Network nozzle device for producing profiled fibers

Abstract

The utility model belongs to the technical field of interlaced nozzles, and discloses an interlaced nozzle device for producing profiled fibers, which comprises a base and a nozzle body, the nozzle body is arranged on one side of the base, the surface of one side, far away from the base, of the nozzle body is provided with a yarn passing channel, and two sides of the yarn passing channel are symmetrically provided with air injection holes penetrating through the nozzle body. A vent groove is communicated between one end of each air spraying hole and the silk passing channel, the other end of each air spraying hole is connected with an air inlet hole in the base in a matched mode, and the vent grooves incline towards the silk bundle outlet end of the silk passing channel. Compressed air is obliquely blown to running tows from the two sides of the tow passing channel, the interlacing degree of fibers can be improved, the tows can be prevented from being damaged in the interlacing process, the section uniformity of profiled fibers is improved, and cost is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of network nozzles, and in particular relates to a network nozzle device for producing special-shaped fibers. Background Art

[0002] Polyester FDY is a fully stretched yarn produced by a one-step process. Since it cannot be twisted during high-speed winding, an air network nozzle is installed after the hot roller to make the monofilaments cohesive and winding, increasing the smoothness of the yarn. It is not easy to break and produce hair during the weaving process, which can improve the efficiency of post-processing and even save or reduce the purpose of sizing. With the rapid growth of my country's economy, the pursuit of comfort, high-end, health care and nature has become a new fashion. Special-shaped cross-section fibers are deeply loved by consumers due to their unique properties. Special-shaped fibers have also become products that manufacturers are competing to develop. Special-shaped fibers are made of non-circular spinnerets. Due to the particularity of their cross-sections, the network requirements are relatively high during the production process. It is necessary to ensure the network degree and avoid the damage of the monofilaments to produce hair. In the prior art, a network nozzle is provided with an air jet hole in the middle of the wire passage, and the direction of the air jet hole is perpendicular to the running wire. The network degree of the fiber is usually improved by increasing the compressed air pressure in the air jet hole. Since the compressed air jet speed ejected from the air jet hole is too high, the collision between the wire bundle and the nozzle is too intense, and some single wires in the wire bundle are damaged to produce hairy wires, resulting in a decrease in the strength and elongation of the fiber and poor cross-sectional uniformity, which affects the performance of the post-processing fabric. Utility Model Content

[0003] The utility model aims at the deficiencies in the background technology and provides a network nozzle device for producing special-shaped fibers. The network nozzle is used to perform oblique double spraying from both sides of the fibers to network the fibers, thereby reducing tow damage and improving the cross-sectional uniformity and weaving performance of the special-shaped fibers.

[0004] To achieve the above purpose, the technical solution of the utility model is as follows:

[0005] A network nozzle device for producing special-shaped fibers, characterized in that it includes a base and a nozzle body, wherein the nozzle body is arranged on one side of the base, and a wire passing channel is provided on the surface of the side away from the base, and jet holes penetrating the nozzle body are symmetrically arranged on both sides of the wire passing channel, an air vent is connected to the wire passing channel at one end of each of the jet holes, and the other end is connected to an air inlet provided on the base, and the air vent is inclined toward the wire bundle outlet end of the wire passing channel.

[0006] Preferably, the angle between the ventilation groove and the wire passage is 45-60°.

[0007] Preferably, the two jet holes are symmetrically distributed on both sides of the air inlet hole, and the aperture of each jet hole on the side close to the air inlet hole is 1 / 4 of the aperture of the air inlet hole.

[0008] Preferably, the jet hole is a stepped hole, comprising a hole body A and a hole body B, wherein one end of the hole body A is connected to the vent groove, and the other end is connected to the hole body B, and the inner diameter of the hole body A is smaller than the inner diameter of the hole body B.

[0009] Preferably, the wire passage is an arc-shaped groove, and its wire bundle outlet end is trumpet-shaped.

[0010] Preferably, the base is provided with wire guides at both ends of the wire passing channel, and each of the wire guides is provided with a wire guiding groove located on the same central axis as the wire passing channel.

[0011] Preferably, a mounting groove is provided on the base, the nozzle body is embedded in the mounting groove, and its outer surface is flush with the outer surface of the base.

[0012] Preferably, the base is provided with major arc grooves at the edges on both sides of the mounting groove, and the major arc grooves are combined with the minor arc grooves provided at the edges on both sides of the nozzle body to form a circular groove, and the inner thread of the circular groove is connected with screws for assembling and connecting the base and the nozzle body.

[0013] Preferably, a cover plate is provided on a side of the nozzle body away from the base, and the cover plate is detachably connected to the base.

[0014] Preferably, a fixing block is provided on one side of the cover plate, and the fixing block is cooperatively connected with a fixing slot provided on the base.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] (1) The utility model adopts a side oblique double-spray interlacing method, which blows compressed air obliquely from both sides of the thread passage to the running thread bundle, which can not only improve the fiber interlacing degree, but also prevent the thread bundle from being damaged during the interlacing process, and improve the uniformity of the fiber profile cross section;

[0017] (2) The utility model has low gas consumption. The pressure provided by the compressed air only needs 60% of the existing pressure to achieve a network node with good strength. It will not cause damage to the single filaments in the tow, thus saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features, objectives and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings.

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the connection structure between the base and the nozzle body of the utility model;

[0021] Figure 3 This is a schematic diagram of the base structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the utility model when viewed from above;

[0023] Figure 5 This is a schematic diagram of the nozzle structure of the utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the nozzle body of the utility model when viewed from above;

[0025] Figure 7 This is a schematic diagram of the cover structure of the utility model;

[0026] In the figure: 1, base, 101, fixing slot, 2, nozzle body, 3, wire passing channel, 4, jet hole, 401, hole body A, 402, hole body B, 5, ventilation groove, 6, air inlet hole, 7, wire guide, 701, wire guide groove, 8, mounting groove, 9, superior arc-shaped groove, 10, inferior arc-shaped groove, 11, screw, 12, cover plate, 1201, fixing block, 13, transition cavity, 14, notch. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] In the description of the present invention, it should be understood that the terms "middle", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] like Figure 2As shown, a network nozzle device for producing special-shaped fibers includes a base 1 and a nozzle body 2. The nozzle body is arranged on one side of the base and a wire passing channel 3 is provided on the surface of the side away from the base. The wire passing channel is located in the middle of the nozzle body and is an arc-shaped groove, and its wire bundle outlet end is trumpet-shaped. The base is provided with wire guides 7 at both ends of the wire passing channel, and each wire guide is provided with a wire guide groove 701 located on the same central axis as the wire passing channel. In order to facilitate the disassembly and assembly of the wire guide, an external thread is provided at the end of the wire guide, and the external thread is connected with the internal thread provided on the base. The arc-shaped wire guide groove design on the wire guide can prevent the wire strip from shaking left and right. This setting can improve the stability of the wire strip running in the nozzle. Combined with Figure 3 and Figure 4 As shown, a mounting groove 8 is provided on the base, and the nozzle body is embedded in the mounting groove and its outer surface is flush with the outer surface of the base. In order to facilitate the removal of the nozzle body from the mounting groove, notches 14 are provided on the opposite side walls of the mounting groove. The base is provided with major arc grooves 9 at the edges of the mounting groove on the opposite sides, and the major arc grooves and the minor arc grooves 10 provided at the edges of the nozzle body on the opposite sides are combined into a circular groove. The screws 11 for assembling and connecting the base and the nozzle body are connected in the circular groove. The head of the screw clamps the minor arc groove part of the nozzle body between it and the base. In order to further improve the stability of the connection structure, a gasket can be installed between the screw head and the nozzle body and the base.

[0031] like Figure 2 , Figure 3 and Figure 5 As shown, jet holes 4 penetrating the nozzle body are symmetrically arranged on both sides of the wire passage. A ventilation groove 5 is connected to the wire passage at one end of each jet hole, and the other end is connected to the air inlet hole 6 arranged on the base. The ventilation groove is inclined toward the outlet end of the wire bundle of the wire passage, and the angle between the ventilation groove and the wire passage is 45-60°. The compressed air jet is inclined from both sides of the wire passage to the outlet end of the wire bundle, which effectively reduces the damage of the wire bundle and improves the cross-sectional uniformity and weaving performance of the special-shaped fiber. The two jet holes are symmetrically distributed on both sides of the air inlet, and the aperture of each jet hole close to the air inlet (aperture of hole body B) is 1 / 4 of the aperture of the air inlet. Figure 4 and Figure 6 As shown, the jet hole is a stepped hole, including a hole body A401 and a hole body B402. One end of the hole body A is connected to the ventilation groove, and the other end is connected to the hole body B, and its inner diameter is smaller than the inner diameter of the hole body B. The depths of the hole body A and the hole body B are respectively 1 / 2 of the thickness of the nozzle body. A transition cavity 13 is provided between the mounting groove of the base and the air inlet hole. The transition cavity connects the two jet holes with the air inlet hole. In this embodiment, the ventilation groove is a rectangular parallelepiped groove.

[0032] like Figure 1 , Figure 2 and Figure 7As shown, a cover plate 12 is provided on the side of the nozzle body away from the base, and the cover plate is detachably connected to the base. The length of the cover plate is 2 / 3 of the length of the base. A fixing block 1201 is provided on one side of the cover plate, and the fixing block is connected with a fixing slot 101 provided on the base. The shape and size of the fixing block are consistent with the shape and size of the fixing slot. The wire passage is located between the cover plate and the base, and the wire strip passes through the wire passage when the thread is produced.

[0033] The working principle of the utility model is as follows:

[0034] The compressed air enters the transition cavity 13 of the base 1, the two holes B402 and the hole A401 in the nozzle body 2 from the air inlet 6 on the base 1, and then blows obliquely to the wire running in the wire passage 3 through the two ventilation grooves 5 on both sides of the wire passage 3 (combined with the Figure 5 The compressed air is obliquely sprayed from both sides of the tow channel along the tow direction, and the silk strips are entangled and intertwined through the compressed air blown obliquely on both sides to form network nodes. The network compressed air of the utility model is blown obliquely from both sides of the tow to the running tow. Under the action of the network compressed air on both sides, the fluid in the silk channel is turbulent, and the monofilaments in the running tow are easily loosened and entangled with each other to form uniform and high-strength network nodes.

[0035] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model.

Claims

1. A network nozzle device for producing special-shaped fibers, characterized in that: It includes a base and a nozzle body, the nozzle body is arranged on one side of the base, and a wire passing channel is opened on the surface of the side away from the base, and jet holes that penetrate the nozzle body are symmetrically arranged on both sides of the wire passing channel, one end of each jet hole is connected to the wire passing channel with a ventilation groove, and the other end is matched with the air inlet hole arranged on the base, and the ventilation groove is inclined toward the wire bundle outlet end of the wire passing channel.

2. A network nozzle device for producing shaped fibers according to claim 1, characterized in that: The angle between the ventilation groove and the wire passage is 45-60°.

3. A network nozzle device for producing special-shaped fibers according to claim 1, characterized in that: The two jet holes are symmetrically distributed on both sides of the air inlet hole, and the aperture of each jet hole close to the air inlet hole is 1 / 4 of the aperture of the air inlet hole.

4. A network nozzle device for producing special-shaped fibers according to claim 1 or 3, characterized in that: The jet hole is a stepped hole, comprising a hole body A and a hole body B. One end of the hole body A is connected to the vent groove, and the other end is connected to the hole body B, and the inner diameter of the hole body A is smaller than the inner diameter of the hole body B.

5. The network nozzle device for producing special-shaped fibers according to claim 1, characterized in that: The wire passage is an arc-shaped groove, and its wire bundle outlet end is trumpet-shaped.

6. A network nozzle device for producing special-shaped fibers according to claim 1, characterized in that: The base is provided with wire guides at both ends of the wire passing channel, and each of the wire guides is provided with a wire guiding groove located on the same central axis as the wire passing channel.

7. A network nozzle device for producing special-shaped fibers according to claim 1, characterized in that: The base is provided with a mounting groove, the nozzle body is embedded in the mounting groove, and the outer surface of the nozzle body is flush with the outer surface of the base.

8. A network nozzle device for producing special-shaped fibers according to claim 7, characterized in that: The base is provided with major arc grooves at the edges of the mounting groove on both sides, and the major arc grooves are combined with the minor arc grooves at the edges of the nozzle body on both sides to form a circular groove, and the circular groove is internally threaded with screws for assembling and connecting the base and the nozzle body.

9. The network nozzle device for producing special-shaped fibers according to claim 1, characterized in that: A cover plate is provided on one side of the nozzle body away from the base, and the cover plate is detachably connected to the base.

10. A network nozzle device for producing special-shaped fibers according to claim 9, characterized in that: A fixing block is provided on one side of the cover plate, and the fixing block is matched and connected with a fixing slot provided on the base.

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