Electrical control system of turnover pattern-drawing machine

An electrical control system and control system technology, applied in the field of machinery, can solve the problems affecting the casting production efficiency, low driving accuracy, unreasonable structure, etc., and achieve the effects of insensitivity to oil pollution, high control accuracy, and fewer components used.

Inactive Publication Date: 2017-12-29
纪新辉
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the equipment currently in use still has shortcomings such as unreasonable structure and low driving precision, and is prone to sand mold damage, which seriously affects casting production efficiency

Method used

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  • Electrical control system of turnover pattern-drawing machine
  • Electrical control system of turnover pattern-drawing machine
  • Electrical control system of turnover pattern-drawing machine

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with drawings and embodiments.

[0018] Such as figure 1 , The execution part of the hydraulic system mainly includes three parts of the circuit: turning, lifting and clamping. The system is required to be stable when turning over, and the synchronization accuracy of the two oil cylinders must be ensured when the mold is lifted.

[0019] The control system adopts the electro-hydraulic proportional control technology. The electro-hydraulic proportional valve is a new type of electro-hydraulic control component. Although its frequency response is lower than that of the electro-hydraulic servo valve, due to its low cost, strong anti-pollution ability and good performance, The synchronous closed-loop control system composed of it has been widely used in loops with moderate system response speed and high synchronous control accuracy. The biggest advantage of the proportional synchronous system is precise ...

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Abstract

An electrical control system for an overturning mold lifter, which uses electro-hydraulic proportional control technology. The electro-hydraulic proportional valve is a new type of electro-hydraulic control component. Although its frequency response is lower than that of the electro-hydraulic servo valve, it is low in cost, It has strong anti-pollution ability and good performance. The synchronous closed-loop control system composed of it has been widely used in the loop with moderate system response speed and high synchronous control precision. The system has a high degree of automation, stable operation, high control precision, relatively simple structure, less components, and is insensitive to oil pollution, which is suitable for working conditions. At the same time, the study provides exploration and reference for the application and research of multi-hydraulic cylinder electro-hydraulic synchronization system in terms of control mode.

Description

Technical field [0001] The invention relates to an electric control system of a turning mold lifting machine, which is suitable for the mechanical field. Background technique [0002] Sand casting is one of the main methods to obtain mechanical product blanks, and is an important basic process in the machinery industry, and sand casting complete sets of equipment is an important part of advanced manufacturing technology. Since the 1990s, my country's sand casting complete sets of equipment have developed rapidly, but there is still a certain gap from the advanced level of foreign countries in general, especially the key host equipment. The turning machine is one of the key equipment used in the resin sand molding process. Its function is to separate the pattern from the sand mold. The success or failure of this process directly affects the quality of the molding sand. However, the equipment currently in use still has shortcomings such as unreasonable structure and low drivi...

Claims

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Application Information

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IPC IPC(8): F15B11/16F15B21/02
CPCF15B11/16F15B21/02F15B2211/63
Inventor纪新辉
Owner纪新辉