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Die-casting machine and abnormality detection method of die-casting machine

A technology of die-casting machine and injection plunger, applied in the field of die-casting machine

Inactive Publication Date: 2015-12-09
TOYO MACH & METAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in a general die-casting machine, a cast molded body is repeatedly produced along with its operation. However, if the operation is continued, when the injection plunger is moved forward and backward, the injection plunger that advances and retreats may have an error of more than a specified value. sliding resistance

Method used

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  • Die-casting machine and abnormality detection method of die-casting machine
  • Die-casting machine and abnormality detection method of die-casting machine
  • Die-casting machine and abnormality detection method of die-casting machine

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Embodiment Construction

[0026] Below, use Figure 1 ~ Figure 3 Embodiments of the present invention will be described. Needless to say, the present invention can be easily applied to structures other than those described in the embodiments within a range that does not deviate from the gist of the present invention.

[0027] figure 1 and figure 2The injection system unit 1 shown as the main part of the die-casting machine includes: a machine platform 2; a base member 3 and a fixed template 4 installed on the machine platform 2; a holding block 5 installed on the base member 3; The support member 6 on the template 4 etc.; the mobile body 7 provided on the base member 3 in a manner capable of advancing and retreating; a plurality of rods erected between the holding block 5 and the support member 6 and guiding the forward and backward movement of the mobile body 7 The guide rod 8; the electric servo motor 9 installed on the holding block 5 and used as a driving source in the low-speed injection proce...

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Abstract

Provided is a die-casting machine that can accurately detect the sliding resistance of an injection plunger in an injection sleeve with high precision and from which can be obtained high quality casting products. Also provided is a method for detecting die-casting machine abnormalities. The die-casting machine is provided with a cylindrical injection sleeve (18) supplied with molten metal and an injection plunger tip (15a) attached to an injection plunger (15) that moves back and forth in the injection sleeve (18). The die-casting machine uses at least an electrically driven servo motor (9) in a drive source for an injection step where the molten metal is injected and fills a cavity of a closed metal mold by the forward motion of the injection plunger (15). A torque detection means (32) that detects the torque of the electrically driven servo motor (9) that moves the injection plunger (15) forward and an abnormality detection means (33) that determines that an abnormality has occurred in the forward operation of the injection plunger (15) when a measured value detected by the torque detection means (32) is a value that exceeds a preset threshold value are provided.

Description

technical field [0001] The present invention relates to a die-casting machine for injecting / filling molten metal supplied into an injection sleeve into a mold by advancing an injection plunger, and particularly relates to when the movement of the injection plunger generates sliding resistance exceeding a specified value, This detection is used as an abnormal die-casting machine and an abnormality detection method of the die-casting machine. Background technique [0002] In conventional general die-casting machines, the metal material melted in the melting furnace is metered and drawn in ladles for each injection, and the drawn molten metal is supplied to the molten metal supply port of the injection sleeve, The cavity of the mold is injected and filled with molten metal at high speed and high pressure by the forward movement of the injection plunger provided in the injection sleeve so as to be capable of advancing and retreating, and the cast molded body is formed. [0003]...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D17/32B22D17/20
CPCB22D17/32
Inventor 中塚吉久
Owner TOYO MACH & METAL CO LTD
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