Brass instrument piston and manufacturing method thereof

Abstract

The invention relates to a brass musical instrument piston and a manufacturing method thereof. The piston is composed of a piston outer body, a piston core and a spring tube. The piston outer body is a metal cylinder. The piston core and the spring tube are both The piston core is a plastic cylinder, and the plastic cylinder of the piston core is provided with a plurality of ventilation holes. The plastic cylinder is divided into two parts longitudinally cut from the middle, and there are multiple holes between the two half cylinders. An assembled positioning pin, the spring tube is cylindrical, with a spring and a spring card inside the cylinder, and a piston handle at the upper end of the spring tube. The invention has the advantages of not being easy to corrode, light in weight, labor-saving on keys, accurate product positioning, improved playing effect, durable and the like. The manufacturing method of the brass musical instrument piston provided by the invention has the advantages of simple process, high product qualification rate and high production efficiency The advantages.

Description

technical field [0001] The invention relates to the technical field of musical instrument production, in particular to a brass instrument piston and a manufacturing method thereof. Background technique [0002] Piston-type buttons are widely used in brass instruments as parts for adjusting pitch. At present, the pistons of piston-type buttons are made of copper metal materials. The improvement of the pistons is limited to the processing accuracy and positioning accuracy. When making a copper piston, it is necessary to make the piston tube first, then drill holes, weld the internal vent holes, and turn the circle. The manufacturing process is complicated. The piston is required to be light in weight and flexible to bounce, so the copper pipes and vent holes are manually welded with thinner copper materials. Because the copper material is very thin, after playing for a long time, the copper material is easily damaged after being corroded by saliva and air, and then the entire...

AI Technical Summary

Problems solved by technology

Because the copper material is very thin, after playing for a long time, the copper material is easily damaged after being corroded by saliva and air, and then the entire piston key is damaged, which is the main cause of damage to brass instruments.

In addition, the accuracy of manual welding is low, the product quality is poor, the scrap rate is high, and the production efficiency is low, which greatly increases the production cost of the piston.

Images