阅读说明：本技术 一体成型吉他及其生产工艺 (Integrally formed guitar and production process thereof ) 是由 赵柯 林龙 肖文启 于 2021-08-19 设计创作，主要内容包括：本发明涉及一体成型吉他及其生产工艺,依次包括以下步骤,①包料,气囊外侧包卷碳纤维布,初步包出类似吉他形状；②入模成型,将包好碳纤维布的气囊放入一体成型模具内,模具合模后往气囊内部充气,气囊涨大使碳纤维布充分填充到一体成型模具内,对一体成型模具加压加热,碳纤维布紧密固化成型出吉他主体；③脱模下料,取出一体成型模具内的吉他主体,去除吉他主体毛刺,气囊放气体积缩小然后被取出得到完整的吉他主体,生产工艺步骤合理,吉他主体在一体成型模具内一次成型制得,保证琴头、琴颈、琴桶加工精密度和平整度,提高产品质量,提高生产效率。(The invention relates to an integrally formed guitar and a production process thereof, which sequentially comprises the following steps of wrapping materials, wrapping carbon fiber cloth outside an air bag, and preliminarily wrapping the shape similar to a guitar; secondly, molding the guitar body, namely placing the air bag wrapped with the carbon fiber cloth into an integral molding die, inflating the air bag after the die is closed, expanding the air bag to fully fill the carbon fiber cloth into the integral molding die, pressurizing and heating the integral molding die, and tightly curing the carbon fiber cloth to form the guitar body; the guitar main part in the integrated into one piece mould is taken out in drawing of patterns unloading, gets rid of guitar main part burr, and gasbag gassing volume reduces then is taken out and obtains complete guitar main part, and production technology step is reasonable, and the guitar main part one shot forming makes in the integrated into one piece mould, guarantees headstock, neck, barrel machining precision and roughness, improves product quality, improves production efficiency.)

1. An integrated guitar production process is characterized in that: the method sequentially comprises the following steps of,

firstly, wrapping materials, wrapping carbon fiber cloth outside an air bag, and primarily wrapping the air bag into a shape similar to a guitar;

secondly, molding the guitar body, namely placing the air bag wrapped with the carbon fiber cloth into an integral molding die, inflating the air bag after the die is closed, expanding the air bag to fully fill the carbon fiber cloth into the integral molding die, pressurizing and heating the integral molding die, and tightly curing the carbon fiber cloth to form the guitar body;

demoulding and blanking are carried out, the guitar body in the integrated forming die is taken out, burrs of the guitar body are removed, the air-bag deflation volume is reduced, and then the air-bag deflation volume is taken out to obtain the complete guitar body.

2. The production process of an integrally formed guitar according to claim 1, wherein: in the first step, a plurality of layers of carbon fiber cloth are wrapped outside the air bag, and different layers of carbon fiber cloth have different thicknesses and fiber angles to realize local reinforcement.

3. The production process of an integrally formed guitar according to claim 1, wherein: the integrated into one piece mould includes public template and female template, and public template lid closes the female template, and the inside musical instrument head shaping groove, musical instrument neck shaping groove, the musical instrument bucket shaping groove that is equipped with of female template, musical instrument head shaping groove intercommunication musical instrument neck shaping groove, musical instrument neck shaping groove intercommunication musical instrument bucket shaping groove, and the gasbag is put into musical instrument neck shaping groove, musical instrument bucket shaping groove.

4. The production process of an integrally formed guitar as claimed in claim 3, wherein: install musical instrument bucket slider in the master form board, musical instrument bucket slider includes left slant slider, right slant slider, left horizontal slider, right horizontal slider, lower vertical slider according to the position distribution, and left slant slider, right slant slider, left horizontal slider, right horizontal slider, lower vertical slider surround and form musical instrument bucket shaping groove, and the removal of musical instrument bucket slider makes things convenient for the guitar musical instrument bucket to break away from musical instrument bucket shaping groove during the guitar drawing of patterns.

5. The production process of an integrally formed guitar as claimed in claim 4, wherein: the female die plate is provided with a left oblique sliding groove, a right oblique sliding groove, a left transverse sliding groove, a right transverse sliding groove and a lower longitudinal sliding groove, a left oblique sliding block is slidably installed in the left oblique sliding groove, the left oblique sliding groove guides the left oblique sliding block to move along the left oblique upper direction, a right oblique sliding block is slidably installed in the right oblique sliding groove, the right oblique sliding groove guides the right oblique sliding block to move along the right oblique upper direction, a left transverse sliding block is slidably installed in the left transverse sliding groove, the left transverse sliding groove guides the left transverse sliding block to move along the left transverse horizontal direction, the right transverse sliding block is slidably installed in the right transverse sliding groove, the right transverse sliding groove guides the right transverse sliding block to move along the right transverse horizontal direction, the lower longitudinal sliding block is slidably installed in the lower longitudinal sliding groove, and the lower longitudinal sliding groove guides the lower longitudinal sliding block to move along the lower longitudinal vertical direction.

6. The production process of an integrally formed guitar as claimed in claim 3, wherein: public template below installation musical instrument head upper shaping piece, female template top installation musical instrument head lower shaping piece, musical instrument head shaping groove is closed by musical instrument head upper shaping piece and musical instrument head lower shaping piece lid and is formed, and the interior knob hole projection of installation of musical instrument head shaping inslot, the musical instrument head inserts the shaping of musical instrument head and goes out the first knob hole at musical instrument head shaping inslot shaping time knob hole projection.

7. The production process of an integrally formed guitar according to claim 1, wherein: in the second step, the air bag is inflated for five times, wherein the first time is inflated for 0.4-0.5 kg/c square meter for 5-6 seconds, the second time is inflated for 3-4 kg/c square meter for 300-305 seconds, the third time is inflated for 8-9 kg/c square meter for 600-605 seconds, the fourth time is inflated for 12-13 kg/c square meter for 1200-1205 seconds, the fifth time is inflated for 0.1-0.2 kg/c square meter for 5-6 seconds.

8. The production process of an integrally formed guitar according to claim 1, wherein: in the second step, the integrally formed mold is pressed at 90-100 tons and heated at 150-160 ℃.

9. An integrated into one piece guitar, its characterized in that: the integrally formed guitar of any of claims 1-8 is produced by the process.

Technical Field

The invention relates to the field of guitars, in particular to an integrally formed guitar and a production process thereof.

Background

The guitar is a plucked musical instrument, its body is mainly made up of headstock 01, neck 02, barrel 03 as shown in fig. 1, headstock 01 is solid and neck 02, barrel 03 are hollow, the existing guitar body is the split type structure namely headstock 01, neck 02, barrel 03 after their making separately, and then through glue binding together, there is no process that can form headstock 01, neck 02, barrel 03 of the guitar body at one time in the existing market, the defect of this kind of split type guitar production process is that first, the manufacturing cycle is long, the parameter such as the cooperation of each part, product flatness, etc. can not be guaranteed; secondly, the local position cannot be reinforced, and the guitar barrel realizes tone quality adjustment through the sound beam, so that the tone quality is unstable; thirdly, a headstock knob hole 04 is formed in the headstock 01, the headstock knob hole 04 is used for enabling a knob rotary column to extend out so as to adjust strings of the guitar, and the headstock knob hole 04 is manufactured in a method that the headstock is manufactured firstly, then the headstock knob hole is machined through an electric drill, machining accuracy cannot be guaranteed, and the aperture, the position and the like of the headstock knob hole are not accurate enough, so that the quality of the guitar is affected.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides an integrally formed guitar and a production process thereof, and the specific technical scheme is as follows:

the production process of the integrally formed guitar sequentially comprises the following steps,

firstly, wrapping materials, wrapping carbon fiber cloth outside an air bag, and primarily wrapping the air bag into a shape similar to a guitar;

secondly, molding the guitar body, namely placing the air bag wrapped with the carbon fiber cloth into an integral molding die, inflating the air bag after the die is closed, expanding the air bag to fully fill the carbon fiber cloth into the integral molding die, pressurizing and heating the integral molding die, and tightly curing the carbon fiber cloth to form the guitar body;

demoulding and blanking are carried out, the guitar body in the integrated forming die is taken out, burrs of the guitar body are removed, the air-bag deflation volume is reduced, and then the air-bag deflation volume is taken out to obtain the complete guitar body.

As a preferred scheme of the production process of the integrally formed guitar, in the step I, a plurality of layers of carbon fiber cloth are wrapped outside the air bag, and different layers of carbon fiber cloth have different thicknesses and fiber angles to realize local reinforcement.

As a preferred scheme of the production process of the integrally formed guitar, the integrally formed mold comprises a male mold plate and a female mold plate, the male mold plate covers the female mold plate, a head forming groove, a neck forming groove and a barrel forming groove are formed in the female mold plate, the head forming groove is communicated with the neck forming groove, the neck forming groove is communicated with the barrel forming groove, and the air bag is placed in the neck forming groove and the barrel forming groove.

As a preferred scheme of the production process of the integrally formed guitar, the barrel sliding block is mounted in the female die plate and comprises a left oblique sliding block, a right oblique sliding block, a left transverse sliding block, a right transverse sliding block and a lower longitudinal sliding block which are distributed according to the direction, the left oblique sliding block, the right oblique sliding block, the left transverse sliding block, the right transverse sliding block and the lower longitudinal sliding block surround to form a barrel forming groove, and the barrel sliding block moves to facilitate the guitar barrel to be separated from the barrel forming groove during guitar demoulding.

As a preferred scheme of the production process of the integrally formed guitar, the female die plate is provided with a left oblique sliding chute, a right oblique sliding chute and a left transverse sliding chute, the left oblique sliding block is guided to move along the left oblique upper direction by the left oblique sliding groove, the right oblique sliding block is slidably installed in the right oblique sliding groove, the right oblique sliding groove is guided to move along the right oblique upper direction by the right oblique sliding groove, the left lateral sliding block is slidably installed in the left lateral sliding groove, the left lateral sliding groove is guided to move along the left lateral horizontal direction by the left lateral sliding groove, the right lateral sliding block is slidably installed in the right lateral sliding groove, the right lateral sliding groove is guided to move along the right lateral horizontal direction by the right lateral sliding groove, the lower longitudinal sliding block is slidably installed in the lower longitudinal sliding groove, and the lower longitudinal sliding block is guided to move along the lower longitudinal vertical direction by the lower longitudinal sliding groove.

As a preferred scheme of the production process of the integrally formed guitar, the upper headstock forming block is mounted below the male template, the lower headstock forming block is mounted above the female template, the headstock forming groove is formed by covering the upper headstock forming block and the lower headstock forming block, the knob hole convex column is mounted in the headstock forming groove, and the knob hole convex column is inserted into the headstock to form the headstock knob hole when the headstock is formed in the headstock forming groove.

As a preferable scheme of the production process of the integrally formed guitar, in the second step, the air bag inflation mode is divided into five times of inflation, the first time of inflation is 0.4-0.5 kg/c square meter and the time is 5-6 seconds, the second time of inflation is 3-4 kg/c square meter and the time is 300-305 seconds, the third time of inflation is 8-9 kg/c square meter and the time is 600-605 seconds, the fourth time of inflation is 12-13 kg/c square meter and the time is 1200-1205 seconds, the fifth time of inflation is 0.1-0.2 kg/c square meter and the time is 5-6 seconds.

As a preferred scheme of the production process of the integrally formed guitar, in the second step, 90-100 tons of pressure and 150-160 ℃ of heating temperature are applied to the integrally formed mold.

An integrally formed guitar is manufactured by the integrally formed guitar production process.

The invention has the beneficial effects that: the production process has the advantages that the steps are reasonable, the guitar main body is formed in the integrated forming die in one step, the processing precision and the flatness of the head, the neck and the barrel are guaranteed, the product quality is improved, the production efficiency is improved, the local reinforcement of the guitar can be realized by adjusting the thickness and the fiber angle of the carbon fiber cloth wrapped and rolled, the requirements of guitars with different specifications are met, and the application range is wide.

Drawings

FIG. 1 is a perspective view of a guitar body;

FIG. 2 is a process flow diagram of the present invention

FIG. 3 is a perspective view of the integrally formed mold of the present invention;

FIG. 4 is a perspective view of the master template and barrel slides of the present invention;

FIG. 5 is a perspective view of the barrel slide of the present invention;

FIG. 6 is a perspective view of a master template of the present invention;

FIG. 7 is a schematic view of the sliding direction of the slides of the present invention;

FIG. 8 is a perspective view of the male mold plate, the female mold plate, the headstock upper forming block, and the headstock lower forming block of the present invention in combination;

FIG. 9 is a perspective view of the upper headstock forming block and the lower headstock forming block of the present invention when they are closed;

FIG. 10 is a perspective view of a first knob hole post mounting embodiment of the present invention;

FIG. 11 is a perspective view of a second embodiment of the knob hole stud installation of the present invention.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:

in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the positions or elements referred to must have specific orientations, be constructed and operated in specific orientations, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.

As shown in fig. 2 and 3, the production process of the integrally formed guitar sequentially comprises the following steps,

firstly, wrapping materials, wrapping carbon fiber cloth outside an air bag 1, and primarily wrapping the materials into a shape similar to a guitar;

secondly, molding, namely putting the air bag 1 wrapped with the carbon fiber cloth into an integral molding die, inflating the air bag 1 after the die is closed, expanding the air bag 1 to fully fill the carbon fiber cloth into the integral molding die, pressurizing and heating the integral molding die, and melting the carbon fiber cloth into a whole to be tightly solidified to form a guitar main body;

demoulding and blanking are carried out, the guitar body in the integrated forming die is taken out, burrs of the guitar body are removed, the air-out volume of the air bag 1 is reduced, and then the air bag is taken out to obtain the complete guitar body.

Specifically, in step (i), a plurality of layers of carbon fiber cloth are wrapped outside the airbag 1, and different layers of carbon fiber cloth have different thicknesses and fiber angles to realize local reinforcement, for example, the plurality of layers of carbon fiber cloth include a first layer, a second layer and a third layer which are stacked from top to bottom, the first layer is 3K woven cloth, the second layer is carbon fiber cloth with a fiber angle of 0 degree, and the third layer is carbon fiber cloth with a fiber angle of 45 degrees. For example, the multilayer carbon fiber cloth layer includes the first layer, the second layer, the third layer, the fourth layer, the fifth layer, the sixth layer, the seventh layer that stack from top to bottom, and the first layer is the carbon fiber cloth that the fibre angle is 45 degrees, and the second layer is the carbon fiber cloth that the fibre angle is 30 degrees, and the third layer is the carbon fiber cloth that the fibre angle is 0 degrees, and the fourth layer is the carbon fiber cloth that the fibre angle is 90 degrees, and the fifth layer is the carbon fiber cloth that the fibre angle is 60 degrees, and the sixth layer is 3K woven fabrics, and the seventh layer is 1K woven fabrics. The 3K woven cloth is a cloth pattern formed by weaving 3000 fibers in a crossed manner on each bundle of carbon yarns, and the types of the 3K woven cloth include 3K plain weaving, 3K inclined weaving and the like, which are called 3K for short; the 1K woven cloth is a cloth pattern formed by weaving 1000 fibers in a crossed manner for each bundle of carbon yarns, and the types of the 1K woven cloth include 1K plain weave, 1K woven diagonal and the like, which are called 1K for short; the fiber angle refers to the fiber direction of the carbon fiber cloth on the main load of the product, and local reinforcement can be realized by adjusting the local thickness by arranging the carbon fiber cloth in a well, rice, rich and other shapes in a winding distribution manner.

As shown in fig. 3 and 4, the integrated forming mold comprises a male mold plate 2 and a female mold plate 3, the male mold plate 2 covers the female mold plate 3, a head forming groove 31, a neck forming groove 32 and a barrel forming groove 33 are arranged inside the female mold plate 3, the head forming groove 31 is communicated with the neck forming groove 32, the neck forming groove 32 is communicated with the barrel forming groove 33, the air bag 1 is placed into the neck forming groove 32 and the barrel forming groove 33, when the male mold plate 2 and the female mold plate 3 are closed and heated under pressure, carbon fiber cloth can be melted to be filled in gaps formed among the air bag 1, the head forming groove 31, the neck forming groove 32 and the barrel forming groove 33, and then the guitar body is formed.

As shown in fig. 4 and 5, the barrel slide block 4 is installed in the mother template 3, the barrel slide block 4 comprises a left slant slide block 41, a right slant slide block 42, a left transverse slide block 43, a right transverse slide block 44 and a lower longitudinal slide block 45 which are distributed according to the azimuth, the left slant slide block 41, the right slant slide block 42, the left transverse slide block 43, the right transverse slide block 44 and the lower longitudinal slide block 45 surround to form a barrel forming groove 33, and the barrel slide block moves to facilitate the guitar barrel to separate from the barrel forming groove 33 during guitar demoulding.

As shown in fig. 6 and 7, the female mold plate 3 is provided with a left oblique sliding slot 34, a right oblique sliding slot 35, a left transverse sliding slot 36, a right transverse sliding slot 37, and a lower longitudinal sliding slot 38, wherein a left oblique sliding block 41 is slidably mounted in the left oblique sliding slot 34, a right oblique sliding block 43 is slidably mounted in the right oblique sliding slot 35, the left transverse sliding block 43 is slidably mounted in the left transverse sliding slot 36, a right transverse sliding block 44 is slidably mounted in the right transverse sliding slot 37, and a lower longitudinal sliding block 45 is slidably mounted in the lower longitudinal sliding slot 38, when the airbag 1 needs to be taken or placed, the left oblique sliding slot 34 guides the left oblique sliding block 41 to move in the left oblique upper direction, the right oblique sliding slot 35 guides the right oblique sliding block 43 to move in the right oblique upper direction, the left transverse sliding slot 36 guides the left transverse sliding block 43 to move in the left transverse horizontal direction, the right transverse sliding slot 37 guides the right transverse sliding block 44 to move in the right transverse horizontal direction, and the lower longitudinal sliding slot 38 guides the lower longitudinal sliding block 45 to move in the lower longitudinal vertical direction, thereby make things convenient for gasbag 1 to put into and the product drawing of patterns, in addition, lower vertical slider 45 is equipped with the gas pocket that the air cock 1a of the gasbag 1 of being convenient for stretches out, after 1 outside cladding carbon fiber cloth of gasbag primary forming go out the guitar shape then put into neck shaping groove 32, barrel shaping groove 33, the air cock 1a of gasbag 1 stretches out from the gas pocket of lower vertical slider 45, inflate towards 1 inside of gasbag and make gasbag 1 rise the carbon fiber cloth and fill the mould clearance completely, also can deflate from here during the gassing and make the gasbag reduce and take out the gasbag from here.

As shown in fig. 8 and 9, the upper headstock molding block 5 is installed below the male mold plate 2, the lower headstock molding block 6 is installed above the female mold plate 3, the headstock molding groove 31 is formed by covering the upper headstock molding block 5 and the lower headstock molding block 6, the knob hole convex column 7 is installed in the headstock molding groove 21, and the knob hole convex column 7 is inserted into the headstock to mold the headstock knob hole when the headstock molding groove 21 is molded. As shown in fig. 10, the knob hole boss 7 is installed with the first embodiment: the upper end of the knob hole convex column 7 is fixedly arranged on the headstock to form the block 5, the lower forming block 6 of the headstock is provided with a position avoiding hole 8 corresponding to the position of the knob hole convex column 7, the lower end of the knob hole convex column 7 is inserted into the position avoiding hole 8 when the upper forming block 5 of the headstock and the lower forming block 6 of the headstock are covered, the knob hole convex column 7 is positioned in the headstock forming groove 31 at the moment, and the knob hole can be formed during the formation of the headstock. As shown in fig. 11, the knob hole boss 7 is installed in the second embodiment: the lower end of the knob hole convex column 7 is fixedly installed on the lower head forming block 5, the upper head forming block 6 is provided with a position avoiding hole 8 corresponding to the position of the knob hole convex column, the upper end of the knob hole convex column 5 is inserted into the position avoiding hole 8 when the upper head forming block 5 and the lower head forming block 6 are covered, the knob hole convex column 7 is located in the knob hole forming groove 31 at the moment, and the knob hole can be formed during the forming of the head.

Specifically, in the second step, the air bag is inflated for five times, the first time is inflated at an air pressure of 0.4-0.5 kg/c square meter for 5-6 seconds, the second time is inflated at an air pressure of 3-4 kg/c square meter for 300-305 seconds, the third time is inflated at an air pressure of 8-9 kg/c square meter for 600-605 seconds, the fourth time is inflated at an air pressure of 12-13 kg/c square meter for 1200-1205 seconds, the fifth time is inflated at an air pressure of 0.1-0.2 kg/c square meter for 5-6 seconds, and the multiple sections of pulse type air inflation are beneficial to product molding.

An integrally formed guitar is manufactured by the integrally formed guitar production process.

The above description is for the purpose of describing the invention in more detail with reference to specific preferred embodiments, and it should not be construed that the embodiments of the invention are limited to those described herein, and it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention.