CN217438360U - Carbon fiber precursor dry-jet wet-spinning nozzle device - Google Patents
Carbon fiber precursor dry-jet wet-spinning nozzle device Download PDFInfo
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- CN217438360U CN217438360U CN202221525193.9U CN202221525193U CN217438360U CN 217438360 U CN217438360 U CN 217438360U CN 202221525193 U CN202221525193 U CN 202221525193U CN 217438360 U CN217438360 U CN 217438360U
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Abstract
The utility model discloses a carbon fibre precursor dry-jet wet spinning jet device, including spinneret subassembly, coagulation bath and protection casing, the protection casing install in on the spinneret subassembly, the opening of protection casing is downward, the protection casing is in the spinneret subassembly with the top region in the space that forms between the coagulation bath forms and is used for encircleing the semi-closed dry section air bed of silk thread, the spinneret subassembly with the below region in the space that forms between the coagulation bath is the dry section air bed of full open. The utility model discloses a wet spinning jet device is spouted futilely to carbon fibre precursor forms one section semi-enclosed space through installing the protection casing on spinning jet subassembly between spinning jet subassembly and coagulation bath to it is undulant to restrain the air current of dry section air bed in the wet spinning of futilely spouting, so reduced the broken silk of all ring edge borders to the influence and the spinning in-process of dry section air bed, and then reduced the coefficient of dispersion of silk thread density, improved the quality of precursor.
Description
Technical Field
The utility model relates to a stockbreeding technical field, in particular to carbon fiber precursor spouts wet spinning jet device futilely.
Background
In the production process of the dry-jet wet-spun raw yarn, the spinning solution discharged from the spinneret orifice passes through a dry section air layer and then runs into a coagulating bath for coagulating phase separation to form coagulated filaments. The distance between the air layer of the dry section, namely the distance between the spinning nozzle and the liquid level of the coagulation bath, is an important area for the physical change of the spinning solution although the distance is short, and the air flow of the air layer of the dry section and the fluctuation of the surrounding environment can influence the spinning process, so that the precursor with uniform wire density can not be prepared, and even the phenomenon of wire breakage is caused.
SUMMERY OF THE UTILITY MODEL
For overcoming the defects of the prior art, the utility model discloses a carbon fiber precursor dry-jet wet spinning nozzle device.
In order to achieve the above object, the utility model discloses a following technical scheme realizes:
the utility model discloses a carbon fiber precursor is spout wet spinning head device futilely, including spinneret subassembly, coagulation bath and protection casing, the protection casing install in on the spinneret subassembly, the opening of protection casing is down, the protection casing is in the spinneret subassembly with the top region in the space that forms between the coagulation bath forms and is used for encircleing the semi-closed dry section air bed of silk thread, the spinneret subassembly with the below region in the space that forms between the coagulation bath is the dry section air bed of full open.
Preferably, the distance between the bottom end surface of the protective cover and the liquid level of the coagulating bath in the coagulating bath groove is 0.5-0.7 mm.
Further preferably, the distance between the spinneret assembly and a dry section air layer between the liquid level of the coagulating bath in the coagulating bath tank is 3-8 mm.
Preferably, the distance between the inner wall of the protective cover and the outer wall of the spinning nozzle assembly is 200-300 mm.
Preferably, a fairing is arranged in the coagulating bath tank, and the silk threads sprayed by the spinneret assembly pass through the fairing.
Preferably, the coagulating bath is internally provided with a first yarn leading roller, the coagulating bath is externally provided with a second yarn leading roller, and the yarns passing through the fairing are sequentially output through the first yarn leading roller and the second yarn leading roller.
Compared with the prior art, the utility model discloses an at least, following advantage has:
the utility model discloses a wet spinning jet device is spouted futilely to carbon fibre precursor forms one section semi-enclosed space through installing the protection casing on spinning jet subassembly between spinning jet subassembly and coagulation bath to it is undulant to restrain the air current of dry section air bed in the wet spinning of futilely spouting, so reduced the broken silk of all ring edge borders to the influence and the spinning in-process of dry section air bed, and then reduced the coefficient of dispersion of silk thread density, improved the quality of precursor.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.
Fig. 1 is a schematic structural view of a dry-jet wet-spinning nozzle device for carbon fiber precursors, which is disclosed by the embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments and the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.
The utility model discloses a carbon fiber precursor is spout wet spinning head device futilely, including spinneret subassembly, coagulation bath and protection casing, the protection casing install in on the spinneret subassembly, the opening of protection casing is down, the protection casing is in the spinneret subassembly with the top region in the space that forms between the coagulation bath forms and is used for encircleing the semi-closed dry section air bed of silk thread, the spinneret subassembly with the below region in the space that forms between the coagulation bath is the dry section air bed of full open.
Preferably, the distance between the bottom end surface of the protective cover and the liquid level of the coagulating bath in the coagulating bath groove is 0.5-0.7 mm. The distance between the bottom end surface of the protective cover and the liquid level of the coagulating bath in the coagulating bath groove is the height of the air layer of the fully-open dry section.
Further preferably, the distance between the center of the spinneret assembly and a dry section air layer between the liquid level of the coagulating bath in the coagulating bath tank is 3-8 mm.
Preferably, the distance between the inner wall of the protective cover and the outer wall of the spinning nozzle assembly is 200-300 mm.
Preferably, a fairing is arranged in the coagulating bath tank, and the silk threads sprayed by the spinneret assembly pass through the fairing.
Further preferably, a first yarn leading roller is further arranged in the coagulating bath, a second yarn leading roller is arranged outside the coagulating bath, and the yarns passing through the fairing are sequentially output through the first yarn leading roller and the second yarn leading roller.
The technical solution of the present invention will be further explained and illustrated with reference to the following specific examples and comparative examples.
Example 1:
referring to fig. 1, the embodiment 1 of the utility model discloses a carbon fiber precursor is spout wet spinning head device futilely, including spinning head subassembly 1, coagulation bath 2 and protection casing 3, protection casing 3 is installed on spinning head subassembly 1, and the opening of protection casing 3 is downward, and protection casing 3 forms the semi-enclosed dry section air bed 4 that is used for encircleing the silk thread in the top region in the space that spinning head subassembly 1 and coagulation bath formed between 2, and the below region in the space that forms between spinning head subassembly 1 and the coagulation bath is full open dry section air bed 5. A fairing 8 is arranged in the coagulating bath 2, and the silk threads sprayed by the spinning nozzle assembly 1 pass through the fairing. A first yarn leading roller 6 is further arranged in the coagulation bath 2, a second yarn leading roller 7 is arranged outside the coagulation bath 2, and the yarns passing through the fairing 8 are sequentially output through the first yarn leading roller 6 and the second yarn leading roller 7.
Wherein, the distance from the bottom end surface of the protective cover 3 to the liquid level P of the coagulating bath in the coagulating bath 2 is 0.5 mm; the distance between the center of the spinneret assembly 1 and the air layer of the dry section between the liquid level P of the coagulation bath in the coagulation bath 2 is 3 mm; the distance between the inner wall of the shield 3 and the outer wall of the spin pack 1 was 200 mm.
Example 2:
referring to fig. 1, the embodiment 2 of the utility model discloses a carbon fiber precursor is spout wet spinning head device futilely, including spinning head subassembly 1, coagulation bath 2 and protection casing 3, protection casing 3 is installed on spinning head subassembly 1, and the opening of protection casing 3 is downward, and protection casing 3 forms the semi-enclosed dry section air bed 4 that is used for encircleing the silk thread in the top region in the space that spinning head subassembly 1 and coagulation bath formed between 2, and the below region in the space that forms between spinning head subassembly 1 and the coagulation bath is full open dry section air bed 5. A fairing is arranged in the coagulating bath 2, and the silk threads sprayed by the spinning nozzle assembly 1 pass through the fairing 8. A first silk leading roller 6 is further arranged in the coagulation bath 2, a second silk leading roller 7 is arranged outside the coagulation bath 2, and the silk threads passing through the fairing are sequentially output through the second silk leading roller 7 and the second silk leading roller 7.
Wherein, the distance from the bottom end surface of the protective cover 3 to the liquid level P of the coagulating bath in the coagulating bath 2 is 0.6 mm; the distance between the center of the spinneret assembly 1 and the air layer of the dry section between the liquid level P of the coagulation bath in the coagulation bath 2 is 6 mm; the distance between the inner wall of the shield 3 and the outer wall of the spin pack 1 was 240 mm.
Example 3:
referring to fig. 1, the embodiment 3 of the utility model discloses a carbon fiber precursor is spout wet spinning head device futilely, including spinning head subassembly 1, coagulation bath 2 and protection casing 3, protection casing 3 is installed on spinning head subassembly 1, and the opening of protection casing 3 is downward, and protection casing 3 forms the semi-enclosed dry section air bed 4 that is used for encircleing the silk thread in the top region in the space that spinning head subassembly 1 and coagulation bath formed between 2, and the below region in the space that forms between spinning head subassembly 1 and the coagulation bath is full open dry section air bed 5. A fairing is arranged in the coagulating bath 2, and the silk threads sprayed by the spinning nozzle assembly 1 pass through the fairing 8. A first silk leading roller 6 is further arranged in the coagulation bath 2, a second silk leading roller 7 is arranged outside the coagulation bath 2, and the silk threads passing through the fairing are sequentially output through the second silk leading roller 7 and the second silk leading roller 7.
Wherein, the distance from the bottom end surface of the protective cover 3 to the liquid level P of the coagulating bath in the coagulating bath 2 is 0.7 mm; the distance between the center of the spinneret assembly 1 and the air layer of the dry section between the liquid level P of the coagulation bath in the coagulation bath 2 is 8 mm; the distance between the inner wall of the shield 3 and the outer wall of the spin pack 1 is 300 mm.
Comparative example 1:
in this example 1, the spinning solution was spun by a spinneret assembly without a shield, passed through an air layer of a dry section, and then fed into a coagulation bath, coagulated and formed, and then fed by a feed roller. The distance from the center of the spinneret assembly to the liquid surface of the coagulation bath was 3 mm.
Comparative example 2:
in this example 2, the spinning solution was spun by a spinneret assembly without a shield, passed through an air layer of a dry section, and then fed into a coagulation bath, coagulated and formed, and then fed by a feed roller. The distance from the center of the spinneret assembly to the liquid surface of the coagulation bath was 6 mm.
Comparative example 3:
in this example 33, the spinning solution was spun from a spinneret assembly without a shield, passed through an air layer in a dry zone, and fed into a coagulation bath, coagulated and formed, and then fed through a feed roll. The distance from the center of the spinneret assembly to the liquid surface of the coagulation bath was 8 mm.
The correspondence between examples 1 to 3 and comparative examples 1 to 3 and the linear density CV value of the raw yarn is shown in the following Table 1:
attached table 1
In conclusion, the protective cover is arranged on the spinneret assembly, and a semi-closed space is formed between the spinneret assembly and the coagulating bath, so that the air flow fluctuation of a dry section air layer in dry-jet wet spinning is inhibited, the influence of the surrounding environment on the dry section air layer and broken filaments in the spinning process are reduced, the dispersion coefficient of the filament density is reduced, and the quality of the precursor is improved.
Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The utility model provides a carbon fiber precursor spouts wet spinning head device futilely which characterized in that: the protective cover is arranged on the spinneret assembly, an opening of the protective cover faces downwards, a semi-closed dry section air layer used for surrounding silk threads is formed in an area above a space formed between the spinneret assembly and the coagulating bath groove through the protective cover, and a fully-opened dry section air layer is formed in an area below the space formed between the spinneret assembly and the coagulating bath groove.
2. The carbon fiber precursor dry-jet wet-spinning spinneret device according to claim 1, wherein: the distance between the bottom end face of the protective cover and the liquid level of the coagulating bath in the coagulating bath groove is 0.5-0.7 mm.
3. The carbon fiber precursor dry-jet wet-spinning spinneret device according to claim 2, wherein: and the distance between the spinneret assembly and a dry section air layer between the liquid level of the coagulating bath in the coagulating bath tank is 3-8 mm.
4. The carbon fiber precursor dry-jet wet-spinning spinneret device according to claim 1, wherein: the distance between the inner wall of protection casing and the outer wall of spinning jet subassembly is 200 ~ 300 mm.
5. The carbon fiber precursor dry-jet wet-spinning spinneret device according to claim 1, wherein: and a fairing is arranged in the coagulating bath tank, and silk threads sprayed by the spinneret assembly pass through the fairing.
6. The carbon fiber precursor dry-jet wet-spinning spinneret device according to claim 5, wherein: the coagulating bath is internally provided with a first yarn leading roller, the coagulating bath is externally provided with a second yarn leading roller, and the yarns passing through the fairing are sequentially output through the first yarn leading roller and the second yarn leading roller.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221525193.9U CN217438360U (en) | 2022-06-17 | 2022-06-17 | Carbon fiber precursor dry-jet wet-spinning nozzle device |
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| CN202221525193.9U CN217438360U (en) | 2022-06-17 | 2022-06-17 | Carbon fiber precursor dry-jet wet-spinning nozzle device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117431645A (en) * | 2023-12-14 | 2024-01-23 | 福建省银河服饰有限公司 | Stone needle nanofiber preparation device and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117431645A (en) * | 2023-12-14 | 2024-01-23 | 福建省银河服饰有限公司 | Stone needle nanofiber preparation device and method |
| CN117431645B (en) * | 2023-12-14 | 2024-03-08 | 福建省银河服饰有限公司 | Stone needle nanofiber preparation device and method |
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