A front spinning rotor with a ceramic coating
By spraying a nickel-chromium undercoat and an AT40 composite ceramic layer onto an aluminum guide wheel substrate, and combining it with a microcrystalline wax sealing layer, the problem of insufficient processing accuracy and wear resistance of existing guide wheels at high speeds is solved, achieving stable yarn processing at high speeds and extending the life of the guide wheel.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DEQING CHUANGZHI TECH CO LTD
- Filing Date
- 2025-07-07
- Publication Date
- 2026-06-05
AI Technical Summary
Existing integral ceramic guide wheels are difficult to process, have limited precision, and are heavy, making them unsuitable for high-speed applications; hard anodized aluminum wheels have average wear resistance, and their surface morphology is not conducive to tension control, resulting in poor yarn processing stability.
An aluminum guide wheel substrate is used, with a nickel-chromium undercoat and an AT40 composite ceramic layer sprayed onto the surface, combined with a microcrystalline wax sealing layer. Through plasma spraying and centerless soft polishing, a ceramic coating with good wear resistance and a surface morphology suitable for tension control is formed.
It achieves stable yarn processing at high speeds, extends the life of the guide wheel, improves processing accuracy and wear resistance, and enhances the stability and practicality of yarn processing.
Smart Images
Figure CN224325476U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of auxiliary devices for chemical fiber textile equipment, and in particular to a pre-spinning rotating guide wheel with a ceramic coating. Background Technology
[0002] As is well known, the pre-spinning rotary guide wheel is a key component of the online tension control system of a chemical fiber texturing machine. It converts the sliding friction between the yarn and the guide wheel surface into rolling friction, thereby stabilizing yarn tension and extending the life of the guide wheel. The guide wheel operates at speeds up to approximately 10,000 rpm, therefore, extremely high requirements are placed on its machining accuracy, assembly accuracy, moment of inertia, wear resistance, and surface morphology.
[0003] There are two main types of wear-resistant guide wheels commonly used in existing textile machinery: integral ceramic guide wheels and aluminum wheel guide wheels with hard anodized surfaces. However, both types have significant drawbacks:
[0004] Although integral ceramic wire guide wheels have high hardness and strength, they are difficult to process, have limited precision, and their large overall weight results in a large moment of inertia, making them unsuitable for high-speed applications.
[0005] Although hard anodized aluminum wheels have the advantages of light weight, high precision and good heat dissipation, the wear resistance of the oxide layer is generally poor and the surface morphology is not conducive to tension control, which can easily cause yarn slippage.
[0006] This reduces the stability of yarn processing, resulting in poor practicality. Utility Model Content
[0007] To solve the above-mentioned technical problems, this utility model provides a ceramic-coated pre-spinning rotary guide wheel with high processing precision, low moment of inertia, good wear resistance, and a surface morphology that is conducive to tension control, thereby improving the stability of yarn processing and enhancing its practicality.
[0008] The present invention discloses a front spinning rotary guide wheel with a ceramic coating, comprising an aluminum guide wheel base, a ceramic coating, a sealing layer, and a V-groove. The surface of the aluminum guide wheel base is provided with a V-groove for accommodating yarn, and the surface of the aluminum guide wheel base is provided with a ceramic coating, and the surface of the ceramic coating is provided with a sealing layer.
[0009] Preferably, the ceramic coating includes a nickel-chromium underlayer and an AT40 composite ceramic layer, wherein the nickel-chromium underlayer is disposed on the surface of the aluminum guide wheel substrate, and the AT40 composite ceramic layer is disposed on the surface of the nickel-chromium underlayer.
[0010] Preferably, the sealing layer is microcrystalline wax, and the surface of the AT40 composite ceramic layer is treated with microcrystalline wax for pore sealing.
[0011] Preferably, the surface of the aluminum guide wheel substrate is sandblasted.
[0012] Preferably, the ceramic coating is prepared by plasma spraying.
[0013] Preferably, the surface of the ceramic coating is polished with a centerless soft polishing wheel.
[0014] Compared with the prior art, the advantages of the ceramic-coated pre-spinning rotary guide wheel of this utility model are as follows: it adopts an aluminum guide wheel base, which is lightweight. Combined with the thin ceramic coating, the overall moment of inertia is small, which can meet the high speed requirements of about 10,000 rpm. At the same time, its wear resistance is significantly better than that of traditional hard anodized aluminum wheels, which extends the service life of the guide wheel. Furthermore, it has high processing precision, small moment of inertia, good wear resistance, and a surface morphology that is conducive to tension control, thereby improving the stability of yarn processing and thus enhancing its practicality. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0016] Figure 2 This is a schematic diagram of the left-side structural cross-section of this utility model;
[0017] Figure 3 This is a partial front view cross-sectional diagram of the present invention;
[0018] The following labels are used in the attached diagram: 1. Aluminum guide wheel substrate; 2. Ceramic coating; 3. Sealing layer; 4. V-groove; 201. Nickel-chromium underlayer; 202. AT40 composite ceramic layer. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0020] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0022] like Figures 1 to 3 As shown, this utility model discloses a pre-spinning rotary guide wheel with a ceramic coating, comprising an aluminum guide wheel base 1, a ceramic coating 2, a sealing layer 3, and a V-groove 4. The surface of the aluminum guide wheel base 1 is provided with a V-groove for accommodating yarn, and the surface of the aluminum guide wheel base 1 is provided with a ceramic coating 2, and the surface of the ceramic coating 2 is provided with a sealing layer 3. The use of an aluminum guide wheel base results in a lightweight design, and combined with the thinness of the ceramic coating, the overall moment of inertia is small, which can meet the high speed requirements of about 10,000 rpm. At the same time, its wear resistance is significantly better than that of traditional hard anodized aluminum wheels, extending the service life of the guide wheel. Furthermore, the high processing precision, small moment of inertia, good wear resistance, and surface morphology are conducive to tension control, thereby improving the stability of yarn processing and enhancing its practicality.
[0023] As a preferred embodiment of the above, the ceramic coating 2 includes a nickel-chromium underlayer 201 and an AT40 composite ceramic layer 202. The surface of the aluminum guide wheel substrate 1 is provided with a nickel-chromium underlayer 201 and the surface of the nickel-chromium underlayer 201 is provided with an AT40 composite ceramic layer 202.
[0024] A nickel-chromium underlayer 3 was applied to the roughened aluminum guide wheel substrate using plasma spraying. The nickel-chromium underlayer contained 80% nickel and 20% chromium, serving to increase adhesion and provide corrosion protection. The spraying parameters were: spraying current 500A, voltage 65V, main gas (argon) flow rate 50L / M, secondary gas (hydrogen) flow rate 5.5L / M, and powder feeding rate 35g / min.
[0025] On top of the nickel-chromium underlayer 3, an AT40 composite ceramic layer 4 is prepared using a plasma spraying process. This layer contains 40% titanium oxide and 60% aluminum oxide. The spraying parameters are the same as the underlayer, ensuring that the coating porosity is ≤3% and the microhardness reaches HV650-800. The AT40 composite ceramic layer has moderate hardness and good toughness. Its wear resistance and surface polishability are suitable for processing the unique "pilling" morphology of textile parts. At the same time, the presence of titanium oxide improves the thermal conductivity of the coating, thus enhancing its practicality.
[0026] As a preferred embodiment of the above, the sealing layer 3 is further comprising microcrystalline wax, and the surface of the AT40 composite ceramic layer 202 is treated with microcrystalline wax for pore sealing; the ceramic coating 2 is sealed with microcrystalline wax sealant, so that the coating has reliable corrosion resistance and appropriate lubricity, thereby enhancing its practicality.
[0027] As a preferred embodiment of the above, the surface of the aluminum guide wheel substrate 1 is sandblasted; 60-mesh white corundum abrasive is used to sandblast the coating surface under a sandblasting air pressure of 0.2MPa, so that the surface is roughened uniformly to a white matte finish, thereby enhancing the adhesion between the subsequent coating and the substrate, thus enhancing practicality.
[0028] As a preferred embodiment of the above, the ceramic coating 2 is prepared by plasma spraying. Plasma spraying can prepare a ceramic coating on the surface of the aluminum guide wheel substrate. Combined with the characteristics of light weight and small moment of inertia of the aluminum substrate, it solves the problem that the overall ceramic guide wheel is heavy and not suitable for high speed. At the same time, it also has the high wear resistance of ceramic, thus enhancing its practicality.
[0029] As a preferred embodiment of the above, the surface of the ceramic coating 2 is polished by a centerless soft polishing wheel; after the plasma spraying coating is polished by a centerless soft polishing wheel, the surface forms a "pile" morphology with evenly distributed high and low points, which is beneficial to control the frictional tension of the yarn, reduce slippage, and improve tension stability, thus enhancing practicality.
[0030] This invention relates to a pre-spinning rotary guide wheel with a ceramic coating. During operation, the yarn is guided by a V-shaped groove on the surface of the guide wheel. The depth of the V-shaped groove matches the "pile-like" morphology (uniformly distributed high and low points) formed after polishing, allowing the yarn to run stably along a preset trajectory, avoiding deviation or slippage. Furthermore, during this process, when the yarn contacts the surface of the guide wheel, the smooth surface with micro-textured ceramic coating transforms traditional sliding friction into rolling friction, reducing frictional resistance fluctuations. The guide wheel rotates at a high speed of approximately 10,000 rpm. Thanks to the lightweight design (low moment of inertia) of the aluminum substrate and ceramic coating, it ensures smooth operation and reduces equipment vibration until the manufacturing process is complete. Before completing the above actions, it is first moved to the position required by the user.
[0031] The terms “vertical,” “horizontal,” “left,” “right,” and similar expressions used in this article are for illustrative purposes only.
[0032] In this utility model, the terms "first," "second," and "third" do not represent a specific quantity or order, but are merely used to distinguish names.
[0033] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A pre-spinning rotating guide wheel with a ceramic coating (2), comprising an aluminum guide wheel substrate (1), characterized in that, It also includes a ceramic coating (2), a sealing layer (3) and a V-groove (4). The surface of the aluminum guide wheel base (1) is provided with a V-groove for accommodating yarn, and the surface of the aluminum guide wheel base (1) is provided with a ceramic coating (2), and the surface of the ceramic coating (2) is provided with a sealing layer (3).
2. The pre-spinning rotary guide wheel with ceramic coating (2) as described in claim 1, characterized in that, The ceramic coating (2) includes a nickel-chromium underlayer (201) and an AT40 composite ceramic layer (202). The aluminum guide wheel substrate (1) is provided with a nickel-chromium underlayer (201) and the surface of the nickel-chromium underlayer (201) is provided with an AT40 composite ceramic layer (202).
3. The pre-spinning rotary guide wheel with ceramic coating (2) as described in claim 1, characterized in that, The sealing layer (3) is microcrystalline wax, and the surface of the AT40 composite ceramic layer (202) is sealed with microcrystalline wax.
4. The pre-spinning rotary guide wheel with ceramic coating (2) as described in claim 1, characterized in that, The surface of the aluminum guide wheel substrate (1) is sandblasted.
5. A pre-spinning rotary guide wheel with a ceramic coating (2) as described in claim 1, characterized in that, The ceramic coating (2) is prepared by plasma spraying.
6. A pre-spinning rotary guide wheel with a ceramic coating (2) as described in claim 2, characterized in that, The surface of the ceramic coating (2) is polished by a centerless soft polishing wheel.