CN111118637A - Two-component composite fiber spinning assembly - Google Patents
Two-component composite fiber spinning assembly Download PDFInfo
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- CN111118637A CN111118637A CN202010082413.4A CN202010082413A CN111118637A CN 111118637 A CN111118637 A CN 111118637A CN 202010082413 A CN202010082413 A CN 202010082413A CN 111118637 A CN111118637 A CN 111118637A
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- melt
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- component melt
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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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- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
A two-component composite fiber spinning assembly belongs to the technical field of composite spinning equipment. Comprises a cylinder body; the spinneret plate is arranged at the bottom of the barrel cavity and provided with spinneret plate capillary spinneret orifices; the melt distribution plate is superposed above the spinneret plate, is provided with a melt distribution hole, and is provided with a left collecting cavity and a right collecting cavity on one side; the double-cavity filter cylinder is arranged at the upper part of the cylinder cavity and is provided with a left filter cavity and a right filter cavity, a first component melt filtering mechanism is arranged in the left filter cavity, and a second component melt filtering mechanism is arranged in the right filter cavity; the cylinder cover is fixed with the top surface of the cylinder; the method is characterized in that: the spinneret plate capillary spinneret orifices comprise a first component melt discharge hole and a second component melt discharge hole of the spinneret plate; the melt distribution hole comprises a first component melt guide hole, a second component melt guide hole, a first component melt annular guide groove and a second component melt annular guide groove; the cylinder cover is provided with a first component melt introducing hole and a second component melt introducing hole. Ensuring the quality of the bicomponent fiber; the melt leakage probability is reduced; the height is reduced, the inspection and the maintenance are convenient, and the structure is simplified.
Description
Technical Field
The invention belongs to the technical field of composite spinning equipment, and particularly relates to a two-component composite fiber spinning assembly.
Background
Typical examples of the above-mentioned bicomponent conjugate fibers include polylactic acid bicomponent conjugate fibers spun from a high molecular weight polylactic acid melt and a low molecular weight polylactic acid melt having different molecular weights, for which reference is made to "polylactic acid bicomponent conjugate fiber spinning process" described in chinese patent application publication No. CN 105714391A. However, the above-mentioned bicomponent conjugate fiber is not limited to the polylactic acid bicomponent conjugate fiber, and may be, for example, bicomponent conjugate fibers such as those mentioned by CN101109110A, CN101798714B, and CN 104195673B.
Taking polylactic acid bicomponent composite fiber as an example, it is generally favored by people because it has good degradability to protect the environment and excellent bacteriostatic skin-care properties to make close-fitting clothes. However, because the temperature zone of the polylactic acid melt is very narrow, the melt degradation is easy to occur during the spinning process, and particularly, the melting temperature deviation of two melts such as the polylactic acid melts with high and low molecular weights is large, the temperature of the two melts can affect each other at the place where the two melts are close to each other after entering the same spinning assembly from respective spinning boxes, so that the fiber quality is difficult to ensure. Particularly, because the filtering melting cavity of the spinning assembly used for melt spinning the short fibers is relatively large, the problem that the temperatures of the two melts are mutually influenced is more prominent.
The published chinese patent literature, which discloses technical information related to a bicomponent composite fiber spinning assembly, typically "inner filter structure of a polylactic acid bicomponent composite fiber spinning assembly" as recommended in CN204509515U, can achieve the object of the invention described in paragraph 0005 of the specification and embody the technical effects mentioned in paragraphs 0010 to 0024 of the specification, but has the following disadvantages: firstly, two polylactic acid melts respectively filtered by the upper sand cup and the lower sand cup are converged into the same capillary spinneret orifice and are sprayed out from the same capillary spinneret orifice after reaching a feeding groove of a spinneret plate, so that the uniformity, namely the consistency degree of the two different polylactic acid melts is difficult to guarantee, and the quality of the polylactic acid two-component composite fiber is influenced finally; secondly, because the upper sand cup filter sand and the lower sand cup filter sand are respectively introduced into the two feeding holes at the top of the two melts in the height direction, namely the polylactic acid A component feeding hole and the polylactic acid B component feeding hole, the spinning box and the two feeding holes are required to be conveyed by a box melt conveying pipeline, so that the connecting difficulty of the spinning box and the spinning assembly is increased, and the leakage probability is increased; thirdly, since an upper sand cup and a lower sand cup for filtering two kinds of melt, respectively, are used and a feed distribution plate having a connection pipe is provided between the upper and lower sand cups, the structure is relatively complicated. In view of the foregoing, there is a need for improvement, and the technical solutions described below are made in this context.
Disclosure of Invention
The invention aims to provide a bicomponent composite fiber spinning component which is beneficial to converging two melts at a spinneret orifice part on a spinneret plate and extruding and expanding the two melts, so that the uniformity of the amounts of the two melts can be always ensured, the quality of bicomponent composite fibers can be ensured, the connection with a spinning box body can be realized without using a pipeline, the leakage probability of the melts can be obviously reduced, the height can be obviously reduced, and a feeding distribution plate with a connecting pipe is eliminated, so that the structure can be simplified.
The task of the invention is completed in this way, a two-component composite fiber spinning assembly, which comprises a cylinder body; the spinneret plate is arranged at the bottom of the barrel body cavity of the barrel body and provided with spinneret plate capillary spinneret orifices; a melt distribution plate, which is superposed above the spinneret and fixed with the spinneret, and is provided with a melt distribution hole communicated with the spinneret capillary spinneret holes, and a left melt distribution plate collecting cavity and a right melt distribution plate collecting cavity which are communicated with the melt distribution hole are formed on the upward side of the melt distribution plate; a double-cavity filter cartridge which is arranged at the upper part of the cartridge cavity and is provided with a left filter cavity and a right filter cavity which are separated from each other, wherein a first component melt filtering mechanism is arranged in the left filter cavity, a second component melt filtering mechanism is arranged in the right filter cavity, the first component melt filtering mechanism corresponds to and is communicated with the left collecting cavity of the melt distribution plate, and the second component melt filtering mechanism corresponds to and is communicated with the right collecting cavity of the melt distribution plate; the cylinder cover is fixed with the top surface of the cylinder at a position corresponding to the upper part of the double-cavity filter cylinder; characterized in that the spinneret plate capillary spinneret orifices comprise spinneret plate first component melt discharge orifices and spinneret plate second component melt discharge orifices which are arranged at intervals in a state of surrounding the periphery of the spinneret plate and forming a concentric spinneret plate first component melt discharge orifice annular distribution ring and a spinneret plate second component melt discharge orifice annular distribution ring from the periphery of the spinneret plate to the center direction of the spinneret plate, wherein the first component melt discharge hole annular distribution ring and the second component melt discharge hole annular distribution ring form a spaced position relationship with each other, and the first component melt discharge holes of the spinneret plate on the annular distribution ring of the first component melt discharge holes and the second component melt discharge holes of the spinneret plate on the annular distribution ring of the second component melt discharge holes which are adjacent are converged at the position of the spinneret plate spinneret orifice arranged at the downward side of the spinneret plate; the melt distribution hole comprises a first component melt guide hole of a melt distribution plate, a second component melt guide hole of the melt distribution plate, a first component melt annular guide groove and a second component melt annular guide groove, wherein the first component melt guide hole corresponds to the left collecting cavity of the melt distribution plate, the second component melt guide hole corresponds to the right collecting cavity of the melt distribution plate, the first component melt annular guide groove and the second component melt annular guide groove are arranged around the periphery of the downward side of the melt distribution plate and are arranged from the periphery of the melt distribution plate to the central direction to form a first component melt distribution ring of the melt distribution plate and a second component melt distribution ring of the melt distribution plate, the upper part of the first component melt guide hole of the melt distribution plate is communicated with the left collecting cavity of the melt distribution plate, the lower part of the first component melt annular guide groove corresponds to and is communicated with the first component melt discharge hole of the spinneret plate, the upper part of the second component melt guide hole of the melt distribution plate is communicated with the right aggregate cavity of the melt distribution plate, the lower part of the second component melt guide hole is corresponding to and communicated with a second component melt annular guide groove which is corresponding to and communicated with a second component melt discharge hole of the spinneret plate, wherein the first component melt annular guide groove and the second component melt annular guide groove are in a spaced position relation with each other; a first component melt introducing hole and a second component melt introducing hole are formed in the barrel cover, the left end of the first component melt introducing hole is communicated with the first component melt filtering mechanism, the right end port of the first component melt introducing hole is positioned on the right side of the barrel cover and is communicated with the outside, the left end of the second component melt introducing hole is communicated with the second component melt filtering mechanism, and the right end port of the second component melt introducing hole is positioned on the right side of the barrel cover and is also communicated with the outside.
In a specific embodiment of the invention, a spinneret support is formed at the bottom of the cylinder around the circumference of the cylinder and on the side facing the cavity of the cylinder, a spinneret support seal ring is provided on the spinneret support, and a spinneret cavity is formed at the circumferential edge of the spinneret and on the side facing downward, and the spinneret support cavity is supported on the spinneret support via the spinneret support seal ring.
In another specific embodiment of the present invention, spinneret screw holes are formed in the spinneret plate at a spaced position from left to right in a central region of the spinneret plate, and melt distribution plate fixing screw holes are formed in the central region of a downward-facing side of the melt distribution plate at positions corresponding to the spinneret screw holes, and the melt distribution plate is fixed to the spinneret plate by passing the melt distribution plate fixing screws through the spinneret screw holes from below the spinneret plate and screwing them into the melt distribution plate fixing screw holes.
In yet another specific embodiment of the present invention, there are three of the spinneret plate first component melt discharge orifice annular distribution rings and the spinneret plate second component melt discharge orifice annular distribution rings; the number of the first component melt annular guide grooves and the number of the second component melt annular guide grooves are three respectively.
In yet another embodiment of the present invention, the barrel cavity, spinneret, melt distribution plate and dual chamber filter cartridge are oval in shape.
In a further specific embodiment of the invention, a left support plate support ring is formed at the bottom of the left filter cavity wall of the left filter cavity, surrounds the periphery of the left filter cavity wall and faces the left filter cavity; the first component melt filtering mechanism comprises a left gland, an upper left filter screen, a left filtering sand layer, a lower left filter screen and a left support plate, the left support plate is supported on a left support plate support ring, a left supporting plate material guiding hole which is penetrated from one side of the left supporting plate facing upwards to one side facing downwards is arranged on the left supporting plate at intervals, the material guide hole of the left support plate is communicated with the left material collecting cavity of the melt distribution plate, a left lower filter screen is laid on the left support plate, a left filtering sand layer is laid on the left lower filter screen, a left upper filter screen is arranged on the left filtering sand layer, a left gland is covered on the left upper filter screen, a first component melt feeding hole of the left gland bush, which penetrates through the left gland bush in the thickness direction, is formed in the center of the left gland bush, and the left end of the first component melt introducing hole formed in the barrel cover corresponds to and is communicated with the first component melt feeding hole of the left gland bush; a right supporting plate supporting ring is formed at the bottom of the right filtering cavity wall of the right filtering cavity, surrounds the periphery of the right filtering cavity wall and faces the right filtering cavity; the second component melt filtering mechanism comprises a right gland, a right upper filter screen, a right filtering sand layer, a right lower filter screen and a right support plate, the right support plate is supported on a right support plate support ring, a right supporting plate material guiding hole which is penetrated from one side of the right supporting plate facing upwards to one side facing downwards is arranged on the right supporting plate at intervals, the material guide hole of the right support plate is communicated with the right material collecting cavity of the melt distribution plate, a right lower filter screen is laid on the right support plate, a right filtering sand layer is laid on the right lower filter screen, a right upper filter screen is arranged on the right filtering sand layer, a right gland is covered on the right upper filter screen, and the central position of the right gland is provided with a right gland second component melt feeding hole which penetrates through the right gland in the thickness direction, and the left end of the second component melt introducing hole arranged on the barrel cover corresponds to and is communicated with the right gland second component melt feeding hole.
In a more specific embodiment of the present invention, a left gland sealing ring groove is formed between the peripheral edge portion of the left gland and the cavity wall of the left filter cavity, and a left gland sealing ring is embedded in the left gland sealing ring groove; a right gland sealing ring groove is formed between the peripheral edge part of the right gland and the cavity wall of the right filter cavity, and a right gland sealing ring is embedded in the right gland sealing ring groove.
In yet another specific embodiment of the present invention, a barrel cover left seal ring is disposed on a downward facing side of the barrel cover and at a position corresponding to between a left end of the first component melt introduction hole and the left gland first component melt feed hole, and a barrel cover right seal ring is disposed on a downward facing side of the barrel cover and at a position corresponding to between a left end of the second component melt introduction hole and the right gland second component melt feed hole.
In yet a more specific embodiment of the present invention, a first component melt introduction hole right end port sealing gasket is embedded in the cartridge cover at a position corresponding to the first component melt introduction hole right end port, and a second component melt introduction hole right end port sealing gasket is embedded in a position corresponding to the second component melt introduction hole right end port.
In yet another specific embodiment of the present invention, a barrel bolt hole is formed in an upper surface of the barrel, and a barrel cover fixing bolt is provided on the barrel cover at a position corresponding to the barrel bolt hole, and is screwed into the barrel bolt hole.
The invention has the technical effects that: the first component melt discharge hole of the spinneret plate and the second component melt discharge hole of the spinneret plate of the structural system of the spinneret plate capillary spinneret orifices on the spinneret plate are converged at the spinneret plate spinneret orifice on the side, facing downwards, of the spinneret plate, so that the two melts are extruded and expanded at the spinneret orifice of the spinneret plate, the uniformity of the amounts of the two melts is ensured all the time, and the quality of the bicomponent fiber is ensured; the cylinder cover is respectively provided with a first component melt introducing hole and a second component melt introducing hole for introducing the first component melt and the second component melt into the first component melt filtering mechanism and the second component melt filtering mechanism, and the right end port of the first component melt introducing hole and the right end port of the second component melt introducing hole are formed on the right side surface of the cylinder cover, so that the cylinder cover can be conveniently connected with the spinning box body in a pipeline-free state, and the melt leakage probability can be obviously reduced; the elimination of the prior art feed distribution plate with connecting tubes allows for a significant height reduction, ease of maintenance and simplified construction.
Drawings
FIG. 1 is a block diagram of an embodiment of the present invention.
Fig. 2 is a cross-sectional view of fig. 1.
FIG. 3 is a bottom schematic view of the melt distribution plate shown in FIGS. 1 and 2.
FIG. 4 is a schematic view of the present invention in cooperation with a spinning beam.
Detailed Description
In order to clearly understand the technical spirit and the advantages of the present invention, the applicant below describes in detail by way of example, but the description of the example is not intended to limit the technical scope of the present invention, and any equivalent changes made according to the present inventive concept, which are merely in form and not in material, should be considered as the technical scope of the present invention.
In the following description, all the concepts related to the directions or orientations of up, down, left, right, front and rear are based on the position state of fig. 1, and thus, should not be construed as particularly limiting the technical solution provided by the present invention. Further, it should be noted that: the word "sand" appearing in this application may also be used as "sand" because both words are used by the industry and have long been custom made and are not misinterpreted words.
Referring to fig. 1 to 3, there is shown a cylinder 1 having a rectangular shape on the outside; a spinneret plate 2 is shown, the spinneret plate 2 is arranged at the bottom of a barrel cavity 11 of a barrel body 1, and spinneret plate capillary spinneret orifices 21 are arranged on the spinneret plate 2; a melt distribution plate 3 is shown, the melt distribution plate 3 is superposed above the spinneret plate 2 and fixed with the spinneret plate 2, a melt distribution hole 31 is opened on the melt distribution plate 3, the melt distribution hole 31 is communicated with the spinneret plate capillary spinneret holes 21, and a melt distribution plate left collecting cavity 33 and a melt distribution plate right collecting cavity 34 are formed on the upward side of the melt distribution plate 3, the melt distribution plate left collecting cavity 33 and the melt distribution plate right collecting cavity 34 are communicated with the melt distribution hole 31; a dual chamber filter cartridge 4 is shown, the dual chamber filter cartridge 4 being disposed in an upper portion of the aforesaid cartridge chamber 11, and the dual chamber filter cartridge 4 having a left filter chamber 41 and a right filter chamber 42 separated from each other, a first component melt filter means 411 being disposed in the left filter chamber 41, and a second component melt filter means 421 being disposed in the right filter chamber 42, the first component melt filter means 411 corresponding to and communicating with the aforesaid left melt distribution plate collecting chamber 33, the second component melt filter means 421 corresponding to and communicating with the aforesaid right melt distribution plate collecting chamber 34; a cylinder cover 5, wherein the cylinder cover 5 is fixed with the top surface of the cylinder 1 at a position corresponding to the upper part of the double-cavity filter cylinder 4.
The technical points of the technical scheme provided by the invention are as follows: the spinneret capillary spinneret orifices 21 include spinneret first component melt discharge orifices 211 and spinneret second component melt discharge orifices 212 which are arranged around the spinneret 2 and spaced from each other in a manner that concentric annular distribution rings of spinneret first component melt discharge orifices and annular distribution rings of spinneret second component melt discharge orifices are formed from the periphery of the spinneret 2 toward the center of the spinneret 2, wherein the annular distribution ring of the first component melt discharge hole and the annular distribution ring of the second component melt discharge hole form a spaced position relationship, and the first component melt discharge holes 211 of the spinneret plate on the annular distribution ring of the first component melt discharge holes and the second component melt discharge holes 212 of the spinneret plate on the annular distribution ring of the second component melt discharge holes which are adjacent to each other are merged at the position of the spinneret plate spinneret orifice 213 arranged on the downward side of the spinneret plate 2; the melt distribution hole 31 includes a melt distribution plate first component melt guide hole 311 opened in the melt distribution plate 3 in a region corresponding to the melt distribution plate left collecting cavity 33, a melt distribution plate second component melt guide hole 312 opened in the melt distribution plate 3 in a region corresponding to the melt distribution plate right collecting cavity 34, a first component melt annular guide groove 313 and a second component melt annular guide groove 314 opened around the periphery of the downward side of the melt distribution plate 3 and in a state of forming a melt distribution plate first component melt annular distribution ring and a melt distribution plate second component melt annular distribution ring from the periphery of the melt distribution plate 3, an upper portion of the melt distribution plate first component melt guide hole 311 communicating with the melt distribution plate left collecting cavity 33, a lower portion thereof communicating with the first component melt annular guide groove 313, and the first component melt annular guide groove 313 communicating with the spinneret plate first component melt discharge hole 211 And communicating, the upper portion of the melt distribution plate second component melt guide aperture 312 communicating with the melt distribution plate right collection pocket 34, the lower portion corresponding to and communicating with the second component melt annular channel 314, and the second component melt annular channel 314 corresponding to and communicating with the aforementioned spinneret plate second component melt discharge aperture 212, wherein the first component melt annular channel 313 and the second component melt annular channel 314 are in a spaced apart positional relationship with one another; a first component melt introduction hole 51 and a second component melt introduction hole 52 are formed in the cylinder cover 5, the left end of the first component melt introduction hole 51 communicates with the first component melt filter 411, the right end port 511 of the first component melt introduction hole 51 is located on the right side of the cylinder cover 5 and communicates with the outside, the left end of the second component melt introduction hole 52 communicates with the second component melt filter 421, and the right end port 521 of the second component melt introduction hole 52 is located on the right side of the cylinder cover 5 and also communicates with the outside.
Referring to fig. 1 and 2, a spinneret holder 12 (also referred to as a "spinneret holder leg") is formed around the circumference of the barrel 1 at the bottom of the barrel 1 and on the side facing the barrel chamber 11, a spinneret holder seal ring 121 is provided on the spinneret holder 12, and a spinneret chamber 22 is formed at the circumferential edge portion of the spinneret 2 and on the downward side, and the spinneret chamber 22 is supported on the spinneret holder 12 via the spinneret holder seal ring 121, that is, the spinneret chamber 22 is supported on the spinneret holder seal ring 121.
A spinneret screw hole 23 is formed in the spinneret 2 at a distance from left to right in a central region of the spinneret 2, and a melt distribution plate fixing screw hole 35 is formed in a central region of a downward side of the melt distribution plate 3 at a position corresponding to the spinneret screw hole 23, and the melt distribution plate 3 is fixed to the spinneret 2 by a melt distribution plate fixing screw 351 passing through the spinneret screw hole 23 from below the spinneret 2 and screwing into the melt distribution plate fixing screw hole 35.
As shown in fig. 1 and 3, the number of the annular distribution rings of the first component melt discharge holes of the spinneret plate and the number of the annular distribution rings of the second component melt discharge holes of the spinneret plate are three respectively, namely three respectively; the first component melt annular channel 313 and the second component melt annular channel 314 are three each, i.e., three each.
In this embodiment, the barrel chamber 11, the spinneret 2, the melt distribution plate 3, and the dual chamber filter cartridge 4 are all oval in shape.
Continuing with fig. 1 and 2, a left support plate support ring 412 is formed at the bottom of the left filter cavity wall of the left filter cavity 41, around the periphery of the left filter cavity wall and facing the left filter cavity 41; the first constituent melt filtering means 411 includes a left cover 4111, an upper left screen 4112, a left sand filter 4113, a lower left screen 4114 and a left support plate 4115, the left support plate 4115 is supported on the left support plate support ring 412, a left support plate guide hole 41151 is formed in the left support plate 4115 in a spaced state from the upward side of the left support plate 4115 to the downward side, the left support plate guide hole 41151 is communicated with the left melt distribution plate collecting chamber 33, the lower left screen 4114 is laid on the left support plate 4115, the left sand filter 4113 is laid on the lower left screen 4114, the upper left screen 4112 is disposed on the left sand filter 4113, the left cover 4111 is covered on the upper left screen 4112, a left cover feed hole 41111 is formed in the center of the left cover 4111, a first constituent melt feed hole 41111 is formed in the left cover 4111, the left end of the first constituent melt feed hole formed in the barrel cover 4115 is communicated with the first constituent feed hole 41111, and the first constituent melt feed hole is communicated with the left cover 41111 .
A right support plate support ring 413 is formed at the bottom of the right filter cavity wall of the right filter cavity 42, surrounds the periphery of the right filter cavity wall and faces the right filter cavity 42; the second component melt filtering mechanism 421 includes a right pressing cover 4211, a right upper screen 4212, a right sand filtering layer 4213, a right lower screen 4214 and a right support plate 4215, the right support plate 4215 is supported on the right support plate support ring 413, the right support plate 4215 is provided with a right support plate guide hole 42151 penetrating from one side of the right support plate 4215 facing upward to one side facing downward at intervals, the right support plate guide hole 42151 is communicated with the right collecting chamber 34 of the melt distribution plate, the right lower screen 4214 is laid on the right support plate 4215, the right sand filtering layer 4213 is laid on the right lower screen 4214, the right upper screen 4212 is provided on the right sand filtering layer 4213, the right pressing cover 4211 is covered on the right upper screen 4212, a right pressing cover second component melt feeding hole 42111 penetrating through the thickness direction of the right pressing cover 4211 is provided at the center of the right pressing cover 4211, the left end of the second component melt feeding hole 52 opened on the cylinder cover 5 corresponds to the right pressing cover second component feeding hole 42111 and is communicated with the right pressing cover second component melt feeding hole 42111 .
Please refer to fig. 1 in combination with fig. 2, a left gland sealing ring groove 41112 is formed between the peripheral edge of the left gland 4111 and the cavity wall of the left filter chamber 41, and a left gland sealing ring 41113 is embedded in the left gland sealing ring groove 41112; a right gland packing groove 42112 is formed between the peripheral edge of the right gland 4211 and the wall of the right filter chamber 42, and a right gland packing 42113 is fitted into the right gland packing groove 42112.
A cylinder head left seal ring 53a is provided on the downward-facing side of the cylinder head 5 at a position corresponding to between the left end of the first component melt introduction hole 51 and the left gland first component melt feed hole 41111, and a cylinder head right seal ring 53b is provided on the downward-facing side of the cylinder head 5 at a position corresponding to between the left end of the second component melt introduction hole 52 and the right gland second component melt feed hole 42111.
Preferably, a first component melt-introduction-hole right-end port sealing gasket 54a is embedded in the aforementioned barrel cover 5 at a position corresponding to the aforementioned first component melt-introduction-hole right-end port 511, and a second component melt-introduction-hole right-end port sealing gasket 54b is embedded in a position corresponding to the aforementioned second component melt-introduction-hole right-end port 521.
A cylindrical bolt hole 13 is formed in the upper surface of the cylindrical body 1, a cylindrical cover fixing bolt 55 is disposed in the cylindrical cover 5 at a position corresponding to the cylindrical bolt hole 13, and the cylindrical cover fixing bolt 55 is screwed into the cylindrical bolt hole 13 to fix the cylindrical cover 5 to the cylindrical body 1 at a position corresponding to the upper side of the double-chamber filter cartridge 4.
Referring to fig. 4 in conjunction with fig. 1 to 3, fig. 4 shows a spinning beam 6 and a barrel outer box 7, the spinning beam 6 is located at the right side of the barrel 1 of the present invention, and a first beam outlet i 61 and a second beam outlet (not shown) of the spinning beam 6 are respectively in sealing abutment with the aforementioned first component melt inlet right end port sealing washer 54a, while a second beam outlet of the spinning beam 6, not shown in fig. 4, is in sealing abutment with the second component melt inlet right end port sealing washer 54 b. The cartridge 1 of the present invention is disposed in a cartridge outer case chamber 71 of a cartridge outer case 7 (i.e., an "incubator", the same applies hereinafter) together with the dual-chamber filter cartridge 4, and is tightened by a tightening bolt 72 disposed on the left wall of the cartridge outer case 7. Further, an insulating layer 711 and an outer case lid 712 are provided in the outer case chamber 71 in this order from the bottom up at a position corresponding to the upper side of the outer case lid 5.
A first component melt, such as a polylactic acid melt with a high molecular weight, is introduced from a first outlet port I61 of the tank into a first component melt introduction hole 51 through a center hole of a sealing gasket 54a at a right end port of the first component melt introduction hole and a right end port 511 of the first component melt introduction hole, and then sequentially enters the left collecting chamber 33 of the melt distribution plate through a left end of the first component melt introduction hole, a left capping first component melt inlet hole 41111, a left upper filter mesh 4112, a left filter sand layer 4113, a left lower filter mesh 4114 and a left support plate guide hole 41151. Meanwhile, a second component melt, such as a polylactic acid melt with a low molecular weight, is introduced from a second outlet of the box body to the second component melt introduction hole 52 through a center hole of a sealing ring 54b at the right end port of the second component melt introduction hole and the right end port 521 of the second component melt introduction hole, and then enters the right collecting cavity 34 of the melt distribution plate through the left end of the second component melt introduction hole, a right gland second component melt feeding hole 42111, a right upper filter screen 4212, a right filter sand layer 4213, a right lower filter screen 4214 and a right support plate guide hole 42151 in sequence.
The first component melt entering the left collecting cavity 33 of the melt distribution plate sequentially enters the first component melt discharge hole 211 of the spinneret plate through the first component melt guide hole 311 and the first component melt annular guide groove 313 of the melt distribution plate; the second component melt in the right collection cavity 34 of the melt distribution plate sequentially passes through the second component melt guide hole 312 and the second component melt annular guide groove 314 of the melt distribution plate and enters the second component melt discharge hole 212 of the spinneret plate, and the first component melt and the second component melt in the first component melt discharge hole 211 and the second component melt discharge hole 212 of the spinneret plate are merged and extruded and expanded at the position of the spinneret plate spinneret orifice 213.
In conclusion, the technical scheme provided by the invention overcomes the defects in the prior art, successfully completes the invention task and truly realizes the technical effects of the applicant in the technical effect column.
Claims (10)
1. A two-component composite fiber spinning assembly comprises a barrel (1); the spinneret plate (2) is arranged at the bottom of the barrel body cavity (11) of the barrel body (1), and spinneret plate capillary spinneret orifices (21) are formed in the spinneret plate (2); a melt distribution plate (3), the melt distribution plate (3) is superposed above the spinneret plate (2) and fixed with the spinneret plate (2), a melt distribution hole (31) is arranged on the melt distribution plate (3), the melt distribution hole (31) is communicated with the spinneret plate capillary spinneret holes (21), and a melt distribution plate left collecting cavity (33) and a melt distribution plate right collecting cavity (34) are formed on the upward side of the melt distribution plate (3), and the melt distribution plate left collecting cavity (33) and the melt distribution plate right collecting cavity (34) are communicated with the melt distribution hole (31); a dual-chamber filter cartridge (4), the dual-chamber filter cartridge (4) being disposed at an upper portion of the cartridge body chamber (11), and the dual-chamber filter cartridge (4) having a left filter chamber (41) and a right filter chamber (42) separated from each other, a first component melt filter mechanism (411) being disposed in the left filter chamber (41), and a second component melt filter mechanism (421) being disposed in the right filter chamber (42), the first component melt filter mechanism (411) corresponding to and communicating with the left melt distribution plate manifold chamber (33), and the second component melt filter mechanism (421) corresponding to and communicating with the right melt distribution plate manifold chamber (34); the cylinder cover (5) is fixed with the top surface of the cylinder (1) at a position corresponding to the upper part of the double-cavity filter cylinder (4); the spinneret plate capillary spinneret orifice (21) is characterized by comprising spinneret plate first component melt discharge orifices (211) and spinneret plate second component melt discharge orifices (212) which surround the periphery of the spinneret plate (2) and are arranged at intervals from the periphery of the spinneret plate (2) to the center direction of the spinneret plate (2) in a state of forming concentric spinneret plate first component melt discharge orifice annular distribution rings and spinneret plate second component melt discharge orifice annular distribution rings, wherein the first component melt discharge orifice annular distribution rings and the second component melt discharge orifice annular distribution rings form a spaced position relationship with each other, and the spinneret plate first component melt discharge orifices (211) on the two adjacent first component melt discharge orifice annular distribution rings and the spinneret plate second component melt discharge orifices (212) on the spinneret plate second component melt discharge orifice annular distribution rings are arranged on the spinneret plate side facing downwards of the spinneret plate (2) (213) The positions of (a) and (b) are converged; the melt distribution holes (31) comprise a first melt distribution plate component melt guide hole (311) corresponding to the left melt distribution plate collecting cavity (33) and arranged on the melt distribution plate (3), a second melt distribution plate component melt guide hole (312) corresponding to the right melt distribution plate collecting cavity (34) and arranged on the melt distribution plate (3), a first melt annular guide groove (313) and a second melt annular guide groove (314) which are arranged around the periphery of the downward side of the melt distribution plate (3) and are arranged from the periphery of the melt distribution plate (3) to the central direction to form a first melt distribution ring and a second melt distribution ring of the melt distribution plate, the upper part of the first melt distribution hole (311) of the melt distribution plate is communicated with the left melt distribution plate collecting cavity (33), a lower portion corresponding to and communicating with a first component melt annular channel (313), the first component melt annular channel (313) corresponding to and communicating with the spinneret first component melt discharge orifice (211), an upper portion of a melt distribution plate second component melt guide orifice (312) communicating with a melt distribution plate right manifold cavity (34), a lower portion corresponding to and communicating with a second component melt annular channel (314), the second component melt annular channel (314) corresponding to and communicating with the spinneret second component melt discharge orifice (212), wherein the first component melt annular channel (313) and the second component melt annular channel (314) are in a spaced apart positional relationship with each other; a first component melt introduction hole (51) and a second component melt introduction hole (52) are formed in the cylinder cover (5), the left end of the first component melt introduction hole (51) is communicated with the first component melt filtering mechanism (411), the right end port (511) of the first component melt introduction hole (51) is positioned at the right side of the cylinder cover (5) and is communicated with the outside, the left end of the second component melt introduction hole (52) is communicated with the second component melt filtering mechanism (421), and the right end port (521) of the second component melt introduction hole (52) is positioned at the right side of the cylinder cover (5) and is also communicated with the outside.
2. The bicomponent composite fiber spinning pack according to claim 1, characterized in that a spinneret holder (12) is formed at the bottom of the barrel (1) around the circumference of the barrel (1) and on the side facing the barrel chamber (11), a spinneret holder seal (121) is provided on the spinneret holder (12), a spinneret chamber (22) is formed at the circumferential edge of the spinneret (2) and on the side facing downward, and the spinneret support chamber (22) is supported on the spinneret holder (12) via the spinneret holder seal (121).
3. The bicomponent composite fiber spinning pack according to claim 1, characterized in that spinneret screw holes (23) are provided in the spinneret (2) at a spacing from left to right in a central region of the spinneret (2), and melt distribution plate fixing screw holes (35) are provided in a central region of a downward-facing side of the melt distribution plate (3) at positions corresponding to the spinneret screw holes (23), the melt distribution plate (3) being fixed to the spinneret (2) by melt distribution plate fixing screws (351) passing through the spinneret screw holes (23) from below the spinneret (2) and screwing into the melt distribution plate fixing screw holes (35).
4. The bicomponent composite fiber spinning pack according to claim 1, wherein there are three of said spinneret first component melt discharge orifice annular distribution rings and spinneret second component melt discharge orifice annular distribution rings, respectively; three first component melt annular guide grooves (313) and three second component melt annular guide grooves (314) are arranged respectively.
5. The bicomponent composite fiber spinning pack according to claim 1, characterized in that the barrel chamber (11), the spinneret (2), the melt distribution plate (3) and the double chamber filter cartridge (4) are oval in shape.
6. The bicomponent composite fiber spinning pack according to claim 1, wherein a left support plate support ring (412) is formed at the bottom of the left filter chamber wall of the left filter chamber (41) around the periphery of the left filter chamber wall and in the direction of the left filter chamber (41); the first component melt filtering mechanism (411) comprises a left pressing cover (4111), an upper left filter screen (4112), a left sand filtering layer (4113), a lower left filter screen (4114) and a left support plate (4115), wherein the left support plate (4115) is supported on a left support plate support ring (412), a left support plate guide hole (41151) which is communicated from one upward side of the left support plate (4115) to one downward side is formed in the left support plate (4115) in an interval state, the left support plate guide hole (41151) is communicated with the left melt distribution plate material collecting cavity (33), the lower left filter screen (4114) is laid on the left support plate (4115), the left sand filtering layer (4113) is laid on the lower left filter screen (4114), the upper left filter screen (4112) is arranged on the left sand filtering layer (4113), the left pressing cover (4111) is covered on the upper left filter screen (4112), and a first component melt feeding hole (41111) penetrating through the left pressing cover (4111) in the left direction is formed in the central position of the left pressing cover (4111), the left end of the first component melt introducing hole (51) formed on the barrel cover (5) corresponds to and is communicated with the left gland first component melt feeding hole (41111); a right supporting plate supporting ring (413) is formed at the bottom of the right filtering cavity wall of the right filtering cavity (42), surrounds the periphery of the right filtering cavity wall and faces the right filtering cavity (42); the second component melt filtering mechanism (421) comprises a right gland (4211), a right upper filter screen (4212), a right filtering sand layer (4213), a right lower filter screen (4214) and a right support plate (4215), the right support plate (4215) is supported on a right support plate support ring (413), a right support plate guide hole (42151) penetrating from one side of the right support plate (4215) to the other side of the right support plate is arranged on the right support plate (4215) at intervals, the right support plate guide hole (42151) is communicated with the right melt collecting cavity (34) of the melt distribution plate, the right lower filter screen (4214) is laid on the right support plate (4215), the right filtering sand layer (4213) is laid on the right lower filter screen (4214), the right upper filter screen (4212) is arranged on the right filtering sand layer (4213), the right gland (4211) covers the right upper filter screen (4212), and a second group of melt feeding holes 42111 penetrating through the right gland (4211) in the thickness direction are arranged at the central position of the right gland (4211), the left end of the second component melt introduction hole (52) opened on the barrel cover (5) corresponds to and communicates with the right gland second component melt feed hole (42111).
7. The bicomponent composite fiber spinning pack according to claim 6, wherein a left gland seal ring groove (41112) is formed between the peripheral edge portion of the left gland (4111) and the wall of the left filter chamber (41), and a left gland seal ring (41113) is embedded in the left gland seal ring groove (41112); a right gland sealing ring groove (42112) is formed between the peripheral edge part of the right gland (4211) and the cavity wall of the right filter cavity (42), and a right gland sealing ring (42113) is embedded in the right gland sealing ring groove (42112).
8. The bicomponent composite fiber spinning pack according to claim 6, characterized in that a barrel cover left sealing ring (53a) is provided at a downward facing side of the barrel cover (5) and at a position corresponding to between a left end of the first component melt introduction hole (51) and the left gland first component melt feed hole (41111), and a barrel cover right sealing ring (53b) is provided at a downward facing side of the barrel cover (5) and at a position corresponding to between a left end of the second component melt introduction hole (52) and the right gland second component melt feed hole (42111).
9. The bicomponent composite fiber spinning assembly according to claim 1, wherein a first component melt introduction hole right end port sealing washer (54a) is embedded on the cylinder cover (5) and at a position corresponding to the first component melt introduction hole right end port (511), and a second component melt introduction hole right end port sealing washer (54b) is embedded at a position corresponding to the second component melt introduction hole right end port (521).
10. The bicomponent composite fiber spinning pack according to claim 1, wherein a barrel bolt hole (13) is formed in an upper surface of the barrel (1), and a barrel cover fixing bolt (55) is provided on the barrel cover (5) at a position corresponding to the barrel bolt hole (13), and the barrel cover fixing bolt (55) is screwed into the barrel bolt hole (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010082413.4A CN111118637A (en) | 2020-02-07 | 2020-02-07 | Two-component composite fiber spinning assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010082413.4A CN111118637A (en) | 2020-02-07 | 2020-02-07 | Two-component composite fiber spinning assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111118637A true CN111118637A (en) | 2020-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010082413.4A Pending CN111118637A (en) | 2020-02-07 | 2020-02-07 | Two-component composite fiber spinning assembly |
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| Country | Link |
|---|---|
| CN (1) | CN111118637A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112921423A (en) * | 2021-01-22 | 2021-06-08 | 苏州金泉新材料股份有限公司 | Double-component fiber spinning assembly |
-
2020
- 2020-02-07 CN CN202010082413.4A patent/CN111118637A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112921423A (en) * | 2021-01-22 | 2021-06-08 | 苏州金泉新材料股份有限公司 | Double-component fiber spinning assembly |
| CN112921423B (en) * | 2021-01-22 | 2021-11-30 | 苏州金泉新材料股份有限公司 | Double-component fiber spinning assembly |
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