CN108707987B - Spinning assembly for bicomponent fibers - Google Patents
Spinning assembly for bicomponent fibers Download PDFInfo
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- CN108707987B CN108707987B CN201810980247.2A CN201810980247A CN108707987B CN 108707987 B CN108707987 B CN 108707987B CN 201810980247 A CN201810980247 A CN 201810980247A CN 108707987 B CN108707987 B CN 108707987B
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- Prior art keywords
- melt
- diversion
- plate
- disc
- spinneret
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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
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
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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
- D01D1/10—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
- D01D4/06—Distributing spinning solution or melt to spinning nozzles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
A spinning component for a double-component fiber comprises a cylinder body, wherein the upper inner wall of a cylinder body cavity is provided with a locking nut matched thread, and the lower inner wall is provided with a limiting ring; the spinneret plate is supported on the limiting ring, an annular distribution area of spinneret holes is arranged on the spinneret plate, the spinneret holes I and II are arranged on the annular distribution area, the melt distribution plate is supported on the spinneret plate, a pair of distribution plate melt diversion grooves I and II are arranged on the melt distribution plate, a distribution plate melt diversion groove I and II is arranged at the bottom of the melt distribution plate, a diversion plate center diversion hole is arranged at the center position of the diversion plate, a filter cartridge bottom is supported on the diversion plate, a filter cartridge center diversion hole is arranged on the bottom wall of the cylinder cavity, the middle part of the melt diversion plate is supported at the upper part of the filter cartridge, a melt diversion plate center diversion hole is arranged at the center position of the melt diversion plate, a melt diversion plate side diversion hole is arranged on the side wall of the melt diversion plate, and the locking nut is sleeved on the melt diversion plate. Can uniformly distribute the melt thin streams of two different components.
Description
Technical Field
The invention belongs to the technical field of melt spinning fiber spinning equipment, and particularly relates to a spinning component for bicomponent fibers.
Background
The bicomponent fibers mentioned above are primarily, but not exclusively, intended to be used in the manufacture of cigarette filters (also referred to as "cigarette sticks").
As known in the art, bundles of tobacco are the main raw materials for producing cigarette filter rods, and the requirements for cigarette filter rods are severe, such as good air permeability, no toxicity or smell, high thermal stability, small smoke resistance, excellent filtration effect, selective adsorption of harmful components in cigarettes, while retaining a certain amount of nicotine without losing the taste of cigarettes, and the like.
Because the filter effect of the cigarette filter rod made of cellulose acetate fiber is obviously better than that of the cigarette filter rod made of polypropylene fiber, cellulose acetate fiber is commonly used as the filter rod raw material of medium-high grade cigarettes. However, since a large amount of organic wastewater is generated during pulping, acetification and solution spinning of cellulose acetate tow and the energy consumption is high and pollution is large, the industry is expected to replace the cellulose tow with a fiber tow having a better filtering effect without damaging the environment during the production process.
Although the adsorption capacity of the polypropylene tows is obviously inferior to that of acetate fibers due to smooth surfaces, the cost is low, and the polypropylene tows are advantageous, so that the polypropylene tows always occupy a place in the cigarette industry in China.
Polylactic acid fiber is a novel fiber which has been developed faster in recent years, and is a biological fiber prepared by processing crop starch such as corn, beet, cereal or potato into glucose, fermenting to generate lactic acid, purifying and cyclizing to prepare lactide, ring-opening polymerizing and spinning. The polylactic acid fiber not only has good biocompatibility, but also has degradation products of carbon dioxide and water, no solid residue, no environmental pollution in the processing process, no toxic or side effect on organisms, and is an environment-friendly fiber material safe to human bodies. Because polylactic acid fiber (PLA fiber) has a lower melting point (about 170 ℃), the energy consumption in the production process is lower than that of petroleum-based chemical fiber. The polylactic acid fiber has a similar structure to the acetate fiber, and the molecular surface contains rich polar groups, so the polylactic acid fiber has stronger affinity to polar substances, can react with tar components and low-molecular substances, and can firmly stay on the fiber surface, meanwhile, the surface of the fiber bundle has micropores (if polylactic acid bamboo charcoal master batch is added in spinning, the micropores on the fiber surface layer are more obvious, the adsorption effect is better) and a rough feel, and has double adsorption effects of physical adsorption and chemical adsorption in the flue gas adsorption process. The filter stick made of the polylactic acid fiber has good adsorption effect, and the adsorption performance and the suction taste of the filter stick after being installed can be comparable with those of acetate fiber and are obviously superior to those of polypropylene fiber, so the filter stick is a material expected in the industry.
Although the polylactic acid tows can replace cellulose acetate tows and are blended with the polypropylene tows to manufacture the cigarette filter stick, the polylactic acid tows and the polypropylene tows cannot meet the technical requirements (filtering requirements) of the cigarette filter stick in the blending process, so that the application of the polylactic acid tows in the cigarette filter stick is restricted to a certain extent. Experiments conducted by the applicant show that: the two-component tows of the polylactic acid tows and the polypropylene tows can meet the filtering effect required by the cigarette filter rod as long as the uniform interval distribution of the two-component tows is ensured, and whether the polylactic acid tows and the polypropylene tows are uniformly distributed at intervals or not often depends on a spinning assembly (also called a 'spinning assembly' in the industry).
In the published chinese patent literature, technical information about spin packs for bicomponent fibers can be seen, such as CN103668499a (bicomponent winding spinneret), CN206467344U (a bicomponent composite spinneret assembly), CN204509525U (the spinneret structure of a polylactic acid bicomponent composite fiber single spinneret hole spin assembly), and CN103668498A (bicomponent interlaced spinneret), among others.
None of the above-cited patents is limited to satisfying the requirement of uniformly spacing fibers of two different materials and does not directly or indirectly give corresponding technical teaching. For example, CN103668499a is a fiber obtained by binding two different materials together by a certain viscosity before curing; as another example CN206467344U is to bond two-component materials to each other; also applicable as CN20450925U are the spinning of two identical materials (polylactic acid); further, as in CN103668498A, the primary filaments of the two materials are interlaced with each other but not intersected after being ejected to form a bundle of filaments.
Disclosure of Invention
The invention aims to provide a spinning component for a bicomponent fiber, which is favorable for enabling melts of two different materials to be ejected from spinning holes of a spinneret plate in a state of uniform interval distribution so as to meet the requirement of subsequent uniform blending production.
The invention accomplishes the task by this, a spinning assembly for bicomponent fiber, including a cylinder, form the lock nut on the upper portion inner wall of the cylinder cavity of this cylinder and cooperate with the screw thread, form a stop collar on the lower portion inner wall of the cylinder cavity; the spinneret plate is supported on the limiting ring, a plurality of annular distribution areas of spinneret holes are formed on the spinneret plate, the annular distribution areas of the spinneret holes surround the circumferential direction of the spinneret plate and are gradually close to the central direction of the spinneret plate from the edge part of the spinneret plate in a concentric circle state based on the center of the spinneret plate, the annular distribution areas of the spinneret holes are provided with spinneret holes I and spinneret holes II, the spinneret holes I and the spinneret holes II penetrate from the upper surface to the lower surface of the spinneret plate and form a spaced position relation with each other, the melt distribution plate is supported on the spinneret plate, one side of the melt distribution plate facing upwards is provided with a pair of distribution plate melt flow guide grooves I and a pair of distribution plate melt flow guide grooves II, the pair of distribution plate melt flow guide grooves I and the pair of distribution plate melt guide grooves II form a spaced position relation with each other, the melt flow guide grooves I and the melt flow guide grooves II of the distribution plate are provided with a position corresponding to the positions of the distribution plate melt guide grooves I and the two ends of the distribution plate are provided with a position corresponding to the melt guide grooves II of the distribution plate, the melt guide grooves I and the melt guide grooves II of the distribution plate are provided with a position corresponding to the two ends of the distribution plate melt guide grooves I, a plurality of distribution plate melt diversion grooves I and distribution plate melt diversion grooves II which are arranged at the bottom of the melt distribution plate and at positions corresponding to the annular distribution areas of the spinneret holes, surround the circumferential direction of the melt distribution plate and are sequentially close to the central direction of the melt distribution plate from the edge part of the melt distribution plate in a state of concentric circles based on the center of the melt distribution plate, wherein the distribution plate melt diversion grooves I and the distribution plate melt diversion grooves II are mutually formed in a spaced-apart position relationship and are separated by melt diversion groove wall, a melt diversion groove diversion cavity I is formed at one side of the melt diversion groove wall at intervals, a melt diversion groove diversion cavity II is formed at the other side of the melt diversion groove wall at intervals, the melt diversion groove diversion cavity I and the melt diversion groove diversion cavity II are mutually formed in a spaced-apart dislocation relationship, the distributor melt diversion groove I is communicated with the distributor melt diversion groove I, the distributor melt diversion groove II is communicated with the distributor melt diversion groove II, the melt diversion groove diversion cavity I corresponds to and is communicated with the spinneret orifice I, the melt diversion groove diversion cavity II corresponds to and is communicated with the spinneret orifice II, the deflector is supported on the melt distribution plate, a deflector central diversion hole is arranged at the central position of the deflector, a deflector central diversion hole diversion cavity communicated with the deflector central diversion hole is respectively arranged at the positions of two corresponding sides of the bottom of the deflector central diversion hole, the deflector central diversion hole diversion cavity is communicated with the pair of distributor melt diversion grooves I, a pair of diversion disk diversion holes penetrating through the thickness direction of the diversion disk are formed at the edge part of the diversion disk and at the position corresponding to the pair of diversion disk melt diversion grooves II, the pair of diversion disk diversion holes are communicated with the pair of diversion disk melt diversion grooves II, the bottom of the filtering cylinder is supported on the diversion disk, the bottom wall of the filtering cylinder cavity of the filtering cylinder is provided with a central diversion hole of the filtering cylinder at intervals, the central diversion hole of the filtering cylinder is communicated with the central diversion hole of the diversion disk, the outer wall of the lower part of the filtering cylinder is provided with an outer diversion disk of the filtering cylinder around the circumference direction of the filtering cylinder, the outer diversion disk of the filtering cylinder is provided with an outer diversion disk diversion hole of the filtering cylinder at intervals, the outer diversion disk of the filtering cylinder is communicated with the pair of diversion disk diversion holes, the upper cavity wall of the filtering cylinder cavity of the filtering cylinder is provided with a central gland supporting ring, a filter cartridge upper filter screen is arranged on the central gland supporting ring, a central gland is arranged on the filter cartridge upper filter screen, a central gland guide hole is arranged in the center of the central gland and is communicated with a filter cartridge cavity, wherein a filter cartridge lower filter screen is paved on the bottom wall of the filter cartridge cavity, a filter cartridge outer guide disk filter screen is paved on the filter cartridge outer guide disk, the middle part of a melt guiding disk is supported on the upper part of the filter cartridge, a melt guiding disk bottom filter screen is arranged at the periphery corresponding to the bottom of the melt guiding disk, a melt guiding disk central guide hole is arranged at the central position of the melt guiding disk, a melt guiding disk side guide hole is arranged on the side wall of the melt guiding disk, the melt guiding disk central guide hole corresponds to and is communicated with the central gland guide hole, the lateral diversion holes of the melt guiding disc are communicated with the diversion holes of the outer diversion disc of the filter cartridge, and the locking nut is sleeved on the melt guiding disc at a position corresponding to the outer side of the upper part of the melt guiding disc and is in threaded fit with the locking nut.
In a specific embodiment of the invention, a spinneret plate supporting step groove is formed at the edge part of the bottom of the spinneret plate and surrounds the circumference direction of the spinneret plate, the spinneret plate is supported on the limiting ring through the spinneret plate supporting step groove, and a spinneret plate bottom edge sealing ring is arranged between the spinneret plate supporting step groove and the limiting ring; a pair of spinneret positioning pins are formed at the edge part of one side of the spinneret plate facing upwards, the spinneret positioning pins are spaced 180 degrees apart from each other around the circumferential direction of the spinneret plate, a pair of spinneret positioning pin matching holes are formed at the edge part of one side of the melt distribution plate facing downwards and at positions corresponding to the spinneret positioning pins, and the spinneret positioning pins penetrate into the spinneret positioning pin matching holes.
In another specific embodiment of the invention, a filter cartridge stack ring extends on the filter cartridge and at the peripheral edge part corresponding to the downward-facing side of the bottom wall of the cartridge chamber of the filter cartridge, the bottom of the filter cartridge stack ring is supported on the upward-facing side of the guide disc, and the stack ring chamber of the filter cartridge stack ring is formed into a filter cartridge converging chamber which is communicated with the filter cartridge central guide hole and the guide disc central guide hole; the edge part of the outer guide disc of the filter cartridge and the guide disc stack edge downwards extends around the circumferential direction of the outer guide disc of the filter cartridge, and a space between the inner wall of the guide disc stack edge and the outer wall of the filter cartridge stack ring forms a guide disc converging cavity which is communicated with the guide disc guide hole of the outer guide disc of the filter cartridge and the guide disc diverging holes of the pair of guide discs.
In yet another specific embodiment of the present invention, a cartridge center filter media is disposed within a cartridge chamber of the cartridge and in a region between the upper filter screen and the lower filter screen of the cartridge; and a filter cartridge peripheral filter medium is arranged between the bottom filter screen of the melt guiding plate and the filter screen of the outer guide plate of the filter cartridge and between the outer wall of the filter cartridge and the inner wall of the cylinder cavity.
In yet another specific embodiment of the present invention, the central filter medium of the cartridge and the peripheral filter medium of the cartridge are filter sand.
In a further specific embodiment of the invention, a central gland cavity is formed at the upper part of the filter cartridge and above the central gland support ring, the central gland is positioned in the central gland cavity, the central gland is in a truncated cone shape, one end of the small diameter of the central gland faces upwards, and a central gland sealing ring is sleeved on the central gland and is in sealing fit with the inner wall of the central gland cavity and is also in sealing fit with the melt introducing disc at the same time.
In a further specific embodiment of the invention, a central column of the melt-guiding plate is formed at the central position of the upper part of the melt-guiding plate, a filter cartridge matching cavity is formed at the lower part of the melt-guiding plate, the central flow guiding hole of the melt-guiding plate is arranged at the central position of the central column of the melt-guiding plate, the filter cartridge matching cavity is matched with the upper part of the filter cartridge, a flow guiding groove of the melt-guiding plate is formed on the melt-guiding plate and around the periphery of the central column of the melt-guiding plate, the side flow guiding holes of the melt-guiding plate are communicated with the flow guiding groove of the melt-guiding plate, and the central gland sealing ring is in sealing fit with the cavity wall of the filter cartridge matching cavity.
In a further specific embodiment of the invention, a melt introduction plate center pillar seal ring is arranged at the top of the melt introduction plate center pillar, a melt introduction plate guide groove step is formed at the upper part of the melt introduction plate guide groove, a melt introduction plate guide groove step seal ring is arranged on the melt introduction plate guide groove step, a melt introduction plate seal inclined surface is formed on the outer wall of the melt introduction plate and positioned at the lower part around the circumferential direction of the melt introduction plate, and an inclined surface seal ring is arranged on the seal inclined surface corresponding to the melt introduction plate seal inclined surface, and the inclined surface seal ring is in sealing fit with the cavity wall of the cylinder cavity of the cylinder body.
In yet another specific embodiment of the present invention, a central gland head mating cavity is formed at the top of the cartridge filter mating cavity, a central gland head is formed at the top of the central gland, the central gland head extends into the central gland head mating cavity and a tube head end face seal is provided on the top surface of the central gland head.
In yet another specific embodiment of the present invention, nut manipulation tool grooves are formed at intervals on a side surface of the lock nut facing upward.
According to the technical scheme provided by the invention, one melt guided by the central guide hole of the melt guiding disc sequentially passes through the central gland guide hole, the central filter medium of the filter cartridge in the cartridge cavity of the filter cartridge, the central guide hole of the guide disc, the pair of melt guide grooves I of the distribution disc, the melt guide grooves I of the distribution disc and the melt guide grooves I of the melt guide grooves enter the spinneret plate, the melt thin stream is formed by spraying out of the spinneret holes I, and the other melt guided by the side guide holes of the melt guiding disc sequentially passes through the peripheral filter medium of the filter cartridge, the guide disc guide holes of the filter cartridge, the pair of guide disc diversion holes, the pair of melt guide grooves II of the distribution disc, the melt guide grooves II of the distribution disc and the melt guide grooves II of the spinneret holes II and form a position relation of one another, so that the melt thin stream of two different components is uniformly distributed, and the obtained double-component fibers meet the requirement of uniform blending production of a later passage and are suitable for manufacturing cigarette filter sticks.
Drawings
Fig. 1 is a structural diagram of an embodiment of the present invention.
FIG. 2 is a bottom elevation view of the melt distribution plate shown in FIG. 1.
FIG. 3 is a top elevational view of the melt distribution plate of FIG. 1.
Fig. 4 is a partial cross-sectional view of the melt distribution plate shown in fig. 1 and 2.
Fig. 5 is a schematic view of the structure of the present invention in use after assembly.
Detailed Description
In order to make the technical spirit and advantages of the present invention more clearly understood, the applicant will now make a detailed description by way of example, but the description of the examples is not intended to limit the scope of the invention, and any equivalent transformation made merely in form, not essentially, according to the inventive concept should be regarded as the scope of the technical solution of the present invention.
The following description is not to be construed as limiting the scope of the present invention, as any reference to the concepts of upward and downward isotropy or azimuthal orientation is made to the positional state of fig. 1.
Referring to fig. 1 to 5, there is shown a cylinder 1, a lock nut fitting screw 111 is formed on an upper inner wall of a cylinder chamber 11 of the cylinder 1, and a stopper 112 is formed on a lower inner wall of the cylinder chamber 11; there are shown a spinneret plate 2, a melt distribution plate 3, a deflector plate 4, a filter cartridge 5, a melt introduction plate 6 and a lock nut 7 which are disposed in the barrel cavity 11 in this order from bottom to top, the spinneret plate 2 being supported on the aforementioned retainer ring 112, a plurality of annular distribution areas 21 (three but not limited to three in this embodiment) of spinneret holes being formed on the spinneret plate 2, the annular distribution areas 21 of spinneret holes being formed around the circumferential direction of the spinneret plate 2 and successively approaching the center direction of the spinneret plate 2 from the edge portion of the spinneret plate 2 in a state of forming concentric circles with the center (i.e., the center) of the spinneret plate 2 as a reference, the annular distribution areas 21 of spinneret holes being formed with spinneret holes i 211 and ii 212, the spinneret holes I211 and II 212 penetrate from the upper surface to the lower surface of the spinneret plate 2 (i.e., penetrate the thickness direction of the spinneret plate 2) and form a spaced-apart positional relationship with each other, a melt distribution plate 3 is supported on the spinneret plate 2, a pair of distribution plate melt guide grooves I31 and a pair of distribution plate melt guide grooves II 32 are provided on the side of the melt distribution plate 3 facing upward, the pair of distribution plate melt guide grooves I31 and the pair of distribution plate melt guide grooves II 32 form a spaced-apart positional relationship with each other and surround the melt distribution plate 3 by 90 DEG (shown in FIG. 3), a distribution plate melt guide groove I311 is provided at each position corresponding to both ends of the pair of distribution plate melt guide grooves I31, a distribution plate melt guide groove II 321 is provided at each position corresponding to both ends of the pair of distribution plate melt guide grooves II 32, the distributor plate melt diversion holes I311 and II 321 extend toward the bottom or bottom surface of the melt distributor plate 3, around the circumferential direction of the melt distributor plate 3 at a position corresponding to the annular distribution area 21 of the nozzle holes at the bottom or bottom surface of the melt distributor plate 3 and are formed in concentric circles from the edge of the melt distributor plate 3 to the center of the melt distributor plate 3, a plurality of distributor plate melt diversion grooves I33 and II 34 are formed in the circumferential direction of the melt distributor plate 3 and are successively closer to the center of the melt distributor plate 3 from the edge of the melt distributor plate 3, the distributor plate melt diversion grooves I33 and II 34 are formed in a spaced positional relationship (shown in FIG. 4) with each other and are partitioned by the melt diversion groove walls 35, a melt diversion groove diversion chamber I351 is formed at a spacing on one side of the melt diversion groove walls 35, and a melt diversion groove diversion cavity II 352 is formed at the other side of the melt diversion groove wall 35 at intervals, the melt diversion groove diversion cavity I351 and the melt diversion groove diversion cavity II 352 form a staggered relation, in particular, the two are circularly connected with each other like Chinese character concave shapes and convex shapes, the melt diversion groove diversion hole I311 of the distribution plate is communicated with the melt diversion groove I33 of the distribution plate, the melt diversion hole II 321 of the distribution plate is communicated with the melt diversion groove II 34 of the distribution plate, the melt diversion groove diversion cavity I351 corresponds to and is communicated with the spinneret hole I211, the melt diversion groove diversion cavity II 352 corresponds to and is communicated with the spinneret hole II 212, the distribution plate 4 is supported on the melt distribution plate 3, a central diversion hole 41 of the distribution plate is arranged at the central position of the distribution plate 4, and a pair of baffle plate diversion holes 42 penetrating the thickness direction of the baffle plate 4 are respectively arranged at the positions corresponding to the two sides of the bottom of the baffle plate central diversion hole 41, a baffle plate central diversion hole diversion cavity 411 communicated with the baffle plate central diversion hole 41 is respectively arranged at the positions corresponding to the two sides of the bottom of the baffle plate central diversion hole 41, the baffle plate central diversion hole diversion cavity 411 is communicated with the pair of the baffle plate melt diversion grooves I31, a pair of baffle plate diversion holes 42 penetrating the thickness direction of the baffle plate 4 are respectively arranged at the edge part of the baffle plate 4 and the positions corresponding to the pair of the baffle plate melt diversion grooves II 32, the pair of baffle plate diversion holes 42 are communicated with the pair of the baffle plate melt diversion grooves II 32, the bottom of the filter cartridge 5 is supported on the baffle plate 4, a filter cartridge central diversion hole 5111 is arranged on the filter cartridge bottom wall 511 of the filter cartridge cavity 51 of the filter cartridge 5 at intervals, the filter cartridge central diversion hole 5111 is communicated with the baffle plate central diversion hole 41, an outer guide plate 52 of the filter cartridge is formed on the lower outer wall of the filter cartridge 5 around the circumference of the filter cartridge 5, guide plate guide holes 521 of the outer guide plate of the filter cartridge are formed on the outer guide plate 52 of the filter cartridge at intervals, the guide plate guide holes 521 of the outer guide plate of the filter cartridge are communicated with the guide plate guide holes 42 of the pair, a center gland support ring 512 is formed on the upper cavity wall of the filter cartridge cavity 51 of the filter cartridge 5, an upper filter screen 5121 of the filter cartridge is arranged on the center gland support ring 512, a center gland 5122 is arranged on the upper filter screen 5121 of the filter cartridge, a center gland guide hole 51221 is formed in the center of the center gland 5122, the center gland guide hole 51221 is communicated with the filter cartridge cavity 51, wherein a lower filter screen 5112 of the filter cartridge is laid on the bottom wall 511 of the filter cartridge cavity of the outer guide plate of the filter cartridge 52, the middle part of the melt introduction plate 6 is supported at the upper part of the filter cartridge 5, a melt introduction plate bottom filter screen 63 is arranged around the periphery corresponding to the bottom part of the melt introduction plate 6, a melt introduction plate center guide hole 61 is arranged at the center position of the melt introduction plate 6, a melt introduction plate side guide hole 62 is arranged on the side wall of the melt introduction plate 6, the melt introduction plate center guide hole 61 corresponds to and is communicated with the center gland guide hole 51221, the melt introduction plate side guide hole 62 is communicated with the filter cartridge outer guide plate guide hole 521, a lock nut 7 is sleeved on the melt introduction plate 6 at a position corresponding to the outer side of the upper part of the melt introduction plate 6 and is fixed with the lock nut matching threads 111, and the spinneret plate 2, the melt distribution plate 3, the guide plate 4, the filter cartridge 5 and the melt introduction plate 6 are locked in the cartridge cavity 11 of the cartridge 1 by the lock nut 7.
A spinneret supporting step groove 22 is formed at the edge part of the bottom of the spinneret plate 2 and around the circumferential direction of the spinneret plate 2, the spinneret plate 2 is supported on the limiting ring 112 through the spinneret supporting step groove 22, and a spinneret bottom edge sealing ring 221 is arranged between the spinneret supporting step groove 22 and the limiting ring 112; a pair of die positioning pins 23 are formed at the edge portion of the die plate 2 on the side facing upward, the die positioning pins 23 being spaced 180 ° apart from each other around the circumferential direction of the die plate 2, and a pair of die positioning pin engaging holes 36 (shown in fig. 5) are formed at the edge portion of the melt distribution plate 3 on the side facing downward and at positions corresponding to the pair of die positioning pins 23, the pair of die positioning pins 23 penetrating into the pair of die positioning pin engaging holes 36.
A filter cartridge stack ring 53 is extended on the filter cartridge 5 at a peripheral edge portion corresponding to a downward-facing side of the filter cartridge chamber bottom wall 511, a bottom of the filter cartridge stack ring 53 is supported at an upward-facing side of the guide disk 4, and a stack ring chamber of the filter cartridge stack ring 53 is configured as a filter cartridge confluence chamber 531, the filter cartridge confluence chamber 531 communicating with the filter cartridge center guide flow hole 5111 and the guide disk center guide flow hole 41; a diaphragm stack side 523 extends downward around the circumferential direction of the outer diaphragm 52 at the edge of the outer diaphragm 52, and a space between the inner wall of the diaphragm stack side 523 and the outer wall of the outer diaphragm ring 53 is formed as a diaphragm converging chamber 5231, and the diaphragm converging chamber 5231 communicates with the outer diaphragm orifice 521 and the pair of diaphragm diverging orifices 42.
A cartridge center filter medium 54 is disposed in the cartridge chamber 51 of the cartridge 5 and in a region between the upper filter screen 5121 and the lower filter screen 5112; a cartridge peripheral filter medium 55 is disposed between the melt introduction plate bottom screen 63 of the melt introduction plate 6 and the cartridge outer deflector screen 522 and also between the outer wall of the cartridge 5 and the inner wall of the cartridge chamber 11.
In this embodiment, the central filter medium 54 of the cartridge and the peripheral filter medium of the cartridge are filter sand (known technology).
A central gland chamber 56 is formed at the upper portion of the filter cartridge 5 and above the central gland support ring 512, the central gland 5122 is formed in the central gland chamber 56, the central gland 5122 is formed in a circular truncated cone shape, and one small diameter end (i.e., small head end) of the central gland 5122 faces upward, and a central gland sealing ring 51222 is sleeved on the central gland 5122, and the central gland sealing ring 51222 is in sealing fit with the inner wall of the central gland chamber 56 and is also in sealing fit with the melt introduction disc 6.
A central column 64 of the melt introduction plate is formed at the upper center of the melt introduction plate 6, a central cartridge-engaging cavity 65 is formed at the lower portion of the melt introduction plate 6, the central cartridge-engaging cavity 65 is formed at the central position of the central column 64 of the melt introduction plate, the cartridge-engaging cavity 65 is engaged with the upper portion of the cartridge 5, a peripheral guide groove 66 of the melt introduction plate is formed on the melt introduction plate 6 around the central column 64 of the melt introduction plate, the lateral guide holes 62 of the melt introduction plate are communicated with the guide groove 66 of the melt introduction plate, and the central gland seal 51222 is sealingly engaged with the wall of the cartridge-engaging cavity 65.
A melt introduction plate center pillar seal 641 is provided at the top of the melt introduction plate center pillar 64, a melt introduction plate guide groove step 661 is provided at the upper portion of the melt introduction plate guide groove 66, a melt introduction plate guide groove step seal 661 is provided at the melt introduction plate guide groove step 661, a melt introduction plate seal slope 67 is provided at the outer wall of the melt introduction plate 6 and at the lower portion around the circumferential direction of the melt introduction plate 6, a slope seal 671 is provided at the corresponding melt introduction plate seal slope 67, and the slope seal 671 is in sealing engagement with the cavity wall of the cylinder cavity 11 of the cylinder 1.
A central gland head mating cavity 651 is formed at the top of the cartridge filter mating cavity 65, a central gland head 51223 is formed at the top of the central gland 5122, the central gland head 51223 extends into the central gland head mating cavity 651 and a head end face seal 51224 is provided on the top surface of the central gland head 51223.
Preferably, and as shown in fig. 1, a nut operation tool groove 71 is formed at a spacing on the side surface of the lock nut 7 facing upward so that the lock nut 7 is operated by a tool at a position corresponding to the nut operation tool groove 71.
In the following, the applicant describes the use of the invention in which a feed nipple 8 is threadedly connected to the lock nut mating threads 111 at a location corresponding to the upper side of the melt introduction plate 6, the feed nipple 8 having a feed nipple central bore 81 and a melt introduction plate channel pilot bore 82, the feed nipple central bore 81 corresponding to and communicating with the melt introduction plate central pilot bore 61, the melt introduction plate channel pilot bore 82 communicating with the melt introduction plate channel 66. The melt material entering the melt introduction tray central deflector hole 61 is different from the melt material entering the melt introduction tray side deflector holes 62, for example, fibers for processing cigarette filter sticks, which are composite fibers, specifically, composed of polylactic acid (PLA) fibers and polypropylene fibers. Based on this, if the melt-introducing-disc center deflector hole 61 introduces a polylactic acid melt, the melt-introducing-disc side deflector hole 62 introduces a polypropylene melt, and vice versa. In order to simplify the description text, the applicant defines the polylactic acid melt as melt a and the polypropylene melt as melt B below, and melt a is introduced through the melt-introduction-tray-center deflector hole 61 and melt B is introduced through the melt-introduction-tray-side deflector hole 62.
The melt A sequentially enters a spinneret plate 2 through a central pressure plate diversion hole 51221, a filter cartridge upper filter screen 5121, a filter cartridge central filter medium 54 (filter sand) which is arranged in a filter cartridge cavity 51 and is positioned between the filter cartridge upper filter screen 5121 and a filter cartridge lower filter screen 5112, a filter cartridge central diversion hole 5111, a filter cartridge converging cavity 531, a guide disc central diversion hole 41, a guide disc central diversion hole diversion cavity 411, a pair of distribution disc melt diversion grooves I31, a distribution disc melt diversion groove I311, a distribution disc melt diversion groove I33 and a melt diversion groove diversion cavity I351, and is sprayed out through a spinneret hole I211 on the spinneret plate 2 to form melt trickles, namely fibers; at the same time, the melt B introduced from the melt introducing tray side deflector hole 62 enters the spinneret 2 through the melt introducing tray bottom filter screen 63, the filter cartridge peripheral filter medium 55 (filter sand), the filter cartridge deflector screen 522, the filter cartridge deflector hole 521, the deflector confluence chamber 5231, the pair of deflector diversion holes 42, the pair of distributor melt diversion trenches ii 32, the distributor melt diversion trench ii 321, the distributor melt diversion trench ii 34 and the melt diversion trench diversion chamber ii 352 in this order, and is ejected from the spinneret orifice ii 212 on the spinneret 2 to form a melt trickle, i.e. a fiber. Because the spinneret orifices I211 and the spinneret orifices II 212 are distributed at intervals, the trickle of the melt A from the spinneret plate 2 and the trickle of the melt B from the spinneret plate 2 in a parallel driving state can form the double-component fiber which is uniformly distributed by polylactic acid fiber and polypropylene fiber after being cooled, such as air cooling, and the fiber can meet the requirement of uniform blending in the subsequent processing, and is particularly suitable for manufacturing cigarette filter sticks.
In summary, the technical scheme provided by the invention overcomes the defects in the prior art, successfully completes the task of the invention, and faithfully honors the technical effects carried by the applicant in the technical effect column above.
Claims (10)
1. The spinning component for the double-component fiber is characterized by comprising a barrel body (1), wherein a lock nut matching thread (111) is formed on the upper inner wall of a barrel cavity (11) of the barrel body (1), and a limit ring (112) is formed on the lower inner wall of the barrel cavity (11); a spinneret plate (2), a melt distribution plate (3), a guide plate (4), a filter cartridge (5), a melt introduction plate (6) and a lock nut (7) which are sequentially arranged in the barrel cavity (11) from bottom to top, wherein the spinneret plate (2) is supported on the limit ring (112), a plurality of spinneret hole circular distribution areas (21) are formed on the spinneret plate (2), the spinneret hole circular distribution areas (21) surround the circumferential direction of the spinneret plate (2) and are sequentially close to the center direction of the spinneret plate (2) from the edge part of the spinneret plate (2) in a state of forming concentric circles with the center of the spinneret plate (2) as a reference, spinneret holes I (211) and spinneret holes II (212) are formed on the spinneret hole circular distribution areas (21), the spinneret holes I (211) and the spinneret holes II (212) are communicated from the upper surface to the lower surface of the spinneret plate (2) and form a position relationship of one another, the melt distribution plate (3) is supported on the spinneret plate (2), a pair of melt distribution plates (32) are formed by a pair of melt distribution plates (32) and a pair of melt distribution plates (32) are formed in a position of one side of the melt distribution plates (32) and a pair of melt distribution plates (32) are formed by one melt distribution plates) and one melt distribution plate (32) is formed by one melt distribution plate (31) and one melt distribution plate (31) is formed melt down). A distribution plate melt diversion hole I (311) is formed at positions corresponding to both ends of a pair of distribution plate melt diversion grooves I (31), a distribution plate melt diversion hole II (321) is formed at positions corresponding to both ends of a pair of distribution plate melt diversion grooves II (32), the distribution plate melt diversion hole I (311) and the distribution plate melt diversion hole II (321) extend toward the bottom of the melt distribution plate (3), a plurality of distribution plate melt diversion grooves I (33) and distribution plate melt diversion grooves II (34) are formed around the circumferential direction of the melt distribution plate (3) at positions corresponding to the annular distribution region (21) of the spray holes at the bottom of the melt distribution plate (3) and are successively located toward the center direction of the melt distribution plate (3) from the edge portion of the melt distribution plate (3) in a concentric circular state with respect to the center of the melt distribution plate (3), the distribution plate melt diversion grooves I (33) and the distribution plate melt diversion grooves II (34) form a spaced relationship with each other, and the diversion grooves (35) are formed at the other side of the melt diversion groove (351), and the diversion grooves (35) are spaced apart from one side (351) of the diversion grooves (35) and the diversion grooves (35) are formed at the other side of the diversion groove (35), the melt diversion channel diversion cavities II (352) are in a separated dislocation relation, the distribution disc melt diversion channel diversion holes I (311) are communicated with the distribution disc melt diversion channels I (33), the distribution disc melt diversion channel diversion holes II (321) are communicated with the distribution disc melt diversion channels II (34), the melt diversion channel diversion cavities I (351) are corresponding to and communicated with the spinneret holes I (211), the melt diversion channel diversion cavities II (352) are corresponding to and communicated with the spinneret holes II (212), the distribution disc (4) is supported on the melt distribution disc (3), a central diversion disc diversion hole (41) is arranged at the central position of the distribution disc (4), a central diversion disc diversion hole diversion cavity (411) communicated with the central diversion disc diversion holes (41) is arranged at the positions of the bottoms of the diversion disc at the two corresponding sides, the central diversion disc diversion hole diversion holes (41) are corresponding to the pair of distribution grooves (32) and the thickness of the distribution disc (32) is arranged at the positions of the diversion disc (32) corresponding to the pair of diversion grooves (42) which are communicated with the distribution disc (32), the bottom of the filter cartridge (5) is supported on the guide disk (4), a filter cartridge central guide hole (5111) is formed on the bottom wall (511) of the filter cartridge cavity (51) of the filter cartridge (5) at intervals, the filter cartridge central guide hole (5111) is communicated with the guide disk central guide hole (41), a filter cartridge outer guide disk (52) is formed on the outer wall of the lower part of the filter cartridge (5) around the circumference of the filter cartridge (5), a filter cartridge outer guide disk guide hole (521) is formed on the filter cartridge outer guide disk (52) at intervals, the filter cartridge outer guide disk guide hole (521) is communicated with the pair of guide disk diversion holes (42), a central gland supporting ring (512) is formed on the upper cavity wall of the filter cartridge cavity (51) of the filter cartridge (5), a filter cartridge upper filter screen (5121) is arranged on the central gland supporting ring (512), a central guide disk (51221) is formed in the center of the filter cartridge upper filter screen (5122), a filter cartridge outer guide disk (522) is paved on the filter cartridge cavity (35), the filter cartridge outer guide disk (522) is paved on the filter cartridge cavity (51), the middle part of the melt guiding disc (6) is supported at the upper part of the filter cylinder (5), a melt guiding disc bottom filter screen (63) is arranged at the periphery corresponding to the bottom of the melt guiding disc (6), a melt guiding disc center guide hole (61) is arranged at the center position of the melt guiding disc (6), a melt guiding disc side guide hole (62) is arranged on the side wall of the melt guiding disc (6), the melt guiding disc center guide hole (61) corresponds to and is communicated with the center gland guide hole (51221), the melt guiding disc side guide hole (62) is communicated with the filter cylinder outer guide disc guide hole (521), and a locking nut (7) is sleeved on the melt guiding disc (6) at a position corresponding to the outer side of the upper part of the melt guiding disc (6) and is fixed with the locking nut through a matching thread (111).
2. Spinning pack for bicomponent fibers according to claim 1, characterized in that a spinneret support step groove (22) is formed at the edge part of the bottom of the spinneret (2) and around the circumference of the spinneret (2), the spinneret (2) is supported on the stop collar (112) by means of the spinneret support step groove (22), and a spinneret bottom edge sealing ring (221) is arranged between the spinneret support step groove (22) and the stop collar (112); a pair of spinneret positioning pins (23) are formed at the edge part of the spinneret plate (2) on the side facing upwards, the spinneret positioning pins (23) are spaced 180 degrees apart from each other around the circumferential direction of the spinneret plate (2), a pair of spinneret positioning pin matching holes (36) are formed at the edge part of the melt distribution plate (3) on the side facing downwards and at the position corresponding to the spinneret positioning pins (23), and the spinneret positioning pins (23) penetrate into the spinneret positioning pin matching holes (36).
3. A spinning pack for bicomponent fibers according to claim 1, characterized in that a filter cartridge stack ring (53) is extended on the filter cartridge (5) and at a peripheral edge portion corresponding to a side of the bottom wall (511) of the cartridge chamber facing downward, the bottom of the filter cartridge stack ring (53) is supported at the side of the deflector disc (4) facing upward, and the stack ring chamber of the filter cartridge stack ring (53) is constituted as a filter cartridge confluence chamber (531), the filter cartridge confluence chamber (531) being communicated with the filter cartridge center deflector hole (5111) and the deflector disc center deflector hole (41); a diaphragm stack edge (523) extends downwards at the edge of the outer diaphragm (52) of the filter cartridge and surrounds the circumferential direction of the outer diaphragm (52) of the filter cartridge, a space between the inner wall of the diaphragm stack edge (523) and the outer wall of the filter cartridge stack ring (53) is formed as a diaphragm converging chamber (5231), and the diaphragm converging chamber (5231) is communicated with the diaphragm flow guide holes (521) of the outer diaphragm of the filter cartridge and the pair of diaphragm flow dividing holes (42).
4. A spinning pack for bicomponent fibres according to claim 1, characterized in that a cartridge centre filter medium (54) is provided in the cartridge chamber (51) of the cartridge (5) and in the area between the cartridge upper screen (5121) and the cartridge lower screen (5112); a cartridge peripheral filter medium (55) is arranged between the melt introduction plate bottom filter screen (63) of the melt introduction plate (6) and the cartridge outer guide plate filter screen (522) and between the outer wall of the cartridge (5) and the inner wall of the cartridge chamber (11).
5. The spin pack assembly for bicomponent fibers of claim 4 wherein the central filter media (54) of the cartridge and the peripheral filter media of the cartridge are sand filters.
6. Spinning pack for bicomponent fibres according to claim 1, characterized in that a central gland chamber (56) is formed in the upper part of the filter cartridge (5) above the central gland support ring (512), the central gland (5122) being located in the central gland chamber (56), the central gland (5122) being shaped as a truncated cone with the small diameter end of the central gland (5122) facing upwards, a central gland sealing ring (51222) being provided on the central gland (5122), which central gland sealing ring (51222) is in sealing engagement with the inner wall of the central gland chamber (56) and at the same time with the melt-introducing disc (6).
7. A spinning pack for bicomponent fibers according to claim 1, characterized in that a melt introduction disc central column (64) is formed at the central position of the upper part of the melt introduction disc (6), a filter cartridge fitting chamber (65) is formed at the lower part of the melt introduction disc (6), the melt introduction disc central guide hole (61) is opened at the central position of the melt introduction disc central column (64), the filter cartridge fitting chamber (65) is fitted with the upper part of the filter cartridge (5), a melt introduction disc guide groove (66) is formed on the melt introduction disc (6) and around the periphery of the melt introduction disc central column (64), the melt introduction disc side guide hole (62) is communicated with the melt introduction disc guide groove (66), and the central gland seal ring (51222) is in sealing fit with the cavity wall of the filter cartridge fitting chamber (65).
8. The spinning pack for bicomponent fibers according to claim 7, characterized in that a melt introduction disc center post seal ring (641) is provided at the top of the melt introduction disc center post (64), a melt introduction disc guide groove step (661) is formed at the upper portion of the melt introduction disc guide groove (66), a melt introduction disc guide groove step seal ring (661) is provided on the melt introduction disc guide groove step (661), a melt introduction disc seal slope (67) is formed on the outer wall of the melt introduction disc (6) and in the circumferential direction of the lower portion around the melt introduction disc (6), a slope seal ring (671) is provided on the seal slope (67) corresponding to the melt introduction disc, and the slope seal ring (671) is in sealing fit with the cavity wall of the cylinder cavity (11) of the cylinder (1).
9. The spinning pack for bicomponent fibers according to claim 7, characterized in that a central gland head fitting cavity (651) is formed at the top of the filter cartridge fitting cavity (65), a central gland head (51223) is formed at the top of the central gland (5122), the central gland head (51223) extends into the central gland head fitting cavity (651) and a tube head end seal ring (51224) is provided on the top surface of the central gland head (51223).
10. Spinning pack for bicomponent fibres according to claim 1, characterized in that nut handling tool grooves (71) are formed at intervals on the upwardly facing side surface of the lock nut (7).
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| CN201810980247.2A CN108707987B (en) | 2018-08-27 | 2018-08-27 | Spinning assembly for bicomponent fibers |
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| CN201810980247.2A CN108707987B (en) | 2018-08-27 | 2018-08-27 | Spinning assembly for bicomponent fibers |
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| CN110106565B (en) * | 2019-06-20 | 2024-01-23 | 苏州金泉新材料股份有限公司 | U-shaped annular blowing cooling device for short fiber melt spinning |
| PL3782711T3 (en) | 2019-08-19 | 2022-06-20 | Alfa Laval Moatti | Filtering unit with improved cover assembly |
| CN111058106B (en) * | 2019-12-31 | 2020-10-23 | 深圳市宏翔新材料发展有限公司 | Preparation method of flame-retardant canvas |
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| GB1313333A (en) * | 1970-07-08 | 1973-04-11 | Toray Industries | Spinning method and spinning pack for the method |
| CN100338271C (en) * | 2004-03-23 | 2007-09-19 | 中国石化仪征化纤股份有限公司 | Composite spinning component entities including double constituents |
| CN1718876A (en) * | 2005-07-21 | 2006-01-11 | 上海交通大学 | Preparation method of nano-load type high effciiency disinfecting sterilizing non woven fabric |
| JP2008144289A (en) * | 2006-12-07 | 2008-06-26 | Teijin Fibers Ltd | Spinneret for conjugated fiber |
| CN102395464A (en) * | 2009-02-27 | 2012-03-28 | 埃克森美孚化学专利公司 | Biaxially elastic nonwoven laminates having inelastic zones |
| CN101906670B (en) * | 2010-08-26 | 2011-12-14 | 东华大学 | Melt spinning solid-liquid composite phase change fiber spinning equipment and preparation method thereof |
| CN104562245B (en) * | 2015-01-28 | 2017-02-22 | 河南省龙都生物科技有限公司 | Polylactic acid double-component composite fiber double-spray-orifice parallel type spinning component |
| CN204690210U (en) * | 2015-05-13 | 2015-10-07 | 长兴圣帆纺织有限公司 | A kind of high-tension fiber |
| CN106149071B (en) * | 2016-08-31 | 2018-11-06 | 王家铭 | Compound parallel type is from Curl staple fiber and production method outside two-component spinneret |
| US20180223454A1 (en) * | 2017-02-07 | 2018-08-09 | Earth Renewable Technologies | Bicomponent fiber additive delivery composition |
| CN208762611U (en) * | 2018-08-27 | 2019-04-19 | 苏州金泉新材料股份有限公司 | The filament spinning component of bicomponent fibers |
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