Automatic ignition and air entraining device and method for full automatic casting machine

Abstract

The invention discloses an automatic ignition and air entraining device for a full automatic casting machine, which comprises a main gas inlet pipe for natural gas and a group of parallel sub-gas inlet pipes for natural gas; a pressure regulating valve and a main solenoid valve are arranged at a front pipeline positioned on the sub-gas inlet pipes on the main gas inlet pipe; each sub-gas inlet pipe is provided with a sub-solenoid valve, a combustion nozzle and an electronic ignition device sequentially; the end part of each sub-gas inlet pipe is connected with an ignition pipe; the ignition pipe is provided with a group of obliquely downward gas outlet holes; the main solenoid valve and each sub-solenoid valve are connected to a PLC (Programmable Logic Controller). When the casting is started, the main solenoid valve and the sub-solenoid valve of the natural gas of a casting box position are opened; the electronic ignition device is used for automatically igniting mixed natural gas of the ignition pipe of the box position and accordingly igniting combustible gas discharged from a cavity and each gas hole of a sand core; the gas discharge of the cavity is accelerated; and then, the solenoid valves of the natural gas are closed. The automatic ignition and air entraining device for the full automatic casting machine is timely and accurate in ignition and air entraining, the defects of casting gas holes are reduced, the labor cost is saved, and the personal safety accidents are avoided.

Description

technical field [0001] The invention relates to the field of mechanical manufacturing, in particular to an ignition and air-inducing device and method for a fully automatic pouring machine, in particular to a brand-new automatic ignition and air-inducing device and method for a fully automatic pouring machine. Background technique [0002] At present, enterprises in the domestic automobile industry mass-produce engine castings, and generally use automatic molding lines. The advantages reflected in the more reasonable distribution are becoming more and more obvious. The castings produced have smoother surface and more accurate dimensions, but there are also shortcomings of poor cavity exhaust during pouring, and the matching automatic pouring The machine has no automatic ignition and exhaust function, resulting in a high rejection rate of casting pores. In order to reduce the scrap rate, only manual ignition and exhaust can be used. Since there are more than 30 exhaust gas n...

AI Technical Summary

Problems solved by technology

[0002] At present, enterprises in the domestic automobile industry mass-produce engine castings, and generally use automatic molding lines. The advantages reflected in the more reasonable distribution are becoming more and more obvious. The castings produced have smoother surface and more accurate dimensions, but there are also shortcomings of poor cavity exhaust during pouring, and the matching automatic pouring The machine has no automatic ignition and exhaust function, resulting in a high rejection rate of casting pores

In order to reduce the scrap rate, only manual ignition and exhaust can be used. Since there are more than 30 exhaust gas needles, not only the labor intensity is high, but also it is impossible to ignite all the gas needle holes in a short time, and the poor exhaust gas cannot be completely solved. What is more serious is that the automatic pouring machine adopts manual ignition operation is very dangerous, and it is very easy to cause personal injury accidents

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