、上金型９と下金
型１０との間に隙間があると判断し、つまり異物を挟み
込んでいると判断し、ステップ３６ａに進んで、異物挾
み込み信号が表示手段２０に出力される。As shown in step 35a of FIG. 3, when the current position of the upper mold 9 is smaller than the upper limit allowable value Ju (when the upper mold 9 is located further above the upper limit), the upper mold It is determined that there is a gap between the mold 9 and the lower mold 10, that is, it is determined that a foreign object is trapped, and the process proceeds to step 36a, where a foreign object trapped signal is output to the display means 20.
ステップ３５ａで上金型９の現在位置りが上限許容値ｌ
ｕよりも小でない場合は、ステップ３５ｂに進み、上金
型９の現在位置りが下限許容値１よりも大きいか否かが
判断される。ここで、現在位置りが下限許容値１［より
大きいく上金型９が下限より更に下方に位置している）
と判断された場合、これは現実にはあり得ないことであ
るので、位置検出センサ１２または温度センサ“１５．
１６に異常が発生したと判断し、表示手段２０にその旨
の異常信号が出力される。以下、ステップ３７．３８の
処理は、第２図に準じる。In step 35a, the current position of the upper mold 9 is determined to be the upper limit tolerance l.
If it is not smaller than u, the process proceeds to step 35b, where it is determined whether the current position of the upper mold 9 is larger than the lower limit tolerance value 1 or not. Here, the current position is greater than the lower limit tolerance value 1 [the upper mold 9 is located further below the lower limit]
If it is determined that this is not possible in reality, the position detection sensor 12 or the temperature sensor "15.
It is determined that an abnormality has occurred in 16, and an abnormality signal to that effect is output to display means 20. Hereinafter, the processing in steps 37 and 38 is based on FIG. 2.
このように、異物の挾み込みの他に、位置検出センサ１
２と温度センサ１５．１６の異常を表示することにより
、異常時における作業者の対応が容易になり、作業の停
止時間を短縮することができる。In this way, in addition to getting caught in foreign matter, the position detection sensor 1
By displaying abnormalities in temperature sensors 15 and 15 and 16, it becomes easier for workers to respond to abnormalities, and work stoppage time can be shortened.
［発明の効果］
以上説明したように、本発明に係る型閉じ異常検知方法
およびその装置によるときは、予め金型温度に対する金
型閉端の位置を検出し、金型温度と金型閉端の位置とか
ら金型温度に対する金型閉端位置の上限、下限の許容値
と実際の閉喘位簡の大小を比較して型閉じが正常か否か
を判定するようにしたので、鋳造サイクルが進むに連れ
て変化する温度に対する金型の厚さの変化を考慮した異
物の検知が可能となる。[Effects of the Invention] As explained above, when using the mold closing abnormality detection method and device according to the present invention, the position of the mold closed end with respect to the mold temperature is detected in advance, and the mold temperature and the mold closed end position are detected in advance. Since the casting cycle is determined by comparing the upper and lower limits of the mold closing position with respect to the mold temperature and the actual closing position, it is determined whether the mold closing is normal or not. This makes it possible to detect foreign objects by taking into account changes in the thickness of the mold due to temperature changes as the mold progresses.
その結果、鋳造機の異常あるいは休止等により金型の温
度が異常に低下した場合でも、正確な型閉じ位置を把握
することが可能となり、異物の挾み込みの発生の有無を
確実に検知することができる。As a result, even if the temperature of the mold drops abnormally due to an abnormality or suspension of the casting machine, it is possible to accurately determine the mold closing position and reliably detect whether foreign matter has become trapped. be able to.
また、判定手段からの結果は表示手段に表示されるので
、異物の挾み込みの見落し・がなくなる。Further, since the results from the determination means are displayed on the display means, there is no possibility of overlooking the presence of foreign objects.
したがって、作業者等によって金型間の異物が取除かれ
、金型の合せ部からの溶湯の漏れを未然に防止すること
ができる。Therefore, foreign matter between the molds can be removed by an operator or the like, and leakage of molten metal from the mating portion of the molds can be prevented.
第１図は本発明の一実施例に係る型閉じ異常検知方法に
用いられる装置の概略構成図、第２図は第１図の装置の
ＣＰＵにおける情報処理の手順を示したフローチャー１
〜、
第３図は第２図の変形例を示したフローチＶ−１・、
である。
１・・・・・・低圧鋳造機
５・・・・・・移動プレート
６・・・・・・昇降シリンダ
８・・・・・・金型
１１・・・・・・位置検出手段
１５．１６・・・・・・金型温度検出手段１８・・・・
・・判定手段
２０・・・・・・表示手段
６
１ 低圧鋳造機
第１
図
第３ｍFIG. 1 is a schematic configuration diagram of a device used in a mold closing abnormality detection method according to an embodiment of the present invention, and FIG. 2 is a flowchart 1 showing the procedure of information processing in the CPU of the device shown in FIG.
~, Fig. 3 is a flowchart V-1., which shows a modification of Fig. 2. 1...Low pressure casting machine 5...Moving plate 6...Elevating cylinder 8...Mold 11...Position detection means 15.16 ...Mold temperature detection means 18...
・・Determination means 20 ・・・Display means 6 1 Low pressure casting machine 1st figure 3m
Claims (1)
記金型温度と金型閉端の位置とから金型温度に対する金
型閉端位置の上限、下限の許容値を求め、前記金型閉端
時に、金型温度に対する金型閉端位置の許容値と実際の
金型閉端位置の大小を比較して該型閉じが正常か否かを
判定することを特徴とする型閉じ異常検知方法。 ２、金型閉端の位置を検知する位置検出手段と、金型温
度を検知する金型温度検出手段と、 前記金型温度と金型閉端の位置とから金型温度に対する
金型閉端位置の上限、下限の許容値を求め、該金型温度
に対応する前記金型閉端位置の上限、下限の許容値と金
型閉端位置の大小を比較して型閉じが正常か否かを判定
する判定手段と、前記判定手段からの判定結果を表示す
る表示手段と、 を具備したことを特徴とする型閉じ異常検知装置。[Claims] 1. Detect the position of the mold closed end with respect to the mold temperature in advance, and determine the upper and lower limits of the mold closed end position with respect to the mold temperature from the mold temperature and the position of the mold closed end. Obtaining a tolerance value, and comparing the tolerance value of the mold closing end position with respect to the mold temperature and the actual mold closing end position when the mold closing end is performed to determine whether the mold closing is normal or not. A mold closing abnormality detection method characterized by: 2. A position detecting means for detecting the position of the mold closed end; a mold temperature detecting means for detecting the mold temperature; and a mold closed end relative to the mold temperature based on the mold temperature and the position of the mold closed end. Find the upper and lower limit tolerances of the position, and compare the upper and lower tolerance values of the mold closing end position corresponding to the mold temperature with the size of the mold closing end position to determine whether mold closing is normal. 1. A mold closing abnormality detection device comprising: a determination means for determining the determination result; and a display means for displaying the determination result from the determination means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1291109A JP2827345B2 (en) | 1989-11-10 | 1989-11-10 | Mold closing abnormality detection method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1291109A JP2827345B2 (en) | 1989-11-10 | 1989-11-10 | Mold closing abnormality detection method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03155445A true JPH03155445A (en) | 1991-07-03 |
| JP2827345B2 JP2827345B2 (en) | 1998-11-25 |
Family
ID=17764571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1291109A Expired - Fee Related JP2827345B2 (en) | 1989-11-10 | 1989-11-10 | Mold closing abnormality detection method and device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2827345B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0516202A (en) * | 1991-07-15 | 1993-01-26 | Okuma Mach Works Ltd | Protective device of metal mold in injection molding machine |
| US5325908A (en) * | 1992-01-17 | 1994-07-05 | Toyota Jidosha Kabushiki Kaisha | Hydraulically operated casting machine for producing a formed product, having mold closing and clamping cylinders |
| US6673282B2 (en) | 2001-04-02 | 2004-01-06 | Toshiba Machine Co., Ltd. | Method for protecting dies in an injection molding machine |
| US6695995B1 (en) | 1999-08-31 | 2004-02-24 | Toshiba Machine Co., Ltd. | Apparatus and method for setting position of movable mold of motor-driven injection molding machine |
| US6755635B2 (en) | 2000-07-28 | 2004-06-29 | Toshiba Machine Co., Ltd. | Apparatus for protecting mold in injection molding machine |
| CN104175424A (en) * | 2014-07-22 | 2014-12-03 | 安庆市曙光包装有限责任公司 | Pushing and pulling mechanism of rubber pad forming mold for metal transfer box |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT508325B1 (en) * | 2009-04-28 | 2011-11-15 | Engel Austria Gmbh | INJECTION MOLDING MACHINE WITH A MECHANICAL AMPLIFIER |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6018264A (en) * | 1983-07-08 | 1985-01-30 | Nissan Motor Co Ltd | Safety device for die clamping of direct pressure type die casting machine |
-
1989
- 1989-11-10 JP JP1291109A patent/JP2827345B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6018264A (en) * | 1983-07-08 | 1985-01-30 | Nissan Motor Co Ltd | Safety device for die clamping of direct pressure type die casting machine |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0516202A (en) * | 1991-07-15 | 1993-01-26 | Okuma Mach Works Ltd | Protective device of metal mold in injection molding machine |
| US5325908A (en) * | 1992-01-17 | 1994-07-05 | Toyota Jidosha Kabushiki Kaisha | Hydraulically operated casting machine for producing a formed product, having mold closing and clamping cylinders |
| US6695995B1 (en) | 1999-08-31 | 2004-02-24 | Toshiba Machine Co., Ltd. | Apparatus and method for setting position of movable mold of motor-driven injection molding machine |
| US6755635B2 (en) | 2000-07-28 | 2004-06-29 | Toshiba Machine Co., Ltd. | Apparatus for protecting mold in injection molding machine |
| US6673282B2 (en) | 2001-04-02 | 2004-01-06 | Toshiba Machine Co., Ltd. | Method for protecting dies in an injection molding machine |
| DE10214093B4 (en) * | 2001-04-02 | 2007-02-08 | Toshiba Machine Co., Ltd. | Method of protecting molds of an injection molding machine |
| CN104175424A (en) * | 2014-07-22 | 2014-12-03 | 安庆市曙光包装有限责任公司 | Pushing and pulling mechanism of rubber pad forming mold for metal transfer box |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2827345B2 (en) | 1998-11-25 |
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