A carbon fiber composite material melt impregnation device

Abstract

The invention belongs to the field of melt impregnation equipment, and discloses a melt impregnation device for carbon fiber composite materials. The tensile force exerted on the carbon fiber bundle by the winding device of the existing melt impregnation equipment is equal to the dynamic friction between the carbon fiber bundle and the slow-winding combined cylinder. The dynamic friction between the carbon fiber bundle and the slow-winding combined cylinder is controlled by the contact range between the carbon fiber bundle and the slow-winding combined cylinder. The prior art cannot adjust the contact range. If the dynamic friction is too small, a good stretching effect cannot be achieved. If the friction is too large, the carbon fiber bundle is easily broken, which is inconvenient to use. The technical solution exemplified by the present invention includes a base, a mounting plate is fixedly installed on the top surface of the base, and two transmission rollers are rotatably installed on the front side of the mounting plate through a rotating shaft. The present invention can give the carbon fiber bundle a relatively stable force through a counterweight device, so that the tensile effect of the carbon fiber is better. The force applied to the carbon fiber bundle can be adjusted through the counterweight device, which is easy to use.

Description

Technical Field

[0001] The invention belongs to the field of melt impregnation equipment, and in particular relates to a carbon fiber composite material melt impregnation device. Background Art

[0002] Carbon fiber composite material is an inorganic high-performance fiber transformed from organic fiber through a series of heat treatments, and its carbon content is higher than 90%. It has the inherent characteristics of carbon materials and the softness and processability of textile fibers, and is a new generation of reinforcing fibers. Carbon fiber composite materials have the characteristics of light weight, high strength, high rigidity, corrosion resistance, high temperature resistance, and fatigue resistance, so they have been widely used in aerospace, automobiles, sports equipment, construction and other fields;

[0003] The melt impregnation method is a commonly used method for producing carbon fiber composite materials. When using the melt impregnation method to produce carbon fiber composite materials, it is necessary to make the molten thermoplastic resin infiltrate and wet the carbon fiber. At the same time, it is necessary to use equipment to pull and reel the carbon fiber bundle. Due to the high viscosity of the resin and the large melt resistance, the carbon fiber bundle is easily stuck, which can easily cause the carbon fiber bundle to be broken due to excessive tension, which will greatly slow down the production efficiency.

[0004] To solve the above problems, a Chinese patent with publication number CN117549459B discloses a melt impregnation device for automobile carbon fiber composite materials. The tensile force of the winding device of the prior art on the carbon fiber bundle is equal to the dynamic friction between the carbon fiber bundle and the slow-winding combined cylinder. The dynamic friction between the carbon fiber bundle and the slow-winding combined cylinder is controlled by the contact range between the carbon fiber bundle and the slow-winding combined cylinder. The prior art cannot adjust the contact range. If the dynamic friction is too small, it cannot achieve a good stretching effect. If the friction is too large, the carbon fiber bundle is easily broken, which is inconvenient to use. Summary of the invention

[0005] In order to solve the deficiencies in the above-mentioned prior art, the purpose of the present invention is to provide a carbon fiber composite material melt impregnation device, which can give a relatively stable force to the carbon fiber bundle through a counterweight device, so that the stretching effect of the carbon fiber is better. Secondly, the force applied to the carbon fiber bundle can be adjusted through the counterweight device, and it is easy to use.

[0006] The technical solution adopted by the carbon fiber composite material melt impregnation device to solve its technical problems is:

[0007] A carbon fiber composite material melt impregnation device is provided, comprising a base, a mounting plate is fixedly installed on the top surface of the base, two transmission rollers are rotatably installed on the front side of the mounting plate through a rotating shaft, a driving device for driving the two transmission rollers to rotate synchronously is arranged on the rear side of the mounting plate, a winding device is arranged on the front side of the mounting plate, the driving device can drive the winding device to rotate, a vertical through groove is opened on the front side of the mounting plate, an I-shaped slider is arranged in the through groove, a first guide wheel is rotatably installed in front of the slider, a counterweight device is arranged on the rear side of the slider, and the counterweight device can adjust its gravity.

[0008] Furthermore, second guide wheels are respectively arranged on both sides of the first guide wheel, and the second guide wheels are rotatably mounted on the mounting plate through mounting frames. The mounting frames can prevent the installation of the second guide wheels from affecting the movement of the slider, and the gap between the second guide wheels is equal to the diameter of the first guide wheels.

[0009] Furthermore, the winding device includes a winding shaft, a winding drum, an adjusting ring, several arc-shaped friction blocks, and several elastic blocks. The winding shaft passes through the mounting plate and is rotatably connected. The winding drum is arranged on the winding shaft. The adjusting ring is rotatably installed on the rear side of the mounting plate. The adjusting ring is colinear with the center line of the winding shaft. The elastic blocks are respectively fixedly installed on the inner wall of the adjusting ring and are evenly distributed. The friction blocks are fixedly installed on the elastic blocks. The friction blocks are all in contact with the outer periphery of the winding shaft. The driving device can drive the adjusting ring to rotate.

[0010] Furthermore, the driving device includes three first gears, three second gears, three worm wheels, a worm and a driving motor, wherein one of the first gears is rotatably installed on the outer periphery of the adjusting ring, the other two first gears are coaxially installed with the corresponding transmission rollers, the second gears are rotatably installed on the rear side of the mounting plate, the second gears are respectively meshed with the corresponding first gears, the worm wheels are respectively coaxially installed with the corresponding second gears, the worm wheels are meshed with the worm, the driving motor is fixedly installed on the rear side of the mounting plate, and one end of the worm is fixedly connected to the output shaft of the driving motor.

[0011] Furthermore, the linear speed at which the winding drum is driven to rotate by the driving device is greater than the linear speed of the rotating transmission roller.

[0012] Furthermore, the counterweight device is a water tank, which is fixedly installed on the rear side of the slider, and a water control device is provided on the water tank, and an adjustment device for adjusting the position of the water tank is provided on the base.

[0013] Furthermore, the water control device includes a two-way water pump, a first water pipe and a second water pipe, the second water pipe is a hose, the two-way water pump is fixedly installed on the top surface of the base, one end of the first water pipe is fixedly connected to one of the connection ports of the two-way water pump, the other connection port of the two-way water pump is fixedly connected to one end of the second water pipe, the second water pipe passes through the top surface of the water tank and is fixedly connected, and the other end of the second water pipe is located at the bottom of the water tank.

[0014] Furthermore, the adjusting device shown includes an adjusting motor, a screw, a movable plate and a limit plate. The adjusting motor is fixedly installed on the top surface of the base, the lower end of the screw is fixedly connected to the output shaft of the adjusting motor, the screw passes through the movable plate and is threadedly engaged, the front side of the movable plate is in sliding contact with the back of the mounting plate, the limit plate is fixedly installed on one side of the water tank, and the top surface of the movable plate can contact the bottom surface of the limit plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. A carbon fiber composite material melt impregnation device exemplified in the present invention winds the carbon fiber bundle on two transmission rollers for several turns respectively, and the carbon fiber bundle passes around the lower part of the first guide wheel. The counterweight device can give the carbon fiber bundle a downward force through the slider and the first guide wheel, so that the carbon fiber bundle between the transmission rollers can be in a tensioned state, and a relatively stable force can be given to the carbon fiber bundle. Finally, the carbon fiber bundle is wound up by the winding device. Compared with the prior art, the present invention can give the carbon fiber bundle a relatively stable force through the counterweight device, so that the stretching effect of the carbon fiber is better. Secondly, the force applied to the carbon fiber bundle can be adjusted through the counterweight device, which is easy to use.

[0017] 2. In a carbon fiber composite material melt impregnation device according to an example of the present invention, the second guide wheel can guide the carbon fiber bundle, so that the carbon fiber bundle between the second guide wheel and the first guide wheel is in a vertical stress state, which is convenient for controlling the stress of the carbon fiber bundle.

[0018] 3. A carbon fiber composite material melt impregnation device according to an example of the present invention drives an adjusting ring to rotate through a driving device. The rotation of the adjusting ring can drive the winding shaft to rotate through an elastic block and a friction block, thereby causing the winding drum to wind up the carbon fiber bundle. If the resistance of the carbon fiber bundle to the winding drum is greater than the friction between the friction block and the winding shaft, the winding shaft cannot be driven to rotate.

[0019] 4. A carbon fiber composite material melt impregnation device according to an example of the present invention, when the driving motor is turned on, the output shaft of the driving motor can drive the worm to rotate, the rotation of the worm can drive the worm wheel to rotate synchronously, and the rotation of the worm wheel can drive the adjustment ring and the transmission roller to rotate through the second gear and the first gear. The driving device has a simple structure and is easy to use.

[0020] 5. In a carbon fiber composite material melt impregnation device according to an example of the present invention, the linear speed of the winding drum is greater than the linear speed of the rotating transmission roller, so that the carbon fiber bundle on the transmission roller adjacent to the winding drum can be in a tightened state.

[0021] 6. A carbon fiber composite material melt impregnation device according to an example of the present invention can control the amount of water in a water tank through a water control device, thereby controlling the weight of the water tank, and can adjust the position of the water tank through an adjustment device, thereby controlling the first guide wheel to contact or separate from the carbon fiber bundle.

[0022] 7. A carbon fiber composite material melt impregnation device according to an example of the present invention can pass water into a water tank or discharge water from the water tank through a two-way water pump, thereby adjusting the amount of water in the water tank. The water control device has a simple structure and is easy to use.

[0023] 8. A carbon fiber composite material melt impregnation device according to an example of the present invention, when the adjusting motor is turned on, the output shaft of the adjusting motor rotates to drive the screw to rotate, and the screw rotation can drive the movable plate to move up and down. The movable plate moves up and down, and the movable plate can contact with the limit plate and drive the water tank to move up and down. The movable plate moves downward and can be separated from the limit plate, so that the water tank can apply force to the carbon fiber bundle through the slider and the first guide wheel. The adjusting device has a simple structure and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0025] Figure 1 It is a structural schematic diagram of the present invention;

[0026] Figure 2 It is a rear view of the present invention.

[0027] In the figure: 1 base; 2 mounting plate; 3 transmission roller; 4 through groove; 5 slider; 6 first guide wheel; 7 second guide wheel; 8 take-up shaft; 9 take-up drum; 10 adjustment ring; 11 friction block; 12 elastic block; 13 first gear; 14 second gear; 15 worm wheel; 16 worm; 17 drive motor; 18 water tank; 19 two-way water pump; 20 first water pipe; 21 second water pipe; 22 adjustment motor; 23 screw; 24 movable plate; 25 limit plate. DETAILED DESCRIPTION

[0028] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0029] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] like Figure 1 and 2 As shown, a carbon fiber composite material melt impregnation device comprises a base 1, a mounting plate 2 is fixedly mounted on the top surface of the base 1, two transmission rollers 3 are rotatably mounted on the front side of the mounting plate 2 through a rotating shaft, a driving device for driving the two transmission rollers 3 to rotate synchronously is arranged on the rear side of the mounting plate 2, a winding device is arranged on the front side of the mounting plate 2, the driving device can drive the winding device to rotate, a vertical through groove 4 is opened on the front side of the mounting plate 2, the through groove 4 is arranged between the two transmission rollers 3, an I-shaped slider 5 is arranged in the through groove 4, a first guide wheel 6 is rotatably mounted in front of the slider 5, a counterweight device is arranged on the rear side of the slider 5, and the counterweight device can adjust its gravity. The carbon fiber bundle is wound on the two driving rollers 3 for several turns respectively, and the carbon fiber bundle passes around the lower part of the first guide wheel 6. The counterweight device can apply a downward force to the carbon fiber bundle through the slider 5 and the first guide wheel 6, so that the carbon fiber bundle between the driving rollers 3 can be in a tensioned state, and a relatively stable force can be given to the carbon fiber bundle. Finally, the carbon fiber bundle is wound up by the winding device. Compared with the prior art, the present invention can give a relatively stable force to the carbon fiber bundle through the counterweight device, so that the stretching effect of the carbon fiber is better. Secondly, the counterweight device can adjust the force of the carbon fiber bundle, which is easy to use.

[0031] like Figure 1 and 2 As shown, further preferably, second guide wheels 7 are respectively provided on both sides of the first guide wheel 6, and the second guide wheels 7 are respectively rotatably mounted on the mounting plate 2 through mounting frames, and the mounting frames can prevent the installation of the second guide wheels 7 from affecting the movement of the slider 5, and the gap between the second guide wheels 7 is equal to the diameter of the first guide wheel 6. The second guide wheel 7 can guide the carbon fiber bundle, so that the carbon fiber bundle between the second guide wheel 7 and the first guide wheel 6 is in a vertical force state, which is convenient for controlling the force on the carbon fiber bundle.

[0032] like Figure 1 and 2As shown, further preferably, the winding device includes a winding shaft 8, a winding drum 9, an adjusting ring 10, several arc-shaped friction blocks 11, and several elastic blocks 12. The winding shaft 8 passes through the mounting plate 2 and is rotatably connected. The winding drum 9 is arranged on the winding shaft 8, and the winding shaft 8 can drive the winding drum 9 to rotate. The adjusting ring 10 is rotatably installed on the rear side of the mounting plate 2. The adjusting ring 10 is colinear with the center line of the winding shaft 8. The elastic blocks 12 are respectively fixedly installed on the inner wall of the adjusting ring 10 and are evenly distributed. The friction blocks 11 are fixedly installed on the elastic blocks 12. The friction blocks 11 are all in contact with the outer periphery of the winding shaft 8, and the driving device can drive the adjusting ring 10 to rotate. The adjusting ring 10 is driven to rotate by the driving device, and the rotation of the adjusting ring 10 can drive the winding shaft 8 to rotate through the elastic block 12 and the friction block 11, so that the winding drum 9 can wind up the carbon fiber bundle. If the resistance of the carbon fiber bundle to the winding drum 9 is greater than the friction force between the friction block 11 and the winding shaft 8, the winding shaft 8 cannot be driven to rotate.

[0033] like Figure 1 and 2 As shown, further preferably, the driving device includes three first gears 13, three second gears 14, three worm wheels 15, a worm 16 and a driving motor 17, wherein one of the first gears 13 is rotatably installed on the outer periphery of the adjusting ring 10, and the other two first gears 13 are coaxially installed with the corresponding transmission roller 3, respectively. The coaxial installation is that the first gear 13 is fixedly installed on the rotating shaft of the corresponding transmission roller 3, and the rotation of the first gear 13 can drive the transmission roller 3 to rotate through the rotating shaft, and the second gears 14 are rotatably installed on the rear side of the mounting plate 2, and the second gears 14 are respectively meshed with the corresponding first gears 13, and the worm wheels 15 are respectively coaxially installed with the corresponding second gears 14, and the worm wheels 15 are meshed with the worm 16, and the driving motor 17 is fixedly installed on the rear side of the mounting plate 2, one end of the worm 16 is fixedly connected to the output shaft of the driving motor 17, and the worm 16 is installed on the rear side of the mounting plate 2 through a bearing seat. The worm 16 is a two-stage structure, and the two ends of the worm 16 are connected by a one-way bearing. The specific setting method is as follows Figure 2 As shown, by controlling the drive motor 17 and the one-way bearing, the transmission roller 3 on the left can be driven to rotate counterclockwise, while the transmission roller 3 on the right can only rotate clockwise and cannot rotate counterclockwise. When the drive motor 17 and the one-way bearing can drive the transmission roller 3 on the left to rotate clockwise, the transmission roller 3 on the right can also rotate clockwise, thereby shortening the length of the carbon fiber bundle between the two transmission rollers 3. Turning on the drive motor 17, the rotation of the output shaft of the drive motor 17 can drive the worm 16 to rotate, the rotation of the worm 16 can drive the worm wheel 15 to rotate synchronously, and the rotation of the worm wheel 15 can drive the adjustment ring 10 and the transmission roller 3 to rotate through the second gear 14 and the first gear 13. The drive device has a simple structure and is easy to use.

[0034] like Figure 1 and 2 As shown, further preferably, the linear speed of the winding drum 9 driven by the driving device is greater than the linear speed of the rotating transmission roller 3, and the transmission ratio between the corresponding first gear 13 and the second gear 14 on the adjusting ring 10 is set so that the linear speed of the winding drum 9 is greater than the linear speed of the transmission roller 3. This structure can make the carbon fiber bundle on the transmission roller 3 adjacent to the winding drum 9 in a tightened state.

[0035] like Figure 1 and 2 As shown, further preferably, the counterweight device is a water tank 18, which is fixedly mounted on the rear side of the slider 5, and a water control device is provided on the water tank 18, and an adjustment device for adjusting the position of the water tank 18 is provided on the base 1. The amount of water in the water tank 18 can be controlled by the water control device, and thus the weight of the water tank 18 can be controlled, and the position of the water tank 18 can be adjusted by the adjustment device, and thus the first guide wheel 6 can be controlled to contact or separate from the carbon fiber bundle.

[0036] like Figure 1 and 2 As shown, further preferably, the water control device includes a two-way water pump 19, a first water pipe 20 and a second water pipe 21, the second water pipe 21 is a hose, the two-way water pump 19 is fixedly installed on the top surface of the base 1, one end of the first water pipe 20 is fixedly connected to one of the connection ports of the two-way water pump 19, the other end of the first water pipe 20 is connected to a water source, the other connection port of the two-way water pump 19 is fixedly connected to one end of the second water pipe 21, the second water pipe 21 passes through the top surface of the water tank 18 and is fixedly connected, the top surface of the water tank 18 is provided with a vent hole, which is convenient for the water tank 18 to discharge water, the rear side of the water tank 18 is provided with an observation window and fixedly installed, which is convenient for checking the water volume in the water tank 18, and the other end of the second water pipe 21 is located at the bottom of the water tank 18. Water can be passed into the water tank 18 or the water in the water tank 18 can be discharged through the two-way water pump 19, so as to adjust the water volume in the water tank 18, and the water control device has a simple structure and is easy to use.

[0037] like Figure 1 and 2As shown, further preferably, the adjustment device shown includes an adjustment motor 22, a screw 23, a movable plate 24 and a limit plate 25, the adjustment motor 22 is fixedly installed on the top surface of the base 1, the lower end of the screw 23 is fixedly connected to the output shaft of the adjustment motor 22, the screw 23 penetrates the movable plate 24 and is threadedly matched, the front side of the movable plate 24 is in sliding contact with the back of the mounting plate 2, the limit plate 25 is fixedly installed on one side of the water tank 18, and the top surface of the movable plate 24 can contact the bottom surface of the limit plate 25. Turn on the adjustment motor 22, the output shaft of the adjustment motor 22 rotates to drive the screw 23 to rotate, the screw 23 rotates to drive the movable plate 24 to move up and down, the movable plate 24 moves up and down, the movable plate 24 can contact the limit plate 25 and drive the water tank 18 to move up and down, the movable plate 24 moves downward to separate from the limit plate 25, and the water tank 18 can apply force to the carbon fiber bundle through the slider 5 and the first guide wheel 6. The adjustment device has a simple structure and is easy to use.

[0038] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

[0039] Except for the technical features described in the specification, the remaining technical features are known technologies to those skilled in the art. In order to highlight the innovative features of the present invention, the remaining technical features will not be described here in detail.

Claims

1. A carbon fiber composite material melt impregnation device, comprising a base (1), a mounting plate (2) fixedly mounted on the top surface of the base (1), two transmission rollers (3) rotatably mounted on the front side of the mounting plate (2) via a rotating shaft, wherein: A driving device for driving two transmission rollers (3) to rotate synchronously is arranged on the rear side of the mounting plate (2), a winding device is arranged on the front side of the mounting plate (2), and the driving device can drive the winding device to rotate. A vertical through groove (4) is opened on the front side of the mounting plate (2), and an I-shaped slider (5) is arranged in the through groove (4). A first guide wheel (6) is rotatably mounted in front of the slider (5), and a counterweight device is arranged on the rear side of the slider (5). The counterweight device can adjust the gravity. Second guide wheels (7) are respectively arranged on both sides of the first guide wheel (6), and the second guide wheels (7) are respectively rotatably mounted on the mounting frame. On the mounting plate (2), the gap between the second guide wheels (7) is equal to the diameter of the first guide wheel (6), the winding device comprises a winding shaft (8), a winding drum (9), an adjusting ring (10), a plurality of arc-shaped friction blocks (11), and a plurality of elastic blocks (12), the winding shaft (8) passes through the mounting plate (2) and is rotatably connected, the winding drum (9) is arranged on the winding shaft (8), the adjusting ring (10) is rotatably mounted on the rear side of the mounting plate (2), the adjusting ring (10) and the center line of the winding shaft (8) are colinear, the elastic blocks (12) are respectively fixedly mounted on the inner wall of the adjusting ring (10) and are evenly distributed, the friction blocks (11) are fixed The friction blocks (11) are mounted on the elastic block (12), and are in contact with the outer periphery of the winding shaft (8). The driving device can drive the adjusting ring (10) to rotate. The driving device comprises three first gears (13), three second gears (14), three worm wheels (15), a worm (16) and a driving motor (17). One of the first gears (13) is respectively rotatably mounted on the outer periphery of the adjusting ring (10), and the other two first gears (13) are respectively coaxially mounted with the corresponding transmission rollers (3). The second gears (14) are respectively rotatably mounted on the rear side of the mounting plate (2). The second gears (14) are respectively connected to the corresponding first gears. The worm gears (15) are respectively coaxially mounted with the corresponding second gears (14), the worm gears (15) are all meshed with the worm (16), the driving motor (17) is fixedly mounted on the rear side of the mounting plate (2), one end of the worm (16) is fixedly connected to the output shaft of the driving motor (17), the worm (16) is a two-stage structure, and the two ends of the worm (16) are connected through a one-way bearing, the counterweight device is a water tank (18), the water tank (18) is fixedly mounted on the rear side of the slider (5), a water control device is arranged on the water tank (18), and an adjustment device for adjusting the position of the water tank (18) is arranged on the base (1).

2. A carbon fiber composite material melt impregnation device according to claim 1, characterized in that: The linear speed at which the winding drum (9) is driven to rotate by the driving device is greater than the linear speed of the rotating transmission roller (3).

3. The carbon fiber composite material melt impregnation device according to claim 1, characterized in that: The water control device comprises a two-way water pump (19), a first water pipe (20) and a second water pipe (21); the second water pipe (21) is a hose; the two-way water pump (19) is fixedly mounted on the top surface of the base (1); one end of the first water pipe (20) is fixedly connected to one of the connection ports of the two-way water pump (19); the other connection port of the two-way water pump (19) is fixedly connected to one end of the second water pipe (21); the second water pipe (21) passes through the top surface of the water tank (18) and is fixedly connected; the other end of the second water pipe (21) is located at the bottom of the water tank (18).

4. The carbon fiber composite material melt impregnation device according to claim 1, characterized in that: The adjustment device shown comprises an adjustment motor (22), a screw rod (23), a movable plate (24) and a limit plate (25), wherein the adjustment motor (22) is fixedly mounted on the top surface of the base (1), the lower end of the screw rod (23) is fixedly connected to the output shaft of the adjustment motor (22), the screw rod (23) passes through the movable plate (24) and is threadedly engaged, the front side of the movable plate (24) is in sliding contact with the rear side of the mounting plate (2), the limit plate (25) is fixedly mounted on one side of the water tank (18), and the top surface of the movable plate (24) can contact the bottom surface of the limit plate (25).

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