Spinneret and spinneret

Abstract

The present application discloses a spinneret and a spinneret, comprising: a shell and a spinneret main body arranged in the shell, the shell is provided with an air inlet pipe connected to a first air duct; the spinneret main body comprises a plate body fixed in the shell, a pressing plate fixed at the upper end of the plate body and a filament plate fixed at the upper end of the pressing plate; a liquid outlet groove is arranged at the upper end of the plate body, a solution flow groove is arranged in the plate body, and a liquid inlet connected to the solution flow groove is also arranged on the plate body; a through hole connected to the liquid outlet groove is arranged on the pressing plate, and a protrusion is arranged at the upper end of the pressing plate; a groove corresponding to the protrusion is arranged at the lower end of the filament plate, and when the filament plate is fixed on the pressing plate, the protrusion is located in the groove, and there is a spacing between the upper end of the protrusion and the top wall of the groove, and there is a second air duct between the two sides of the protrusion and the two side walls of the groove; a spinneret hole is arranged on the filament plate. The present application solves the problem of uneven spinning and poor spinning effect of the spinneret in the related art.

Description

Technical Field

[0001] The present application relates to the field of spinning equipment, and in particular to a spinneret and a spinneret. Background Art

[0002] The spinneret body is a commonly used product in the textile and chemical fiber industry. The spinneret includes a feed surface and a discharge surface. The feed surface is provided with a feed hole, and the discharge surface is provided with a discharge hole. The spinneret commonly used at this stage has a structure including: a spinneret body, which is evenly and densely covered with up to thousands of spinneret holes. During the spinning production process, the high-temperature melt of the material is extruded from the spinneret body under a certain pressure, and passes through the spinneret holes to form dense high-temperature melt streams. These melt streams have a high temperature. Under the action of the side wind, they need to be evenly cooled and form stable pre-drawn yarns with a certain degree of crystallinity and pre-orientation within a certain spinning process and a very short time. However, the spinneret in the related art has the problem of uneven spinning and poor spinning effect. Summary of the invention

[0003] The main purpose of the present application is to provide a spinneret and a spinneret to solve the problems of uneven spinning and poor spinning effect of the spinneret in the related art.

[0004] In order to achieve the above-mentioned object, the present application provides a spinneret, which includes: a shell and a spinneret body arranged in the shell, a first air duct is provided between the two sides of the spinneret body and the inner wall of the shell, a wire outlet channel and a liquid inlet channel are provided on the shell, and an air inlet pipe connected to the first air duct is provided on the shell;

[0005] The spinneret body comprises a plate body fixedly arranged in the housing, a pressing plate fixedly arranged at the upper end of the plate body, and a wire outlet plate fixedly arranged at the upper end of the pressing plate; wherein,

[0006] The upper end of the plate body is provided with a liquid outlet groove, the plate body is provided with a solution flow groove, the upper end of the solution flow groove is evenly provided with a plurality of liquid outlets connected with the liquid outlet groove, and the plate body is also provided with a liquid inlet connected with the solution flow groove;

[0007] The pressing plate is provided with a through hole connected to the liquid outlet groove, and the upper end of the pressing plate is provided with a protrusion;

[0008] A groove corresponding to the protrusion is provided at the lower end of the wire outlet plate. When the wire outlet plate is fixed on the pressure plate, the protrusion is located in the groove, and there is a distance between the upper end of the protrusion and the top wall of the groove, and a second air duct is provided between the two sides of the protrusion and the two side walls of the groove; a spinneret hole is provided on the wire outlet plate, and the through hole is coaxially arranged with the spinneret hole; a plurality of air inlets connecting the first air duct and the second air duct are provided on both sides of the spinneret plate.

[0009] Furthermore, a constant temperature loop is provided on both sides of the plate body, the solution flow groove is located within the constant temperature loop, and a constant temperature medium inlet and a constant temperature medium outlet are respectively provided at both ends of the constant temperature loop.

[0010] Furthermore, a sealing groove is arranged around the liquid outlet groove at the upper end of the plate body, and a sealing ring is arranged in the sealing groove.

[0011] Furthermore, the plate body includes a first substrate and a second substrate that are relatively arranged and fixedly connected, and the solution flow groove is opened on a side of the first substrate opposite to the second substrate; the liquid outlet groove is jointly composed of a groove body opened on the first substrate and the second substrate.

[0012] Furthermore, the protrusion is configured as an isosceles trapezoid, and both sides of the protrusion are inclined surfaces inclined upward.

[0013] Furthermore, the spinneret hole is configured as a tapered hole, the diameter of the tapered hole gradually decreases from bottom to top, and the diameter of the lower end of the tapered hole is larger than the diameter of the through hole.

[0014] Furthermore, the through holes are arranged in two groups and distributed on both sides of the protruding portion, the two groups of through holes are arranged in a staggered manner, and the spinneret holes correspond to the through holes one by one.

[0015] Furthermore, the solution flow channel includes a primary channel, a secondary channel, a tertiary channel and a quaternary channel opened on the first substrate from bottom to top; wherein the primary channel is located in the middle of the first substrate, and the liquid inlet is connected to the middle of the primary channel; the secondary channel is provided in two and is located at both ends of the primary channel, and the middle of the secondary channel is connected to the primary channel; both ends of each of the secondary channels are connected to two tertiary channels and are connected to the middle of the tertiary channels; both ends of each of the tertiary channels are connected to two quadruple channels and are connected to the middle of the quadruple channels, and the liquid outlet is provided at the upper end of the quadruple channel.

[0016] Furthermore, the constant temperature circuit includes a first constant temperature tank opened on the first substrate and a second constant temperature tank opened on the second substrate, the first end of the first constant temperature tank is connected to the constant temperature medium inlet, the second end is connected to the first end of the second constant temperature tank, and the second end of the second constant temperature tank is connected to the constant temperature medium outlet.

[0017] Furthermore, the shell includes two U-shaped plates and fixed plates fixed at both ends of the U-shaped plates, and there is a distance between the two U-shaped plates; the upper end of the wire outlet plate is fixedly connected to the U-shaped plate, and the lower ends of the first substrate and the second substrate are respectively fixedly connected to the corresponding U-shaped plates; the first air duct is located between the U-shaped plate and the first substrate and the second substrate; the fixed plate is fixedly connected to the end faces of the first substrate and the second substrate.

[0018] According to another aspect of the present application, a spinneret is provided, comprising a spinneret.

[0019] In the embodiment of the present application, a shell and a spinneret body arranged in the shell are provided, a first air duct is provided between the two sides of the spinneret body and the inner wall of the shell, a wire outlet channel and a liquid inlet channel are provided on the shell, and an air inlet pipe connected to the first air duct is provided on the shell; the spinneret body includes a plate body fixed in the shell, a pressure plate fixed at the upper end of the plate body, and a wire outlet plate fixed at the upper end of the pressure plate; wherein a liquid outlet groove is provided at the upper end of the plate body, a solution flow groove is provided in the plate body, a plurality of liquid outlets connected to the liquid outlet groove are evenly provided at the upper end of the solution flow groove, and a liquid inlet connected to the solution flow groove is also provided on the plate body; a liquid outlet connected to the liquid outlet groove is provided on the pressure plate A through hole is connected, and a protrusion is arranged on the upper end of the pressing plate; a groove corresponding to the protrusion is opened at the lower end of the wire outlet plate, and when the wire outlet plate is fixed on the pressing plate, the protrusion is located in the groove, and there is a spacing between the upper end of the protrusion and the top wall of the groove, and a second air duct is arranged between the two sides of the protrusion and the two side walls of the groove; a spinneret hole is opened on the wire outlet plate, and the through hole is coaxially arranged with the spinneret hole; a plurality of air inlets connecting the first air duct and the second air duct are arranged on both sides of the spinneret plate, so as to realize the purpose of uniformly spraying the solution from the spinneret hole of the wire outlet plate and improving the spinning effect, thereby solving the problem of uneven spinning and poor spinning effect of the spinneret in the related technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The schematic embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0021] Figure 1 is a schematic diagram of an explosion structure according to an embodiment of the present application;

[0022] Figure 2 is a schematic structural diagram of a first substrate according to an embodiment of the present application;

[0023] Figure 3 is a schematic diagram of an assembly structure according to an embodiment of the present application;

[0024] Figure 4 is a schematic diagram of a top view structure according to an embodiment of the present application;

[0025] Figure 5 yes Figure 4 Schematic diagram of the cross-sectional structure of AA;

[0026] Among them, 50 U-shaped plate, 51 circular hole, 52 fixed plate, 53 air inlet, 54 wire outlet plate, 55 spinneret hole, 56 protrusion, 57 through hole, 58 pressing plate, 59 wire outlet channel, 60 air inlet pipe, 61 second substrate, 62 first substrate, 63 liquid outlet groove, 64 groove, 65 solution flow groove, 66 baffle, 67 shell, 68 plate body, 69 second constant temperature tank, 70 first air duct, 71 sealing groove, 72 first constant temperature tank, 73 liquid inlet, 74 secondary groove, 75 fourth groove, 76 liquid outlet, 77 third groove, 78 first groove, 79 second air duct. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so as to describe the embodiments of the present application described herein.

[0029] In this application, the terms "upper", "lower", "inner", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0030] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0031] In addition, the terms "disposed", "provided with", "connected", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0032] In addition, the term "plurality" shall mean two or more.

[0033] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0034] like Figures 1 to 5 As shown, the embodiment of the present application provides a spinneret, which includes: a shell 67 and a spinneret body disposed in the shell 67, a first air duct 70 is provided between the two sides of the spinneret body and the inner wall of the shell 67, a wire outlet channel 59 and a liquid inlet channel are provided on the shell 67, and an air inlet pipe 60 connected to the first air duct 70 is provided on the shell 67;

[0035] The spinneret body includes a plate body 68 fixed in a housing 67, a pressing plate 58 fixed on the upper end of the plate body 68, and a spinning plate 54 fixed on the upper end of the pressing plate 58;

[0036] The upper end of the plate body 68 is provided with a liquid outlet groove 63, and a solution flow groove 65 is provided in the plate body 68. The upper end of the solution flow groove 65 is evenly provided with a plurality of liquid outlets 76 connected with the liquid outlet groove 63. The plate body 68 is also provided with a liquid inlet 73 connected with the solution flow groove 65.

[0037] The pressing plate 58 is provided with a through hole 57 communicating with the liquid outlet groove 63, and the upper end of the pressing plate 58 is provided with a protrusion 56;

[0038] A groove 64 corresponding to the protrusion 56 is provided at the lower end of the wire outlet plate 54. When the wire outlet plate 54 is fixed on the pressing plate 58, the protrusion 56 is located in the groove 64, and there is a spacing between the upper end of the protrusion 56 and the top wall of the groove 64, and a second air duct 79 is provided between the two sides of the protrusion 56 and the two side walls of the groove 64; a spinneret hole 55 is provided on the wire outlet plate 54, and a through hole 57 is coaxially arranged with the spinneret hole 55; a plurality of air inlets 53 connecting the first air duct 70 and the second air duct 79 are provided on both sides of the spinneret.

[0039] In this embodiment, the upper and lower ends of the spinneret body are fixedly connected to the upper and lower ends of the housing 67, respectively. The spinneret body and the housing 67 have two first air ducts 70, which are respectively located on the left and right sides of the spinneret body, and the two first air ducts 70 have the same size to ensure the same air intake. The wire outlet channel 59 and the liquid inlet channel on the housing 67 are used for wire outlet and solution inlet, respectively. The wire outlet channel 59 is arranged in a long strip shape. The first air inlet pipe 60 on the housing 67 is arranged in two groups and corresponds to the left and right first air ducts 70, respectively. Each group of first air inlet pipes 60 is arranged in two groups and symmetrically distributed at the two ends of the housing 67. The liquid outlet groove 63 is opened at the upper end of the plate body 68 and is arranged in a long strip shape, corresponding to the wire outlet channel 59 on the housing 67. In order to ensure the sealing of the liquid outlet groove 63, a sealing groove 71 is arranged around the liquid outlet groove 63 at the upper end of the plate body 68, and a sealing ring is arranged in the sealing groove 71. The solution flow groove 65 is opened inside the plate body 68 and is connected with the liquid inlet 73. The upper end of the solution flow groove 65 is connected with the liquid outlet groove 63, so that the solution flows in from the liquid inlet 73 and enters the liquid outlet groove 63 after flowing through the solution flow groove 65. The liquid outlets 76 on the solution flow groove 65 are evenly distributed at the bottom of the liquid outlet groove 63, so that the solution can flow evenly into the liquid outlet groove 63.

[0040] Since a pressing plate 58 is pressed on the plate body 68, a through hole 57 connected to the liquid outlet groove 63 is opened on the pressing plate 58. The through hole 57 is vertically arranged, so that the solution entering the liquid outlet groove 63 flows into the through hole 57 of the pressing plate 58 under the action of the conveying pressure of the liquid supply device and flows upward out of the protrusion 56. Since there is a spacing between the upper end of the protrusion 56 and the wire outlet plate 54, the solution flowing out of the protrusion 56 can be located within the spacing. At the same time, external hot air flows into the second air duct 79 through the first air inlet pipe 60, the first air duct 70 and the air inlet 53 on both sides of the wire outlet plate 54 in sequence. The second air duct 79 is located on both sides of the protrusion 56, that is, the second air duct 79 is connected to the spacing between the upper end of the protrusion 56 and the top wall of the groove 64. After the hot air with wind pressure contacts with the solution located in the spacing, the solution is forced to enter the spinneret hole 55 of the wire outlet plate 54, and is sprayed out from the spinneret hole 55 to form a silk thread. This embodiment achieves the purpose of uniformly ejecting the solution from the spinneret holes 55 of the spinneret plate 54, thereby improving the spinneret effect, thereby solving the problem of uneven spinneret and poor spinneret effect in the spinneret plate in the related art.

[0041] like Figures 1 to 5 As shown, the plate body 68 includes a first substrate 62 and a second substrate 61 that are arranged opposite to each other and fixedly connected, and the solution flow groove 65 is opened on the side of the first substrate 62 opposite to the second substrate 61; the liquid outlet groove 63 is jointly composed of the groove bodies opened on the first substrate 62 and the second substrate 61.

[0042] Specifically, it should be noted that the first substrate 62 and the second substrate 61 are arranged in a rectangular shape as a whole, and the plate body 68 is formed by splicing the first substrate 62 and the second substrate 61 and fixing them with bolts. The upper ends of the first substrate 62 and the second substrate 61 are both provided with semi-enclosed grooves, so that when the plate body 68 is formed, the two semi-enclosed grooves can jointly form a liquid outlet groove 63.

[0043] like Figures 1 to 5 As shown, the protrusion 56 is set to be an isosceles trapezoid, and the two sides of the protrusion 56 are inclined surfaces inclined upward. Since the hot air flows in from the horizontal direction through the air inlet 53, and the solution flows out from the upper end of the protrusion 56, in order to allow the solution to be sprayed upward from the spinneret hole 55 on the filament outlet plate 54, the two sides of the protrusion 56 are set to be inclined surfaces, so that the hot air is redirected upward after passing through the second air duct 79 horizontally, so that the solution is sprayed vertically from the spinneret hole 55. The second air ducts 79 on both sides of the protrusion 56 are also the same size to ensure that the air volume on both sides of the protrusion 56 is uniform.

[0044] like Figures 1 to 5 As shown, the spinneret hole 55 is set as a tapered hole, the diameter of the tapered hole gradually decreases from bottom to top, and the diameter of the lower end of the tapered hole is larger than the diameter of the through hole 57. The solution with hydraulic pressure and wind pressure enters the spinneret hole 55. Since the spinneret hole 55 is a tapered hole, it is affected by the reduction of the cross-sectional area, so that the flow rate of the solution increases, thereby ensuring that the solution sprayed from the spinneret hole 55 stably forms filaments.

[0045] like Figures 1 to 5 As shown, the through holes 57 are arranged in two groups and are distributed on both sides of the protrusion 56. The two groups of through holes 57 are staggered, and the spinneret holes 55 correspond to the through holes 57 one by one. The two groups of through holes 57 make the sprayed silk also into two groups. The staggered arrangement makes the two groups of silk threads fully cover the non-woven fabric.

[0046] like Figures 1 to 5 As shown, the solution flow channel 65 includes a primary channel 78, a secondary channel 74, a tertiary channel 77 and a quaternary channel 75 which are opened on the first substrate 62 from bottom to top; wherein, the primary channel 78 is located in the middle of the first substrate 62, and the liquid inlet 73 is connected to the middle of the primary channel 78; the secondary channel 74 is set as two and is located at both ends of the primary channel 78, and the middle of the secondary channel 74 is connected to the primary channel 78; both ends of each secondary channel 74 are connected to two tertiary channels 77 and are connected to the middle of the tertiary channel 77; both ends of each tertiary channel 77 are connected to two quaternary channels 75 and are connected to the middle of the quaternary channel 75, and the liquid outlet 76 is provided at the upper end of the quaternary channel 75.

[0047] Specifically, it should be noted that the primary groove 78, the secondary groove 74, the tertiary groove 77, and the quaternary groove 75 are all U-shaped grooves. This design makes the flow of the solution more uniform, that is, the solution entering the liquid outlet groove 63 is evenly distributed, thereby ensuring the uniformity of the spinning process.

[0048] like Figures 1 to 5 As shown, since the temperature of the solution is required to be high during the spinning process, a constant temperature circuit is also provided on both sides of the plate body 68, and the solution flow groove 65 is located in the constant temperature circuit. The two ends of the constant temperature circuit are respectively provided with a constant temperature medium inlet and a constant temperature medium outlet. The constant temperature circuit includes a first constant temperature tank 72 provided on the first substrate 62 and a second constant temperature tank 69 provided on the second substrate 61. The first end of the first constant temperature tank 72 is connected to the constant temperature medium inlet, and the second end is connected to the first end of the second constant temperature tank 69. The second end of the second constant temperature tank 69 is connected to the constant temperature medium outlet. Baffles 66 for closing the corresponding first constant temperature tank 72 and the second constant temperature tank 69 are fixed on both the first substrate 62 and the second substrate 61. The constant temperature medium can be constant temperature water, and the constant temperature water flows through the U-shaped constant temperature circuit to achieve constant temperature of the solution located in the plate body 68. The baffle 66 is provided with circular holes 51 corresponding to the constant temperature medium inlet and the constant temperature medium outlet.

[0049] like Figures 1 to 5 As shown, the shell 67 includes two U-shaped plates 50 and fixed plates 52 fixed at both ends of the U-shaped plates 50, and there is a distance between the two U-shaped plates 50; the upper end of the wire outlet plate 54 is fixedly connected to the U-shaped plate 50, and the lower ends of the first substrate 62 and the second substrate 61 are respectively fixedly connected to the corresponding U-shaped plates; the first air duct 70 is located between the U-shaped plate 50 and the first substrate 62 and the second substrate 61; the fixed plate 52 is fixedly connected to the end faces of the first substrate 62 and the second substrate 61.

[0050] According to another aspect of the present application, a spinneret is provided, comprising a spinneret.

[0051] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Within the spirit and principle of the present application, any modification, equivalent replacement, improvement, etc. made shall be included in the protection scope of the present application.

Claims

1. A spinneret, characterized in that: include: A shell and a spinneret body arranged in the shell, a first air duct is provided between the two sides of the spinneret body and the inner wall of the shell, a wire outlet channel and a liquid inlet channel are provided on the shell, and an air inlet pipe connected to the first air duct is provided on the shell; The spinneret body comprises a plate body fixedly arranged in the housing, a pressing plate fixedly arranged at the upper end of the plate body, and a wire outlet plate fixedly arranged at the upper end of the pressing plate; wherein, The upper end of the plate body is provided with a liquid outlet groove, the plate body is provided with a solution flow groove, the upper end of the solution flow groove is evenly provided with a plurality of liquid outlets connected with the liquid outlet groove, and the plate body is also provided with a liquid inlet connected with the solution flow groove; The pressing plate is provided with a through hole connected to the liquid outlet groove, and the upper end of the pressing plate is provided with a protrusion; A groove corresponding to the protruding portion is provided at the lower end of the wire outlet plate. When the wire outlet plate is fixed on the pressing plate, the protruding portion is located in the groove, and there is a spacing between the upper end of the protruding portion and the top wall of the groove, and a second air duct is provided between the two sides of the protruding portion and the two side walls of the groove; a spinneret hole is provided on the wire outlet plate, and the through hole is arranged coaxially with the spinneret hole; a plurality of air inlets connecting the first air duct and the second air duct are provided on both sides of the spinneret plate; The protrusion is configured as an isosceles trapezoid, and both sides of the protrusion are inclined surfaces inclined upward; A constant temperature loop is also provided on both sides of the plate body, the solution flow groove is located inside the constant temperature loop, and a constant temperature medium inlet and a constant temperature medium outlet are respectively provided at both ends of the constant temperature loop; The plate body comprises a first substrate and a second substrate which are arranged opposite to each other and fixedly connected, and the solution flow groove is provided on a side of the first substrate opposite to the second substrate; the liquid outlet groove is formed by the groove bodies provided on the first substrate and the second substrate; The spinneret hole is set as a tapered hole, the diameter of the tapered hole gradually decreases from bottom to top, and the diameter of the lower end of the tapered hole is larger than the diameter of the through hole; The through holes are arranged in two groups and distributed on both sides of the protruding portion, the two groups of through holes are arranged in a staggered manner, and the spinneret holes correspond to the through holes one by one; The solution flow channel includes a primary channel, a secondary channel, a tertiary channel and a quaternary channel opened on the first substrate from bottom to top; wherein, The primary groove is located in the middle of the first substrate, and the liquid inlet is connected to the middle of the primary groove; The secondary tanks are provided in two numbers and are located at both ends of the primary tank, and the middle part of the secondary tank is connected to the primary tank; Both ends of each of the secondary tanks are connected to two tertiary tanks and are connected to the middle of the tertiary tank; Both ends of each tertiary tank are connected to two quaternary tanks and are connected to the middle of the quaternary tank. The liquid outlet is arranged at the upper end of the quaternary tank.

2. The spinneret according to claim 1, characterized in that The constant temperature circuit includes a first constant temperature tank opened on the first substrate and a second constant temperature tank opened on the second substrate, wherein the first end of the first constant temperature tank is connected to the constant temperature medium inlet, the second end of the first constant temperature tank is connected to the first end of the second constant temperature tank, and the second end of the second constant temperature tank is connected to the constant temperature medium outlet.

3. The spinneret according to claim 1, characterized in that The housing comprises two U-shaped plates and fixed plates fixed at both ends of the U-shaped plates, and there is a distance between the two U-shaped plates; The upper end of the wire outlet plate is fixedly connected to the U-shaped plate, and the lower ends of the first base plate and the second base plate are respectively fixedly connected to the corresponding U-shaped plates; The first air duct is located between the U-shaped plate and the first substrate and the second substrate; The fixing plate is fixedly connected to the end surfaces of the first substrate and the second substrate.

4. A spinning machine, characterized in that: The invention comprises a spinneret as claimed in any one of claims 1 to 3.

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