WO2016086383A1 - 弹性纤维干法纺丝组件和纺丝部件 - Google Patents
弹性纤维干法纺丝组件和纺丝部件 Download PDFInfo
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- WO2016086383A1 WO2016086383A1 PCT/CN2014/093008 CN2014093008W WO2016086383A1 WO 2016086383 A1 WO2016086383 A1 WO 2016086383A1 CN 2014093008 W CN2014093008 W CN 2014093008W WO 2016086383 A1 WO2016086383 A1 WO 2016086383A1
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- Prior art keywords
- spinning
- conversion
- polymer solution
- inlet
- metering
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- 238000009987 spinning Methods 0.000 title claims abstract description 296
- 238000000578 dry spinning Methods 0.000 title claims abstract description 86
- 229920002334 Spandex Polymers 0.000 title claims abstract description 60
- 239000004759 spandex Substances 0.000 title claims abstract description 60
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Images
Classifications
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D1/00—Treatment of filament-forming or like material
- D01D1/06—Feeding liquid to the spinning head
- D01D1/09—Control of pressure, temperature or feeding rate
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/04—Dry spinning methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D1/00—Treatment of filament-forming or like material
- D01D1/02—Preparation of spinning solutions
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D1/00—Treatment of filament-forming or like material
- D01D1/10—Filtering or de-aerating the spinning solution or melt
- D01D1/106—Filtering
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D4/00—Spinnerette packs; Cleaning thereof
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D4/00—Spinnerette packs; Cleaning thereof
- D01D4/02—Spinnerettes
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D4/00—Spinnerette packs; Cleaning thereof
- D01D4/02—Spinnerettes
- D01D4/027—Spinnerettes containing inserts
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D4/00—Spinnerette packs; Cleaning thereof
- D01D4/06—Distributing spinning solution or melt to spinning nozzles
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D4/00—Spinnerette packs; Cleaning thereof
- D01D4/04—Cleaning spinnerettes or other parts of the spinnerette packs
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/06—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyethers
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/12—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyureas
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/06—Load-responsive characteristics
- D10B2401/061—Load-responsive characteristics elastic
Definitions
- the invention relates to the technical field of elastic fiber production, in particular to an elastic fiber dry spinning assembly and a spinning component.
- the structure of the existing spinning assembly includes a casing 1a having a plurality of mutually separated polymer solution passages 2a longitudinally.
- the portion of the casing other than the passage is a cavity 3a, and the cavity 3a is used internally.
- the fluid medium in heat exchange with the polymer solution in the channel is provided with a spinneret 4a in the passage.
- the chemical raw materials required for the production of elastic fibers are polymerized to form a polymer solution, and the polymer solution is metered and distributed by a metering device to form a flow of each polymer solution, and each polymer solution solution flows into each channel of the temperature control box and The tow is ejected through the spinnerets in each channel to form a tow.
- the spinneret In the process of dry spinning of elastic fibers such as spandex fibers, the spinneret is prone to clogging, gelation, etc., and the spinnerets need to be replaced or cleaned regularly or periodically. Since the conventional spin pack spinneret shown in Fig. 33 is installed inside the polymer solution passage and needs to be replaced or cleaned and maintained, it is usually necessary to remove the entire spinning assembly from the spinning member during maintenance, or, usually, Each spinneret is separately removed from each of the polymer solution channels, etc., which is time consuming, labor inefficient, and often interrupts the continuous production of the fibers.
- Embodiments of the present invention provide an elastic fiber dry spinning assembly and a spinning member.
- an elastic fiber dry spinning assembly comprising:
- the temperature control box includes: a box body, the box body is longitudinally provided with a plurality of mutually separated polymer solution channels; the area of the box body other than each of the polymer solution channels is a cavity for circulating a fluid medium that exchanges heat with the polymer solution for elastic fiber dry spinning in the channel of the polymer solution;
- the spinning portion detachably connected to the temperature control box, the spinning portion comprising a plurality of mutually insulated spinning hole groups, a plurality of the spinning hole groups and a plurality of the polymer solution channels
- the exits correspond to each other.
- an elastic fiber dry spinning component comprising:
- the metering device is detachably connected to the temperature control box for metering and a plurality of the polymerizations
- the solution solution channel distributes the polymer solution for the elastic fiber dry spinning.
- the technical solution provided by the embodiments of the present invention can be used in, but not limited to, a dry spinning process of elastic fibers such as spandex fibers.
- a spinning assembly provided on the one hand of the present invention, a temperature control box for temperature control of a polymer solution for elastic fiber dry spinning, and a spinning nozzle for spinning a polymer solution after temperature control treatment
- the unit is provided as two relatively independent components and is detachably integrated into a detachable but relatively fixed unit for easy installation, maintenance and continuous production of the fiber, for example, in a spinning assembly.
- the spinning part can be separated from the temperature control box, and the other spinning part of the cleaning can be replaced with the current spinning part.
- the replacement is simple and convenient, and the influence on the continuous production of the fiber is small, and the replacement time is very small. It is short, and the spinning part can be cleaned after separation, which reduces the cleaning workload and improves the convenience and efficiency of installation and maintenance.
- the spinning component provided by another aspect of the embodiment of the invention has the technical effect of the spinning component, and the components of the measuring device, the temperature control box and the spinning section are organically integrated into a spinning component from top to bottom.
- the two can be detachably connected, the implementation is very flexible, and the structure is also very compact, so that the spacing between adjacent tows of the formed elastic fibers can be greatly reduced on the basis of meeting the production requirements, thereby Spraying more tows in a limited space increases the productivity of the spinning assembly and reduces the energy consumption per ton of product, thereby reducing the production cost of the product.
- FIG. 1 is a schematic perspective view showing a three-dimensional structure of an elastic fiber dry spinning assembly according to an embodiment of the present invention
- FIG. 2 is a schematic cross-sectional structural view of an elastic fiber dry spinning assembly according to an embodiment of the present invention
- FIG. 3 is a schematic perspective view of a temperature control box for an elastic fiber dry spinning according to an embodiment of the present invention
- FIG. 4 is a schematic cross-sectional structural view of a temperature control box for dry spinning of elastic fibers according to an embodiment of the present invention
- Figure 5 is a schematic cross-sectional view taken along line A-A of Figure 4.
- 6a is a schematic structural diagram of an intermediate component according to an embodiment of the present invention.
- 6b is a schematic structural diagram of another intermediate component according to an embodiment of the present invention.
- FIG. 7a is a schematic structural diagram of still another intermediate component according to an embodiment of the present invention.
- FIG. 7b is a schematic structural diagram of still another intermediate component according to an embodiment of the present invention.
- FIG. 8 is a schematic cross-sectional structural view of another temperature control box for dry spinning of elastic fibers according to an embodiment of the present invention.
- FIG. 9 is a perspective structural view showing another elastic fiber dry spinning component according to an embodiment of the present invention. intention;
- FIG. 10 is a schematic cross-sectional structural view of another elastic fiber dry spinning component according to an embodiment of the present invention.
- Figure 11a is a cross-sectional view taken along line A-A of Figure 10;
- Figure 11b is a cross-sectional view taken along line B-B of Figure 10;
- Figure 11c is a cross-sectional view taken along line C-C of Figure 10;
- Figure 11d is a cross-sectional view taken along line D-D of Figure 10;
- Figure 11e is a cross-sectional view taken along line E-E of Figure 10;
- Figure 11f is a cross-sectional view taken along the line F-F of Figure 10;
- FIG. 12 is a schematic structural diagram of a first first metering device according to an embodiment of the present invention.
- 13a is a schematic diagram of an arrangement of an inlet and an outlet of a metering unit according to an embodiment of the present invention
- FIG. 13b is a schematic diagram of an arrangement arrangement of interface conversion components according to an embodiment of the present invention.
- 13c is a schematic diagram of an arrangement of an interface conversion component outlet according to an embodiment of the present invention.
- FIG. 14 is a schematic structural diagram of a second first metering device according to an embodiment of the present invention.
- FIG. 15 is a schematic structural diagram of a third first metering device according to an embodiment of the present invention.
- FIG. 16 is a schematic structural diagram of a fourth first metering device according to an embodiment of the present invention.
- FIG. 17 is a schematic structural diagram of an interface conversion unit according to an embodiment of the present disclosure.
- FIG. 18 is a schematic structural diagram of a fifth first metering device according to an embodiment of the present invention.
- FIG. 19 is a schematic structural diagram of a sixth first metering device according to an embodiment of the present invention.
- FIG. 20 is a schematic structural diagram of a seventh first metering device according to an embodiment of the present invention.
- FIG. 21 is a schematic structural diagram of an eighth first metering device according to an embodiment of the present invention.
- FIG. 22 is a schematic structural diagram of a ninth first metering device according to an embodiment of the present invention.
- Figure 22b is a cross-sectional view of Figure 22a
- Figure 22c is a cross-sectional view taken along line A-A of Figure 22b;
- Figure 22d is a cross-sectional view taken along line B-B of Figure 22b;
- Figure 22e is a cross-sectional view taken along line C-C of Figure 22b;
- FIG. 23 is a schematic structural diagram of a metering device according to an embodiment of the present invention.
- Figure 24 is a cross-sectional view of Figure 23;
- 25 is a schematic diagram of an outlet arrangement manner of one side of a metering unit according to an embodiment of the present invention.
- FIG. 26 is a schematic diagram of an arrangement manner of an inlet of a first conversion board according to an embodiment of the present invention.
- FIG. 27 is a schematic diagram of an outlet arrangement manner of a first conversion board according to an embodiment of the present invention.
- FIG. 28 is a schematic structural diagram of another metering device according to an embodiment of the present invention.
- Figure 29 is a cross-sectional view of Figure 28;
- Figure 30 is a cross-sectional view taken along the line A-A of the second conversion plate of Figure 29;
- Figure 31 is a schematic view showing the structure of an elastic fiber dry spinning component according to an embodiment of the present invention.
- FIG. 32 is a schematic structural view of another elastic fiber dry spinning component according to an embodiment of the present invention.
- Figure 34 is a schematic view showing the structure of an elastic fiber dry spinning member in the prior art.
- 11-first metering device 111-metering unit; 1111-importing unit inlet; 1112-metering unit outlet; 1113, 1123-circle; 112-interface conversion unit; 1121-interface conversion unit inlet; 1122-interface conversion Exit of the section; 1124-straight; 11201-first distribution plate; 11201'-first distribution daughterboard; 11202-second distribution plate; 11202'-second distribution daughterboard; 112011-through hole of the first distribution plate; 11203-seal ring; 11204-seal; 112021-flow-converting channel; 112022-through hole of second distribution plate; 113-bolt; 1141-solution inlet; 1142-solution flow channel; 115-gear motor; Coupling
- 12-second metering device 121-metering unit; 1212-metering unit outlet; 1213, 1223-circle; 1214-conversion-converting channel; 122-first conversion plate; 1221-first conversion plate inlet; Outlet of the first conversion plate; 1224, 1252-straight; 1225-solution inlet; 124-drive shaft; 125-second conversion plate; 1251-through hole; 126-spinning assembly;
- 3-temperature control box 31-box; 32-polymer solution channel; 320-polymer solution channel pore wall; 321-polymer solution channel inlet; 322-polymer solution channel outlet; 323, 324- Straight line; 33-cavity; 34-fluid medium; 35-intermediate part; 350-static mixer; 351-shunt part; 352-convergence part; 3511-inlet sub-portion; 3512-outlet sub-section; Flow section; 35111-hollow cylinder inlet section; 35112-inverted cone table distribution section; 36-seal ring; 371-fluid medium inlet; 372-fluid medium outlet; 38-filter component; 39-annular polymerization Stream of solution;
- 4-spinning section 41-spinning hole group; 411-spinning hole; 412-spinning head; 413-straight line; 6-insulation board; 7-filter assembly; 8-heat protection board.
- an elastic fiber dry spinning assembly comprising:
- the temperature control box 3 includes: a box body 31, the box body 31 is longitudinally provided with a plurality of mutually separated polymer solution channels 32;
- the area outside the solution passage 32 is a cavity for circulating a fluid medium that exchanges heat with the polymer solution for elastic fiber dry spinning in the channel of the polymer solution.
- the distribution of the plurality of mutually isolated polymer solution channels 32 can be designed according to actual needs, such as distributing a plurality of polymer solution channels 32 into one or more rows and the like.
- the detachable connection between the spinning section 4 and the temperature control box 3 is not limited, and may be, for example, but not limited to, bolted, screwed, snapped, or the like.
- the distribution of the plurality of mutually isolated orifice groups 41 can also be designed according to actual needs. For example, the plurality of orifice groups 41 can be distributed into one or more rows corresponding to the plurality of polymer solution channels 32.
- the spinning assembly provided by the embodiment of the invention can be used in a dry spinning process of an elastic fiber such as spandex fiber, and the spinning assembly is used for a temperature control box for temperature control of the polymer solution for elastic fiber dry spinning.
- the spinning section for spinning the temperature-treated polymer solution is provided as two relatively independent components and is detachably integrated into a detachable but relatively fixed position for easy spinning.
- the installation, maintenance and continuous production of the components for example, when the spinning assembly is replaced or cleaned and maintained, the spinning section can be separated from the temperature control box, and the other spinning section of the cleaning can be replaced with the current spinning section.
- the replacement is simple and convenient, has little effect on the continuous production of the fiber, and can clean the spinning part after separation, thereby reducing the cleaning workload and improving the efficiency.
- the overall structure of the spinning section 4 may be determined according to, but not limited to, the cross-sectional shape of the ramp used for dry spinning of the elastic fiber.
- the spinning portion 4 may have a rectangular structure as a whole, but the plurality of the spinning hole groups 41 are linearly arranged, and the spinneret having a rectangular structure is advantageous for the rectangular shape used for dry spinning of the elastic fibers. Ramp adaptation.
- the spinning hole group 41 includes: a spinning hole 411 and a spinneret sub-section disposed in the spinning hole 411, and the spinneret sub-section includes at least one spinneret 412 And at least one of the plurality of the spinning hole groups includes a spinneret sub-portion detachably connected to the corresponding spinning hole, the solution improves the maintenance and installation of the spinneret cleaning and replacement Sex.
- a scheme in which the spinneret sub-section includes a plurality of spinnerets 412 can increase the number of tows and increase productivity.
- the detachable connection manner of the spinneret subsection and the corresponding spinneret hole included in at least one of the plurality of the spinning orifice groups is not limited, and may be, for example, but not limited to, the spinneret subsection and Corresponding nozzle holes are interspersed into a connection or a threaded connection for ease of installation and maintenance, for example, a spray comprising a plurality of spinnerets 412
- the wire head as a whole is pressed into the corresponding nozzle hole by interference, and the installation method is simple and convenient for positioning the respective spinnerets.
- the plurality of spinnerets 412 integrally included in the spinning section 4 are linearly spaced apart on one or more parallel straight lines to be adapted to the spinnering process for the rectangular ramps used for dry spinning of the elastic fibers.
- a side of the spinning section 4 away from the temperature control box 3 is provided with a heat protection plate 8 for reducing the spinning box during the use (the spinning box includes but is not limited to a ramp, etc.) Heat transfer of the spinning section 4.
- the spinning assembly provided by the embodiment of the present invention is connected to the spinning box, for example, the spinning assembly can be installed on the upper part of the spinning box, and the spinning section is located in the temperature control box and Between the spinning boxes, the capillary bundle of the polymer solution ejected from the spinning section 4 is contacted by a temperature-controlled gas flow in the spinning box, and the solvent in the ejected material is removed by heat exchange to form an elastic fiber tow.
- Temperature controlled gas flow can include, but is not limited to, temperature controlled air, temperature controlled nitrogen, temperature controlled inert gas, and the like. Since the temperature of the temperature-controlled airflow is generally high, the temperature-controlled airflow in the spinning box is transmitted to the spinning section 4, and a temperature difference is introduced to different parts of the spinning section 4, thereby affecting product quality.
- a heat protection plate 8 is disposed on one side of the spinning portion 4 away from the temperature control box. By thermal isolation of the heat protection plate 8, heat transfer from the temperature control airflow in the spinning box to the spinning portion can be reduced, thereby facilitating Guarantee the quality of the product.
- the material selected for the heat protection plate may be determined according to actual needs, and may be, but not limited to, a material that is not thermally conductive, such as a resin; the specific structure of the heat protection plate can be flexibly designed under the premise that the fiber production is normal; The embodiments of the present invention are not limited thereto.
- At least one inlet of the orifice group 41 is provided with a filter assembly 7.
- the filter assembly 7 By providing the filter assembly 7 at the inlet of the orifice group 41, the solution flowing out of the polymer solution passage can be filtered again through the filter assembly 7 before entering the orifice group 41, extending the replacement or cleaning of the orifice group.
- the maintenance cycle due to the low cost of the filter assembly and easy replacement, therefore, the solution indirectly increases the production efficiency by extending the maintenance cycle of the orifice group.
- the material selected by the filter may be determined according to actual needs, and may be, but not limited to, made of materials such as metal; the specific structure of the shape and size of the filter may be flexibly designed under the premise that the fiber production is normal; The embodiments of the invention are not limited in this regard.
- the filtering component comprises: a multi-layer filter network assembled together, and at least two layers of the filter mesh have different mesh numbers, and the solution is filtered together by a multi-layer filter network set with different mesh numbers, which is beneficial to improvement.
- the plurality of stacked filters are also provided with a sealed edging.
- the material selected for the sealing edging can be determined according to actual needs, and the portion covering the edge of the multi-layer filter can be made by using materials such as soft material, corrosion-resistant rubber, etc., and the solution achieves the above technical effects. On the basis of this, it is also possible to seal the inlet of the orifice group and reduce the probability of introduction of impurities.
- the spinning assembly is further provided with a first rotating device for rotating the spinning assembly to change the orientation of the spinning portion away from the side of the temperature control box.
- the orientation of the side of the spinning section away from the temperature control box may be changed by the first rotating device rotating the spinning assembly in whole or in part, such that the rotating spinning section is away from the side of the temperature control box
- At least one component in the spin section is convenient
- a state of operation such as disassembly, installation, cleaning, or maintenance, which may include, but is not limited to, an upward state in which the spinning assembly is rotated at a certain angle (e.g., 180 degrees) in whole or in part, and the like. This solution improves the ease of handling, installation, cleaning or maintenance.
- the main function of the temperature control box in the dry spinning production process of elastic fibers such as spandex is to keep the temperature of the polymer solution in the channel constant.
- the temperature has a large influence on the viscosity of the polymer solution of the dry spun elastic fiber. If the temperature of the polymer solution flowing into the orifice is not uniform, it will directly affect the viscosity of the polymer solution passing through the passage, thereby affecting the rheology of the polymer solution entering the spinneret, which may cause spray through the spinneret.
- the tow is unstable, such as uneven thickness of the tow, intermittent and so on.
- the temperature control capability of the temperature control box becomes more important under the condition that the flow rate of the polymer solution of the temperature control box is continuously increased.
- the inventors of the present invention found in the process of practicing the embodiments of the present invention that in the dry spinning production process of elastic fibers such as spandex based on the existing temperature control box, as shown in FIG. 32, the polymer solution passage 2a flows.
- the inner polymer solution undergoes non-contact heat exchange with the fluid medium in the cavity 3a through the wall surface of the polymer solution passage 2a, since the polymer solution flowing into the polymer solution passage 2a is a solid stream having a certain size,
- the degree of heat exchange between different parts of the polymer solution and the fluid medium may vary, especially when the polymer solution is a solid stream having a larger size and/or a faster flow rate of the polymer solution, etc., the polymer solution
- the center portion temperature is lower than the edge portion, etc., i.e., different portions of the radial temperature difference of the polymer solution in the polymer solution passage 2a, so that the temperature of the polymer solution flowing into the nozzle hole 4a unevenness constant. Since the temperature has a large influence on the viscosity of the polymer solution for dry spinning of elastic fibers such as spandex, if the temperature of the polymer solution flowing into the orifice 4a is not uniform, it directly affects the passage through the passage.
- the viscosity of the polymer solution which in turn affects the rheology of the polymer solution entering the spinneret, may cause the tow of the spinneret to be unstable, such as uneven thickness of the tow, intermittent, etc., affecting the fiber. Quality, if serious, may affect the continuous operation of dry spinning.
- FIG. 3 is a schematic perspective structural view of a temperature control box for dry spinning of an elastic fiber according to an embodiment of the present invention
- FIG. 4 is a schematic cross-sectional structural view of a temperature control box for dry spinning of an elastic fiber according to an embodiment of the present invention
- Figure 5 is a cross-sectional view taken along line AA of Figure 4;
- a temperature control box for dry spinning of elastic fibers according to an embodiment of the present invention includes:
- box body 31 is longitudinally provided with a plurality of mutually separated polymer solution channels 32;
- a region of the tank 31 other than each of the polymer solution passages 32 is a cavity 33 for circulating a polymer solution for elastic fiber dry spinning in the polymer solution passage 32.
- An intermediate member 35 is provided in the polymer solution passage 32 for reducing the temperature difference between different portions of the polymer solution flowing out of the polymer solution passage 32.
- the temperature control box provided by the embodiment of the invention can be used in the dry spinning production process of elastic fibers such as spandex. Since the influence of the temperature on the viscosity of the polymer solution for preparing the spandex is relatively large, the temperature control box provided by the embodiment of the present invention is used in the dry spinning process of the spandex, and the beneficial effects obtained are also more obvious.
- the chemical raw materials required for the production of elastic fibers are polymerized to form a polymer solution, and the polymer solution is metered and distributed by a metering device to form a flow of each polymer solution, and each polymer solution solution flows into the temperature control box.
- the polymer solution flowing into the channels of each polymer solution acts as an intermediate member disposed in each polymer solution channel to reduce the polymer solution flowing out through the respective polymer solution channels 32.
- the temperature difference between the different portions is such that the polymer solution flowing out through the respective polymer solution channels 32 is kept at a constant temperature and uniform in viscosity.
- the constant temperature and uniform viscosity of the polymer solution enters the spinneret in the dry spinning production process for spin coating, which is beneficial to ensure the rheological property of the polymer solution entering the spinneret, so that the spinneret is ejected.
- the tow is stabilized, thereby increasing the product quality of the prepared fiber.
- the specific structure of the intermediate member 35 is not limited in the present invention, and a specific structure that can realize the function of the intermediate member 35 can be designed according to actual needs.
- the intermediate member 35 includes: a static mixer 350 for dispersing and mixing the polymer solution entering the channel of the polymer solution to reduce different radial portions of the polymer solution. Temperature difference.
- the specific structure of the static mixer can be designed according to actual needs, and the comparison of the present invention is not limited.
- the static mixer 350 may employ a twist-like structure as shown in Figure 6a by which the polymer solution alternately flows clockwise and counterclockwise in the polymer solution channel to increase the polymer solution and polymer.
- the frequency of heat exchange of the pore walls 320 of the solution channels increases the heat exchange efficiency of different portions of the polymer solution, thereby minimizing the temperature differential across different portions of the polymer solution flowing out of the polymer solution channels.
- the static mixer 350 can employ a cross-over structure as shown in Figure 6b, by which different portions of the polymer solution are split and remixed multiple times in the polymer solution channel to increase polymer solution and polymerization.
- the heat exchange frequency of the pore walls 320 of the solution channel also increases the heat exchange between different parts of the polymer solution, improves the heat exchange efficiency of different parts of the polymer solution, thereby minimizing the passage through the polymer solution.
- the intermediate member 35 includes a diverting portion 351 for converting a cross-sectional shape of the polymer solution entering the polymer solution channel from a solid shape to a hollow annular shape.
- the solid shape means that the polymer solution in the channel of the polymer solution as a whole forms a stream, and the inside of the stream has no spatial distribution like a cavity.
- the hollow annular shape means that the polymer solution in the polymer channel forms a stream distributed in a ring shape, the center portion of the stream having a spatial distribution similar to a cavity. Since the polymer solution in the polymer solution channel 32 is through the polymer solution channel 32 The wall surface exchanges heat with the fluid medium 34 in the cavity 33.
- the solution converts the cross-sectional shape of the polymer solution entering the polymer solution channel into a hollow annular shape through the diverting portion, so that the polymer solution diameter
- the distribution is as close as possible to the polymer solution channel 32, increasing the contact area of the heat exchange so that different portions of the polymer solution radially, through the wall of the polymer solution channel 32 and the fluid medium within the cavity 33, achieve sufficient, uniform heat. Exchange, thereby reducing the temperature difference between different portions of the polymer solution in the radial direction.
- the solid shape is a circular shape
- the hollow annular shape is a circular ring shape, and the solution can be more matched with the case of a circular polymer solution channel, thereby improving heat exchange efficiency and Uniformity.
- the flow dividing portion 351 includes: an inlet liquid portion 3511, a liquid discharge portion 3512, and a flow guiding portion 3513; the liquid inlet sub-portion 3511 and the flow guiding sub-portion 3513 are disposed in the longitudinal direction; the liquid discharge The sub-portion 3512 communicates with the liquid inlet sub-portion 3511 for drawing the polymer solution entering the liquid-injecting sub-portion 3511 to the outer wall of the flow guiding sub-portion 3513 and flowing down the outer wall.
- the polymer solution metered and distributed by the metering device flows into the liquid inlet portion, and the cross-sectional area of the polymer solution flowing into the liquid inlet portion is a solid stream (such as a polymer solution stream having a circular cross section). And then flowing out through the liquid outlet portion and flowing along the outer wall of the flow guiding portion, there is no polymer solution inside the guiding portion, and the cross section of the polymer solution flowing down the outer wall of the guiding portion is a hollow stream (such as a cross section)
- the annular polymer solution stream 39) thus increases the contact area of the polymer solution with the wall surface of the polymer solution passage 32 so that different portions of the polymer solution pass radially through the wall of the polymer solution passage 32. A sufficient, uniform heat exchange with the fluid medium within the cavity 33 is achieved thereby reducing the temperature differential across different portions of the polymer solution in the radial direction.
- the inner diameter of the liquid inlet sub-portion 3511 is smaller than the outer diameter of the flow guiding sub-portion 3513, and the liquid discharging sub-portion 3512 has an expanded structure.
- the outlet of the liquid discharge sub-portion 3512 having an expanded structure is distributed along the outer edge of the flow guiding sub-portion 3513.
- the polymer solution in the liquid inlet sub-portion 3511 having a smaller inner diameter can be led out through the outlet of the liquid-extracting portion 3512, and the outer diameter is larger.
- the outer wall of the sub-portion 3513 flows down (see the arrow of FIG. 7a for the flow of the polymer solution), whereby the cross section of the polymer solution is converted from a solid shape such as a circle to a hollow ring shape such as a circular ring.
- the liquid inlet sub-portion 3511 includes a hollow cylinder liquid inlet portion 35111 and an inverted frustum distribution portion 35112 which are disposed in the longitudinal direction; the upper surface of the inverted frustum distribution portion 35112 communicates with the hollow cylinder liquid inlet portion 35111 The lower surface is non-connected to the flow guiding portion 3513; the inlet of the liquid discharging sub-portion 3512 having the expanded structure communicates with the side surface of the inverted frustum distributing portion 35112.
- the flow guiding sub-portion may have a cylindrical structure, and the guiding sub-portion may be designed as a hollow or solid structure according to actual needs, and the hollow structure is also beneficial to save consumables.
- the liquid inlet sub-section of the solution has a compact structure, and the solution can effectively disperse a small bundle of polymer solution entering the polymer solution channel from a solid circular stream to a circle centered on the waveguide.
- An annular stream thereby increasing the flow of polymer solution on the outer wall of the flow guide
- the contact area of the wall of the polymer solution channel thereby increasing the efficiency and uniformity of heat exchange through the wall to the heat exchange medium in the cavity.
- the intermediate component provided by the solution has a lower structural cost.
- the inner diameter of the liquid inlet portion 3511 is larger than the outer diameter of the flow guiding portion 3513, and the liquid discharging portion 3512 is disposed at the liquid inlet.
- the bottom surface of the portion 3511 is distributed along the outer edge of the flow guiding portion 3513.
- the polymer solution in the liquid inlet portion 3511 having a larger inner diameter can be taken out through the outlet of the liquid outlet portion 3512 and then flowed along the outer wall of the smaller outer diameter guide portion 3513 (refer to the flow of the polymer solution) The arrow of Figure 7b), thereby converting the cross section of the polymer solution from a solid shape to a hollow annular shape.
- the liquid inlet sub-portion has a hollow cylindrical structure
- the flow guiding sub-portion has a cylindrical structure, thereby realizing conversion of a cross section of the polymer solution from a circular solid shape to a hollow shape such as a circular ring shape. Ring shape.
- the intermediate member may further include: a confluence portion 352 connected to the lower portion of the diverting portion 351 for converging the polymer solution flowing out of the diverting portion 351 into a solid stream.
- the confluence has a tapered structure.
- the polymer solution flowing down the outer wall of the flow guiding portion re-converges into a solid stream after passing through the confluent portion 352 having a structure such as a taper, thereby facilitating the polymer.
- the polymer solution flowing out of the solution channel flows exactly into the spinneret for subsequent spinning.
- the intermediate component provided by the solution has a lower structural cost.
- At least one inlet of the polymer solution channel 32 of the plurality of polymer solution channels is provided with a sealing ring 36, for example, in each of the polymer solution channels 32.
- the inlet is provided with a sealing ring 36 to prevent the polymer solution from flowing into the cavity.
- the tank body 31 is further provided with a fluid medium inlet 371 and a fluid medium outlet 372.
- the fluid medium 34 flows into the cavity 33 through the fluid medium inlet 371 and passes through the chamber.
- the fluid medium outlet 372 flows out of the tank 31.
- the solution facilitates flow control of the fluid medium in the cavity by providing an inlet and an outlet of the fluid medium on the tank, rapidly exchanges heat with the polymer solution in the polymer solution passage through the flow of the fluid medium, and controls the fluid.
- the temperature of the medium is such that the polymer solution in the channel of the polymer solution is uniformly thermostated.
- the position design of the fluid medium inlet 371 and the fluid medium outlet 372 can be determined according to actual needs.
- the fluid medium inlet 371 is disposed at a portion of the upper surface of the casing 31 near a side of the casing 31, and the fluid medium outlet 372 is disposed on the upper surface of the casing 31 near the casing. The portion of the other side of the body 31.
- the solution facilitates the sufficient flow of the fluid medium in different parts of the cavity to ensure the constant temperature of the fluid medium in the cavity, thereby maintaining the thermal insulation of the polymer solution in the polymer solution channel.
- the temperature control box further includes: a filtering component 38 disposed under the intermediate component 35 for filtering the polymer solution flowing out of the intermediate component 35.
- the filter component 38 can include, but is not limited to, a screen. The arrangement of the filter member under the intermediate member facilitates reducing the impurity content of the polymer solution entering the spinneret, thereby facilitating the improvement of product quality and prolonging the maintenance cycle of the spinneret replacement or cleaning.
- the elastic fiber dry spinning assembly may further include a metering device 1 as shown in FIGS. 10-11f, the metering device 1 and the
- the temperature control box 3 is detachably connected for metering and dispensing the polymer solution for the elastic fiber dry spinning to a plurality of the polymer solution channels.
- the solution organically integrates the components of the measuring device 1, the temperature control box 3, the spinning section 4 and the like from top to bottom into a spinning assembly as a whole, and the two can be detachably connected, and the implementation is very flexible and the structure is very flexible.
- a heat insulation board 6 is disposed between the metering device 1 and the temperature control box 3 for reducing heat exchange of the temperature control box 3 to the metering device 1.
- the heat exchange fluid medium needs to be circulated in the cavity of the temperature control box for the purpose of temperature control of the polymer solution, and the temperature of the fluid medium and/or the fluid medium can be determined according to actual process conditions.
- the metering device and the temperature control box are detachably connected in the upper and lower order, and the solution may be adversely affected by the different types and/or different temperature fluid mediums.
- the heat insulation plate is arranged between the two to thermally isolate the two, thereby reducing the heat that may be transferred to the metering device by the temperature control box, thereby ensuring the guarantee The quality of the product.
- the material selected for the heat insulation board may be determined according to actual needs, and may be, but not limited to, a material that is not thermally conductive, such as a resin; the specific structure of the heat insulation board can be flexibly designed under the premise that the fiber production is normal; The embodiments of the present invention are not limited thereto.
- the spinning member is further provided with a second rotating device for rotating the spinning member to change the orientation of the spinning portion away from the side of the temperature control box.
- the orientation of the side of the spinning section away from the temperature control box may be changed by the second rotating means rotating the spinning member in whole or in part so that the spinning section is rotated away from the side of the temperature control box
- At least one component in the spinning section is convenient for a state of operation such as disassembly, installation, cleaning or maintenance, and the state may include, but is not limited to, an upward state in which the spinning assembly is rotated at a certain angle (for example, 180 degrees) in whole or in part. . This solution improves the ease of handling, installation, cleaning or maintenance.
- the metering device comprises at least one inlet and a plurality of outlets, at least a plurality of outlets are linearly arranged; at least a plurality of inlets and outlets of the polymer solution passages of the temperature control box are linearly arranged; At least a plurality of orifice groups of the spinning section are linearly arranged. At least a plurality of outlets of the metering unit in the metering device are arranged in a non-linear arrangement (for example, the metering device comprises at least one first metering device 11 , an outlet of a plurality of metering units of a metering unit 111 of a first metering device 11 The center trajectory of the 1112 is a circle 1113 as shown in FIG.
- the central trajectory of the outlet 1122 of the plurality of interface conversion portions of the interface conversion portion 112 of the device 11 is a straight line 1124 as shown in FIG. 11c, and is at the inlet of at least a plurality of the polymer solution channels of the temperature control box.
- the central trajectory is a line 323 as shown in Figure 11d; the outlet of at least a plurality of said polymer solution channels of the temperature control box (e.g., the center of the outlet 322 of the plurality of polymer solution channels of the temperature control box 3)
- the trajectory is in a straight line 324) as shown in FIG. 11e, and is linearly arranged corresponding to at least a plurality of nozzle groups of the spinning portion and correspondingly connected (for example, the plurality of nozzle holes 41 of the spinning section 4)
- the center trajectory is a straight line 413 as shown in Fig. 11f.
- the “non-linear arrangement” includes a plurality of inlets or outlets as a group or divided into groups, and the arrangement manner of each group of inlets or outlets is arranged in a non-linear manner, for example, each Group inlets or outlets are distributed over a circle or arc, etc.;
- the "consistent non-linear arrangement” includes the same or similar non-linear arrangement of different groups of inlets or outlets, for example, different groups of imports or exports Arranged on a circumference or arc of the same radius and connected in one-to-one correspondence, or different sets of inlets or outlets are dispersedly arranged on a circumference or arc having a different radius and are in one-to-one correspondence;
- the "linear arrangement” includes a plurality of inlets Or the outlets are grouped or divided into groups, and the arrangement of the inlets or outlets of each group is arranged in a straight line manner.
- each group of inlets or outlets are respectively arranged in a straight line or dispersedly arranged in a plurality of parallels with a certain interval.
- the "corresponding linear arrangement” includes the same or similar linear arrangement of different sets of inlets or outlets.
- the "circumference”, “arc”, “straight line” are used to indicate the approximate trajectory shape of a plurality of inlet or outlet center lines or contours.
- the metering device of the conventional technology adopts the metering pump head 34a as shown in FIG. 34
- the metering pump head 34a is a standard product of the pump head manufacturer, and generally includes an inlet and a plurality of outlets.
- the outlet 34b of the metering pump head is non-linearly dispersedly arranged on one or more circumferences
- the inlet 34e (s) of the spinning assembly is linearly dispersed in two linear lines with a certain interval, the metering pump head
- the non-linear arrangement of the outlets 34b and the linear arrangement of the inlets of the spinning assemblies 34d are not corresponding.
- a metal hose 34c is usually required.
- 34b is connected via a portion of the metal hose 34c to the inlet 34e of the partial spinning assembly.
- the outlet of the metering device and the inlet connection of the spinning assembly need to be used.
- Many metal hoses add a lot of connectors, which increases the possibility of forming leaks.
- the length and bending degree of different metal hoses are difficult to ensure the same, which may result in a metered solution.
- the flow before the flow reaches the spinneret in the spinning assembly is different, so the rheology of the solution sprayed through the spinneret may be different, especially for the finer solution flow, which results in a larger spin box.
- the physical properties of the spandex coming out may be inconsistent.
- the outlet of the metering device and the inlet of the spinning assembly do not need to be metal hoses and can be directly connected, the defects that may be caused by the use of metal hose connections in the prior art can be overcome.
- the metering device 1 can include one or more first metering devices, and the temperature control box is detachably coupled to at least one of the first metering devices.
- the first metering device 11 may include: at least one metering unit 111 and at least one interface converting portion 112, wherein: the metering unit 111 includes at least one inlet and a plurality of outlets, and the metering Multiple of unit 111 The interface is in a non-linear arrangement; the interface conversion portion 112 includes a plurality of inlets and a plurality of outlets correspondingly connected through the plurality of flow-converting channels, at least a portion of the inlet of the interface conversion portion 112 and a metering unit At least partially exiting and correspondingly communicating, a plurality of outlets of the interface conversion portion 112 are linearly arranged, wherein at least a portion of the outlet of the interface conversion portion 112 and at least a portion of the polymer solution of the temperature control box 3
- the channels are in a
- a polymer solution for dry spinning of fibers such as spandex flows through the inlet of the metering unit for precise metering and distribution, and the metering unit measures a small number of small strands.
- the solution flow is distributed to the inlet of each of the interface conversion portions, and flows out from the outlet of the interface conversion portion via the respective respective flow conversion conversion channels.
- the solution flow flowing out through the outlet of the interface conversion portion enters a spinning assembly in a subsequent process of fiber spinning such as spandex for filtration, heat preservation and/or spinning, and the discharged tow is
- the solvent is volatilized in a cavity spinning box containing a high temperature to form a fiber tow such as spandex.
- the inlet, the diversion conversion channel and the outlet of the interface conversion part may be designed as different parts that communicate with each other according to the needs of the actual process, or may be designed as different parts of an integral part, such as an inlet and an outlet respectively.
- the embodiments of the present invention do not limit the two ends of the flow conversion channel.
- the interface conversion unit is added to the metering device, and the plurality of outlets of the metering unit that are non-linearly arranged are directly connected to the plurality of inlets that are non-linearly arranged by the interface conversion unit.
- the plurality of inlets of the interface conversion unit that are non-linearly arranged are connected to the plurality of outlets that are linearly arranged through the plurality of flow-converting conversion channels, thereby finally converting the nonlinear arrangement of the outlets of the metering units into linear Arrangement.
- the metering device can be applied to, but not limited to, fiber dry spinning production such as spandex, in order to realize the straight matching of the plurality of inlets linearly arranged in the downstream process such as the spinning assembly and the fiber spinning component. even.
- a metering device is used to accurately meter and distribute the polymer solution for spandex preparation, and to deliver the metered and dispensed small solution stream separately to the spinning assembly for spandex formation.
- Process processing At present, the plurality of inlets of the spinning assembly are mainly arranged in a linear arrangement.
- the linear arrangement of the outlets of the interface conversion portion in the metering device provided by the embodiment of the present invention can be correspondingly designed according to the linear arrangement of the plurality of inlets of the spinning assembly, so that
- the metering device provided by the embodiment of the invention can convert the non-linear arrangement of the existing metering unit into the outlet of the linear array to match the linear arrangement of the plurality of inlets of the spinning assembly (eg, the linear arrangement is the same) And the position corresponds to), thereby realizing that the metal hose can be directly connected between the outlet of the metering device and the inlet of the spinning assembly, thereby saving the space required for arranging the metal hose joint, and the space saved can be arranged more.
- the multiple solution flow inlets and outlets allow the spinning assembly to eject more tows in a limited space, thereby increasing efficiency and reducing production costs.
- the interface conversion unit and the meter is provided to improve the convenience of cleaning and maintenance.
- the number of the metering units may be determined according to actual production requirements, and may be one or more.
- the metering unit is a component for realizing the precise metering and dispensing function of the polymer solution for fiber production such as spandex. To realize this function, the specific device structure of the metering unit is not limited. In practical applications, it is optional but not limited to Standard metering pump from the manufacturer.
- the quantity of the inlet and the outlet of the metering unit can also be determined according to the actual production requirements.
- the metering unit can include one inlet or multiple inlets, one or more outlets, and multiple measuring units.
- the outlet is symmetrically and non-linearly arranged around the inlet of the metering unit, and the polymer solution for spandex production flows in through the inlet of the metering unit, and is accurately metered and distributed into a plurality of equal small solution streams through a plurality of outlets of the metering unit.
- an inlet 1111 of the metering unit is located at a center of a circle, and an outlet 1112 (a plurality of outlets) of the metering unit is dispersedly arranged in a plurality of concentric circles. On the circumference of 1113, this solution can place more outlets on the metering unit 111.
- a plurality of outlets of the metering unit may be dispersedly arranged on a circumference or an arc; or, a plurality of outlets of the metering unit are also dispersedly arranged.
- the embodiment of the present invention is not limited to the arcs of a plurality of concentric circles.
- the number of the interface conversion sections may be determined according to actual production requirements, and may be one or more.
- the interface conversion unit is a component for realizing the non-linear arrangement of the outlet of the metering unit to the linear arrangement conversion. To implement this function, the specific device structure of the interface conversion unit is not limited.
- the interface conversion unit includes a plurality of inlets, a plurality of outlets, and a plurality of flow-converting conversion channels, and an inlet is connected to an outlet via a flow-converting conversion channel. In an optional implementation manner, as shown in FIG.
- an interface conversion portion 112 includes a plurality of inlets and a plurality of outlets, and a non-linear arrangement of the inlets 1121 (at least a portion of the inlets) of the interface conversion portion and an outlet 1112 of the metering unit
- the non-linear arrangement of the plurality of outlets corresponds to at least part of the inlet of the interface conversion portion being arranged on a circumference or an arc, or dispersedly arranged on a circumference or an arc of a plurality of concentric circles, for example:
- the inlets 1121 (at least partially inlets) of the interface conversion portion may be dispersedly arranged on the circumference of the plurality of concentric circles 1123.
- outlets 1112 the plurality of outlets of one of the metering units are dispersedly arranged on a circumference
- the inlets 1121 (at least part of the inlets) of the interface conversion portion are also correspondingly arranged on a circumference; an outlet 1122 (a plurality of outlets) of the interface conversion portion is dispersedly arranged on a plurality of parallel lines having a certain interval, such as Dispersely arranged on two parallel lines with a certain interval.
- the solution can arrange more outlets on the interface conversion part and the layout structure is more compact to meet the application requirements of higher density spinning; of course, if the space permits or the number of outlets is not large, the interface conversion part
- the outlets are also arbitrarily arranged on a line 1124, as shown in FIG. 13c, which is not limited by the embodiment of the present invention.
- a sealing ring may be disposed at a corresponding connection between the outlet 1112 of the metering unit and the inlet 1121 of the interface conversion portion to prevent the solutions of the different outlets of the metering unit from circulating with each other, thereby ensuring accurate measurement results.
- the nonlinear (eg, circumferential) arrangement of the plurality of outlets of the metering unit is A non-linear (eg, circumferential) arrangement of at least a portion of the inlet of the interface conversion portion, a linear (eg, linear) arrangement of the plurality of outlets of the interface conversion portion, and a spinning process in the dry spinning process of the spandex dry spinning process
- the linear (e.g., linear) arrangement of the inlets of the components corresponds to thereby converting the non-linear layout of the metering unit outlets to the linear layout required for the inlet of the spinning components via the interface conversion.
- the number of metering units, interface conversion parts and their assembly relationships can be flexibly selected according to actual needs such as actual capacity and equipment layout convenience.
- the metering device shown in FIG. 12 may include a metering unit 111 and an interface converting portion 112, and the plurality of outlets of the metering unit 111 are nonlinearly corresponding to the plurality of inlets of the interface converting portion 112 (eg, circumference) Arranging and correspondingly communicating, the plurality of inlets of the interface conversion unit 112 are respectively connected to the plurality of outlets of the interface conversion unit 112 via the plurality of flow conversion conversion channels inside the interface conversion unit, and the interface conversion unit is
- the outlets are arranged linearly (e.g., in a straight line), corresponding to the linear arrangement of the plurality of inlets of the spinning component in the subsequent process of the spandex dry spinning, facilitating direct docking of the two.
- the solution can arrange one or more metering devices according to actual capacity and process requirements, and directly connect a plurality of metering devices arranged with a spinning component to meet the application requirements of higher density spinning.
- the metering device shown in FIG. 14 may include a plurality of metering units 111 (two metering units are illustrated in the figure) and an interface converting unit 112, and multiple outlets of each metering unit 111 and the interface are converted.
- a part of the inlets of the part are arranged in a corresponding non-linear (such as a circumferential shape) and are correspondingly connected.
- the plurality of inlets of the interface conversion part 112 are respectively connected to the plurality of flow-converting channels inside the interface conversion part and the interface conversion part 112.
- outlets are correspondingly connected, and the plurality of outlets of the interface conversion portion are arranged linearly (such as in a straight line), corresponding to the linear arrangement of the plurality of inlets of the spinning component in the subsequent process of the spandex dry spinning, which is convenient for the direct Docking.
- a plurality of metering units share an interface conversion unit, and the nonlinear outlet arrangement manner of the plurality of metering units is converted to the linear outlet arrangement mode, and the structure is compact and the space utilization rate is high.
- the metering device shown in FIG. 15 may include one metering unit 111 and a plurality of interface converting portions 112 (two interface converting portions are illustrated in the figure), at least a part of the outlet of the metering unit 111 and an interface
- the inlets of the conversion portion are arranged in a corresponding non-linear (such as an arc shape) and are correspondingly connected.
- the plurality of inlets of each of the interface conversion portions 112 and the plurality of current-converting conversion channels inside the interface conversion portion are respectively associated with the interface conversion portion 112.
- the plurality of outlets are correspondingly connected, and the plurality of outlets of the interface conversion sections are arranged linearly (eg, linearly), corresponding to the linear arrangement of the plurality of inlets of the spinning component in the subsequent process of the spandex dry spinning, which is convenient for the two Direct docking.
- the two interface conversion parts share one metering unit, and realize the conversion of the non-linear outlet arrangement mode of the metering unit to the linear outlet arrangement mode, the structure is compact, the layout is flexible, and the space utilization rate is high.
- the interface conversion portion in order to reduce the thickness of the interface conversion portion, includes: at least one first distribution plate and at least one second distribution plate connected to each other;
- the first distribution plate includes a plurality of through holes, and an inlet of at least a portion of the through holes of the first distribution plate is correspondingly non-linearly arranged and correspondingly connected to an outlet of the metering unit;
- Distribution The plate includes a plurality of flow guiding conversion channels and a plurality of through holes, one end of a flow guiding conversion channel of the second distribution plate is connected to an outlet of a through hole of the first distribution plate, and the other end is connected to the second An inlet of a through hole of the distribution plate, and an outlet of the plurality of through holes of the second distribution plate are linearly arranged.
- the number and/or assembly relationship of the first distribution plate, the second distribution plate, and the metering unit can be determined according to actual needs, and the implementation manner is very flexible, and can meet the practical application requirements of different equipment assembly and process production.
- an interface conversion portion 112 includes a first distribution plate 11201 and a second distribution plate 11202.
- the first distribution plate 11201 includes a plurality of through holes, and a through hole 112011 of the first distribution plate.
- the inlet is arranged in a non-linear (eg, circumferential) manner with the outlet 1112 of the metering unit.
- the second distribution plate 11202 and the first distribution plate 11201 are connected to each other with a plurality of diversions.
- each of the diversion conversion channels 112021 is connected to the outlet of the through hole 112011 of the first distribution plate, and the other end is connected to the inlet of the through hole 112022 of the second distribution plate, the second distribution plate
- the exits of the through holes 112022 are linearly arranged, such as being dispersedly arranged on two parallel lines having a certain interval.
- the metering device includes two metering units 111, a first distribution plate 11201, and a second distribution plate 11202.
- the plurality of outlets of each metering unit 111 are arranged in a non-linear (e.g., circumferential) arrangement with the inlets of the partial through holes of the first distribution plate 11201, and the two metering units share a first distribution plate and a second distribution plate.
- the metering device includes two metering units 111, two first distribution plates 11201, and a second distribution plate 11202.
- the plurality of outlets of each metering unit 111 are arranged in a non-linear (eg, circumferential) manner with the inlets of the plurality of through holes of a first distribution plate 11201, each metering unit corresponding to a first distribution plate, and two metering units and The two first distribution plates share a second distribution plate.
- the metering device includes a metering unit 111, two first distribution plates 11201 and two second distribution plates 11202, inlets of the plurality of through holes of the two first distribution plates 11201 and the metering
- the plurality of outlets of the unit 111 are arranged in a corresponding non-linearity (such as a circumferential shape), and the outlets of the plurality of through holes of each of the first distribution plates 11201 correspond to the plurality of through holes of a second distribution plate 11202 via the flow guiding conversion channel.
- Connected, and the outlets of the plurality of through holes of each of the second distribution plates 11202 are linearly arranged (e.g., linear).
- the metering unit 111 and the first distribution plate 11201 are detachably connected, and/or the first distribution plate 11201 and the second distribution plate 11202 are detachably connected.
- the two can be connected by, but not limited to, the bolts 113 to achieve detachable separation of the two, and the convenience of maintenance such as cleaning is improved.
- a sealing ring may be disposed between the inlet of the through hole 112011 of the first distribution plate and the outlet 1112 of the metering unit. 11203, to avoid the circulation of solutions of different outlets of the metering unit, thereby ensuring accurate measurement results.
- a sealing member 11204 is disposed at a corresponding connection between the outlet of the through hole 112011 of the first distribution plate and one end of the flow guiding conversion channel 112021 of the second distribution plate to avoid the interface conversion portion. The solutions in the different flow-converting channels are circulated to each other, thereby ensuring accurate measurement results.
- the first distribution board may be set to one level according to actual needs (as shown in FIG. 16), or may be designed as multiple stages.
- the first distribution board 11201 includes a plurality of first distribution daughter boards 11201 ′, wherein the first distribution daughter board 11201 ′ includes a plurality of through holes, and the outlets of the through holes of the first distribution daughter boards 11201 ′ of each stage are non-linearly arranged,
- the first distribution daughter board 11201' is sequentially stacked and correspondingly connected, wherein an inlet of a through hole of the first first distribution daughter board 11201' (ie, the first distribution daughter board closest to the outlet of the metering unit) is An outlet of the metering unit is correspondingly connected, and an outlet of the first distribution daughter board (ie, the first distribution daughter board closest to the second distribution board) of the last stage and an outlet of the second distribution board One end of a flow guiding conversion channel is correspondingly connected.
- a second distribution plate may be set to one level according to actual needs (as shown in FIG. 15), or may be designed as multiple stages, as shown in FIG. 21, and the second distribution plate 11202 includes a plurality of second distribution daughter boards 11202', wherein the second distribution daughter board 11202' includes a plurality of flow conversion channels and a plurality of through holes, and each of the through holes of the second distribution daughter board 11202' of each stage
- the outlets are linearly arranged, and the plurality of second distribution daughter boards 11202' are sequentially stacked and correspondingly connected, wherein the primary second distribution daughter board 11202' (ie, the second distribution partner closest to the first distribution plate outlet)
- One end of a flow guiding conversion channel of the plate is in communication with an outlet of the first distribution plate, and an inlet of the flow guiding conversion channel of the second distribution daughter plate of the second stage and the second distribution of the upper stage
- the outlets of the through holes of the daughter board are correspondingly connected.
- the second distribution plate as a multi-stage second distribution daughter plate structure
- the linear arrangement of the plurality of outlets of the first distribution plate can be converted into a linear arrangement of larger or smaller adjacent outlet spacings. Therefore, the process difficulty is reduced, so that the outlet arrangement of the second distribution plate after conversion is better matched and directly docked with the inlet of the spinning box of the dry spinning process of the spandex.
- the metering device further comprises: at least one driving device, drivingly connected to at least one of the metering units.
- the driving device may include, but is not limited to, a speed reducing motor 115.
- the speed reducing motor 115 may be drivingly connected to the metering unit through a connecting member such as the coupling 116 to implement solution metering for the metering unit. Precise control of the distribution.
- the number of the driving devices may be correspondingly set according to the number of the measuring units.
- At least a portion of the metering units may also share a driving device, such as two metering units sharing a geared motor for driving control, which reduces the drive required for the metering device.
- a driving device such as two metering units sharing a geared motor for driving control, which reduces the drive required for the metering device.
- the total number of devices simplifies the structure of the equipment and saves equipment costs.
- the interface conversion unit further includes at least a solution inlet, wherein the solution inlet is in communication with at least one inlet of a metering unit via a solution flow channel.
- a solution inlet is in communication with at least one inlet of a metering unit via a solution flow channel.
- an interface conversion portion includes one or more solution inlets 1141 and one or more solution flow guiding channels 1142, and each solution inlet 1141 passes through a solution guiding channel 1142.
- the solution inlet of the interface conversion unit can provide a total inlet of a solution such as a spandex dry spinning polymer for the metering unit, thereby improving the integration degree of the interface conversion portion,
- the overall structure of the metering device is more compact and improves space utilization.
- an embodiment of the present invention further provides an elastic fiber dry spinning component.
- the elastic fiber dry spinning component comprises: a spinning assembly and at least one of the metering devices provided by any one of the above technical solutions, wherein the spinning assembly is connected to each of the metering devices, wherein the interface conversion At least a portion of the outlet of the portion is linearly aligned and correspondingly communicated with at least a portion of the inlet of the spin pack, and the polymer solution enters the spinning through at least an inlet of the metering unit and an outlet of the interface converter Component.
- the spinning assembly comprises a plurality of inlets, and the plurality of inlets are linearly arranged.
- the plurality of inlets of the spinning assembly may be dispersedly arranged in a straight line, or The plurality of inlets of the spinning assembly can be dispersedly arranged on a plurality of parallel straight lines having a certain interval.
- the metering device can accurately meter and distribute the polymer solution, and convert the non-linear arrangement of the plurality of outlets of the metering unit into a linear arrangement corresponding to the linear arrangement of the plurality of inlets of the spinning assembly, and can The inlet of the spinning assembly is mated directly.
- the polymer solution enters into the spinning assembly through at least one inlet of the metering unit and an outlet of the interface conversion portion, is filtered, insulated, and ejected through the spinneret to enter a cavity spinning box containing high temperature.
- the solution stream is processed in a spinning box to form a tow, and the tow is wound to form a spandex.
- the elastic fiber dry spinning component provided by the embodiment of the invention realizes that the metal hose can be directly connected between the outlet of the metering device and the inlet of the spinning component, thereby saving the space required for arranging the metal hose connector.
- the space saved can be arranged with more solution flow inlets and outlets, so that the spinning assembly can spray more tows in a limited space, thereby improving efficiency and reducing production cost of the product.
- the number of the metering devices may be determined according to actual production requirements, and may be one or more, and the implementation manner is very flexible.
- a spinning assembly may be disposed under the metering device as shown in FIG. 12 to form a spinning assembly.
- the elastic fiber dry spinning component directly matches the outlet of the interface conversion portion 112 with the inlet of the spinning assembly; or, as shown in FIG. 14, FIG. 15, FIG. 16, FIG. 18, FIG. 19, FIG. 21.
- a spinning assembly is disposed under the metering device of any of Figures 22a and the like, and the outlet 1122 of the interface conversion portion is directly coupled to the inlet of the spinning assembly, or the outlet of the through hole 112022 of the second distribution plate is Matching directly with the inlet of the spinning assembly, or directly connecting the outlet of the through hole of the second distribution daughter plate 11202' with the inlet of the spinning assembly, etc., thereby saving the need for arranging the metal hose connector Space, improve space utilization and spinning efficiency, and reduce production costs of products.
- the spinning assembly is pluckable Use, but is not limited to, any of the spinning assemblies provided by embodiments of the present invention.
- the spinning assembly is detachably coupled to at least one of the metering devices to further improve the convenience and efficiency of equipment cleaning, maintenance, and the like.
- the metering device 1 may include one or more second metering devices, and the temperature control box is detachably coupled to at least one of the second metering devices.
- the second metering device 12 may include: at least one metering unit 121 and at least one first conversion board 122;
- the metering unit 121 includes at least one inlet
- At least one side of the metering unit 121 is provided with a plurality of outlets arranged in a non-linear arrangement, and correspondingly connected to a plurality of inlets arranged on at least one side of the first conversion plate 122 in a corresponding non-linear arrangement;
- a lower end surface of the first conversion plate 122 is provided with a plurality of outlets arranged in a line, and an inlet and an outlet of the first conversion plate are connected by a flow guiding conversion channel;
- the outlet of the first conversion plate 122 is linearly aligned and correspondingly connected to at least a portion of the polymer solution passage of the temperature control box, and the polymer solution for the elastic fiber dry spinning is at least An inlet of the metering unit 121 and an outlet of the first converter plate 121 enter the corresponding polymer solution passage.
- a polymer solution for dry spinning of fibers such as spandex flows through the inlet of the metering unit for precise metering and distribution, and the metering unit measures a small number of small strands.
- the solution stream is distributed to the inlet of each of the first converter plates, and flows out from the outlet of the first converter plate after each of the corresponding flow conversion channels.
- the solution flow flowing out through the outlet of the first conversion plate enters a spinning assembly in a subsequent process of fiber spinning such as spandex for filtration, heat preservation and/or spinning, etc., and the tow is ejected.
- the solvent is volatilized in a cavity spinning box containing a high temperature to form a fiber tow such as spandex.
- the extension line of the central axis of the metering unit (shown by a broken line in the figure) is used as a reference line, and the surface of the metering unit along the left-right direction of the reference line is the left and right sides of the metering unit, and the surface of the left azimuth a surface of the right side of the metering unit is a right side surface of the metering unit;
- a first conversion board is connected to at least one of the left side surface and the right side surface of the metering unit, first a surface of the first conversion plate is a side surface of the first conversion plate, and is represented as a left side surface or a right side surface of the first conversion board according to a difference in relative left and right orientations;
- a metering unit is connected to at least one of the left side surface and the right side surface; the lower two surfaces of the first conversion board are respectively referred to as an upper end surface and a lower end surface.
- the inlet, the diversion conversion channel and the outlet of the first conversion plate may be designed as different parts that communicate with each other according to the needs of the actual process, or may be designed as different parts of an integral part, such as an inlet and an outlet respectively.
- the embodiments of the present invention do not limit this.
- the technical solution provided by the embodiment of the present invention adds the first conversion plate to the metering device, and on the one hand, the plurality of outlets of the measuring unit at least one side are non-linearly arranged and the first conversion is provided on the side thereof.
- the plurality of inlets of the non-linear arrangement of the plates are directly connected to each other.
- the plurality of inlets of the first conversion plate are arranged in a non-linear arrangement, and the plurality of current-converting switches are connected to each other in a linear arrangement. Since the plurality of outlets provided on the lower end surface of the first conversion plate are linearly arranged, the solution realizes converting the nonlinear arrangement of the outlets of the metering units into a linear arrangement.
- the metering device can be applied to, but not limited to, fiber dry spinning production such as spandex, in order to realize the straight matching of the plurality of inlets linearly arranged in the downstream process such as the spinning assembly and the fiber spinning component. even.
- a metering device is used for accurately metering and dispensing a polymer solution for spandex preparation, and a metered and dispensed small solution stream is separately delivered to the spinning assembly for carrying out The subsequent process of spandex formation.
- the plurality of inlets of the spinning assembly are mainly arranged in a linear arrangement.
- the linear arrangement of the outlets of the first conversion plate in the metering device provided by the embodiment of the present invention can be correspondingly designed according to the linear arrangement of the plurality of inlets of the spinning assembly, such that By using the metering device provided by the embodiment of the invention, the non-linear arrangement of the existing metering unit can be converted into the outlet of the linear array to match the linear arrangement of the plurality of inlets of the spinning assembly (such as linear arrangement).
- the metering unit and the first conversion board are detachably connected to improve convenience of cleaning, maintenance, assembly, and the like.
- the number of the metering units may be determined according to actual production requirements, and may be one or more.
- the metering unit is a member for realizing the precise metering and dispensing function of the polymer solution for fiber production such as spandex. To realize this function, the specific device structure of the metering unit is not limited.
- the quantity of the inlet and the outlet of the metering unit can also be determined according to the actual production requirements.
- the metering unit can include an inlet or a plurality of inlets, at least one side of the metering unit (as shown in Figure 23). The left side surface and/or the right side surface shown in FIG.
- the 24 may be provided with a plurality of outlets, and the plurality of outlets of the metering unit are symmetrically arranged centrally on the left side of the metering unit And/or the right side, such as spandex, fiber dry spinning polymer solution flows into the inlet of the metering unit, and after precise metering, is distributed into a plurality of equal small solution streams through a plurality of outlets of the metering unit.
- the outlet 1212 (the plurality of outlets) of the metering unit is dispersedly arranged on the circumference of a plurality of concentric circles 1213 on a certain side of the metering unit.
- This solution can deploy more outlets on the metering unit 121.
- a plurality of outlets of the metering unit may also be dispersedly arranged on a circumference or an arc of at least one side of the metering unit; or, The plurality of outlets are also arranged in a plurality of concentric circular arcs on a certain side, which is not limited in this embodiment of the present invention.
- the number of the first conversion plates may be determined according to actual production requirements, and may be one or more.
- the first conversion plate is a portion for realizing non-linear arrangement of the outlet of the metering unit to the linear arrangement conversion In order to realize this function, the specific device structure of the first conversion board is not limited.
- the first conversion plate includes a plurality of inlets, a plurality of outlets, and a plurality of flow guiding conversion channels, and an inlet is connected to an outlet via a flow guiding conversion channel; the plurality of inlets are non-linearly arranged on the first conversion plate At least one side, such as a left side of the first conversion plate, is non-linearly arranged with a plurality of inlets, and/or a right side of the first conversion plate is non-linearly arranged with a plurality of inlets; a plurality of outlets are linearly arranged at the first As shown in FIG.
- the lower end surface of the conversion plate 1214 can be opened as a straight line or a fold line according to actual needs; and a plurality of outlets provided on the lower end surface of the first conversion plate are dispersedly arranged.
- a first conversion plate 122 includes a plurality of inlets and a plurality of outlets, and an inlet 1221 (a plurality of inlets) of the first conversion plate disposed on a side of the first conversion plate a non-linear arrangement corresponding to a non-linear arrangement of the outlet 1212 (a plurality of outlets) of the metering unit disposed on a side of the metering unit, that is, a plurality of inlets provided on at least one side of the first converter board Dispersingly arranged on a circumference or a circular arc of the side surface, or dispersedly arranged on a circumference or a circular arc of a plurality of concentric circles of the side surface, for example, an inlet 1221 of the first conversion plate disposed on a side of the first conversion plate
- the (multiple inlets) may be dispersedly arranged on the circumference or arc of the plurality of concentric circles 1223 on the side.
- An outlet 1222 of the first conversion plate provided on a lower end surface of the first conversion plate 122 is dispersedly arranged on a plurality of parallel straight lines 1224 having a certain interval on the lower end surface.
- the solution can arrange more outlets on the first conversion board and has a compact layout structure to meet the application requirements of higher density spinning; of course, if the space permits or the number of outlets is small, the first one
- the plurality of outlets of the conversion plate are also arbitrarily arranged on a line 1224, as shown in FIG.
- two opposite sides of the metering unit are respectively connected to the first conversion board, that is, one of the two opposite sides of the metering unit is disposed in a non-linear arrangement.
- the outlets are respectively connected to a plurality of inlets corresponding to a non-linear connection provided on one side of the first conversion plate.
- each of the two sides of each metering unit 121 is connected to a first conversion plate 122, and the outlets of the lower end faces of the first conversion plates 122 are linearly arranged to be displayed on a different side.
- the non-linearly arranged outlets are each converted into a linearly arranged outlet.
- the two first conversion boards share a metering unit, which is compact in structure, flexible in layout, and high in space utilization.
- the outlets which are non-linearly arranged on different sides of the metering unit can be respectively converted into linearly arranged outlets to improve the efficiency of the outlet conversion.
- two opposite sides of the first conversion board are respectively connected to the metering unit, that is, a non-linear arrangement is provided on each of two opposite sides of the first conversion board.
- the plurality of inlets respectively correspond to a plurality of outlets connected to one side of the metering unit and corresponding to the non-linear connection.
- the two metering units of the solution share a first conversion board, the layout is flexible, and the space utilization rate is high, and the outlets which are non-linearly arranged on one side of the two metering units can be respectively converted into linearly arranged outlets through a first conversion board. To improve export conversion efficiency.
- At least one of the first conversion boards 122 is further provided with at least one solution.
- a liquid inlet 1225 wherein the solution inlet 1225 is connected to at least one inlet of the metering unit 121 via a solution flow guiding channel, so that the metering unit can supply the metering unit such as spandex dry spinning through the solution inlet of the first conversion plate.
- the total inlet of the solution such as the polymer for the wire improves the integration degree of the first conversion plate, so that the overall structure of the metering device is more compact and the space utilization rate is improved.
- the opening position of the solution inlet can be determined according to actual needs.
- the solution inlet 1225 can be disposed on the upper end surface of the first conversion plate 2 to improve layout flexibility.
- the solution inlet and the solution flow guiding channel may be provided on each of the first conversion plates according to actual needs, or may be selected in some of the first conversion plates.
- the solution inlet and the solution flow guiding channel are provided on the first conversion plate, and the implementation is very flexible, which is not limited by the embodiment of the present invention.
- the metering unit 121 is detachably connected to the first conversion board 122 to improve convenience and flexibility of cleaning, maintenance, assembly, and the like.
- the driving device may include, but is not limited to, a geared motor, which reduces the required use of the metering device.
- the total number of drives reduces the structure of the device and saves on equipment costs.
- the driving device may include a transmission shaft, at least a part of the metering unit is serially connected to the transmission shaft.
- the three metering units 121 share a driving device.
- the driving device comprises a transmission shaft 124.
- the three metering units 121 are serially connected in series on the transmission shaft.
- the metering device may further include: at least one second conversion board 125, and one of the second conversion boards 125 is provided.
- a through hole 1251, the inlet and the outlet of the plurality of through holes 1251 are linearly arranged on the upper end surface and the lower end surface of the second conversion plate 125, respectively; wherein at least a portion of the inlet of the through hole 1251 and the At least a part of the outlets 1222 of the plurality of first conversion plates arranged in a line arranged in a lower end surface of the first conversion plate 122 are correspondingly connected; at least a part of the outlets of the second conversion plate 125 and the temperature control At least a portion of the polymer solution channels of the tank are arranged in a corresponding linear arrangement and correspondingly connected, and the polymer solution for elastic spinning of the elastic fibers enters through at least one inlet of the metering unit 121 and an outlet of the
- the solution can adjust the outlet spacing of the first conversion plate and the like through the passage of the second conversion plate, thereby improving the matching of the measuring device with the equipment such as the spinning assembly in the dry spinning process of the fiber such as spandex.
- the connection of the plurality of first conversion plates is integrated as a whole by the second conversion, so that the stability of the overall metering device is also improved.
- the inlet and the outlet of the plurality of through holes 1251 of the second conversion plate 125 are linearly arranged on the upper end surface and the lower end surface of the second conversion plate, respectively, and may include:
- the inlet of the through hole 1251 is dispersedly arranged on the straight line 1252 of the upper end surface of the second conversion plate 125, and the outlets of the plurality of the through holes 1251 are dispersedly arranged in a line of the lower end surface of the second conversion plate 125.
- the inlets of the plurality of through holes 1251 are dispersedly arranged on the second conversion plate 125
- a plurality of parallel straight lines 1252 having a certain interval on the upper end surface, and an outlet of the plurality of the through holes 1251 are dispersedly arranged on a plurality of parallel straight lines 1252 having a certain interval on the lower end surface of the second conversion plate 125.
- the solution can meet the application requirements of multiple inlet matching direct connection of the metering device and the equipment such as the spandex in the dry spinning process, such as the spinning component, and the implementation is very flexible.
- the number of the second conversion boards may be determined according to actual production requirements, and may be one or more, and the implementation manner is very flexible.
- the number of the second conversion boards may be the same as the first conversion.
- the number of the plates is the same, or the number of the second conversion plates may be different from the number of the first conversion plates.
- the plurality of second conversion boards can share a first conversion board, that is, a plurality of outlets arranged in a linear arrangement of the lower end surface of the first conversion board are divided into multiple groups. Each set of outlets corresponds to an inlet of a plurality of through holes arranged in a line arranged by the second conversion plate.
- the solution can convert a plurality of outlets of the lower end surface of one first conversion plate into a plurality of second conversion plates to meet different linear arrangement of equipment such as a spinning assembly in a dry spinning process such as spandex.
- the import matches the direct connection of the outlets.
- a plurality of first conversion boards may share a second conversion board, that is, a plurality of through holes arranged in a linear arrangement of the second conversion board are divided into multiple groups, and each The inlet of the group of through holes corresponds to a plurality of outlets connected to the lower end surface of the first conversion plate and corresponding to the linear connection.
- a plurality of outlets each having a linearly arranged lower end surface of each of the six first conversion plates 122 are connected to the inlets of different through holes of the same second conversion plate 125, and the solution can be passed through a second conversion plate.
- the plurality of outlets of the lower end faces of the plurality of first conversion plates are converted into an outlet arrangement manner of a plurality of inlet matching direct connections which are arranged in different linear alignments of the spinning assembly, such as spandex, in a post-spinning process. And the stability of the overall metering device is improved.
- the first conversion board is detachably connected to the second conversion board to improve convenience and flexibility of cleaning, maintenance, assembly, and the like.
- an embodiment of the present invention further provides an elastic fiber dry spinning component.
- the elastic fiber dry spinning component comprises: a spinning assembly and at least one of the second metering devices provided by any one of the above technical solutions, the spinning assembly being connected to each of the second metering devices, the spinning
- the wire assembly can adopt the structure of any of the spinning assemblies provided by the embodiments of the present invention.
- the spinning assembly comprises a plurality of inlets, and the plurality of inlets are linearly arranged.
- the plurality of inlets of the spinning assembly may be dispersedly arranged in a straight line, or The plurality of inlets of the spinning assembly can be dispersedly arranged on a plurality of parallel straight lines having a certain interval.
- the second metering device can accurately meter and distribute the polymer solution, and convert the non-linear arrangement of the plurality of outlets of the metering unit into a linear arrangement corresponding to the linear arrangement of the plurality of inlets of the spinning assembly, and It can be directly connected to the inlet of the spinning assembly.
- At least a portion of the outlets of the first conversion plate are linearly aligned and correspondingly connected with at least a portion of the inlets of the spinning assembly, and the polymer solution passes through at least one of the metering units.
- An inlet and an outlet of the first converter plate enter the spinning assembly.
- the polymer solution enters into the spinning assembly through at least one inlet of the metering unit and an outlet of the first conversion plate, is filtered, insulated, and ejected through the spinneret to enter a space containing high temperature.
- the cavity spinning box, the solution flow is processed in the spinning box to form a tow, and the tow is wound to form a spandex.
- the number and assembly manner of the first conversion plate and the spinning assembly can be determined according to actual production requirements of the process, and the implementation manner is very flexible.
- one first conversion plate can correspond to one spinning assembly.
- the plurality of outlets linearly arranged at the lower end surface of the first conversion plate are directly connected with the plurality of inlets of the spinning assembly in a linear arrangement, thereby saving the metal hose required for the connection of the second metering device and the spinning assembly. Increased space utilization and capacity.
- a plurality of first conversion plates may share a spinning assembly.
- a second metering device includes six first conversion plates 122, and the lower end faces of the first conversion plates are linearly arranged at the outlets respectively.
- a portion of the inlets of a spin pack 126 are arranged in a corresponding linear arrangement and are correspondingly in communication.
- the solution can convert the outlets of the plurality of metering units through a plurality of first conversion plates into a plurality of imported matching direct connections that meet different linear arrangements of equipment such as spinning components in a dry spinning process such as spandex.
- the export arrangement is to achieve a flexible layout and better meet the actual needs of fiber process production differentiation.
- the spinning assembly 126 can be, but is not limited to, any of the spinning assemblies provided by embodiments of the present invention.
- a plurality of spinning assemblies may share a first conversion plate, such that a portion of the outlet of the first conversion plate is directly connected to an inlet of a spinning assembly linearly arranged, and the other portion of the outlet is formed with another spinning assembly.
- the linearly arranged inlets are matched directly, and the solution can directly match the plurality of outlets of one first conversion plate to the linearly arranged inlets of the plurality of spinning assemblies, so as to realize flexible layout and better meet the difference in fiber processing production. Actual needs.
- At least a portion of the outlet of the second conversion plate is linearly aligned and correspondingly connected to at least a portion of the inlet of the spinning assembly, and the polymer solution passes through at least one of the metering units.
- the inlet and the outlet of the second conversion plate enter the spinning assembly.
- the polymer solution enters the spinning assembly through at least one inlet of the metering unit and an outlet of the second converter plate, is filtered, insulated, and ejected through the spinneret to enter a space containing high temperature.
- the cavity spinning box, the solution flow is processed in the spinning box to form a tow, and the tow is wound to form a spandex.
- the number and assembly manner of the second conversion plate and the spinning assembly can be determined according to actual production requirements of the process, and the implementation manner is very flexible.
- one second conversion plate can correspond to one spinning assembly.
- the outlets of the plurality of through holes which are linearly arranged at the lower end surface of the second conversion plate 125 are directly connected to the plurality of inlets of the spinning assembly 126 which are linearly arranged, thereby saving the second metering device.
- the metal hose required to connect to the spinning assembly increases space utilization and productivity.
- a plurality of second conversion plates may share a spinning assembly at the lower end of each of the second conversion plates.
- the outlets of the plurality of through holes arranged in a line are respectively linearly aligned and correspondingly connected to a portion of the inlet of the spinning assembly.
- the solution can convert the outlet of the metering unit through a plurality of second conversion plates into a plurality of inlet-matching direct-connecting outlets that meet different linear arrangements of equipment such as spinning components in a dry spinning process such as spandex. Arrangement to achieve a flexible layout to better meet the actual needs of fiber process production differentiation.
- a plurality of spinning assemblies may share a second conversion plate, such as an outlet of a portion of the through hole at a lower end surface of the second conversion plate, which is directly aligned with an inlet of a spinning assembly, and other portions.
- the outlet of the through hole is directly connected with the inlet of the linear arrangement of the other spinning assembly, and the solution can directly match the outlets of the plurality of through holes of one second conversion plate to the linearly arranged inlets of the plurality of spinning assemblies.
- it is better to meet the actual needs of the differentiation of fiber production.
- the elastic fiber dry spinning component provided by the embodiment of the invention realizes that the metal hose can be directly connected between the outlet of the second metering device and the inlet of the spinning component, thereby saving the need for arranging the metal hose connector.
- the occupied space and the space saved can be arranged with more solution flow inlets and outlets, so that the spinning assembly can spray more tows in a limited space, thereby improving efficiency and reducing production cost of the product.
- the spinning assembly is detachably coupled to at least one of the second metering devices to further improve convenience and efficiency of equipment cleaning, maintenance, and the like.
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Abstract
Description
Claims (61)
- 一种弹性纤维干法纺丝组件,其特征在于,包括:一控温箱,所述控温箱包括:一箱体,所述箱体纵向设有多个相互隔离的聚合物溶液通道;所述箱体内除各所述聚合物溶液通道之外的区域为空腔,所述空腔用于流通与所述聚合物溶液通道内的弹性纤维干纺用聚合物溶液进行热交换的流体介质;一喷丝部,与所述控温箱可拆卸式连接,所述喷丝部包括多个相互隔离的喷丝孔组,多个所述喷丝孔组与多个所述聚合物溶液通道的出口对应连通。
- 根据权利要求1所述的纺丝组件,其特征在于,所述喷丝部远离所述控温箱的一面设有一热防护板。
- 根据权利要求1所述的纺丝组件,其特征在于,至少一所述喷丝孔组的入口处设有一过滤组件。
- 根据权利要求3所述的纺丝组件,其特征在于,所述过滤组件包括:集合在一起的多层过滤网,至少二层所述过滤网的目数不同。
- 根据权利要求3所述的纺丝组件,其特征在于,集合在一起的多层所述过滤网还设有一密封包边。
- 根据权利要求1所述的纺丝组件,其特征在于,一所述喷丝孔组包括:一喷丝孔以及设于所述喷丝孔内的一喷丝头子部,一所述喷丝头子部包括至少一喷丝头;多个所述喷丝孔组中至少一所述喷丝孔组包括的喷丝头子部与相应喷丝孔可拆卸式连接。
- 根据权利要求6所述的纺丝组件,其特征在于,多个所述喷丝孔组中至少一所述喷丝孔组包括的喷丝头子部与相应喷丝孔过盈压入连接或螺纹连接。
- 根据权利要求1所述的纺丝组件,其特征在于,所述弹性纤维包括氨纶纤维。
- 根据权利要求1-8任一所述的纺丝组件,其特征在于,一所述聚合物溶液通道内设有一中间部件,所述中间部件用于减小经所述聚合物溶液通道流出的聚合物溶液不同部分的温差。
- 根据权利要求9所述的纺丝组件,其特征在于,所述中间部件包括:一分流部,用于将进入所述聚合物溶液通道内的聚合物溶液的截面形状由实心形状转换为空心的环形形状。
- 根据权利要求10所述的纺丝组件,其特征在于,所述实心形状为圆形,所述空心的环形形状为圆环形。
- 根据权利要求10所述的纺丝组件,其特征在于,所述分流部包括:进液子部、出液子部和导流子部;所述进液子部和所述导流子部纵向依次设置;所述出液子部与所述进液子部连通,用于将进入所述进液子部的聚合物溶液引 出至所述导流子部的外壁并沿所述外壁流下。
- 根据权利要求12所述的纺丝组件,其特征在于,所述进液子部的内径小于所述导流子部的外径,所述出液子部具有外扩式结构,具有外扩式结构的所述出液子部的出口沿所述导流子部的外边缘分布。
- 根据权利要求13所述的纺丝组件,其特征在于,所述进液子部包括纵向依次设置的空心圆筒进液部和倒锥台分配部;所述倒锥台分配部上表面与所述空心圆筒进液部连通,下表面与所述导流子部非连通式连接;具有外扩式结构的所述出液子部的进口与所述倒锥台分配部的侧面连通。
- 根据权利要求13所述的纺丝组件,其特征在于,所述导流子部具有圆柱结构。
- 根据权利要求12所述的纺丝组件,其特征在于,所述进液子部的内径大于所述导流子部的外径,所述出液子部设于所述进液子部的底面并沿所述导流子部的外边缘分布。
- 根据权利要求16所述的纺丝组件,其特征在于,所述进液子部具有空心圆筒结构,所述导流子部具有圆柱结构。
- 根据权利要求10所述的纺丝组件,其特征在于,所述中间部件还包括:一汇流部,连接于所述分流部的下方,用于将所述分流部流出的聚合物溶液汇聚为一实心流束。
- 根据权利要求18所述的纺丝组件,其特征在于,所述汇流部具有锥形结构。
- 根据权利要求9所述的纺丝组件,其特征在于,所述中间部件包括:一静态混合器,用于对进入所述聚合物溶液通道内的聚合物溶液进行分散和混合,以减小所述聚合物溶液径向不同部分的温差。
- 根据权利要求9所述的纺丝组件,其特征在于,多个所述聚合物溶液通道中至少一所述聚合物溶液通道的进口设有一密封圈,以免聚合物溶液流入所述空腔。
- 根据权利要求9所述的纺丝组件,其特征在于,所述箱体上还设有流体介质入口和流体介质出口,所述流体介质经所述流体介质入口流入所述空腔并经所述流体介质出口流出所述箱体。
- 根据权利要求22所述的纺丝组件,其特征在于,所述流体介质入口设于所述箱体上表面靠近所述箱体的一侧面的部位,所述流体介质出口设于所述箱体上表面靠近所述箱体的另一侧面的部位。
- 根据权利要求9所述的纺丝组件,其特征在于,还包括:过滤部件,设于所述中间部件的下方,用于对所述中间部件流出的聚合物溶液进行过滤处理。
- 根据权利要求9所述的纺丝组件,其特征在于,所述纺丝组件还配置有第一旋转装置,用于使所述纺丝组件旋转而改变所述喷丝部远离所述控温箱 一面的朝向。
- 一种弹性纤维干法纺丝部件,其特征在于,包括:一计量装置和一如权利要求1-25任一所述的纺丝组件;所述一计量装置与所述控温箱可拆卸式连接,用于计量并向多个所述聚合物溶液通道分配所述弹性纤维干纺用聚合物溶液。
- 根据权利要求26所述的纺丝部件,其特征在于,所述计量装置和所述控温箱之间设有一隔热板,用于减少所述控温箱向所述计量装置的热交换。
- 根据权利要求26所述的纺丝部件,其特征在于,所述纺丝部件还配置有第二旋转装置,用于使所述纺丝部件旋转而改变所述喷丝部远离所述控温箱一面的朝向。
- 根据权利要求26-28任一所述的纺丝部件,其特征在于,所述计量装置包括至少一进口和多个出口;所述计量装置的至少多个出口呈线性排列,与所述控温箱的至少多个所述聚合物溶液通道的进口呈对应的线性排列且对应连通;所述控温箱的至少多个所述聚合物溶液通道的出口,与所述喷丝部的至少多个喷丝孔组呈对应的线性排列且对应连通。
- 根据权利要求29所述的纺丝部件,其特征在于,所述计量装置包括一个或多个第一计量装置,所述控温箱与至少一所述第一计量装置可拆卸式连接;一所述第一计量装置包括:至少一计量单元,一所述计量单元包括至少一进口和多个出口,一所述计量单元的多个出口呈非线性排列;至少一接口转换部,一所述接口转换部包括经多个导流转换通道对应连通的多个进口和多个出口,一所述接口转换部的至少部分进口与一所述计量单元的至少部分出口呈对应的非线性排列且对应连通,一所述接口转换部的多个出口呈线性排列,其中,一所述接口转换部的至少部分出口与所述控温箱的至少部分所述聚合物溶液通道呈对应的线性排列且对应连通,弹性纤维干法纺丝用聚合物溶液至少经一所述计量单元的进口和一所述接口转换部的出口进入相应的所述聚合物溶液通道。
- 根据权利要求30所述的纺丝部件,其特征在于,一所述计量单元的多个出口呈非线性排列,包括:一所述计量单元的多个出口分散排列在一圆周或圆弧上,或者,分散排列在多个同心圆的圆周或圆弧上。
- 根据权利要求30所述的纺丝部件,其特征在于,一所述接口转换部的至少部分进口呈非线性排列,包括:一所述接口转换部的至少部分进口分散排列在一圆周或圆弧上,或者,分散排列在多个同心圆的圆周或圆弧上。
- 根据权利要求30所述的纺丝部件,其特征在于,一所述接口转换部 的多个出口呈线性排列,包括:一所述接口转换部的多个出口呈线性分散排列在一直线上,或者,分散排列在多条具有一定间隔的平行直线上。
- 根据权利要求30所述的纺丝部件,其特征在于,所述接口转换部和所述计量单元可拆卸式连接。
- 根据权利要求30所述的纺丝部件,其特征在于,一所述计量单元的一出口与一所述接口转换部的一进口的对应连接处设有一密封圈。
- 根据权利要求30所述的纺丝部件,其特征在于,一所述接口转换部包括:相互连接的至少一第一分配板和至少一第二分配板;一所述第一分配板包括多个通孔,一所述第一分配板的至少部分通孔的进口与一所述计量单元的至少部分出口呈对应的非线性排列且对应连通;一所述第二分配板包括多个导流转换通道和多个通孔,所述第二分配板的一导流转换通道的一端连通一所述第一分配板的一通孔的出口、另一端连通一所述第二分配板的一通孔的进口,一所述第二分配板的多个通孔的出口呈线性排列。
- 根据权利要求36所述的纺丝部件,其特征在于,一所述第二分配板的多个导流转换通道设于其与所述第一分配板对应连接的一面。
- 根据权利要求36所述的纺丝部件,其特征在于,所述计量单元和所述第一分配板可拆卸式连接。
- 根据权利要求36所述的纺丝部件,其特征在于,所述第一分配板和所述第二分配板可拆卸式连接。
- 根据权利要求36所述的纺丝部件,其特征在于,一所述第一分配板的一通孔的出口与一所述第二分配板的一导流转换通道的一端的对应连接处设有一密封件。
- 根据权利要求36所述的纺丝部件,其特征在于,一所述第一分配板包括:多级第一分配子板,一所述第一分配子板包括多个通孔,各级所述第一分配子板的各通孔的出口呈非线性排列,多级所述第一分配子板依次叠设且对应连通,其中,初级所述第一分配子板的一通孔的进口与一所述计量单元的一出口对应连通,末级所述第一分配子板的一通孔的出口与一所述第二分配板的一导流转换通道的一端对应连通。
- 根据权利要求36所述的纺丝部件,其特征在于,一所述第二分配板包括:多级第二分配子板,一所述第二分配子板包括多个导流转换通道和多个通孔,各级所述第二分配子板的各通孔的出口呈线性排列,多级所述第二分配子板依次叠设且对应连通,其中,初级所述第二分配子板的一导流转换通道的一端与一所述第一分配板的一出口对应连通,下一级所述第二分配子板的导流转换通道的进口与上一级所述第二分配子板的通孔的出口对应连通。
- 根据权利要求30所述的纺丝部件,其特征在于,一所述接口转换部还包括有至少一个溶液进口,一所述溶液进口经一溶液导流通道与一所述计量 单元的至少一进口连通。
- 根据权利要求30所述的纺丝部件,其特征在于,还包括:至少一驱动装置,与至少一所述计量单元驱动连接。
- 根据权利要求44所述的纺丝部件,其特征在于,在包括多个所述计量单元的情形下,至少部分所述计量单元公用一所述驱动装置。
- 根据权利要求29所述的纺丝部件,其特征在于,所述计量装置包括:一个或多个第二计量装置,所述控温箱与至少一所述第二计量装置可拆卸式连接;一所述第二计量装置包括:至少一计量单元和至少一第一转换板;一所述计量单元包括至少一进口;一所述计量单元的至少一侧面设有呈非线性排列的多个出口,与一所述第一转换板的至少一侧面设有的呈对应非线性排列的多个进口对应连通;一所述第一转换板的下端面设有呈线性排列的多个出口,一所述第一转换板的一进口与一出口之间通过一导流转换通道连通;其中,一所述第一转换板的至少部分出口与所述控温箱的至少部分所述聚合物溶液通道呈对应的线性排列且对应连通,弹性纤维干法纺丝用聚合物溶液至少经一所述计量单元的进口和一所述第一转换板的出口进入相应的所述聚合物溶液通道。
- 根据权利要求46所述的纺丝部件,其特征在于,一所述计量单元的至少一侧面设有呈非线性排列的多个出口,包括:一所述计量单元的至少一侧面设有的多个出口分散排列在该侧面的一圆周或圆弧上,或者,分散排列在该侧面的多个同心圆的圆周或圆弧上。
- 根据权利要求46所述的纺丝部件,其特征在于,一所述第一转换板的至少一侧面设有的呈对应非线性排列的多个进口,包括:一所述第一转换板的至少一侧面设有的多个进口分散排列在该侧面的一圆周或圆弧上,或者,分散排列在该侧面的多个同心圆的圆周或圆弧上。
- 根据权利要求46所述的纺丝部件,其特征在于,一所述第一转换板的下端面设有呈线性排列的多个出口,包括:一所述第一转换板的下端面设有的多个出口分散排列在该下端面的一直线上,或者,分散排列在该下端面的多条具有一定间隔的平行直线上。
- 根据权利要求46所述的纺丝部件,其特征在于,一所述计量单元的两个相对侧面中每个侧面设有的呈非线性排列的多个出口,各对应连通一所述第一转换板的一侧面设有的呈对应非线性连接的多个进口。
- 根据权利要求46所述的纺丝部件,其特征在于,一所述第一转换板的两个相对侧面中每个侧面设有的呈非线性排列的多个进口,分别对应连通一所述计量单元的一侧面设有的呈对应非线性连接的多个出口。
- 根据权利要求46所述的纺丝部件,其特征在于,至少一所述第一转换板还设有至少一溶液进口,一所述溶液进口经一溶液导流通道与一所述计量单元的至少一进口连通。
- 根据权利要求52所述的纺丝部件,其特征在于,所述溶液进口设于所述第一转换板的上端面。
- 根据权利要求46所述的纺丝部件,其特征在于,所述计量单元与所述第一转换板可拆卸式连接。
- 根据权利要求46所述的纺丝部件,其特征在于,在包括多个所述计量单元的情形下,至少部分所述计量单元公用一所述驱动装置。
- 根据权利要求55所述的纺丝部件,其特征在于,所述驱动装置包括一传动轴,至少部分所述计量单元串接在所述传动轴上。
- 根据权利要求46所述的纺丝部件,其特征在于,所述第二计量装置还包括:至少一第二转换板,一所述第二转换板设有多个通孔,多个所述通孔的进口和出口分别呈线性排列在所述第二转换板的上端面和下端面;至少部分所述通孔的进口与一所述第一转换板的下端面设有的呈线性排列的多个出口中的至少部分出口对应连通;其中,一所述第二转换板的至少部分出口与所述控温箱的至少部分所述聚合物溶液通道呈对应的线性排列且对应连通,弹性纤维干法纺丝用聚合物溶液至少经一所述计量单元的进口和一所述第二转换板的出口进入相应的所述聚合物溶液通道。
- 根据权利要求57所述的纺丝部件,其特征在于,多个所述通孔的进口和出口分别呈线性排列在所述第二转换板的上端面和下端面,包括:多个所述通孔的进口分散排列在所述第二转换板的上端面的一直线上,且多个所述通孔的出口分散排列在所述第二转换板的下端面的一直线上;或者,多个所述通孔的进口分散排列在所述第二转换板的上端面的多条具有一定间隔的平行直线上,且多个所述通孔的出口分散排列在所述第二转换板的下端面的多条具有一定间隔的平行直线上。
- 根据权利要求57所述的纺丝部件,其特征在于,一所述第一转换板的下端面设有的呈线性排列的多个出口分为多组,每组出口对应连通一所述第二转换板设有的呈线性排列的多个通孔的进口。
- 根据权利要求57所述的纺丝部件,其特征在于,一所述第二转换板设有的呈线性排列的多个通孔分为多组,每组通孔的进口对应连通一所述第一转换板的下端面设有的呈对应线性连接的多个出口。
- 根据权利要求57所述的纺丝部件,其特征在于,所述第一转换板与所述第二转换板可拆卸式连接。
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CN108823657B (zh) * | 2018-08-23 | 2023-09-29 | 宁波建嵘科技有限公司 | 一种多工位喷丝板 |
CN110735189A (zh) * | 2019-11-28 | 2020-01-31 | 宁波斯宾拿精密机械制造有限公司 | 一种基于溶液纺丝技术的纺丝组件及纺丝设备 |
CN112501698A (zh) * | 2020-11-12 | 2021-03-16 | 厦门夏曦儿纺织机械有限公司 | 一种便于拆卸的喷丝机构 |
CN114293274B (zh) * | 2021-12-28 | 2023-03-14 | 杭州汇云天丽实业有限公司 | 一种抗压皱高强度锦纶poy丝的生产装置及使用方法 |
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KR20170077224A (ko) | 2017-07-05 |
EP3228734A1 (en) | 2017-10-11 |
EP3228734A4 (en) | 2018-06-27 |
JP6450468B2 (ja) | 2019-01-09 |
BR112017011558A2 (pt) | 2018-02-27 |
JP2017535694A (ja) | 2017-11-30 |
EP3228734B1 (en) | 2020-09-09 |
BR112017011558B1 (pt) | 2021-11-09 |
KR101934380B1 (ko) | 2019-03-25 |
US20180291526A1 (en) | 2018-10-11 |
US20230279584A1 (en) | 2023-09-07 |
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