JPH0238156U

JPH0238156U -

Info

Publication number: JPH0238156U
Application number: JP11566988U
Authority: JP
Priority date: 1988-09-02
Filing date: 1988-09-02
Publication date: 1990-03-14

Description

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

第１図は低圧鋳造機の縦断正面図、第２図は第
１図のＡ部詳細縦断図、第３図は第２図のＢ−Ｂ
線における断面図、第４図は電気的構成を示すブ
ロツク図である。５：ストーク、６：溶湯、１１：金型、１２：
可動型、１３：固定型、１４：可動ダイプレート
、１８：キヤビテイ、２１：センサ、２３：ガイ
ドロツド、２５：ラツク、２８：回転軸、３０：
ピニオン、３２：エンコーダ、３５：選択回路、
３６：第１記憶回路、３７：第２記憶回路、３８
：ゼロセツトスイツチ、３９：差演算回路、４１
：比較回路、４２：限界値設定器。 Figure 1 is a longitudinal sectional front view of the low pressure casting machine, Figure 2 is a detailed longitudinal sectional view of section A in Figure 1, and Figure 3 is B-B in Figure 2.
4 is a block diagram showing the electrical configuration. 5: Stoke, 6: Molten metal, 11: Mold, 12:
Movable type, 13: Fixed type, 14: Movable die plate, 18: Cavity, 21: Sensor, 23: Guide rod, 25: Rack, 28: Rotating shaft, 30:
pinion, 32: encoder, 35: selection circuit,
36: first memory circuit, 37: second memory circuit, 38
: Zero set switch, 39: Difference calculation circuit, 41
: Comparison circuit, 42: Limit value setter.

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

昇降自在な可動型１２及び固定型１３から成る
金型１１のキヤビテイ１８内へ溶湯６をストーク
５を介して加圧充填する低圧鋳造機における型合
せ面の〓間検出装置であつて、前記可動型１２の
下降距離を測定するセンサ２１と、本運転開始後
に前記金型１１が型合せされた状態において該セ
ンサ２１からの測定データを順次記憶する第１の
記憶手段３５，３６，３８及び第２の記憶手段３
５，３７，３８と、前記両記憶データの差を求め
る差演算手段３９と、該差演算手段３９によつて
求められた演算値が予め設定された限界値を超え
たとき検出信号を発する比較手段４１，４２とを
備えることを特徴とする低圧鋳造機における型合
せ面の〓間検出装置。 This is a device for detecting the gap between mold mating surfaces in a low-pressure casting machine that pressurizes and fills molten metal 6 into a cavity 18 of a mold 11 through a stalk 5, which is composed of a movable mold 12 and a fixed mold 13 that can be raised and lowered. A sensor 21 that measures the descending distance of the mold 12, a first storage means 35, 36, 38, and a first storage means that sequentially stores measurement data from the sensor 21 in a state where the mold 11 is matched after the start of the main operation. 2 storage means 3
5, 37, and 38, a difference calculating means 39 for calculating the difference between the two stored data, and a comparison device for generating a detection signal when the calculated value calculated by the difference calculating means 39 exceeds a preset limit value. 1. An apparatus for detecting a gap between die mating surfaces in a low-pressure casting machine, comprising means 41 and 42.