A Short Carbon Fiber Reinforced Resin-Based Composite Piano Case Accordion

Abstract

The invention belongs to the field of accordion production and particularly relates to a rockcase accordion made of short carbon fiber reinforced resin matrix composite materials. The rockcase accordion comprises a keyboard, an air bellow, a bass and an accordion cover, wherein the keyboard, the air bellow and the bass are sequentially connected, the accordion cover is fixedly installed on the keyboard, and the keyboard is composed of a keyboard voice box, keys and keyboard metaphone devices. The keys and the keyboard metaphone devices are installed on the keyboard voice box, the bass is composed of a bass voice box, bass beans and bass metaphone devices, the bass beans and the bass metaphone devices are installed on the bass voice box, and the rockcase accordion is characterized in that the keyboard voice box is made of the short carbon fiber reinforced resin matrix composite materials in an integrally-formed mode, and the bass voice box is made of the short carbon fiber reinforced resin matrix composite materials in an integrally-formed mode. The rockcase accordion made of the short carbon fiber reinforced resin matrix composite materials has the advantages of being good in tone, light in weight, not easy to damage, easy to manufacture, low in cost and the like, and is highly innovative.

Description

technical field [0001] The invention belongs to the field of accordion production, in particular to a short carbon fiber reinforced resin-based composite piano case accordion. Background technique [0002] The accordion is a free-reed air-sounding instrument, which relies on the airflow to excite the vibration of the reed to produce sound. It is a good ensemble and accompaniment instrument, and it is also a commonly used instrument in music teaching. At present, the piano box of the accordion includes a keyboard speaker, a bass speaker and the like. The keyboard speaker and bass speaker are the shell of the accordion and the main body of the accordion frame structure. The keyboard speaker and bass speaker are mostly made of red pine, white pine, maple and other wood, and the surface is covered with celluloid sheets of various colors. . In the past, there were ten disadvantages in making accordion parts with wood as raw material: first, the raw material was expensive and th...

AI Technical Summary

Problems solved by technology

In the past, there were ten disadvantages in making accordion parts with wood as raw material: first, the raw material was expensive and the utilization rate was low, resulting in high cost

Since the timber used requires a long growth period, usually decades or hundreds of years old, and the demand is large, the price of these timbers is relatively high; and the domestic supply of timber is insufficient, so it needs to rely on imports, which further increases the production cost.

Second, heavy

The third is that there are many production processes and the process is complicated

Fourth, the production cycle is long

Fifth, it takes a long time for funds to take up, and it will take more than two years from the purchase of wood to the completion of production

Sixth, it takes up a lot of space

The storage time of raw materials is long, the processing procedures are many, and the assembly line is long, all of which take up space

Seven, the product is easily damaged

Ten is low production efficiency

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