Fly blowing device for preventing carbon curtain of lapping machine from deviating

By using a high-pressure air pipe device composed of straight pipe, bent pipe, sealing head and sealing tail assembly in the net laying machine, the problems of unstable installation of high-pressure air pipes and difficult to control the blowing direction are solved, and a more efficient flying flower removal effect and a more flexible installation method are achieved.

CN222559373UActive Publication Date: 2025-03-04ANQING HUAWEI IND FABRICS HI TECH CO LTD
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Patent Information

Application Number
CN202421244453.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-31
Publication Date
2025-03-04
Estimated Expiration
2034-05-31

AI Technical Summary

Technical Problem

In the prior art, the high-pressure air pipe is not easy to be fixed during the wiring process, which makes it difficult to control the blowing direction. Especially when multiple high-pressure air pipes are installed, blowing interference is easily caused, affecting the removal effect of flying flowers.

Method used

The device consisting of multiple straight pipes, bent pipes, sealing heads and sealing tails is used to achieve flexible installation and precise control of high-pressure air pipes through the design of magnetic suction rings and flexible inner lined pipes to avoid blowing interference.

Benefits of technology

It realizes flexible and flexible installation of high-pressure air pipes, accurately controls the blowing direction, avoids interference, improves the effect of flying flowers, and reduces production costs and workload.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a fly blowing device for preventing deviation of a lapping machine carbon curtain, which comprises a high-pressure air pipe, a straight pipe, a bent pipe, a plugging head and a plugging tail, the two adjacent straight pipes and the two adjacent bent pipes are attracted and spliced through the magnetic attraction rings respectively; the plugging head and the plugging tail are of a 180-degree inverted mirror image structure, each of the plugging head and the plugging tail comprises an inner taper pipe and an outer taper pipe, the inner taper pipe is sleeved on the outer taper pipe in a thread adjustable manner, teeth are annularly arranged on the inner wall of a pipe orifice of the outer taper pipe, and the high-pressure air pipe penetrates in from the plugging tail, sequentially penetrates through the straight pipes or the bent pipes, penetrates out from the plugging head and is clamped and matched with the teeth. Under the limiting effect of the pipe body, the problem that the high-pressure air pipes are not easy to shape and fix can be solved, installation is more flexible and flexible, the multiple high-pressure air pipes can avoid one another, the air blowing direction of the high-pressure air pipes can be accurately controlled, air blowing interference among the high-pressure air pipes is avoided, and the service life of the high-pressure air pipes is prolonged. And the effect of removing flyings sheltered on the photoelectric induction control equipment is better.
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Description

Technical Field

[0001] The utility model relates to the technical field of web laying machines, in particular to a flower-blowing device for preventing a carbon curtain of a web laying machine from running off track. Background Art

[0002] The operation of the carbon curtain of the web laying machine is controlled by photoelectric sensing. In the production process, due to the generation and dispersion of flying flowers of the web laying machine, the photoelectric sensing control equipment is often covered and blocked by flying flowers, resulting in reduced sensitivity and frequent deviation of the carbon curtain. The deviation of the carbon curtain will cause the problem of machine breakdown and shutdown, resulting in re-spinning, increasing the re-spinning cloth, reducing the completion rate and increasing the production cost. On the other hand, it will bring inconvenience to the operators and maintenance personnel, resulting in increased workload and labor intensity.

[0003] In the prior art, in order to prevent the photoelectric sensing control device from being blocked by flying flowers, a high-pressure air pipe controlled by a solenoid valve is generally installed, and the high-pressure air pipe is pointed at the photoelectric sensing control device, and high-pressure air is used to blow off the flying flowers hanging on the photoelectric sensing control device. However, in actual applications, since the high-pressure air pipe is thin and has flexible deformation ability, it is not easy to shape and fix it during the wiring process, and it is difficult to make it blow in a specified direction. Especially when multiple high-pressure air pipes need to be installed, if the installation position of each high-pressure air pipe is not clearly restricted, it will cause the blowing interference between the multiple high-pressure air pipes, causing the blowing direction to deviate, which is not conducive to the removal of flying flowers. Utility Model Content

[0004] The utility model provides a blowing device for preventing carbon curtains of a web laying machine from running off the track, which is flexible and easy to install and can effectively limit the blowing direction of a high-pressure air pipe, and can at least solve one of the above technical problems.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a blowing device for preventing the carbon curtain of a web laying machine from running off the track comprises a high-pressure air pipe, a straight pipe, a curved pipe, a plugging head and a plugging tail;

[0006] The straight tube is in an I-shaped straight tube shape, and the curved tube is in an L-shaped curved tube shape. There are multiple straight tubes and curved tubes, and magnetic rings are fixed at both ends of the tube heads. Two adjacent straight tubes, two adjacent curved tubes, or two adjacent straight tubes and the curved tube are respectively assembled by adsorption via the magnetic rings.

[0007] The plugging head and the plugging tail are mirror images inverted at 180° to each other, and both include an inner conical tube and an outer conical tube. The inner conical tube is threadably mounted on the outer conical tube. The inner conical tube is assembled with the straight tube or the curved tube by the magnetic ring fixed by the tube head. The inner wall of the tube mouth of the outer conical tube is provided with teeth. The high-pressure air pipe is inserted through the plugging tail, passes through multiple straight tubes or curved tubes in turn, and exits from the plugging head to be snap-fitted with the teeth.

[0008] Furthermore, the inner and outer diameters of the magnetic ring are consistent with the inner and outer diameters of the pipe opening of the straight pipe, the curved pipe or the inner tapered pipe.

[0009] Furthermore, it also includes a flexible inner lining tube, which is fitted and fixed on the inner wall of the magnetic ring and extends to the inner wall of the straight tube, the curved tube or the inner cone tube. The outer diameter of the flexible inner lining tube is consistent with the inner diameter of the magnetic ring, the straight tube, the curved tube or the inner cone tube, and the flexible inner lining tube is made of rubber material with a large friction coefficient.

[0010] Furthermore, the inner and outer diameters of the expanded end of the inner conical tube are consistent with the inner and outer diameters of the straight tube, the curved tube or the magnetic ring, and the magnetic ring is fixed to the expanded end of the inner conical tube.

[0011] Furthermore, an external thread strip is distributed on the outer wall of the narrow end of the inner cone tube, and an internal thread strip is distributed on the inner wall of the expanded end of the outer cone tube. The expanded end of the outer cone tube is sleeved on the narrow end of the inner cone tube, and the external thread strip is thread-matched with the internal thread strip.

[0012] Furthermore, the teeth are fixed on the inner wall of the narrow end of the outer cone tube, and there are a plurality of teeth which are spaced and distributed in a ring, and can tighten or loosen the high-pressure air pipe as the outer cone tube is screwed or loosened onto the inner cone tube.

[0013] Furthermore, the plugging head also includes a dense mesh cover head, which is installed at the pipe opening of the narrow end of the outer cone tube. The high-pressure air pipe extends outward from the outer cone tube of the plugging head and is placed in the dense mesh cover head. The dense mesh cover head is made of stainless steel metal.

[0014] Furthermore, it also includes a snap-fit ​​piece, and there are multiple snap-fit ​​pieces, which are respectively engaged with the straight pipe or the curved pipe and can be pasted and fixed to the net laying machine equipment.

[0015] Furthermore, the fastener includes a clamping ring, a spring tongue and a fixing foot that are integrally connected, the inner diameter of the clamping ring is consistent with the outer diameter of the straight pipe or the curved pipe, and the clamping ring is provided with an opening, the spring tongue has two, which are symmetrically distributed at both ends of the opening and have elastic deformation ability, the fixing foot has two, which are symmetrically distributed on both sides of the clamping ring and are located outside the spring tongue, and the fixing foot is provided with an adhesive layer.

[0016] Furthermore, a gap is left between the two spring tongues, the inner wall of the spring tongue can be fitted to the outer wall of the straight tube or the curved tube, and the tangent of the straight tube or the curved tube is a, the tangent of the fixed foot is b, and a gap is left between the tangent a and the tangent b.

[0017] The beneficial effects of the utility model are embodied in:

[0018] 1. In the utility model, the high-pressure air pipe leading to the net laying machine is arranged inside the device and installed on the net laying machine through the device. Since the device is composed of a plurality of straight pipes and curved pipes and a plugging head and a plugging tail, the specific assembly length and assembly shape can be adjusted by itself. Therefore, under the restriction of the pipe body, not only the problem that the high-pressure air pipe is not easy to be fixed can be solved, the installation is more flexible and adaptable, and multiple high-pressure air pipes can be avoided from each other, and the blowing direction of the high-pressure air pipe can be accurately controlled to avoid the interference of the blowing between the high-pressure air pipes, so that the blowing is more concentrated, and the effect of removing the flying flowers blocking the photoelectric sensing control device is better.

[0019] 2. In the utility model, the straight pipes, curved pipes, plugging heads and plugging tails assembled to form the device have simple structures, are easy to mass-produce, have low manufacturing costs and are highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0021] Figure 1 It is an assembly diagram formed by arbitrarily assembling a plurality of straight pipes, a plurality of curved pipes, a plugging head and a plugging tail of an embodiment of the utility model.

[0022] Figure 2 It is a straight tube axonometric diagram of an embodiment of the utility model.

[0023] Figure 3 It is a cross-sectional view of a straight tube of an embodiment of the utility model.

[0024] Figure 4 It is an axonometric view of a bent pipe according to an embodiment of the utility model.

[0025] Figure 5 It is a cross-sectional view of a curved pipe according to an embodiment of the utility model.

[0026] Figure 6 It is a front view of the plugging head of the embodiment of the utility model.

[0027] Figure 7 It is a cross-sectional view of a plugging head according to an embodiment of the utility model.

[0028] Figure 8 It is a front view of the plugging tail of an embodiment of the utility model.

[0029] Fig. 9 It is a cross-sectional view of the plugging tail of an embodiment of the utility model.

[0030] Fig.10 It is a schematic diagram of the clamping connection between the clamping piece and the straight pipe or the curved pipe in the embodiment of the utility model.

[0031] The components in the accompanying drawings are marked as follows: 1. high-pressure air pipe; 2. straight pipe; 3. bent pipe; 4. plugging head; 5. plugging tail; 6. fastener; 601. clamping ring; 602. opening; 603. spring tongue; 604. fixing foot; 605. adhesive layer; 7. magnetic ring; 8. flexible lining tube; 9. inner cone tube; 10. outer cone tube; 1001. teeth; 11. dense mesh cover head. DETAILED DESCRIPTION

[0032] The following will be combined with the accompanying drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. It should be noted that if there are directional indications (such as up, down, left, right, front, back...) in the embodiments of the utility model, the directional indications are only used to explain the relative positional relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications also change accordingly. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or schemes that A and B meet at the same time. In addition, "multiple" refers to more than two.

[0033] See also Figure 1-9 The embodiment of the utility model provides a blowing device for preventing the carbon curtain of a web laying machine from running off the track, comprising a high-pressure air pipe 1, a straight pipe 2, a curved pipe 3, a plugging head 4 and a plugging tail 5;

[0034] The straight tube 2 is in an I-shaped straight tube shape, and the curved tube 3 is in an L-shaped curved tube shape. There are multiple straight tubes 2 and curved tubes 3, and magnetic rings 7 are fixed at both ends of the tube heads. Two adjacent straight tubes 2, two adjacent curved tubes 3, or two adjacent straight tubes 2 and curved tubes 3 are respectively assembled by adsorption via the magnetic rings 7;

[0035] The plugging head 4 and the plugging tail 5 are mirror images inverted at 180° to each other, and both include an inner conical tube 9 and an outer conical tube 10. The inner conical tube 9 is threadably mounted on the outer conical tube 10. The inner conical tube 9 is assembled with the straight tube 2 or the curved tube 3 by the magnetic ring 7 fixed on the tube head. The inner wall of the tube mouth of the outer conical tube 10 is provided with teeth 1001. The high-pressure air pipe 1 is penetrated by the plugging tail 5, passes through multiple straight tubes 2 or the curved tubes 3 in turn, and passes out from the plugging head 4, and is snap-fitted with the teeth 1001.

[0036] In the utility model, the high-pressure air pipe leading to the net laying machine is passed through the interior of the device and is installed on the net laying machine equipment through the device. Since the device is composed of multiple straight pipes and curved pipes and a plugging head and a plugging tail, the specific assembly length and assembly shape can be adjusted automatically. Therefore, under the restriction of the pipe body, not only can the problem that the high-pressure air pipe is not easy to be shaped and fixed be solved, the installation is more flexible and adaptable, and multiple high-pressure air pipes can be avoided from each other, and the blowing direction of the high-pressure air pipe can be accurately controlled to avoid the interference of each high-pressure air pipe with each other's blowing, so that the blowing is more concentrated, and the effect of removing flying flowers blocking the photoelectric sensing control device is better.

[0037] See also Figure 2-5 In this embodiment, the inner and outer diameters of the magnetic ring 7 are consistent with the inner and outer diameters of the straight tube 2, the curved tube 3 or the inner conical tube 9. With this design, under the adsorption effect of the magnetic ring 7, multiple straight tubes 2, multiple curved tubes 3, or multiple straight tubes 2 and multiple curved tubes 3 are adsorbed and assembled into a specified shape and length, which clarifies the installation path of the high-pressure gas pipe 1 in the current tube body, and at the same time, makes the overall lines of the tube body formed after assembly smoother.

[0038] See also Figure 2-5In this embodiment, it also includes a flexible inner liner tube 8, which is fitted and fixed on the inner wall of the magnetic ring 7 and extends to the inner wall of the straight tube 2, the curved tube 3 or the inner tapered tube 9. The outer diameter of the flexible inner liner tube 8 is consistent with the inner diameter of the magnetic ring 7, the straight tube 2, the curved tube 3 or the inner tapered tube 9, and the flexible inner liner tube 8 is made of a rubber material with a large friction coefficient. With this design, when two adjacent components are fixed by adsorption, first align the tube head of one component containing the flexible inner liner tube 8 with the tube head of another component that does not contain the flexible inner liner tube 8. While the adsorption connection is being made, the flexible inner liner tube 8 is inserted into the interior of the other component and fits to the inner wall of the component. Since the flexible inner liner tube 8 is made of a rubber material with a large friction coefficient, the tightness of the connection between the two components can be strengthened to further prevent loosening and falling off.

[0039] See also Figure 1 , 6 -9, in this embodiment, the inner and outer diameters of the expanded end of the inner cone tube 9 are consistent with the inner and outer diameters of the straight tube 2, the curved tube 3 or the magnetic ring 7, and the magnetic ring 7 is fixed to the expanded end of the inner cone tube 9. With this design, under the adsorption effect of the magnetic ring 7, the plugging head 4 and the plugging tail 5 are respectively connected to the head and tail of the entire tube body through the inner cone tube 9 to form a complete tube body structure.

[0040] See also Figure 6-9 In this embodiment, an external thread strip is distributed on the outer wall of the narrow end of the inner cone tube 9, and an internal thread strip is distributed on the inner wall of the flared end of the outer cone tube 10. The flared end of the outer cone tube 10 is sleeved on the narrow end of the inner cone tube 9, and the threads of the external thread strip and the internal thread strip are matched. With this design, whether it is the plugging head 4 or the plugging tail 5, the outer cone tube 10 can be tightened or loosened along the external thread strip outside the inner cone tube 9, thereby achieving a locking and fixing effect on the high-pressure air pipe 1 passing through the inner portion.

[0041] See also Figure 7 and 9In this embodiment, the teeth 1001 are fixed on the inner wall of the narrow end of the outer cone tube 10. The teeth 1001 are multiple and are arranged in an annular pattern. The teeth 1001 can be tightened or loosened with the thread of the inner cone tube 9 as the outer cone tube 10 is tightened or loosened. With this design, the outer cone tube 10 is tightened along the outer wall of the inner cone tube 9 to complete the locking of the high-pressure air pipe 1 by the plugging head 4 or the plugging tail 5. On the contrary, the outer cone tube 10 is loosened along the outer wall of the inner cone tube 9 to complete the unlocking of the high-pressure air pipe 1 by the plugging head 4 or the plugging tail 5, so as to achieve the fixation of the high-pressure air pipe 1, especially the fixation of the blowing pipe head. The multiple straight pipes 2 and the curved pipes 3 located between the plugging head 4 and the plugging tail 5 can limit the routing path of the high-pressure air pipe 1.

[0042] See also Figure 6 and 7 In this embodiment, the plugging head 4 also includes a dense mesh cover head 11, which is installed at the pipe mouth of the narrow end of the outer cone tube 10, and the high-pressure air pipe 1 extends outward from the outer cone tube 10 of the plugging head 4 and is placed in the dense mesh cover head 11. The dense mesh cover head 11 is made of stainless steel. With this design, due to the complex environment of the production room of the net laying machine, the flying flowers will not only fall on the photoelectric sensing control device, but also float in other places, even the blowing pipe head of the high-pressure air pipe 1, and when multiple high-pressure air pipes 1 are installed at the same time, in order to avoid mutual interference between the blowing directions of the high-pressure air pipes 1, the dense mesh cover head 11 is installed on the blowing port of the high-pressure air pipe 1, that is, the outer cone tube 10 of the plugging head 4, which can effectively prevent the flying flowers from blocking the blowing port of the high-pressure air pipe 1 and also prevent the flying flowers from entering the pipe body of the device, which is convenient for cleaning.

[0043] See also Figure 1 and 10 In this embodiment, it also includes a fastener 6, and there are multiple fasteners 6, which are respectively engaged with the straight pipe 2 or the curved pipe 3, and can be pasted and fixed to the net laying machine. In this design, because the assembly length and shape of the pipe body of the device are different, the fastener 6 can be fastened to any position of the pipe body of the device according to the installation requirements, as long as it can be stably installed on the net laying machine, the installation is more flexible and adaptable, and the applicability is stronger.

[0044] See also Figure 1 and 10In this embodiment, the fastener 6 includes a clamping ring 601, a spring tongue 603 and a fixing foot 604 that are integrally connected. The inner diameter of the clamping ring 601 is consistent with the outer diameter of the straight tube 2 or the curved tube 3, and the clamping ring 601 is provided with an opening 602. The spring tongue 603 has two spring tongues symmetrically distributed at both ends of the opening 602 and has elastic deformation capability. The fixing feet 604 have two spring tongues symmetrically distributed on both sides of the clamping ring 601 and are located outside the spring tongue 603, and an adhesive layer 605 is provided on the fixing foot 604. With such a design, when the clip 6 is in use, the opening 602 is aligned with any part of the straight tube 2 or the curved tube 3 and pressed down hard. Since the spring tongue 603 has elastic deformation ability, the spring tongue 603 will be squeezed and deformed or rebound to reset under force, forcing the tube body to squeeze into the interior of the clamping ring 601 and preventing the tube body from detaching from the clamping ring 601, thereby improving the stability of the clamping connection. Similarly, when it is necessary to remove the clip 6, it is only necessary to pull it out with force, tear off the coating outside the adhesive layer 605 in advance, align with the installation point, and press down the clamping ring 601 with force. At the same time, the fixing foot 604 is also pressed on the installation point to complete the fixation of the clip 6 on the net laying machine equipment. Conversely, when it is necessary to remove the clip 6, the adhesive layer 605 is torn off in advance, and then the clamping ring 601 is pulled out with force. In this way, no cable ties or screws are required, and the fixation can be completed by only using adhesive, which makes installation more convenient and trouble-free.

[0045] See also Figure 1 and 10 In this embodiment, there is a gap between the two spring tongues 603, and the inner wall of the spring tongue 603 can be attached to the outer wall of the straight tube 2 or the curved tube 3, and the tangent of the straight tube 2 or the curved tube 3 is a, and the tangent of the fixing foot 604 is b, and there is a gap between the tangent a and the tangent b. With this design, when the buckle 6 is pressed hard at the installation point, there is a gap between the tangent a and the tangent b, and the straight tube 2 or the curved tube 3 located in the clamping ring 601 will not be directly pressed against the installation point under the obstruction of the spring tongue 603, thereby avoiding the damage of the tube body due to extrusion.

[0046] In summary, in the utility model, the high-pressure air pipe routed to the web laying machine is arranged inside the device and installed on the web laying machine through the device. Because the device is composed of a plurality of straight pipes and curved pipes and a plugging head and a plugging tail, the specific assembly length and assembly shape can be adjusted by itself. Therefore, under the restriction of the pipe body, not only can the problem that the high-pressure air pipe is not easy to be fixed can be solved, the installation is more flexible and adaptable, and multiple high-pressure air pipes can be avoided from each other, and the blowing direction of the high-pressure air pipes can be accurately controlled to avoid the interference of the blowing between the high-pressure air pipes, so that the blowing is more concentrated, and the effect of removing the flying flowers blocked on the photoelectric sensing control device is better;

[0047] The straight pipes, curved pipes, plugging heads and plugging tails assembled to form the device have simple structures, are easy to be mass-produced, have low manufacturing costs and are highly practical.

[0048] It should be understood that the examples and implementation modes described herein are for illustrative purposes only and are not intended to limit the present invention. Those skilled in the art may make various modifications or changes based on the examples and implementation modes. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A blowing device for preventing carbon curtain from running off the side of a web laying machine, comprising a high-pressure air pipe (1), characterized in that: It also includes a straight pipe (2), a curved pipe (3), a plugging head (4) and a plugging tail (5); The straight tube (2) is in the shape of an I-shaped straight tube, and the curved tube (3) is in the shape of an L-shaped curved tube. There are multiple straight tubes (2) and curved tubes (3), and magnetic rings (7) are fixed at both ends of the tube heads. Two adjacent straight tubes (2), two adjacent curved tubes (3), or two adjacent straight tubes (2) and curved tubes (3) are respectively assembled by adsorption via the magnetic rings (7); The plugging head (4) and the plugging tail (5) are mirror images of each other inverted at 180 degrees, and both include an inner conical tube (9) and an outer conical tube (10). The inner conical tube (9) is threadably mounted on the outer conical tube (10). The inner conical tube (9) is assembled with the straight tube (2) or the curved tube (3) by adsorption via the magnetic attraction ring (7) fixed to the tube head. The inner wall of the tube mouth of the outer conical tube (10) is provided with teeth (1001). The high-pressure gas pipe (1) is inserted through the plugging tail (5), passes through a plurality of the straight tubes (2) or the curved tubes (3) in sequence, and exits from the plugging head (4) to be snap-fitted with the teeth (1001).

2. The device for blowing off the carbon curtain of a web laying machine to prevent deviation as claimed in claim 1 is characterized in that: The inner and outer diameters of the magnetic attraction ring (7) are consistent with the inner and outer diameters of the pipe opening of the straight pipe (2), the curved pipe (3) or the inner conical pipe (9).

3. The device for blowing off the carbon curtain of a web laying machine to prevent deviation as claimed in claim 1 is characterized in that: It also includes a flexible inner lining tube (8), which is fitted and fixed to the inner wall of the magnetic attraction ring (7) and extends toward the inner wall of the straight tube (2), the curved tube (3) or the inner cone tube (9). The outer diameter of the flexible inner lining tube (8) is consistent with the inner diameter of the magnetic attraction ring (7), the straight tube (2), the curved tube (3) or the inner cone tube (9), and the flexible inner lining tube (8) is made of a rubber material with a large friction coefficient.

4. The device for blowing off the carbon curtain of a web laying machine to prevent deviation as claimed in claim 1 is characterized in that: The inner and outer diameters of the expanded end of the inner conical tube (9) are consistent with the inner and outer diameters of the straight tube (2), the curved tube (3) or the magnetic ring (7), and the magnetic ring (7) is fixed to the expanded end of the inner conical tube (9).

5. The device for blowing off the carbon curtain of a web laying machine to prevent deviation as claimed in claim 1, characterized in that: An external thread strip is distributed on the outer wall of the narrow end of the inner conical tube (9), and an internal thread strip is distributed on the inner wall of the expanded end of the outer conical tube (10). The expanded end of the outer conical tube (10) is sleeved on the narrow end of the inner conical tube (9), and the threads of the external thread strip and the internal thread strip are matched.

6. The device for blowing off the carbon curtain of a web laying machine to prevent deviation as claimed in claim 1, characterized in that: The teeth (1001) are fixed on the inner wall of the narrow end of the outer cone tube (10). The teeth (1001) are multiple and are arranged in a ring at intervals. The teeth (1001) can be tightened or loosened from the high-pressure air pipe (1) as the outer cone tube (10) is screwed or loosened onto the thread of the inner cone tube (9).

7. The device for blowing off the carbon curtain of a web laying machine to prevent deviation as claimed in claim 1, characterized in that: The plugging head (4) further comprises a dense mesh cover head (11), wherein the dense mesh cover head (11) is installed at the pipe opening at the narrow end of the outer cone tube (10); the high-pressure air pipe (1) extends outward from the outer cone tube (10) of the plugging head (4) and is placed in the dense mesh cover head (11); the dense mesh cover head (11) is made of stainless steel metal.

8. The device for blowing off the carbon curtain of a web laying machine to prevent deviation as claimed in claim 1, characterized in that: It also comprises a plurality of snap fasteners (6), which are respectively snap-fitted and matched with the straight pipe (2) or the curved pipe (3), and can be glued and fixed to the web laying machine equipment.

9. The device for blowing off the carbon curtain of a web laying machine to prevent deviation as claimed in claim 8, characterized in that: The fastener (6) comprises a clamping ring (601), a spring tongue (603) and a fixing foot (604) which are integrally formed and connected. The inner diameter of the clamping ring (601) is consistent with the outer diameter of the straight tube (2) or the curved tube (3), and the clamping ring (601) is provided with an opening (602). The spring tongue (603) has two portions which are symmetrically distributed at both ends of the opening (602) and have elastic deformation capability. The fixing foot (604) has two portions which are symmetrically distributed at both sides of the clamping ring (601) and are located outside the spring tongue (603), and an adhesive layer (605) is provided on the fixing foot (604).

10. The device for blowing off the carbon curtain of a web laying machine to prevent deviation as claimed in claim 9, characterized in that: A gap is left between the two spring tongues (603), the inner wall of the spring tongue (603) can be attached to the outer wall of the straight tube (2) or the curved tube (3), the tangent of the straight tube (2) or the curved tube (3) is a, the tangent of the fixed foot (604) is b, and a gap is left between the tangent a and the tangent b.