Background technology
At present, domestic casting ball generally all is to adopt the metal die hand teeming to produce, and production environment is abominable, and labor intensity is big, and labor productivity is low, and product quality is difficult to guarantee.After adopting mechanical production line, though improved production efficiency, the metal die die cavity is covered sand before, need carry out preheating to guarantee to cover the sand effect to the metal die die cavity.Can only adopt at present below production line and to place simple and easy coal stove or oil oven toasts preheating to metal die, not only the temperature of mould and die preheating is difficult to control, and covering the sand effect can not guarantee.And on-the-spot fume amount is big, the energy consumption height, and severe operational environment, production efficiency are also very low.
The utility model content
The purpose of this utility model provides a kind of preheating device of casting the ball production line metal die, promptly below the rolling type horizontal feed frame of metal casting ball production line, gas burner is set, use the metal die on the producer gas heating production line, it is heated to carries out next road die cavity after certain temperature and cover the sand operation, to guarantee the serialization operation of casting ball production line.
The technical solution of the utility model is as follows:
Casting ball production line metal die preheating device, include rolling type metal die horizontal feed frame, gas generator, gas pipeline and coal gas burner, it is characterized in that two to four groups of coal gas burners of metal die horizontal feed frame below installation, described coal gas burner is made up of pipe row's formula coal gas burner and steady flame grille, and coal gas burner connects with the gas producer stove by gas pipeline and valve.
Described coal gas burner is provided with steady flame grille, and steady flame grille is by heat-resisting or refractory material manufacturing.
The utility model preheating device is taked the producer gas heating, and valve is installed on the gas pipe, below the rolling type horizontal feed frame of casting ball production line two to four groups of coal gas burners is set, and can satisfy the preheating needs to metal die.Metal die intermittently moves on the horizontal feed frame of casting ball production line, and coal gas burner can heat metal die after igniting.Because steady flame grille is set on coal gas burner, can improve the combustion conditions of burner, guarantee that coal gas evenly burns, obviously improve the reliability and the efficiency of combustion of coal gas burner.Coal gas burner is fixedly mounted on the horizontal feed frame below of casting ball production line, by valve control gas using quantity, but the preheat temperature of flexible modulation metal die.
The utility model has been realized the automatic preheating to casting ball production line upper mold, creates necessary condition for follow-up mold cavity covers the sand operation, this utility model modern design, energy-conserving and environment-protective, and operation and maintenance are all very convenient.Guaranteed the serialization operation of casting ball production line.
The specific embodiment
Casting ball production line upper mold preheating device, include rolling type metal die horizontal feed frame, gas generator, gas pipeline 1 and coal gas burner 2, two to four groups of coal gas burners 2 (Figure 1 shows that two groups) are installed below the horizontal feed frame of casting ball production line, and described coal gas burner 2 is made up of pipe row's formula coal gas burner 3 and steady flame grille 4.Steady flame grille 4 is by heat-resisting or refractory material manufacturing, and coal gas burner 2 links with gas generator by gas pipeline 1 and valve 5.Steady flame grille 4 forms a circle at the periphery of coal gas burner 2, can be circular, polygon, also can arrange between the coal gas burner 3 simultaneously to be provided with at each, plays compartmentation.