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Die casting machine clamping force online adjusting device and adjusting algorithm

An adjustment device and clamping force technology, which is applied in the field of online adjustment device and adjustment algorithm for die-casting machine clamping force, can solve the problems of personal danger, affecting the quality of die-casting parts, mold expansion, etc.

Active Publication Date: 2015-07-08
SIJIN INTELLIGENT FORMING EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Insufficient clamping force will cause the mold to swell, affecting the quality of die castings and causing danger to people near the die-casting machine; excessive clamping force will affect the performance and life of the mold and die-casting machine

Method used

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  • Die casting machine clamping force online adjusting device and adjusting algorithm
  • Die casting machine clamping force online adjusting device and adjusting algorithm
  • Die casting machine clamping force online adjusting device and adjusting algorithm

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Embodiment 2

[0106] An online adjusting device and algorithm for clamping force of a die-casting machine provided in this embodiment, its general structure is consistent with that of Embodiment 1, the difference is that in the online adjusting algorithm for clamping force of a die-casting machine provided in this embodiment, each tie rod 8 is controlled by Under the assumption that the force is the same, only the measurement of the pulling force of one pull rod 8 is used as the measurement of the clamping force, which specifically includes the following steps:

[0107] a) Establish the relationship between the tensile force F received by the tie rod 8 of the mold clamping mechanism of the die-casting machine and the strain ε produced by the tie rod 8, the above relationship is related to the diameter d or cross-sectional area A of the tie rod 8 itself (A=πd 2 / 4), the elastic modulus E of the material used is related to:

[0108] The specific relationship is: ε=F / EA=4F / Eπd 2 or F=εEA=Eπd ...

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Abstract

The utility model relates to a mechanics volume adjusting device and adjusting algorithm based on route micro adjusting, in particular to a die casting machine clamping force online adjusting device and adjusting algorithm. The object of the invention is to ensure the actual clamping force within the set value in the process of die casting from beginning to end, to improve the real-time detection and control level, and to improve the quality of die casting products. The die casting machine clamping force online adjusting device comprises a clamping force online detecting system, a feedback control system and a die-adjusting actuator mechanism. The clamping force online detecting system obtains clamping resultant force by arranging strain gauge force sensor on the one pull rod or four pull rod of the die-casting machine. The feedback control system comprises an encoder and a control program. The die-adjusting actuator mechanism comprises a hydraulic motor, major and minor die-adjusting gear and a die-adjusting nut. A die casting machine clamping force online adjusting algorithm is also provided. The die casting machine clamping force online adjusting device and adjusting algorithm has the advantages of utilizing feedback signals to start hydraulic motor and driving the die-adjusting nut to rotate so as to adjust the clamping force within the set value, thereby ensuring the quality of the products.

Description

technical field [0001] The patent of the present invention relates to a mechanical quantity adjustment device and adjustment algorithm based on stroke micro-adjustment, especially an online adjustment device and adjustment algorithm for die-casting machine clamping force. Background technique [0002] Die-casting products are formed by rapid cooling of molten metal in a mold under high pressure. The injection speed and pressurization process in the die-casting process have a great impact on the quality of casting products. The molten metal is cooled and solidified under the action of the final static pressure. The size of the static pressure depends on the complexity of the die casting, the properties of the alloy and the quality requirements of the die casting. It is generally 50-500MPa. The total force acting on the die casting is determined by the mold clamping. The mold clamping mechanism is used to bear the required mold clamping force, which is realized by the elastic ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D17/26B22D17/32
Inventor 李忠明朱旭霞姜菊芳杨超珍
Owner SIJIN INTELLIGENT FORMING EQUIP CO LTD
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