Ribbon tape guide device and guide rod heat dissipation method

Abstract

The invention relates to the technical field of woven ribbons, in particular to a woven ribbon guiding device and a guiding rod heat dissipation method.The woven ribbon guiding device comprises a hollow guiding rod rotationally installed on a rack, the two ends of the guiding rod communicate with the outer side, and an air cavity extending in the radial direction of the guiding rod is formed in the rod wall of the guiding rod; the air cavity communicates with the inner side and the outer side of the guide rod, and a sliding block is arranged in the air cavity in a sliding fit mode in the radial direction of the guide rod; an impeller is coaxially and rotatably mounted in the guide rod, a variable-speed transmission assembly is arranged between the impeller and the guide rod, the guide rod drives the impeller to rotate through the variable-speed transmission assembly when rotating on the rack, and the rotating speed of the guide rod is lower than that of the impeller. The problems that in the prior art, a guide rod mostly depends on heat conductivity of materials and natural convection of air to conduct passive heat dissipation, and the heat dissipation efficiency is low are solved.

Description

Technical Field

[0001] This invention relates to the field of textured webbing technology, specifically to a textured webbing guide device and a heat dissipation method for the guide rod. Background Technology

[0002] Textured webbing, a common narrow-width fabric, is widely used in clothing accessories, bag straps, car seat belts, and various industrial applications. During the production of textured webbing, to ensure stable weaving tension and a smooth finished product, the webbing, after being drawn from the weave, is typically wound at a certain angle around multiple smooth metal guide rods before being pulled and wound up by take-up rollers. These metal guide rods not only serve as the path carrier for the webbing but also perform multiple functions such as tension adjustment, flattening and correction, and natural cooling.

[0003] In existing technologies, guiding devices typically include a guide rod fixedly or rotatably mounted on a frame, with the webbing wound around it in an "S" or "U" shaped path. By increasing the contact area and wrap angle between the webbing and the rod, the principle of friction is used to achieve segmented isolation and amplification of tension.

[0004] However, with the continuous increase in weaving speed and the widespread use of synthetic fiber materials (such as polyester and nylon), a large amount of heat is generated between the synthetic fiber webbing and the metal rod surface under high-speed friction. Existing guide rods mostly adopt a solid structure or a simple hollow tube, relying solely on the material's own thermal conductivity and natural convection with the air for passive heat dissipation. This passive heat dissipation method is inefficient, causing heat to accumulate in the rod and easily creating a high-temperature environment on the guide rod. This leads to thermal deformation and increased shrinkage of the synthetic fiber webbing, affecting the dimensional stability of the product. In severe cases, it can even cause the webbing surface to melt and fray, resulting in a large amount of waste. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a weave guide device and a guide rod heat dissipation method to solve the problem that the guide rod in the prior art mostly relies on the thermal conductivity of the material itself and natural convection with the air for passive heat dissipation, resulting in low heat dissipation efficiency.

[0006] This invention is achieved through the following technical solution: A webbing guide device includes a hollow guide rod rotatably mounted on a frame. Both ends of the guide rod are connected to the outside. An air cavity is provided on the rod wall of the guide rod, extending radially toward the guide rod. The air cavity is connected to the inner and outer sides of the guide rod respectively. A sliding block is slidably fitted in the air cavity along the radial direction of the guide rod. An impeller is coaxially mounted inside the guide rod. A speed transmission assembly is provided between the impeller and the guide rod. When the guide rod rotates on the frame, it drives the impeller to rotate through the speed transmission assembly. The rotational speed of the guide rod is lower than that of the impeller.

[0007] Furthermore, an air hole communicating with the air chamber is provided on the outer circular surface of the guide rod, and the diameter of the air hole is smaller than the inner diameter of the air chamber.

[0008] Furthermore, an inner tube is coaxially fixedly installed inside the guide rod, and the outer wall of the inner tube is in contact with the inner wall of the guide rod; A through hole is provided on the outer wall of the inner tube at the position corresponding to the air cavity, and the diameter of the through hole is smaller than the inner diameter of the air cavity.

[0009] Furthermore, the sliding block is in the shape of a stepped shaft, with the larger diameter end of the sliding block slidingly engaging with the air cavity, and the smaller diameter end penetrating through the through hole and extending into the inner tube.

[0010] Furthermore, one end of the guide rod is open, and one end of the inner tube is inserted through the opening at that end of the guide rod and is fixedly connected in a detachable manner.

[0011] Furthermore, the guide rod has a central shaft coaxial with it inside, and multiple impellers are fixedly installed on the central shaft, with the multiple impellers arranged at equal intervals along the axial direction of the central shaft.

[0012] Furthermore, the transmission assembly is a planetary gear set, including a sun gear, planet gears, a planet carrier, and an internal gear ring. The sun gear and the internal gear ring are coaxial, and the planet gears are disposed between the sun gear and the internal gear ring, and mesh with the sun gear and the internal gear ring respectively. The planetary gears are rotatably mounted on the planet carrier, and the planet carrier is fixedly connected to the guide rod; One end of the sun gear passes through the planet carrier and is fixedly connected to the central shaft.

[0013] Furthermore, the planetary gear set is provided with a protective cover, one end of which is open and hollow, and the internal gear ring is embedded in the open end of the protective cover and fixedly connected. The end of the planetary carrier facing away from the planetary gears penetrates the end wall of the closed end of the protective cover, and the middle part of the planetary carrier is rotatably engaged with the end wall of the protective cover.

[0014] A heat dissipation method for a guide rod, comprising using the aforementioned woven tape guide device, includes the following steps: S1. Drive the guide rod to rotate: The webbing is wrapped around the outer surface of the guide rod and drives the guide rod to rotate on the frame under the action of traction force; S2. Generating internal airflow: When the guide rod rotates, the impeller is driven to rotate at an increased speed through the speed transmission assembly, so that the impeller generates axial airflow inside the guide rod, which performs forced convection heat transfer on the inner wall of the guide rod. S3. External airflow generation: During the rotation of the guide rod, the sliding block slides back and forth along the radial direction of the guide rod in the air cavity under the action of gravity, repeatedly changing the volume of the air cavity, driving the airflow to flow into or out of the guide rod through the air cavity, and forming turbulence on the outer surface of the guide rod. S4. Synergistic heat dissipation: The internal axial airflow and external turbulence work together to provide three-dimensional heat dissipation for the guide rod and the webbing on its surface.

[0015] Furthermore, the specific process of the sliding block driving the airflow in step S3 includes: Negative pressure intake stage: When the sliding block slides in the direction of the guide rod axis under the action of gravity, the volume of the air chamber outside the sliding block increases, forming a negative pressure, which draws low-temperature air from outside the guide rod into the air chamber through the air hole; Compression and exhaust stage: When the sliding block slides in the direction of the outer circular surface of the guide rod, the volume of the air chamber located outside the sliding block decreases, the internal air is compressed and ejected at high speed to the outside of the guide rod, blowing onto the outer surface of the guide rod and the webbing. Cyclic repetition: As the guide rod rotates continuously, the sliding block reciprocates within the air chamber under the influence of gravity, causing the intake and exhaust processes to alternate, creating a pulsed airflow around the guide rod.

[0016] The beneficial effects of this invention are as follows: This invention relates to a weave ribbon guiding device and a guide rod heat dissipation method. By setting an air cavity on the wall of the guide rod, the guide rod is rotated to make a sliding block slide within the air cavity, increasing or decreasing the space size outside the air cavity, drawing gas into the air cavity, or expelling the gas in the air cavity, promoting airflow near the outer surface of the guide rod. This passive heat dissipation method, relative to natural air convection, improves heat dissipation efficiency.

[0017] Meanwhile, an impeller is also installed inside the guide rod. When the guide rod rotates, the impeller can be driven to rotate at a faster speed through the speed transmission assembly, generating airflow along the axial direction of the guide rod. This promotes the circulation of hot and cold air on both the inner and outer sides of the guide rod, further improving heat dissipation efficiency.

[0018] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the planar structure of the guiding device in an embodiment of the present invention; Figure 2 This is a three-dimensional structural diagram of the guiding device in an embodiment of the present invention; Figure 3 This is an exploded view of the guiding device in an embodiment of the present invention; Figure 4 This is a three-dimensional structural diagram of the protective cover in an embodiment of the present invention; Figure 5 This is a three-dimensional structural diagram of the sliding block in an embodiment of the present invention; Figure 6 This is a three-dimensional structural diagram of an embodiment of the present invention.

[0020] In the diagram: 1. Frame; 2. Webbing; 3. Guide rod; 31. Air chamber; 311. Air hole; 32. Inner tube; 321. Through hole; 4. Sliding block; 5. Impeller; 6. Central shaft; 71. Sun gear; 72. Planet gear; 73. Planet carrier; 74. Internal gear ring; 8. Protective cover. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] In the above description of the present invention, it should be noted that the terms "one side," "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is conventionally placed during use. These terms are used only for the convenience of describing the present invention and for 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 the present invention. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable.

[0026] Please see Figure 1-6The present invention provides a technical solution: a weave 2 guiding device, including a hollow guide rod 3 rotatably mounted on a frame 1, both ends of the guide rod 3 being connected to the outside, and an air cavity 31 extending radially toward the guide rod 3 is provided on the rod wall of the guide rod 3, and the air cavity 31 is respectively connected to the inner and outer sides of the guide rod 3, and a sliding block 4 is slidably fitted in the air cavity 31 along the radial direction of the guide rod 3; An impeller 5 is coaxially mounted inside the guide rod 3. A speed transmission assembly is provided between the impeller 5 and the guide rod 3. When the guide rod 3 rotates on the frame 1, it drives the impeller 5 to rotate through the speed transmission assembly. The rotational speed of the guide rod 3 is lower than that of the impeller 5.

[0027] In this scheme, by setting an air cavity 31 on the wall of the guide rod 3, the guide rod 3 is rotated to make the sliding block 4 slide in the air cavity 31, increasing or decreasing the space size on the outside of the air cavity 31 (the side opposite to the axis of the guide rod 3), so that gas is drawn into the air cavity 31 or the gas in the air cavity 31 is forced out, which promotes the air flow near the outer surface of the guide rod 3. Compared with the passive heat dissipation method of natural air convection, the heat dissipation efficiency is improved.

[0028] Meanwhile, an impeller 5 is also installed inside the guide rod 3. When the guide rod 3 rotates, the impeller 5 can be driven to rotate at a faster speed through the speed transmission assembly, generating airflow along the axial direction of the guide rod 3, which promotes the circulation of hot and cold air on both the inner and outer sides of the guide rod 3, further improving the heat dissipation efficiency.

[0029] The system comprises multiple sets of air chambers 31, evenly arranged along the axial direction of the guide rod 3 to cover the axial area of ​​the guide rod 3. Each set of air chambers 31 consists of multiple chambers, evenly arranged around the circumference of the guide rod 3, ensuring that all air chambers 31 cover the outer surface of the guide rod 3. Each air chamber 31 has an independent channel connecting the inner and outer sides of the guide rod 3 and is equipped with a sliding block 4, allowing each air chamber 31 to independently perform air intake / exhaust operations.

[0030] The sliding block 4 can be made of materials such as copper alloy (e.g., tin bronze), polytetrafluoroethylene (PTFE), or polyetheretherketone (PEEK), while the guide rod 3 can be made of stainless steel or aluminum alloy. This ensures minimal friction between the sliding block 4 and the inner wall of the air chamber 31, allowing the sliding block 4 to slide within the air chamber 31 under its own weight, thus performing intake / exhaust operations. Furthermore, during the rotation of the guide rod 3, the sliding block 4 must overcome centrifugal force. Therefore, to ensure that the reciprocating motion of the sliding block 4 under gravity does not fail due to excessive centrifugal force, the operating speed and diameter of the guide rod 3 must be matched in a specific design.

[0031] Under ideal conditions where the guide rod 3 is horizontally installed and friction is ignored, the mechanical condition for the slider to slide inward at the highest point of the guide rod 3 is as follows: Where m is the mass of sliding block 4 (kg). g——acceleration due to gravity (9.8 m / s²); ω — angular velocity of the guide rod (rad / s), (ω=2πn / 60, n is the rotational speed); r — the radius of rotation of sliding block 4 (m) (approximately equal to the inner radius of guide rod 3); From this, the critical speed can be derived: As a preferred technical threshold, to ensure the stability of pulsed airflow under various operating conditions (including considering minor friction and airflow resistance), it is recommended that the operating speed of the guide rod n ≤ 0.85 × ncritical, that is, to retain at least 15% safety margin.

[0032] Example: Taking a guide rod 3 with an inner diameter of 60mm as an example, its theoretical critical speed is about 173rpm. Therefore, it is necessary to set the webbing traction speed so that the speed of the guide rod 3 is controlled below 150rpm. At this speed, gravity is always greater than centrifugal force, and the sliding block 4 can reliably fall back to the axis direction during each rotation, thereby stably completing the pulse cycle of intake / exhaust.

[0033] In this embodiment: an air hole 311 communicating with an air cavity 31 is provided on the outer circular surface of the guide rod 3, and the diameter of the air hole 311 is smaller than the inner diameter of the air cavity 31.

[0034] In this design, when the sliding block 4 compresses the air chamber 31 (the sliding block 4 is away from the axis of the guide rod 3), air is ejected at high speed through the small hole (air hole 311) to form a jet, which enhances the impact cooling of the outer surface. When intake is in progress, the small hole restricts the intake cross-section, which helps the air chamber 31 to establish a local negative pressure and improve intake efficiency. The nozzle effect is formed by the cooperation between the air hole 311 and the air chamber 31, which enhances the heat exchange capacity of the pulse airflow.

[0035] The aperture of the air hole 311 can be selected as 1mm or 2mm, so that air can flow into / out of the air chamber 31 normally. By setting the small-sized air hole 311, the influence on the smooth curved surface of the guide rod 3 is reduced, so as to stably support and pull the webbing 2.

[0036] In addition, the diameter of the air hole 311 is smaller than the inner diameter of the air cavity 31, which can restrict the sliding block 4 from sliding out of the air hole 311 and protruding from the outer surface of the guide rod 3, thus reducing interference with the webbing 2.

[0037] In this embodiment: an inner tube 32 is coaxially fixedly installed inside the guide rod 3, and the outer wall of the inner tube 32 is in contact with the inner wall of the guide rod 3; A through hole 321 is provided on the outer wall of the inner tube 32 at the corresponding position of the air cavity 31, and the diameter of the through hole 321 is smaller than the inner diameter of the air cavity 31.

[0038] In this design, the inner tube 32 is used to partially cover the inner end opening of the air chamber 31, thereby restricting the sliding block 4 from sliding completely out of the air chamber 31, so as to facilitate the processing and installation of components such as the guide rod 3 and the sliding block 4.

[0039] In this embodiment: the sliding block 4 is in the shape of a stepped shaft. The end of the sliding block 4 with a larger diameter is slidably engaged with the air cavity 31, and the end with a smaller diameter extends through the through hole 321 into the interior of the inner tube 32.

[0040] In this scheme, when the large end of the sliding block 4 abuts against the outer wall of the inner tube 32, the small end of the sliding block 4 extends into the inner tube 32, serving as a protruding structure on the inner circular surface of the inner tube 32, increasing the contact area with the air inside the inner tube 32, which can disturb the airflow inside the inner tube 32 and improve the internal heat exchange effect.

[0041] The diameter of the small end of the sliding block 4 is smaller than the diameter of the through hole 321 to avoid interference between the wall of the through hole 321 and the sliding block 4, so that the sliding block 4 can slide smoothly in the air cavity 31.

[0042] In this embodiment: one end of the guide rod 3 is open, and one end of the inner tube 32 is inserted into the opening at that end of the guide rod 3 and is fixedly connected by a detachable method.

[0043] In this solution, the inner tube 32 is simply inserted into the guide rod 3 and connected by bolts, which simplifies the installation process, facilitates the disassembly, cleaning or replacement of the inner tube 32, and reduces the later maintenance cost.

[0044] The dimension of the sliding block 4 along the sliding direction is smaller than the dimension of the air chamber 31 along the radial direction of the guide rod 3, so that the small end of the sliding block 4 can slide completely out of the through hole 321 on the inner tube 32, thereby disassembling and pulling out the inner tube 32.

[0045] In this embodiment: a central shaft 6 coaxial with the guide rod 3 is provided inside the guide rod 3, and multiple impellers 5 are fixedly installed on the central shaft 6, and the multiple impellers 5 are arranged at equal intervals along the axial direction of the central shaft 6.

[0046] In this solution, the multi-stage impeller 5 makes the axial airflow inside the guide rod 3 more uniform and stronger, reduces the attenuation of airflow in the long guide rod 3, and is suitable for the heat dissipation requirements of long guide rod 3.

[0047] When multiple impellers 5 rotate in the same direction, the airflow they generate is in the same direction, so as to facilitate the circulation of air on both the inner and outer sides of the guide rod 3.

[0048] In this embodiment: the transmission assembly is a planetary gear set, including a sun gear 71, planet gears 72, a planet carrier 73 and an internal gear ring 74. The sun gear 71 and the internal gear ring 74 are coaxial, and the planet gears 72 are disposed between the sun gear 71 and the internal gear ring 74, and mesh with the sun gear 71 and the internal gear ring 74 respectively. The planetary gear 72 is rotatably mounted on the planetary carrier 73, and the planetary carrier 73 is fixedly connected to the guide rod 3; One end of the sun gear 71 passes through the planet carrier 73 and is fixedly connected to the central shaft 6.

[0049] In this design, the planetary gear set has a compact structure, a large transmission ratio, and coaxial input and output, making it suitable for achieving speed increase within the limited space at the end of the guide rod 3. This allows the impeller 5 to achieve a rotational speed much higher than that of the guide rod 3, thereby generating a stronger internal airflow.

[0050] Among them, the planet carrier 73 is fixedly connected to the guide rod 3 as the input end of the planetary gear set, and the sun gear 71 is fixedly connected to the central shaft 6 as the output end of the planetary gear set. When the internal gear ring 74 is fixedly installed on the frame 1, when the guide rod 3 rotates, it can drive the central shaft 6 to rotate at a speed higher than that of the guide rod 3 through the planetary gear set.

[0051] For example, if the number of teeth of the sun gear 71 is set to 20, the number of teeth of the planet gear 72 is 20, the number of teeth of the internal gear ring 74 is 60, and the planet carrier 73 is input, then the output speed of the sun gear 71 is 4 times the speed of the guide rod 3.

[0052] In this embodiment: the planetary gear set is provided with a protective cover 8, one end of the protective cover 8 is open and has a hollow structure, and the internal gear ring 74 is embedded in the open end of the protective cover 8 and is fixedly connected. The end of the planetary carrier 73 facing away from the planetary gear 72 passes through the end wall of the closed end of the protective cover 8, and the middle part of the planetary carrier 73 is rotatably engaged with the end wall of the protective cover 8.

[0053] In this design, the planetary gear set is fully embedded inside the protective cover 8, with the opening of the protective cover 8 located at one end of the guide rod 3. By fixing the protective cover 8 to the frame 1, it serves to support the planetary gear set. Simultaneously, when the open end of the protective cover 8 is fixedly installed on the frame 1, the interior of the protective cover 8 is relatively sealed, preventing dust and lint from entering and reducing the risk of jamming and damage between components of the planetary gear set.

[0054] A heat dissipation method for a guide rod 3, comprising using the aforementioned weave tape 2 guide device, includes the following steps: S1. Drive the guide rod 3 to rotate: The webbing 2 is wrapped around the outer surface of the guide rod 3, and under the action of traction force, it drives the guide rod 3 to rotate on the frame 1; S2. Generating internal airflow: When the guide rod 3 rotates, it drives the impeller 5 to rotate at an increased speed through the speed transmission assembly, so that the impeller 5 generates an axial airflow inside the guide rod 3, which performs forced convection heat transfer on the inner wall of the guide rod 3. S3, External airflow generation: During the rotation of the guide rod 3, the sliding block 4 slides back and forth radially along the guide rod 3 in the air cavity 31 under the action of gravity, repeatedly changing the volume of the air cavity 31, driving the airflow to flow into or out of the guide rod 3 through the air cavity 31, forming turbulence on the outer surface of the guide rod 3. S4. Synergistic heat dissipation: The internal axial airflow and external turbulence work together to provide three-dimensional heat dissipation for the guide rod 3 and the webbing 2 on its surface.

[0055] In this scheme, the rotation of the internal impeller 5 obtains energy from the rotation of the guide rod 3 through the speed transmission assembly, while the movement of the external slider directly utilizes gravity. The entire process does not require an external power supply, air pump, or cooling medium circulation system, thus reducing equipment operating costs.

[0056] Two independent heat exchange channels, one internal and one external, were constructed. Internal channel: Axial airflow directly washes over the inner wall of guide rod 3, rapidly removing heat accumulated inside the rod body due to thermal radiation and conduction through forced convection. Because the metal guide rod 3 has a high thermal conductivity, cooling the inner wall directly reduces the temperature of the outer wall. External channel: The turbulence on the outer surface acts on the contact interface between the webbing 2 and the guide rod 3, directly interfering with the core area of ​​the heat source. The heat generated by the high-speed friction of the webbing 2 is carried away by the turbulence near the contact point, reducing the risk of heat conduction to the deeper layers of the webbing 2.

[0057] When the running speed of the webbing 2 increases (i.e., the rotational speed of the guide rod 3 increases), the two heat dissipation mechanisms are enhanced simultaneously. On the one hand, the speed-changing transmission assembly increases the rotational speed of the impeller 5 by a higher factor, thereby increasing the internal airflow; on the other hand, the reciprocating frequency of the slider is proportional to the rotational speed of the guide rod 3, and the frequency of the external pulsed airflow increases synchronously. This automatically matches the heat dissipation intensity with the heat generation intensity (frictional heat generation is positively correlated with rotational speed).

[0058] In this embodiment, the specific process of sliding block 4 driving airflow in step S3 includes: Negative pressure intake stage: When the sliding block 4 slides along the axis of the guide rod 3 under the action of gravity, the volume of the air chamber 31 located outside the sliding block 4 increases, forming a negative pressure, and the low temperature air outside the guide rod 3 is drawn into the air chamber 31 through the air hole 311; Compression and exhaust stage: When the sliding block 4 slides in the direction of the outer circular surface of the guide rod 3, the volume of the air chamber 31 located outside the sliding block 4 decreases, the internal air is compressed and ejected at high speed to the guide rod 3, blowing onto the outer surface of the guide rod 3 and the webbing 2. Cyclic repetition: As the guide rod 3 rotates continuously, the sliding block 4 reciprocates within the air chamber 31 under the action of gravity, causing the intake and exhaust processes to alternate, forming a pulsed airflow around the guide rod 3.

[0059] In this design, a localized high-speed jet is generated through the compressed air chamber 31. This localized high-speed jet can effectively penetrate the air gap boundary layer between the surfaces of the webbing 2 and the guide rod 3, directly impacting the heat exchange surface and causing the hot air to diffuse in all directions.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A webbing guide device, comprising a hollow guide rod (3) rotatably mounted on a frame (1), wherein both ends of the guide rod (3) are connected to the outside, characterized in that: The guide rod (3) has an air cavity (31) extending radially toward the guide rod (3) on its rod wall, and the air cavity (31) is connected to the inner and outer sides of the guide rod (3) respectively. A sliding block (4) is slidably fitted in the air cavity (31) along the radial direction of the guide rod (3). An impeller (5) is coaxially mounted inside the guide rod (3). A speed transmission assembly is provided between the impeller (5) and the guide rod (3). When the guide rod (3) rotates on the frame (1), it drives the impeller (5) to rotate through the speed transmission assembly. The rotation speed of the guide rod (3) is lower than that of the impeller (5).

2. The weave guide device according to claim 1, characterized in that: The guide rod (3) has an air hole (311) on its outer circular surface that connects to the air chamber (31). The diameter of the air hole (311) is smaller than the inner diameter of the air chamber (31).

3. The weave guide device according to claim 1, characterized in that: An inner tube (32) is coaxially fixed inside the guide rod (3), and the outer wall of the inner tube (32) is in contact with the inner wall of the guide rod (3). A through hole (321) is provided on the outer wall of the inner tube (32) at the corresponding position of the air cavity (31), and the diameter of the through hole (321) is smaller than the inner diameter of the air cavity (31).

4. The weave guide device according to claim 3, characterized in that: The sliding block (4) is in the shape of a stepped shaft. The end of the sliding block (4) with a larger diameter slides into the air cavity (31), while the end with a smaller diameter extends into the inner tube (32) through the through hole (321).

5. The weave guide device according to claim 3, characterized in that: One end of the guide rod (3) is open, and one end of the inner tube (32) is inserted into the opening at that end of the guide rod (3) and is fixedly connected by a detachable method.

6. The weave guide device according to claim 1, characterized in that: The guide rod (3) has a central shaft (6) coaxial with the guide rod (3) inside. Multiple impellers (5) are fixedly installed on the central shaft (6) and the multiple impellers (5) are arranged at equal intervals along the axial direction of the central shaft (6).

7. The weave guide device according to claim 6, characterized in that: The transmission assembly is a planetary gear set, including a sun gear (71), planet gears (72), a planet carrier (73), and an internal gear ring (74). The sun gear (71) and the internal gear ring (74) are coaxial. The planet gear (72) is located between the sun gear (71) and the internal gear ring (74) and meshes with the sun gear (71) and the internal gear ring (74) respectively. The planetary gear (72) is rotatably mounted on the planet carrier (73), and the planet carrier (73) is fixedly connected to the guide rod (3); One end of the sun gear (71) passes through the planet carrier (73) and is fixedly connected to the central shaft (6).

8. The weave guide device according to claim 7, characterized in that: The planetary gear set is covered with a protective cover (8). One end of the protective cover (8) is open and has a hollow structure. The internal gear ring (74) is embedded in the open end of the protective cover (8) and is fixedly connected. The end of the planetary carrier (73) facing away from the planetary gear (72) passes through the end wall of the closed end of the protective cover (8), and the middle part of the planetary carrier (73) is rotatably engaged with the end wall of the protective cover (8).

9. A method for heat dissipation of a guide rod, comprising using the weave tape guide device according to any one of claims 1-8, characterized in that: Includes the following steps: S1. Drive the guide rod (3) to rotate: The webbing (2) is wrapped around the outer surface of the guide rod (3) and drives the guide rod (3) to rotate on the frame (1) under the action of traction force; S2. Generating internal airflow: When the guide rod (3) rotates, the impeller (5) is driven to rotate at an increased speed through the speed transmission assembly, so that the impeller (5) generates an axial airflow inside the guide rod (3) to perform forced convection heat transfer on the inner wall of the guide rod (3); S3, External airflow generation: During the rotation of the guide rod (3), the sliding block (4) slides back and forth along the radial direction of the guide rod (3) in the air cavity (31) under the action of gravity, repeatedly changing the volume of the air cavity (31), driving the airflow to flow into or out of the guide rod (3) through the air cavity (31), forming turbulence on the outer surface of the guide rod (3); S4. Synergistic heat dissipation: The internal axial airflow and external turbulence work together to dissipate heat in three dimensions on the guide rod (3) and the webbing (2) on its surface.

10. The heat dissipation method for the guide rod according to claim 9, characterized in that: The specific process of the sliding block (4) driving the airflow in step S3 includes: Negative pressure intake stage: When the sliding block (4) slides along the axis of the guide rod (3) under the action of gravity, the volume of the air chamber (31) located outside the sliding block (4) increases, forming a negative pressure, and the low temperature air outside the guide rod (3) is drawn into the air chamber (31) through the air hole (311). Compression and exhaust stage: When the sliding block (4) slides in the direction of the outer circle of the guide rod (3), the volume of the air chamber (31) located outside the sliding block (4) decreases, the internal air is compressed and ejected at high speed to the outside of the guide rod (3), blowing to the outer surface of the guide rod (3) and the webbing (2). Cyclic repetition: As the guide rod (3) rotates continuously, the sliding block (4) moves back and forth in the air chamber (31) under the action of gravity, so that the inhalation and exhaust processes alternate, forming a pulse airflow around the guide rod (3).

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