Multi-stage fiber unfolding system

Abstract

The invention discloses a multi-stage fiber spreading system, and a planet wheel dispersing device comprises three groups of planet wheel differential systems, namely a first-stage planet wheel differential yarn spreading system, a second-stage planet wheel differential yarn spreading system and a third-stage planet wheel differential yarn spreading system. The I-stage planet wheel differential yarn spreading system is of a cylindrical structure, and fibers are subjected to I-stage pre-spreading in the I-stage planet wheel differential yarn spreading system; then, the fibers enter a second-stage star wheel differential yarn spreading system and a third-stage star wheel differential yarn spreading system in sequence, yarn spreading bars of different numbers are distributed on the surfaces of the two-stage system, and the linear speed of the fibers and the linear speed of the yarn spreading bars are different, namely differential; when the fibers pass through the surface of the yarn spreading bar to form a fold line shape, the yarn spreading bar rolls the fibers, so that the fibers are gradually widened.

Description

Technical Field

[0001] The present invention belongs to the field of fiber spreading equipment, in particular to a multi-stage fiber spreading system. Background Art

[0002] The performance of fiber-reinforced composites depends on the resin matrix and reinforcing fibers. Among them, the role of the reinforcing fibers is affected by the fiber spreading width. Currently, the main spreading processes include ultrasonic method, air flow method, etc. In the national invention patent CN112537909A, the fiber is spread by ultrasonic means. This device is complex to operate, and the ultrasonic wave pollutes the surrounding environment. In addition, a solution is used in the process of spreading the yarn, which involves the problem of solution recovery and consumes too much energy. In the national invention patent 213415801U, a pneumatic yarn spreading device is disclosed, through which the carbon fiber tow can be expanded. However, there are hidden dangers in the process of spreading the yarn because carbon fiber is extremely easy to cause short circuits in the equipment. For example, it is difficult to avoid the carbon fiber filaments being blown into the surrounding air when using air flow to spread the yarn. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a convenient way to spread the fiber, and gradually spread the fiber through a multi-stage planetary gear structure. And there are no auxiliary means such as heating and ultrasonic waves in the process of spreading the fiber, realizing an energy-saving and environmentally friendly fiber spreading method.

[0004] The technical solution adopted by the present invention to solve the technical problem is: the planetary gear differential fiber spreading device includes three groups of planetary gear differential systems, namely, the first-stage planetary gear differential yarn spreading system, the second-stage planetary gear differential yarn spreading system, and the third-stage planetary gear differential yarn spreading system;

[0005] The first-stage planetary gear differential yarn spreading system includes a first-stage planetary gear differential yarn spreading system drive motor and a first-stage planetary gear differential yarn spreading system planetary gear spreading rod; among them, the first-stage planetary gear differential yarn spreading system drive motor is a motor with adjustable speed, and the surface of the first-stage planetary gear differential yarn spreading system planetary gear spreading rod is a chromium plating layer, with a surface roughness of 0.4 and a circular runout of ≤0.02 mm; the surface is plated with hard chromium HRC60-68;

[0006] The secondary planetary differential yarn spreading system includes a drive motor for the secondary planetary differential yarn spreading system, a planetary gear rotating shaft for the secondary planetary differential yarn spreading system, a folding shaft fixing ring for the secondary planetary differential yarn spreading system, and a folding shaft for the secondary planetary differential yarn spreading system. Among them, the drive motor for the secondary planetary differential yarn spreading system is a motor with adjustable speed. The surface of the folding shaft for the secondary planetary differential yarn spreading system is a chromium plating layer, with a surface roughness of 0.4 and a circular runout of ≤0.02 mm; the surface is hard chromium plated with HRC60 - 68. The number of folding shafts for the secondary planetary differential yarn spreading system is 4 - 6, installed on the folding shaft fixing ring for the secondary planetary differential yarn spreading system, and evenly distributed on the surface of the planetary gear rotating shaft for the secondary planetary differential yarn spreading system;

[0007] The tertiary planetary differential yarn spreading system includes a drive motor for the tertiary planetary differential yarn spreading system, a planetary gear rotating shaft for the tertiary planetary differential yarn spreading system, a folding shaft fixing ring for the tertiary planetary differential yarn spreading system, and a folding shaft for the tertiary planetary differential yarn spreading system. Among them, the drive motor for the tertiary planetary differential yarn spreading system is a motor with adjustable speed. The surface of the folding shaft for the tertiary planetary differential yarn spreading system is a chromium plating layer, with a surface roughness of 0.4 and a circular runout of ≤0.02 mm; the surface is hard chromium plated with HRC60 - 68. The number of folding shafts for the tertiary planetary differential yarn spreading system is 6 - 8, installed on the folding shaft fixing ring for the tertiary planetary differential yarn spreading system, and evenly distributed on the surface of the planetary gear rotating shaft for the tertiary planetary differential yarn spreading system.

[0008] The beneficial effects of the present invention are as follows: The device has a simple structure and is easy to operate. Through the primary planetary differential yarn spreading system, the secondary planetary differential yarn spreading system, and the tertiary planetary differential yarn spreading system, the fibers are gradually widened step by step. In addition, there are no auxiliary means such as heating or ultrasonic waves during fiber spreading, which saves energy. Brief Description of the Drawings

[0009] Figure 1 is the overall schematic diagram of the present invention.

[0010] Figure 2 is the detailed schematic diagram of the multi - stage fiber spreading system. Detailed Embodiments

[0011] The present invention will be further described below with reference to the drawings and embodiments.

[0012] As Figure 1 and Figure 2As shown in the figure, the fiber spreading device with planetary gear differential of the present invention includes a driving motor 1 of the first-stage planetary gear differential fiber spreading system, a planetary gear fiber spreading rod 2 of the first-stage planetary gear differential fiber spreading system, a driving motor 3 of the second-stage planetary gear differential fiber spreading system, a planetary gear rotating shaft 4 of the second-stage planetary gear differential fiber spreading system, a broken line shaft fixing ring 5 of the second-stage planetary gear differential fiber spreading system, a broken line shaft 6 of the second-stage planetary gear differential fiber spreading system, a driving motor 7 of the third-stage planetary gear differential fiber spreading system, a planetary gear rotating shaft 8 of the third-stage planetary gear differential fiber spreading system, a planetary gear differential shaft fixing ring 9 of the third-stage planetary gear differential fiber spreading system, and a broken line shaft 10 of the third-stage planetary gear differential fiber spreading system;

[0013] The fiber bypasses above the planetary gear fiber spreading rod 2 of the first-stage planetary gear differential fiber spreading system. During the fiber spreading process, the linear velocity on the surface of the planetary gear fiber spreading rod 2 of the first-stage planetary gear differential fiber spreading system is greater than the linear velocity of the fiber. For example, if the linear velocity of the fiber is 3 m / min, the linear velocity on the surface of the planetary gear fiber spreading rod 2 of the first-stage planetary gear differential fiber spreading system should be slightly greater than 3 m / min, which is 3.5 - 4 m / min;

[0014] After that, the fiber winds around below the broken line shaft 6 of the second-stage planetary gear differential fiber spreading system. The number of broken line shafts of the second-stage planetary gear differential fiber spreading system is 5. Similarly, the linear velocity on the surface of the broken line shaft 6 of the second-stage planetary gear differential fiber spreading system is greater than the linear velocity of the fiber. For example, if the linear velocity of the fiber is 3 m / min, the linear velocity on the surface of the broken line shaft 6 of the second-stage planetary gear differential fiber spreading system should be slightly greater than 3 m / min, which is 3.5 - 4 m / min; The spreading width of the second-stage planetary gear differential fiber spreading system is greater than that of the first-stage planetary gear differential fiber spreading system;

[0015] Finally, the fiber winds around above the broken line shaft 10 of the third-stage planetary gear differential fiber spreading system. The number of broken line shafts of the third-stage planetary gear differential fiber spreading system is 7. Similarly, the linear velocity on the surface of the broken line shaft 10 of the third-stage planetary gear differential fiber spreading system is greater than the linear velocity of the fiber. For example, if the linear velocity of the fiber is 3 m / min, the linear velocity on the surface of the broken line shaft 6 of the third-stage planetary gear differential fiber spreading system should be slightly greater than 3 m / min, which is 3.5 - 4 m / min; The spreading width of the third-stage planetary gear differential fiber spreading system is greater than that of the second-stage planetary gear differential fiber spreading system;

[0016] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A multi-stage fiber unfolding system, including a driving motor (1) of the first-stage planetary gear differential yarn unfolding system, a planetary gear yarn unfolding rod (2) of the first-stage planetary gear differential yarn unfolding system, a driving motor (3) of the second-stage planetary gear differential yarn unfolding system, a planetary gear rotating shaft (4) of the second-stage planetary gear differential yarn unfolding system, a broken line shaft fixing ring (5) of the second-stage planetary gear differential yarn unfolding system, a broken line shaft (6) of the second-stage planetary gear differential yarn unfolding system, a driving motor (7) of the third-stage planetary gear differential yarn unfolding system, a planetary gear rotating shaft (8) of the third-stage planetary gear differential yarn unfolding system, a planetary gear differential shaft fixing ring (9) of the third-stage planetary gear differential yarn unfolding system, and a broken line shaft (10) of the third-stage planetary gear differential yarn unfolding system.

2. The multi-stage fiber deployment system according to claim 1, wherein First-stage planetary gear differential yarn unfolding system: The driving motor (1) of the first-stage planetary gear differential yarn unfolding system is a motor with adjustable speed; the surface of the planetary gear yarn unfolding rod (2) of the first-stage planetary gear differential yarn unfolding system is a chrome plating layer, with a surface roughness of 0.4 and a circular runout ≤ 0.02 mm; The surface is plated with hard chromium HRC60 - 68.

3. The multi-stage fiber deployment system according to claim 1, characterized in that Second-stage planetary gear differential yarn unfolding system: The driving motor (3) of the second-stage planetary gear differential yarn unfolding system is a motor with adjustable speed; the surface of the broken line shaft (6) of the second-stage planetary gear differential yarn unfolding system is a chrome plating layer, with a surface roughness of 0.4 and a circular runout ≤ 0.02 mm; the surface is plated with hard chromium HRC60 - 68; the number of the broken line shafts (6) of the second-stage planetary gear differential yarn unfolding system is 4 - 6, and the broken line shafts of the second-stage planetary gear differential yarn unfolding system are installed on the broken line shaft fixing ring (5) of the second-stage planetary gear differential yarn unfolding system and are evenly distributed on the surface of the planetary gear rotating shaft (4) of the second-stage planetary gear differential yarn unfolding system.

4. A multi-stage fiber deployment system according to claim 1, characterized in that Third-stage planetary gear differential yarn unfolding system: The driving motor (7) of the third-stage planetary gear differential yarn unfolding system is a motor with adjustable speed; the surface of the broken line shaft (10) of the third-stage planetary gear differential yarn unfolding system is a chrome plating layer, with a surface roughness of 0.4 and a circular runout ≤ 0.02 mm; the surface is plated with hard chromium HRC60 - 68; the number of the broken line shafts (10) of the third-stage planetary gear differential yarn unfolding system is 6 - 8, and the broken line shafts of the third-stage planetary gear differential yarn unfolding system are installed on the broken line shaft fixing ring (9) of the third-stage planetary gear differential yarn unfolding system and are evenly distributed on the surface of the planetary gear rotating shaft (8) of the third-stage planetary gear differential yarn unfolding system.

Images