Carbon fiber composite material for guitar production and preparation method thereof

Abstract

The invention discloses a carbon fiber composite material for guitar production and a preparation method thereof. The carbon fiber composite material comprises the following components in parts by weight: 27-33 parts of polyvinyl chloride, 33-37 parts of bisphenol-A polycarbonate, 33-37 parts of polyethylene, 21-27 parts of carbon fibers, 11-13 parts of chlorinated polyvinyl chloride, 5-9 parts of paraffin, 7-9 parts of chlorinated polyethylene, 7-10 parts of n-butyl stearate, 11-13 parts of acrylic acid, 9-11 parts of polypropylene fibers, 3-6 parts of titanium dioxide, 7-9 parts of zinc stearate and 5-7 parts of silicon dioxide. According to the invention, the carbon fiber composite material is used as a raw material, and the electric guitar body produced from the material can also be used as a traditional guitar and has excellent treble and bass performances.

Description

Technical Field

[0001] The present invention relates to a carbon fiber composite material for producing guitars and a preparation method thereof, belonging to the technical field of preparation methods of new musical instrument materials. Background Art

[0003] Electric guitars are usually used in rock music, blues and pop music. Traditional electric guitars are made of plastic materials, but plastic electric guitars cannot be used as conventional guitars because the plastic guitars perform poorly in the high - pitch part and the tone in the low - pitch part is overly dull. Summary of the Invention

[0004] The purpose of the present invention is to provide a carbon fiber composite material for producing guitars and a preparation method thereof. Using the carbon fiber composite material as the raw material, the electric guitar body produced from this material can also be used as a traditional guitar, and both the high - pitch and low - pitch performances are excellent.

[0005] To solve the above - mentioned technical problems, the present invention adopts the following technical solutions:

[0006] A carbon fiber composite material for producing guitars, comprising the following components in parts by weight: polyvinyl chloride 27 - 33, bisphenol - A polycarbonate 33 - 37, polyethylene 33 - 37, carbon fiber 21 - 27, chlorinated polyvinyl chloride 11 - 13, paraffin 5 - 9, chlorinated polyethylene 7 - 9, n - butyl stearate 7 - 10, acrylic acid 11 - 13, polypropylene fiber 9 - 11, titanium dioxide 3 - 6, zinc stearate 7 - 9, silicon dioxide 5 - 7.

[0007] In the aforementioned carbon fiber composite material for producing guitars, polyvinyl chloride 27, bisphenol - A polycarbonate 33, polyethylene 33, carbon fiber 21, chlorinated polyvinyl chloride 11, paraffin 5, chlorinated polyethylene 7, n - butyl stearate 7, acrylic acid 11, polypropylene fiber 9, titanium dioxide 3, zinc stearate 7, silicon dioxide 5.

[0008] In the aforementioned carbon fiber composite material for producing guitars, polyvinyl chloride 33, bisphenol - A polycarbonate 37, polyethylene 37, carbon fiber 27, chlorinated polyvinyl chloride 13, paraffin 9, chlorinated polyethylene 9, n - butyl stearate 10, acrylic acid 13, polypropylene fiber 11, titanium dioxide 6, zinc stearate 9, silicon dioxide 7.

[0009] In the aforementioned carbon fiber composite material for producing guitars, polyvinyl chloride 31, bisphenol - A polycarbonate 35, polyethylene 35, carbon fiber 24, chlorinated polyvinyl chloride 12, paraffin 7, chlorinated polyethylene 8, n - butyl stearate 8, acrylic acid 12, polypropylene fiber 10, titanium dioxide 5, zinc stearate 8, silicon dioxide 6.

[0010] The above-mentioned preparation method of a carbon fiber composite material for producing guitars is produced by a twin-screw extruder, the twin-screw extruder includes a fixed seat, a speed regulating motor and a control system are arranged on the fixed seat, and the control system is electrically connected to the speed regulating motor; it also includes a reduction box, a feeding barrel, a first feeding hopper and a feeding barrel, the reduction box and the speed regulating motor are transmission-connected, the output shaft of the reduction box is connected to a screw group, the screw group is located in the feeding barrel and the feeding barrel, and the feeding barrel and the feeding barrel are connected; the first feeding hopper is located above the feeding barrel, and the first feeding hopper is connected to the feeding barrel; the feeding barrel is composed of a first heating section, a second heating section, a third heating section, a fourth heating section, a fifth heating section, a sixth heating section, a seventh heating section, an eighth heating section, a ninth heating section and a tenth heating section which are connected in sequence, the first heating section is connected to the feeding barrel, each heating section has an independent heating device, the heating devices are electrically connected to the control system, and the second heating section is connected to a second feeding hopper;

[0011] The preparation method comprises the following steps: 27-33 parts of polyvinyl chloride, 33-37 parts of bisphenol-A polycarbonate, 33-37 parts of polyethylene, 21-27 parts of carbon fiber, 11-13 parts of chlorinated polyvinyl chloride, 5-9 parts of paraffin wax, and 7-9 parts of chlorinated polyethylene are added into a first feeding hopper according to the above weight parts;

[0012] Put 7-10 parts by weight of n-butyl stearate, 11-13 parts by weight of acrylic acid, 9-11 parts by weight of polypropylene fiber, 3-6 parts by weight of titanium dioxide, 7-9 parts by weight of zinc stearate, and 5-7 parts by weight of silicon dioxide into a second feeding hopper;

[0013] Control the first heating section to not heat, control the heating temperature of the second heating section to 213±5℃, control the heating temperature of the third heating section to 213±5℃, the heating temperature of the fourth heating section to 213±5℃, the heating temperature of the fifth heating section to 218±5℃, the heating temperature of the sixth heating section to 218±5℃, the heating temperature of the seventh heating section to 218±5℃, the heating temperature of the eighth heating section to 218±5℃, the heating temperature of the ninth heating section to 218±5℃, and the heating temperature of the tenth heating section to 213±5℃.

[0014] In the aforementioned method for preparing a carbon fiber composite material for producing guitars, the second feeding hopper includes a conical hopper, a first drive motor, a first feeding pipe, a vertical feeding pipe, a second drive motor and a second feeding pipe. The first feeding pipe is connected to the bottom of the conical hopper, and the first feeding pipe has a first feeding screw, which is connected to the output shaft of the first drive motor; the upper end of the vertical feeding pipe is connected to the first feeding pipe, and the lower end of the vertical feeding pipe is connected to the second feeding pipe. The second feeding pipe has a second feeding screw, which is connected to the output shaft of the second drive motor, and the second feeding pipe is connected to the second heating section.

[0015] In the foregoing preparation method of a carbon fiber composite material for producing a guitar, the top of the conical hopper is provided with a third driving motor, and the output shaft of the third driving motor is connected with a stirring blade, and the stirring blade is located inside the conical hopper.

[0016] Compared with the prior art, the present invention uses a carbon fiber composite material as the raw material. The electric guitar body produced from this material can also be used as a traditional guitar, and it performs excellently in both high and low pitches. Brief Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of an embodiment of the present invention;

[0018] Figure 2 is a schematic structural diagram of the second feeding hopper.

[0019] Reference Numerals: 1 - speed control motor, 2 - reduction box, 3 - feeding cylinder, 4 - first feeding hopper, 5 - control system, 6 - first heating section, 7 - second feeding hopper, 8 - second heating section, 9 - third heating section, 10 - fourth heating section, 11 - fifth heating section, 12 - sixth heating section, 13 - seventh heating section, 14 - eighth heating section, 15 - ninth heating section, 16 - tenth heating section, 17 - second feeding pipe, 18 - first driving motor, 19 - conical hopper, 20 - third driving motor, 21 - first feeding pipe, 22 - second driving motor, 23 - vertical feeding pipe.

[0020] The present invention will be further described below in conjunction with the drawings and specific embodiments. Specific Embodiments

[0021] Example 1 of the composite material: A carbon fiber composite material for producing a guitar, comprising the following components in parts by weight: polyvinyl chloride 27, bisphenol-A polycarbonate 33, polyethylene 33, carbon fiber 21, chlorinated polyvinyl chloride 11, paraffin 5, chlorinated polyethylene 7, n-butyl stearate 7, acrylic acid 11, polypropylene fiber 9, titanium dioxide 3, zinc stearate 7, silicon dioxide 5.

[0022] Example 2 of the composite material: A carbon fiber composite material for producing a guitar, comprising the following components in parts by weight: polyvinyl chloride 33, bisphenol-A polycarbonate 37, polyethylene 37, carbon fiber 27, chlorinated polyvinyl chloride 13, paraffin 9, chlorinated polyethylene 9, n-butyl stearate 10, acrylic acid 13, polypropylene fiber 11, titanium dioxide 6, zinc stearate 9, silicon dioxide 7.

[0023] Example 3 of composite material: A carbon fiber composite material for producing guitars, comprising the following components in parts by weight: 31 parts of polyvinyl chloride, 35 parts of bisphenol-A polycarbonate, 35 parts of polyethylene, 24 parts of carbon fiber, 12 parts of chlorinated polyvinyl chloride, 7 parts of paraffin, 8 parts of chlorinated polyethylene, 8 parts of n-butyl stearate, 12 parts of acrylic acid, 10 parts of polypropylene fiber, 5 parts of titanium dioxide, 8 parts of zinc stearate, and 6 parts of silicon dioxide.

[0024] Embodiment 1 of the preparation method: A preparation method of a carbon fiber composite material for producing guitars, which is produced by a twin-screw extruder, wherein the twin-screw extruder includes a fixed seat, on which a speed regulating motor 1 and a control system 5 are provided, and the control system 5 is electrically connected to the speed regulating motor 1; further comprising a reduction gearbox 2, a feeding barrel 3, a first feeding hopper 4 and a feeding barrel, wherein the reduction gearbox 2 is transmission-connected to the speed regulating motor 1, and the output shaft of the reduction gearbox 2 is connected to a screw group, which is located in the feeding barrel 3 and the feeding barrel, and the feeding barrel and the feeding barrel 3 are connected; the first feeding hopper 4 is located in the feeding barrel 3 and the feeding barrel, and the feeding barrel 3 is ... Above the feeding barrel 3, the first feeding hopper 4 is connected to the feeding barrel 3; the feeding barrel is composed of a first heating section 6, a second heating section 8, a third heating section 9, a fourth heating section 10, a fifth heating section 11, a sixth heating section 12, a seventh heating section 13, an eighth heating section 14, a ninth heating section 15 and a tenth heating section 16 which are connected in sequence, the first heating section 6 is connected to the feeding barrel 3, each heating section has an independent heating device, and the heating devices are electrically connected to the control system 5, and the second heating section 8 is connected to the second feeding hopper 7;

[0025] The preparation method comprises the following steps: adding 27 parts of polyvinyl chloride, 33 parts of bisphenol-A polycarbonate, 33 parts of polyethylene, 21 parts of carbon fiber, 11 parts of chlorinated polyvinyl chloride, 5 parts of paraffin wax, and 7 parts of chlorinated polyethylene into a first feeding hopper 4 according to the above weight parts; adding 7 parts of n-butyl stearate, 11 parts of acrylic acid, 9 parts of polypropylene fiber, 3 parts of titanium dioxide, 7 parts of zinc stearate, and 5 parts of silicon dioxide into a second feeding hopper 7 according to the above weight parts;

[0026] The first heating section 6 is controlled not to heat, the heating temperature of the second heating section 8 is controlled to be 213°C, the heating temperature of the third heating section 9 is controlled to be 213°C, the heating temperature of the fourth heating section 10 is controlled to be 213°C, the heating temperature of the fifth heating section 11 is controlled to be 218°C, the heating temperature of the sixth heating section 12 is controlled to be 218°C, the heating temperature of the seventh heating section 13 is controlled to be 218°C, the heating temperature of the eighth heating section 14 is controlled to be 218°C, the heating temperature of the ninth heating section 15 is controlled to be 218°C, and the heating temperature of the tenth heating section 16 is controlled to be 213°C.

[0027] The second feeding hopper 7 includes a conical hopper 19, a first drive motor 18, a first feeding pipe 21, a vertical feeding pipe 23, a second drive motor 22 and a second feeding pipe 17. The first feeding pipe 21 is connected to the bottom of the conical hopper 19, and a first feeding screw is provided in the first feeding pipe 21, and the first feeding screw is connected to the output shaft of the first drive motor 18; the upper end of the vertical feeding pipe 23 is connected to the first feeding pipe 21, and the lower end of the vertical feeding pipe 23 is connected to the second feeding pipe 17, and a second feeding screw is provided in the second feeding pipe 17, and the second feeding screw is connected to the output shaft of the second drive motor 22, and the second feeding pipe 17 is connected to the second heating section 8. The top of the conical hopper 19 is provided with a third drive motor 20, and the output shaft of the third drive motor 20 is connected with a stirring blade, and the stirring blade is located in the conical hopper 19.

[0028] Embodiment 2 of the preparation method: A preparation method of a carbon fiber composite material for producing guitars, which is produced by a twin-screw extruder, wherein the twin-screw extruder includes a fixed seat, on which a speed regulating motor 1 and a control system 5 are provided, and the control system 5 is electrically connected to the speed regulating motor 1; further comprising a reduction gearbox 2, a feeding barrel 3, a first feeding hopper 4 and a feeding barrel, wherein the reduction gearbox 2 is transmission-connected to the speed regulating motor 1, and the output shaft of the reduction gearbox 2 is connected to a screw group, which is located in the feeding barrel 3 and the feeding barrel, and the feeding barrel and the feeding barrel 3 are connected; the first feeding hopper 4 is located in the feeding barrel 3 and the feeding barrel, and the feeding barrel 3 is ... Above the feeding barrel 3, the first feeding hopper 4 is connected to the feeding barrel 3; the feeding barrel is composed of a first heating section 6, a second heating section 8, a third heating section 9, a fourth heating section 10, a fifth heating section 11, a sixth heating section 12, a seventh heating section 13, an eighth heating section 14, a ninth heating section 15 and a tenth heating section 16 which are connected in sequence, the first heating section 6 is connected to the feeding barrel 3, each heating section has an independent heating device, and the heating devices are electrically connected to the control system 5, and the second heating section 8 is connected to the second feeding hopper 7;

[0029] The preparation method comprises the following steps: adding 33 parts of polyvinyl chloride, 37 parts of bisphenol-A polycarbonate, 37 parts of polyethylene, 27 parts of carbon fiber, 13 parts of chlorinated polyvinyl chloride, 9 parts of paraffin wax, and 9 parts of chlorinated polyethylene into a first feeding hopper 4 according to the above weight parts; adding 10 parts of n-butyl stearate, 13 parts of acrylic acid, 11 parts of polypropylene fiber, 6 parts of titanium dioxide, 9 parts of zinc stearate, and 7 parts of silicon dioxide into a second feeding hopper 7 according to the above weight parts;

[0030] The first heating section 6 is controlled not to heat, the heating temperature of the second heating section 8 is controlled to be 218°C, the heating temperature of the third heating section 9 is controlled to be 218°C, the heating temperature of the fourth heating section 10 is controlled to be 218°C, the heating temperature of the fifth heating section 11 is controlled to be 223°C, the heating temperature of the sixth heating section 12 is controlled to be 223°C, the heating temperature of the seventh heating section 13 is controlled to be 223°C, the heating temperature of the eighth heating section 14 is controlled to be 223°C, the heating temperature of the ninth heating section 15 is controlled to be 223°C, and the heating temperature of the tenth heating section 16 is controlled to be 218°C.

[0031] The second feeding hopper 7 includes a conical hopper 19, a first drive motor 18, a first feeding pipe 21, a vertical feeding pipe 23, a second drive motor 22 and a second feeding pipe 17. The first feeding pipe 21 is connected to the bottom of the conical hopper 19, and a first feeding screw is provided in the first feeding pipe 21, and the first feeding screw is connected to the output shaft of the first drive motor 18; the upper end of the vertical feeding pipe 23 is connected to the first feeding pipe 21, and the lower end of the vertical feeding pipe 23 is connected to the second feeding pipe 17, and a second feeding screw is provided in the second feeding pipe 17, and the second feeding screw is connected to the output shaft of the second drive motor 22, and the second feeding pipe 17 is connected to the second heating section 8. The top of the conical hopper 19 is provided with a third drive motor 20, and the output shaft of the third drive motor 20 is connected with a stirring blade, and the stirring blade is located in the conical hopper 19.

[0032] Embodiment 3 of the preparation method: A preparation method of a carbon fiber composite material for producing guitars, which is produced by a twin-screw extruder, wherein the twin-screw extruder includes a fixed seat, on which a speed regulating motor 1 and a control system 5 are provided, and the control system 5 is electrically connected to the speed regulating motor 1; further comprising a reduction gearbox 2, a feeding barrel 3, a first feeding hopper 4 and a feeding barrel, wherein the reduction gearbox 2 is transmission-connected to the speed regulating motor 1, and the output shaft of the reduction gearbox 2 is connected to a screw group, which is located in the feeding barrel 3 and the feeding barrel, and the feeding barrel and the feeding barrel 3 are connected; the first feeding hopper 4 is located in the feeding barrel 3 and the feeding barrel, and the feeding barrel 3 is ... Above the feeding barrel 3, the first feeding hopper 4 is connected to the feeding barrel 3; the feeding barrel is composed of a first heating section 6, a second heating section 8, a third heating section 9, a fourth heating section 10, a fifth heating section 11, a sixth heating section 12, a seventh heating section 13, an eighth heating section 14, a ninth heating section 15 and a tenth heating section 16 which are connected in sequence, the first heating section 6 is connected to the feeding barrel 3, each heating section has an independent heating device, and the heating devices are electrically connected to the control system 5, and the second heating section 8 is connected to the second feeding hopper 7;

[0033] The preparation method includes the following steps: Put 31 parts by weight of polyvinyl chloride, 35 parts by weight of bisphenol-A polycarbonate, 35 parts by weight of polyethylene, 24 parts by weight of carbon fiber, 12 parts by weight of chlorinated polyvinyl chloride, 7 parts by weight of paraffin, and 8 parts by weight of chlorinated polyethylene into the first feeding hopper 4; Put 8 parts by weight of n-butyl stearate, 12 parts by weight of acrylic acid, 10 parts by weight of polypropylene fiber, 5 parts by weight of titanium dioxide, 8 parts by weight of zinc stearate, and 6 parts by weight of silicon dioxide into the second feeding hopper 7.

[0034] Control the first heating section 6 not to heat, control the heating temperature of the second heating section 8 to be 208°C, control the heating temperature of the third heating section 9 to be 208°C, the heating temperature of the fourth heating section 10 to be 208°C, the heating temperature of the fifth heating section 11 to be 213°C, the heating temperature of the sixth heating section 12 to be 213°C, the heating temperature of the seventh heating section 13 to be 213°C, the heating temperature of the eighth heating section 14 to be 213°C, the heating temperature of the ninth heating section 15 to be 213°C, and the heating temperature of the tenth heating section 16 to be 208°C.

[0035] The second feeding hopper 7 includes a conical hopper 19, a first driving motor 18, a first feeding pipe 21, a vertical feeding pipe 23, a second driving motor 22, and a second feeding pipe 17. The first feeding pipe 21 is communicated with the bottom of the conical hopper 19. The first feeding pipe 21 is provided with a first feeding lead screw, and the first feeding lead screw is connected to the output shaft of the first driving motor 18; The upper end of the vertical feeding pipe 23 is communicated with the first feeding pipe 21, the lower end of the vertical feeding pipe 23 is communicated with the second feeding pipe 17, the second feeding pipe 17 is provided with a second feeding lead screw, and the second feeding lead screw is connected to the output shaft of the second driving motor 22. The second feeding pipe 17 is communicated with the second heating section 8. The top of the conical hopper 19 is provided with a third driving motor 20, and the output shaft of the third driving motor 20 is connected with a stirring blade, and the stirring blade is located in the conical hopper 19.

[0036] In the present invention, the current of the speed-regulating motor is set to 120A, and a 65B type twin-screw extruder unit is adopted. The length-diameter ratio is 40:1. For the water-cooled strand pelletizing process, the cooling water temperature is controlled at 50 - 60°C, and the cooling length is the full length of the water tank for cooling. After pelletizing, the product is stored in the silo for 2h and cooled naturally; It is directly injection-molded into a sample plate and a standard sample bar by an injection molding machine, and after being treated in a standard environment of 23 ± 2°C and a humidity of 50% for 48h, it is then tested. After the product is cooled naturally for 4h, the moisture content is tested with a 1‰g moisture tester.

[0037] The physical property test results are as follows in the table:

[0038]

[0039]

[0040] This experiment is the result of random sampling of 3,010 tons of PPT production. The original process is the sampling test result of each batch of products originally.

[0041] Moisture test results:

[0042] Number of tests The first time The second time The third time Test result 0.32‰ 0.31‰ 0.33‰

Claims

1. A carbon fiber composite material for producing guitars, characterized in that, Comprising the following components in parts by weight: Polyvinyl chloride 27 - 33, bisphenol-A polycarbonate 33 - 37, polyethylene 33 - 37, carbon fiber 21 - 27, chlorinated polyvinyl chloride 11 - 13, paraffin wax 5 - 9, chlorinated polyethylene 7 - 9, n-butyl stearate 7 - 10, acrylic acid 11 - 13, polypropylene fiber 9 - 11, titanium dioxide 3 - 6, zinc stearate 7 - 9, silicon dioxide 5 - 7.

2. The carbon fiber composite material for producing a guitar according to claim 1, wherein Polyvinyl chloride 27, bisphenol-A polycarbonate 33, polyethylene 33, carbon fiber 21, chlorinated polyvinyl chloride 11, paraffin wax 5, chlorinated polyethylene 7, n-butyl stearate 7, acrylic acid 11, polypropylene fiber 9, titanium dioxide 3, zinc stearate 7, silicon dioxide 5.

3. The carbon fiber composite material for producing a guitar according to claim 1, characterized in that, Polyvinyl chloride 33, bisphenol-A polycarbonate 37, polyethylene 37, carbon fiber 27, chlorinated polyvinyl chloride 13, paraffin wax 9, chlorinated polyethylene 9, n-butyl stearate 10, acrylic acid 13, polypropylene fiber 11, titanium dioxide 6, zinc stearate 9, silicon dioxide 7.

4. A carbon fiber composite material for producing a guitar according to claim 1, characterized in that, Polyvinyl chloride 31, bisphenol-A polycarbonate 35, polyethylene 35, carbon fiber 24, chlorinated polyvinyl chloride 12, paraffin wax 7, chlorinated polyethylene 8, n-butyl stearate 8, acrylic acid 12, polypropylene fiber 10, titanium dioxide 5, zinc stearate 8, silicon dioxide 6.

5. The preparation method of a carbon fiber composite material for producing a guitar according to any one of claims 1 to 4, characterized in that, Produced by a twin-screw extruder, the twin-screw extruder includes a fixed seat, on which a speed-regulating motor (1) and a control system (5) are provided, and the control system (5) is electrically connected to the speed-regulating motor (1); it also includes a reduction gearbox (2), a feeding cylinder (3), a first feeding hopper (4) and a feeding barrel. The reduction gearbox (2) is drivingly connected to the speed-regulating motor (1), and an output shaft of the reduction gearbox (2) is connected to a screw group, the screw group is located in the feeding cylinder (3) and the feeding barrel, and the feeding barrel is communicated with the feeding cylinder (3); the first feeding hopper (4) is located above the feeding cylinder (3), and the first feeding hopper (4) is communicated with the feeding cylinder (3); the feeding barrel is composed of a first heating section (6), a second heating section (8), a third heating section (9), a fourth heating section (10), a fifth heating section (11), a sixth heating section (12), a seventh heating section (13), an eighth heating section (14), a ninth heating section (15) and a tenth heating section (16) that are sequentially communicated. The first heating section (6) is communicated with the feeding cylinder (3), and each heating section has an independent heating device, and the heating devices are all electrically connected to the control system (5), and the second heating section (8) is communicated with a second feeding hopper (7); The preparation method includes the following: putting polyvinyl chloride 27 - 33, bisphenol-A polycarbonate 33 - 37, polyethylene 33 - 37, carbon fiber 21 - 27, chlorinated polyvinyl chloride 11 - 13, paraffin wax 5 - 9, chlorinated polyethylene 7 - 9 into the first feeding hopper (4) according to the above parts by weight; Putting n-butyl stearate 7 - 10, acrylic acid 11 - 13, polypropylene fiber 9 - 11, titanium dioxide 3 - 6, zinc stearate 7 - 9, silicon dioxide 5 - 7 into the second feeding hopper (7) according to the above parts by weight; Control whether the first heating section (6) is heated or not, control the heating temperature of the second heating section (8) to be 213 ± 5 °C, control the heating temperature of the third heating section (9) to be 213 ± 5 °C, the heating temperature of the fourth heating section (10) to be 213 ± 5 °C, the heating temperature of the fifth heating section (11) to be 218 ± 5 °C, the heating temperature of the sixth heating section (12) to be 218 ± 5 °C, the heating temperature of the seventh heating section (13) to be 218 ± 5 °C, the heating temperature of the eighth heating section (14) to be 218 ± 5 °C, the heating temperature of the ninth heating section (15) to be 218 ± 5 °C, and the heating temperature of the tenth heating section (16) to be 213 ± 5 °C.

6. The preparation method of a carbon fiber composite material for producing a guitar according to claim 5, characterized in that, The second feeding hopper (7) includes a conical hopper (19), a first driving motor (18), a first feeding pipe (21), a vertical feeding pipe (23), a second driving motor (22) and a second feeding pipe (17). The first feeding pipe (21) communicates with the bottom of the conical hopper (19). A first feeding lead screw is provided in the first feeding pipe (21), and the first feeding lead screw is connected to the output shaft of the first driving motor (18). The upper end of the vertical feeding pipe (23) communicates with the first feeding pipe (21), the lower end of the vertical feeding pipe (23) communicates with the second feeding pipe (17). A second feeding lead screw is provided in the second feeding pipe (17), and the second feeding lead screw is connected to the output shaft of the second driving motor (22). The second feeding pipe (17) communicates with the second heating section (8).

7. A preparation method of a carbon fiber composite material for producing a guitar according to claim 6, characterized in that, The top of the conical hopper (19) is provided with a third driving motor (20), and the output shaft of the third driving motor (20) is connected with a stirring blade, and the stirring blade is located inside the conical hopper (19).

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