Infrared heating mechanical filament spreading equipment
Through the design of infrared heating mechanical wire spreading equipment, temperature detection and precision vibration technology are used to solve the problems of fiber bundle unevenness and damage, and the mechanical properties and material utilization of the prepreg are improved.
Patent Information
- Application Number
- CN202411590093.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-01-03
AI Technical Summary
In the prior art, the fiber bundle after vibrating the wire spread is not uniform enough, and the damage is large, resulting in low mechanical properties of the prepreg and waste of materials, which affects the performance of the preparation of continuous fiber-reinforced thermoplastic composites.
Design an infrared heating mechanical wire spreading equipment, including an insulating box with temperature detection function, a wire spreading roller mechanism and a driving roller mechanism, and uses an infrared heating device and an electric heating rod to achieve up and down vibration through a servo motor and a precision lead screw. Ensure uniformity of wire spread width and fiber density.
Through infrared heating and precision vibration, the wire spreading width is ensured to the maximum extent, the fiber density is more uniform, and the fiber damage is less, which improves the mechanical properties and material utilization of the prepreg.
Smart Images
Figure CN119238788A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of composite carbon fiber fiber spreading, and provides an infrared heating mechanical fiber spreading device. Background Art
[0002] Continuous fiber reinforced thermoplastic composites, such as carbon fiber, have the advantages of low density, strong toughness, corrosion resistance, fatigue resistance, etc., and are widely used in aerospace, automobile, energy, medical and other fields. As an intermediate material for preparing continuous fiber reinforced thermoplastic composites, the performance of prepreg will have a direct impact on the performance of the material, among which the degree of fiber bundle expansion is an important factor affecting the performance of the prepared prepreg.
[0003] In the actual production of prepregs, there are problems such as uneven fiber bundles and severe damage after vibration spreading, resulting in low mechanical properties of the finished prepreg and material waste. The use of heated spreading rollers and temperature-controllable spreading equipment can effectively improve the spreading effect. Summary of the invention
[0004] The purpose of the present invention is to provide a carbon fiber vibration fiber spreading test device to solve the problems raised by the above background technology.
[0005] In order to achieve the above object, the present invention adopts the following technical solution:
[0006] An infrared heating mechanical wire spreading equipment comprises: a frame and a tooling base plate fixed on the frame, the outermost layer of which is a heat preservation box with a temperature detection function; a wire spreading fixed roller mechanism, which is fixed to the tooling base plate through a fixed roller bracket, and the wire spreading fixed roller mechanism comprises seven groups of wire spreading rollers; three groups of wire spreading movable roller mechanisms, which are installed on the tooling base plate at equal intervals, and each group of the wire spreading movable roller mechanisms is fixed to the tooling base plate through a lifting motor fixing plate, and the movable roller bracket of the wire spreading movable roller mechanism is installed with two groups of wire spreading rollers, which can be lifted and vibrated up and down by connecting a servo motor and a precision lead screw; the wire spreading roller is provided with a heating device and a temperature detection device inside; and four infrared heating devices.
[0007] Furthermore, the insulated box is fixed on the tooling bottom plate, a temperature sensor is arranged inside the insulated box, the inner wall panel of the insulated box is made of aerogel material, and a side sliding door is provided.
[0008] Furthermore, the wire spreading fixed roller mechanism includes two fixed roller brackets, the two fixed roller brackets are fixed in parallel to the tooling bottom plate, limit plates are fixed on both sides of the two fixed roller brackets, a heating rod bracket of an infrared heating device is tightly fixed above the limit plates, the fixed roller bearing end covers are fixed on the fixed roller brackets at an average interval, and seven wire spreading rollers with fixed roller bearings installed at both ends are installed between the fixed roller brackets through the fixed roller bearing end covers at both ends.
[0009] Furthermore, the wire spreading roller mechanism includes a fixed device and a moving device, the moving device is connected to the fixed device through a precision screw to vibrate up and down, the upper end of the precision screw is connected to the moving device, and the lower end is moved up and down in the servo motor of the fixed device. The moving device is moved and positioned by four guide pillars of the moving roller frame fixed to the moving device and four fixed sleeves fixed to the fixed device.
[0010] Furthermore, the fixing device includes a lifting motor fixing plate, the lifting motor fixing plate determines the distance from the tooling base plate through a positioning sleeve, the servo motor is installed under the lifting motor fixing plate, the lower end of the precision screw moves up and down in the servo motor, and the four fixing sleeves are fixed on the lifting motor fixing plate at the four corners of the servo motor.
[0011] Furthermore, the moving device includes four movable roller bracket guide columns fixed on the movable roller bracket, two movable roller bearing end covers fixed on the movable roller bracket, and two wire spreading rollers with movable roller bearings installed at both ends are installed between the movable roller brackets through the movable roller bearing end covers at both ends.
[0012] Furthermore, the three groups of wire spreading roller mechanisms are installed on the tooling bottom plate at equal intervals, and the three groups of moving devices can be controlled individually.
[0013] Furthermore, the wire spreading roller is provided with a heating rod heating device and a thermocouple temperature detection device inside.
[0014] Furthermore, the infrared heating device includes infrared heating rods, the upper four infrared heating rods are fixed to the upper plate inside the insulation box by heating rod brackets, and the lower four infrared heating rods are fixed between fixed roller brackets by heating rod brackets, below the wire spreading rollers of the seven sets of wire spreading fixed roller mechanisms.
[0015] Furthermore, a method for using an infrared heating mechanical wire spreading device comprises the following steps:
[0016] A. The unstretched carbon fiber tow raw material is sequentially laid through the lower end of the spreading roller of the spreading fixed roller mechanism, the upper end of the spreading roller of the spreading movable roller mechanism, the lower end of the spreading roller of the spreading fixed roller mechanism, etc., alternately until the fibers are collected from the other end.
[0017] B. Close the side sliding door of the insulation box, ensure that the upper and lower heating rods inside the insulation box are normally turned on and can detect and adjust the temperature in real time, and ensure that the wire spreading rollers of the seven sets of wire spreading fixed roller mechanisms and the wire spreading rollers of the six sets of wire spreading moving roller mechanisms can be heated and can detect and adjust the temperature in real time.
[0018] C. During the vibration wire spreading process, the servo motor of the wire spreading fixed roller mechanism drives the precision lead screw to move back and forth up and down. To ensure a larger wire spreading width, more uniform fiber density after spreading, and less fiber damage, the up and down vibration amplitudes of the wire spreading moving roller mechanism through which the wire bundle passes are small amplitude, medium amplitude, and large amplitude, respectively.
[0019] Compared with the existing technology, the beneficial effects of the present invention are:
[0020] A total of eight groups of infrared heating devices are arranged in the mechanical fiber spreading equipment. The upper four groups of infrared heating devices are mainly used to soften the sizing agent of the continuous carbon fiber bundle raw material to facilitate the subsequent fiber spreading; the lower four groups of infrared heating devices are mainly used to compensate and adjust the temperature in the box. The box is equipped with a precision temperature sensor to feedback the temperature in the box in real time; the fiber spreading roller has a built-in electric heating rod to heat the continuous fiber bundle. The electric heating rod is connected to a thermocouple, which can sense the surface temperature of the fiber spreading roller in real time and adjust it manually; the up and down vibration amplitudes of the fiber spreading moving roller mechanism through which the bundle passes are small, medium and large respectively, which can ensure that the fiber spreading width is larger, the fiber density is more uniform after spreading, and the fiber damage is smaller. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0022] Figure 1 It is a schematic diagram of the structure inside the incubator;
[0023] Figure 2 It is a schematic diagram of the organization;
[0024] Figure 3 It is a schematic diagram of the wire spreading fixed roller mechanism;
[0025] Figure 4 It is a schematic diagram of the wire spreading roller mechanism;
[0026] Figure 5 for Figure 2 Top view of the .
[0027] Among them, 1. Frame; 2. Tooling bottom plate; 3. Insulation box; 4. Infrared heating rod; 5. Heating rod bracket; 6. Fixed roller bracket; 7. Fixed roller bearing; 8. Fixed roller bearing end cover; 9. Limit plate; 10. Lifting motor fixing plate; 11. Moving roller bracket; 12. Moving roller bracket guide column; 13 Fixed sleeve; 14. Positioning sleeve; 15. Servo motor; 16. Precision screw; 17. Moving roller bearing; 18. Moving roller bearing end cover; 20. Wire spreading roller. DETAILED DESCRIPTION
[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.
[0029] Embodiment 1:
[0030] Reference Figure 1-Figure 5 The present invention provides an infrared heating mechanical wire spreading device, comprising: a frame 1 and a tooling base plate 2 fixed on the frame 1, the outermost layer of which is a heat preservation box 3 with a temperature detection function; a wire spreading fixed roller mechanism, the wire spreading fixed roller mechanism is fixed on the tooling base plate 2 through a fixed roller bracket 6, and the wire spreading fixed roller mechanism includes seven groups of wire spreading rollers 20; three groups of wire spreading movable roller mechanisms, the wire spreading movable roller mechanisms are installed on the tooling base plate 2 at equal intervals, and each group of the wire spreading movable roller mechanisms is fixed to the tooling base plate 2 through a lifting motor fixing plate 10, and the movable roller bracket 11 of the wire spreading movable roller mechanism is installed with two groups of wire spreading rollers 20, which can be lifted and vibrated up and down by connecting a servo motor 15 and a precision lead screw 16; the wire spreading roller 20 has a heating device and a temperature detection device inside; four infrared heating devices.
[0031] In this embodiment, the heat preservation box 3 is fixed on the tooling bottom plate 2, a temperature sensor is arranged inside the heat preservation box 3, the inner wall panel of the heat preservation box 3 is made of aerogel material, and a side sliding door is provided.
[0032] In order to prevent people from getting scalded during the production process, the equipment's outer box uses heat-insulating food materials, and the inner layer uses aerogel material, which can isolate 90% of the heat. When the internal temperature is 160°C, the contact temperature of the outer layer of the insulation box is about 40°C.
[0033] In this embodiment, the wire spreading fixed roller mechanism includes two fixed roller brackets 6, and the two fixed roller brackets 6 are fixed in parallel to the tooling base plate 2. Limiting plates 7 are fixed on both sides of the two fixed roller brackets 6. A heating rod bracket 5 of an infrared heating device is tightly fixed above the limiting plates 7. Fixed roller bearing end covers 8 are fixed on the fixed roller brackets 6 at even intervals. Seven wire spreading rollers 20 with fixed roller bearings 7 installed at both ends are installed between the fixed roller brackets 6 through the fixed roller bearing end covers 8 at both ends.
[0034] The bearing is a deep groove ball bearing, which reduces the rolling resistance of the wire spreading roller, reduces the relative sliding between the wire bundle and the wire spreading roller during the mechanical wire spreading process, and reduces the damage during the wire spreading process.
[0035] In this embodiment, the wire spreading roller mechanism includes a fixed device and a moving device, the moving device is connected to the fixed device through a precision screw 16 to vibrate up and down, the upper end of the precision screw 16 is connected to the moving device, and the lower end is moved up and down in the servo motor 15 of the fixed device. The moving device is moved and positioned by four moving roller frame guide pillars 12 fixed to the moving device and four fixed sleeves 13 fixed to the fixed device.
[0036] In this embodiment, the fixing device includes a lifting motor fixing plate 10, and the lifting motor fixing plate 10 determines the distance from the tooling base plate 2 through a positioning sleeve 13. The servo motor 15 is installed under the lifting motor fixing plate 10. The lower end of the precision screw 16 moves up and down in the servo motor. The four fixing sleeves 13 are fixed on the lifting motor fixing plate 10 at the four corners of the servo motor 15.
[0037] When installing the fixing device, the positioning sleeve 14 can realize the correct height positioning and horizontal position positioning of the jacking motor fixing plate 10.
[0038] In this embodiment, the moving device includes four moving roller bracket guide columns 12 fixed on the moving roller bracket 11, two moving roller bearing end covers 18 fixed on the moving roller bracket 11, and two wire spreading rollers 20 with moving roller bearings 17 installed at both ends are installed between the moving roller brackets 11 through the moving roller bearing end covers 18 at both ends.
[0039] When installing the moving device, first insert the four movable roller bracket guide posts 12 into the fixed sleeve 13, and add lubricating oil to ensure low resistance when it performs driven mechanical reciprocating motion up and down. The function of the movable roller bracket guide posts 12 is to ensure that the movable roller bracket 11 does not deviate or twist during movement.
[0040] The servo motor 15 fixed to the fixing device drives the precision screw 16 to move up and down. The precision screw 16 is fixedly connected to the bottom of the movable roller bracket 11, driving the movable roller bracket 11 and the wire spreading roller 20 on the movable roller bracket 11 to reciprocate up and down. The mutual movement of the movable roller and the fixed roller realizes the effective widening of the carbon fiber bundle.
[0041] In this embodiment, three groups of wire spreading roller mechanisms are installed on the tooling base plate 2 at equal intervals, and the three groups of moving devices can be controlled separately.
[0042] The three servo motors 15 can be controlled individually, and are arranged to drive the wire spreading roller of the wire spreading roller mechanism to vibrate up and down with small, medium and large amplitudes in sequence, which can ensure that the wire spreading width is larger, the fiber density is more uniform after the wire spreading, and the fiber damage is smaller.
[0043] In this embodiment, the wire spreading roller 20 is provided with a heating rod heating device and a thermocouple temperature detection device inside.
[0044] The wire spreading roller 20 can use the same specifications of fixed roller bearing 7 and fixed roller bearing end cover 6 or movable roller bearing 17 and movable roller bearing end cover 18, so the wire spreading roller 10 of different diameters can be replaced according to different carbon fiber tows and different needs. The electric heating rod installed in the wire spreading roller 20 can heat the continuous fiber tow. The electric heating rod is connected to the thermocouple, which can sense the surface temperature of the wire spreading roller 20 in real time and adjust it manually. The surface roughness of the wire spreading roller 20 is Ra0.02.
[0045] In this embodiment, the infrared heating device includes infrared heating rods 4. The upper four infrared heating rods 4 are fixed to the upper plate inside the insulation box 3 by heating rod brackets 5. The lower four infrared heating rods 4 are fixed between fixed roller brackets 6 by heating rod brackets 5, below the wire spreading rollers 20 of the seven sets of wire spreading fixed roller mechanisms.
[0046] The equipment consists of a total of eight groups of infrared heating devices, the upper four groups of infrared heating devices are mainly used to soften the sizing agent of the continuous carbon fiber tow raw materials to facilitate the subsequent yarn spreading; the lower four groups of infrared heating devices are mainly used to compensate and adjust the temperature inside the box. The box is equipped with a precision temperature sensor to provide real-time feedback on the temperature inside the box.
[0047] Embodiment 2:
[0048] An infrared heating mechanical wire spreading device, comprising:
[0049] A frame 1 and a tooling base plate 2 fixed on the frame 1, the outermost layer of which is a heat preservation box 3 with a temperature detection function; a wire spreading fixed roller mechanism, which is fixed on the tooling base plate 2 through a fixed roller bracket 6, and the wire spreading fixed roller mechanism includes seven groups of wire spreading rollers 20; three groups of wire spreading movable roller mechanisms, which are installed on the tooling base plate 2 at equal intervals, and each group of the wire spreading movable roller mechanisms is fixed to the tooling base plate 2 through a lifting motor fixing plate 10, and the movable roller bracket 11 of the wire spreading movable roller mechanism is installed with two groups of wire spreading rollers 20, which can be lifted and vibrated up and down by connecting a servo motor 15 and a precision lead screw 16; the wire spreading roller 20 has a heating device and a temperature detection device inside; and four infrared heating devices.
[0050] The heat preservation box 3 is fixed on the tooling bottom plate 2, a temperature sensor is arranged inside the heat preservation box 3, the inner wall plate of the heat preservation box 3 is made of aerogel material, and a side sliding door is arranged.
[0051] The wire spreading fixed roller mechanism includes two fixed roller brackets 6, and the two fixed roller brackets 6 are fixedly connected to the tooling base plate 2 in parallel. Limiting plates 7 are fixed on both sides of the two fixed roller brackets 6. A heating rod bracket 5 of an infrared heating device is fixed tightly above the limiting plates 7. Fixed roller bearing end covers 8 are fixed on the fixed roller brackets 6 at an even distance. Seven wire spreading rollers 20 with fixed roller bearings 7 installed at both ends are installed between the fixed roller brackets 6 through the fixed roller bearing end covers 8 at both ends.
[0052] The wire spreading roller mechanism includes a fixed device and a moving device. The moving device is connected to the fixed device through a precision lead screw 16 to vibrate up and down. The upper end of the precision lead screw 16 is connected to the moving device, and the lower end moves up and down in the servo motor 15 of the fixed device. The moving device is moved and positioned by four moving roller frame guide pillars 12 fixed to the moving device and four fixed sleeves 13 fixed to the fixed device.
[0053] The fixing device includes a lifting motor fixing plate 10, and the lifting motor fixing plate 10 determines the distance from the tooling base plate 2 through a positioning sleeve 13. The servo motor 15 is installed below the lifting motor fixing plate 10. The lower end of the precision screw 16 moves up and down in the servo motor. The four fixing sleeves 13 are fixed on the lifting motor fixing plate 10 at the four corners of the servo motor 15.
[0054] The moving device includes four moving roller bracket guide columns 12 fixed on the moving roller bracket 11, two moving roller bearing end covers 18 fixed on the moving roller bracket 11, and two wire spreading rollers 20 with moving roller bearings 17 installed at both ends are installed between the moving roller brackets 11 through the moving roller bearing end covers 18 at both ends.
[0055] The three groups of wire spreading roller mechanisms are installed on the tooling base plate 2 at equal intervals, and the three groups of moving devices can be controlled separately.
[0056] The wire spreading roller 20 is provided with a heating rod heating device and a thermocouple temperature detection device inside.
[0057] The infrared heating device includes infrared heating rods 4, the upper four infrared heating rods 4 are fixed to the upper plate inside the heat preservation box 3 by heating rod brackets 5, and the lower four infrared heating rods 4 are fixed between fixed roller brackets 6 by heating rod brackets 5, below the wire spreading rollers 20 of the seven sets of wire spreading fixed roller mechanisms.
[0058] Embodiment 3:
[0059] A method for using an infrared heating mechanical wire spreading device comprises the following steps:
[0060] A. The unstretched carbon fiber tow raw material is sequentially laid through the lower end of the spreading roller of the spreading fixed roller mechanism, the upper end of the spreading roller of the spreading movable roller mechanism, the lower end of the spreading roller of the spreading fixed roller mechanism, etc., alternately until the fibers are collected from the other end.
[0061] B. Close the side sliding door of the insulation box, ensure that the upper and lower heating rods inside the insulation box are normally turned on and can detect and adjust the temperature in real time, and ensure that the wire spreading rollers of the seven sets of wire spreading fixed roller mechanisms and the wire spreading rollers of the six sets of wire spreading moving roller mechanisms can be heated and can detect and adjust the temperature in real time.
[0062] C. During the vibration wire spreading process, the servo motor of the wire spreading fixed roller mechanism drives the precision lead screw to move back and forth up and down. To ensure a larger wire spreading width, more uniform fiber density after spreading, and less fiber damage, the up and down vibration amplitudes of the wire spreading moving roller mechanism through which the wire bundle passes are small amplitude, medium amplitude, and large amplitude, respectively.
[0063] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.
[0064] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.
Claims
1. An infrared heating mechanical wire spreading device, characterized in that: include: A machine frame (1) and a tooling base plate (2) fixed on the machine frame (1), the outermost layer of which is a heat preservation box (3) with a temperature detection function; a wire spreading fixed roller mechanism, the wire spreading fixed roller mechanism is fixed on the tooling base plate (2) through a fixed roller bracket (6), the wire spreading fixed roller mechanism includes seven groups of wire spreading rollers (20); three groups of wire spreading movable roller mechanisms, the wire spreading movable roller mechanisms are installed on the tooling base plate (2) at equal intervals, each group of the wire spreading movable roller mechanisms is fixed to the tooling base plate (2) through a lifting motor fixing plate (10), the movable roller bracket (11) of the wire spreading movable roller mechanism is installed with two groups of wire spreading rollers (20), which can be lifted and vibrated up and down by connecting a servo motor (15) and a precision lead screw (16); the wire spreading roller (20) has a heating device and a temperature detection device inside; four infrared heating devices.
2. The infrared heating mechanical wire spreading device according to claim 1, characterized in that: The heat preservation box (3) is fixed on the tooling bottom plate (2), a temperature sensor is arranged inside the heat preservation box (3), the inner wall panel of the heat preservation box (3) is made of aerogel material, and a side sliding door is provided.
3. The infrared heating mechanical wire spreading device according to claim 1, characterized in that: The wire spreading fixed roller mechanism comprises two fixed roller brackets (6), the two fixed roller brackets (6) are fixedly connected in parallel to the tooling bottom plate (2), the two side surfaces of the two fixed roller brackets (6) are fixed with limit plates (7), the heating rod bracket (5) of the infrared heating device is fixed tightly above the limit plates (7), the fixed roller bearing end covers (8) are fixed on the fixed roller brackets (6) at an even interval, and seven wire spreading rollers (20) with fixed roller bearings (7) installed at both ends are installed between the fixed roller brackets (6) through the fixed roller bearing end covers (8) at both ends.
4. The infrared heating mechanical wire spreading device according to claim 1, characterized in that: The wire spreading movable roller mechanism comprises a fixing device and a moving device, wherein the moving device is connected to the fixing device via a precision lead screw (16) to vibrate up and down, the upper end of the precision lead screw (16) is connected to the moving device, and the lower end is moved up and down in a servo motor (15) of the fixing device; the moving device is moved and positioned by four movable roller frame guide columns (12) fixed on the moving device and four fixed sleeves (13) fixed on the fixing device.
5. The infrared heating mechanical wire spreading device according to claim 4, characterized in that: The fixing device comprises a lifting motor fixing plate (10), wherein the lifting motor fixing plate (10) determines the distance from the tooling base plate (2) through a positioning sleeve (13), a servo motor (15) is installed below the lifting motor fixing plate (10), the lower end of the precision lead screw (16) moves up and down in the servo motor, and four fixing sleeves (13) are fixed on the lifting motor fixing plate (10) at the four corners of the servo motor (15).
6. The infrared heating mechanical wire spreading device according to claim 4, characterized in that: The moving device comprises four movable roller bracket guide posts (12) fixed on the movable roller bracket (11), two movable roller bearing end covers (18) fixed on the movable roller bracket (11), and two wire spreading rollers (20) with movable roller bearings (17) installed at both ends, which are installed between the movable roller brackets (11) through the movable roller bearing end covers (18) at both ends.
7. The infrared heating mechanical wire spreading device according to claim 1, characterized in that: The three groups of wire spreading roller mechanisms are installed at equal intervals on the tooling base plate (2), and the three groups of moving devices can be controlled separately.
8. The infrared heating mechanical wire spreading device according to claim 1, characterized in that: The wire spreading roller (20) is provided with a heating rod heating device and a thermocouple temperature detection device inside.
9. The infrared heating mechanical wire spreading device according to claim 1, characterized in that: The infrared heating device comprises infrared heating rods (4), wherein the upper four infrared heating rods (4) are fixed to the inner upper plate of the heat preservation box (3) by heating rod brackets (5), and the lower four infrared heating rods (4) are fixed between fixed roller brackets (6) by heating rod brackets (5), and are located below the wire spreading rollers (20) of the seven sets of wire spreading fixed roller mechanisms.
10. A method for using an infrared heating mechanical wire spreading device according to any one of claims 1 to 9, characterized in that: The steps include: A. The unstretched carbon fiber tow raw material is sequentially laid through the lower end of the spreading roller of the spreading fixed roller mechanism, the upper end of the spreading roller of the spreading moving roller mechanism, the lower end of the spreading roller of the spreading fixed roller mechanism, etc., alternately until the wire is collected from the other end; B. Close the side sliding door of the incubator, ensure that the upper and lower heating rods inside the incubator are normally turned on and can detect and adjust the temperature in real time, and ensure that the wire spreading rollers of the seven sets of wire spreading fixed roller mechanisms and the wire spreading rollers of the six sets of wire spreading moving roller mechanisms can be heated and can detect and adjust the temperature in real time; C. During the vibration wire spreading process, the servo motor of the wire spreading fixed roller mechanism drives the precision lead screw to move back and forth up and down. To ensure a larger wire spreading width, more uniform fiber density after spreading, and less fiber damage, the up and down vibration amplitudes of the wire spreading moving roller mechanism through which the wire bundle passes are small amplitude, medium amplitude, and large amplitude, respectively.