A carbon fiber tow spreading device

Abstract

The utility model discloses a kind of carbon fiber tow's spreading device, the carbon fiber tow's spreading device, comprising: rack;Poking structure, along the radial direction of carbon fiber tow slidably be located on rack, its sliding direction is poking direction. Through the sliding of poking structure in the radial direction of carbon fiber tow, exerting back and forth poking force to carbon fiber tow, so that the multiple filaments of and together are distinct, and then make the tow become loose, to reach the purpose of spreading, the sliding direction of poking structure is clear as poking direction, guarantee the accuracy and effectiveness of poking action, to ensure the uniformity of tow spreading.

Description

Technical Field

[0001] This utility model belongs to the field of textile equipment technology, specifically, it relates to a device for widening carbon fiber tow. Background Technology

[0002] Carbon fiber is a novel, high-performance organic fiber characterized by high strength, high modulus, high electrical conductivity, chemical resistance, and high temperature resistance. As an advanced structural and functional material, it is widely used in aerospace, wind turbine blades, sporting goods, and building materials. Due to its numerous excellent properties, carbon fiber has become a research hotspot, and in recent years, it has experienced widespread and rapid development.

[0003] Existing carbon fiber tows have a strong bundled nature after sizing, and it is necessary to reduce the bundled nature by expanding the width of the carbon fiber tows. During the process of widening the tows, the uniformity of the widening has a direct impact on the carbonization quality. Therefore, it is very important to ensure the uniformity of the widening.

[0004] In view of the above, this utility model is hereby proposed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a carbon fiber bundle widening device. By sliding the wire pulling structure in the radial direction of the carbon fiber bundle, a back-and-forth pulling force is applied to the carbon fiber bundle, so that the multiple single filaments that are tied together are clearly separated, thereby making the bundle loose and achieving the purpose of widening. The sliding direction of the wire pulling structure is clearly defined as the wire pulling direction, which ensures the accuracy and effectiveness of the wire pulling action and achieves the purpose of ensuring the uniformity of the bundle widening.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] This utility model provides a carbon fiber tow spreading device, comprising:

[0008] frame;

[0009] The wire drawing structure is slidably mounted on the frame along the radial direction of the carbon fiber bundle, and its sliding direction is the wire drawing direction.

[0010] Furthermore,

[0011] The wire drawing structure is a plate-like structure;

[0012] The wire drawing structure has a wire drawing part on the side facing the carbon fiber bundle that contacts the carbon fiber bundle;

[0013] The drawing section draws the carbon fiber bundles during the sliding process.

[0014] Furthermore,

[0015] The wire-drawing section is elongated and extends along the sliding direction;

[0016] The drawing section is provided with several actuating teeth arranged along the sliding direction, with the tip of each actuating tooth facing the carbon fiber bundle.

[0017] Furthermore,

[0018] Several actuating teeth are evenly arranged along the sliding direction;

[0019] A groove is formed between two adjacent actuating teeth, with the opening facing the carbon fiber bundle.

[0020] The tip surface of the actuating tooth and the inner groove surface of the actuating tooth groove are both rounded.

[0021] Furthermore,

[0022] The wire drawing section is located at the lower part of the wire drawing structure;

[0023] The upper part of the wire drawing section is provided with a sliding part, through which the wire drawing section slides and is suspended on the frame.

[0024] Furthermore,

[0025] The wire-drawing structure is bent, having a vertical section and a horizontal section located at the top of the vertical section.

[0026] The wire-drawing part is located at the bottom of the vertical part; the horizontal part serves as the sliding part.

[0027] Furthermore,

[0028] The sliding part slides via the drive structure and is suspended on the frame.

[0029] Furthermore,

[0030] The drive structure includes a motor, a lead screw, and a lead screw nut connected in sequence;

[0031] The two ends of the lead screw are respectively mounted on the machine frame;

[0032] The sliding part is suspended on one side of the lead screw nut.

[0033] Furthermore,

[0034] The sliding part is provided with a fixing hole;

[0035] The top of the sliding part is fixed to a base via a fixing hole;

[0036] One side of the base fits against one side of the lead screw nut and is fixedly suspended on one side of the lead screw nut.

[0037] Furthermore,

[0038] The vertical part is provided with several through holes arranged along the sliding direction.

[0039] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art.

[0040] By sliding the fiber-pulling structure in the radial direction of the carbon fiber bundle, a back-and-forth pulling force is applied to the carbon fiber bundle, making the multiple single filaments that are tied together distinct, thereby loosening the bundle and achieving the purpose of widening. The sliding direction of the fiber-pulling structure is clearly defined as the fiber-pulling direction, ensuring the accuracy and effectiveness of the fiber-pulling action, thus ensuring the uniformity of the bundle widening.

[0041] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0042] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0043] Figure 1 This is a schematic diagram of a carbon fiber tow stretching device provided in an embodiment of the present invention.

[0044] Icons: 1-Frame; 2-Wire drawing structure; 21-Wire drawing part; 211-Actuating tooth; 212-Actuating tooth groove; 22-Sliding part; 23-Vertical part; 231-Through hole; 24-Horizontal part; 25-Base; 3-Drive structure; 31-Motor; 32-Lead screw; 33-Lead screw nut; 4-Carbon fiber bundle.

[0045] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0047] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0048] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0049] like Figure 1 As shown, this utility model provides a carbon fiber tow stretching device, comprising:

[0050] Rack 1;

[0051] The wire drawing structure 2 is slidably mounted on the frame 1 along the radial direction of the carbon fiber bundle, and its sliding direction is the wire drawing direction.

[0052] In the embodiments of this utility model, by sliding the wire-pulling structure 2 in the radial direction of the carbon fiber, a back-and-forth pulling force is applied to the carbon fiber bundle 4, making the multiple single filaments that are tied together distinct, thereby making the bundle loose and achieving the purpose of widening. The sliding direction of the wire-pulling structure 2 is clearly defined as the wire-pulling direction, ensuring the accuracy and effectiveness of the wire-pulling action, thereby ensuring the uniformity of the bundle widening.

[0053] The carbon fiber bundle 4 is composed of several radially distributed monofilaments.

[0054] As the basic support structure of the entire stretching device, it provides a stable installation position and spatial frame for other components such as wire drawing structure 2, ensuring that the relative positions of each component are fixed during the operation of the device, and guaranteeing the stability and accuracy of the stretching operation.

[0055] The fiber drawing structure 2 is slidably mounted on the frame 1 along the radial direction of the carbon fiber bundle 4. This mounting method allows the fiber drawing structure 2 to operate radially along the carbon fiber bundle 4, thereby widening the bundle. Its sliding direction is clearly defined as the drawing direction, ensuring the precision and effectiveness of the drawing action. The sliding of the fiber drawing structure 2 typically requires a drive device, such as a motor 31, pneumatic drive, or hydraulic drive.

[0056] For example, in the figure, the radial direction of the carbon fiber bundle 4 is the left-right direction, and the axial direction is the front-back direction. Then the sliding direction and the pulling direction are the left-right direction. The radial direction of the carbon fiber bundle 4 can be regarded as the arrangement direction of several single filaments.

[0057] In the embodiments of this utility model, the wire-drawing structure 2 is a plate-shaped structure;

[0058] The wire drawing structure 2 has a wire drawing part 21 that contacts the carbon fiber bundle 4 on the side facing the carbon fiber bundle 4;

[0059] The drawing section 21 draws the carbon fiber bundle 4 during the sliding process.

[0060] In this embodiment of the invention, the plate-like structure has a large planar dimension and a certain thickness, which enables the wire-drawing structure 2 to maintain good stability when sliding radially along the carbon fiber bundle. During the widening of the carbon fiber bundle 4, the carbon fiber will generate a reaction force on the wire-drawing structure 2. The plate-like structure can effectively disperse these forces, reduce swaying or deviation caused by uneven force, and ensure the accuracy and consistency of the wire-drawing action. Compared with some complex three-dimensional structures, the processing technology of the plate-like structure is relatively simple, and it can be manufactured using common processing methods such as cutting, stamping, and milling. Moreover, when installed on the frame 1, the positioning and fixing of the plate-like structure is also relatively convenient. It can be firmly connected to the frame 1 by bolts, welding, etc., improving the overall assembly efficiency of the device.

[0061] Lightweight materials, such as aluminum alloys or carbon fiber composites, can be used to fabricate the plate-shaped wire-drawing structure 2. While maintaining structural strength, reducing the weight of the wire-drawing structure 2 can lower the load on the drive unit and improve movement speed and responsiveness.

[0062] The wire drawing section can be integrally formed with the wire drawing structure, or it can be separate from the wire drawing structure.

[0063] During prolonged continuous operation, the friction between the wire drawing structure 2 and the carbon fiber bundle 4 may generate heat. To prevent heat accumulation from adversely affecting the wire drawing structure 2 and the carbon fiber bundle 4, heat dissipation holes, heat sinks, or materials with good thermal conductivity can be designed on the plate structure to improve heat dissipation efficiency.

[0064] The wire-pulling part 21 is located on the side of the wire-pulling structure 2 facing the carbon fiber bundle 4. This design allows the wire-pulling part 21 to directly contact the carbon fiber bundle 4 and apply force to the bundle during sliding, achieving the function of wire pulling and widening. By rationally designing the position and shape of the wire-pulling part 21, the effective contact area and force distribution between the wire-pulling part 21 and the carbon fiber bundle 4 can be ensured, improving the widening effect. It should be noted that the wire-pulling part can pull the carbon fiber bundle 4 from above or below.

[0065] When the drawing structure 2 slides radially along the carbon fiber bundle 4, the drawing part 21 moves relative to the carbon fiber bundle 4. The drawing part 21 applies a force along the sliding direction to the carbon fiber bundle 4, causing the fibers in the bundle to be stretched and dispersed, thereby achieving widening. This sliding drawing method is characterized by its simple operation and obvious widening effect. During the continuous sliding of the drawing structure 2, the drawing part 21 continuously performs drawing operations on the carbon fiber bundle 4, ensuring that the bundle is uniformly widened along its entire length. By controlling the sliding speed and stroke of the drawing structure 2, the speed and degree of widening can be adjusted to meet different production needs.

[0066] Furthermore, the wire-drawing part 21 is elongated and extends along the sliding direction;

[0067] The wire drawing section 21 is provided with a plurality of actuating teeth 211 arranged along the sliding direction, with the tip of each actuating tooth 211 facing the carbon fiber bundle 4.

[0068] In this embodiment of the invention, the elongated design provides good structural stability for the wire-pulling section 21. When pulling the carbon fiber bundle 4 along the sliding direction, the elongated shape can better withstand the reaction force from the bundle, and is less prone to deformation or bending, ensuring the accuracy and stability of the wire-pulling action.

[0069] The longer length allows the drawing section 21 to cover a larger area of ​​carbon fiber bundle 4 during a single sliding motion, improving the widening efficiency. Especially for wider carbon fiber bundles 4, the elongated drawing section 21 can process more fibers at once, reducing the number of sliding operations and shortening the production cycle.

[0070] A number of actuating teeth 211 are evenly arranged along the sliding direction, which can evenly distribute the force exerted by the drawing part 21 on the carbon fiber bundle 4 to each actuating tooth 211. This can avoid excessive local force that could damage the fibers, while ensuring that the entire bundle receives a relatively uniform stretching and dispersion effect during the widening process, thus improving the uniformity of the widening quality. The regular arrangement of the actuating teeth 211 makes the drawing process more orderly. During the sliding process, each actuating tooth 211 contacts the carbon fiber bundle 4 in sequence, drawing the fibers apart in a certain order, which helps to control the direction and degree of fiber dispersion, making the structure of the widened bundle more regular.

[0071] Each actuating tooth 211 has its tip facing the carbon fiber bundle 4. This design allows the actuating tooth 211 to contact the fiber with its sharpest part, achieving precise fiber pulling. The tooth tip can more easily insert into the gaps between fibers, effectively dispersing the fibers and improving the fiber pulling effect. Compared to other contact methods, the tip-facing design reduces the contact area between the actuating tooth 211 and the carbon fiber bundle 4, thereby reducing frictional resistance. This not only facilitates the sliding of the fiber pulling structure 2 and reduces energy consumption, but also reduces the heat generated by friction, minimizing the impact on the carbon fiber performance. The shape of the actuating tooth can be triangular, trapezoidal, or rectangular, etc. A fiber cleaning device can be installed on the fiber pulling structure 2 to periodically clean the fibers wrapped around the actuating tooth 211, ensuring the normal operation of the fiber pulling structure 2.

[0072] Furthermore, a number of actuating teeth 211 are evenly arranged along the sliding direction;

[0073] A groove 212 is formed between two adjacent actuating teeth 211, with the opening facing the carbon fiber bundle 4.

[0074] The tip surface of the actuating tooth 211 and the inner groove surface of the actuating tooth groove 212 are respectively treated with arcs.

[0075] In this embodiment of the invention, a plurality of actuating teeth 211 are evenly distributed along the sliding direction, providing a basis for the uniformity of force on the carbon fiber bundle 4 during the drawing process. Each actuating tooth 211 can apply a relatively balanced force to the bundle, avoiding excessive or insufficient local force, so that the fibers can be dispersed smoothly and orderly during the broadening process. The number of evenly distributed actuating teeth 211 can be adjusted according to actual production needs. Increasing the number of actuating teeth 211 can improve the fineness of drawing and the broadening effect, which is suitable for scenarios with high requirements for fiber dispersion; reducing the number of actuating teeth 211 can simplify the structure and reduce manufacturing costs, which is suitable for some situations with relatively low requirements for broadening accuracy.

[0076] The design of the groove facing the carbon fiber tow 4 allows the actuating groove 212 to accurately capture the fibers. When the fiber-drawing structure 2 slides, the fibers are more likely to enter the actuating groove 212, providing good guidance for subsequent fiber dispersion and broadening, thus improving the accuracy and efficiency of fiber drawing.

[0077] The rounded inner groove surface provides a gentler contact with the fiber, avoiding the cutting and scratching caused by sharp edges. During the drawing process, the fiber slides along the rounded surface, reducing fiber breakage and surface damage caused by localized stress concentration, which helps maintain the integrity and performance of the carbon fiber.

[0078] The tooth tips can be rounded to reduce damage to the carbon fiber bundle 4.

[0079] As the fiber-drawing structure 2 slides radially along the carbon fiber, the fibers naturally enter the grooves 212 between adjacent actuating teeth 211 because the groove openings of the actuating teeth 212 face the fiber bundle. As the fiber-drawing structure 2 continues to slide, the actuating teeth 211 apply a pulling force along the sliding direction to the fibers entering the grooves, while the arc-shaped inner groove surface guides the fibers to move and disperse smoothly within the grooves. Because the actuating teeth 211 are evenly distributed, the entire fiber bundle experiences a similar fiber-drawing effect at different positions, causing the fibers to gradually disperse throughout the width of the fiber bundle, ultimately achieving the widening of the carbon fiber bundle 4 and improving the uniformity of the widening. The actuating teeth 211 and the actuating grooves 212 give the fiber-drawing section 21 a wavy shape.

[0080] After the carbon fiber bundle 4 is widened, it is stretched axially by guide rollers to flatten and widen the carbon fiber bundle 4.

[0081] In an embodiment of this utility model, the wire-drawing part 21 is located at the lower part of the wire-drawing structure 2;

[0082] The upper part of the wire drawing part 21 is provided with a sliding part 22, and the wire drawing part 21 slides through the sliding part 22 and is suspended on the frame 1.

[0083] In this embodiment of the invention, the wire-pulling part 21 is positioned at the lower part of the wire-pulling structure 2, which conforms to the usual arrangement and widening operation habits of the carbon fiber bundle 4. In practical applications, the carbon fiber bundle 4 is generally located at a relatively low position. Placing the wire-pulling part 21 at the lower part allows for more direct and effective contact with the carbon fiber bundle 4, facilitating the pulling and widening operation of the bundle. At the same time, this layout also benefits the overall center of gravity distribution of the device, making the device more stable during operation and reducing the risk of swaying or tipping due to a high center of gravity.

[0084] The sliding part 22 is a key structure that enables the wire drawing structure 2 to slide radially along the carbon fiber. Through the cooperation of the sliding part 22 and the frame 1, the wire drawing part 21 can slide smoothly on the frame 1, thereby realizing the wire drawing action. This design separates the sliding function and the support function of the wire drawing part 21; the sliding part 22 focuses on achieving sliding, while the frame 1 provides stable support, ensuring the stability and accuracy of the wire drawing process.

[0085] The suspension design of the wire drawing section 21 can reduce the impact of vibrations generated during device operation on the wire drawing section 21 to a certain extent, allowing the wire drawing section 21 to interact more smoothly with the carbon fiber bundle 4. At the same time, this design also facilitates the installation, adjustment, and maintenance of the wire drawing section 21, and can be operated relatively easily when the wire drawing section 21 is worn or needs to be replaced.

[0086] Specifically, the wire-drawing structure 2 is bent, having a vertical portion 23 and a horizontal portion 24 located at the top of the vertical portion 23.

[0087] The wire-pulling part 21 is located at the bottom of the vertical part 23; the horizontal part 24 serves as the sliding part 22.

[0088] In this embodiment of the invention, the vertical structure provides the wire-drawing part 21 with a certain degree of stability in the vertical direction, enabling it to better withstand the reaction force from the carbon fiber bundle 4 during the wire-drawing process, thus ensuring the accuracy and stability of the wire-drawing action. Simultaneously, the vertical part 23 also provides a certain height for the entire wire-drawing structure 2, facilitating its integration and installation with other components.

[0089] The horizontal section 24 cooperates with the frame 1 and can slide smoothly on the frame 1, thereby driving the entire wire drawing structure 2 to move. The horizontal section 24 is located at the top of the vertical section 23, serving a connecting and balancing function. It increases the overall stability of the wire drawing structure 2, preventing the device from wobbling or tipping over due to a shift in the center of gravity during sliding. Simultaneously, the horizontal section 24 also provides mounting positions for other possible auxiliary components, such as the drive structure 3 that drives the sliding section 22 to slide.

[0090] In this embodiment of the present invention, the sliding part 22 slides via the driving structure 3 and is suspended on the frame 1.

[0091] In this embodiment of the invention, the driving structure 3 provides a power source for the sliding part 22, enabling the sliding part 22 to slide according to a predetermined manner and trajectory. In the carbon fiber tow 4 widening device, the sliding part 22 needs to drive the drawing part 21 to slide radially along the carbon fiber to achieve the widening operation of the carbon fiber tow 4. The driving structure 3 can be a motor 31 that converts rotational motion into linear motion of the sliding part 22 through a transmission device, enabling the sliding part 22 to precisely control the sliding distance and speed. For example, the transmission device can be a lead screw and nut pair, a gear and rack pair, etc.

[0092] Specifically, the drive structure 3 includes a motor 31, a lead screw 32, and a lead screw nut 33 connected in sequence;

[0093] The two ends of the lead screw 32 are respectively mounted on the frame 1;

[0094] The sliding part 22 is suspended on one side of the lead screw nut 33.

[0095] Motor 31 is the core power supply component of the entire drive structure 3. It can convert electrical energy into mechanical energy to power the rotation of the lead screw 32. Depending on the different stretching requirements, different power and type of motor 31 can be selected. For example, stepper motor 31 can achieve precise stepping control, while servo motor 31 can provide more precise speed and position control to meet the requirements of motion accuracy and speed of sliding part 22 during the stretching of carbon fiber tow 4.

[0096] The lead screw 32 is a key component that converts the rotational motion of the motor 31 into linear motion. When the motor 31 drives the lead screw 32 to rotate, the lead screw nut 33 will move linearly along the axis of the lead screw 32, thereby driving the sliding part 22 connected to the lead screw nut 33 to move, realizing the sliding and widening operation of the wire drawing part 21 along the radial direction of the carbon fiber.

[0097] The lead screw 32 is mounted on the frame 1 at both ends. The frame 1 provides stable support for the lead screw 32, ensuring that the lead screw 32 will not bend or vibrate excessively during rotation. At the same time, the axial direction of the lead screw 32 also plays a certain guiding role, guiding the lead screw nut 33 to perform linear motion.

[0098] The lead screw nut 33 cooperates with the lead screw 32 to convert the rotational motion of the lead screw 32 into its own linear motion. As an intermediate transmission component, it connects the lead screw 32 and the sliding part 22, transmitting the power of the motor 31 to the sliding part 22, thus realizing the motion transmission function of the entire drive structure 3. The suspension design can reduce the swaying and offset of the sliding part 22 during movement to a certain extent, improving the structural stability of the entire device. At the same time, this design also facilitates the installation, debugging, and maintenance of the sliding part 22 and the lead screw pulling part 21.

[0099] Furthermore, the sliding part 22 is provided with a fixing hole;

[0100] The top of the sliding part 22 is fixed with a base 25 through a fixing hole;

[0101] One side of the base 25 is attached to one side of the lead screw nut 33 and is fixedly suspended on one side of the lead screw nut 33.

[0102] The mounting holes provide a precise installation position for the connection between the base 25 and the sliding part 22. By pre-setting mounting holes on the sliding part 22, it can be ensured that the base 25 can be accurately installed at the designated position on the top of the sliding part 22, laying the foundation for the stable operation and precise widening operation of the entire widening device. The mounting holes are usually of a standardized design, and common fasteners such as bolts and screws can be used to fix the base 25 to the sliding part 22.

[0103] The base 25 serves as a connecting bridge between the sliding part 22 and the lead screw nut 33, playing a role in transition and force transmission. It closely links the movement of the sliding part 22 with the movement of the lead screw nut 33, ensuring that the linear motion of the lead screw nut 33 can be accurately transmitted to the sliding part 22, thereby driving the wire-drawing part 21 to complete the widening action.

[0104] Due to the fixed hole, base 25, and the close fit between base 25 and lead screw nut 33, the movement of sliding part 22 can more accurately follow the movement of lead screw nut 33. When motor 31 drives lead screw nut 33 through lead screw 32, base 25 transmits this precise linear motion to sliding part 22, which in turn drives wire drawing part 21 to widen carbon fiber bundle 4. This precise motion transmission reduces error accumulation during the widening process and improves the uniformity and accuracy of widening. Buffering and shock-absorbing elements, such as rubber pads and springs, are added to the connection between base 25 and sliding part 22 or lead screw nut 33. These elements can absorb and disperse vibrations and impacts generated during movement, reducing the impact on the device and further improving the stability and reliability of the device. Base 25 is screwed to lead screw nut 33.

[0105] In an embodiment of this utility model, the vertical part 23 is provided with a plurality of through holes 231 arranged along the sliding direction.

[0106] In this embodiment of the invention, a through hole 231 is provided on the vertical part 23, which can effectively reduce the amount of material used. Reducing its weight lowers the inertia of the entire device, allowing the sliding part 22 to start, stop, and change direction more quickly and flexibly under the drive of the motor 31, thus improving the dynamic response performance of the device. The through hole 231 provides a convenient channel for internal wiring. In the extended device, these through holes 231 can guide the orderly arrangement of power and signal lines connecting components such as the motor 31, avoiding tangled cables and improving the neatness and safety of the device.

[0107] When the widening device operates for extended periods, components such as the motor 31 generate heat. The through-hole 231 in the vertical section 23 increases the airflow area, creating a good ventilation channel and promoting heat dissipation. This helps reduce the internal temperature of the device, preventing component performance degradation or damage due to excessive temperature, and improving the reliability and service life of the device.

[0108] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A device for widening carbon fiber tow, characterized in that, include: frame; The wire drawing structure is slidably mounted on the frame along the radial direction of the carbon fiber bundle, and its sliding direction is the wire drawing direction; The wire drawing structure is a plate-like structure; The wire drawing structure has a wire drawing part on the side facing the carbon fiber bundle that contacts the carbon fiber bundle; The drawing section draws the carbon fiber bundle during the sliding process; the drawing section and the drawing structure are integrally formed. The wire-drawing section is elongated and extends along the sliding direction; The wire drawing section is provided with several actuating teeth arranged along the sliding direction, with the tip of each actuating tooth facing the carbon fiber bundle. Several actuating teeth are evenly arranged along the sliding direction; A groove is formed between two adjacent actuating teeth, with the opening facing the carbon fiber bundle. The wire drawing section is located at the lower part of the wire drawing structure; The upper part of the wire drawing section is provided with a sliding part, and the wire drawing section slides through the sliding part and is suspended on the frame; The wire-drawing structure is bent, having a vertical section and a horizontal section located at the top of the vertical section. The wire-drawing part is located at the bottom of the vertical part; the horizontal part serves as the sliding part. The sliding part slides via the drive structure and is suspended on the frame; The drive structure includes a motor, a lead screw, and a lead screw nut connected in sequence; The two ends of the lead screw are respectively mounted on the machine frame; The sliding part is suspended on one side of the lead screw nut; The sliding part is provided with a fixing hole; The top of the sliding part is fixed to a base via a fixing hole; One side of the base fits against one side of the lead screw nut and is fixedly suspended on one side of the lead screw nut.

2. The widening device according to claim 1, characterized in that, The tip surface of the actuating tooth and the inner groove surface of the actuating tooth groove are both rounded.

3. The widening device according to claim 1, characterized in that, The vertical part is provided with several through holes arranged along the sliding direction.

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