WO2014071870A1

WO2014071870A1 - Carbon fiber string instrument and method of fabricating same

Info

Publication number: WO2014071870A1
Application number: PCT/CN2013/086799
Authority: WO
Inventors: 何思源; 储瑞林
Original assignee: 深圳市青河星云科技有限公司
Priority date: 2012-11-09
Filing date: 2013-11-08
Publication date: 2014-05-15
Also published as: CN102930853A

Abstract

The present invention provides a carbon fiber string instrument and a method of fabricating same. The beneficial effects of the present invention are as follows: in a method of fabricating a carbon fiber string instrument, a panel mold and a cavity mold are combined to form a shell mold in a second step, and the shell mold is placed in a heating furnace to make carbon fiber cloth inside the shell mold harden, so as to form a shell; therefore, the carbon fiber cloth inside the panel mold and the cavity mold are cured and connected through heating in the heating furnace, so that a shell is formed in one step, the process is simple, time is saved, and the work efficiency is enhanced.

Description

Carbon fiber stringed instrument and manufacturing method thereof

The present invention relates to musical instruments, and more particularly to carbon fiber stringed instruments and methods of making same.

Background technique

The current stringed instrument manufacturing method is cumbersome, complicated in process, wasteful in time, and inefficient in work, and the current stringed instrument is easily damaged, which is not conducive to long-term use.

Summary of the invention

In order to solve the problems in the prior art, the present invention provides a carbon fiber stringed instrument manufacturing method.

The present invention provides a carbon fiber stringed instrument manufacturing method, the carbon fiber stringed instrument comprising a housing, and the housing manufacturing comprises the following steps:

A. laying carbon fiber cloth in a panel mold and a cavity mold respectively, the cavity mold is composed of a cavity back plate and a cavity side plate connected to the cavity back plate;

B. The panel mold and the cavity mold are clamped to form a shell mold, and the shell mold is placed in a heating furnace to harden the carbon fiber cloth in the shell mold to form a shell;

C. taking the shell mold out of the furnace;

D. Open the housing mold and remove the housing.

As a further improvement of the present invention, the step A further comprises: placing the inflatable bag into the cavity mold, contacting the inflatable bag with the carbon fiber cloth laid in the cavity mold; in the step B, located in the housing mold The gas in the inner air bag maintains a constant pressure, and the carbon fiber cloth laid on the panel mold is closely adhered to the panel mold under the pressure of the air bag, so that the carbon fiber cloth laid in the cavity mold closely fits the cavity mold. In the step D, the inflatable bag is taken out from the opening of the casing, and the casing opening is integrally formed with the casing in the step B.

As a further improvement of the present invention, the step A includes the following steps:

A1. Applying a release agent to the panel mold and the cavity mold respectively;

A2. Lay several layers of carbon fiber cloth that are laminated together in the panel mold and the cavity mold.

As a further improvement of the present invention, the following steps are included in the step B: Bl. Apply a release agent to the outermost carbon fiber cloth of the panel mold and the cavity mold;

B2. contacting the inflatable bag with the outermost carbon fiber cloth in the cavity mold;

B3. clamping the panel mold and the cavity mold to form a shell mold;

B4. Inflating the air bag, the gas in the air bag maintains a constant pressure, and the carbon fiber cloth is closely adhered to the panel mold and the cavity mold under the pressure of the air bag;

B5. The casing mold is placed in a heating furnace to harden the carbon fiber cloth in the casing mold to form a casing.

As a further improvement of the present invention, the carbon fiber cloth is a carbon fiber prepreg.

As a further improvement of the present invention, in the step A, the multilayer carbon fiber prepreg in the panel mold is wrapped with the sound beam body; the shell is formed in the step B, and the multilayer carbon fiber prepreg is wrapped in the middle The sound beam body becomes a carbon fiber sound beam.

As a further improvement of the present invention, the carbon fiber stringing instrument manufacturing method further comprises the steps of: affixing the taken-out casing with a carbon fiber neck, the carbon fiber neck being pasted at the opening of the casing; opening on the panel of the casing by a numerically controlled machine tool f hole.

As a further improvement of the present invention, the carbon fiber stringed instrument comprises a violin made of carbon fiber, or a viola, or a cello, or a double bass, or an acoustic guitar, or a travel guitar, or a Hawaiian guitar, and a musical instrument having a casing chord.

The present invention also provides a carbon fiber stringed instrument comprising an integrally formed casing, the casing being constituted by a panel and a cavity, the cavity being constituted by a back plate and a side plate; the carbon fiber stringed instrument further comprising a carbon fiber sound beam, the carbon fiber sound beam is located in the casing, the carbon fiber sound beam comprises a sound beam body, and the sound beam body is embedded between the plurality of carbon fiber cloths of the panel, the carbon fiber sound beam and The housing is integrally formed, and the housing is made of a carbon fiber material.

As a further improvement of the present invention, the carbon fiber stringed instrument further includes a carbon fiber neck, the casing is provided with a casing opening, and the carbon fiber neck is pasted at the opening of the casing; the carbon fiber stringed instrument comprises a violin made of carbon fiber , or viola, or cello, or double bass, or acoustic guitar, or 亍 guitar, or Hawaiian guitar, and musical instruments with shell chords.

The beneficial effects of the present invention are: Because the panel mold and the cavity mold are clamped to form the shell mold in the second step, the shell mold is placed in the heating furnace to harden the carbon fiber cloth in the shell mold, thereby forming The casing, so that the panel mold and the carbon fiber cloth in the cavity mold are solidified by heating in the heating furnace, thereby forming the casing at one time, and the process cartridge is single, saving time and improving work efficiency.

DRAWINGS BRIEF DESCRIPTION OF THE DRAWINGS

Figure 2 is a schematic view showing the structure of a carbon fiber neck of the present invention.

Fig. 3 is a schematic view showing the exploded structure of the carbon fiber violin of the present invention, wherein the shape of the casing is different from the shape of the casing in Fig. 1.

detailed description

The invention discloses a carbon fiber stringed instrument manufacturing method, the carbon fiber stringed instrument comprises a casing, and the casing manufacturing comprises a first step to a fourth step: the first step: laying the carbon fiber cloth separately in the panel mold and the cavity mold, The cavity mold is composed of a cavity back plate and a cavity side plate connected to the cavity back plate. Second step: The panel mold and the cavity mold are clamped to form a shell mold, and the shell mold is placed in a heating furnace to harden the carbon fiber cloth in the shell mold to form a casing. Third step: The shell mold is taken out of the furnace. Fourth step: Open the housing mold and take out the housing.

Because the panel mold and the cavity mold are clamped to form the shell mold in the second step, the shell mold is placed in the heating furnace to harden the carbon fiber cloth in the shell mold to form the shell, so by heating The heating in the furnace makes the panel mold and the carbon fiber cloth in the cavity mold solidify and join together, thereby forming the shell at one time, and the process cartridge is single, saving time and improving work efficiency. The housing has a cavity that acts as a vocal and echo resonance when the string of the instrument is struck. The housing is equivalent to the body of a conventional stringed instrument.

The first step further includes placing the inflatable bag into the cavity mold to contact the carbon fiber cloth placed in the cavity mold; in the second step, in the air bag in the mold of the housing The gas maintains a constant pressure, and the carbon fiber cloth laid on the panel mold is closely adhered to the panel mold under the pressure of the air bag, so that the carbon fiber cloth laid in the cavity mold is closely adhered to the cavity mold; In the step, the inflatable bag is taken out from the opening of the casing, and the casing opening is integrally formed with the casing in the fourth step.

The carbon fiber cloth laid on the panel mold is closely adhered to the panel mold by the pressure of the air bag, and the carbon fiber cloth laid in the cavity mold is closely adhered to the cavity mold, so that the shell body can be better formed. The air bag is taken out through the opening of the housing, which is convenient and quick.

In the first step, further comprising step S1 to step S2, in step S1, respectively applying a release agent in the panel mold and the cavity mold; in step S2, in the panel mold and the cavity mold A plurality of layers of carbon fiber cloth which are laminated and laminated together are laid separately.

The effect of applying the release agent in the panel mold and the cavity mold respectively is to smoothly take out the casing from the casing mold after the casing is formed. The layers in step S 2 are two or more layers.

In the second step, including step W1 to step W4, in step W1, in the panel mold And applying a release agent to the outermost carbon fiber cloth of the cavity mold; in step W2, contacting the air bag with the outermost carbon fiber cloth in the cavity mold; in step W3, the panel mold and the cavity The mold is clamped to form a shell mold; in step W4, the air bag is inflated, the gas in the air bag is kept at a constant pressure, and the carbon fiber cloth is closely adhered to the panel mold and the cavity mold under the pressure of the air bag; In step W5, the casing mold is placed in a heating furnace to harden the carbon fiber cloth in the casing mold to form a casing.

By performing steps W1 to W4, the inflatable bag can be brought into contact with the outermost carbon fiber cloth of the panel mold and the cavity mold in the most compact, fast and efficient manner, thereby achieving the carbon fiber cloth and the panel mold and the cavity mold. Closely fitting purpose. In step W1, the release agent is applied to the carbon fiber cloth of the outermost layer of the panel mold and the cavity mold: the outer mold is located in the heating furnace, and the outermost part of the airbag and the panel mold and the cavity mold When the carbon fiber cloth of the layer is in contact, since the release agent is coated on the outermost carbon fiber cloth of the panel mold and the cavity mold, the carbon fiber cloth of the outermost layer of the air bag and the panel mold and the cavity mold is not stuck together. The inflatable bag is taken out in a subsequent process.

In step W3, when the panel mold and the cavity mold are clamped to form a housing mold, the housing mold is clamped by a jig. In step S2, since a plurality of layers of carbon fiber prepreg which are laminated and laminated together are laid in the panel mold and the cavity mold, the carbon fiber prepreg is not coated with glue, and the carbon fiber prepreg is in contact with each other. Paste together, process the process, improve work efficiency. Of course, if the carbon fiber cloth is not a carbon fiber prepreg, each layer of the carbon fiber prepreg is bonded by means of gluing water to achieve overlapping bonding of several layers of carbon fiber cloth.

In the first step, the multi-layer carbon fiber prepreg located in the panel mold is wrapped with the sound beam body; in the second step, the shell is formed, and the sound beam body of the multi-layer carbon fiber prepreg is wrapped Carbon fiber sound beam.

The sound beam body is a foam or wooden sound beam. When the shell mold is located in the heating furnace, the shell is hardened and integrally formed together with the carbon fiber sound beam, which is convenient to process and saves time.

The carbon fiber stringing instrument manufacturing method further comprises the steps of: affixing the taken-out housing with a carbon fiber neck, the carbon fiber neck being pasted at the opening of the housing; and opening a hole in the panel of the housing by a numerically controlled machine tool.

The carbon fiber stringed instrument includes a violin made of carbon fiber, or a viola, or a cello, or a double bass, or an acoustic guitar, or a travel guitar, or a Hawaiian guitar, and a musical instrument having a housing chord. After the shell and the carbon fiber neck are pasted, the carbon fiber stringed instrument also completes the subsequent process flow, thereby completing the production of the carbon fiber stringed instrument, and the subsequent process is common knowledge in the art, and will not be repeated here. For example, the carbon fiber stringed instrument is a violin, and after the completion of the shell and the carbon fiber neck, the subsequent processes of grinding, installing the fingerboard, installing the sound column, installing the bridge, and installing the strings are also performed.

The cavity mold of the present invention comprises a cavity back plate mold and a cavity side plate mold, the cavity back plate mold and the cavity side plate mold are spliced together, and the panel mold and the cavity mold are spliced into a shell mold.

As an embodiment, the cavity back plate mold and the cavity side plate mold are spliced together by a slider and a sliding slot, and the panel mold and the cavity mold are also spliced into a housing mold by a slider and a sliding groove.

As shown in FIG. 1 to FIG. 3, the present invention also discloses a carbon fiber stringed instrument comprising an integrally formed casing 1. The casing 1 is formed by a panel 21 and a cavity 22, and the cavity 22 is The carbon fiber stringed instrument further includes a carbon fiber sound beam 25, the carbon fiber sound beam 25 is located in the casing 1, and the carbon fiber sound beam 25 includes a sound beam body, the sound beam The body is embedded between the plurality of carbon fiber cloths of the panel 21, and the carbon fiber sound beam 25 is integrally formed with the casing 1, and the casing 1 is made of a carbon fiber material.

The sound beam body includes a foam or wooden sound beam. The housing 1 is provided with an f hole 64.

Since the casing 1 is integrally formed, the casing 1 is more durable and more curved, and the arc is smoother and more natural, and the processing time is saved. Since the sound beam body is embedded between the plurality of carbon fiber cloths of the panel 21, when the multilayer carbon fiber cloth is hardened by heating, the sound beam body is firmly fixed, and the fixing effect is good.

The carbon fiber stringed instrument further includes a carbon fiber neck 14 , the casing 1 is provided with a casing opening, and the carbon fiber neck 14 is attached to the opening of the casing; the carbon fiber stringed instrument is further equipped with a fingerboard, and the carbon fiber stringed instrument comprises A violin made of carbon fiber, or a viola, or a cello, or a double bass, or an acoustic guitar, or a travel guitar, or a Hawaiian guitar, and a musical instrument with a shell chord.

The above is a further detailed description of the present invention in connection with the specific preferred embodiments, and the specific embodiments of the present invention are not limited to the description. It is to be understood by those skilled in the art that the present invention can be delineated or substituted without departing from the spirit and scope of the invention.

Claims

Claim

A method of manufacturing a carbon fiber stringed instrument, characterized in that the carbon fiber stringed instrument comprises a casing, and the casing manufacturing comprises the following steps:

A. laying a carbon fiber cloth in a panel mold and a cavity mold, wherein the cavity mold is composed of a cavity back plate and a cavity side plate connected to the cavity back plate;

C. taking the shell mold out of the furnace;

D. Open the housing mold and remove the housing.

2 . The method of manufacturing a carbon fiber stringed instrument according to claim 1 , further comprising: inserting the inflatable bag into the cavity mold in the step A, and contacting the inflatable bag with the carbon fiber cloth laid in the cavity mold; In the step B, the gas in the air bag located in the mold of the casing maintains a constant pressure, and the carbon fiber cloth laid on the panel mold is closely adhered to the panel mold under the pressure of the air bag to be laid in the cavity mold. The inner carbon fiber cloth is in close contact with the cavity mold; in the step D, the air bag is taken out from the opening of the casing, and the casing opening is integrally formed with the casing in the step B.

3. The carbon fiber stringed instrument manufacturing method according to claim 2, further comprising the following steps in the step A:

4. The carbon fiber stringed instrument manufacturing method according to claim 3, wherein the step B includes the following steps:

B1. Apply a release agent to the outermost carbon fiber cloth of the panel mold and the cavity mold;

B3. clamping the panel mold and the cavity mold to form a shell mold;

B4. Inflate the inflatable bag, the gas in the inflatable bag maintains a constant pressure, in the inflatable bag The carbon fiber cloth is closely adhered to the panel mold and the cavity mold under pressure;

The carbon fiber stringed instrument manufacturing method according to any one of claims 1 to 4, wherein the carbon fiber cloth is a carbon fiber prepreg.

6. The carbon fiber stringed instrument manufacturing method according to claim 5, wherein in the step A, the multilayer carbon fiber prepreg in the panel mold is wrapped with the sound beam body; the shell is formed in the step B. At the same time, the sound beam body wrapped in the middle of the multi-layer carbon fiber prepreg is a carbon fiber sound beam.

The carbon fiber stringed instrument manufacturing method according to claim 5, wherein the carbon fiber stringed instrument manufacturing method further comprises the steps of: affixing the taken-out housing with a carbon fiber neck, the carbon fiber neck being pasted at the opening of the housing ; Open the hole on the panel of the housing with a CNC machine.

The carbon fiber stringed instrument manufacturing method according to claim 5, wherein the carbon fiber stringed instrument comprises a violin made of carbon fiber, or a viola, or a cello, or a double bass, or an acoustic guitar, or a travel guitar, or a Hawaiian guitar. And an instrument with a housing chord.

A carbon fiber stringed instrument, comprising: an integrally formed casing, wherein the casing is formed by a panel and a cavity, the cavity is composed of a back plate and a side plate; the carbon fiber stringed instrument is further The carbon fiber sound beam is disposed in the casing, the carbon fiber sound beam includes a sound beam body, and the sound beam body is embedded between the plurality of carbon fiber cloths of the panel, the carbon fiber sound beam Formed integrally with the housing, the housing is made of a carbon fiber material.

10. The carbon fiber stringed instrument according to claim 9, wherein: the carbon fiber stringed instrument further comprises a carbon fiber neck, the casing is provided with a casing opening, and the carbon fiber neck is attached to the casing opening; Carbon fiber stringed instruments include violins made of carbon fiber, or violas, or cellos, or double bass, or acoustic guitars, or travel guitars, or Hawaiian guitars, and musical instruments with shell chords.