Carbon fiber drying and sizing machine

By integrating the sizing and drying stations and employing heated rollers and a cleaning mechanism, the problems of low drying efficiency and wasted space in existing technologies are solved, achieving efficient carbon fiber drying and performance stability.

CN224378485UActive Publication Date: 2026-06-19BOLUWEI MACHINERY JIANGSU CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BOLUWEI MACHINERY JIANGSU CO LTD
Filing Date
2025-06-20
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing carbon fiber sizing traction machines require additional equipment for drying, which wastes production space and has low drying efficiency, resulting in uneven sizing on the fiber surface and affecting fiber performance.

Method used

A carbon fiber drying and sizing machine was designed, which integrates the sizing and drying stations. It uses heated rollers for direct drying and cleans the surface of the heated rollers through a cleaning mechanism and air pipes to ensure temperature uniformity and drying effect.

Benefits of technology

It improves drying efficiency, saves production space, and extends the service life of the heating rollers through a cleaning mechanism, ensuring the stability of fiber properties.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to a carbon fiber drying and sizing machine, including a frame, a liquid tank, steel rollers, a roller assembly, a heating roller, a guide roller, and a cleaning mechanism. The cleaning mechanism is located below the heating roller and includes a drive component, a connecting arm, and a scraper. The drive component is connected to the scraper via the connecting arm. An air pipe is located below the scraper, with its opening facing the bottom of the heating roller. The advantages of this utility model are: after the material is sizing, it is directly drawn to the upper heating roller, integrating the sizing and drying stations, saving production space; the cleaning mechanism and air pipe clean the surface of the heating roller, improving the drying effect and extending the service life of the heating roller.
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Description

Technical Field

[0001] This utility model relates to the field of carbon fiber processing technology, specifically a carbon fiber drying and sizing machine. Background Technology

[0002] Sizing is a necessary process after high-temperature carbonization of carbon fiber precursor, belonging to the post-processing stage of carbon fiber production. A sizing machine coats the surface of carbon fiber with a specific sizing agent to improve the fiber's processing properties and the mechanical properties of the final composite material. However, existing carbon fiber sizing traction machines often require separate downstream equipment for drying and traction after the material has been immersed in the sizing agent, wasting production space and affecting the efficiency of material drying and dehydration. Sizing agent that is not dried in time can easily accumulate locally on the fiber surface, leading to uneven coating thickness, fiber damage, and performance degradation. Utility Model Content

[0003] The purpose of this invention is to provide a carbon fiber drying and sizing machine that can improve drying efficiency and save production space.

[0004] To achieve the above-mentioned utility model objectives, this utility model provides a carbon fiber drying and sizing machine, including a frame, a liquid tank, steel rollers, a roller assembly, heating rollers, guide rollers, and a cleaning mechanism;

[0005] The heating roller is positioned above the liquid tank via the frame, and the steel roller is positioned above the liquid tank;

[0006] The roll assembly is located on one side of the steel roll; the guide roll is located on the discharge side of the frame;

[0007] The cleaning mechanism is located below the heating roller. The cleaning mechanism includes a drive unit, a connecting arm, and a scraper. The drive unit is connected to the scraper through the connecting arm. An air pipe is provided below the scraper, and the opening of the air pipe faces the bottom of the heating roller.

[0008] Preferably, an exhaust device is provided above the heating roller.

[0009] As a further improvement to the utility model, the heating roller is a spiral flow channel roller.

[0010] Furthermore, the heating roller is equipped with a lubricating oil pipeline.

[0011] As a further improvement to the utility model, the roll assembly consists of two rubber rolls.

[0012] This utility model discloses a carbon fiber drying and sizing machine. Steel rollers immerse carbon fiber material in a liquid tank. After exiting the tank, the material is rolled between the rollers and then guided to a heating roller. The heating roller dries the material, reducing its moisture content to below 0.1%. The material is then guided out of the frame via a guide roller. The driving component can be a cylinder, which drives a connecting arm to rotate, bringing a scraper close to the surface of the heating roller to scrape off any remaining adhesive. In conjunction with an air pipe, the heating roller surface is regularly cleaned and maintained to ensure uniform temperature and effective drying of the material.

[0013] The advantages of this carbon fiber drying and sizing machine compared to existing technologies are as follows:

[0014] (1) After the material is sizing, the material is directly pulled to the heating roller above, integrating the sizing station and the drying station to save production space;

[0015] (2) The surface of the heating roller is cleaned by the cleaning mechanism and air pipe, which improves the drying effect and extends the service life of the heating roller. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a carbon fiber drying and sizing machine according to the present invention;

[0017] Figure 2 This is a schematic diagram of the connection structure of the cleaning mechanism. Detailed Implementation

[0018] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0019] like Figure 1-2 As shown, the present invention provides a carbon fiber drying and sizing machine, which includes a frame 1, a liquid tank 2, a steel roller 3, a roller group 4, a heating roller 5, a guide roller 6, and a cleaning mechanism 7.

[0020] The heating roller 5 is positioned above the liquid tank 2 via the frame 1, and the steel roller 3 is positioned above the liquid tank 2;

[0021] Roller assembly 4 is located on one side of steel roll 3; guide roll 6 is located on the discharge side of frame 1;

[0022] The cleaning mechanism 7 is located below the heating roller 5. The cleaning mechanism 7 includes a drive unit 71, a connecting arm 72, and a scraper 73. The drive unit 71 is connected to the scraper 73 through the connecting arm 72. An air pipe 9 is provided below the scraper 73, and the opening of the air pipe 9 faces the bottom of the heating roller 5.

[0023] This utility model discloses a carbon fiber drying and sizing machine. A steel roller 3 pulls carbon fiber material into a liquid tank 2 for immersion and rolling. After exiting the liquid tank 2, the carbon fiber material is rolled between rollers 4 and then drawn to a heating roller 5. The heating roller 5 dries the material, reducing its moisture content to below 0.1%. The carbon fiber material is then discharged from the frame 1 via a guide roller 6. The driving component 71 can be a cylinder, which drives the connecting arm 72 to rotate, bringing the scraper 73 close to the roller surface of the heating roller 5 to scrape off any remaining adhesive material. In conjunction with the air pipe 9, the roller surface of the heating roller 5 is regularly cleaned and maintained to ensure uniform temperature and effective drying of the material.

[0024] An exhaust device 8 is provided above the heating roller 5 to quickly expel the hot air generated during the drying of carbon fiber materials, thereby improving the drying effect.

[0025] The heating roller 5 is preferably a spiral flow channel roller. The spiral flow channel roller is an existing roller structure, which can enhance the heat exchange capacity of the heating roller 5 and improve the drying effect.

[0026] The heating roller 5 is equipped with a lubricating oil pipeline 51. The heating roller 5 operates in a high-temperature environment, and the heat generated by friction may aggravate equipment wear. The lubricating oil can carry away some of the heat by circulating through the lubricating oil pipeline 51, preventing the bearing from overheating, deforming, or seizing.

[0027] Roller group 4 consists of two rubber rollers. The flexibility of the rubber rollers can prevent the carbon fibers from being scratched or crushed during the rolling process.

[0028] The preferred embodiments of this utility model have been described in detail above, but this utility model is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this utility model, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A carbon fiber drying and sizing machine characterized by, The machine frame, the liquid tank, the steel roller, the roller set, the heating roller, the guide roller and the cleaning mechanism are included. The heating roller is above the liquid tank through the machine frame, and the steel roller is above the liquid tank. The roller set is arranged on one side of the steel roller, and the guide roller is on the discharging side of the machine frame. The cleaning mechanism is below the heating roller, and the cleaning mechanism includes a driving member, a connecting arm and a scraper.

2. A carbon fiber drying and sizing machine as claimed in claim 1, wherein, The scraper is connected with the driving member through the connecting arm.

3. A carbon fiber drying and sizing machine as claimed in claim 1, wherein, A gas pipe is arranged below the scraper, and the pipe opening of the gas pipe faces the bottom of the heating roller.

4. A carbon fiber drying and sizing machine as claimed in claim 1 or 3, wherein, An exhaust device is arranged above the heating roller.

5. A carbon fiber drying and sizing machine as claimed in claim 1, wherein, The heating roller is a spiral flow channel roller. The heating roller is provided with a lubricating oil pipeline. The roller set is two rubber rollers.