A spinneret

Abstract

The present application discloses a spinneret, which includes: a machine body, a liquid supply system, a constant temperature system, a spinneret plate and a conveyor belt system provided on the machine body; a working platform is arranged on the machine body; the liquid supply system includes: a liquid storage barrel, a filter connected to the liquid storage barrel through a pipeline, and a pump body connected to the filter through a pipeline. The output end of the pump body is connected to the solution inlet of the spinneret plate, and a heating tape is wrapped around the liquid storage barrel and the filter; the constant temperature system includes: a constant temperature bath, which is provided with a water outlet and a water inlet. The water outlet is communicated with the heat preservation water inlet of the spinneret plate through a water extraction pump, and the water inlet is communicated with the heat preservation water outlet of the spinneret plate; the conveyor belt system includes: conveyor rollers, a conveyor belt is sleeved on the four conveyor rollers, and an exhaust fan is arranged above the conveyor belt. The present application solves the problems that the spinning effect of the spinneret in the related art is poor and it is difficult to stably control the temperature of the solution in the spinneret plate.

Description

Technical Field

[0001] This application relates to the field of spinning equipment, and more particularly, to a spinning machine. Background Art

[0002] Non-woven fabric, also known as non-woven cloth, is composed of oriented or random fibers and is a new generation of environmental protection material. It has the characteristics of moisture-proof, breathable, flexible, light in weight, non-flammable, easy to decompose, non-toxic, non-irritating, rich in colors, low in price, recyclable, etc. For example, it is mostly made of polypropylene (PP material) pellets as raw materials and is produced by a continuous one-step method of high-temperature melting, spinning, laying, hot pressing and coiling. It is called cloth because of its appearance and certain properties. In the production process of non-woven fabric, spinning operation is required, but the spinning effect of the spinning machine in the related technology is poor, and it is difficult to stabilize the temperature of the solution in the spinneret. Summary of the Invention

[0003] The main purpose of this application is to provide a spinning machine to solve the problems that the spinning machine in the related technology has poor spinning effect and it is difficult to stabilize the temperature of the solution in the spinneret.

[0004] To achieve the above object, this application provides a spinning machine, which includes: a machine body, and a liquid supply system, a constant temperature system, a spinneret and a conveyor belt system arranged on the machine body; wherein, a working platform is arranged on the machine body, the conveyor belt system and the liquid supply system are respectively located at the upper and lower ends of the working platform, and the spinneret is arranged on the working platform; the liquid supply system includes: a liquid storage tank, a filter connected to the liquid storage tank through a pipeline, and a pump body connected to the filter through a pipeline, the output end of the pump body is connected to the solution inlet of the spinneret, and heating tapes are wrapped around the liquid storage tank and the filter; the constant temperature system includes: a constant temperature bath, an outlet and an inlet are arranged on the constant temperature bath, the outlet is communicated with the heat preservation water inlet of the spinneret through a water pump, and the inlet is communicated with the heat preservation water outlet of the spinneret; the conveyor belt system includes: conveying rollers arranged on the machine body, four conveying rollers are arranged in a square distribution, a conveyor belt is sleeved on the four conveying rollers, and an exhaust fan is arranged above the conveyor belt.

[0005] Further, an inlet and a return port are arranged on the liquid storage tank, the inlet is connected to a three-way reversing valve A through pipeline A, one end of the three-way reversing valve A is provided with a first liquid discharge port, and the other end is connected to the filter through pipeline B;

[0006] The output end of the pump body is connected to a three-way reversing valve B through pipeline C, one end of the three-way reversing valve B is connected to the return port of the liquid storage tank through pipeline D, the other end is connected to a three-way reversing valve C through pipeline E, one end of the three-way reversing valve C is provided with a second liquid discharge port, and the other end is connected to the solution inlet of the spinneret.

[0007] Furthermore, first temperature sensors are provided on pipeline B, pipeline D, and pipeline E; second temperature sensors are provided at the output ends of the filter and the pump body, and a heating rod is further provided at the output end of the pump body.

[0008] Furthermore, the conveyor belt system further includes a photoelectric sensor and a deviation rectifier provided on the machine body. The photoelectric sensor is used to monitor the deviation amount of the conveyor belt and is electrically connected to the deviation rectifier, and the deviation rectifier is used to rectify the deviation of the conveyor belt.

[0009] Furthermore, a reciprocating motion mechanism is provided on the working platform, and the output end of the reciprocating motion mechanism is connected to the spinneret plate;

[0010] The spinneret plate includes: a housing fixed to the output end of the reciprocating motion mechanism and a spinneret plate body provided inside the housing. There is a first air duct between both sides of the spinneret plate body and the inner wall of the housing. The housing is provided with a wire outlet channel and a liquid inlet channel, and the housing is provided with an air inlet pipe communicating with the first air duct;

[0011] The spinneret plate body includes a plate body fixed inside the housing, a pressing plate fixed to the upper end of the plate body, and a wire outlet plate fixed to the upper end of the pressing plate; wherein,

[0012] A liquid outlet groove is provided at the upper end of the plate body, and a solution flow groove is provided inside the plate body. A plurality of liquid outlet openings communicating with the liquid outlet groove are uniformly provided at the upper end of the solution flow groove, and a liquid inlet opening communicating with the solution flow groove is further provided on the plate body. The liquid inlet opening is connected to the output end of the pump body;

[0013] A through hole communicating with the liquid outlet groove is provided on the pressing plate, and a protruding portion is provided at the upper end of the pressing plate;

[0014] 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 to the pressing plate, the protruding portion is located inside the groove, and there is a distance between the upper end of the protruding portion and the top wall of the groove, and there is a second air duct between both sides of the protruding portion and the two side walls of the groove; a wire spraying hole is provided on the wire outlet plate, and the through hole and the wire spraying hole are coaxially arranged; A plurality of air inlets communicating the first air duct and the second air duct are provided on both sides of the spinneret plate.

[0015] Furthermore, heat preservation circuits are further provided on both sides of the plate body. The solution flow groove is located inside the heat preservation circuits. The two ends of the heat preservation circuits are respectively provided as a heat preservation water inlet and a heat preservation water outlet, and are respectively connected to a water pump and a constant temperature bath.

[0016] Furthermore, the plate body includes a first substrate and a second substrate which are oppositely arranged and fixedly connected, and the solution flow groove is formed on one side of the first substrate relative to the second substrate; the liquid outlet groove is jointly formed by grooves formed on the first substrate and the second substrate; the protruding part is arranged as an isosceles trapezoid, and both sides of the protruding part are inclined upward slopes.

[0017] Furthermore, the spinneret hole is arranged 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.

[0018] Furthermore, the through holes are arranged in two groups and distributed on both sides of the protruding part, the two groups of through holes are arranged in a staggered manner, and the spinneret holes correspond to the through holes one by one.

[0019] Furthermore, the solution flow groove includes a first-stage groove, a second-stage groove, a third-stage groove and a fourth-stage groove which are formed on the first substrate from bottom to top; wherein, the first-stage groove is located in the middle of the first substrate, and the liquid inlet is communicated with the middle of the first-stage groove; the second-stage grooves are arranged in two and located at both ends of the first-stage groove, and the middle of the second-stage grooves is communicated with the first-stage groove; both ends of each second-stage groove are communicated with two third-stage grooves and connected to the middle of the third-stage grooves; both ends of each third-stage groove are communicated with two fourth-stage grooves and connected to the middle of the fourth-stage grooves, and the liquid outlet is arranged at the upper end of the fourth-stage groove.

[0020] Furthermore, the heat preservation loop includes a first heat preservation groove formed on the first substrate and a second heat preservation groove formed on the second substrate. The first end of the first heat preservation groove is communicated with the heat preservation medium inlet, the second end is communicated with the first end of the second heat preservation groove, and the second end of the second heat preservation groove is communicated with the heat preservation medium outlet.

[0021] In the embodiment of the present application, a machine body is provided, and a liquid supply system, a constant temperature system, a spinneret plate, and a conveyor belt system are arranged on the machine body; wherein, a working platform is arranged on the machine body, the conveyor belt system and the liquid supply system are respectively located at the upper and lower ends of the working platform, and the spinneret plate is arranged on the working platform; the liquid supply system includes: a liquid storage bucket, a filter connected to the liquid storage bucket through a pipeline, and a pump body connected to the filter through a pipeline, the output end of the pump body is connected to the solution inlet of the spinneret plate, and heating tapes are wrapped around the liquid storage bucket and the filter; the constant temperature system includes: a constant temperature tank, a water outlet and a water inlet are arranged on the constant temperature tank, the water outlet is communicated with the heat preservation water inlet of the spinneret plate through a water pump, and the water inlet is communicated with the heat preservation water outlet of the spinneret plate; the conveyor belt system includes: conveyor rollers arranged on the machine body, the conveyor rollers are set to be four and are distributed in a square shape, a conveyor net belt is sleeved on the four conveyor rollers, and an exhaust fan is arranged above the conveyor net belt. The purpose of keeping the solution warm and heated during the flow process of the solution is achieved, thereby realizing the technical effect that the temperature of the solution during spinning meets the use requirements, and further solving the problem that the spinning effect of the spinneret in the related art is poor and it is difficult to stabilize the temperature of the solution in the spinneret plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting a part of the present application are used to provide a further understanding of the present application, making other features, objects, and advantages of the present application more obvious. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings:

[0023] Figure 1 is a schematic side view structure diagram of the spinneret according to the embodiment of the present application;

[0024] Figure 2 is a schematic structure diagram of the liquid supply system according to the embodiment of the present application;

[0025] Figure 3 is a schematic structure diagram of the constant temperature system according to the embodiment of the present application;

[0026] Figure 4 is an exploded structure diagram of the spinneret according to the embodiment of the present application;

[0027] Figure 5 is a schematic structure diagram of the first substrate according to the embodiment of the present application;

[0028] Figure 6 is an assembled structure diagram of the spinneret according to the embodiment of the present application;

[0029] Figure 7 is a schematic top view structure diagram of the spinneret according to the embodiment of the present application;

[0030] Figure 8 is Figure 7 the schematic cross-sectional structure diagram of A-A in

[0031] Among them, 50 is the U-shaped plate, 51 is the round hole, 52 is the fixing plate, 53 is the air inlet, 54 is the wire outlet plate, 55 is the spinneret hole, 56 is the protruding part, 57 is the through hole, 58 is the pressing plate, 59 is the wire outlet channel, 60 is the air inlet pipe, 61 is the second substrate, 62 is the first substrate, 63 is the liquid outlet tank, 64 is the groove, 65 is the solution flow tank, 66 is the baffle, 67 is the housing, 68 is the plate body, 69 is the second heat preservation tank, 70 is the first air duct, 71 is the sealing groove, 72 is the first heat preservation tank, 73 is the liquid inlet, 74 is the secondary tank, 75 is the quaternary tank, 76 is the liquid outlet, 77 is the tertiary tank, 78 is the primary tank, 79 is the second air duct, 80 is the machine body, 81 is the deviation rectifier, 82 is the conveying roller, 83 is the exhaust fan, 85 is the spinneret plate, 86 is the reciprocating motion mechanism, 87 is the liquid supply system, 88 is the working platform, 871 is the liquid storage bucket, 872 is the first temperature sensor, 873 is the three-way reversing valve A, 874 is the second temperature sensor, 875 is the filter, 876 is the three-way reversing valve C, 877 is the three-way reversing valve B, 878 is the pump body, 879 is the water pump, 880 is the constant temperature tank. Detailed implementation manners

[0032] In order to enable those skilled in the art to better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0033] It should be noted that the terms "first", "second", etc. in the description 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 such data can be interchanged under appropriate circumstances so as to describe the embodiments of the present application here.

[0034] In the present application, the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit that the indicated devices, elements or components must have a specific orientation, or be constructed and operated in a specific orientation.

[0035] Moreover, in addition to being used to indicate orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship 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.

[0036] In addition, terms such as "arranged", "provided with", "connected", "fixed", etc. 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 directly connected, or indirectly connected through an intermediate medium, or there can be internal communication between two devices, components, or parts. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] In addition, the meaning of the term "plurality" should be two or more.

[0038] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will detail this application with reference to the drawings and in combination with the embodiments.

[0039] As Figures 1 to 4 shown, an embodiment of this application provides a spinneret, which includes: a body 80, and a liquid supply system 87, a constant temperature system, a spinneret plate 85, and a conveyor belt system provided on the body 80; wherein, a working platform 88 is arranged on the body 80, the conveyor belt system and the liquid supply system 87 are respectively located at the upper and lower ends of the working platform 88, and the spinneret plate 85 is arranged on the working platform 88; the liquid supply system 87 includes: a liquid storage barrel 871, a filter 875 connected to the liquid storage barrel 871 through a pipeline, and a pump body 878 connected to the filter 875 through a pipeline, the output end of the pump body 878 is connected to the solution inlet of the spinneret plate 85, and heating tapes are wrapped around the liquid storage barrel 871 and the filter 875; the constant temperature system includes: a constant temperature tank 880, the constant temperature tank 880 is provided with a water outlet and a water inlet, the water outlet is communicated with the heat preservation water inlet of the spinneret plate 85 through a water pump 879, and the water inlet is communicated with the heat preservation water outlet of the spinneret plate 85; the conveyor belt system includes: conveying rollers 82 arranged on the body 80, the conveying rollers 82 are arranged in four and distributed in a square shape, a conveying mesh belt is sleeved on the four conveying rollers 82, and an exhaust fan 83 is arranged above the conveying mesh belt.

[0040] In this embodiment, the liquid supply system 87 is used to supply the solution to the spinneret 85. It sucks out the solution in the liquid storage tank 871 through the pressure generated by the operation of the pump body 878, flows through the filter 875, and then outputs it to the spinneret 85. The solution is filtered by the filter 875. During this process, the solution in the liquid storage tank 871 and the filter 875 is kept warm and heated by the heating belt so that it can be stabilized at the operating temperature. The water outlet of the constant temperature bath 880 is connected to the water pump 879 through a pipeline, and the water pump 879 is connected to the heat preservation water inlet of the spinneret 85 through a pipeline. There is a loop for the heat preservation water in the spinneret 85. After the heat preservation water enters the spinneret 85, it continuously flows and keeps the solution in the spinneret 85 warm. The heat preservation water after heat exchange flows out from the heat preservation water outlet into the constant temperature bath 880, so as to realize the circulation of the heat preservation water. The solution passes through the spinneret 85 and sprays out fiber filaments upward. At the same time, the non-woven fabric is conveyed into the machine body 80 by the conveying mechanism and is located above the spinneret 85. After the non-woven fabric enters the machine body 80, it is close to the lower surface of the conveying mesh belt, and the negative pressure generated by the exhaust fan 83 adsorbs and adheres the non-woven fabric to the lower surface of the conveying mesh belt. At this time, the non-woven fabric is driven by the conveying mesh belt to move, and during this process, the spinneret 85 sprays filaments on it.

[0041] As Figures 1 to 4 shown, an inlet and a return port are provided on the liquid storage tank 871. The inlet is connected to a three-way reversing valve A873 through pipeline A. One end of the three-way reversing valve A873 is provided with a first drain port, and the other end is connected to the filter 875 through pipeline B; the output end of the pump body 878 is connected to a three-way reversing valve B877 through pipeline C. One end of the three-way reversing valve B877 is connected to the return port of the liquid storage tank 871 through pipeline D, and the other end is connected to a three-way reversing valve C876 through pipeline E. One end of the three-way reversing valve C876 is provided with a second drain port, and the other end is connected to the solution inlet of the spinneret 85. The spinneret 85 can be set to two. Therefore, a three-way pipe is provided at the other end of the three-way reversing valve B877. One end of the three-way pipe is connected to the three-way reversing valve C876 corresponding to one of the spinnerets 85, and the other end is connected to the three-way reversing valve C876 corresponding to the other spinneret 85. Both three-way reversing valves C876 are provided with second drain ports. The setting of the two spinnerets 85 makes the filament spraying on the surface of the non-woven fabric denser.

[0042] As Figures 1 to 4 shown, first temperature sensors 872 are provided on pipelines B, D, and E; second temperature sensors 874 are provided at the output ends of the filter 875 and the pump body 878, and a heating rod is also provided at the output end of the pump body 878. The first temperature sensor 872 and the second temperature sensor 874 can be used to monitor the temperature of the solution in the flow path in real time, which is convenient for timely temperature adjustment. The specific adjustment method can be to control the heating belt to heat the liquid storage tank 871 and the filter 875, or to heat the solution output by the pump body 878 through the heating rod.

[0043] As Figures 1 to 8 shown, the conveyor belt system further includes a photoelectric sensor and a deviation rectifier 81 provided on the machine body 80. The photoelectric sensor is used to monitor the deviation amount of the conveyor belt and is electrically connected to the deviation rectifier 81, and the deviation rectifier 81 is used to rectify the deviation of the conveyor belt. The operation of the conveyor belt is rectified in a timely manner through the cooperation of the photoelectric sensor and the deviation rectifier 81.

[0044] A reciprocating motion mechanism 86 is provided on the working platform 88, and the output end of the reciprocating motion mechanism 86 is connected to the spinneret 85; the spinneret 85 includes: a housing 67 fixed to the output end of the reciprocating motion mechanism 86 and a spinneret body provided in the housing 67. There is a first air duct 70 between both sides of the spinneret body and the inner wall of the housing 67. The housing 67 is provided with a wire outlet channel 59 and a liquid inlet channel, and the housing 67 is provided with an air inlet pipe 60 communicating with the first air duct 70;

[0045] The spinneret body includes a plate body 68 fixed in the housing 67, a pressing plate 58 fixed to the upper end of the plate body 68, and a wire outlet plate 54 fixed to the upper end of the pressing plate 58; among them,

[0046] A liquid outlet groove 63 is provided at the upper end of the plate body 68, a solution flow groove 65 is provided in the plate body 68, and a plurality of liquid outlet ports 76 communicating with the liquid outlet groove 63 are uniformly provided at the upper end of the solution flow groove 65. The plate body 68 is also provided with a liquid inlet port 73 communicating with the solution flow groove 65;

[0047] The pressing plate 58 is provided with a through hole 57 communicating with the liquid outlet groove 63, and a protruding portion 56 is provided at the upper end of the pressing plate 58;

[0048] The lower end of the wire outlet plate 54 is provided with a groove 64 corresponding to the protruding portion 56. When the wire outlet plate 54 is fixed to the pressing plate 58, the protruding portion 56 is located in the groove 64, and there is a distance between the upper end of the protruding portion 56 and the top wall of the groove 64, and there is a second air duct 79 between both sides of the protruding portion 56 and the two side walls of the groove 64; the wire outlet plate 54 is provided with a wire spraying hole 55, and the through hole 57 and the wire spraying hole 55 are coaxially arranged; a plurality of air inlets 53 communicating the first air duct 70 and the second air duct 79 are provided on both sides of the spinneret.

[0049] In this embodiment, the upper and lower ends of the spinneret body are respectively fixedly connected to the upper and lower ends of the housing 67. There are two first air ducts 70 inside the spinneret body and the housing 67, which are respectively located on the left and right sides of the spinneret body, and the sizes of the two first air ducts 70 are the same to ensure the same air intake. The wire outlet channel 59 and the liquid inlet channel on the housing 67 are respectively used for wire outlet and solution inflow. The wire outlet channel 59 is arranged in a long strip shape. The first air inlet pipes 60 on the housing 67 are arranged in two groups and respectively correspond to the left and right first air ducts 70. Each group of first air inlet pipes 60 is arranged in two and symmetrically distributed at both 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 performance 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 communicated with the liquid inlet 73. The upper end of the solution flow groove 65 is communicated with the liquid outlet groove 63, so that the solution flows in from the liquid inlet 73, flows through the solution flow groove 65 and then enters the liquid outlet groove 63. The liquid outlet ports 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 into the liquid outlet groove 63 evenly. The reciprocating motion mechanism can adopt the mechanical structure in the related technology, and realizes the uniform spinning of the non-woven fabric by driving the spinneret to do reciprocating motion. Specifically, the reciprocating motion mechanism can adopt a linear displacement mechanism or an arc displacement mechanism here.

[0050] Since the pressing plate 58 is pressed on the plate body 68, and a through hole 57 communicated with the liquid outlet groove 63 is opened on the pressing plate 58, and the through hole 57 is arranged vertically, so that the solution entering the liquid outlet groove 63 flows into the through hole 57 of the pressing plate 58 and flows out upward from the protruding part 56 under the conveying pressure of the liquid supply device. Since there is a distance between the upper end of the protruding part 56 and the spinneret plate 54, the solution flowing out of the protruding part 56 can be located within this distance. At the same time, the external hot air sequentially flows into the second air duct 79 through the first air inlet pipe 60, the first air duct 70 and the air inlets 53 on both sides of the spinneret plate 54, and the second air duct 79 is located on both sides of the protruding part 56, that is, the second air duct 79 is communicated with the distance between the upper end of the protruding part 56 and the top wall of the groove 64. This embodiment realizes the purpose of uniformly spraying the solution from the spraying holes 55 of the spinneret plate 54 and improving the spraying effect, and further solves the problems of uneven spraying and poor spraying effect of the spinneret plate in the related technology.

[0051] As Figures 4 to 8 shown, the plate body 68 includes a first substrate 62 and a second substrate 61 which are oppositely arranged and fixedly connected. The solution flow groove 65 is opened on one side of the first substrate 62 relative to the second substrate 61; the liquid outlet groove 63 is jointly formed by the grooves opened on the first substrate 62 and the second substrate 61.

[0052] Specifically, it should be noted that the first substrate 62 and the second substrate 61 are integrally arranged in a cuboid shape. The plate body 68 is formed by splicing the first substrate 62 and the second substrate 61 and fixedly connected by bolts. Semi-closed grooves are opened at the upper ends of the first substrate 62 and the second substrate 61. When the plate body 68 is formed, the two semi-closed grooves can jointly form the liquid outlet groove 63.

[0053] As Figures 4 to 8 shown, the protruding part 56 is arranged as an isosceles trapezoid, and the two sides of the protruding part 56 are inclined upward slopes. 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 protruding part 56, in order to enable the solution to be sprayed upward from the spinneret holes 55 on the spinneret plate 54, the two sides of the protruding part 56 are arranged as slopes, so that the hot air changes its direction upward under the action of the slopes after horizontally entering the second air duct 79, realizing the vertical spraying of the solution from the spinneret holes 55. The sizes of the second air ducts 79 on both sides of the protruding part 56 are also the same, ensuring uniform air volume on both sides of the protruding part 56.

[0054] As Figures 4 to 8 shown, the spinneret holes 55 are arranged as tapered holes, and the diameter of the tapered holes gradually decreases from bottom to top. 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 holes 55. Since the spinneret holes 55 are tapered holes, the cross-sectional area is reduced, resulting in an increase in the flow rate of the solution, and then ensuring the stable filament formation of the solution sprayed from the spinneret holes 55.

[0055] As Figures 4 to 8 shown, the through holes 57 are arranged in two groups and distributed on both sides of the protruding part 56. The two groups of through holes 57 are arranged in a staggered manner. The spinneret holes 55 correspond to the through holes 57 one by one. The two groups of through holes 57 make the sprayed filaments also in two groups. The staggered arrangement enables the two groups of filaments to fully cover the non-woven fabric.

[0056] As Figures 4 to 8 shown, the solution flow groove 65 includes a first-stage groove 78, a second-stage groove 74, a third-stage groove 77, and a fourth-stage groove 75 opened on the first substrate 62 from bottom to top; among them, the first-stage groove 78 is located in the middle of the first substrate 62, and the liquid inlet 73 is communicated with the middle of the first-stage groove 78; the second-stage groove 74 is arranged in two and located at both ends of the first-stage groove 78, and the middle of the second-stage groove 74 is communicated with the first-stage groove 78; both ends of each second-stage groove 74 are communicated with two third-stage grooves 77 and connected to the middle of the third-stage groove 77; both ends of each third-stage groove 77 are communicated with two fourth-stage grooves 75 and connected to the middle of the fourth-stage groove 75, and the liquid outlet 76 is arranged at the upper end of the fourth-stage groove 75.

[0057] Specifically, it should be noted that the first-stage groove 78, the second-stage groove 74, the third-stage groove 77, and the fourth-stage groove 75 are all U-shaped grooves. Through this design, the flow of the solution is more uniform, that is, the solution entering the liquid outlet groove 63 is evenly distributed, and then the uniformity of the spinning process is ensured.

[0058] As Figures 4 to 8 shown, due to the high requirements for the temperature of the solution during the spinning process, a heat preservation circuit is further provided on both sides of the plate body 68. The solution flow tank 65 is located within the heat preservation circuit, and a heat preservation medium inlet and a heat preservation medium outlet are respectively provided at both ends of the heat preservation circuit. The heat preservation circuit includes a first heat preservation tank 72 opened on the first substrate 62 and a second heat preservation tank 69 opened on the second substrate 61. The first end of the first heat preservation tank 72 is communicated with the heat preservation medium inlet, the second end is communicated with the first end of the second heat preservation tank 69, and the second end of the second heat preservation tank 69 is communicated with the heat preservation medium outlet. Baffles 66 for closing the corresponding first heat preservation tank 72 and second heat preservation tank 69 are fixed on both the first substrate 62 and the second substrate 61. The heat preservation medium can be heat preservation water, and the solution located within the plate body 68 is heat-preserved by the heat preservation water flowing through to form a U-shaped heat preservation circuit. Round holes 51 corresponding to the heat preservation medium inlet and the heat preservation medium outlet are opened on the baffle 66.

[0059] As Figures 4 to 8 shown, the housing 67 includes two U-shaped plates 50 and fixing plates 52 fixed at both ends of the U-shaped plates 50. 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 plates 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 plates 50 and the first substrate 62 and the second substrate 61; the fixing plates 52 are fixedly connected to the end faces of the first substrate 62 and the second substrate 61.

[0060] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A spinneret, characterized in that, Comprising: A machine body, a liquid supply system, a constant temperature system, a spinneret plate, and a conveyor belt system provided on the machine body; wherein, A working platform is provided on the machine body, the conveyor belt system and the liquid supply system are respectively located at the upper and lower ends of the working platform, and the spinneret plate is provided on the working platform; The constant temperature system includes: a constant temperature tank, an outlet and an inlet are provided on the constant temperature tank, the outlet is connected to the heat preservation water inlet of the spinneret plate through a water pump, and the inlet is connected to the heat preservation water outlet of the spinneret plate; A reciprocating motion mechanism is provided on the working platform, and the output end of the reciprocating motion mechanism is connected to the spinneret plate; The spinneret plate includes: a housing fixed to the output end of the reciprocating motion mechanism and a spinneret plate body provided in the housing, a first air duct is provided between both sides of the spinneret plate body and the inner wall of the housing, a wire outlet channel and a liquid inlet channel are provided on the housing, and an air inlet pipe communicating with the first air duct is provided on the housing; The spinneret plate body includes a plate body fixed in the housing, a pressing plate fixed to the upper end of the plate body, and a wire outlet plate fixed to the upper end of the pressing plate; wherein, An 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 outlet ports communicating with the liquid outlet groove are uniformly provided at the upper end of the solution flow groove, a liquid inlet port communicating with the solution flow groove is further provided on the plate body, and the liquid inlet port is connected to the output end of the pump body; A through hole communicating with the liquid outlet groove is provided on the pressing plate, and a protruding portion is provided at the upper end of the pressing plate; 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 to the pressing plate, the protruding portion is located in the groove, and there is a distance between the upper end of the protruding portion and the top wall of the groove, and a second air duct is provided between both sides of the protruding portion and the two side walls of the groove; a wire spraying hole is provided on the wire outlet plate, and the through hole and the wire spraying hole are coaxially arranged; a plurality of air inlets communicating the first air duct and the second air duct are provided on both sides of the spinneret plate; The plate body includes a first substrate and a second substrate which are oppositely arranged and fixedly connected, and the solution flow groove is opened on one side of the first substrate relative to the second substrate; the liquid outlet groove is jointly formed by grooves opened on the first substrate and the second substrate; The protruding portion is arranged as an isosceles trapezoid, and both sides of the protruding portion are inclined upward slopes; The wire spraying hole is arranged 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.

2. The spinneret according to claim 1, characterized in that, The liquid supply system includes: a liquid storage bucket, a filter connected to the liquid storage bucket through a pipeline, and a pump body connected to the filter through a pipeline, the output end of the pump body is connected to the solution inlet of the spinneret plate, and a heating belt is covered on the liquid storage bucket and the filter; An inlet and a return port are provided on the liquid storage bucket, the inlet is connected to a three-way reversing valve A through pipeline A, one end of the three-way reversing valve A is provided with a first liquid discharge port, and the other end is connected to the filter through pipeline B; The output end of the pump body is connected to a three-way reversing valve B through pipeline C, one end of the three-way reversing valve B is connected to the return port of the liquid storage bucket through pipeline D, and the other end is connected to a three-way reversing valve C through pipeline E, one end of the three-way reversing valve C is provided with a second liquid discharge port, and the other end is connected to the solution inlet of the spinneret plate.

3. The spinneret according to claim 2, characterized in that, First temperature sensors are provided on pipeline B, pipeline D, and pipeline E; Second temperature sensors are provided at the output ends of the filter and the pump body, and a heating rod is further provided at the output end of the pump body.

4. The spinneret according to claim 3, characterized in that, The conveyor belt system includes: conveyor rollers provided on the machine body, with four conveyor rollers arranged in a square distribution, a conveyor belt sleeved on the four conveyor rollers, and an exhaust fan provided above the conveyor belt; The conveyor belt system further includes a photoelectric sensor and a belt aligner provided on the machine body. The photoelectric sensor is used to monitor the offset of the conveyor belt and is electrically connected to the belt aligner, and the belt aligner is used to correct the deviation of the conveyor belt.

5. The spinneret according to claim 4, characterized in that, Heat preservation circuits are further provided on both sides of the plate body. The solution flow tank is located within the heat preservation circuits. The two ends of the heat preservation circuits are respectively provided as a heat preservation water inlet and a heat preservation water outlet, and are respectively connected to a water extraction pump and a constant temperature tank.

6. The spinneret according to claim 5, wherein The solution flow tank includes a first-stage tank, a second-stage tank, a third-stage tank, and a fourth-stage tank opened on the first substrate from bottom to top; among them, The first-stage tank is located in the middle of the first substrate, and the liquid inlet is communicated with the middle of the first-stage tank; There are two second-stage tanks located at both ends of the first-stage tank, and the middle of the second-stage tank is communicated with the first-stage tank; Both ends of each second-stage tank are communicated with two third-stage tanks and are connected to the middle of the third-stage tanks; Both ends of each third-stage tank are communicated with two fourth-stage tanks and are connected to the middle of the fourth-stage tanks, and the liquid outlet is provided at the upper end of the fourth-stage tank.

7. The spinneret according to claim 6, characterized in that, The heat preservation circuit includes a first heat preservation tank opened on the first substrate and a second heat preservation tank opened on the second substrate. The first end of the first heat preservation tank is communicated with the heat preservation medium inlet, the second end is communicated with the first end of the second heat preservation tank, and the second end of the second heat preservation tank is communicated with the heat preservation medium outlet.

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