CN201838307U

CN201838307U - Novel Guzheng

Info

Publication number: CN201838307U
Application number: CN2010202511530U
Authority: CN
Inventors: 赵振伟; 周威廉; 周万昊
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-07-08
Filing date: 2010-07-08
Publication date: 2011-05-18
Anticipated expiration: 2020-07-08

Abstract

The utility model discloses a novel Guzheng which is characterized in that a soundboard of a Guzheng, or the soundboard, a Guzheng head, a Guzheng tail and a baseboard of the Guzheng adopt(s) boards made of carbon fiber and having the thickness of 1.0-1.5mm. The frequency response characteristic of the Guzheng instrument is improved due to the soundboard, the Guzheng head, the Guzheng tail and the baseboard of the Guzheng made of carbon fiber; the defects that wood material cracks and deforms, is influenced by environment condition and the like can be avoided; durability of the Guzheng instrument can be ensured, and the common problems of loose sound, small volume, short service life and the like of the existing Guzheng can be solved. The testing experiment shows that the tone of the novel Guzheng has the characteristics of clear high pitch and smooth and vigorous low pitch, and the like, and the sound intensity is improved by 4.8-7.1% in average percentage compared with the sound intensity of the Guzheng made of wood.

Description

A kind of novel Zheng

Technical field

The utility model relates to the manufacturing technology of musical instrument, is specifically related to a kind of Zheng.

Background technology

Zheng is the ancient national musical instruments of China.The history of existing two thousand years is with a long history so far.The soundboard of Zheng (also being referred to as panel), side plate and have closed main body---the resonant tank that forms Zheng of base plate of bottom outlet, since the period of Three Kingdoms, Zheng historical evolution and change the tradition of not changing its resonant tank material selection timber substantially.Usually the housing of Zheng adopts hardwood or the additional hardwood of metal frame such as redwood, rosewood, has intensity preferably to guarantee it, and adopts comparatively soft, the paulownia wood of lightweight, platane wood to make the soundboard that thickness is generally (10 ± 1.5) mm.With regard to the sounding principle of Zheng,, thereby also determined the quality of Zheng acoustic quality because of the conducting effect of soundboard and the vibrational state of zither body have direct cause-effect relationship.

The selection of soundboard material has comparatively strict requirement, but wood materials forms anisotropy to a certain degree naturally, unavoidably there are difference and scar knot, the interior damage of lines and the soft degree varies of quality, problem such as damage by worms, the lines of soundboard and quality are bigger to Zheng pronunciation influence, so the Zheng soundboard normally comes divided rank according to the lines and the porousness of plate.In addition, wood materials is subject to the problem of Effect of Environmental such as humidity, temperature on every side, and it is improper to maintain, and defective such as be prone to cracking, come unglued influences serviceable life and tonequality, at present the life-span of Zheng many between 5 to 20 years, differ greatly.

As national plucked instrument with Chinese characteristics, Zheng is liked by the social common people deeply, its popularity has surmounted urheen, even western musical instrument piano, therefore also an urgent demand technological change adapts with it, change the common defect that sound is loose, volume is little of Zheng pronunciation, and problem such as serviceable life is short.

Along with the development of new material technology, a kind of material nova more and more is subjected to people's favor, and that is exactly the carbon fibre material with many good characteristics.Experience the development of decades, the manufacturing technology of domestic carbon fiber is comparatively ripe, and carbon fibre material has been applied to space flight and aviation, strategic arms, automobile, traffic etc. with its superior mechanical property.This new material technology brings new reform opportunity also for undoubtedly the manufacturing technology of musical instrument.Carbon fiber have lightweight, high-modulus, high strength, indeformable, do not ftracture, antifatigue, anticorrosive, excellent properties such as changes in environmental conditions such as resisting temperature, humidity, these excellent properties can be used to reform the musical instrument manufacturing technology undoubtedly, improve the musical instrument Frequency Response.

The utility model content

The common sound of existing Zheng pronunciation is loose, volume is little in order to solve, and problem such as serviceable life is short, and the utility model provides a kind of novel Zheng.

The Zheng that the utility model provides is characterized in that, the soundboard of described Zheng is to adopt carbon fiber board to replace wood materials to make, and the thickness of making the carbon fiber board of soundboard is the 1.0-1.5 millimeter.Perhaps,

The Zheng that the utility model provides is characterized in that, the soundboard of described Zheng and base plate are to adopt carbon fiber board to replace wood materials to make, and the thickness of making the carbon fiber board that uses is the 1.0-1.5 millimeter.Perhaps,

The Zheng that the utility model provides is characterized in that, the soundboard of described Zheng, base plate and zither head, zither tail are to adopt carbon fiber board to replace wood materials to make, and the thickness of making the carbon fiber board that uses is the 1.0-1.5 millimeter.

The preparation method of the soundboard of the Zheng that the utility model provides, base plate, zither head and zither tail plate is as follows: the carbon fiber knit of high-modulus is become carbon cloth, again with the laminates epoxy resin-impregnated, by vacuum suction, high temperature (130 ℃), high pressure (500 tons of press), the heat of solidification is molded, make the carbon fiber board of specific modulus far above present all sheet materials, resin content: about 30%, thickness:, obtain required carbon fiber Zheng soundboard, base plate, the first plate of zither and zither tail plate respectively in 1.0-1.5 millimeter scope.

By expert appraisal, the Zheng that the Zheng that the utility model provides, its sympathetic response effect obviously are better than using wooden boards to be made, the tone color of performance sound having the simple and honest characteristics such as mellow and full of clear bright, the bass of high pitch, not only improved volume, also promoted the tone color of Zheng and prolonged lingering sound.

Adopting at the Zheng soundboard on the basis of carbon fiber board preparation, further adopt carbon fiber board to make base plate, zither head and the zither portion of Zheng, is in order further to improve the Frequency Response of Zheng resonant tank and its structure to be optimized.

The Zheng that provides for the utility model has carried out experiment measuring, in 40-70 decibel measurement range, with the acoustic ratio of the Zheng of wooden boards, on average improving number percent is 4.8%-7.1%.

Beneficial effect:

1, carbon fibre material specific strength and specific modulus can reach 2 to 4 times of platane wood, have the performance that obviously is better than platane wood, paulownia wood, can the fine requirement of satisfying the desirable soundboard material of Zheng.The Zheng soundboard of making by carbon fibre material that the utility model provides, and the first plate of zither, base plate with holes and zither tail plate have lightweight, high ratio modulus, high strength, indeformable, do not ftracture, anticorrosive, characteristics such as changes in environmental conditions such as resisting temperature, humidity, can guarantee that Zheng is durable in use, realize the dual optimization of Zheng instrument structure and performance.

2, adopt carbon fiber board, guarantee the homogenous properties of Zheng soundboard, make the resonance energy of soundboard evenly realize, the difference of avoiding sound to bring because of structure in the material propagation arrives the tonequality fax, and the effect that tone color is unified obtains the whole harmonious musical sound that resonates.

3, the thickness of carbon fiber board is easy to change and accurately control, thereby the modulus and the intensity that are easy to as required design Zheng soundboard and the first plate of zither, base plate with holes and the thickness of zither tail plate.Carbon fiber board is easy to machine-shaping and streamline production, makes the manufacture craft of Zheng simplify; Simultaneously, can guarantee the consistance of Zheng material.

4, on soundboard changes the basis,, can further reach and improve tone color and make Zheng lightweight, durable purpose further at Zheng base plate, zither head and zither portion carbon fiber board.

Description of drawings

Fig. 1 is the structural representation of first plate of a kind of Zheng soundboard that provides of the utility model and zither and zither tail plate.Among the figure, 1 is the first plate of zither of Zheng, and 2 is the Zheng soundboard, and 3 is zither tail plate.

Fig. 2 is the structural representation of the Zheng base plate that provides of the utility model.Among the figure, 4 is the base plate with holes of Zheng.

Embodiment

Embodiment 1 as shown in Figure 1, it is to make with carbon fiber board that the utility model provides a kind of soundboard 2 of Zheng, the thickness of Zheng soundboard 2 is 1-1.5mm.

The method for making with the soundboard 2 of a kind of Zheng of carbon fiber preparation that the utility model provides is as follows: the carbon fiber knit of high-modulus is become carbon cloth, again with the laminates epoxy resin-impregnated, by vacuum suction, in temperature is 130 ℃, hot-forming through high pressure (500 tons of press) with the mould one-step solidification, obtain carbon fiber Zheng soundboard, plate thickness: at 1.0-1.5 millimeter scope, resin content: about 30%.

By expert appraisal, what the utility model provided prepares the Zheng of soundboard with carbon fiber, its sympathetic response effect obviously is better than using the Zheng of wooden boards preparation, the tone color of playing sounds having the simple and honest characteristics such as mellow and full of clear bright, the bass of high pitch, improve volume, also promoted the tone color of Zheng and prolonged lingering sound.

Measure for the Zheng that the utility model provides with the preparation of carbon fiber Zheng soundboard.In 40-70 decibel measurement range, the sound intensity of itself and wooden Zheng soundboard contrast situation is as follows:

1, be that on average to improve number percent be 6.7% for the sound intensity of the Zheng made of the carbon fiber soundboard of 1mm with thickness;

2, be that on average to improve number percent be 7.1% for the sound intensity of the Zheng made of the carbon fiber soundboard of 1.5mm with thickness;

Embodiment 2 adopts on the basis of carbon fibre material preparation at Zheng soundboard 2 shown in Fig. 1-2, and the first plate 1 of the zither of Zheng, base plate 4 and zither tail plate 3 with holes also adopt carbon fiber board to make, and the thickness of carbon fiber board is 1.2mm.

For the Zheng soundboard 2 in the present embodiment, and the method for making of the first plate 1 of zither, base plate 4 with holes and zither tail plate 3 and step are with embodiment 1, it is 130 ℃ in temperature at last, hot-forming through 500 tons of press with the mould one-step solidifications, obtain Zheng soundboard 2 that carbon fiber board makes and the first plate 1 of zither, base plate 4 and zither tail plate 3 with holes respectively.

Zheng for making with carbon fiber Zheng soundboard 2, the first plate 1 of zither, zither tail plate 3 and base plate 4 with holes by expert appraisal, has the good sound quality effect, has promoted the tone color of Zheng and has prolonged lingering sound, and improved volume.Measure for made Zheng, in 40-70 decibel measurement range, the contrast of the sound intensity of itself and wooden Zheng is average to improve 7%.

Claims

1. a novel Zheng is characterized in that, the soundboard of described Zheng is to be 1.0 to 1.5 millimeters soundboard with the thickness that carbon fibre material is made.

2. a kind of novel Zheng as claimed in claim 1 is characterized in that, the base plate with holes of described Zheng is the thickness made with carbon fibre material at 1.0 to 1.5 millimeters plate.

3. a kind of novel Zheng as claimed in claim 1 is characterized in that, the zither head of described Zheng, zither tail and base plate with holes all are the thickness made with carbon fibre material at 1.0 to 1.5 millimeters plate.