CN-224227299-U - Uniform oiling device for carbon fiber precursor

Abstract

The utility model discloses a uniform oiling device for carbon fiber precursors, which belongs to the technical field of carbon fiber production equipment and comprises an oil groove, wherein one side of the oil groove is provided with an oil distribution structure, the oil distribution structure is positioned in the oil groove, one side of the oil distribution structure is provided with a plurality of mesh plates, the bottom of the oil distribution structure is provided with a distribution pipe structure, and the oil is conveyed into a distribution pipe which is transversely arranged in a bilateral symmetry oil inlet mode and uniformly flows out of the oil groove through an oil outlet array which is precisely designed. The design is based on ANASYS fluid simulation technology, and the quantity, the aperture and the distance of oil holes are optimized and determined according to the total flow of the oil agent, the pipe diameter of a distributing pipe and other input parameters, so that the flow deviation of each oil hole is less than or equal to 2%, and the distribution uniformity of a flow velocity field is more than 95%. The scientific layout not only eliminates the concentration gradient problem generated by the traditional distribution mode, but also can establish a stable concentration gradient field (CV value < 3%) in the strand infiltration area.

Inventors

• YU JUN
• TIAN LIN
• WANG CHANGXUN
• Zhou Canjie
• YING YUFENG
• ZHANG ZHIJIANG
• DONG GANG
• ZHENG SHAOJUN

Assignees

• 浙江精工集成科技股份有限公司

Dates

Publication Date

20260512

Application Date

20250630

Claims (4)

1. 1. The utility model provides a carbon fiber precursor evenly oil applying device, includes oil groove (12), its characterized in that one side of oil groove (12) is provided with oil agent distribution structure (1), oil agent distribution structure (1) are located the inside of oil groove (12), one side of oil agent distribution structure (1) sets up a plurality of mesh plates (2), the inside both sides that correspond mesh plate (2) of oil groove (12) set up a plurality of slide rails (21), the inside top of oil groove (12) is provided with a plurality of fixed guide arms (4) respectively, two adjacent below between fixed guide arms (4) is provided with presses guide arm (5), oil groove (12) are located former silk ejection of compact one end and are provided with collecting disc (9), the top of collecting disc (9) is provided with discharging roller (13), the top of discharging roller (13) is provided with scrapes oily pole (6), the top of scraping oily pole (6) is provided with wire separator (7), the top of wire separator (7) is provided with compression roller device (8).
2. 2. A carbon fiber precursor uniform oiling device according to claim 1 is characterized in that a heat exchanger (3) is arranged in the oil groove (12), and the heat exchanger (3) is positioned below a plurality of fixed guide rods (4) and pressing guide rods (5).
3. 3. The device for uniformly oiling carbon fiber precursors according to claim 1 is characterized in that a collecting pipe (11) is arranged at the bottom of the liquid collecting disc (9), and an oiling agent circulating tank (10) is connected below the collecting pipe (11).
4. 4. The device for uniformly oiling carbon fiber precursors is characterized in that the oiling agent distribution structure (1) comprises a liquid inlet pipe (101), a liquid collecting pipe (106), a distribution pipe (107) and a sealing sleeve (108), wherein first bending parts (102) are respectively formed on two sides of the liquid inlet pipe (101), the first bending parts (102) vertically extend downwards for one section to form second bending parts (103), the second bending parts (103) transversely extend for one section to form third bending parts (104), the liquid collecting pipe (106) is sleeved on the surface of the liquid inlet pipe (101) located in an oil groove (12), liquid outlet grooves (105) are formed on the front side and the rear side of the liquid inlet pipe (101) located on the inner surface of the liquid collecting pipe (106), liquid collecting cavities (109) are formed in the liquid collecting pipe (106), the distribution pipes (107) are arranged on one side, facing the mesh plate (2), of the distribution pipe (107) are arranged on two sides, connected with the oil groove (12), of the sealing sleeve (108).

Description

Uniform oiling device for carbon fiber precursor Technical Field The utility model belongs to the technical field of carbon fiber production equipment, and particularly relates to a carbon fiber precursor uniform oiling device. Background The oiling process is a key step in the preparation process of the polyacrylonitrile-based carbon fiber precursor, and the oiling agent is used for infiltrating the precursor fiber bundle, so that the antistatic performance of the polyacrylonitrile-based carbon fiber precursor can be improved, and the trafficability and the filament releasing stability in the preparation process of the precursor fiber are improved. Meanwhile, the heat resistance of the precursor fiber can be improved in the oiling process, and the melting of the precursor fiber in the drying densification and pre-oxidation processes is avoided, so that the mechanical property of the fiber is reduced. At present, the carbon fiber precursor oiling device mainly adopts the modes of spraying oiling, dipping oiling, ultrasonic auxiliary oiling, circulating pump oiling and the like. Although the existing method improves the oiling uniformity to a certain extent, the defects that the spraying oiling is efficient, uneven distribution of the oiling agent and damage to tows are easy to cause and the oiling agent permeability is poor still exist. The high-speed spraying can cause mechanical damage to the tows to affect the quality of the precursor, the dipping oiling can improve the permeability of the oiling agent, but the oiling efficiency is lower, the oiling agent waste is serious, the concentration and the temperature of the oiling agent in the oil groove are difficult to accurately control to affect the oiling uniformity, the ultrasonic auxiliary oiling maintenance is complex, the energy consumption is higher, and the production cost is increased. Disclosure of utility model The utility model mainly solves the technical problems existing in the prior art and provides a device for uniformly oiling carbon fiber precursor. The technical problem is mainly solved by the following technical scheme that the carbon fiber precursor uniform oiling device comprises an oil groove and is characterized in that one side of the oil groove is provided with an oiling agent distribution structure, the oiling agent distribution structure is positioned in the oil groove, one side of the oiling agent distribution structure is provided with a plurality of mesh plates, two sides of the oil groove corresponding to the mesh plates are provided with a plurality of sliding rails, the upper part of the inner part of the oil groove is respectively provided with a plurality of fixed guide rods, a pressing guide rod is arranged below between two adjacent fixed guide rods, the oil groove is positioned at one discharging end of a precursor, a discharging roller is arranged above the liquid collecting plate, an oil scraping rod is arranged above the discharging roller, a wire separator is arranged above the oil scraping rod, and a compression roller device is arranged above the wire separator. Preferably, a heat exchanger is provided in the oil groove, and the heat exchanger is located below the plurality of fixed guide rods and the press-in guide rods. Preferably, a collecting pipe is arranged at the bottom of the liquid collecting disc, and an oil agent circulating tank is connected below the collecting pipe. Preferably, the oil agent distribution structure comprises a liquid inlet pipe, a liquid collecting pipe, a distribution pipe and a sealing sleeve, wherein first bending parts are respectively formed on two sides of the liquid inlet pipe, second bending parts are formed after the first bending parts vertically extend downwards for one section, third bending parts are formed after the second bending parts transversely extend for one section, the liquid collecting pipe is sleeved on the surface of the liquid inlet pipe, inside the liquid inlet pipe, of which the front side and the rear side are respectively provided with a liquid outlet groove, a liquid collecting cavity is formed inside the liquid collecting pipe, a plurality of distribution pipes are arranged on one side, facing the mesh plate, of the liquid collecting pipe, and the sealing sleeve is arranged on two sides of the joint of the liquid inlet pipe and the oil groove. The utility model has the beneficial effects that: 1. This patent adopts the distribution pipe structure of bottom installation, advances the mode through bilateral symmetry oil and carries the finish to the distribution pipe of transverse arrangement in to evenly flow to the oil groove through the oil outlet array of accurate design. The design is based on ANASYS fluid simulation technology, and the quantity, the aperture and the distance of oil holes are optimized and determined according to the total flow of the oil agent, the pipe diameter of a distributing pipe and other input parameters, so that the flow dev