Guide wheel dustproof piece and guide wheel assembly of carbon fiber take-up machine
By designing dust-proof grooved guide wheel dust-proof parts on the guide wheel of the carbon fiber wire collector, the problem of wool and impurities entering the bearing is solved, and better bearing and guide wheel working effect and carbon fiber tow quality are achieved.
Patent Information
- Application Number
- CN202420284021.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-06
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-02-06
AI Technical Summary
Due to the arc-shaped working surface and anti-stick processing of existing carbon fiber wire collectors, the guide wheels of the existing carbon fiber wire collectors are easily thrown out and entered the bearing, affecting the rotational friction effect of the bearing, causing the guide wheel to rotate. Flexible, the tension of carbon fiber tow increases, and the quality of the finished product becomes worse.
A guide wheel dustproof member for a carbon fiber wire collector is designed, including a port is provided in the center of the guide wheel dustproof member, and a connecting part and a barrier part are provided on one side surface to form a dustproof groove. The dustproof member rotates with the rotation shaft, which can block and collect or throw away wool and impurities, preventing it from contacting the central bearing on the side surface of the guide wheel.
Effectively avoiding the threads and impurities of the carbon fiber tows touch the central bearing on the side surface of the guide wheel, ensuring the working effect of the bearings and guide wheels, thereby improving the quality of the carbon fiber tows and the finished product quality of the carbon fiber wire collector, and reducing labor Cleaning requirements.
Smart Images
Figure CN222433787U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of carbon fiber collecting machines, and specifically relates to a guide wheel dustproof part and a guide wheel assembly of the carbon fiber collecting machine. Background Art
[0002] The existing guide wheels of carbon fiber collecting machines, such as the collecting machine tension wheel, collecting machine guide wheel and collecting machine wide guide wheel, have an arc-shaped working surface in contact with the carbon fiber tow due to the needs of the carbon fiber collecting process, and most of the working surfaces are processed for anti-sticking, which causes the fiber hair and impurities in the carbon fiber tow to be easily thrown out of the carbon fiber tow on the arc-shaped surface, and after moving to its edge along the arc-shaped surface, the rotating shaft and bearing at the center of the guide wheel side surface move due to inertia, causing fiber hair and impurities to enter the bearing, affecting the effect of reducing the rotational friction of the bearing, and even causing the bearing to lock, which in turn causes the guide wheel to rotate less flexibly, the tension on the carbon fiber tow to increase, the quality of the finished product of the carbon fiber collecting machine to deteriorate, and the price of the finished product to decrease.
[0003] Therefore, the existing carbon fiber collecting machine requires manual cleaning of the fiber hair and impurities on the side surface of the guide wheel, which is time-consuming and labor-intensive.
[0004] In view of this, the present utility model is proposed. Utility Model Content
[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a guide wheel dustproof part and a guide wheel assembly for a carbon fiber wire collecting machine, which can prevent the hair and impurities of the carbon fiber bundle from contacting the bearing in the center of the side surface of the guide wheel during the wire collecting process, thereby ensuring the working effect of the bearing and the guide wheel, and further ensuring the quality of the carbon fiber bundle and the quality of the finished product of the carbon fiber wire collecting machine.
[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:
[0007] The utility model provides a guide wheel dustproof part of a carbon fiber wire collecting machine, comprising:
[0008] A through opening is provided at the center of the guide wheel dustproof member;
[0009] A connecting portion is provided on one side surface of the guide wheel dustproof member, and a first blocking portion and a second blocking portion extending to the same side thereof are provided on the connecting portion;
[0010] The surfaces where the first blocking portion, the connecting portion and the second blocking portion are connected form a dustproof groove.
[0011] The utility model uses a guide wheel dustproof part that rotates with the rotating shaft, so that the hair and impurities of the carbon fiber bundle are thrown out on the guide wheel, and after moving to the edge of the guide wheel, they are blocked by the dustproof groove of the guide wheel dustproof part and are collected or thrown out by the dustproof groove, thereby preventing the hair and impurities of the carbon fiber bundle from contacting the bearing at the center of the side surface of the guide wheel, ensuring the working effects of the bearing and the guide wheel, and further ensuring the quality of the carbon fiber bundle and the quality of the finished product of the carbon fiber collecting machine.
[0012] A further solution of the present invention is that the second blocking portion is arranged perpendicular to the connecting portion.
[0013] In the above scheme, it is easier to collect the hair and impurities on the guide wheel dustproof piece at the position where the second blocking part is perpendicular to the connecting part, and to throw the hair and impurities out of the guide wheel dustproof piece along the surface of the second blocking part perpendicular to the connecting part.
[0014] A further solution of the utility model is that the second blocking portion and the connecting portion are connected via an arc-shaped transition structure.
[0015] In the above scheme, it is easier to make the hair and impurities be thrown out of the guide wheel dustproof piece along the surface of the second blocking part perpendicular to the connecting part, without causing excessive hair and impurities to be collected on the dustproof groove.
[0016] A further solution of the utility model is: the wall thickness of the second blocking portion is smaller than the wall thickness of the connecting portion;
[0017] The radius of the outer arc surface of the arc-shaped transition structure is greater than the radius of the inner arc surface thereof, so that the outer wall of the second blocking portion shrinks to the outer wall of the connecting portion.
[0018] In the above scheme, the outer surface of the guide wheel dustproof part is made smoother, which facilitates the installation of the guide wheel dustproof part and allows a small amount of hair and impurities contacted by the arc-shaped transition structure to be thrown outward.
[0019] A further solution of the utility model is that the through opening has a first clamping section and a second clamping section with different inner diameters along the axial direction, and the diameter of the first clamping section is smaller than the diameter of the second clamping section.
[0020] In the above solution, it is achieved that the through-port can be fixed on the rotating shaft more stably, for example, the through-port is clamped with a bolt, and the bolt is fixed on the rotating shaft.
[0021] A further solution of the utility model is that the first blocking portion is connected to the connecting portion via an arc-shaped transition structure, and the overall axial length of the first blocking portion and the arc-shaped transition structure connected thereto is equal to the axial length of the first clamping section.
[0022] In the above solution, the arc-shaped transition structure between the first blocking portion and the connecting portion does not cause accumulation of hair and impurities.
[0023] The utility model also provides a guide wheel assembly of a carbon fiber wire collecting machine, including a rotating shaft, a guide wheel mounted on the rotating shaft, and the guide wheel dustproof member, wherein the guide wheel dustproof member is fixed to the rotating shaft through the through opening.
[0024] A further solution of the utility model is that the radial dimension of the guide wheel dustproof part is smaller than the radial dimension of the guide wheel.
[0025] In the above scheme, it is ensured that the hair and impurities thrown off the guide wheel can fall on the guide wheel dustproof part, thereby achieving the guide wheel dustproof part to better prevent the hair and impurities from contacting the bearing.
[0026] A further solution of the utility model is that the guide wheel dustproof part is an aluminum product and is arranged at a distance from the guide wheel along the axial direction of the rotating shaft.
[0027] In the above scheme, the guide wheel dustproof part is light in weight, which will not cause the shaft to bend due to force, thereby reducing the wear of the shaft.
[0028] A further solution of the utility model is: the outer peripheral surface of the guide wheel is a working surface for guiding the carbon fiber tow, and the center of the side surface of the guide wheel is a clamping portion of the clamping bearing;
[0029] The distance from the edge of the second blocking portion of the guide wheel dustproof member to the clamping portion is not greater than the distance from the working surface of the guide wheel to its clamping portion.
[0030] In the above scheme, it is ensured that the bearing at the center of the guide wheel is better prevented from contacting with silk wool and impurities.
[0031] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art.
[0032] By using the guide wheel dustproof part that can be fixed on the rotating shaft, the hair and impurities of the carbon fiber tow can be thrown out on the guide wheel, and after moving to the edge of the guide wheel, they are blocked by the dustproof groove of the guide wheel dustproof part, and are collected and thrown out by the dustproof groove, thereby preventing the hair and impurities of the carbon fiber tow from contacting the bearing in the center of the side surface of the guide wheel, ensuring the working effect of the bearing and the guide wheel, and further ensuring the quality of the carbon fiber tow and the quality of the finished product of the carbon fiber collecting machine.
[0033] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0034] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work. In the accompanying drawings:
[0035] Figure 1 It is a side view structural schematic diagram of the guide wheel dustproof part of the utility model;
[0036] Figure 2 It is a front view structural schematic diagram of the guide wheel dustproof part of the utility model;
[0037] Figure 3 It is a side view structural schematic diagram of the first guide wheel in the embodiment of the utility model;
[0038] Figure 4 is a side structural schematic diagram of the second guide wheel in the embodiment of the utility model;
[0039] Figure 5 It is a side structural schematic diagram of the third guide wheel in the embodiment of the utility model.
[0040] In the figure: 1. guide wheel dustproof part; 11. opening; 111. first clamping section; 112. second clamping section; 12. dustproof groove; 121. connecting part; 122. second blocking part; 123. first blocking part; 2. guide wheel; 21. working surface; 22. clamping part; 3. bearing; 4. rotating shaft; 5. bolt.
[0041] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION
[0042] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.
[0043] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.
[0044] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0045] like Figures 1 to 5 As shown, the utility model provides a guide wheel dust guard 1 and a guide wheel assembly of a carbon fiber collecting machine. The guide wheel dust guard 1 rotates with the rotating shaft 4, so that the hair and impurities of the carbon fiber bundle can be thrown out on the guide wheel 2, and after moving to the edge of the guide wheel 2, they are blocked by the dustproof groove 12 of the guide wheel dust guard 1 and collected or thrown out by the dustproof groove 12, thereby preventing the hair and impurities of the carbon fiber bundle from contacting the bearing 3 at the center of the side surface of the guide wheel 2, ensuring the working effect of the bearing 3 and the guide wheel 2, and further ensuring the quality of the carbon fiber bundle and the finished product quality of the carbon fiber collecting machine.
[0046] Embodiment 1
[0047] like Figure 1 and 2 As shown, this embodiment provides a guide wheel dust guard 1 of a carbon fiber collecting machine, wherein a through opening 11 is arranged at the center of the guide wheel dust guard 1; a connecting portion 121 is arranged on one side surface of the guide wheel dust guard 1, and a first blocking portion 123 and a second blocking portion 122 extending to the same side thereof are arranged on the connecting portion 121; a dustproof groove 12 is formed on the surface where the first blocking portion 123, the connecting portion 121 and the second blocking portion 122 are connected.
[0048] The through opening 11 can be directly clamped to the rotating shaft 4, or can be clamped to the rotating shaft 4 through a clamping member, such as a bolt 5, or can be fixedly connected to the internal thread on the rotating shaft 4 by providing an external thread in the through opening 11.
[0049] Therefore, the hair and impurities of the carbon fiber tow can be thrown out on the guide wheel 2 through the guide wheel dustproof part 1 that rotates with the rotating shaft 4, and after moving to the edge of the guide wheel 2, they are blocked by the dustproof groove 12 of the guide wheel dustproof part 1 and collected or thrown out by the dustproof groove 12, thereby preventing the hair and impurities of the carbon fiber tow from contacting the bearing 3 at the center of the side surface of the guide wheel 2, ensuring the working effect of the bearing 3 and the guide wheel 2, and further ensuring the quality of the carbon fiber tow and the finished product quality of the carbon fiber collecting machine.
[0050] In this embodiment, the second blocking portion 122 is arranged perpendicular to the connecting portion 121. It is easier to collect the hair and impurities on the guide wheel dustproof member 1 at the position where the second blocking portion 122 is perpendicular to the connecting portion 121, and to throw the hair and impurities out of the guide wheel dustproof member 1 along the surface of the second blocking portion 122 perpendicular to the connecting portion 121.
[0051] In this embodiment, the second blocking portion 122 and the connecting portion 121 are connected by an arc-shaped transition structure, which makes it easier for the hair and impurities to be thrown out of the guide wheel dustproof member 1 along the surface of the second blocking portion 122 perpendicular to the connecting portion 121, without causing excessive hair and impurities to be collected on the dustproof groove 12.
[0052] In this embodiment, the wall thickness of the second blocking portion 122 is smaller than the wall thickness of the connecting portion 121; the radius of the outer arc surface of the arc-shaped transition structure is larger than the radius of its inner arc surface, so that the outer wall of the second blocking portion 122 is contracted to the outer wall of the connecting portion 121. This makes the outer surface of the guide wheel dustproof member 1 smoother, facilitates the installation of the guide wheel dustproof member 1, and allows a small amount of hair and impurities contacted by the arc-shaped transition structure to be thrown outward.
[0053] In this embodiment, the through opening 11 has a first clamping section 111 and a second clamping section 112 with different inner diameters along the axial direction, and the diameter of the first clamping section 111 is smaller than the diameter of the second clamping section 112. This enables the through opening 11 to be more stably fixed to the rotating shaft 4, for example, the through opening 11 is clamped to the bolt 5, and the bolt 5 is fixed to the rotating shaft 4.
[0054] In this embodiment, the first blocking portion 123 is connected to the connecting portion 121 via an arc-shaped transition structure, and the overall axial length of the first blocking portion 123 and the arc-shaped transition structure connected thereto is equal to the axial length of the first clamping section 111. The arc-shaped transition structure between the first blocking portion 123 and the connecting portion 121 does not cause accumulation of hair and impurities.
[0055] Furthermore, the specific structure of the guide wheel dustproof member 1 in this embodiment is as follows: Figure 1 and 2As shown, the connecting portion 121 is a ring-shaped plate arranged parallel to the opening of the through-portion 11 and surrounding the through-portion 11. The surface of the connecting portion 121 is flush with the opening of the second clamping section 112 of the through-portion 11. The connecting portion of the second clamping section 112 and the first clamping section 111 forms a stepped structure with a right-angle bend, so that the bolt 5 can be clamped in the first clamping section 111 and the second clamping section 112.
[0056] The guide wheel dustproof part 1 is a centrally symmetrical structure. As a specific application, the guide wheel dustproof part 1 in this embodiment can be directly set on the guide wheel assembly, and the end of the rotating shaft 4 of the guide wheel assembly is fixed with a bolt 5, so that the guide wheel dustproof part 1 can be directly clamped on the bolt 5, reducing the modification of the guide wheel assembly.
[0057] As a specific application of this embodiment, a specific structural dimension of the guide wheel dustproof member 1 is as follows: Figure 1 and 2 As shown in the figure, the units of dimension markings are all millimeters, wherein R represents the radius value of the arc surface, φ represents the diameter of the opening or circular surface, and the commas in the dimension markings are all decimal points. It should be noted that: the axial length of the opening of the second clamping section 112, that is, the depth of the opening is set to 8.93 mm, so that the interior can better clamp M6 bolts 5 of various specifications, that is, bolts 5 with a diameter of 6 mm, so that the M6 bolts 5 can be less exposed or not exposed from the second clamping section 112, further preventing the bolts 5 from contacting silk wool and impurities; the material of the dust cap of the guide wheel 2 is preferably aluminum or aluminum alloy, so that the weight of the guide wheel dust cover 1 is lighter, and will not cause the shaft 4 to bend under force, affect the tension of the carbon fiber tow, and reduce the quality of the finished carbon fiber tow.
[0058] In the actual production of a carbon fiber collecting machine using the guide wheel dustproof part 1 described in this embodiment, no situations were found in which the guide wheel 2 was entangled with hair, the bearing 3 was entangled with hair, impurities entered the bearing 3, or the guide wheel 2 was worn or damaged. This greatly reduces the operation of manually cleaning the guide wheel 2 at regular intervals.
[0059] Embodiment 2
[0060] like Figures 1 to 5 As shown, this embodiment provides a guide wheel assembly of a carbon fiber wire collecting machine, including the guide wheel dustproof member 1 as described in the first embodiment, and also includes a rotating shaft 4, and a guide wheel 2 mounted on the rotating shaft 4. The guide wheel dustproof member 1 is fixed to the rotating shaft 4 through the through opening 11.
[0061] In this embodiment, the radial dimension of the guide wheel dustproof member 1 is smaller than the radial dimension of the guide wheel 2. This ensures that the hair and impurities thrown off the guide wheel 2 can fall on the guide wheel dustproof member 1, thereby achieving that the guide wheel dustproof member 1 better prevents the hair and impurities from contacting the bearing 3 at the center of the guide wheel 2.
[0062] In this embodiment, the guide wheel dustproof member 1 is made of aluminum and is spaced apart from the guide wheel 2 along the axial direction of the rotating shaft, so that the guide wheel dustproof member 1 is light in weight, does not cause the rotating shaft 4 to be bent by force, and reduces the wear of the rotating shaft 4.
[0063] In this embodiment: the working surface 21 of the guide wheel 2 is used to guide the carbon fiber bundle; in the axial direction of the guide wheel 2, the edge of the second blocking portion 122 of the guide wheel dustproof member 1 is not higher than the edge of the working surface 21 of the guide wheel 2. Further, the outer peripheral surface of the guide wheel 2 is the working surface 21 for guiding the carbon fiber bundle, and the center of the side surface of the guide wheel 2 is the clamping portion 22 for clamping the bearing 3; the distance from the edge of the second blocking portion 122 of the guide wheel dustproof member to the clamping portion 22 is not greater than the distance from the working surface 21 of the guide wheel 2 to its clamping portion 22. It is ensured that the guide wheel dustproof member 1 better blocks the wool and impurities from contacting the bearing 3 in the center of the guide wheel 2.
[0064] As a specific application of this embodiment, the carbon fiber tow passes through the guide wheel 2 obliquely, and the inlet direction of the carbon fiber tow is preferably inclined upward at an angle of 45 degrees to the horizontal plane. After the carbon fiber tow passes through the semicircular arc of the working surface 21 of the guide wheel 2, its outlet direction is preferably inclined downward parallel to the inlet direction. Therefore, the carbon fiber tow can complete the turning along the surface of the working surface 21.
[0065] As some specific applications of this embodiment, the guide wheel 2 can be Figure 3 , Figure 4 and Figure 5 In any one of the above, a clamping portion 22 for clamping the bearing 3 is provided at the center. Figure 5 The units of the structural dimensions of the guide wheel 2 shown in the figure are all millimeters, where R represents the radius of the arc surface, φ represents the diameter of the opening or circular surface, and the commas in the dimension markings are all decimal points. The figure also indicates information such as machining tolerance and surface roughness. It should be noted that: Figure 3 , Figure 4 and Figure 5 The guide wheel 2 shown in the figure is preferably made of aluminum or aluminum alloy, and the surface of the working surface 21 is preferably subjected to ceramic plating or ceramic spraying. Figure 3 and 4 The working surface of the guide wheel 2 shown is preferably processed by spraying ceramics, wherein the spraying ceramics processing is to process a ceramic coating with a thickness of 0.12 mm to 0.14 mm after spraying ceramics. In addition, as Figure 3 and 4 The sharp angles of the guide wheel 2 shown are preferably blunted to reduce burrs on the guide wheel 2. Figure 5The working surface of the guide wheel 2 shown is preferably ceramic-plated, and the thickness of the ceramic plating is 0.12 mm to 0.15 mm on one side. There are no pinholes and bubbles after the ceramic plating, and the surface finish can be polished to 0.08 after the ceramic plating. Therefore, Figure 3 , Figure 4 and Figure 5 The working surface of the guide wheel 2 shown in the figure is more resistant to the sticking of the carbon fiber bundle, has almost no burrs, has a higher surface finish, is free of hair, and makes it easier for the hair and impurities of the carbon fiber bundle to move along the working surface to its edge.
[0066] After the hair and impurities move to the edge of the guide wheel 2 along the working surface, the guide wheel 2 described in the present embodiment contacts the inner surface of the guide wheel dust guard 1 when moving toward the center of the guide wheel 2 due to inertia. Since the guide wheel dust guard 1 rotates with the rotating shaft 4, the hair and impurities are subjected to centrifugal force and move along the first clamping section 111 and the connecting portion 121 of the guide wheel dust guard 1, and then are collected on the arc-shaped transition structure at the connection between the connecting portion 121 and the second blocking portion 122, or are thrown out along the second blocking portion 122, thereby preventing the hair and impurities of the carbon fiber bundle from contacting the bearing 3 at the center of the side surface of the guide wheel 2, thereby ensuring the working effect of the bearing 3 and the guide wheel 2, and further ensuring the quality of the carbon fiber bundle and the finished product quality of the carbon fiber collecting machine.
[0067] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent can make some changes or modify the technical content suggested above into an equivalent embodiment with equivalent changes without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of the solution of the utility model.
Claims
1. A guide wheel dustproof part for a carbon fiber wire collecting machine, characterized in that : A through opening (11) is provided at the center of the guide wheel dustproof member; A connecting portion (121) is provided on one side surface of the guide wheel dustproof member, and a first blocking portion (123) and a second blocking portion (122) extending toward the same side of the connecting portion (121) are provided on the connecting portion (121); The surfaces where the first blocking portion (123), the connecting portion (121) and the second blocking portion (122) are connected form a dustproof groove (12).
2. The guide wheel dustproof part of the carbon fiber wire collecting machine according to claim 1 is characterized in that The second blocking portion (122) is arranged perpendicular to the connecting portion (121).
3. The guide wheel dustproof part of the carbon fiber wire collecting machine according to claim 1, characterized in that The second blocking portion (122) and the connecting portion (121) are connected at their outer peripheries via an arc-shaped transition structure.
4. The guide wheel dustproof part of the carbon fiber wire collecting machine according to claim 3 is characterized in that : the wall thickness of the second blocking portion (122) is smaller than the wall thickness of the connecting portion (121); The radius of the outer arc surface of the arc-shaped transition structure is greater than the radius of the inner arc surface thereof, so that the outer wall of the second blocking portion (122) shrinks to the outer wall of the connecting portion (121).
5. A guide wheel dustproof member for a carbon fiber wire collecting machine according to any one of claims 1 to 4, characterized in that : The through opening (11) has a first clamping section (111) and a second clamping section (112) having different inner diameters along the axial direction, and the caliber of the first clamping section (111) is smaller than the caliber of the second clamping section (112).
6. The guide wheel dustproof part of the carbon fiber wire collecting machine according to claim 5, characterized in that : The first blocking portion (123) is connected to the connecting portion (121) via an arc-shaped transition structure, and the overall axial length of the first blocking portion (123) and the arc-shaped transition structure connected thereto is equal to the axial length of the first clamping section (111).
7. A guide wheel assembly for a carbon fiber wire collecting machine, characterized in that: It comprises a rotating shaft (4), a guide wheel (2) mounted on the rotating shaft (4), and a guide wheel dustproof member according to any one of claims 1 to 6, wherein the guide wheel dustproof member is fixed to the rotating shaft (4) through the through opening (11).
8. The guide wheel assembly of a carbon fiber wire collecting machine according to claim 7, characterized in that : The radial dimension of the guide wheel dustproof part is smaller than the radial dimension of the guide wheel (2).
9. The guide wheel assembly of a carbon fiber wire collecting machine according to claim 7, characterized in that The guide wheel dustproof part is made of aluminum and is arranged along the axial direction of the rotating shaft (4) and at intervals from the guide wheel (2).
10. A guide wheel assembly for a carbon fiber wire collecting machine according to any one of claims 7 to 9, characterized in that : The outer peripheral surface of the guide wheel (2) is a working surface (21) for guiding the carbon fiber bundle, and the center of the side surface of the guide wheel (2) is a clamping portion (22) for clamping the bearing (3); The distance from the edge of the second blocking portion (122) of the guide wheel dustproof member to the clamping portion (22) is no greater than the distance from the working surface (21) of the guide wheel (2) to the clamping portion (22).