Die plate for sand casting and vertical casting of flying wheel

Abstract

The invention discloses a die plate for sand casting and vertical casting of a flying wheel. The die plate comprises a first die plate and a second die plate, wherein the first die plate comprises a first die baseplate, four first casting body dies, and a first gating and risering die; the first casting body dies and the first gating and risering die are formed on the upper surface of the first die baseplate; the second die plate comprises a second die baseplate, four second casting body dies, and a second gating die; and the second casting body dies and the second gating die are formed on theupper surface of the second die baseplate. The die plate for sand casting and vertical casting of the flying wheel has the beneficial effects that a flying wheel casting mold cavity, gating system and feeding system can be formed in a sand match as long as a first model and a second model of a flying wheel model are correspondingly sleeved with sand boxes, thereby facilitating the manufacturing of a sand mold and improving the production efficiency; and the die plate is suitable for the large-batch production of flying wheel castings.

Description

1. Technical field [0001] The invention belongs to the field of flywheel casting, in particular to a template for vertical casting of flywheel sand casting. 2. Background technology [0002] A flywheel is a disc-shaped part with a large moment of inertia. For a four-stroke engine, work is performed once every four piston strokes, that is, only the power stroke works, and the exhaust, intake and compression strokes consume work. Therefore, the torque output by the crankshaft changes periodically, and the crankshaft speed is also unstable. In order to improve this situation, a flywheel is installed at the rear end of the crankshaft. Its function is to store the engine energy, overcome the resistance of other components, and make the crankshaft rotate evenly. [0003] The existing flywheel is made by casting. When the structure of the flywheel is complex, especially the flywheel with complex inner cavity, the existing mold is difficult to meet the requirements. Patent docume...

AI Technical Summary

Problems solved by technology

However, the sand mold cavity of this patent document is composed of separate upper coated sand shell, lower coated sand shell and sand core. Each part needs to be manufactured separately, and the process is complicated. It is a thin-walled part with complex shape, which requires high precision and is not easy to manufacture. Every time a casting is cast, it is necessary to inspect and maintain the various parts that form the sand mold cavity. The reusability is poor and the production efficiency is greatly reduced.

Images