Composite spinning spinneret plate

Abstract

The utility model provides a composite spinning spinneret plate, which relates to the field of composite spinning production, and comprises a spinneret plate body, a composite spinning infusion hole is arranged on the surface of the spinneret plate body, a micropore column sleeve is inserted into the hole wall of the composite spinning infusion hole, a fixed bottom plate is fixed at the lower end of the micropore column sleeve, and the fixed bottom plate is fixed on the spinneret plate body. A positioning pressing plate is pressed on the lower surface of the fixed bottom plate, the outer side end of the positioning pressing plate is connected with the outer side wall of the spinneret plate body through an adjusting stud, a limiting ring plate is welded to the lower surface of the spinneret plate body, and the positioning pressing plate is inserted into the outer side ring surface of the limiting ring plate. The spinneret plate solves the problem that in the prior art, when the micropores of the spinneret plate are adjusted, the spinneret plate and a flow guide assembly of a composite spinning solution need to be disassembled and assembled, and the composite spinning production efficiency is affected.

Description

Technical Field

[0001] The utility model relates to the field of composite spinning production, in particular to a composite spinning spinneret. Background Art

[0002] In composite spinning production, a spinneret is used to transform two or more viscous polymer melts or solutions into thin streams with specific cross-sections through micropores, which are solidified by a coagulation medium such as air or a coagulation bath to form filaments, which are then subjected to textile processing. After searching, the prior art (application number: CN202320176745.8) records that "when the spinneret is used, when the spinneret hole specifications need to be changed, that is, when different spinnerets are installed, the number of adjustment blocks can be increased or decreased, so that the spinneret cooperates with the spinneret substrate and the fixed plate, thereby expanding the use range of the spinneret and reducing the production cost." However, in the prior art, the spinneret and the guide assembly of the composite spinning solution need to be disassembled when adjusting the micropores of the spinneret, which affects the composite spinning production efficiency. Utility Model Content

[0003] In order to overcome the defects of the prior art, a composite spinning spinneret is provided to solve the problem that the spinneret and the guide assembly of the composite spinning solution need to be disassembled and assembled when adjusting the micropores of the spinneret in the prior art, which affects the composite spinning production efficiency.

[0004] In order to achieve the above-mentioned object, a composite spinning spinneret is provided, comprising: a spinneret body, wherein a composite spinning liquid infusion hole is opened on the surface of the spinneret body,

[0005] A microporous column sleeve is inserted into the wall of the composite spinning infusion hole, a fixed base plate is fixed to the lower end of the microporous column sleeve, a positioning pressure plate is pressed onto the lower surface of the fixed base plate, the outer end of the positioning pressure plate is connected to the outer wall of the spinneret body through an adjusting stud, a limiting ring plate is welded to the lower surface of the spinneret body, and a positioning pressure plate is inserted into the outer ring surface of the limiting ring plate.

[0006] Furthermore, a fixing hole is opened in the middle of the spinneret body, and composite spinning infusion holes and positioning pressing plates are equidistantly distributed in a circular shape outside the fixing hole.

[0007] Furthermore, the microporous column sleeve and the fixed bottom plate are integrally sintered and formed using a ceramic-based composite material, and two groups of arc-shaped grooves are symmetrically arranged on the upper end surface of the microporous column sleeve; and the arc-shaped grooves are plugged into the wall of the composite spinning infusion hole.

[0008] Furthermore, the limiting ring plate is distributed at the periphery of the lower end of the fixing hole; and the inner groove hole of the limiting ring plate is consistent with the fixing hole, and the outer end of the limiting ring plate is plugged and fitted with the inner end of the positioning pressure plate through the positioning groove.

[0009] Furthermore, a liquid outlet hole is arranged on the lower surface of the positioning plate; and the lower end surface of the positioning plate is fan-shaped, and the liquid outlet hole is connected with the composite spinning liquid infusion hole.

[0010] Furthermore, a limiting concave surface is provided on the upper sector surface of the positioning pressure plate; and the surface of the limiting concave surface is snap-fitted with the fixed bottom plate.

[0011] Furthermore, the microporous column sleeve, the fixed bottom plate, the positioning pressure plate and the adjusting stud constitute a microporous replacement structure of the spinneret body.

[0012] The beneficial effect of the utility model lies in that the composite spinning spinneret of the utility model is installed in the holes of the spinneret by means of microporous column sleeves, the microporous column sleeves in the holes of each group of spinnerets are pressed and fixed by a positioning pressure plate, the microporous column sleeves can be taken out by pulling out the positioning pressure plate, thus realizing a spinneret with replaceable micropores, which can be easily and quickly disassembled and replaced with new microporous column sleeves independently, thus avoiding the breakage of composite spinning filaments caused by the worn micropores of the spinneret, and improving the spinneret curing processing efficiency of composite spinning. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the front cross-sectional structure of the composite spinning spinneret according to an embodiment of the utility model.

[0014] Figure 2 It is a schematic diagram of the structure of the composite spinning spinneret according to an embodiment of the utility model when viewed from above.

[0015] Figure 3 It is a schematic diagram of the top structure of the composite spinning spinneret according to an embodiment of the utility model.

[0016] Figure 4 It is a structural schematic diagram of a positioning pressure plate according to an embodiment of the utility model.

[0017] In the figure: 1, spinneret body; 11, composite spinning liquid infusion hole; 12, fixing hole; 2, microporous column sleeve; 21, fixed bottom plate; 3, limiting ring plate; 31, positioning groove; 4, positioning pressure plate; 41, adjusting stud; 42, liquid outlet hole; 43, limiting concave surface. DETAILED DESCRIPTION

[0018] Reference Figures 1 to 4 As shown, the utility model provides a composite spinning spinneret, comprising: a spinneret body 1, a composite spinning liquid infusion hole 11 is opened on the surface of the spinneret body 1,

[0019] A microporous column sleeve 2 is inserted into the wall of the composite spinning infusion hole 11, a fixed bottom plate 21 is fixed to the lower end of the microporous column sleeve 2, a positioning pressure plate 4 is pressed on the lower surface of the fixed bottom plate 21, and the outer end of the positioning pressure plate 4 is connected to the outer wall of the spinneret body 1 through an adjusting stud 41. A limiting ring plate 3 is welded to the lower surface of the spinneret body 1, and a positioning pressure plate 4 is inserted into the outer ring surface of the limiting ring plate 3.

[0020] Working principle: When the spinneret body 1 is used daily and the wall of a certain micropore is worn out, causing the composite spinning filaments to break, stop delivering the composite spinning solution, unscrew the adjusting screw 41, pull out the positioning plate 4 under the corresponding micropore, take out the micropore column sleeve 2 inserted in the micropore, insert the new micropore column sleeve 2 into the micropore, and then push the positioning plate 4 inward so that the positioning plate 4 presses the micropore column sleeve 2 tightly and fixes it on the hole wall of the composite spinning infusion hole 11, completing the replacement of the micropores of the spinneret body 1, and conveniently and quickly disassemble and replace the new micropore column sleeve independently to avoid the breakage of the composite spinning filaments caused by the worn micropores of the spinneret.

[0021] In this embodiment, a fixing hole 12 is opened in the middle of the spinneret body 1, and composite spinning liquid infusion holes 11 and positioning pressing plates 4 are evenly distributed in a ring shape outside the fixing hole 12.

[0022] As a preferred embodiment, the spinneret body 1 is fixed to the mounting assembly through the fixing hole 12, so that the guide tube for conveying the composite spinning polymer solution is inserted and installed with the composite spinning liquid delivery hole 11.

[0023] In this embodiment, the microporous column sleeve 2 and the fixed bottom plate 21 are integrally sintered and formed by using a ceramic-based composite material. Two groups of arc grooves are symmetrically arranged on the upper end surface of the microporous column sleeve 2; and the arc grooves are plugged into the hole wall of the composite spinning infusion hole 11.

[0024] As a preferred embodiment, the microporous column sleeve 2 formed by integrally sintering a ceramic-based composite material has excellent wear resistance, thereby reducing the degree of wear of the microporous wall of the spinneret body 1.

[0025] In this embodiment, the limiting ring plate 3 is distributed at the periphery of the lower end of the fixing hole 12; and the inner groove hole of the limiting ring plate 3 is consistent with the fixing hole 12, and the outer end of the limiting ring plate 3 is plugged and fitted with the inner end of the positioning pressure plate 4 through the positioning groove 31.

[0026] As a preferred embodiment, the limiting ring plate 3 is convenient for inserting the positioning pressing plate 4 so that the positioning pressing plate 4 can firmly press the microporous column sleeve 2 against the spinneret body 1 .

[0027] In this embodiment, a liquid outlet 42 is provided on the lower surface of the positioning plate 4 ; and the lower end surface of the positioning plate 4 is fan-shaped, and the liquid outlet 42 is connected to the composite spinning liquid infusion hole 11 .

[0028] As a preferred embodiment, the liquid outlet hole 42 is convenient for discharging the composite spinning solution converted by the micropores of the spinneret body 1, so that the discharged composite spinning solution is solidified into a filament shape.

[0029] In this embodiment, a limiting concave surface 43 is formed on the upper fan surface of the positioning pressure plate 4 ; and the surface of the limiting concave surface 43 is snap-fitted with the fixed bottom plate 21 .

[0030] As a preferred embodiment, the limiting concave surface 43 facilitates the limiting engagement of the fixed bottom plate 21 , thereby ensuring that the fixed bottom plate 21 and the spinneret body 1 are firmly spliced.

[0031] In this embodiment, the micropore column sleeve 2, the fixed bottom plate 21, the positioning pressure plate 4 and the adjusting screw 41 constitute the micropore replacement structure of the spinneret body 1.

[0032] As a preferred embodiment, the micropore replacement structure of the spinneret body 1 allows for quick and easy independent disassembly and replacement of new micropore column sleeves, thereby preventing the wear of the micropores of the spinneret from causing breakage of the composite spinning filaments and reducing the loss cost of the spinneret body 1.

[0033] The composite spinning spinneret of the utility model can effectively solve the problem in the prior art that the spinneret and the guide assembly of the composite spinning solution need to be disassembled and assembled when adjusting the micropores of the spinneret, which affects the composite spinning production efficiency. The utility model realizes a spinneret with replaceable micropores, which can be easily and quickly disassembled and replaced with a new micropore column sleeve independently, avoiding the breakage of the composite spinning filaments caused by the worn micropores of the spinneret, thereby improving the spinneret curing processing efficiency of the composite spinning, and is suitable for composite spinning spinnerets.

Claims

1. A composite spinning spinneret, comprising: A spinneret body (1), wherein a composite spinning liquid infusion hole (11) is provided on the surface of the spinneret body (1), characterized in that: The wall of the composite spinning liquid infusion hole (11) is plugged with a microporous column sleeve (2), the lower end of the microporous column sleeve (2) is fixed with a fixed bottom plate (21), the lower surface of the fixed bottom plate (21) is pressed with a positioning pressure plate (4), the outer end of the positioning pressure plate (4) is connected to the outer wall of the spinneret body (1) through an adjusting stud (41), the lower surface of the spinneret body (1) is welded with a limiting ring plate (3), and the outer ring surface of the limiting ring plate (3) is plugged with the positioning pressure plate (4).

2. A composite spinning spinneret according to claim 1, characterized in that: A fixing hole (12) is provided in the middle of the spinneret body (1), and composite spinning liquid infusion holes (11) and positioning pressing plates (4) are equidistantly distributed in a circular shape outside the fixing hole (12).

3. A composite spinning spinneret according to claim 1, characterized in that: The microporous column sleeve (2) and the fixed bottom plate (21) are formed by integrally sintering a ceramic-based composite material, and the upper end surface of the microporous column sleeve (2) is symmetrically provided with two groups of arc-shaped grooves; and the arc-shaped grooves are plugged into the hole wall of the composite spinning liquid infusion hole (11).

4. A composite spinning spinneret according to claim 1, characterized in that: The limiting ring plate (3) is distributed at the periphery of the lower end of the fixing hole (12); the inner groove hole of the limiting ring plate (3) is consistent with the fixing hole (12); the outer end of the limiting ring plate (3) is plugged and fitted with the inner end of the positioning pressure plate (4) through the positioning groove (31).

5. A composite spinning spinneret according to claim 1, characterized in that: The lower surface of the positioning platen (4) is provided with a liquid outlet hole (42); and the lower end surface of the positioning platen (4) is fan-shaped, and the liquid outlet hole (42) is connected with the composite spinning liquid infusion hole (11).

6. A composite spinning spinneret according to claim 1, characterized in that: The upper fan surface of the positioning pressure plate (4) is provided with a limiting concave surface (43); and the surface of the limiting concave surface (43) is snap-fitted with the fixed bottom plate (21).

7. A composite spinning spinneret according to claim 1, characterized in that: The micropore column sleeve (2), the fixed bottom plate (21), the positioning pressure plate (4) and the adjusting stud (41) constitute a micropore replacement structure of the spinneret body (1).

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